CN118523460B - Charging and discharging circuits, electronic equipment and vehicles - Google Patents

Abstract

The invention relates to a charge-discharge circuit, electronic equipment and a vehicle, wherein the charge-discharge circuit comprises a controller, a charge-discharge interface connected with the controller, a battery module, a first motor electric control assembly, a second motor electric control assembly and a first switch, wherein the first motor electric control assembly is connected with the second motor electric control assembly through the first switch, the first motor electric control assembly is also connected with the charge-discharge interface, and the second motor electric control assembly is connected with the battery module; and the controller is used for controlling the first switch to be closed under the condition of receiving the charge and discharge request, and controlling the first motor electric control assembly and the second motor electric control assembly to form a charge path or a discharge path with the battery module and the target equipment according to the charge and discharge request. In this way, a charging path or a discharging path matched with the battery module can be formed according to different charging and discharging requests, and the problem that a vehicle cannot be charged due to the fact that target equipment is not matched with the battery module can be effectively avoided.

Description

Translated fromChinese

充放电电路、电子设备及车辆Charging and discharging circuits, electronic equipment and vehicles

技术领域Technical Field

本公开涉及新能源汽车领域，具体地，涉及一种充放电电路、电子设备及车辆。The present disclosure relates to the field of new energy vehicles, and in particular, to a charging and discharging circuit, an electronic device and a vehicle.

背景技术Background Art

随着电动车辆市场的快速增长，充电基础设施在加速推进。目前，大部分的充电设施是固定安装在一个地方，且输出的电压范围较为固定，然而，不同类型的电动车辆的充电参数（例如充电电压、充电电流、功率等）往往不同，在通过输出的电压范围较为固定的充电设施对不同充电需求的电动车辆行充电时，会因为充电设施与车辆所需的充电参数不相匹配而导致无法对电动车辆进行充电的问题；并且由于充电设施是固定安装在一个地方，当面临一些突发状况时，例如电动车辆在抵达固定的充电桩之前电量耗尽；或者在偏远地区，充电站的分布不够密集，驾驶员难以找到充电站，比较容易出现无法为车辆充电的情况。With the rapid growth of the electric vehicle market, the charging infrastructure is accelerating. At present, most charging facilities are fixedly installed in one place, and the output voltage range is relatively fixed. However, the charging parameters (such as charging voltage, charging current, power, etc.) of different types of electric vehicles are often different. When charging electric vehicles with different charging requirements through charging facilities with a relatively fixed output voltage range, the charging parameters required by the charging facilities and the vehicles do not match, resulting in the problem that the electric vehicles cannot be charged; and because the charging facilities are fixedly installed in one place, when faced with some emergencies, such as the electric vehicle running out of power before reaching the fixed charging pile; or in remote areas, the distribution of charging stations is not dense enough, and it is difficult for drivers to find charging stations, which makes it easier for vehicles to be unable to charge.

发明内容Summary of the invention

本公开的目的是提供一种充放电电路、电子设备及车辆。The object of the present disclosure is to provide a charging and discharging circuit, an electronic device and a vehicle.

为了实现上述目的，根据本公开实施例的第一方面，提供一种充放电电路，所述充放电电路包括控制器，以及与所述控制器连接的充放电接口，电池模块，第一电机电控组件，第二电机电控组件以及第一开关，所述第一电机电控组件通过所述第一开关与所述第二电机电控组件连接，所述第一电机电控组件还与所述充放电接口连接，所述充放电接口适于连接目标设备，所述第二电机电控组件与所述电池模块连接；In order to achieve the above-mentioned purpose, according to a first aspect of an embodiment of the present disclosure, a charge and discharge circuit is provided, the charge and discharge circuit comprising a controller, a charge and discharge interface connected to the controller, a battery module, a first motor electronic control component, a second motor electronic control component and a first switch, the first motor electronic control component is connected to the second motor electronic control component through the first switch, the first motor electronic control component is also connected to the charge and discharge interface, the charge and discharge interface is suitable for connecting to a target device, and the second motor electronic control component is connected to the battery module;

所述控制器，用于在接收到充放电请求的情况下，控制所述第一开关闭合，并根据所述充放电请求控制所述第一电机电控组件和所述第二电机电控组件与所述电池模块和所述目标设备形成的充电通路或者放电通路。The controller is used to control the first switch to close when receiving a charge and discharge request, and control the charging path or discharging path formed by the first motor electronic control component and the second motor electronic control component, the battery module and the target device according to the charge and discharge request.

可选地，所述第一电机电控组件包括一个或者多个第一桥臂变换电路，每个所述第一桥臂变换电路包括第一桥臂和第一绕组，所述第二电机电控组件包括一个或者多个第二桥臂变换电路，每个所述第二桥臂变换电路包括第二桥臂和第二绕组；Optionally, the first motor electronic control component includes one or more first bridge arm conversion circuits, each of which includes a first bridge arm and a first winding, and the second motor electronic control component includes one or more second bridge arm conversion circuits, each of which includes a second bridge arm and a second winding;

针对每个所述第一桥臂变换电路，所述第一绕组的第一端与所述第一桥臂的中点连接，所述第一绕组的第二端与所述第一开关的第一端连接，所述第一桥臂的汇流端与所述充放电接口连接；For each first bridge arm conversion circuit, the first end of the first winding is connected to the midpoint of the first bridge arm, the second end of the first winding is connected to the first end of the first switch, and the bus terminal of the first bridge arm is connected to the charge and discharge interface;

针对每个第二桥臂变换电路，所述第二绕组的第一端与所述第二桥臂的中点连接，所述第二绕组的第二端与所述第一开关的第二端连接，所述第二桥臂的汇流端连接所述电池模块。For each second bridge arm conversion circuit, the first end of the second winding is connected to the midpoint of the second bridge arm, the second end of the second winding is connected to the second end of the first switch, and the bus end of the second bridge arm is connected to the battery module.

可选地，所述控制器，用于根据所述充放电请求，从所述一个或者多个第一桥臂变换电路中确定至少一个第一目标桥臂变换电路，并从所述一个或者多个第二桥臂变换电路中确定至少一个第二目标桥臂变换电路，控制所述第一开关闭合，通过所述第一目标桥臂变换电路和所述第二目标桥臂变换电路，以及所述第一开关与所述电池模块和所述目标设备形成充电通路或者放电通路。Optionally, the controller is used to determine at least one first target bridge arm conversion circuit from the one or more first bridge arm conversion circuits and at least one second target bridge arm conversion circuit from the one or more second bridge arm conversion circuits according to the charge and discharge request, control the first switch to close, and form a charging path or a discharging path through the first target bridge arm conversion circuit and the second target bridge arm conversion circuit, and the first switch, the battery module and the target device.

可选地，所述控制器，用于在所述充放电请求为降压充电请求的情况下，在每个控制周期的第一指定时间段内控制所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通，以形成所述目标设备与所述第一目标桥臂变换电路中的第一桥臂的上桥臂、所述第一目标桥臂变换电路中的第一绕组、所述第二目标桥臂变换电路中的第二桥臂的上桥臂、所述第二目标桥臂变换电路中的第二绕组和所述电池模块之间的第一降压充电通路，以使所述目标设备对所述电池模块进行充电。Optionally, the controller is used to control the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on and the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on within the first specified time period of each control cycle when the charge and discharge request is a step-down charging request, so as to form a first step-down charging path between the target device and the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit and the battery module, so that the target device charges the battery module.

可选地，所述控制器，还用于在每个控制周期的第二指定时间段内，控制所述第一目标桥臂变换电路中的第一桥臂的上桥臂截止，所述第一目标桥臂变换电路中的第一桥臂的下桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的下桥臂截止，以形成所述电池模块与所述第一目标桥臂变换电路中的第一桥臂的下桥臂，所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中第二桥臂的上桥臂，以及所述第二目标桥臂变换电路中的第二绕组之间的第二降压充电通路，以使所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组对所述电池模块进行充电。Optionally, the controller is also used to control the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be cut off, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on, and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be cut off within the second specified time period of each control cycle, so as to form a second step-down charging path between the battery module and the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit, so that the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit charge the battery module.

可选地，所述控制器，用于在所述充放电请求为降压放电请求的情况下，在每个控制周期的第一预设时间段内控制所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通，以形成所述目标设备与所述第一目标桥臂变换电路中的第一桥臂的上桥臂、所述第一目标桥臂变换电路中的第一绕组、所述第二目标桥臂变换电路中的第二桥臂的上桥臂、所述第二目标桥臂变换电路中的第二绕组和所述电池模块之间的第一降压放电通路，以使所述电池模块对所述目标设备进行放电。Optionally, the controller is used to control the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on and the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on within a first preset time period of each control cycle when the charge and discharge request is a step-down discharge request, so as to form a first step-down discharge path between the target device and the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit and the battery module, so that the battery module discharges the target device.

可选地，所述控制器，还用于在每个控制周期的第二预设时间段内，控制所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第一目标桥臂变换电路中的第一桥臂的下桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的上桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的下桥臂导通，以形成所述目标设备与所述第一目标桥臂变换电路中的第一桥臂的下桥臂，所述第一目标桥臂变换电路中的第一绕组，和所述第二目标桥臂变换电路中的第二桥臂的上桥臂，以及所述第二目标桥臂变换电路中的第二绕组之间的第二降压放电通路，以使所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组对所述目标设备进行放电。Optionally, the controller is also used to control the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned off, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned off, and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on within a second preset time period of each control cycle, so as to form a second step-down discharge path between the target device and the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit, so that the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit discharge the target device.

可选地，所述控制器，用于在所述充放电请求为升压充电请求的情况下，在每个控制周期的第一待用时间段内控制所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的下桥臂导通，以形成所述目标设备与所述第一目标桥臂变换电路中的第一桥臂的上桥臂所述第一目标桥臂变换电路中的第一绕组、所述第二目标桥臂变换电路中的第二桥臂的下桥臂和所述第二目标桥臂变换电路中的第二绕组之间的第一升压充电通路，以使所述目标设备对所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组进行充电。Optionally, the controller is used to control the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on during the first standby time period of each control cycle when the charge and discharge request is a boost charging request, so as to form a first boost charging path between the target device and the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit, so that the target device charges the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit.

可选地，所述控制器，还用于在每个控制周期的第二待用时间段内，控制所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第一目标桥臂变换电路中的第一桥臂的下桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的下桥臂截止，以形成所述目标设备与第一目标桥臂变换电路中的第一桥臂的上桥臂、第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中第二桥臂的上桥臂，所述第二目标桥臂变换电路中的第二绕组以及所述电池模块之间的第二升压充电通路，以使所述目标设备、所述第一目标桥臂变换电路中的第一绕组以及所述第二目标桥臂变换电路中的第二绕组对所述电池模块进行充电。Optionally, the controller is also used to control the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned off, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on, and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned off, so as to form a second boost charging path between the target device and the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit, and the battery module, so that the target device, the first winding in the first target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit charge the battery module.

可选地，所述控制器，用于在所述充放电请求为升压放电请求的情况下，在每个控制周期的第一设定时间段内控制所述第一目标桥臂变换电路中的第一桥臂的下桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通，以形成所述电池模块与所述第一目标桥臂变换电路中的第一桥臂的下桥臂，所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中的第二桥臂的上桥臂，以及所述第二目标桥臂变换电路中的第二绕组之间的第一升压放电通路，以使所述电池模块对所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组进行放电。Optionally, the controller is used to control the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on and the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on within a first set time period of each control cycle when the charge and discharge request is a boost discharge request, so as to form a first boost discharge path between the battery module and the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit, so that the battery module discharges the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit.

可选地，所述控制器，还用于在每个控制周期的第二设定时间段内，控制所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第一目标桥臂变换电路中的第一桥臂的下桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的下桥臂截止，以形成所述电池模块与第一目标桥臂变换电路中的第一桥臂的上桥臂，所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中的第二桥臂的上桥臂，所述第二目标桥臂变换电路中的第二绕组，以及所述目标设备之间的第二升压放电通路，以使所述电池模块、所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组对所述目标设备进行放电。Optionally, the controller is also used to control the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned off, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on, and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned off within a second set time period of each control cycle, so as to form a second boost discharge path between the battery module and the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit, and the target device, so that the battery module, the first winding in the first target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit discharge the target device.

可选地，所述充放电电路还包括第二开关，所述第二开关的一端与所述充放电接口连接，所述第二开关的另一端与所述电池模块连接，Optionally, the charge and discharge circuit further includes a second switch, one end of the second switch is connected to the charge and discharge interface, and the other end of the second switch is connected to the battery module.

所述控制器，用于获取所述电池模块的当前温度，在所述当前温度小于或等于预设的温度阈值的情况下，在每个控制周期的第一持续时间段内控制所述第一目标桥臂变换电路中的第一桥臂的下桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通，以形成所述电池模块与所述第一目标桥臂变换电路中的第一桥臂的下桥臂，所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中的第二桥臂的上桥臂以及所述第二目标桥臂变换电路中的第二绕组之间的第一自加热通路，对所述电池模块进行加热。The controller is used to obtain the current temperature of the battery module, and when the current temperature is less than or equal to a preset temperature threshold, control the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on and the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on within the first duration period of each control cycle, so as to form a first self-heating path between the battery module and the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit, so as to heat the battery module.

可选地，所述控制器，还用于在每个控制周期的第二持续时间段内，控制所述第二开关闭合，并控制所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第一目标桥臂变换电路中的第一桥臂的下桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的上桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的下桥臂导通，以通过所述第二开关形成所述电池模块与所述第一目标桥臂变换电路中的第一桥臂的上桥臂，所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中的第二桥臂的下桥臂，以及所述第二目标桥臂变换电路中的第二绕组之间的第二自加热通路，对所述电池模块进行加热。Optionally, the controller is also used to control the second switch to close during the second duration period of each control cycle, and control the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned off, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned off, and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on, so as to form a second self-heating path between the battery module and the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit through the second switch to heat the battery module.

根据本公开实施例的第二方面，提供一种电子设备，所述电子设备包括：第一方面所述的充放电电路。According to a second aspect of an embodiment of the present disclosure, an electronic device is provided, comprising: the charging and discharging circuit described in the first aspect.

根据本公开实施例的第三方面，提供一种车辆，所述车辆包括：第一方面所述的充放电电路。According to a third aspect of an embodiment of the present disclosure, a vehicle is provided, comprising: the charging and discharging circuit described in the first aspect.

上述技术方案，通过闭合所述第一开关，并根据所述充放电请求控制所述第一电机电控组件和所述第二电机电控组件与所述电池模块和所述目标设备形成充电通路或者放电通路，能够根据不同的所述目标设备充放电请求，形成与所述电池模块相适配的充电通路或放电通路，能够有效避免发生目标设备与电池模块不适配而导致的无法对电动车辆进行充电的问题。The above technical solution, by closing the first switch and controlling the first motor electronic control component and the second motor electronic control component to form a charging path or a discharging path with the battery module and the target device according to the charging and discharging request, can form a charging path or a discharging path compatible with the battery module according to different charging and discharging requests of the target device, and can effectively avoid the problem of being unable to charge the electric vehicle due to the incompatibility between the target device and the battery module.

