CN101376337B - Cooling system for hybrid power automobile and control method thereof - Google Patents
Cooling system for hybrid power automobile and control method thereofDownload PDFInfo
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本发明涉及一种冷却系统和控制方法，更具体地，涉及一种混合动力汽车的冷却系统及其控制方法。The present invention relates to a cooling system and a control method, more particularly, to a cooling system and a control method of a hybrid electric vehicle.
背景技术Background technique
现有的混合动力汽车的冷却系统通常包括：电动部分散热器，用于使冷却电动部分的冷却水与空气进行热交换，以冷却这部分冷却水；发动机散热器，用于使冷却发动机的冷却水与空气进行热交换，以冷却这部分冷却水；冷凝器，用于使空调中的高温制冷剂与空气进行热交换，以冷却所述制冷剂。所述电动部分为与电动机的控制相关的电动部分，例如电机控制器、空调控制器等。所述冷却系统还包括冷凝风扇和冷却风扇，分别用于降低所述冷凝器和发动机散热器的入口温度，以提高所述发动机散热器和冷凝器的性能。The cooling system of the existing hybrid electric vehicle usually includes: an electric part radiator, which is used to exchange heat between the cooling water and air for cooling the electric part, to cool this part of the cooling water; an engine radiator, which is used to cool the cooling engine The water exchanges heat with the air to cool this part of the cooling water; the condenser is used to exchange heat between the high-temperature refrigerant in the air conditioner and the air to cool the refrigerant. The electric part is an electric part related to the control of the electric motor, such as a motor controller, an air conditioner controller, and the like. The cooling system also includes a condensing fan and a cooling fan, respectively used to reduce the inlet temperature of the condenser and the engine radiator, so as to improve the performance of the engine radiator and the condenser.
正常情况下，为了将电动部分、发动机和制冷剂冷却至合适的温度，所述电动部分散热器中循环的用于冷却电动部分的冷却水的温度应该保持在50℃以下，所述冷凝器中制冷剂的温度应该在60℃左右，而所述发动机散热器中循环的用于冷却发动机的冷却水的温度应该保持在98℃以下。因此，正常情况下，所述电动部分散热器所需的功率最小，只需要通过汽车行驶所产生的自然风就可以满足电动部分散热器；而在自然风冷却无法满足正常需求的情况下可以通过控制冷凝风扇和冷却风扇以满足冷却系统的需要。现有技术中，冷却控制器(ECU)分别根据电动部分冷却水的温度和发动机散热器中冷却液的温度来分别控制冷凝风扇和冷却风扇以满足整个冷却系统的要求。Under normal circumstances, in order to cool the electric part, the engine and the refrigerant to a suitable temperature, the temperature of the cooling water circulating in the radiator of the electric part for cooling the electric part should be kept below 50°C, and the temperature of the cooling water in the condenser The temperature of the refrigerant should be around 60°C, while the temperature of the cooling water circulating in the engine radiator for cooling the engine should be kept below 98°C. Therefore, under normal circumstances, the power required by the radiator of the electric part is the smallest, and only the natural wind generated by the running of the car can satisfy the radiator of the electric part; Controls condensing fans and cooling fans to meet cooling system needs. In the prior art, the cooling controller (ECU) controls the condensation fan and the cooling fan respectively according to the temperature of the cooling water of the electric part and the temperature of the coolant in the engine radiator to meet the requirements of the entire cooling system.
现有技术中的冷却系统虽然可以达到冷却电动部分和发动机的目的，但其只能分别根据电动部分冷却水的温度值和发动机散热器中冷却液的温度值分别控制冷凝风扇和冷却风扇，这种分开控制的方式由于未能考虑整车的状态，可能会造成冷却风扇和冷凝风扇不必要的开启的情形下开启，从而造成功耗的浪费。Although the cooling system in the prior art can achieve the purpose of cooling the electric part and the engine, it can only control the condensing fan and the cooling fan respectively according to the temperature value of the cooling water of the electric part and the temperature value of the coolant in the engine radiator. This separate control method fails to consider the state of the vehicle, which may cause the cooling fan and the condensing fan to be turned on when they are not turned on unnecessarily, resulting in waste of power consumption.
