A state of charge (SOC) determination method and apparatus for a battery system are disclosed. Based on a correspondence between impedance and SOC, a correspondence between OCV and SOC, and an operating current at a previous data collection moment, a correction coefficient at a current data collection moment can be determined(S101). After the SOC estimated at the current data collection moment is corrected based on the correction coefficient(S102-S103), the accumulation of errors in the SOC can be eliminated, and the accuracy of the determined SOC is thereby improved.


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    Title :

    STATE OF CHARGE DETERMINATION METHOD AND APPARATUS FOR BATTERY SYSTEM


    Additional title:

    VERFAHREN UND VORRICHTUNG ZUR BESTIMMUNG DES LADEZUSTANDES EINES BATTERIESYSTEMS
    PROCÉDÉ ET APPAREIL DE DÉTERMINATION D'ÉTAT DE CHARGE POUR SYSTÈME DE BATTERIE


    Contributors:
    MA RUIJUN (author) / YUN QIANG (author) / PAN FANGFANG (author) / LI KUI (author)

    Publication date :

    2024-03-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen






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