The invention provides a thermal runaway monitoring method and device for a power battery and a storage medium. The monitoring method comprises the following steps: determining an association relationship between a single voltage of a battery cell in a power battery pack and a temperature monitoring point; obtaining a single voltage value and a temperature value of the battery cell; screening the single voltage values and the temperature values to confirm abnormal voltage values and abnormal temperature values; whether the temperature monitoring points corresponding to the abnormal voltage values and the abnormal temperature values meet the incidence relation or not is determined; if yes, a thermal runaway alarm signal is sent. According to the invention, the thermal runaway false alarm risk caused by abnormal temperature and voltage due to hardware faults can be reduced, false alarm caused by pure temperature and voltage combination can be avoided, and the thermal runaway alarm precision can be improved.

    本申请提供一种动力电池的热失控监控方法、装置及存储介质,监控方法包括:确定动力电池包中电芯的单体电压和温度监测点的关联关系;获取电芯的单体电压值及温度值;分别对单体电压值及温度值进行筛选以确认异常电压值及异常温度值;确认异常电压值及异常温度值对应的温度监测点之间是否满足所述关联关系;若满足,则发送热失控报警信号。本申请能够降低由于硬件故障带来的温度和电压异常引起的热失控误报风险及避免单纯的温度和电压组合出现的误报,提高热失控报警精度。


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    Title :

    Thermal runaway monitoring method and device of power battery and storage medium


    Additional title:

    动力电池的热失控监控方法、装置及存储介质


    Contributors:
    WANG CHAO (author)

    Publication date :

    2022-12-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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