发明内容Contents of the invention
本发明的目的是为了克服现有技术的冷却系统控制方式可能造成功耗浪费的缺陷，提供了一种在能够满足冷却系统的需要的基础上降低整车功耗的冷却系统及其控制方法。The purpose of the present invention is to overcome the defect that the cooling system control method in the prior art may cause waste of power consumption, and provide a cooling system and a control method thereof that can reduce the power consumption of the entire vehicle on the basis of meeting the needs of the cooling system.
本发明提供一种混合动力汽车的冷却系统，所述冷却系统包括具有空调控制器的空调、具有温度传感器的电动部分散热器、发动机散热器、冷凝风扇和冷却风扇，所述冷凝风扇和冷却风扇分别用于降低空调中冷凝器和发动机散热器的入口处的温度，其中，所述冷却系统还包括冷却控制器，所述冷却控制器分别与空调控制器、电动部分散热器中的温度传感器、冷却风扇和冷凝风扇电连接，所述冷却控制器同时根据空调控制器发送的空调工作方式、温度传感器感测的电动部分散热器中冷却液的温度值或空调控制器发送的外部温度值、发动机散热器中冷却液的温度值和发动机工作状态，控制冷却风扇和冷凝风扇的工作。The invention provides a cooling system for a hybrid electric vehicle, the cooling system includes an air conditioner with an air conditioner controller, an electric radiator with a temperature sensor, an engine radiator, a condensation fan and a cooling fan, the condensation fan and the cooling fan They are respectively used to reduce the temperature at the inlet of the condenser in the air conditioner and the engine radiator, wherein the cooling system also includes a cooling controller, and the cooling controller communicates with the air conditioner controller, the temperature sensor in the radiator of the electric part, The cooling fan is electrically connected to the condensing fan, and the cooling controller is simultaneously based on the air-conditioning working mode sent by the air-conditioning controller, the temperature value of the coolant in the radiator of the electric part sensed by the temperature sensor or the external temperature value sent by the air-conditioning controller, the engine The temperature value of the coolant in the radiator and the working state of the engine control the work of the cooling fan and the condensing fan.
本发明还提供一种用于混合动力汽车冷却系统的控制方法包括以下步骤：获取发动机的工作状态和空调的工作方式；采集电动部分散热器中冷却液的温度或获取外部温度；获取发动机散热器中冷却液的温度；其特征在于，还包括以下步骤：同时根据电动部分散热器中冷却液的温度值、发动机散热器中冷却液的温度值或外部温度值、发动机是否处于工作状态和空调是否处于制冷状态，控制冷却风扇和冷凝风扇的工作。The present invention also provides a control method for the cooling system of a hybrid electric vehicle, which includes the following steps: obtaining the working state of the engine and the working mode of the air conditioner; collecting the temperature of the coolant in the radiator of the electric part or obtaining the external temperature; obtaining the temperature of the engine radiator It is characterized in that it also includes the following steps: at the same time according to the temperature value of the coolant in the radiator of the electric part, the temperature value of the coolant in the engine radiator or the external temperature value, whether the engine is in working condition and whether the air conditioner In cooling state, control the work of cooling fan and condensing fan.