本公开的其他特征和优点将在随后的具体实施方式部分予以详细说明。Other features and advantages of the present disclosure will be described in detail in the following detailed description.

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

附图是用来提供对本公开的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本公开，但并不构成对本公开的限制。在附图中：The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

图1是根据本公开第一实施例示出的一种充放电电路的示意图；FIG1 is a schematic diagram of a charge-discharge circuit according to a first embodiment of the present disclosure;

图2是根据本公开第二实施例示出的一种充放电电路的电路图；FIG2 is a circuit diagram of a charge-discharge circuit according to a second embodiment of the present disclosure;

图3是根据本公开第三实施例示出的另一种充放电电路的电路图；FIG3 is a circuit diagram of another charging and discharging circuit according to a third embodiment of the present disclosure;

图4是根据本公开第四实施例示出的又一种充放电电路的电路图；FIG4 is a circuit diagram of another charging and discharging circuit according to a fourth embodiment of the present disclosure;

图5是根据本公开第五实施例示出的再一种充放电电路的电路图；FIG5 is a circuit diagram of another charging and discharging circuit according to a fifth embodiment of the present disclosure;

图6是根据本公开第六实施例示出的再一种充放电电路的电路图；FIG6 is a circuit diagram of another charging and discharging circuit according to a sixth embodiment of the present disclosure;

图7是根据本公开第七实施例示出的再一种充放电电路的电路图；FIG7 is a circuit diagram of another charging and discharging circuit according to a seventh embodiment of the present disclosure;

图8是根据本公开第八实施例示出的再一种充放电电路的电路图；FIG8 is a circuit diagram of another charging and discharging circuit according to an eighth embodiment of the present disclosure;

图9是根据本公开第九实施例示出的再一种充放电电路的电路图；FIG9 is a circuit diagram of another charging and discharging circuit according to a ninth embodiment of the present disclosure;

图10是本公开第十实施例示出的一种车辆的框图。FIG. 10 is a block diagram of a vehicle according to a tenth embodiment of the present disclosure.

具体实施方式DETAILED DESCRIPTION

以下结合附图对本公开的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本公开，并不用于限制本公开。The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

在详细介绍本公开的具体实施方式之前，首先对本公开的应用场景进行以下说明，本公开可以应用于通过充电桩对不同类型电动车辆的动力电池进行充电的场景，以及通过电动车辆的动力电池对其他电动车辆进行放电的场景。目前，大部分的充电设施是固定电压输出范围的充电桩，然而，不同类型电动车辆的动力电池的充电参数（例如充电电压、充电电流、功率等）不同。在通过固定电压输出范围的充电桩对不同类型电动车辆的动力电池进行充电时，可能会存在电压不匹配以及充电效率低的问题。当电动车辆的动力电池的充电电压与充电桩固定的输出电压不适配时，充电桩无法直接对电动车辆的动力电池进行充电。此时，通常需要充电转换装置，连接充电桩和电动车辆，将充电桩的输出电压转换为适合电动车辆的充电电压，确保安全和高效的充电过程。但是，充电转换装置，存在体积较大且重量较重的问题，不方便携带；在进行电压转换的过程中，充电转换装置也会产生一定的能量损耗，使得部分电能转化为热能损失掉，降低了整体充电效率。另外，当面临一些突发状况时，例如电动车辆在抵达固定的充电桩之前电量耗尽；或者在偏远地区，充电站的分布不够密集，驾驶员难以找到充电站。在面临这些突发状况时，车辆充电的可靠性和灵活性较低，使得用户的体验感较差。Before introducing the specific embodiments of the present disclosure in detail, the application scenarios of the present disclosure are first described as follows. The present disclosure can be applied to the scenario of charging the power batteries of different types of electric vehicles through charging piles, and the scenario of discharging other electric vehicles through the power batteries of electric vehicles. At present, most charging facilities are charging piles with a fixed voltage output range. However, the charging parameters (such as charging voltage, charging current, power, etc.) of the power batteries of different types of electric vehicles are different. When charging the power batteries of different types of electric vehicles through charging piles with a fixed voltage output range, there may be problems of voltage mismatch and low charging efficiency. When the charging voltage of the power battery of the electric vehicle is not compatible with the fixed output voltage of the charging pile, the charging pile cannot directly charge the power battery of the electric vehicle. At this time, a charging conversion device is usually required to connect the charging pile and the electric vehicle, convert the output voltage of the charging pile into a charging voltage suitable for the electric vehicle, and ensure a safe and efficient charging process. However, the charging conversion device has the problems of large size and heavy weight, which is not convenient to carry; in the process of voltage conversion, the charging conversion device will also produce a certain amount of energy loss, so that part of the electric energy is converted into heat energy and lost, reducing the overall charging efficiency. In addition, when faced with some emergencies, such as the electric vehicle running out of power before reaching a fixed charging station, or in remote areas, the distribution of charging stations is not dense enough and it is difficult for drivers to find charging stations. In the face of these emergencies, the reliability and flexibility of vehicle charging are low, resulting in a poor user experience.

为了解决上述技术问题，本公开提供一种充放电电路及车辆，所述充放电电路包括控制器，以及与所述控制器连接的充放电接口，电池模块，第一电机电控组件，第二电机电控组件以及第一开关，所述第一电机电控组件通过所述第一开关与所述第二电机电控组件连接，所述第一电机电控组件还与所述充放电接口连接，所述充放电接口适于连接目标设备，所述第二电机电控组件与所述电池模块连接；所述控制器，用于在接收到充放电请求的情况下，控制所述第一开关闭合，并根据所述充放电请求控制所述第一电机电控组件和所述第二电机电控组件与所述电池模块和所述目标设备形成的充电通路或者放电通路。这样，通过闭合所述第一开关，并根据所述充放电请求控制所述第一电机电控组件和所述第二电机电控组件与所述电池模块和所述目标设备形成充电通路或者放电通路，能够根据不同的所述目标设备充放电请求，形成与所述目标设备和所述电池模块相适配的充电通路或放电通路，能够有效避免发生目标设备与电池模块不适配而导致的无法对车辆进行充电的问题。In order to solve the above technical problems, the present disclosure provides a charging and discharging circuit and a vehicle, wherein the charging and discharging circuit includes a controller, a charging and discharging interface connected to the controller, a battery module, a first motor electronic control component, a second motor electronic control component and a first switch, wherein the first motor electronic control component is connected to the second motor electronic control component through the first switch, the first motor electronic control component is also connected to the charging and discharging interface, the charging and discharging interface is suitable for connecting a target device, and the second motor electronic control component is connected to the battery module; the controller is used to control the first switch to close when a charging and discharging request is received, and control the first motor electronic control component and the second motor electronic control component to form a charging path or a discharging path with the battery module and the target device according to the charging and discharging request. In this way, by closing the first switch and controlling the first motor electronic control component and the second motor electronic control component to form a charging path or a discharging path with the battery module and the target device according to the charging and discharging request, a charging path or a discharging path compatible with the target device and the battery module can be formed according to different charging and discharging requests of the target device, and the problem of being unable to charge the vehicle due to the incompatibility between the target device and the battery module can be effectively avoided.

图1是根据本公开第一实施例示出的一种充放电电路的示意图，如图1所示，所述充放电电路100包括：控制器101，以及与所述控制器101连接的第一电机电控组件102，第二电机电控组件103，电池模块104，充放电接口105，以及第一开关106，所述第一电机电控组件102通过所述第一开关106与所述第二电机电控组件103连接，所述第一电机电控组件102还与所述充放电接口连接，所述充放电接口用于连接目标设备107，所述第二电机电控组件103与所述电池模块104连接；FIG1 is a schematic diagram of a charge and discharge circuit according to a first embodiment of the present disclosure. As shown in FIG1 , the charge and discharge circuit 100 includes: a controller 101, and a first motor electronic control component 102 connected to the controller 101, a second motor electronic control component 103, a battery module 104, a charge and discharge interface 105, and a first switch 106. The first motor electronic control component 102 is connected to the second motor electronic control component 103 through the first switch 106. The first motor electronic control component 102 is also connected to the charge and discharge interface, and the charge and discharge interface is used to connect to a target device 107. The second motor electronic control component 103 is connected to the battery module 104.

所述控制器101，用于在接收到充放电请求的情况下，控制所述第一开关106闭合，并根据所述充放电请求控制所述第一电机电控组件102和所述第二电机电控组件103与所述电池模块104和所述目标设备107形成的充电通路或者放电通路。The controller 101 is used to control the first switch 106 to close when receiving a charge and discharge request, and control the charging path or discharging path formed by the first motor electronic control component 102 and the second motor electronic control component 103, the battery module 104 and the target device 107 according to the charge and discharge request.

其中，所述目标设备107可以是充电桩或其他具有充电功能的充电装置，也可以是需要充电的车辆。在所述目标设备107是充电桩的情况下，由所述控制器101向所述目标设备107发送所述充放电请求，所述充放电请求中包括充电指令和充电参数；在所述目标设备107是需要充电的车辆的情况下，由所述目标设备107向所述控制器101发送所述充放电请求，所述充放电请求中包括放电指令和放电参数。该充电参数可以是充电电压、充电电流和充电功率中的一个或者多个，该放电参数可以是放电电压、放电电流和放电功率中的一个或者多个。在接收到充电指令的情况下，根据所述电池模块104的充电参数和所述目标设备107的输出电压、输出电流以及输出功率，确定充电放请求。在接收到放电指令的情况下，根据所述电池模块104的放电参数和所述目标设备107的输入电压、输入电流以及输入功率，确定充放电请求。Wherein, the target device 107 may be a charging pile or other charging device with charging function, or a vehicle that needs to be charged. When the target device 107 is a charging pile, the controller 101 sends the charge and discharge request to the target device 107, and the charge and discharge request includes a charging instruction and a charging parameter; when the target device 107 is a vehicle that needs to be charged, the target device 107 sends the charge and discharge request to the controller 101, and the charge and discharge request includes a discharge instruction and a discharge parameter. The charging parameter may be one or more of the charging voltage, the charging current and the charging power, and the discharge parameter may be one or more of the discharge voltage, the discharge current and the discharge power. When a charging instruction is received, the charge and discharge request is determined according to the charging parameters of the battery module 104 and the output voltage, output current and output power of the target device 107. When a discharge instruction is received, the charge and discharge request is determined according to the discharge parameters of the battery module 104 and the input voltage, input current and input power of the target device 107.

示例地，在接收到充电指令的情况下，若确定所述目标设备107的输出电压大于或等于所述电池模块104的充电电压，确定所述充放电请求为降压充电请求；若确定所述目标设备107的输出电压小于所述电池模块104的充电电压，确定所述充放电请求为升压充电请求。在接收到放电指令的情况下，若确定所述目标设备107的输入电压大于或等于所述电池模块104的放电电压，确定所述充放电请求为升压放电请求；若确定所述目标设备107的输入电压小于所述电池模块104的放电电压，确定所述充放电请求为降压放电请求。For example, when a charging instruction is received, if it is determined that the output voltage of the target device 107 is greater than or equal to the charging voltage of the battery module 104, the charging and discharging request is determined to be a step-down charging request; if it is determined that the output voltage of the target device 107 is less than the charging voltage of the battery module 104, the charging and discharging request is determined to be a step-up charging request. When a discharging instruction is received, if it is determined that the input voltage of the target device 107 is greater than or equal to the discharging voltage of the battery module 104, the charging and discharging request is determined to be a step-up discharging request; if it is determined that the input voltage of the target device 107 is less than the discharging voltage of the battery module 104, the charging and discharging request is determined to be a step-down discharging request.

在确定所述充放电请求为降压充电请求的情况下，控制所述第一开关106闭合，并控制所述第一电机电控组件102和所述第二电机电控组件103与所述电池模块104和所述目标设备107形成降压充电通路。在确定所述充放电请求为升压充电请求的情况下，控制所述第一开关106闭合，并控制所述第一电机电控组件102和所述第二电机电控组件103与所述电池模块104和所述目标设备107形成升压充电通路。在确定所述充放电请求为升压放电请求的情况下，控制所述第一开关106闭合，并控制所述第一电机电控组件102和所述第二电机电控组件103与所述电池模块104和所述目标设备107形成升压放电通路。在确定所述充放电请求为降压放电请求的情况下，控制所述第一开关106闭合，并控制所述第一电机电控组件102和所述第二电机电控组件103与所述电池模块104和所述目标设备107形成降压放电通路。In the case where it is determined that the charge and discharge request is a step-down charge request, the first switch 106 is controlled to be closed, and the first motor electronic control component 102 and the second motor electronic control component 103 are controlled to form a step-down charge path with the battery module 104 and the target device 107. In the case where it is determined that the charge and discharge request is a step-up charge request, the first switch 106 is controlled to be closed, and the first motor electronic control component 102 and the second motor electronic control component 103 are controlled to form a step-up charge path with the battery module 104 and the target device 107. In the case where it is determined that the charge and discharge request is a step-up discharge request, the first switch 106 is controlled to be closed, and the first motor electronic control component 102 and the second motor electronic control component 103 are controlled to form a step-down discharge path with the battery module 104 and the target device 107. In the case where it is determined that the charge and discharge request is a step-down discharge request, the first switch 106 is controlled to be closed, and the first motor electronic control component 102 and the second motor electronic control component 103 are controlled to form a step-down discharge path with the battery module 104 and the target device 107.

以上技术方案，根据所述充放电请求控制所述第一电机电控组件和所述第二电机电控组件与所述电池模块和所述目标设备形成充电通路或者放电通路，能够根据不同的所述目标设备充放电请求，形成与所述电池模块相适配的充电通路或放电通路，能够有效避免发生目标设备与电池模块不适配的问题，能够有效提升车辆充电的灵活性和可靠性，从而有利于提升用户的体验感和满意度。The above technical scheme controls the first motor electronic control component and the second motor electronic control component to form a charging path or a discharging path with the battery module and the target device according to the charging and discharging request. It can form a charging path or a discharging path compatible with the battery module according to different charging and discharging requests of the target device, and can effectively avoid the problem of incompatibility between the target device and the battery module, and can effectively improve the flexibility and reliability of vehicle charging, thereby helping to improve user experience and satisfaction.

图2是根据本公开第二实施例示出的一种充放电电路的电路图，如图2所示，所述第一电机电控组件102包括一个或者多个第一桥臂变换电路，每个所述第一桥臂变换电路包括第一桥臂A1和第一绕组A2，所述第二电机电控组件103包括一个或者多个第二桥臂变换电路，每个所述第二桥臂变换电路包括第二桥臂B1和第二绕组B2；FIG2 is a circuit diagram of a charging and discharging circuit according to a second embodiment of the present disclosure. As shown in FIG2 , the first motor electronic control component 102 includes one or more first bridge arm conversion circuits, each of which includes a first bridge arm A1 and a first winding A2, and the second motor electronic control component 103 includes one or more second bridge arm conversion circuits, each of which includes a second bridge arm B1 and a second winding B2;

针对每个所述第一桥臂变换电路，所述第一绕组A2的第一端与所述第一桥臂A1的中点连接，所述第一绕组A2的第二端与所述第一开关106的第一端连接，所述第一桥臂A1的汇流端与所述充放电接口105连接；For each of the first bridge arm conversion circuits, the first end of the first winding A2 is connected to the midpoint of the first bridge arm A1, the second end of the first winding A2 is connected to the first end of the first switch 106, and the bus end of the first bridge arm A1 is connected to the charge and discharge interface 105;

针对每个第二桥臂变换电路，所述第二绕组B2的第一端与所述第二桥臂B1的中点连接，所述第二绕组B2的第二端与所述第一开关106的第二端连接，所述第二桥臂B1的汇流端连接所述电池模块104。For each second bridge arm conversion circuit, the first end of the second winding B2 is connected to the midpoint of the second bridge arm B1 , the second end of the second winding B2 is connected to the second end of the first switch 106 , and the bus end of the second bridge arm B1 is connected to the battery module 104 .

