The invention discloses a battery charge state calculation method and device, a vehicle and a storage medium. The method is applied to the battery pack, and the battery pack comprises a battery cell. The method comprises the following steps: acquiring charge information of a battery cell, wherein the charge information comprises a first charge state and a second charge state of the battery cell; judging whether the charge information meets a specified precision judgment condition or not; if the charge information meets a specified precision judgment condition, determining a target charge state of the battery cell based on the second charge state; and if the charge information does not meet the specified precision judgment condition, determining a target charge state of the battery cell based on the first charge state. Under the condition that the charge information meets the specified precision judgment condition, the precision of the total charge state of the battery pack calculated on the basis of the second charge state is greater than the precision of the total charge state of the battery pack calculated on the basis of the first charge state. Therefore, the estimation of the total state of charge of the battery pack by the vehicle can be more accurate.

    本申请公开了一种电池荷电状态的计算方法、装置、车辆及存储介质。该方法应用于电池包,电池包包括电芯。该方法包括:获取电芯的荷电信息,荷电信息包括电芯的第一荷电状态和第二荷电状态;判断荷电信息是否满足指定的精度判定条件;若荷电信息满足指定的精度判定条件,则基于第二荷电状态确定电芯的目标荷电状态;若荷电信息不满足指定的精度判定条件,则基于第一荷电状态确定电芯的目标荷电状态。由于荷电信息在满足指定的精度判断条件的情况下,以第二荷电状态作为基础所计算的电池包的总荷电状态的精度大于以第一荷电状态作为基础所计算的电池包的总荷电状态的精度,使得车辆对电池包的总荷电状态的估算能够更加准确。


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    Title :

    Battery charge state calculation method and device, vehicle and storage medium


    Additional title:

    电池荷电状态的计算方法、装置、车辆及存储介质


    Contributors:
    ZHAN DI (author)

    Publication date :

    2023-01-17


    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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