在使用本发明提供的混合动力汽车的冷却系统及其控制方法时，冷却系统中的冷却控制器同时根据电动部分散热器中冷却液的温度值和发动机散热器中冷却液的温度值来联合控制冷却风扇和冷凝风扇，而不是如现有技术中分开控制，这样通过综合考虑整个混合动力汽车中各部分的温度状态，使整个控制过程更加细化，可以在满足冷却系统需求的前提下使功耗最小。而且在当电动部分散热器中的温度传感器损坏时，本发明提供的冷却系统及其控制方法仍可以实现对混合动力汽车的散热。When using the cooling system and control method of the hybrid electric vehicle provided by the present invention, the cooling controller in the cooling system jointly controls the temperature value of the cooling liquid in the radiator of the electric part and the temperature value of the cooling liquid in the radiator of the engine The cooling fan and the condensing fan are not controlled separately as in the prior art. In this way, by comprehensively considering the temperature state of each part in the entire hybrid electric vehicle, the entire control process is more detailed, and the power can be made on the premise of meeting the requirements of the cooling system. Minimal consumption. And when the temperature sensor in the radiator of the electric part is damaged, the cooling system and the control method thereof provided by the invention can still realize the heat dissipation of the hybrid electric vehicle.
附图说明Description of drawings
图1为本发明提供的混合动力汽车的冷却系统的框图；Fig. 1 is the block diagram of the cooling system of hybrid electric vehicle provided by the present invention;
图2为本发明提供的混合动力汽车的冷却控制方法的流程图；Fig. 2 is the flowchart of the cooling control method of the hybrid electric vehicle provided by the present invention;
图3为本发明提供的混合动力汽车中检测温度传感器的流程图；Fig. 3 is the flow chart of detection temperature sensor in the hybrid electric vehicle provided by the present invention;
图4为本发明提供的当温度传感器损坏时混合动力汽车的冷却控制方法的流程图。Fig. 4 is a flow chart of the cooling control method of the hybrid electric vehicle when the temperature sensor is damaged provided by the present invention.
具体实施方式Detailed ways
下面参考附图详细描述本发明。The present invention will be described in detail below with reference to the accompanying drawings.
如图1所示，本发明所提供的用于混合动力汽车冷却系统的控制方法包括以下步骤：获取发动机的工作状态和空调1的工作方式；采集电动部分散热器2中冷却液的温度或获取外部温度；获取发动机散热器3中冷却液的温度；其特征在于，还包括以下步骤，同时根据电动部分散热器2中冷却液的温度值或外部温度值、发动机散热器3中冷却液的温度值、发动机是否处于工作状态和空调1是否处于制冷状态，控制冷却风扇5和冷凝风扇4的工作。As shown in Figure 1, the control method for the hybrid vehicle cooling system provided by the present invention includes the following steps: obtaining the working state of the engine and the working mode of the
所述方法中获取发动机的工作状态和空调的工作方式的步骤可以通过从发送机中的发动机的控制器(未图示)中获取发动机是否处于工作状态的信息，以及从空调控制器中获取空调1是否处于制冷状态的信息而完成。检测发动机是否处于工作状态也可以通过检测发动机点火线圈的点火信号实现。In the step of obtaining the working state of the engine and the working mode of the air conditioner in the method, the information of whether the engine is in the working state can be obtained from the engine controller (not shown) in the transmitter, and the air conditioner can be obtained from the air conditioner controller. 1 is completed by the information of whether it is in the cooling state. Detecting whether the engine is in working condition can also be realized by detecting the ignition signal of the engine ignition coil.