其中，第一桥臂变换电路中的第一绕组可以包括电感或电容器等可以用于暂时存储电能的组件，也可以包括其他的储能电路，但第一桥臂变换电路中的第一绕组并不限于上述的用于暂时存储电能的组件及储能电路。第二桥臂变换电路中的第二绕组可以包括电感或电容器等可以用于暂时存储电能的组件，也可以包括其他的储能电路，但第二桥臂变换电路中的第二绕组并不限于上述的用于暂时存储电能的组件及储能电路。The first winding in the first bridge arm conversion circuit may include components such as an inductor or a capacitor that can be used to temporarily store electrical energy, and may also include other energy storage circuits, but the first winding in the first bridge arm conversion circuit is not limited to the above-mentioned components and energy storage circuits for temporarily storing electrical energy. The second winding in the second bridge arm conversion circuit may include components such as an inductor or a capacitor that can be used to temporarily store electrical energy, and may also include other energy storage circuits, but the second winding in the second bridge arm conversion circuit is not limited to the above-mentioned components and energy storage circuits for temporarily storing electrical energy.

所述第一电机电控组件102可以是单相电机、三相电机，也可以是其他类型的电机。当所述第一电机电控组件102是单相电机时，所述第一电机电控组件102包括一个所述第一桥臂变换电路。当所述第一电机电控组件102是三相电机时，所述第一电机电控组件102包括三个所述第一桥臂变换电路；所述第二电机电控组件103可以是单相电机、三相电机，也可以是其他类型的电机。当所述第二电机电控组件103是单相电机时，所述第二电机电控组件103包括一个所述第二桥臂变换电路。当所述第二电机电控组件103是三相电机时，所述第二电机电控组件103包括三个所述第二桥臂变换电路。图中以所述第一电机电控组件102和所述第二电机电控组件103是三相电机为例进行说明。The first motor electronic control component 102 can be a single-phase motor, a three-phase motor, or other types of motors. When the first motor electronic control component 102 is a single-phase motor, the first motor electronic control component 102 includes one first bridge arm conversion circuit. When the first motor electronic control component 102 is a three-phase motor, the first motor electronic control component 102 includes three first bridge arm conversion circuits; the second motor electronic control component 103 can be a single-phase motor, a three-phase motor, or other types of motors. When the second motor electronic control component 103 is a single-phase motor, the second motor electronic control component 103 includes one second bridge arm conversion circuit. When the second motor electronic control component 103 is a three-phase motor, the second motor electronic control component 103 includes three second bridge arm conversion circuits. The figure takes the first motor electronic control component 102 and the second motor electronic control component 103 as three-phase motors as an example for explanation.

以上技术方案，通过所述第一电机电控组件的所述第一桥臂变换电路和所述第二电机电控组件的所述第二桥臂变换电路，形成所述第一电机电控组件和所述第二电机电控组件与所述电池模块和所述目标设备形成充放电通路，为后续对所述电池模块进行充电或放电提供通路依据。The above technical scheme forms a charging and discharging path between the first motor electronic control component and the second motor electronic control component and the battery module and the target device through the first bridge arm conversion circuit of the first motor electronic control component and the second bridge arm conversion circuit of the second motor electronic control component, thereby providing a path basis for the subsequent charging or discharging of the battery module.

可选地，所述控制器101，用于根据所述充放电请求，从所述一个或者多个第一桥臂变换电路中确定至少一个第一目标桥臂变换电路，并从所述一个或者多个第二桥臂变换电路中确定至少一个第二目标桥臂变换电路，控制所述第一开关闭合，通过所述第一目标桥臂变换电路，以及所述第一开关和所述第二目标桥臂变换电路与所述电池模块104和所述目标设备107形成充电通路或者放电通路。Optionally, the controller 101 is used to determine at least one first target bridge arm conversion circuit from the one or more first bridge arm conversion circuits and at least one second target bridge arm conversion circuit from the one or more second bridge arm conversion circuits according to the charge and discharge request, control the first switch to close, and form a charging path or a discharging path with the battery module 104 and the target device 107 through the first target bridge arm conversion circuit, the first switch and the second target bridge arm conversion circuit.

其中，图2中的灰色宽箭头代表电流流向。在所述第一电机电控组件102是单相电机的情况下，直接将单相电机中的第一桥臂变换电路作为第一目标桥臂变换电路。在所述第一电机电控组件102为三相电机的情况下，可以将其中一个第一桥臂变换电路作为第一目标桥臂变换电路；也可以将其中两个第一桥臂变换电路作为第一目标桥臂变换电路；还可以将三个第一桥臂变换电路全部作为第一目标桥臂变换电路。在所述第二电机电控组件103为单相电机的情况下，可以将单相电机中的第二桥臂变换电路作为第二目标桥臂变换电路。在所述第二电机电控组件103为三相电机的情况下，可以将其中一个第二桥臂变换电路作为第二目标桥臂变换电路；也可以将其中两个第二桥臂变换电路作为第二目标桥臂变换电路；还可以将三个第二桥臂变换电路全部作为第二目标桥臂变换电路。Wherein, the gray broad arrow in FIG2 represents the current flow direction. When the first motor electronic control component 102 is a single-phase motor, the first bridge arm conversion circuit in the single-phase motor is directly used as the first target bridge arm conversion circuit. When the first motor electronic control component 102 is a three-phase motor, one of the first bridge arm conversion circuits can be used as the first target bridge arm conversion circuit; two of the first bridge arm conversion circuits can be used as the first target bridge arm conversion circuit; or all three first bridge arm conversion circuits can be used as the first target bridge arm conversion circuit. When the second motor electronic control component 103 is a single-phase motor, the second bridge arm conversion circuit in the single-phase motor can be used as the second target bridge arm conversion circuit. When the second motor electronic control component 103 is a three-phase motor, one of the second bridge arm conversion circuits can be used as the second target bridge arm conversion circuit; two of the second bridge arm conversion circuits can be used as the second target bridge arm conversion circuit; or all three second bridge arm conversion circuits can be used as the second target bridge arm conversion circuit.

以上技术方案，通过从一个或多个第一桥臂变换电路中确定第一目标桥臂变换电路，从一个或多个第二桥臂变换电路中确定第二目标桥臂变换电路，能够通过所述第一目标桥臂变换电路和所述第二目标桥臂变换电路与所述电池模块和所述目标设备形成多种形式的充电通路或者放电通路，能够提高车辆充放电的灵活性和可靠性。The above technical scheme, by determining the first target bridge arm conversion circuit from one or more first bridge arm conversion circuits, and determining the second target bridge arm conversion circuit from one or more second bridge arm conversion circuits, can form various forms of charging paths or discharging paths with the battery module and the target device through the first target bridge arm conversion circuit and the second target bridge arm conversion circuit, thereby improving the flexibility and reliability of vehicle charging and discharging.

可选地，如图2所示，所述控制器101，用于在所述充放电请求为降压充电请求的情况下，在每个控制周期的第一指定时间段内控制所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通，以形成所述目标设备107与所述第一目标桥臂变换电路中的第一桥臂的上桥臂、所述第一目标桥臂变换电路中的第一绕组、所述第二目标桥臂变换电路中的第二桥臂的上桥臂、所述第二目标桥臂变换电路中的第二绕组和所述电池模块104之间的第一降压充电通路，以使所述目标设备107对所述电池模块104进行充电。Optionally, as shown in Figure 2, the controller 101 is used to control the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on and the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on within the first specified time period of each control cycle when the charge and discharge request is a step-down charging request, so as to form a first step-down charging path between the target device 107 and the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit and the battery module 104, so that the target device 107 charges the battery module 104.

其中，所述目标设备107可以是充电桩或其他具有充电功能的充电装置。在接收到充电指令的情况下，若确定所述目标设备107的输出电压大于或等于所述电池模块104的充电电压，确定所述充放电请求为降压充电请求。此时，所述第一开关106闭合，所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通。所述目标设备107的正极输出的电流，依次经过所述第一目标桥臂变换电路中的第一桥臂的上桥臂，所述第一目标桥臂变换电路中的第一绕组，所述第一开关106，所述第二目标桥臂变换电路中的第二绕组，所述第二目标桥臂变换电路中的第二桥臂的上桥臂，所述电池模块104的正极以及所述电池模块104的负极，回到所述目标设备107的负极端。Wherein, the target device 107 may be a charging pile or other charging device with a charging function. In the case of receiving a charging instruction, if it is determined that the output voltage of the target device 107 is greater than or equal to the charging voltage of the battery module 104, it is determined that the charge and discharge request is a step-down charging request. At this time, the first switch 106 is closed, the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit is turned on, and the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit is turned on. The current output by the positive electrode of the target device 107 passes through the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the first switch 106, the second winding in the second target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, the positive electrode of the battery module 104 and the negative electrode of the battery module 104, and returns to the negative terminal of the target device 107.

需要说明的是，在所述充放电请求为降压充电请求的情况下，在每个控制周期的第一指定时间段内，所述目标设备107给所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中的第二绕组，以及所述电池模块104进行充电。所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组通过分走所述目标设备107的一部分电压，使得所述电池模块104接收到所述目标设备107的另一部分电压，从而实现所述目标设备107对所述电池模块104进行降压充电。It should be noted that, in the case where the charge and discharge request is a step-down charging request, within the first specified time period of each control cycle, the target device 107 charges the first winding in the first target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit, and the battery module 104. The first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit divide a portion of the voltage of the target device 107 so that the battery module 104 receives another portion of the voltage of the target device 107, thereby realizing the step-down charging of the battery module 104 by the target device 107.

另外，还需要说明的是，当所述第一电机电控组件102包括一个第一桥臂变换电路时，可以将该第一桥臂变换电路作为所述第一目标桥臂变换电路；当所述第一电机电控组件102包括多个第一桥臂变换电路时，可以从多个所述第一桥臂变换电路中挑选数量少于原有所述第一桥臂变换电路总数的所述第一桥臂变换电路作为所述第一目标桥臂变换电路。并且，在每个控制周期，从一个或者多个第一桥臂变化电路中循环选择并确定第一目标桥臂变换电路。示例地，当所述第一电机电控组件102是三相电机时，三相电机包括U，W，V三个第一桥臂变换电路，从一个或者多个第一桥臂变化电路中确定一个第一目标桥臂变换电路时，在第一个控制周期，可以选择U作为第一目标桥臂变换电路，在第二个控制周期，可以选择W作为第一目标桥臂变换电路，在第三个控制周期，可以选择V作为第一目标桥臂变换电路，在第四个控制周期，可以选择U作为第一目标桥臂变换电路，依次循环确定所述第一目标桥臂变换电路。当所述第一电机电控组件102是三相电机时，三相电机包括U，W，V三个第一桥臂变换电路，从多个所述第一桥臂变换电路中挑选数量少于原有所述第一桥臂变换电路总数的所述第一桥臂变换电路作为所述第一目标桥臂变换电路时，在第一个控制周期，可以选择U和W作为第一目标桥臂变换电路，在第二个控制周期，可以选择W和V作为第一目标桥臂变换电路，在第三个控制周期，可以选择V和U作为第一目标桥臂变换电路，在第四个控制周期，可以选择U和W作为第一目标桥臂变换电路，依次循环确定所述第一目标桥臂变换电路。确定第二目标桥臂变换电路的方式与上述确定第一目标桥臂变换电路的方式类似，在此不再赘述。通过从一个或者多个第一桥臂变化电路中交替确定第一目标桥臂变换电路，或者从一个或者多个第二桥臂变化电路中交替确定第二目标桥臂变换电路，能够避免单个桥臂过热，提高整体散热效率，延长第一桥臂变换电路和第二桥臂变换电路的使用寿命。In addition, it should be noted that when the first motor electronic control component 102 includes a first bridge arm conversion circuit, the first bridge arm conversion circuit can be used as the first target bridge arm conversion circuit; when the first motor electronic control component 102 includes multiple first bridge arm conversion circuits, the first bridge arm conversion circuits less than the total number of the original first bridge arm conversion circuits can be selected from the multiple first bridge arm conversion circuits as the first target bridge arm conversion circuit. And, in each control cycle, the first target bridge arm conversion circuit is cyclically selected and determined from one or more first bridge arm change circuits. For example, when the first motor electronic control component 102 is a three-phase motor, the three-phase motor includes three first bridge arm conversion circuits U, W, and V. When a first target bridge arm conversion circuit is determined from one or more first bridge arm change circuits, in the first control cycle, U can be selected as the first target bridge arm conversion circuit, in the second control cycle, W can be selected as the first target bridge arm conversion circuit, in the third control cycle, V can be selected as the first target bridge arm conversion circuit, and in the fourth control cycle, U can be selected as the first target bridge arm conversion circuit, and the first target bridge arm conversion circuit is determined cyclically in sequence. When the first motor electronic control component 102 is a three-phase motor, the three-phase motor includes three first bridge arm conversion circuits of U, W, and V. When selecting the first bridge arm conversion circuits less than the total number of the original first bridge arm conversion circuits from the multiple first bridge arm conversion circuits as the first target bridge arm conversion circuit, in the first control cycle, U and W can be selected as the first target bridge arm conversion circuit, in the second control cycle, W and V can be selected as the first target bridge arm conversion circuit, in the third control cycle, V and U can be selected as the first target bridge arm conversion circuit, and in the fourth control cycle, U and W can be selected as the first target bridge arm conversion circuit, and the first target bridge arm conversion circuit is determined in turn in a cycle. The method for determining the second target bridge arm conversion circuit is similar to the method for determining the first target bridge arm conversion circuit described above, and will not be repeated here. By alternately determining the first target bridge arm conversion circuit from one or more first bridge arm change circuits, or alternately determining the second target bridge arm conversion circuit from one or more second bridge arm change circuits, it is possible to avoid overheating of a single bridge arm, improve the overall heat dissipation efficiency, and extend the service life of the first bridge arm conversion circuit and the second bridge arm conversion circuit.

需要注意的是，所述目标设备107对所述电池模块104进行降压充电时，可以通过调节所述第一目标桥臂变换电路和第二目标桥臂变换电路，实现所述目标设备107对所述电池模块104输出的电压可控可调。It should be noted that when the target device 107 performs voltage reduction charging on the battery module 104 , the voltage output by the target device 107 to the battery module 104 can be controlled and adjusted by adjusting the first target bridge arm conversion circuit and the second target bridge arm conversion circuit.

