The invention discloses a method and device for calibrating the electric quantity of a vehicle battery, and relates to the technical field of vehicles. The specific implementation mode of the method comprises the following steps: in response to determining that a vehicle battery enters a standing state, determining a theoretical electric quantity value corresponding to a first moment when standing of the battery begins, and monitoring the voltage of the battery in the standing process; determining that the standing type of the battery belongs to standing after charging or standing after discharging according to the monitored change condition of the voltage of the battery in the target time period; a difference value between a second moment corresponding to the starting point of the target time period and the first moment is not less than a first threshold value; determining a corresponding target voltage value when the standing of the battery is finished; searching a target electric quantity value corresponding to the target voltage value in corresponding preset reference data; and calibrating the theoretical electric quantity value according to the target electric quantity value. According to the embodiment, the accuracy of judging the standing type is improved, the target electric quantity value is closer to the real electric quantity of the battery, and the calibration precision of the electric quantity of the battery is improved.

    本发明公开了一种车辆电池电量的校准方法及装置,涉及车辆技术领域。该方法的具体实施方式包括:响应于确定车辆电池进入静置状态,确定电池在静置开始的第一时刻对应的理论电量值,并监测电池在静置过程中的电压;根据监测到的电池的电压在目标时段内的变化情况,确定电池的静置类型属于充电后静置或放电后静置;该目标时段的起点对应的第二时刻与第一时刻之间的差值不小于第一阈值;确定电池在静置结束时对应的目标电压值;在对应的预设参考数据中,查找目标电压值对应的目标电量值;根据目标电量值,对理论电量值进行校准。该实施方式提高了静置类型判断的准确度,使得目标电量值更接近电池真实电量,并提高了电池电量的校准精度。


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    Title :

    Method and device for calibrating electric quantity of vehicle battery


    Additional title:

    一种车辆电池电量的校准方法及装置


    Contributors:
    SHEN NAN (author) / SHAO YINGPEI (author)

    Publication date :

    2025-03-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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