技术领域Technical Field
本发明涉及电动商用车充放电技术领域，尤其涉及一种电动商用车车载充放电控制系统。The present invention relates to the technical field of charging and discharging of electric commercial vehicles, and in particular to an on-board charging and discharging control system for an electric commercial vehicle.
背景技术Background technique
当下轻卡配置的交流慢充电，即单相交流220V充电，主要配置为高压盒集成慢充OBC+充电插座+充电枪的模式，一般情况下并无慢充放电功能；即使存在慢充放电功能，现有方式不仅需要配置放电枪头，还需要配置外置电源供给外置慢充控制器(充电桩)使用，不仅硬件成本高，且对终端用户的使用要求也较高。The current AC slow charging of light trucks, that is, single-phase AC 220V charging, is mainly configured in a mode of high-voltage box integrated slow charging OBC + charging socket + charging gun. Generally, there is no slow charging and discharging function; even if there is a slow charging and discharging function, the existing method requires not only a discharge gun head, but also an external power supply for the external slow charging controller (charging pile). Not only is the hardware cost high, but also the requirements for end users are high.
展开来说，现有的电动轻卡慢充方案需要使用慢充枪头和交流充电桩+外置电源，并且慢充放电方案也同样需要使用放电枪头和放电插头，有些场合还需要配置放电控制器，导致整个慢充放电系统复杂，用户使用起来也不方便。To elaborate, the existing slow charging solution for electric light trucks requires the use of a slow charging gun head and an AC charging pile + external power supply, and the slow charging and discharging solution also requires the use of a discharge gun head and a discharge plug. In some cases, a discharge controller is also required, which makes the entire slow charging and discharging system complicated and inconvenient for users to use.
发明内容Summary of the invention
鉴于上述，本发明旨在提供一种电动商用车车载充放电控制系统，以解决前述提及的技术问题。In view of the above, the present invention aims to provide an on-board charging and discharging control system for an electric commercial vehicle to solve the above-mentioned technical problems.
本发明采用的技术方案如下：The technical solution adopted by the present invention is as follows:
本发明提供了一种电动商用车车载充放电控制系统，其中包括：电池包、高压配电盒、慢充插座、整车控制器、慢充车载控制器以及蓄电池；The present invention provides an on-board charging and discharging control system for an electric commercial vehicle, comprising: a battery pack, a high-voltage distribution box, a slow-charging socket, a vehicle controller, a slow-charging on-board controller and a battery;
所述电池包与所述高压配电盒采用直流母线连接，所述高压配电盒通过交流母线与所述慢充插座连接；The battery pack is connected to the high-voltage distribution box by a DC bus, and the high-voltage distribution box is connected to the slow-charging socket by an AC bus;
所述慢充车载控制器的交流端口与所述慢充插座连接，所述慢充车载控制器的直流端口通过继电器的触点与所述蓄电池连接，且所述高压配电盒与所述蓄电池连接；The AC port of the slow charging vehicle-mounted controller is connected to the slow charging socket, the DC port of the slow charging vehicle-mounted controller is connected to the battery through the contacts of the relay, and the high-voltage distribution box is connected to the battery;
所述慢充车载控制器配置有单相交流充电口、单相交流放电口、CAN总线接口；The slow charging vehicle controller is equipped with a single-phase AC charging port, a single-phase AC discharging port, and a CAN bus interface;
所述整车控制器、所述高压配电盒以及所述慢充车载控制器通过CAN总线连接。The vehicle controller, the high-voltage distribution box and the slow-charging vehicle controller are connected via a CAN bus.
在其中至少一种可能的实现方式中，所述单相交流充电口为220VAC充电口，所述单相交流放电口为220VAC放电口。In at least one possible implementation, the single-phase AC charging port is a 220VAC charging port, and the single-phase AC discharging port is a 220VAC discharging port.
在其中至少一种可能的实现方式中，所述单相交流充电口为可缩式插头。In at least one possible implementation, the single-phase AC charging port is a retractable plug.
在其中至少一种可能的实现方式中，所述慢充插座内集成有与所述整车控制器连接的温度传感器，用于测量交流母线中的L线温度。In at least one possible implementation, a temperature sensor connected to the vehicle controller is integrated in the slow charging socket to measure the temperature of the L line in the AC bus.
在其中至少一种可能的实现方式中，所述慢充插座内还设有与所述整车控制器连接的检测线缆，用于检测慢充枪头是否与慢充插座连接。In at least one possible implementation, the slow charging socket is further provided with a detection cable connected to the vehicle controller for detecting whether the slow charging gun head is connected to the slow charging socket.