所述方法中采集电动部分散热器2中冷却液的温度或外部温度步骤中，电动部分散热器2中冷却液的温度可以通过电动部分散热器2中的温度传感器测得，而外部温度可以通过空调中的空调控制器获得。所述方法中获取发动机散热器3中冷却液的温度的步骤中，发动机散热器3中冷却液的温度则可以从发动机的控制器获得。In the method, in the step of collecting the temperature of the cooling liquid in the
获得上述电动部分散热器2中冷却液的温度值或外部温度值、发动机散热器3中冷却液的温度值、发动机是否处于工作状态和空调是否处于制冷状态的四个参数后，本发明提供了根据这些参数来分别控制冷凝风扇4和冷却风扇5的方法。After obtaining the temperature value or the external temperature value of the cooling liquid in the
由于当发动机处于启动状态或者空调1处于制冷状态时，冷凝风扇4会一直处于开启状态，此时不需要对冷凝风扇4进行控制，而当发动机处于关闭状态且空调1处于非制冷状态时，冷凝风扇4会处于关闭状态，此时需要对冷凝风扇4进行控制以适时开启从而满足冷却需求，而且对冷却风扇5的控制也会有所不同。Because when the engine is in the starting state or the
控制冷却风扇5的方法为：(1)当发动机处于启动状态或空调1处于制冷状态时：如果电动部分散热器2中冷却液的温度值处于冷却液的低温区时，则只有当发动机散热器3中冷却液的温度值大于或等于92度时，才控制冷却风扇5开启，否则控制冷却风扇5关闭；如果电动部分散热器2中冷却液的温度值处于在冷却液的中温区或在冷却液的高温区时，则控制冷却风扇5开启；(2)当发动机处于关闭状态且空调1处于非制冷状态时：如果电动部分散热器2中冷却液的温度值处于冷却液的低温区时，则只有当发动机散热器3中冷却液的温度值大于或等于98度时，控制冷却风扇5开启，否则控制冷却风扇5关闭；如果电动部分散热器2中冷却液的温度值处于冷却液的中温区或在冷却液的高温区时，则控制冷却风扇5开启。通过使用该控制方法控制冷却风扇5，可以在满足混合动力汽车中各部分的冷却需求的前提下科学地控制冷却风扇5的开关，从而降低功耗。The method of controlling the cooling fan 5 is: (1) when the engine is in the starting state or the
优选地，所述控制冷却风扇5的方法还包括：当电动部分散热器2中冷却液的温度值处于高温区或者发动机散热器3中冷却液的温度值大于或等于98度时，控制冷却风扇5高档开启；如果电动部分散热器2中冷却液的温度值处于在冷却液的中温区且发动机散热器3中冷却液的温度值小于98度时，控制冷却风扇5低档开启；当发动机处于启动状态或空调1处于制冷状态时，如果电动部分散热器2中冷却液的温度值处于冷却液的低温区时，则当发动机散热器3中冷却液的温度值大于或等于92且小于98度时，则控制冷却风扇5低档开启。这样对冷却风扇5在开启状态下的运行模式作了更加细致的控制，从而使功耗变得更加低。Preferably, the method for controlling the cooling fan 5 further includes: when the temperature value of the coolant in the
因此，如图2所示，根据优选实施方式，所述控制冷却风扇5的方法为：Therefore, as shown in Figure 2, according to a preferred embodiment, the method for controlling the cooling fan 5 is:
(1)当发动机处于启动状态或空调1处于制冷状态时：(1) When the engine is in the starting state or the
(a)如果电动部分散热器2中冷却液的温度值处于冷却液的低温区时，则当发动机散热器3中冷却液的温度值大于或等于98度时，控制冷却风扇5高档开启；当发动机散热器3中冷却液的温度值大于或等于92度时且小于98度时，控制冷却风扇5低档开启；否则，控制冷却风扇5关闭；(a) If the temperature value of the cooling liquid in the
(b)如果电动部分散热器2中冷却液的温度值处于冷却液的中温区时，则当发动机散热器3中冷却液的温度值大于或等于98度时，控制冷却风扇5高档开启；否则，控制冷却风扇5低档开启；(b) If the temperature value of the coolant in the
(c)如果电动部分散热器2中冷却液的温度值处于冷却液的高温区时，则控制冷却风扇5高档开启。(c) If the temperature value of the coolant in the
(2)当发动机处于关闭状态且空调1处于非制冷状态时：(2) When the engine is off and the
(a)如果电动部分散热器2中冷却液的温度值处于冷却液的低温区时，则当发动机散热器3中冷却液的温度值大于或等于98度时，控制冷却风扇5高档开启；否则，控制冷却风扇5关闭；(a) If the temperature value of the coolant in the
(b)如果电动部分散热器2中冷却液的温度值处于冷却液的中温区时，则当发动机散热器3中冷却液的温度值大于或等于98度时，控制冷却风扇5高档开启；否则，控制冷却风扇5低档开启；(b) If the temperature value of the coolant in the
