The invention discloses an electric vehicle power storage battery thermal runaway early warning method, device and system. The method comprises the following steps of: acquiring air pressure data in astorage battery pack, when the air pressure data is abnormal, sending a verification request to a battery management system to obtain to-be-verified data in the storage battery pack, and when the to-be-verified data is determined to meet a preset condition, sending a thermal runaway alarm signal to the whole vehicle. The thermal runaway phenomenon can be found in time by detecting the air pressure data in the storage battery pack, the problem that alarming is not timely is avoided, and the alarming timeliness is improved. Moreover, when the air pressure data is abnormal, the to-be-verified data is further verified, the phenomena of false alarm and missing alarm are avoided, and the alarm accuracy is improved.

    本发明公开了一种电动汽车动力蓄电池热失控预警方法、装置及系统。方法包括:获取蓄电池包内的气压数据;在气压数据异常时,向电池管理系统发送校验请求,以获取蓄电池包内的待检验数据;在确定待校验数据满足预设条件时,向整车发送热失控报警信号。通过检测蓄电池包内气压数据能够及时发现热失控现象,避免报警不及时的问题,提高了报警的及时性。此外,在气压数据异常时,进一步验证待校验数据,避免误报漏报的现象,提高报警的准确性。


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    Title :

    Electric vehicle power storage battery thermal runaway early warning method, device and system


    Additional title:

    一种电动汽车动力蓄电池热失控预警方法、装置及系统


    Contributors:
    WANG CHENGLONG (author) / JIANG JIBING (author) / ZHENG JIAN (author) / YUAN ZHONGZHI (author) / LIU JINCHENG (author)

    Publication date :

    2020-05-08


    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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