在其中至少一种可能的实现方式中，所述慢充车载控制器的直流端口通过继电器的触点及保险丝与所述蓄电池连接。In at least one possible implementation, the DC port of the slow-charging on-board controller is connected to the battery through contacts of a relay and a fuse.
与现有技术相比，本发明的主要设计构思在于，由电池包、高压配电盒、慢充插座、整车控制器、慢充车载控制器及蓄电池构成，电池包与高压配电盒连接，高压配电盒与慢充插座连接；慢充车载控制器的交流端口与慢充插座连接，其直流端口通过继电器触点与蓄电池连接，且高压配电盒还与蓄电池连接；慢充车载控制器上集成有交流充放电口，整车控制器、高压配电盒及慢充车载控制器通过CAN总线连接。本发明解决了传统插枪充放电的缺陷，实现了用户随用随充，无需提前准备充放电枪头，此外随车配置慢充控制器以代替充电桩(额外配置的慢充控制器)，空间布置更加紧凑，不仅提高了充放电效率，节约用户使用时间，还极大地降低了配置大量硬件的成本，同时在某些场合也解决了需要配置放电控制器的技术问题。经实测，本发明较传统慢充方案的充放电效率可提升80％。Compared with the prior art, the main design concept of the present invention is that it is composed of a battery pack, a high-voltage distribution box, a slow-charging socket, a vehicle controller, a slow-charging on-board controller and a battery. The battery pack is connected to the high-voltage distribution box, and the high-voltage distribution box is connected to the slow-charging socket; the AC port of the slow-charging on-board controller is connected to the slow-charging socket, and its DC port is connected to the battery through a relay contact, and the high-voltage distribution box is also connected to the battery; the slow-charging on-board controller is integrated with an AC charging and discharging port, and the vehicle controller, the high-voltage distribution box and the slow-charging on-board controller are connected through a CAN bus. The present invention solves the defects of traditional plug-in gun charging and discharging, and enables users to charge as they use, without the need to prepare charging and discharging gun heads in advance. In addition, a slow-charging controller is configured on the vehicle to replace the charging pile (an additionally configured slow-charging controller), and the space layout is more compact, which not only improves the charging and discharging efficiency and saves user time, but also greatly reduces the cost of configuring a large amount of hardware, and at the same time solves the technical problem of needing to configure a discharge controller in some occasions. According to actual measurements, the charging and discharging efficiency of the present invention can be increased by 80% compared with the traditional slow-charging solution.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步描述，其中：In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described below with reference to the accompanying drawings, in which:
图1为本发明实施例提供的电动商用车车载充放电控制系统的示意图。FIG1 is a schematic diagram of an on-board charging and discharging control system for an electric commercial vehicle provided in an embodiment of the present invention.
具体实施方式Detailed ways
下面详细描述本发明的实施例，实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能解释为对本发明的限制。Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.
本发明提出了一种电动商用车车载充放电控制系统的实施例，具体来说，如图1所示，其中包括：电池包、高压配电盒、慢充插座、整车控制器(VCU)、慢充车载控制器以及蓄电池；The present invention proposes an embodiment of an on-board charging and discharging control system for an electric commercial vehicle, specifically, as shown in FIG1 , the control system includes: a battery pack, a high-voltage distribution box, a slow-charging socket, a vehicle controller (VCU), a slow-charging on-board controller, and a battery;
所述电池包与所述高压配电盒采用直流母线连接，所述高压配电盒通过交流母线与所述慢充插座连接；The battery pack is connected to the high-voltage distribution box by a DC bus, and the high-voltage distribution box is connected to the slow-charging socket by an AC bus;
所述慢充车载控制器的交流端口与所述慢充插座连接，所述慢充车载控制器的直流端口通过继电器K1(在实际操作中，可由整车控制器、慢充车载控制器或电池管理系统等予以控制)的触点、保险丝FU与所述蓄电池连接，且所述高压配电盒与所述蓄电池连接，所述蓄电池为所述慢充车载控制器提供直流电源，所述高压配电盒用于为所述蓄电池充电。The AC port of the slow charging vehicle controller is connected to the slow charging socket, and the DC port of the slow charging vehicle controller is connected to the battery through the contacts of relay K1 (in actual operation, it can be controlled by the vehicle controller, slow charging vehicle controller or battery management system, etc.) and fuse FU, and the high-voltage distribution box is connected to the battery. The battery provides a DC power supply for the slow charging vehicle controller, and the high-voltage distribution box is used to charge the battery.
