The invention relates to a battery fault diagnosis method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring a cell voltage value of a to-be-detected battery; calculating a cell voltage difference value according to the cell voltage value, and determining a first diagnosis result of the to-be-detected battery according to the cell voltage difference value; determining voltage change characteristics of the battery cell according to the voltage value of the battery cell; comparing the battery cell voltage change characteristic with a preset battery cell voltage change threshold value to obtain a second diagnosis result of the to-be-detected battery; and generating a fault diagnosis result of the to-be-detected battery according to the first diagnosis result and the second diagnosis result. According to the method, the fault is diagnosed by adopting a method of weighting and fusing various conditions, the influence of external factors and actual working conditions is considered, and the reliability and calculation efficiency of a fault result are effectively improved.

    本申请涉及一种电池故障诊断方法、装置、计算机设备和存储介质。所述方法包括:获取待测电池的电芯电压值;根据电芯电压值计算电芯电压差值,并根据电芯电压差值,确定对待测电池的第一诊断结果;根据电芯电压值确定电芯电压变化特征;将电芯电压变化特征和预设的电芯电压变化阈值进行比对,得到对待测电池的第二诊断结果;根据第一诊断结果和第二诊断结果,生成待测电池的故障诊断结果。本申请采用对多种条件加权融合的方法诊断故障,考虑外界因素和实际工况的影响,有效提高故障结果的可靠性和计算效率。


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    Title :

    Battery fault diagnosis method and device, computer equipment and storage medium


    Additional title:

    一种电池故障诊断方法、装置、计算机设备和存储介质


    Contributors:
    ZHUANG WEI (author) / YU YANGDONG (author) / WANG CHEN (author)

    Publication date :

    2024-04-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen




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