The embodiment of the invention provides an air tightness monitoring method and device for a power battery pack and an electric vehicle. The method is applied to an air tightness monitoring controller, and comprises the following steps: acquiring a change rate of a pressure value of a power battery pack of which the pressure value reaches a preset pressure value within a preset duration; and generating early warning information according to the change rate. According to the scheme, the change rate of the pressure value of the power battery pack within the preset duration is monitored to judge whether the air tightness of the power battery pack needs to be pre-warned or not, so that the air tightness risk caused by the use aging of the power battery pack is avoided, and the use safety and reliability of the electric automobile are improved.
本发明的实施例提供一种动力电池包的气密性监测方法、装置及电动汽车。所述方法应用于气密性监测控制器,所述方法包括:获取压力值达到预设压力值的动力电池包,在预设时长内的压力值的变化率;根据所述变化率,产生预警信息。本发明的上述方案,通过监测动力电池包在预设时长内的压力值的变化率,来判断动力电池包内的动力电池包的气密性是否存在需要进行预警的情况,避免了由于动力电池包使用老化所带来的气密性风险,提高了电动汽车使用的安全性和可靠性。
Air tightness monitoring method and device for power battery pack and electric vehicle
一种动力电池包的气密性监测方法、装置及电动汽车
2021-12-10
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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