对此可以展开来说，所述继电器K1为慢充车载控制器的电源继电器，当需要充放电时，此时K1继电器吸合，蓄电池为慢充车载控制器提供电源维持到电池包充满电；在蓄电池电压达到欠压状态，需要及时补充电源时，继电器K1断开，高压配电盒内部原有的继电器吸合，开始为蓄电池充电，直到蓄电池充满电；可以理解地，保险丝FU起到防止短路和过载的作用，用以保护慢充车载控制器。To elaborate on this, the relay K1 is the power relay of the slow charging vehicle controller. When charging and discharging are required, the K1 relay is energized, and the battery provides power to the slow charging vehicle controller until the battery pack is fully charged; when the battery voltage reaches an undervoltage state and power needs to be replenished in time, the relay K1 is disconnected, and the original relay inside the high-voltage distribution box is energized to start charging the battery until the battery is fully charged; it can be understood that the fuse FU plays a role in preventing short circuits and overloads to protect the slow charging vehicle controller.
接续前文，所述慢充车载控制器配置有单相交流充电口、单相交流放电口、CAN总线接口等，在一些较佳的实施例中，单相交流充电口为220VAC充电口、单相交流放电口为220VAC放电口，并且进一步地，充电口优选采用可缩式插头，代替传统家用插排和插头，用户使用更为安全；Continuing from the above, the slow charging vehicle controller is equipped with a single-phase AC charging port, a single-phase AC discharge port, a CAN bus interface, etc. In some preferred embodiments, the single-phase AC charging port is a 220VAC charging port, and the single-phase AC discharge port is a 220VAC discharge port. Furthermore, the charging port preferably adopts a retractable plug to replace the traditional household socket strip and plug, which is safer for users to use;
所述整车控制器、所述高压配电盒以及所述慢充车载控制器通过CAN总线连接，通过CAN总线可发送蓄电池低压指令至高压配电盒，以便及时为蓄电池充电。The vehicle controller, the high-voltage distribution box and the slow-charging vehicle controller are connected via a CAN bus, and a battery low-voltage instruction can be sent to the high-voltage distribution box via the CAN bus so as to charge the battery in time.
可以补充的是，所述慢充插座内集成有NTC温度传感器，用于测量交流母线中的L线温度，当在充放电过程中L线温度过高时，NTC采集温度反馈至VCU，便可以由VCU发送指令至慢充车载控制器，进而使慢充车载控制器发送指令至高压配电盒以降低充放电流，从而降低温度。It can be added that the slow charging socket is integrated with an NTC temperature sensor, which is used to measure the temperature of the L line in the AC bus. When the temperature of the L line is too high during the charging and discharging process, the NTC collects the temperature and feeds it back to the VCU, which can then send instructions to the slow charging vehicle controller, and then the slow charging vehicle controller sends instructions to the high-voltage distribution box to reduce the charging and discharging current, thereby reducing the temperature.
所述慢充插座内还设有与所述整车控制器连接的检测线缆(图示中的CP、CC低压线)，用于检测慢充枪头是否与慢充插座连接。The slow charging socket is also provided with a detection cable (CP and CC low-voltage lines in the figure) connected to the vehicle controller, which is used to detect whether the slow charging gun head is connected to the slow charging socket.
最后再对基于上述充放电系统方案的工作方式做如下说明：Finally, the working mode based on the above-mentioned charging and discharging system scheme is described as follows:
(1)220VAC充放电控制策略(1) 220VAC charging and discharging control strategy
整车上低压电后唤醒VCU并建立CAN通信，触发高压配电盒内的原有继电器K2断开，检测继电器K1是否吸合，确定吸合后电池管理系统内的原继电器动作，开始执行充放电，在整个充放电流程中，充放电枪可以一直连接慢充插座，无需自备和更换充电枪头和放电枪头。After the vehicle is powered on at low voltage, the VCU is awakened and CAN communication is established, triggering the original relay K2 in the high-voltage distribution box to disconnect, detecting whether relay K1 is energized, and after confirming that it is energized, the original relay in the battery management system is actuated to start charging and discharging. During the entire charging and discharging process, the charging and discharging guns can be always connected to the slow charging socket, without the need to prepare and replace the charging gun heads and discharging gun heads.
