The invention discloses a battery SOC determination method and device, a battery management system and a storage medium. The battery SOC determination method comprises the following steps: acquiring system parameters of a battery management system; the system parameters comprise the last power-off time of the battery management system, the current system time of the current power-on and the battery monomer voltage of the current power-on; determining the standing time of the battery management system according to the current system time when the battery management system is powered on; when the standing time meets a preset condition, determining an initial SOC value of the current power-on of the battery management system according to the voltage of the single battery; and when the standing time does not meet the preset condition, taking the SOC value stored in the last power-off time as the initial SOC value of the current power-on. According to the technical scheme provided by the embodiment of the invention, the calculation result of the SOC of the battery can better conform to the current running state of the battery, so that the accuracy of the initial SOC of the battery is improved, and the method is simple and good in universality.

    本发明公开了一种电池SOC确定方法、确定装置、电池管理系统和存储介质。电池SOC确定方法包括获取电池管理系统的系统参数;系统参数包括:电池管理系统的上次下电时间、本次上电时的当前系统时间和本次上电时的电池单体电压;根据本次上电时的当前系统时间,确定电池管理系统的静置时间;在静置时间满足预设条件时,根据电池单体电压确定电池管理系统的本次上电的初始SOC值;在静置时间不满足预设条件时,将上次下电时间存储的SOC值作为本次上电的初始SOC值。本发明实施例提供的技术方案,能够使得电池SOC的计算结果更加符合电池当前运行状态,从而提升电池初始SOC的准确性,且方法简单,泛用性好。


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    Title :

    Battery SOC (State of Charge) determination method and device, battery management system and storage medium


    Additional title:

    电池SOC确定方法、确定装置、电池管理系统和存储介质


    Contributors:
    LIU JIAHUI (author) / LI SONGSONG (author) / XIANG XIAOLEI (author) / GAO JIEPENG (author) / JIANG CONGHUI (author) / LIU JIANYU (author) / YIN PENG (author) / ZHAO SHUAI (author)

    Publication date :

    2024-08-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY




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