(c)如果电动部分散热器2中冷却液的温度值处于在冷却液的高温区时，则控制冷却风扇5高档开启。(c) If the temperature value of the coolant in the
为了防止因为电动部分冷却液的温度值变化过于频繁而导致所采用的控制方式不断改变，所述控制方法还包括当电动部分散热器2中冷却液的温度值在冷却液的低温区与冷却液的中温区之间、冷却液的中温区与冷却液的高温区之间的两个中间区时，如果是在初始控制时，即未对冷却风扇5应用所述控制方法时，选择与当前电动部分散热器2中冷却液的温度值最靠近的温度区间所对应的控制方法来控制冷却风扇5；如果在初始控制之后，则继续沿用温度值变化之前使用的控制方法来控制冷却风扇5。所述冷却液的低温区为温度值小于或等于30度的区间；所述在冷却液的中温区为温度值处于32～39度的区间；所述在冷却液的高温区为温度值大于或等于42度的区间。In order to prevent the adopted control method from changing continuously because the temperature value of the cooling liquid of the electric part changes too frequently, the control method also includes that when the temperature value of the cooling liquid in the
通过温度传感器获得电动部分散热器2中冷却液的温度值的过程是为本领域人员所公知的，其中温度传感器位于电动部分散热器中，可以选用热电耦、热敏电阻式等类型的温度传感器。由于温度传感器有可能在工作过程中损坏，因此，本发明还提供了用于检测温度传感器是否正常工作的辅助步骤——温度传感器检测步骤，所述步骤包括：接收该温度传感器发出的温度值，并判断该温度值是否一段时间(例如30秒)不在预计温度范围(-20～65度之间)之间，如果是，则确定该温度传感器损坏。如图3所示，温度传感器检测步骤的一个具体实施方式的具体步骤包括：接收温度传感器发出的温度值，并判断该温度值是否在预计温度范围内，如果不在所述范围，则开始计时，并继续接收温度传感器发出的温度值，如果该温度值在预计温度范围内，则计时清零，如果不在预计温度范围内，则继续计时，并判断所计时间是否大于30秒，如果大于30秒，则确定温度传感器损坏。当确定温度传感器损坏时，如图4所示，所述方法还可以基于空调1自身采集的外部温度值并将其等效为电动部分散热器2中冷却液的温度，例如将外部温度的低温区(小于或等于16度)等效为电动部分散热器中冷却液的低温区(小于或等于30度)。The process of obtaining the temperature value of the coolant in the
如上所述，当所述温度传感器损坏时，所述方法还包括根据所述空调1采集的外部温度值来控制冷却风扇5的工作，(1)当发动机处于启动状态或空调1处于制冷状态时：如果外部温度值处于外部温度的低温区时，则只有当发动机散热器3中冷却液的温度值大于或等于92度时，才控制冷却风扇5开启，否则控制冷却风扇5关闭；如果外部温度值处于外部温度的中温区或外部温度的高温区时，则控制冷却风扇5开启；(2)当发动机处于关闭状态且空调1处于非制冷状态时：如果外部温度值处于外部温度的低温区时，则只有当发动机散热器3中冷却液的温度值大于或等于98度时，控制冷却风扇5开启，否则控制冷却风扇5关闭；如果外部温度值处于外部温度的中温区或外部温度的高温区时，则控制冷却风扇5开启。As mentioned above, when the temperature sensor is damaged, the method also includes controlling the operation of the cooling fan 5 according to the external temperature value collected by the
其中，当外部温度值处于外部温度的高温区或者发动机散热器3中冷却液的温度值大于或等于98度时，控制冷却风扇5高档开启；如果外部温度值处于外部温度的中温区且发动机散热器3中冷却液的温度值小于98度时，控制冷却风扇5低档开启；当发动机处于启动状态或空调1处于制冷状态时，如果电动部分散热器2中冷却液的温度值处于外部温度的低温区时，则当发动机散热器3中冷却液的温度值大于或等于92且小于98度时，则控制冷却风扇5低档开启。Wherein, when the external temperature value is in the high temperature zone of the external temperature or the temperature value of the coolant in the
与上述一样，为了防止因为外部温度值变化过于频繁而导致所采用的控制方式不断改变，本发明提供的控制方法还包括当外部温度值处于外部温度的低温区与外部温度的中温区之间、外部温度的中温区与外部温度的高温区之间的两个中间区时，如果是在初始控制时，选择与当前外部温度值最靠近的温度区间所对应的控制方法来控制冷却风扇5；如果在初始控制之后，则继续沿用温度值变化之前使用的控制方法来控制冷却风扇5。所述外部温度的低温区为温度值小于或等于16度的区间；所述外部温度的中温区为温度值处于20～24度的区间；所述外部温度的高温区为温度值大于或等于28度的区间。