The invention relates to a method and device for determining the capacity of a power battery, a medium and electronic equipment. The method comprises the following steps of acquiring a charging current corresponding to each charging moment of the power battery in a historical charging process, according to the charging current corresponding to each charging moment, determining a current stable stage in the historical charging process, and in the charging time period corresponding to each current stable stage, enabling the change value of the charging current not to exceed a preset current change threshold value, determining a target current stable stage from the current stable stage, and determining the capacity of the power battery according to the charging current and the charging voltage corresponding to each charging moment in the target current stable stage. Therefore, the data can be screened, the stage of stable data change can be screened out, and the capacity of the power battery can be determined by using the data in the stage, so that the capacity of the power battery can be accurately determined even in a low-frequency acquisition scene.

    本公开涉及一种确定动力电池容量的方法、装置、介质及电子设备。所述方法包括:获取所述动力电池在历史充电过程中各充电时刻对应的充电电流;根据各充电时刻对应的充电电流,确定历史充电过程中的电流平稳阶段,其中,在每一所述电流平稳阶段对应的充电时段内,充电电流的变化值不超过预设的电流变化阈值;从所述电流平稳阶段中确定出目标电流平稳阶段;根据所述目标电流平稳阶段内各充电时刻对应的充电电流和充电电压,确定动力电池的容量。这样,能够对数据进行筛选,筛选出数据平稳变化的阶段,并利用这一阶段内的数据确定动力电池的容量,从而,即便在低频采集场景下,也能够较为准确地确定出动力电池的容量。


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    Title :

    Method and device for determining capacity of power battery, medium and electronic equipment


    Additional title:

    确定动力电池容量的方法、装置、介质及电子设备


    Contributors:
    ZHAO LONGCAN (author) / LI MENGZHAO (author) / WANG YU (author) / HU XIAOCHEN (author) / LIANG SAI (author)

    Publication date :

    2021-12-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



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