示例地，所述第一电机电控组件102包括3个第一桥臂变换电路，所述第二电机电控组件103包括3个第二桥臂变换电路，每个第一桥臂变换电路可以维持10V的电压降，每个第二桥臂变换电路可以维持10V的电压降。所述目标设备107输出的电压为100V，所述电池模块104可以接收的充电电压范围为40-60V，此时，所述目标设备107需要对所述电池模块104进行降压充电。通过从3个第一桥臂变换电路挑选2个第一桥臂变换电路作为第一目标桥臂变换电路，从3个第二桥臂变换电路挑选2个第二桥臂变换电路作为第二目标桥臂变换电路。此时，第一目标桥臂变换电路和第二目标桥臂变换电路能够分走所述目标设备107的40V电压，所述电池模块104可以接收到所述目标设备107输出电压为60V，满足所述电池模块104的充电电压范围，从而实现所述目标设备107对所述电池模块104进行降压充电。For example, the first motor electronic control component 102 includes three first bridge arm conversion circuits, and the second motor electronic control component 103 includes three second bridge arm conversion circuits. Each first bridge arm conversion circuit can maintain a voltage drop of 10V, and each second bridge arm conversion circuit can maintain a voltage drop of 10V. The voltage output by the target device 107 is 100V, and the charging voltage range that the battery module 104 can receive is 40-60V. At this time, the target device 107 needs to step down and charge the battery module 104. Two first bridge arm conversion circuits are selected from the three first bridge arm conversion circuits as the first target bridge arm conversion circuits, and two second bridge arm conversion circuits are selected from the three second bridge arm conversion circuits as the second target bridge arm conversion circuits. At this time, the first target bridge arm conversion circuit and the second target bridge arm conversion circuit can divide the 40V voltage of the target device 107, and the battery module 104 can receive the output voltage of the target device 107 as 60V, which meets the charging voltage range of the battery module 104, thereby enabling the target device 107 to step down and charge the battery module 104.

同样，也可以将3个第一桥臂变换电路全部作为第一目标桥臂变换电路，再从3个第二桥臂变换电路挑选2个第二桥臂变换电路作为第二目标桥臂变换电路。此时，第一目标桥臂变换电路和第二目标桥臂变换电路能够分走所述目标设备107的50V电压，所述电池模块104可以接收到所述目标设备107输出电压为50V，满足所述电池模块104的充电电压范围，从而实现所述目标设备107对所述电池模块104进行降压充电。Similarly, all three first bridge arm conversion circuits can be used as the first target bridge arm conversion circuit, and two second bridge arm conversion circuits can be selected from the three second bridge arm conversion circuits as the second target bridge arm conversion circuit. At this time, the first target bridge arm conversion circuit and the second target bridge arm conversion circuit can divide the 50V voltage of the target device 107, and the battery module 104 can receive the output voltage of the target device 107 as 50V, which meets the charging voltage range of the battery module 104, so that the target device 107 can reduce the voltage of the battery module 104.

以上技术方案，通过所述目标设备与所述第一目标桥臂变换电路和所述第二目标桥臂变换电路以及所述电池模块，形成第一降压充电通路，以使所述目标设备对所述电池模块进行降压充电，能够在所述目标设备输出电压大于所述电池模块的充电电压的情况下，无需充电转换装置对所述电池模块进行降压充电，从而能够有效提高用户的体验感和满意度。The above technical scheme forms a first step-down charging path through the target device, the first target bridge arm conversion circuit, the second target bridge arm conversion circuit and the battery module, so that the target device can step down and charge the battery module. When the output voltage of the target device is greater than the charging voltage of the battery module, there is no need for a charging conversion device to step down and charge the battery module, thereby effectively improving the user experience and satisfaction.

图3是根据本公开第三实施例示出的另一种充放电电路的电路图，如图3所示，所述控制器101，还用于在每个控制周期的第二指定时间段内，控制所述第一目标桥臂变换电路中的第一桥臂的上桥臂截止，所述第一目标桥臂变换电路中的第一桥臂的下桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的下桥臂截止，以形成所述电池模块104与所述第一目标桥臂变换电路中的第一桥臂的下桥臂，所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中第二桥臂的上桥臂，以及所述第二目标桥臂变换电路中的第二绕组之间的第二降压充电通路，以使所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组对所述电池模块104进行充电。Figure 3 is a circuit diagram of another charging and discharging circuit according to the third embodiment of the present disclosure. As shown in Figure 3, the controller 101 is also used to control the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be cut off, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on, and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be cut off within the second specified time period of each control cycle, so as to form a second step-down charging path between the battery module 104 and the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit, so that the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit charge the battery module 104.

其中，图3中的灰色宽箭头代表电流流向。所述控制周期可以只包括第一指定时间段，也可以包括第一指定时间段和第二指定时间段。当所述电池模块104在第一指定时间段的当前电量大于或等于所述电池模块104的电量阈值的情况下，所述控制周期可以只包括第一指定时间段。所述目标设备107可以是充电桩或其他具有充电功能的充电装置。在接收到充电指令的情况下，若确定所述目标设备107的输出电压大于或等于所述电池模块104的充电电压，确定所述充放电请求为降压充电请求。此时，所述第一开关106闭合，所述第一目标桥臂变换电路中的第一桥臂的上桥臂截止，所述第一目标桥臂变换电路中的第一桥臂的下桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的下桥臂截止。在第一指定时间段，所述目标设备107对所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中的第二绕组以及电池模块104进行充电，在第二指定时间段，所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组将目标设备107提供的电能输出给所述电池模块104。在第二指定时间段，所述第一目标桥臂变换电路中的第一绕组正极输出的电流，依次经过所述第一开关106，所述第二目标桥臂变换电路中的第二绕组，所述第二目标桥臂变换电路中的第二桥臂的上桥臂，所述电池模块104的正极，所述电池模块104的负极，所述第一目标桥臂变换电路中的第一桥臂的下桥臂，回到所述第一目标桥臂变换电路中的第一绕组的负极端。Among them, the gray broad arrow in FIG3 represents the current flow direction. The control cycle may include only the first specified time period, or may include the first specified time period and the second specified time period. When the current power of the battery module 104 in the first specified time period is greater than or equal to the power threshold of the battery module 104, the control cycle may include only the first specified time period. The target device 107 may be a charging pile or other charging device with a charging function. In the case of receiving a charging instruction, if it is determined that the output voltage of the target device 107 is greater than or equal to the charging voltage of the battery module 104, it is determined that the charge and discharge request is a step-down charging request. At this time, the first switch 106 is closed, the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit is turned off, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit is turned on, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit is turned on, and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit is turned off. In the first specified time period, the target device 107 charges the first winding in the first target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit, and the battery module 104. In the second specified time period, the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit output the electric energy provided by the target device 107 to the battery module 104. In the second specified time period, the current output from the positive electrode of the first winding in the first target bridge arm conversion circuit passes through the first switch 106, the second winding in the second target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, the positive electrode of the battery module 104, the negative electrode of the battery module 104, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit, and returns to the negative terminal of the first winding in the first target bridge arm conversion circuit.

需要说明的是，在所述充放电请求为降压充电请求的情况下，在每个控制周期的第一指定时间段内，所述目标设备107给所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中的第二绕组，以及所述电池模块104进行充电。在每个控制周期的第二指定时间段内，所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组将第一指定时间段内接收到的所述目标设备107的电能输入到所述电池模块104，对所述电池模块104进行降压充电。It should be noted that, in the case where the charge and discharge request is a step-down charging request, in the first specified time period of each control cycle, the target device 107 charges the first winding in the first target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit, and the battery module 104. In the second specified time period of each control cycle, the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit input the electric energy of the target device 107 received in the first specified time period into the battery module 104, and step-down charging is performed on the battery module 104.

以上技术方案，通过所述第一目标桥臂变换电路和所述第二目标桥臂变换电路以及所述电池模块，形成第二降压充电通路，以使所述第一目标桥臂变换电路和所述第二目标桥臂变换电路对所述电池模块进行降压充电，能够在所述目标设备输出电压大于所述电池模块的充电电压的情况下，无需充电转换装置通过所述第一目标桥臂变换电路和所述第二目标桥臂变换电路对所述电池模块进行降压充电，从而能够有效提高用户的体验感和满意度。The above technical scheme forms a second step-down charging path through the first target bridge arm conversion circuit, the second target bridge arm conversion circuit and the battery module, so that the first target bridge arm conversion circuit and the second target bridge arm conversion circuit step-down charge the battery module. When the output voltage of the target device is greater than the charging voltage of the battery module, there is no need for a charging conversion device to step-down charge the battery module through the first target bridge arm conversion circuit and the second target bridge arm conversion circuit, thereby effectively improving the user experience and satisfaction.

图4是根据本公开第四实施例示出的又一种充放电电路的电路图，如图4所示，所述控制器101，用于在所述充放电请求为降压放电请求的情况下，在每个控制周期的第一预设时间段内控制所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通，以形成所述目标设备107与所述第一目标桥臂变换电路中的第一桥臂的上桥臂、所述第一目标桥臂变换电路中的第一绕组、所述第二目标桥臂变换电路中的第二桥臂的上桥臂、所述第二目标桥臂变换电路中的第二绕组和所述电池模块104之间的第一降压放电通路，以使所述电池模块104对所述目标设备107进行放电。Figure 4 is a circuit diagram of another charging and discharging circuit shown in accordance with the fourth embodiment of the present disclosure. As shown in Figure 4, the controller 101 is used to control the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on and the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on within the first preset time period of each control cycle when the charging and discharging request is a step-down discharge request, so as to form a first step-down discharge path between the target device 107 and the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit and the battery module 104, so that the battery module 104 discharges the target device 107.

其中，图4中的灰色宽箭头代表电流流向。所述目标设备107可以是需要充电的车辆。在接收到放电指令的情况下，若确定所述目标设备107的输入电压小于所述电池模块104的放电电压，确定所述充放电请求为降压放电请求。此时，所述第一开关106闭合，所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通。所述电池模块104的正极输出的电流，依次经过所述第二目标桥臂变换电路中的第二桥臂的上桥臂，所述第二目标桥臂变换电路中的第二绕组，所述第一开关106，所述第一目标桥臂变换电路中的第一绕组，所述第一目标桥臂变换电路中的第一桥臂的上桥臂，所述目标设备107的负极以及所述目标设备107的正极，回到所述电池模块104的负极端。Among them, the gray broad arrow in FIG4 represents the current flow direction. The target device 107 may be a vehicle that needs to be charged. In the case of receiving a discharge instruction, if it is determined that the input voltage of the target device 107 is less than the discharge voltage of the battery module 104, the charge and discharge request is determined to be a step-down discharge request. At this time, the first switch 106 is closed, the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit is turned on, and the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit is turned on. The current output by the positive electrode of the battery module 104 passes through the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit, the first switch 106, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the negative electrode of the target device 107 and the positive electrode of the target device 107, and returns to the negative end of the battery module 104.

需要说明的是，在所述充放电请求为降压放电请求的情况下，在每个控制周期的第一预设时间段内，所述电池模块104给所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中的第二绕组，以及所述电池模块104进行放电。所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组通过分走所述电池模块104的一部分电压，使得所述目标设备107接收到所述电池模块104的另一部分电压，从而实现所述电池模块104对所述目标设备107进行降压放电。It should be noted that, in the case where the charge and discharge request is a step-down discharge request, within the first preset time period of each control cycle, the battery module 104 discharges the first winding in the first target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit, and the battery module 104. The first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit divide a portion of the voltage of the battery module 104 so that the target device 107 receives another portion of the voltage of the battery module 104, thereby achieving step-down discharge of the target device 107 by the battery module 104.

另外，还需要说明的是，在包括第一电机电控组件102、所述第二电机电控组件103和第三电机电控组件300的情况下，可以任选两个电机电控组件通过所述第一开关106形成与所述电池模块104与所述目标设备107之间的降压放电通路。例如，所述第一电机电控组件102可以与所述第二电机电控组件103或者第三电机电控组件300通过所述第一开关106连接，形成与所述电池模块104与所述目标设备107之间的降压放电通路。所述第二电机电控组件103可以与所述第一电机电控组件102或者第三电机电控组件300通过所述第一开关106连接，形成与所述电池模块104与所述目标设备107之间的降压放电通路。所述第三电机电控组件可以是单相电机，也可以是三相电机。In addition, it should be noted that, in the case of including the first motor electronic control component 102, the second motor electronic control component 103 and the third motor electronic control component 300, any two motor electronic control components can be selected to form a step-down discharge path between the battery module 104 and the target device 107 through the first switch 106. For example, the first motor electronic control component 102 can be connected to the second motor electronic control component 103 or the third motor electronic control component 300 through the first switch 106 to form a step-down discharge path between the battery module 104 and the target device 107. The second motor electronic control component 103 can be connected to the first motor electronic control component 102 or the third motor electronic control component 300 through the first switch 106 to form a step-down discharge path between the battery module 104 and the target device 107. The third motor electronic control component can be a single-phase motor or a three-phase motor.

