The invention provides a battery pack overheating early warning method and device and a vehicle, which are used for solving the problem of inaccurate early warning of battery pack overheating in the prior art. The battery pack overheating early warning method comprises the following steps: respectively acquiring the current SOC of each battery of a battery pack to obtain the current SOC average value of the battery pack; for each single battery, calculating an SOC difference value between the current SOC of the single battery and the SOC average value; aiming at each single battery, comparing the corresponding SOC difference value with a preset condition, and judging whether the single battery with abnormal SOC change exists or not; and if the single battery with the abnormal SOC change exists, giving out a battery pack overheating early warning.

    本发明提供了一种电池包过热预警方法、装置及车辆,用于解决现有技术对电池包过热预警不准确的问题。该电池包过热预警方法,包括:对电池包的各电池单体当前的SOC分别进行获取,以获得电池包当前的SOC平均值;针对每一电池单体,分别计算其在当前的SOC与所述SOC平均值的SOC差值;针对每一电池单体,分别将其对应的SOC差值与预设条件进行比对,判断是否存在出现SOC变化异常的电池单体;若存在出现SOC变化异常的电池单体,则发出电池包过热预警。


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    Title :

    Battery pack overheating early warning method and device and vehicle


    Additional title:

    一种电池包过热预警方法、装置及车辆


    Contributors:
    LI XIAOTONG (author) / LI ZONGHUA (author) / LIN FU (author) / LI YI (author) / XU PENGFEI (author)

    Publication date :

    2021-09-28


    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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