A battery management system, a battery pack, an electric vehicle and a battery management method are provided. The battery management system according to the present disclosure includes a sensing unit for detecting voltage, current, and pressure of the battery cell, a memory for storing first relationship data representing the relationship between OCV and SOC and second relationship data representing the relationship between pressure and SOC, and a control unit for determining a voltage value representing the detected voltage, a current value representing the detected current, and a pressure value representing the detected pressure, and determining a SOC estimation value of the battery cell at each set time. The control unit compares a previous SOC estimation value having the plateau section, and determines a current SOC estimation value by executing at least one of (i) a first SOC estimation value based on the voltage value, the current value and the first relationship data, and (ii) a second SOC estimation value based on the pressure value and the second relationship data.


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    Title :

    BATTERY MANAGEMENT SYSTEM, BATTERY PACK, ELECTRIC VEHICLE, AND BATTERY MANAGEMENT METHOD


    Additional title:

    BATTERIEVERWALTUNGSSYSTEM, BATTERIEPACK, ELEKTROFAHRZEUG UND BATTERIEVERWALTUNGSVERFAHREN
    SYSTÈME DE GESTION DE BATTERIE, BLOC-BATTERIE, VÉHICULE ÉLECTRIQUE ET PROCÉDÉ DE GESTION DE BATTERIE


    Contributors:
    HONG KYUNG-SIK (author) / KIM HYEON-JIN (author) / PARK GI-SU (author) / AHN JI-HOON (author)

    Publication date :

    2025-06-18


    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 / G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE / 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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