The invention discloses a thermal management method and device for a power battery, a vehicle control unit and an electric vehicle. The method comprises the following steps: detecting the actual temperature of the power battery of a vehicle; when it is detected that an actual temperature is higher than a first preset temperature, turning on a refrigeration switch of a vehicle-mounted air conditioner so as to the actual temperature of the power battery to be reduced to the first preset temperature through the vehicle-mounted air conditioner; and when it is detected that the actual temperature is lower than a second preset temperature, turning on a heating switch of heating equipment so as to the heating equipment to raise the actual temperature of the power battery to the second preset temperature, wherein the first preset temperature is higher than the second preset temperature. Therefore, the temperature of the power battery is effectively controlled in a high-temperature environment or a low-temperature environment, the charging and discharging performance and the safety performance of the power battery are greatly improved, the vehicle using feeling of a user is effectively improved, and the driving range of the vehicle is increased.
本申请公开了一种动力电池的热管理方法、装置、整车控制器及电动车辆,其中,方法包括:检测车辆动力电池的实际温度;在检测到实际温度高于第一预设温度时,打开车载空调的制冷开关,以使车载空调将动力电池的实际温度降低至第一预设温度;在检测到实际温度低于第二预设温度时,打开加热设备的加热开关,以使加热设备将动力电池的实际温度提高至第二预设温度,其中,第一预设温度大于第二预设温度。由此,实现在高温环境或低温环境下,对动力电池温度的有效控制,大大提升了动力电池的充、放电性能和安全性能,有效改善用户的用车感受,提高车辆的续驶里程。
Thermal management method and device for power battery, vehicle control unit and electric vehicle
动力电池的热管理方法、装置、整车控制器及电动车辆
18.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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