The invention provides a battery remaining capacity correction method and device, a battery management system, a battery pack, an electric vehicle and a storage medium, and the method comprises the steps: monitoring the working current of a battery, and if the working current of the battery meets a preset condition, obtaining the battery terminal voltage of the battery at the current correction moment; based on the battery terminal voltage, determining initial correction residual electric quantity corresponding to the battery terminal voltage and a target electric quantity correction error; obtaining a preset corresponding relation between the electric quantity correction error and a weight coefficient, and determining a target weight coefficient corresponding to the target electric quantity correction error according to the corresponding relation between the electric quantity correction error and the weight coefficient; and based on the target weight coefficient and the initial correction residual electric quantity, determining a target correction residual electric quantity, and based on the target correction residual electric quantity, correcting the residual electric quantity at the current correction moment. According to the embodiment of the invention, the correction opportunity of the remaining power of the battery can be increased, and the cumulative estimation precision of the remaining power of the battery can be improved.

    本公开提供了一种电池剩余电量的修正方法、装置、电池管理系统、电池包、电动汽车及存储介质,该方法包括:监测电池的工作电流,若电池的工作电流满足预设条件,获取电池在当前修正时刻的电池端电压;基于电池端电压确定与电池端电压对应的初始修正剩余电量以及目标电量修正误差;获取预设的电量修正误差与权重系数的对应关系,并根据电量修正误差与权重系数的对应关系,确定与目标电量修正误差对应的目标权重系数;基于目标权重系数以及初始修正剩余电量,确定目标修正剩余电量,并基于目标修正剩余电量对当前修正时刻的剩余电量进行修正。本公开实施例,可以增加对电池的剩余电量的修正机会,有助于提升电池剩余电量的累计估算精度。


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    Titel :

    Method, device and system for correcting remaining capacity of battery, automobile and medium


    Weitere Titelangaben:

    电池剩余电量的修正方法、装置、系统、汽车及介质


    Beteiligte:
    YANG TAO (Autor:in)

    Erscheinungsdatum :

    2023-11-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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