另外，当所述第一电机电控组件102包括一个第一桥臂变换电路时，可以将该第一桥臂变换电路作为所述第一目标桥臂变换电路；当所述第一电机电控组件102包括多个第一桥臂变换电路时，可以从多个所述第一桥臂变换电路中挑选数量少于原有所述第一桥臂变换电路总数的所述第一桥臂变换电路作为所述第一目标桥臂变换电路。并且，在每个控制周期，从一个或者多个第一桥臂变化电路中循环选择并确定第一目标桥臂变换电路。例如，当所述第一电机电控组件102是三相电机时，三相电机包括U，W，V三个第一桥臂变换电路，从一个或者多个第一桥臂变化电路中确定一个第一目标桥臂变换电路时，在第一个控制周期，可以选择U作为第一目标桥臂变换电路，在第二个控制周期，可以选择W作为第一目标桥臂变换电路，在第三个控制周期，可以选择V作为第一目标桥臂变换电路，在第四个控制周期，可以选择U作为第一目标桥臂变换电路，依次循环确定所述第一目标桥臂变换电路。当所述第一电机电控组件102是三相电机时，三相电机包括U，W，V三个第一桥臂变换电路，从多个所述第一桥臂变换电路中挑选数量少于原有所述第一桥臂变换电路总数的所述第一桥臂变换电路作为所述第一目标桥臂变换电路时，在第一个控制周期，可以选择U和W作为第一目标桥臂变换电路，在第二个控制周期，可以选择W和V作为第一目标桥臂变换电路，在第三个控制周期，可以选择V和U作为第一目标桥臂变换电路，在第四个控制周期，可以选择U和W作为第一目标桥臂变换电路，依次循环确定所述第一目标桥臂变换电路。确定第二目标桥臂变换电路的方式与上述确定第一目标桥臂变换电路的方式类似，在此不再赘述。通过从一个或者多个第一桥臂变化电路中交替确定第一目标桥臂变换电路，或者从一个或者多个第二桥臂变化电路中交替确定第二目标桥臂变换电路，能够避免单个桥臂过热，提高整体散热效率，延长第一桥臂变换电路和第二桥臂变换电路的使用寿命。In addition, when the first motor electronic control component 102 includes a first bridge arm conversion circuit, the first bridge arm conversion circuit can be used as the first target bridge arm conversion circuit; when the first motor electronic control component 102 includes multiple first bridge arm conversion circuits, the first bridge arm conversion circuits whose number is less than the total number of the original first bridge arm conversion circuits can be selected from the multiple first bridge arm conversion circuits as the first target bridge arm conversion circuit. And, in each control cycle, the first target bridge arm conversion circuit is cyclically selected and determined from one or more first bridge arm change circuits. For example, when the first motor electronic control component 102 is a three-phase motor, the three-phase motor includes three first bridge arm conversion circuits U, W, and V. When determining a first target bridge arm conversion circuit from one or more first bridge arm change circuits, in the first control cycle, U can be selected as the first target bridge arm conversion circuit, in the second control cycle, W can be selected as the first target bridge arm conversion circuit, in the third control cycle, V can be selected as the first target bridge arm conversion circuit, and in the fourth control cycle, U can be selected as the first target bridge arm conversion circuit, and the first target bridge arm conversion circuit is cyclically determined in sequence. When the first motor electronic control component 102 is a three-phase motor, the three-phase motor includes three first bridge arm conversion circuits of U, W, and V. When selecting the first bridge arm conversion circuits less than the total number of the original first bridge arm conversion circuits from the multiple first bridge arm conversion circuits as the first target bridge arm conversion circuit, in the first control cycle, U and W can be selected as the first target bridge arm conversion circuit, in the second control cycle, W and V can be selected as the first target bridge arm conversion circuit, in the third control cycle, V and U can be selected as the first target bridge arm conversion circuit, and in the fourth control cycle, U and W can be selected as the first target bridge arm conversion circuit, and the first target bridge arm conversion circuit is determined in turn in a cycle. The method for determining the second target bridge arm conversion circuit is similar to the method for determining the first target bridge arm conversion circuit described above, and will not be repeated here. By alternately determining the first target bridge arm conversion circuit from one or more first bridge arm change circuits, or alternately determining the second target bridge arm conversion circuit from one or more second bridge arm change circuits, it is possible to avoid overheating of a single bridge arm, improve the overall heat dissipation efficiency, and extend the service life of the first bridge arm conversion circuit and the second bridge arm conversion circuit.

以上技术方案，通过所述目标设备与所述第一目标桥臂变换电路和所述第二目标桥臂变换电路以及所述电池模块，形成第一降压放电通路，以使所述电池模块对所述目标设备进行降压放电，能够在所述目标设备输入电压小于所述电池模块的放电电压的情况下，对所述目标设备进行降压放电，能够有效避免由于突发状况导致的无法对缺电车辆进行充电的问题，能够有效提高车辆放电的灵活性和实用性，进而有利于提升用户的体验感和满意度。The above technical scheme forms a first step-down discharge path through the target device, the first target bridge arm conversion circuit, the second target bridge arm conversion circuit and the battery module, so that the battery module can perform step-down discharge on the target device. It can perform step-down discharge on the target device when the input voltage of the target device is less than the discharge voltage of the battery module, and can effectively avoid the problem of being unable to charge a power-deficient vehicle due to an emergency, and can effectively improve the flexibility and practicality of vehicle discharge, which is beneficial to improving user experience and satisfaction.

图5是根据本公开第五实施例示出的再一种充放电电路的电路图，如图5所示，所述控制器101，还用于在每个控制周期的第二预设时间段内，控制所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第一目标桥臂变换电路中的第一桥臂的下桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的上桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的下桥臂导通，以形成所述目标设备107与所述第一目标桥臂变换电路中的第一桥臂的下桥臂，所述第一目标桥臂变换电路中的第一绕组，和所述第二目标桥臂变换电路中的第二桥臂的上桥臂，以及所述第二目标桥臂变换电路中的第二绕组之间的第二降压放电通路，以使所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组对所述目标设备107进行放电。Figure 5 is a circuit diagram of another charging and discharging circuit shown in accordance with the fifth embodiment of the present disclosure. As shown in Figure 5, the controller 101 is also used to control the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned off, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned off, and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on within the second preset time period of each control cycle, so as to form a second step-down discharge path between the target device 107 and the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit, so that the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit discharge the target device 107.

其中，图5中的灰色宽箭头代表电流流向。所述控制周期可以只包括第一预设时间段，也可以包括第一预设时间段和第二预设时间段。当所述目标设备107的在第一预设时间段内的当前电量大于或等于所述目标设备107的电量阈值的情况下，所述控制周期可以只包括第一预设时间段。所述目标设备107可以是需要充电的车辆。在接收到放电指令的情况下，若确定所述目标设备107的输入电压小于所述电池模块104的放电电压，确定所述充放电请求为降压放电请求。此时，所述第一开关106闭合，所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第一目标桥臂变换电路中的第一桥臂的下桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的上桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的下桥臂导通。在第一预设时间段内，所述电池模块104对所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中的第二绕组以及目标设备107进行放电，在第二指定时间段，所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组将电池模块104提供的电能输出给所述目标设备107。在第二指定时间段，所述第二目标桥臂变换电路中的第二绕组正极输出的电流，依次经过所述第一开关106，所述第一目标桥臂变换电路中的第一绕组，所述第一目标桥臂变换电路中的第一桥臂的上桥臂，所述目标设备107的负极以及所述目标设备107的正极，所述第二目标桥臂变换电路中的第二桥臂的下桥臂，回到所述第二目标桥臂变换电路中的第二绕组的负极端。Among them, the gray broad arrow in FIG5 represents the current flow direction. The control cycle may include only the first preset time period, or may include the first preset time period and the second preset time period. When the current power of the target device 107 in the first preset time period is greater than or equal to the power threshold of the target device 107, the control cycle may include only the first preset time period. The target device 107 may be a vehicle that needs to be charged. In the case of receiving a discharge instruction, if it is determined that the input voltage of the target device 107 is less than the discharge voltage of the battery module 104, it is determined that the charge and discharge request is a step-down discharge request. At this time, the first switch 106 is closed, the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit is turned on, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit is turned off, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit is turned off, and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit is turned on. In the first preset time period, the battery module 104 discharges the first winding in the first target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit, and the target device 107. In the second specified time period, the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit output the electric energy provided by the battery module 104 to the target device 107. In the second specified time period, the current outputted from the positive electrode of the second winding in the second target bridge arm conversion circuit passes through the first switch 106, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the negative electrode of the target device 107 and the positive electrode of the target device 107, the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit, and returns to the negative terminal of the second winding in the second target bridge arm conversion circuit.

需要说明的是，在所述充放电请求为降压放电请求的情况下，在每个控制周期的第一预设时间段内，所述电池模块104给所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中的第二绕组，以及所述电池模块104进行放电。在每个控制周期的第二预设时间段内，所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组将第一预设时间段内接收到的所述电池模块104的电压输入到所述目标设备107，对所述目标设备107进行降压放电。It should be noted that, in the case where the charge and discharge request is a step-down discharge request, within the first preset time period of each control cycle, the battery module 104 discharges the first winding in the first target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit, and the battery module 104. Within the second preset time period of each control cycle, the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit input the voltage of the battery module 104 received within the first preset time period to the target device 107, and perform step-down discharge on the target device 107.

以上技术方案，通过所述目标设备与所述第一目标桥臂变换电路和所述第二目标桥臂变换电路以及所述电池模块，形成第二降压放电通路，以通过所述第一目标桥臂变换电路和所述第二目标桥臂变换电路对所述目标设备进行降压放电，能够在所述目标设备输入电压小于所述电池模块的放电电压的情况下，对所述目标设备进行放电，能够有效避免由于突发状况导致的无法对缺电车辆进行放电的问题，能够有效提高车辆放电的灵活性和实用性，从而有利于提升用户的体验感和满意度。The above technical scheme forms a second step-down discharge path through the target device and the first target bridge arm conversion circuit, the second target bridge arm conversion circuit and the battery module, so as to perform step-down discharge on the target device through the first target bridge arm conversion circuit and the second target bridge arm conversion circuit. The target device can be discharged when the input voltage of the target device is less than the discharge voltage of the battery module, and the problem of being unable to discharge the power-deficient vehicle due to emergencies can be effectively avoided. The flexibility and practicality of vehicle discharge can be effectively improved, which is beneficial to improving user experience and satisfaction.

图6是根据本公开第六实施例示出的再一种充放电电路的电路图，如图6所示，所述控制器101，用于在所述充放电请求为升压充电请求的情况下，在每个控制周期的第一待用时间段内控制所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的下桥臂导通，以形成所述目标设备107与所述第一目标桥臂变换电路中的第一桥臂的上桥臂所述第一目标桥臂变换电路中的第一绕组、所述第二目标桥臂变换电路中的第二桥臂的下桥臂和所述第二目标桥臂变换电路中的第二绕组之间的第一升压充电通路，以使所述目标设备107对所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组进行充电。Figure 6 is a circuit diagram of another charging and discharging circuit shown in accordance with the sixth embodiment of the present disclosure. As shown in Figure 6, the controller 101 is used to control the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on during the first standby time period of each control cycle when the charging and discharging request is a boost charging request, so as to form a first boost charging path between the target device 107 and the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit, so that the target device 107 charges the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit.

其中，图6中的灰色宽箭头代表电流流向。所述目标设备107可以是充电桩或其他具有充电功能的充电装置。在接收到充电指令的情况下，若确定所述目标设备107的输出电压小于所述电池模块104的充电电压，确定所述充放电请求为升压充电请求。此时，所述第一开关106闭合，所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的下桥臂导通。所述目标设备107的正极输出的电流，依次经过所述第一目标桥臂变换电路中的第一桥臂的上桥臂，所述第一目标桥臂变换电路中的第一绕组，所述第一开关106，所述第二目标桥臂变换电路中的第二绕组，所述第二目标桥臂变换电路中的第二桥臂的下桥臂，回到所述目标设备107的负极端。Among them, the gray broad arrow in FIG6 represents the current flow direction. The target device 107 may be a charging pile or other charging device with a charging function. In the case of receiving a charging instruction, if it is determined that the output voltage of the target device 107 is less than the charging voltage of the battery module 104, the charge and discharge request is determined to be a boost charging request. At this time, the first switch 106 is closed, the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit is turned on, and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit is turned on. The current output by the positive electrode of the target device 107 passes through the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the first switch 106, the second winding in the second target bridge arm conversion circuit, the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit, and returns to the negative terminal of the target device 107.

需要说明的是，在所述充放电请求为升压充电请求的情况下，在每个控制周期的第一待用时间段内，所述目标设备107给所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组进行充电，将所述目标设备107在第一待用时间段内输入的电能存储到所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组中。在后续的第二待用时间段内，通过所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组存储的电能对所述电池模块104进行升压充电。It should be noted that, in the case where the charge and discharge request is a boost charging request, in the first standby time period of each control cycle, the target device 107 charges the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit, and stores the electric energy input by the target device 107 in the first standby time period into the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit. In the subsequent second standby time period, the battery module 104 is boost charged by the electric energy stored in the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit.

另外，还需要说明的是，当所述第一电机电控组件102包括一个第一桥臂变换电路时，可以将该第一桥臂变换电路作为所述第一目标桥臂变换电路；当所述第一电机电控组件102包括多个第一桥臂变换电路时，可以从多个所述第一桥臂变换电路中挑选数量少于原有所述第一桥臂变换电路总数的所述第一桥臂变换电路作为所述第一目标桥臂变换电路。并且，在每个控制周期，从一个或者多个第一桥臂变化电路中循环选择并确定第一目标桥臂变换电路。例如，当所述第一电机电控组件102是三相电机时，三相电机包括U，W，V三个第一桥臂变换电路，从一个或者多个第一桥臂变化电路中确定一个第一目标桥臂变换电路时，在第一个控制周期，可以选择U作为第一目标桥臂变换电路，在第二个控制周期，可以选择W作为第一目标桥臂变换电路，在第三个控制周期，可以选择V作为第一目标桥臂变换电路，在第四个控制周期，可以选择U作为第一目标桥臂变换电路，依次循环确定所述第一目标桥臂变换电路。当所述第一电机电控组件102是三相电机时，三相电机包括U，W，V三个第一桥臂变换电路，从多个所述第一桥臂变换电路中挑选数量少于原有所述第一桥臂变换电路总数的所述第一桥臂变换电路作为所述第一目标桥臂变换电路时，在第一个控制周期，可以选择U和W作为第一目标桥臂变换电路，在第二个控制周期，可以选择W和V作为第一目标桥臂变换电路，在第三个控制周期，可以选择V和U作为第一目标桥臂变换电路，在第四个控制周期，可以选择U和W作为第一目标桥臂变换电路，依次循环确定所述第一目标桥臂变换电路。确定第二目标桥臂变换电路的方式与上述确定第一目标桥臂变换电路的方式类似，在此不再赘述。通过从一个或者多个第一桥臂变化电路中交替确定第一目标桥臂变换电路，或者从一个或者多个第二桥臂变化电路中交替确定第二目标桥臂变换电路，能够避免单个桥臂过热，提高整体散热效率，延长第一桥臂变换电路和第二桥臂变换电路的使用寿命。In addition, it should be noted that when the first motor electronic control component 102 includes a first bridge arm conversion circuit, the first bridge arm conversion circuit can be used as the first target bridge arm conversion circuit; when the first motor electronic control component 102 includes multiple first bridge arm conversion circuits, the first bridge arm conversion circuits less than the total number of the original first bridge arm conversion circuits can be selected from the multiple first bridge arm conversion circuits as the first target bridge arm conversion circuit. And, in each control cycle, the first target bridge arm conversion circuit is cyclically selected and determined from one or more first bridge arm change circuits. For example, when the first motor electronic control component 102 is a three-phase motor, the three-phase motor includes three first bridge arm conversion circuits U, W, and V. When determining a first target bridge arm conversion circuit from one or more first bridge arm change circuits, in the first control cycle, U can be selected as the first target bridge arm conversion circuit, in the second control cycle, W can be selected as the first target bridge arm conversion circuit, in the third control cycle, V can be selected as the first target bridge arm conversion circuit, and in the fourth control cycle, U can be selected as the first target bridge arm conversion circuit, and the first target bridge arm conversion circuit is determined cyclically in sequence. When the first motor electronic control component 102 is a three-phase motor, the three-phase motor includes three first bridge arm conversion circuits of U, W, and V. When selecting the first bridge arm conversion circuits less than the total number of the original first bridge arm conversion circuits from the multiple first bridge arm conversion circuits as the first target bridge arm conversion circuit, in the first control cycle, U and W can be selected as the first target bridge arm conversion circuit, in the second control cycle, W and V can be selected as the first target bridge arm conversion circuit, in the third control cycle, V and U can be selected as the first target bridge arm conversion circuit, and in the fourth control cycle, U and W can be selected as the first target bridge arm conversion circuit, and the first target bridge arm conversion circuit is determined in turn in a cycle. The method for determining the second target bridge arm conversion circuit is similar to the method for determining the first target bridge arm conversion circuit described above, and will not be repeated here. By alternately determining the first target bridge arm conversion circuit from one or more first bridge arm change circuits, or alternately determining the second target bridge arm conversion circuit from one or more second bridge arm change circuits, it is possible to avoid overheating of a single bridge arm, improve the overall heat dissipation efficiency, and extend the service life of the first bridge arm conversion circuit and the second bridge arm conversion circuit.

