The invention relates to a method and system for determining the open-circuit voltage of a battery cell of a vehicle and a storage medium. The method is executed by a server side and comprises the steps that historical data of a battery cell are acquired, and the historical data comprise voltage data and current data; determining an open-circuit voltage initial constant value of the battery cell based on the historical data; determining a first charge state of the battery cell through a reference algorithm based on the initial constant value; determining a second charge state of the battery cell through a contrast algorithm based on the historical data; determining an algorithm difference score of the battery cell according to a comparison condition of the first charge state and the second charge state; and determining whether to use the initial constant value as the open-circuit voltage of the battery cell based on the algorithm difference score.

    本申请涉及确定车辆的电芯开路电压的方法和系统、存储介质。所述方法由服务器端执行并且包括:获取电芯的历史数据,其中,所述历史数据包括电压数据和电流数据;基于所述历史数据确定所述电芯的开路电压初定值;基于所述初定值通过基准算法确定所述电芯的第一荷电状态;基于所述历史数据通过对照算法确定所述电芯的第二荷电状态;根据所述第一荷电状态和所述第二荷电状态的比较情况确定所述电芯的算法差异评分;以及基于所述算法差异评分确定是否将所述初定值作为所述电芯的开路电压。


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    Title :

    Method and system for determining open-circuit voltage of battery cell of vehicle and storage medium


    Additional title:

    确定车辆的电芯开路电压的方法和系统、存储介质


    Contributors:
    WAN ZHIWEN (author) / YAN HAOMING (author) / HUA RUI (author) / ZENG SHIZHE (author)

    Publication date :

    2024-03-01


    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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