As above, in order to prevent the adopted control method from changing continuously due to too frequent changes in the external temperature value, the control method provided by the present invention also includes when the external temperature value is between the low temperature range of the external temperature and the medium temperature range of the external temperature, During the two intermediate zones between the middle temperature zone of the external temperature and the high temperature zone of the external temperature, if it is during the initial control, select the control method corresponding to the temperature range closest to the current external temperature value to control the cooling fan 5; if After the initial control, the cooling fan 5 is controlled by the control method used before the temperature value changes. The low temperature zone of the external temperature is an interval with a temperature value less than or equal to 16 degrees; the medium temperature zone of the external temperature is an interval with a temperature value between 20 and 24 degrees; the high temperature zone of the external temperature is a temperature value greater than or equal to 28 degrees. range of degrees.
如图4所示，当电动部分散热器中的温度传感器损坏时，控制冷却风扇5的方法为：As shown in Figure 4, when the temperature sensor in the radiator of the electric part is damaged, the method for controlling the cooling fan 5 is:
(1)当发动机处于启动状态或空调1处于制冷状态时：(1) When the engine is in the starting state or the
(a)如果外部温度值小于或等于16度时(相当于冷却液的低温区)，当发动机散热器3中冷却液的温度值大于或等于98度时，则控制冷却风扇5高档开启；当发动机散热器3中冷却液的温度值大于或等于92度时且小于98度时，控制冷却风扇5低档开启；否则，控制冷却风扇5关闭；(a) If the external temperature value is less than or equal to 16 degrees (equivalent to the low temperature zone of the coolant), when the temperature value of the coolant in the
(b)如果外部温度值在20～24度(相当于冷却液的中温区)时，则当发动机散热器3中冷却液的温度值大于或等于98度时，控制冷却风扇5高档开启；否则，控制冷却风扇5低档开启；(b) If the external temperature value is between 20 and 24 degrees (equivalent to the middle temperature zone of the coolant), then when the temperature value of the coolant in the
(c)如果外部温度值大于或等于28度(相当于冷却液的高温区)时，则控制冷却风扇5高档开启；(c) If the external temperature value is greater than or equal to 28 degrees (equivalent to the high temperature zone of the coolant), then control the cooling fan 5 to turn on at a high level;
(2)当发动机处于关闭状态且空调1处于非制冷状态时：(2) When the engine is off and the
(a)如果外部温度值小于或等于16度(相当于冷却液的低温区)时，则当发动机散热器3中冷却液的温度值大于或等于98度时，控制冷却风扇5高档开启；否则，控制冷却风扇5关闭；(a) If the external temperature value is less than or equal to 16 degrees (equivalent to the low temperature zone of the coolant), then when the temperature value of the coolant in the