以上技术方案，通过所述目标设备与所述第一目标桥臂变换电路和所述第二目标桥臂变换电路，形成第一升压充电通路，以使所述目标设备对所述第一目标桥臂变换电路和所述第二目标桥臂变换电路进行充电，能够在所述目标设备输出电压小于所述电池模块的充电电压的情况下，先对所述第一目标桥臂变换电路和所述第二目标桥臂变换电路进行充电，为后续通过所述目标设备，所述第一目标桥臂变换电路和所述第二目标桥臂变换电路对所述电池模块进行升压充电提供依据。The above technical scheme forms a first boost charging path through the target device and the first target bridge arm conversion circuit and the second target bridge arm conversion circuit, so that the target device can charge the first target bridge arm conversion circuit and the second target bridge arm conversion circuit. When the output voltage of the target device is lower than the charging voltage of the battery module, the first target bridge arm conversion circuit and the second target bridge arm conversion circuit can be charged first, thereby providing a basis for the subsequent boost charging of the battery module through the target device, the first target bridge arm conversion circuit and the second target bridge arm conversion circuit.

可选地，仍以图2为例，如图2所示，所述控制器101，还用于在每个控制周期的第二待用时间段内，控制所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第一目标桥臂变换电路中的第一桥臂的下桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的下桥臂截止，以形成所述目标设备107与第一目标桥臂变换电路中的第一桥臂的上桥臂、第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中第二桥臂的上桥臂，所述第二目标桥臂变换电路中的第二绕组以及所述电池模块104之间的第二升压充电通路，以使所述目标设备107、所述第一目标桥臂变换电路中的第一绕组以及所述第二目标桥臂变换电路中的第二绕组对所述电池模块104进行充电。Optionally, still taking Figure 2 as an example, as shown in Figure 2, the controller 101 is also used to control the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned off, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on, and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned off, so as to form a second boost charging path between the target device 107 and the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit, and the battery module 104, so that the target device 107, the first winding in the first target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit charge the battery module 104.

其中，所述控制周期可以只包括第一待用时间段，也可以包括第一待用时间段和第二待用时间段。当所述电池模块104在第二待用时间段的当前电量大于或等于所述电池模块104的电量阈值的情况下，所述控制周期可以只包括第一待用时间段。所述目标设备107可以是充电桩或其他具有充电功能的充电装置。在接收到充电指令的情况下，若确定所述目标设备107的输出电压小于所述电池模块104的充电电压，确定所述充放电请求为升压充电请求。此时，所述第一开关106闭合，所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第一目标桥臂变换电路中的第一桥臂的下桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的下桥臂截止。在第一待用时间段，所述目标设备107对所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中的第二绕组以及电池模块104进行充电，在第二待用时间段，所述目标设备107，所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组对所述电池模块104进行充电。在第二待用时间段，所述目标设备107的正极输出的电流，依次经过所述第一目标桥臂变换电路中的第一桥臂的上桥臂，所述第一目标桥臂变换电路中的第一绕组，所述第一开关106，所述第二目标桥臂变换电路中的第二绕组，所述第二目标桥臂变换电路中的第二桥臂的上桥臂，所述电池模块104的正极，所述电池模块104的负极，回到所述目标设备107的负极端。Wherein, the control cycle may include only the first standby time period, or may include the first standby time period and the second standby time period. When the current power of the battery module 104 in the second standby time period is greater than or equal to the power threshold of the battery module 104, the control cycle may include only the first standby time period. The target device 107 may be a charging pile or other charging device with a charging function. In the case of receiving a charging instruction, if it is determined that the output voltage of the target device 107 is less than the charging voltage of the battery module 104, it is determined that the charge and discharge request is a boost charging request. At this time, the first switch 106 is closed, the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit is turned on, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit is turned off, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit is turned on, and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit is turned off. In the first standby time period, the target device 107 charges the first winding in the first target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit, and the battery module 104. In the second standby time period, the target device 107, the first winding in the first target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit charge the battery module 104. In the second standby time period, the current outputted by the positive electrode of the target device 107 passes through the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the first switch 106, the second winding in the second target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, the positive electrode of the battery module 104, the negative electrode of the battery module 104, and returns to the negative terminal of the target device 107 in sequence.

需要说明的是，在所述充放电请求为升压充电请求的情况下，在每个控制周期的第一待用时间段内，将所述目标设备107在第一待用时间段内输入的电能存储到所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组中。在每个控制周期的第二待用时间段内，通过所述目标设备107，所述第一目标桥臂变换电路中的第一绕组，以及所述第二目标桥臂变换电路中的第二绕组共同给所述电池模块104进行充电，实现升压充电。It should be noted that, in the case where the charge and discharge request is a boost charging request, in the first standby time period of each control cycle, the electric energy input by the target device 107 in the first standby time period is stored in the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit. In the second standby time period of each control cycle, the battery module 104 is charged by the target device 107, the first winding in the first target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit to achieve boost charging.

以上技术方案，通过所述目标设备，所述第一目标桥臂变换电路和所述第二目标桥臂变换电路以及所述电池模块，形成第二升压充电通路，以使所述目标设备，所述第一目标桥臂变换电路和所述第二目标桥臂变换电路对所述电池模块进行升压充电，能够在所述目标设备输出电压小于所述电池模块的充电电压的情况下，通过所述目标设备，所述第一目标桥臂变换电路和所述第二目标桥臂变换电路对所述电池模块进行升压充电，能够避免发生由于所述目标设备的输出电压小于所述电池模块的充电电压导致无法对车辆进行充电以及效率低下的问题，从而有利于提高用户的体验感和满意度。The above technical scheme forms a second boost charging path through the target device, the first target bridge arm conversion circuit, the second target bridge arm conversion circuit and the battery module, so that the target device, the first target bridge arm conversion circuit and the second target bridge arm conversion circuit can boost and charge the battery module. When the output voltage of the target device is lower than the charging voltage of the battery module, the battery module can be boosted and charged through the target device, the first target bridge arm conversion circuit and the second target bridge arm conversion circuit. The problem of being unable to charge the vehicle and being inefficient due to the output voltage of the target device being lower than the charging voltage of the battery module can be avoided, thereby helping to improve user experience and satisfaction.

图7是本公开第七实施例示出的再一种充放电电路的电路图，如图7所示，所述控制器101，用于在所述充放电请求为升压放电请求的情况下，在每个控制周期的第一设定时间段内控制所述第一目标桥臂变换电路中的第一桥臂的下桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通，以形成所述电池模块104与所述第一目标桥臂变换电路中的第一桥臂的下桥臂，所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中的第二桥臂的上桥臂，以及所述第二目标桥臂变换电路中的第二绕组之间的第一升压放电通路，以使所述电池模块104对所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组进行放电。Figure 7 is a circuit diagram of another charging and discharging circuit shown in the seventh embodiment of the present disclosure. As shown in Figure 7, the controller 101 is used to control the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on and the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on within the first set time period of each control cycle when the charging and discharging request is a boost discharge request, so as to form a first boost discharge path between the battery module 104 and the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit, so that the battery module 104 discharges the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit.

其中，图7中的灰色宽箭头代表电流流向。所述目标设备107可以是需要充电的车辆。在接收到放电指令的情况下，若确定所述目标设备107的输入电压大于或等于所述电池模块104的放电电压，确定所述充放电请求为升压放电请求。此时，所述第一开关106闭合，所述第一目标桥臂变换电路中的第一桥臂的下桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通。所述电池模块104的正极输出的电流，依次经过所述第二目标桥臂变换电路中的第二桥臂的上桥臂，所述第二目标桥臂变换电路中的第二绕组，所述第一开关106，所述第一目标桥臂变换电路中的第一绕组，所述第一目标桥臂变换电路中的第一桥臂的下桥臂，回到所述电池模块104的负极端。Among them, the gray broad arrow in FIG7 represents the current flow direction. The target device 107 may be a vehicle that needs to be charged. In the case of receiving a discharge instruction, if it is determined that the input voltage of the target device 107 is greater than or equal to the discharge voltage of the battery module 104, the charge and discharge request is determined to be a boost discharge request. At this time, the first switch 106 is closed, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit is turned on, and the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit is turned on. The current output by the positive electrode of the battery module 104 passes through the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit, the first switch 106, the first winding in the first target bridge arm conversion circuit, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit, and returns to the negative terminal of the battery module 104.

需要说明的是，在所述充放电请求为升压放电请求的情况下，在每个控制周期的第一设定时间段内，所述电池模块104给所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中的第二绕组进行放电。将所述电池模块104在第一设定时间段内输入的电能存储到所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组中。在后续的第二设定时间段内，通过所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组存储的电能对所述目标设备107进行升压放电。It should be noted that, in the case where the charge and discharge request is a boost discharge request, in the first set time period of each control cycle, the battery module 104 discharges the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit. The electric energy input by the battery module 104 in the first set time period is stored in the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit. In the subsequent second set time period, the target device 107 is boosted and discharged by the electric energy stored in the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit.

另外，还需要说明的是，当所述第一电机电控组件102包括一个第一桥臂变换电路时，可以将该第一桥臂变换电路作为所述第一目标桥臂变换电路；当所述第一电机电控组件102包括多个第一桥臂变换电路时，可以从多个所述第一桥臂变换电路中挑选数量少于原有所述第一桥臂变换电路总数的所述第一桥臂变换电路作为所述第一目标桥臂变换电路。并且，在每个控制周期，从一个或者多个第一桥臂变化电路中循环选择并确定第一目标桥臂变换电路。例如，当所述第一电机电控组件102是三相电机时，三相电机包括U，W，V三个第一桥臂变换电路，从一个或者多个第一桥臂变化电路中确定一个第一目标桥臂变换电路时，在第一个控制周期，可以选择U作为第一目标桥臂变换电路，在第二个控制周期，可以选择W作为第一目标桥臂变换电路，在第三个控制周期，可以选择V作为第一目标桥臂变换电路，在第四个控制周期，可以选择U作为第一目标桥臂变换电路，依次循环确定所述第一目标桥臂变换电路。当所述第一电机电控组件102是三相电机时，三相电机包括U，W，V三个第一桥臂变换电路，从多个所述第一桥臂变换电路中挑选数量少于原有所述第一桥臂变换电路总数的所述第一桥臂变换电路作为所述第一目标桥臂变换电路时，在第一个控制周期，可以选择U和W作为第一目标桥臂变换电路，在第二个控制周期，可以选择W和V作为第一目标桥臂变换电路，在第三个控制周期，可以选择V和U作为第一目标桥臂变换电路，在第四个控制周期，可以选择U和W作为第一目标桥臂变换电路，依次循环确定所述第一目标桥臂变换电路。确定第二目标桥臂变换电路的方式与上述确定第一目标桥臂变换电路的方式类似，在此不再赘述。In addition, it should be noted that when the first motor electronic control component 102 includes a first bridge arm conversion circuit, the first bridge arm conversion circuit can be used as the first target bridge arm conversion circuit; when the first motor electronic control component 102 includes multiple first bridge arm conversion circuits, the first bridge arm conversion circuits less than the total number of the original first bridge arm conversion circuits can be selected from the multiple first bridge arm conversion circuits as the first target bridge arm conversion circuit. And, in each control cycle, the first target bridge arm conversion circuit is cyclically selected and determined from one or more first bridge arm change circuits. For example, when the first motor electronic control component 102 is a three-phase motor, the three-phase motor includes three first bridge arm conversion circuits U, W, and V. When determining a first target bridge arm conversion circuit from one or more first bridge arm change circuits, in the first control cycle, U can be selected as the first target bridge arm conversion circuit, in the second control cycle, W can be selected as the first target bridge arm conversion circuit, in the third control cycle, V can be selected as the first target bridge arm conversion circuit, and in the fourth control cycle, U can be selected as the first target bridge arm conversion circuit, and the first target bridge arm conversion circuit is determined cyclically in sequence. When the first motor electronic control component 102 is a three-phase motor, the three-phase motor includes three first bridge arm conversion circuits U, W, and V. When selecting the first bridge arm conversion circuits whose number is less than the total number of the original first bridge arm conversion circuits from the multiple first bridge arm conversion circuits as the first target bridge arm conversion circuit, in the first control cycle, U and W can be selected as the first target bridge arm conversion circuit, in the second control cycle, W and V can be selected as the first target bridge arm conversion circuit, in the third control cycle, V and U can be selected as the first target bridge arm conversion circuit, and in the fourth control cycle, U and W can be selected as the first target bridge arm conversion circuit, and the first target bridge arm conversion circuit is determined in a cycle in sequence. The method of determining the second target bridge arm conversion circuit is similar to the method of determining the first target bridge arm conversion circuit as described above, and will not be repeated here.

需要注意的是，所述电池模块104对所述目标设备107进行升压放电时，可以通过调节所述第一目标桥臂变换电路和第二目标桥臂变换电路，实现所述电池模块104对所述目标设备107输出的电压可控可调。It should be noted that when the battery module 104 performs boost discharge on the target device 107 , the voltage output by the battery module 104 to the target device 107 can be controlled and adjusted by adjusting the first target bridge arm conversion circuit and the second target bridge arm conversion circuit.

示例地，所述第一电机电控组件102包括3个第一桥臂变换电路，所述第二电机电控组件103包括3个第二桥臂变换电路，每个第一桥臂变换电路可以维持10V的电压降，每个第二桥臂变换电路可以维持10V的电压降。所述电池模块104输出的电压为50V，所述目标设备107可以接收的充电电压范围为90-100V，此时，所述电池模块104需要对所述目标设备107进行升压放电。通过从3个第一桥臂变换电路挑选2个第一桥臂变换电路作为第一目标桥臂变换电路，从3个第二桥臂变换电路挑选2个第二桥臂变换电路作为第二目标桥臂变换电路。此时，第一目标桥臂变换电路和第二目标桥臂变换电路能够存储所述电池模块104的40V电压，所述电池模块104输出的电压为50V。通过第一目标桥臂变换电路和第二目标桥臂变换电路，以及所述电池模块104共同向所述目标设备107进行放电的电压为90V，满足所述目标设备107的充电电压范围，从而实现所述电池模块104对所述目标设备107进行升压放电。For example, the first motor electronic control component 102 includes three first bridge arm conversion circuits, and the second motor electronic control component 103 includes three second bridge arm conversion circuits. Each first bridge arm conversion circuit can maintain a voltage drop of 10V, and each second bridge arm conversion circuit can maintain a voltage drop of 10V. The voltage output by the battery module 104 is 50V, and the charging voltage range that the target device 107 can receive is 90-100V. At this time, the battery module 104 needs to boost and discharge the target device 107. By selecting two first bridge arm conversion circuits from the three first bridge arm conversion circuits as the first target bridge arm conversion circuits, and selecting two second bridge arm conversion circuits from the three second bridge arm conversion circuits as the second target bridge arm conversion circuits. At this time, the first target bridge arm conversion circuit and the second target bridge arm conversion circuit can store the 40V voltage of the battery module 104, and the voltage output by the battery module 104 is 50V. The voltage discharged to the target device 107 by the first target bridge arm conversion circuit, the second target bridge arm conversion circuit, and the battery module 104 is 90V, which meets the charging voltage range of the target device 107, thereby enabling the battery module 104 to perform boost discharge on the target device 107.

