The invention discloses a battery pack cell internal short circuit identification method and device, a medium and equipment. The method comprises the following steps: acquiring all cell voltage data of a battery pack of a to-be-identified vehicle in a preset time period from a cloud; analyzing a voltage matrix corresponding to all the cell voltage data to obtain a voltage consistency value of each row of voltage data in the voltage matrix; performing statistical processing on the voltage consistency value of each row of voltage data to obtain a comprehensive voltage index of each battery cell; and according to the comprehensive voltage index of each battery cell, outlier detection is carried out by combining a preset clustering algorithm model, and an internal short circuit identification result of each battery cell is obtained. By the adoption of the technical scheme, the detection period can be shortened, the battery cell with the internal short circuit can be recognized in time in the early stage, the false alarm rate of the recognition result can be reduced, meanwhile, the calculation amount can be reduced, the complexity of the recognition scheme can be reduced, and the recognition speed can be increased.

    本发明公开了一种电池包电芯内短路识别方法、装置、介质及设备,所述方法包括:从云端获取预设时间段内待识别车辆的电池包的所有电芯电压数据;对所述所有电芯电压数据对应的电压矩阵进行分析,获得所述电压矩阵中的每一行电压数据的电压一致性值;对每一行电压数据的电压一致性值进行统计性处理,获得每一个电芯的综合性电压指标;根据每一个电芯的综合性电压指标,结合预设的聚类算法模型进行离群点检测,获得每一个电芯的内短路识别结果。采用本发明的技术方案能够缩短检测周期,在早期就及时识别出存在内短路的电芯,并且能够降低识别结果的误报率,同时,还能够减少计算量,降低识别方案的复杂度,提高识别速度。


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    Title :

    Method and device for identifying short circuit in battery cell of battery pack, medium and equipment


    Additional title:

    一种电池包电芯内短路识别方法、装置、介质及设备


    Contributors:
    TANG HAO (author)

    Publication date :

    2023-11-10


    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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