(b)如果外部温度值在20～24度(相当于冷却液的中温区)时，则当发动机散热器3中冷却液的温度值大于或等于98度时，控制冷却风扇5高档开启；否则，控制冷却风扇5低档开启；(b) If the external temperature value is between 20 and 24 degrees (equivalent to the middle temperature zone of the coolant), then when the temperature value of the coolant in the
(c)如果外部温度值大于或等于28度(相当于冷却液的高温区)时，则控制冷却风扇5高档开启。这样即使电动部分散热器2中温度传感器损坏，该冷却控制方法仍然可以正确地控制冷却风扇5和冷凝风扇4。(c) If the external temperature value is greater than or equal to 28 degrees (equivalent to the high temperature zone of the coolant), then control the cooling fan 5 to turn on at a high level. In this way, even if the temperature sensor in the
本发明根据发动机的工作状态、空调1的工作方式以及发动机散热器3中冷却液的温度值对冷凝风扇4进行控制，当发动机处于启动状态或者空调1处于制冷状态时，冷凝风扇4会一直处于开启状态，此时不需要对冷凝风扇4进行控制；而当发动机处于关闭状态且空调1处于非制冷状态时，冷凝风扇4会处于关闭状态，此时需要对冷凝风扇4进行控制以满足冷却需求。因此，控制冷凝风扇4的方法包括：当发动机处于关闭状态且空调1处于非制冷状态时，只要发动机散热器3中冷却液的温度值大于或等于98度，就控制冷凝风扇4开启。The present invention controls the condensing fan 4 according to the working state of the engine, the working mode of the
上述电动部分散热器2和发动机散热器3中冷却液的温度值和外部温度值所的温度区间可以根据发动机的具体型号、电机控制器部分的智能功率模块(IPM)的保护温度值而确定，并不限于上述的具体温度区间。The temperature range of the temperature value of the coolant in the above-mentioned
此外，如图1所示，本发明还提供了一种混合动力汽车的冷却系统，所述冷却系统包括具有空调控制器的空调1、具有温度传感器的电动部分散热器2、发动机散热器3、冷凝风扇4和冷却风扇5，所述冷凝风扇4和冷却风扇5分别用于降低空调1中的冷凝器和发动机散热器3的入口处的温度，其中，所述冷却系统还包括冷却控制器6，所述冷却控制器6分别与空调1中的空调控制器、电动部分散热器2中的温度传感器、冷却风扇5和冷凝风扇4电连接，所述冷却控制器6同时根据空调控制器发送的空调1的工作方式、温度传感器感测的电动部分散热器2中冷却液的温度值或者空调控制器发送的外部温度、发动机散热器3中冷却液的温度值和发动机工作状态，控制冷却风扇5和冷凝风扇4的工作。In addition, as shown in Figure 1, the present invention also provides a cooling system for a hybrid electric vehicle, which includes an
其中，所述冷却控制器6，用于上述用于混合动力汽车冷却系统的控制方法。这里所述冷却控制器6可以为各种能够执行上述控制方法的电子设备，例如计算机、数字信号处理器、单片机以及汽车中的电子控制单元(ECU)等。Wherein, the cooling controller 6 is used in the above-mentioned control method for the cooling system of the hybrid electric vehicle. The cooling controller 6 here can be various electronic devices capable of executing the above-mentioned control method, such as computers, digital signal processors, single-chip microcomputers, and electronic control units (ECUs) in automobiles.
在使用本发明提供的混合动力汽车的冷却系统和控制方法时，将冷却系统中的冷却控制器6与空调1中的空调控制器和发动机中的发动机的控制器相连，同时根据空调1的工作方式、发动机的工作状态、电动部分散热器2中温度传感器发送的电动部分冷却液温度和发动机发送的发动机散热器3中冷却液的温度值来控制冷却风扇5和冷凝风扇4，这样通过综合考虑整个混合动力汽车中各部分的温度状态，使整个控制过程更加细化，可以在满足冷却系统需求的前提下使功耗最小。而当电动部分散热器2中温度传感器损坏时，本发明提供的混合动力汽车的冷却系统和控制方法仍然可以正确地控制冷却风扇5和冷凝风扇4。When using the cooling system and the control method of the hybrid electric vehicle provided by the present invention, the cooling controller 6 in the cooling system is connected with the controller of the engine in the
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