同样，也可以将3个第一桥臂变换电路全部作为第一目标桥臂变换电路，再从3个第二桥臂变换电路挑选2个第二桥臂变换电路作为第二目标桥臂变换电路。此时，第一目标桥臂变换电路和第二目标桥臂变换电路能够存储所述电池模块104的50V电压，所述电池模块104输出的电压为50V。通过第一目标桥臂变换电路和第二目标桥臂变换电路，以及所述电池模块104共同向所述目标设备107进行放电的电压为100V，满足所述目标设备107的充电电压范围，从而实现所述电池模块104对所述目标设备107进行升压放电。Similarly, all three first bridge arm conversion circuits can be used as the first target bridge arm conversion circuit, and two second bridge arm conversion circuits can be selected from the three second bridge arm conversion circuits as the second target bridge arm conversion circuit. At this time, the first target bridge arm conversion circuit and the second target bridge arm conversion circuit can store the 50V voltage of the battery module 104, and the voltage output by the battery module 104 is 50V. The voltage discharged to the target device 107 by the first target bridge arm conversion circuit, the second target bridge arm conversion circuit, and the battery module 104 is 100V, which meets the charging voltage range of the target device 107, thereby realizing the boost discharge of the target device 107 by the battery module 104.

以上技术方案，通过所述电池模块与所述第一目标桥臂变换电路和所述第二目标桥臂变换电路，形成第一升压放电通路，以使所述电池模块对所述第一目标桥臂变换电路和所述第二目标桥臂变换电路进行充电，能够在所述目标设备输入电压大于所述电池模块的放电电压的情况下，所述电池模块先对所述第一目标桥臂变换电路和所述第二目标桥臂变换电路进行充电，为后续通过所述电池模块，所述第一目标桥臂变换电路和所述第二目标桥臂变换电路对所述目标设备进行升压放电提供依据。The above technical scheme forms a first boost discharge path through the battery module and the first target bridge arm conversion circuit and the second target bridge arm conversion circuit, so that the battery module can charge the first target bridge arm conversion circuit and the second target bridge arm conversion circuit. When the input voltage of the target device is greater than the discharge voltage of the battery module, the battery module can first charge the first target bridge arm conversion circuit and the second target bridge arm conversion circuit, thereby providing a basis for the subsequent boost discharge of the target device through the battery module, the first target bridge arm conversion circuit and the second target bridge arm conversion circuit.

图8是本公开第八实施例示出的再一种充放电电路的电路图，如图8所示，所述控制器101，还用于在每个控制周期的第二设定时间段内，控制所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第一目标桥臂变换电路中的第一桥臂的下桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的下桥臂截止，以形成所述电池模块104与第一目标桥臂变换电路中的第一桥臂的上桥臂，所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中的第二桥臂的上桥臂，所述第二目标桥臂变换电路中的第二绕组，以及所述目标设备107之间的第二升压放电通路，以使所述电池模块104、所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组对所述目标设备107进行放电。Figure 8 is a circuit diagram of another charging and discharging circuit shown in the eighth embodiment of the present disclosure. As shown in Figure 8, the controller 101 is also used to control the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned off, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on, and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned off within the second set time period of each control cycle, so as to form a second boost discharge path between the battery module 104 and the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit, and the target device 107, so that the battery module 104, the first winding in the first target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit discharge the target device 107.

其中，图8中的灰色宽箭头代表电流流向。所述控制周期可以只包括第一设定时间段内，也可以包括第一设定时间段和第二设定时间段。当所述目标设备107在第二设定时间段的当前电量大于或等于所述目标设备107的电量阈值的情况下，所述控制周期可以只包括第一设定时间段。所述目标设备107可以是需要充电的车辆。在接收到放电指令的情况下，若确定所述目标设备107的输入电压大于或等于所述电池模块104的放电电压，确定所述充放电请求为升压放电请求。此时，所述第一开关106闭合，所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第一目标桥臂变换电路中的第一桥臂的下桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的下桥臂截止。在第一设定时间段内，所述电池模块104对所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组进行放电，在第二设定时间段，所述电池模块104，所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组对所述目标设备107进行升压放电。所述电池模块104正极输出的电流，依次经过所述第二目标桥臂变换电路中的第二桥臂的上桥臂，所述第二目标桥臂变换电路中的第二绕组，所述第一开关106，所述第一目标桥臂变换电路中的第一绕组，所述第一目标桥臂变换电路中的第一桥臂的上桥臂，所述目标设备107的负极，所述目标设备107的正极，回到所述电池模块104的负极端。Among them, the gray broad arrow in FIG8 represents the current flow direction. The control cycle may include only the first set time period, or may include the first set time period and the second set time period. When the current power of the target device 107 in the second set time period is greater than or equal to the power threshold of the target device 107, the control cycle may include only the first set time period. The target device 107 may be a vehicle that needs to be charged. In the case of receiving a discharge instruction, if it is determined that the input voltage of the target device 107 is greater than or equal to the discharge voltage of the battery module 104, it is determined that the charge and discharge request is a boost discharge request. At this time, the first switch 106 is closed, the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit is turned on, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit is turned off, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit is turned on, and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit is turned off. In the first set time period, the battery module 104 discharges the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit. In the second set time period, the battery module 104, the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit perform boost discharge on the target device 107. The current output from the positive electrode of the battery module 104 passes through the upper arm of the second bridge arm in the second target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit, the first switch 106, the first winding in the first target bridge arm conversion circuit, the upper arm of the first bridge arm in the first target bridge arm conversion circuit, the negative electrode of the target device 107, the positive electrode of the target device 107, and returns to the negative terminal of the battery module 104.

需要说明的是，在所述充放电请求为升压放电请求的情况下，在每个控制周期的第一设定时间段内，将所述电池模块104在第一设定时间段内输入的电能存储到所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组中。在每个控制周期的第二设定时间段内，通过所述电池模块104，所述第一目标桥臂变换电路中的第一绕组，以及所述第二目标桥臂变换电路中的第二绕组共同给所述目标设备107进行放电，实现升压放电。It should be noted that, in the case where the charge and discharge request is a boost discharge request, in the first set time period of each control cycle, the electric energy input by the battery module 104 in the first set time period is stored in the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit. In the second set time period of each control cycle, the battery module 104, the first winding in the first target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit are used to discharge the target device 107 together to achieve boost discharge.

以上技术方案，通过所述目标设备与所述第一目标桥臂变换电路和所述第二目标桥臂变换电路以及所述电池模块，形成第二升压放电通路，以通过所述电池模块，所述第一目标桥臂变换电路和所述第二目标桥臂变换电路对所述目标设备进行升压放电，能够在所述目标设备输入电压大于所述电池模块的放电电压的情况下，对所述目标设备进行升压放电，能够避免由于突发状况导致的无法对缺电车辆进行放电的问题，从而能够有效提高车辆放电的灵活性和实用性，有利于提升用户的体验感和满意度。The above technical scheme forms a second boost discharge path through the target device and the first target bridge arm conversion circuit, the second target bridge arm conversion circuit and the battery module, so as to boost and discharge the target device through the battery module, the first target bridge arm conversion circuit and the second target bridge arm conversion circuit. It can boost and discharge the target device when the input voltage of the target device is greater than the discharge voltage of the battery module, and can avoid the problem of being unable to discharge the power-deficient vehicle due to emergencies, thereby effectively improving the flexibility and practicality of vehicle discharge, which is conducive to improving user experience and satisfaction.

可选地，仍以图7为例，如图7所示，所述充放电电路还包括第二开关108，所述第二开关108的一端与所述充放电接口连接，所述第二开关108的另一端与所述电池模块104连接，Optionally, still taking FIG. 7 as an example, as shown in FIG. 7 , the charge and discharge circuit further includes a second switch 108 , one end of the second switch 108 is connected to the charge and discharge interface, and the other end of the second switch 108 is connected to the battery module 104 ,

所述控制器101，用于获取所述电池模块104的当前温度，在所述当前温度小于或等于预设的温度阈值的情况下，在每个控制周期的第一持续时间段内控制所述第一目标桥臂变换电路中的第一桥臂的下桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通，以形成所述电池模块104与所述第一目标桥臂变换电路中的第一桥臂的下桥臂，所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中的第二桥臂的上桥臂以及所述第二目标桥臂变换电路中的第二绕组之间的第一自加热通路，对所述电池模块104进行加热。The controller 101 is used to obtain the current temperature of the battery module 104. When the current temperature is less than or equal to a preset temperature threshold, the controller 101 controls the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on and the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on within the first duration period of each control cycle, so as to form a first self-heating path between the battery module 104 and the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit, so as to heat the battery module 104.

其中，在所述当前温度小于或等于预设的温度阈值的情况下，所述第一开关106闭合，所述第二开关108断开，所述第一目标桥臂变换电路中的第一桥臂的下桥臂导通，所述第二目标桥臂变换电路中的第二桥臂的上桥臂导通。在第一持续时间段内，所述电池模块104的正极输出的电流，依次经过所述第二目标桥臂变换电路中的第二桥臂的上桥臂，所述第二目标桥臂变换电路中的第二绕组，所述第一开关106，所述第一目标桥臂变换电路中的第一绕组，所述第一目标桥臂变换电路中的第一桥臂的下桥臂导通，回到所述电池模块104的负极端。Wherein, when the current temperature is less than or equal to the preset temperature threshold, the first switch 106 is closed, the second switch 108 is opened, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit is turned on, and the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit is turned on. During the first duration period, the current output by the positive electrode of the battery module 104 passes through the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit, the second winding in the second target bridge arm conversion circuit, the first switch 106, the first winding in the first target bridge arm conversion circuit, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit is turned on, and returns to the negative terminal of the battery module 104.

需要说明的是，在所述当前温度小于或等于预设的温度阈值的情况下，每个控制周期的第一持续时间内，所述电池模块104与所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组形成第一自加热通路，此时所述电池模块104通过所述第一自加热通路，给所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组进行充电，并且由于所述电池模块104自身的内阻，部分电能可以转换为热能对所述电池模块进行加热，此时电池模块104的电流方向由正极流向负极。It should be noted that, when the current temperature is less than or equal to the preset temperature threshold, within the first duration of each control cycle, the battery module 104 and the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit form a first self-heating path. At this time, the battery module 104 charges the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit through the first self-heating path, and due to the internal resistance of the battery module 104 itself, part of the electrical energy can be converted into heat energy to heat the battery module. At this time, the current direction of the battery module 104 flows from the positive pole to the negative pole.

另外，还需要说明的是，当所述第一电机电控组件102包括一个第一桥臂变换电路时，可以将该第一桥臂变换电路作为所述第一目标桥臂变换电路；当所述第一电机电控组件102包括多个第一桥臂变换电路时，可以从多个所述第一桥臂变换电路中挑选数量少于原有所述第一桥臂变换电路总数的所述第一桥臂变换电路作为所述第一目标桥臂变换电路。并且，在每个控制周期，从一个或者多个第一桥臂变化电路中循环选择并确定第一目标桥臂变换电路。示例地，当所述第一电机电控组件102是三相电机时，三相电机包括U，W，V三个第一桥臂变换电路，从一个或者多个第一桥臂变化电路中确定一个第一目标桥臂变换电路时，在第一个控制周期，可以选择U作为第一目标桥臂变换电路，在第二个控制周期，可以选择W作为第一目标桥臂变换电路，在第三个控制周期，可以选择V作为第一目标桥臂变换电路，在第四个控制周期，可以选择U作为第一目标桥臂变换电路，依次循环确定所述第一目标桥臂变换电路。当所述第一电机电控组件102是三相电机时，三相电机包括U，W，V三个第一桥臂变换电路，从多个所述第一桥臂变换电路中挑选数量少于原有所述第一桥臂变换电路总数的所述第一桥臂变换电路作为所述第一目标桥臂变换电路。在第一个控制周期，可以选择U和W作为第一目标桥臂变换电路，在第二个控制周期，可以选择W和V作为第一目标桥臂变换电路，在第三个控制周期，可以选择V和U作为第一目标桥臂变换电路，在第四个控制周期，可以选择U和W作为第一目标桥臂变换电路，依次循环确定所述第一目标桥臂变换电路。确定第二目标桥臂变换电路的方式与上述确定第一目标桥臂变换电路的方式类似，在此不再赘述。In addition, it should be noted that when the first motor electronic control component 102 includes a first bridge arm conversion circuit, the first bridge arm conversion circuit can be used as the first target bridge arm conversion circuit; when the first motor electronic control component 102 includes multiple first bridge arm conversion circuits, the first bridge arm conversion circuits less than the total number of the original first bridge arm conversion circuits can be selected from the multiple first bridge arm conversion circuits as the first target bridge arm conversion circuit. And, in each control cycle, the first target bridge arm conversion circuit is cyclically selected and determined from one or more first bridge arm change circuits. For example, when the first motor electronic control component 102 is a three-phase motor, the three-phase motor includes three first bridge arm conversion circuits U, W, and V. When a first target bridge arm conversion circuit is determined from one or more first bridge arm change circuits, in the first control cycle, U can be selected as the first target bridge arm conversion circuit, in the second control cycle, W can be selected as the first target bridge arm conversion circuit, in the third control cycle, V can be selected as the first target bridge arm conversion circuit, and in the fourth control cycle, U can be selected as the first target bridge arm conversion circuit, and the first target bridge arm conversion circuit is determined cyclically in sequence. When the first motor electronic control component 102 is a three-phase motor, the three-phase motor includes three first bridge arm conversion circuits, U, W, and V. The first bridge arm conversion circuits less than the total number of the original first bridge arm conversion circuits are selected from the multiple first bridge arm conversion circuits as the first target bridge arm conversion circuits. In the first control cycle, U and W can be selected as the first target bridge arm conversion circuits, in the second control cycle, W and V can be selected as the first target bridge arm conversion circuits, in the third control cycle, V and U can be selected as the first target bridge arm conversion circuits, and in the fourth control cycle, U and W can be selected as the first target bridge arm conversion circuits, and the first target bridge arm conversion circuits are determined in a cycle in sequence. The method of determining the second target bridge arm conversion circuit is similar to the method of determining the first target bridge arm conversion circuit described above, and will not be repeated here.

以上技术方案，通过所述电池模块，所述第一目标桥臂变换电路和所述第二目标桥臂变换电路，形成第一自加热通路，能够在所述电池模块的当前温度小于或等于预设的温度阈值的情况下，对所述电池模块进行加热，能够避免发生由于所述电池模块低温导致的耗电快的问题，从而能够有效提高用户的体验感和满意度。The above technical solution forms a first self-heating path through the battery module, the first target bridge arm conversion circuit and the second target bridge arm conversion circuit, which can heat the battery module when the current temperature of the battery module is less than or equal to a preset temperature threshold, thereby avoiding the problem of fast power consumption caused by the low temperature of the battery module, thereby effectively improving the user experience and satisfaction.

