The invention discloses a thermal management strategy and system for a power battery of a new energy automobile. The strategy comprises the steps that temperature information and voltage information of the power battery are collected from a communication signal of a vehicle-mounted diagnosis interface; calculating a plurality of thermal runaway evaluation indexes according to the temperature information and the voltage information of the power battery; judging whether thermal runaway early warning conditions are met or not according to the plurality of thermal runaway evaluation indexes; if yes, thermal runaway early warning is given out. The thermal runaway judgment is performed in real time by detecting the temperature and voltage information of the power battery, the thermal runaway tendency of the power battery can be found in time, early warning is performed, and the early warning time advance is prolonged.
本申请公开了一种新能源汽车的动力电池热管理策略及系统,策略包括:从车载诊断接口的通讯信号中采集动力电池的温度信息和电压信息;依据动力电池的温度信息和电压信息计算多个热失控评价指标;依据多个热失控评价指标判断是否满足热失控预警条件;若满足,则发出热失控预警。本申请通过检测动力电池的温度和电压信息实时进行热失控判断,可以及时发现动力电池的热失控倾向,并进行预警,延长了预警的时间提前量。
Power battery thermal management strategy and system of new energy automobile
一种新能源汽车的动力电池热管理策略及系统
10.12.2024
Patent
Elektronische Ressource
Chinesisch
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