The invention relates to the technical field of new energy vehicles, in particular to a thermal management method of a power battery, which comprises the following steps: after a whole vehicle is electrified, acquiring the current temperature of the power battery of the whole vehicle; the current temperature is judged; and if the current temperature is not smaller than the temperature threshold value of the power battery, a power supply loop of the power battery is disconnected, power is supplied to a water pump of the whole vehicle through a storage battery of the whole vehicle, and the water pump is controlled to be in a running state. According to the method, the thermal runaway of the power battery is efficiently managed and controlled, the management and control efficiency of the thermal runaway of the power battery is improved, fire and explosion of the power battery caused by expansion of the thermal runaway of the power battery are avoided, and the occurrence rate of thermal runaway safety events of the power battery is effectively reduced; and it is ensured that passengers have more escape time when an accident happens to the whole vehicle.
本发明涉及新能源汽车技术领域,尤其涉及一种动力电池的热管理方法,该方法包括:在整车上电后,获取所述整车的动力电池的当前温度;对所述当前温度进行判断;若所述当前温度不小于所述动力电池的温度阈值,则断开所述动力电池的供电回路,并通过所述整车的电瓶给所述整车的水泵供电,控制所述水泵处于运行状态。该方法对动力电池热失控进行高效地管理控制,提高动力电池热失控的管理控制效率,避免由于动力电池热失控的扩展,导致动力电池起火和爆炸的情况发生,有效降低动力电池的热失控安全事件的发生率,确保乘客在整车发生事故时拥有更多逃生时间。
Thermal management method and device of power battery
一种动力电池的热管理方法及装置
2022-07-26
Patent
Electronic Resource
Chinese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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