图9是根据本公开第九实施例示出的再一种充放电电路的电路图，如图9所示，所述控制器101，还用于在每个控制周期的第二持续时间段内，控制所述第二开关108闭合，并控制所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第一目标桥臂变换电路中的第一桥臂的下桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的上桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的下桥臂导通，以通过所述第二开关108形成所述电池模块104与所述第一目标桥臂变换电路中的第一桥臂的上桥臂，所述第一目标桥臂变换电路中的第一绕组，所述第二目标桥臂变换电路中的第二桥臂的下桥臂，以及所述第二目标桥臂变换电路中的第二绕组之间的第二自加热通路，对所述电池模块104进行加热。Figure 9 is a circuit diagram of another charging and discharging circuit shown in accordance with the ninth embodiment of the present disclosure. As shown in Figure 9, the controller 101 is further used to control the second switch 108 to close during the second duration period of each control cycle, and to control the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned on, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit to be turned off, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned off, and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit to be turned on, so as to form a second self-heating path between the battery module 104 and the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the first winding in the first target bridge arm conversion circuit, the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit, and the second winding in the second target bridge arm conversion circuit through the second switch 108 to heat the battery module 104.

其中，图9中的灰色宽箭头代表电流流向。所述控制周期可以只包括第一持续时间段内，也可以包括第一持续时间段和第二持续时间段。当所述当前温度在第一设定时间段大于或等于所述温度阈值的情况下，所述控制周期可以只包括第一持续时间段。在第二持续时间段内，所述第二开关108闭合，所述第一目标桥臂变换电路中的第一桥臂的上桥臂导通，所述第一目标桥臂变换电路中的第一桥臂的下桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的上桥臂截止，所述第二目标桥臂变换电路中的第二桥臂的下桥臂导通。在第一持续时间段内，所述电池模块104对所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组进行放电，在第二持续时间段，所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组对所述电池模块104进行充电。在第二持续时间段，所述第二目标桥臂变换电路中的第二绕组正极输出的电流，依次经过所述第一开关106，所述第一目标桥臂变换电路中的第一绕组，所述第一目标桥臂变换电路中的第一桥臂的上桥臂，所述第二开关108，所述电池模块104的正极，所述电池模块104的负极，所述第二目标桥臂变换电路中的第二桥臂的下桥臂，回到所述第二目标桥臂变换电路中的第二绕组的负极端。Among them, the gray broad arrow in FIG9 represents the current flow direction. The control cycle may include only the first duration period, or may include the first duration period and the second duration period. When the current temperature is greater than or equal to the temperature threshold in the first set time period, the control cycle may include only the first duration period. In the second duration period, the second switch 108 is closed, the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit is turned on, the lower bridge arm of the first bridge arm in the first target bridge arm conversion circuit is turned off, the upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit is turned off, and the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit is turned on. In the first duration period, the battery module 104 discharges the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit, and in the second duration period, the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit charge the battery module 104. During the second duration period, the current output from the positive pole of the second winding in the second target bridge arm conversion circuit passes through the first switch 106, the first winding in the first target bridge arm conversion circuit, the upper bridge arm of the first bridge arm in the first target bridge arm conversion circuit, the second switch 108, the positive pole of the battery module 104, the negative pole of the battery module 104, the lower bridge arm of the second bridge arm in the second target bridge arm conversion circuit, and returns to the negative end of the second winding in the second target bridge arm conversion circuit.

需要说明的是，在所述当前温度小于或等于预设的温度阈值的情况下，每个控制周期的第二持续时间内，所述第一目标桥臂变换电路中的第一绕组和所述第二目标桥臂变换电路中的第二绕组将在第一持续时间内接收的电能通过所述第二自加热通路输入到所述电池模块104中，并经过所述电池模块104的内阻转换为热能，对所述电池模块104进行加热。It should be noted that, when the current temperature is less than or equal to the preset temperature threshold, during the second duration of each control cycle, the first winding in the first target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit input the electric energy received during the first duration into the battery module 104 through the second self-heating path, and convert it into heat energy through the internal resistance of the battery module 104, thereby heating the battery module 104.

以上技术方案，通过所述电池模块，所述第一目标桥臂变换电路和所述第二目标桥臂变换电路，形成第二自加热通路，能够在所述电池模块的当前温度小于或等于预设的温度阈值的情况下，对所述电池模块进行加热，能够避免发生由于所述电池模块低温导致的耗电快的问题，从而能够有效提高用户的体验感和满意度。The above technical solution forms a second self-heating path through the battery module, the first target bridge arm conversion circuit and the second target bridge arm conversion circuit, which can heat the battery module when the current temperature of the battery module is less than or equal to a preset temperature threshold, thereby avoiding the problem of fast power consumption caused by the low temperature of the battery module, thereby effectively improving the user experience and satisfaction.

本公开又一示例性实施例中，提供一种电子设备，该电子设备包括以上图1-图9中任一项所提供的充放电电路。In yet another exemplary embodiment of the present disclosure, an electronic device is provided. The electronic device includes the charging and discharging circuit provided in any one of FIG. 1 to FIG. 9 above.

图10是根据本公开第十实施例示出的一种车辆的框图，如图10所示，该车辆1000包括上述充放电电路100。FIG. 10 is a block diagram of a vehicle according to a tenth embodiment of the present disclosure. As shown in FIG. 10 , the vehicle 1000 includes the charging and discharging circuit 100 described above.

以上结合附图详细描述了本公开的优选实施方式，但是，本公开并不限于上述实施方式中的具体细节，在本公开的技术构思范围内，可以对本公开的技术方案进行多种简单变型，这些简单变型均属于本公开的保护范围。The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合，为了避免不必要的重复，本公开对各种可能的组合方式不再另行说明。It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

此外，本公开的各种不同的实施方式之间也可以进行任意组合，只要其不违背本公开的思想，其同样应当视为本公开所公开的内容。In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims (13)

1. A charge-discharge circuit is characterized by comprising a controller, a charge-discharge interface connected with the controller, a battery module, a first motor electric control assembly, a second motor electric control assembly and a first switch, the first motor electric control assembly is connected with the second motor electric control assembly through the first switch, the first motor electric control assembly is also connected with the charge-discharge interface, the charge-discharge interface is suitable for being connected with target equipment, and the second motor electric control assembly is connected with the battery module;

The controller is used for controlling the first switch to be closed under the condition of receiving a charge-discharge request, and controlling the first motor electric control assembly and the second motor electric control assembly to form a charge path or a discharge path with the battery module and the target equipment according to the charge-discharge request;

the first motor electric control assembly comprises one or more first bridge arm conversion circuits, each first bridge arm conversion circuit comprises a first bridge arm and a first winding, the second motor electric control assembly comprises one or more second bridge arm conversion circuits, and each second bridge arm conversion circuit comprises a second bridge arm and a second winding;

For each first bridge arm conversion circuit, a first end of the first winding is connected with a midpoint of the first bridge arm, a second end of the first winding is connected with a first end of the first switch, and a converging end of the first bridge arm is connected with the charge-discharge interface;

For each second bridge arm conversion circuit, a first end of the second winding is connected with a midpoint of the second bridge arm, a second end of the second winding is connected with a second end of the first switch, and a converging end of the second bridge arm is connected with the battery module;

the controller is configured to determine at least one first target bridge arm conversion circuit from the one or more first bridge arm conversion circuits according to the charge and discharge request, determine at least one second target bridge arm conversion circuit from the one or more second bridge arm conversion circuits, control the first switch to be closed, and form a charging path or a discharging path with the battery module and the target device through the first target bridge arm conversion circuit, the second target bridge arm conversion circuit, and the first switch.

2. The charge and discharge circuit of claim 1, wherein the capacitor is configured to provide the charge and discharge voltage,

The controller is configured to control, in a first specified period of each control cycle, an upper leg of a first leg in the first target leg conversion circuit to be turned on and an upper leg of a second leg in the second target leg conversion circuit to be turned on when the charge-discharge request is a buck charge request, so as to form a first buck charge path between the target device and the upper leg of the first leg in the first target leg conversion circuit, a first winding in the first target leg conversion circuit, an upper leg of a second leg in the second target leg conversion circuit, a second winding in the second target leg conversion circuit, and the battery module, so that the target device charges the battery module.

3. The charge and discharge circuit according to claim 2, wherein,

The controller is further configured to control, in a second designated period of each control cycle, an upper leg of the first leg in the first target leg conversion circuit to be turned off, a lower leg of the first leg in the first target leg conversion circuit to be turned on, an upper leg of the second leg in the second target leg conversion circuit to be turned on, and a lower leg of the second leg in the second target leg conversion circuit to be turned off, so as to form a lower leg of the battery module and the first leg in the first target leg conversion circuit, a first winding in the first target leg conversion circuit, an upper leg of the second leg in the second target leg conversion circuit, and a second buck charging path between the first winding in the first target leg conversion circuit and the second winding in the second target leg conversion circuit, so that the battery module is charged by the first winding in the first target leg conversion circuit and the second winding in the second target leg conversion circuit.

4. The charge and discharge circuit of claim 1, wherein the capacitor is configured to provide the charge and discharge voltage,

The controller is configured to control, in a first preset time period of each control cycle, an upper leg of a first leg in the first target leg conversion circuit to be turned on and an upper leg of a second leg in the second target leg conversion circuit to be turned on when the charge-discharge request is a buck-discharge request, so as to form a first buck-discharge path between the target device and the upper leg of the first leg in the first target leg conversion circuit, a first winding in the first target leg conversion circuit, an upper leg of a second leg in the second target leg conversion circuit, a second winding in the second target leg conversion circuit, and the battery module, so that the battery module discharges the target device.

5. The charge and discharge circuit of claim 4, wherein the capacitor is configured to provide the capacitor with a voltage,

The controller is further configured to control, in a second preset period of each control cycle, an upper leg of a first leg of the first target leg conversion circuit to be turned on, a lower leg of the first target leg conversion circuit to be turned off, and an upper leg of a second leg of the second target leg conversion circuit to be turned on, so as to form a lower leg of the target device and the first leg of the first target leg conversion circuit, a first winding of the first target leg conversion circuit, an upper leg of the second target leg conversion circuit, and a second buck discharge path between the first winding of the first target leg conversion circuit and the second winding of the second target leg conversion circuit, so that the first winding of the first target leg conversion circuit and the second winding of the second target leg conversion circuit discharge the target device.

6. The charge and discharge circuit of claim 1, wherein the capacitor is configured to provide the charge and discharge voltage,

The controller is configured to control, in a first standby period of each control cycle, an upper leg of a first leg of the first target leg conversion circuits to be turned on and a lower leg of a second leg of the second target leg conversion circuits to be turned on when the charge-discharge request is a boost charge request, so as to form a first boost charge path between the target device and a first winding of the first leg of the first target leg conversion circuits, a first boost charge path between a lower leg of a second leg of the second target leg conversion circuits, and a first winding of the second target leg conversion circuits, and a second winding of the second target leg conversion circuits, so that the target device charges the first winding of the first target leg conversion circuits and the second winding of the second target leg conversion circuits.

7. The charge and discharge circuit of claim 6, wherein the capacitor is configured to provide the capacitor with a voltage,

The controller is further configured to control, in a second standby period of each control cycle, an upper leg of the first leg in the first target leg conversion circuit to be turned on, a lower leg of the first leg in the first target leg conversion circuit to be turned off, an upper leg of the second leg in the second target leg conversion circuit to be turned on, and a lower leg of the second leg in the second target leg conversion circuit to be turned off, so as to form the target device, the upper leg of the first leg in the first target leg conversion circuit, the first winding in the first target leg conversion circuit, the upper leg of the second leg in the second target leg conversion circuit, the second winding in the second target leg conversion circuit, and a second boost charging path between the battery modules, so that the target device, the first winding in the first target leg conversion circuit, and the second winding in the second target leg conversion circuit charge the battery modules.

8. The charge and discharge circuit of claim 1, wherein the capacitor is configured to provide the charge and discharge voltage,

The controller is configured to control, in a first set period of each control cycle, a lower leg of a first leg of the first target leg conversion circuit to be turned on and an upper leg of a second leg of the second target leg conversion circuit to be turned on when the charge-discharge request is a boost-discharge request, so as to form the battery module and the lower leg of the first target leg conversion circuit, a first winding of the first target leg conversion circuit, an upper leg of the second target leg conversion circuit, and a first boost-discharge path between the second winding of the second target leg conversion circuit, so that the battery module discharges the first winding of the first target leg conversion circuit and the second winding of the second target leg conversion circuit.

9. The charge and discharge circuit of claim 8, wherein the capacitor is configured to provide the capacitor with a voltage,

The controller is further configured to control, in a second set period of each control cycle, an upper leg of a first leg in the first target leg conversion circuit to be turned on, a lower leg of the first leg in the first target leg conversion circuit to be turned off, an upper leg of a second leg in the second target leg conversion circuit to be turned on, and a lower leg of the second leg in the second target leg conversion circuit to be turned off, so as to form the battery module and an upper leg of the first leg in the first target leg conversion circuit, a first winding in the first target leg conversion circuit, an upper leg of a second leg in the second target leg conversion circuit, a second winding in the second target leg conversion circuit, and a second boost discharge path between the target devices, so that the battery module, the first winding in the first target leg conversion circuit, and the second winding in the second target leg conversion circuit discharge the target devices.

10. The charge and discharge circuit of claim 1 further comprising a second switch, one end of the second switch being connected to the charge and discharge interface, the other end of the second switch being connected to the battery module,

The controller is configured to obtain a current temperature of the battery module, and control the second switch to be turned off in a first duration period of each control period when the current temperature is less than or equal to a preset temperature threshold, wherein a lower bridge arm of a first bridge arm in the first target bridge arm conversion circuit is turned on, and an upper bridge arm of a second bridge arm in the second target bridge arm conversion circuit is turned on to form a first winding of the battery module and the first bridge arm in the first target bridge arm conversion circuit, and a first self-heating path between an upper bridge arm of the second bridge arm in the second target bridge arm conversion circuit and the second winding in the second target bridge arm conversion circuit heats the battery module.

11. The charge and discharge circuit of claim 10, wherein the capacitor is configured to provide the charge and discharge voltage,

The controller is further configured to control, in a second duration period of each control cycle, the second switch to be closed, and control an upper leg of a first leg of the first target leg conversion circuit to be turned on, a lower leg of the first target leg conversion circuit to be turned off, and an upper leg of a second leg of the second target leg conversion circuit to be turned off, and a lower leg of the second target leg conversion circuit to be turned on, so as to form an upper leg of the battery module and the first leg of the first target leg conversion circuit, a first winding of the first target leg conversion circuit, a lower leg of the second target leg conversion circuit, and a second self-heating path between the second windings of the second target leg conversion circuit, to heat the battery module.

12. An electronic device, comprising: a charge-discharge circuit according to any one of claims 1to 11.

13. A vehicle, characterized in that the vehicle comprises: a charge-discharge circuit according to any one of claims 1 to 11.