(2)为蓄电池充电和断电策略(2) Battery charging and power-off strategies
整车上低压电后唤醒VCU并建立CAN通信，触发高压配电盒内的原有继电器K2闭合，检测继电器K1是否断开，确定断开后电池管理系统内的原继电器动作，开始为蓄电池充电，直至达到报警电压值后，断开K2以结束蓄电池充电流程。After the vehicle is powered on by low voltage, the VCU is awakened and CAN communication is established, triggering the original relay K2 in the high-voltage distribution box to close, detecting whether relay K1 is disconnected, and after determining whether it is disconnected, the original relay in the battery management system is actuated to start charging the battery. After reaching the alarm voltage value, K2 is disconnected to end the battery charging process.
综上所述，本发明的主要设计构思在于，由电池包、高压配电盒、慢充插座、整车控制器、慢充车载控制器及蓄电池构成，电池包与高压配电盒连接，高压配电盒与慢充插座连接；慢充车载控制器的交流端口与慢充插座连接，其直流端口通过继电器触点与蓄电池连接，且高压配电盒还与蓄电池连接；慢充车载控制器上集成有交流充放电口，整车控制器、高压配电盒及慢充车载控制器通过CAN总线连接。本发明解决了传统插枪充放电的缺陷，实现了用户随用随充，无需提前准备充放电枪头，此外随车配置慢充控制器以代替充电桩(额外配置的慢充控制器)，空间布置更加紧凑，不仅提高了充放电效率，节约用户使用时间，还极大地降低了配置大量硬件的成本，同时在某些场合也解决了需要配置放电控制器的技术问题。In summary, the main design concept of the present invention is that it is composed of a battery pack, a high-voltage distribution box, a slow-charging socket, a vehicle controller, a slow-charging on-board controller and a battery. The battery pack is connected to the high-voltage distribution box, and the high-voltage distribution box is connected to the slow-charging socket; the AC port of the slow-charging on-board controller is connected to the slow-charging socket, and its DC port is connected to the battery through a relay contact, and the high-voltage distribution box is also connected to the battery; the slow-charging on-board controller is integrated with an AC charging and discharging port, and the vehicle controller, the high-voltage distribution box and the slow-charging on-board controller are connected through a CAN bus. The present invention solves the defects of traditional plug-in gun charging and discharging, and enables users to charge as needed without preparing charging and discharging gun heads in advance. In addition, a slow-charging controller is configured on the vehicle to replace the charging pile (an additionally configured slow-charging controller), and the space layout is more compact, which not only improves the charging and discharging efficiency and saves user time, but also greatly reduces the cost of configuring a large amount of hardware. At the same time, it also solves the technical problem of needing to configure a discharge controller in some occasions.
本发明实施例中若提及表达方位的措辞，则是基于实施例的相对概念，此外“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示单独存在A、同时存在A和B、单独存在B的情况。其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项”及其类似表达，是指的这些项中的任意组合，包括单项或复数项的任意组合。例如，a，b和c中的至少一项可以表示：a，b，c，a和b，a和c，b和c或a和b和c，其中a，b，c可以是单个，也可以是多个。If the expressions of expression direction are mentioned in the embodiments of the present invention, they are relative concepts based on the embodiments. In addition, "at least one" means one or more, and "more than one" means two or more. "And/or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. Among them, A and B can be singular or plural. The character "/" generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can be represented by: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c can be single or multiple.
以上依据图式所示的实施例详细说明了本发明的构造、特征及作用效果，但以上仅为本发明的较佳实施例，需要言明的是，上述实施例及其优选方式所涉及的技术特征，本领域技术人员可以在不脱离、不改变本发明的设计思路以及技术效果的前提下，合理地组合搭配成多种等效方案；因此，本发明不以图面所示限定实施范围，凡是依照本发明的构想所作的改变，或修改为等同变化的等效实施例，仍未超出说明书与图示所涵盖的精神时，均应在本发明的保护范围内。The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings, but the above is only a preferred embodiment of the present invention. It should be noted that the technical features involved in the above embodiments and their preferred methods can be reasonably combined and matched into a variety of equivalent schemes by those skilled in the art without departing from or changing the design ideas and technical effects of the present invention; therefore, the present invention is not limited to the scope of implementation shown in the drawings, and all changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410717503.4ACN118418788A (en) | 2024-06-04 | 2024-06-04 | Electric commercial vehicle on-board charging and discharging control system |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410717503.4ACN118418788A (en) | 2024-06-04 | 2024-06-04 | Electric commercial vehicle on-board charging and discharging control system |
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| CN118418788Atrue CN118418788A (en) | 2024-08-02 |
| Application Number | Title | Priority Date | Filing Date |
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| CN202410717503.4APendingCN118418788A (en) | 2024-06-04 | 2024-06-04 | Electric commercial vehicle on-board charging and discharging control system |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |