A battery management system includes a sensing circuit to acquire a state parameter of each of a plurality of battery cells connected in series; and a control circuit to determine, for each battery cell, a first state of charge (SOC) change which is a difference between a first SOC at a first charge time and a second SOC at a second charge time by applying a SOC estimation algorithm to the state parameter acquired during charging. The control circuit determines a reference factor by applying a statistical algorithm to the first SOC changes of at least two of the plurality of battery cells. The control circuit detects an internal short circuit fault in each battery cell based on the first SOC change of each battery cell and the reference factor.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Battery management system, battery pack, electric vehicle and battery management method


    Beteiligte:
    KIM YOUNG-MIN (Autor:in) / KIM CHEOL-TAEK (Autor:in) / SUNG YONG-CHUL (Autor:in)

    Erscheinungsdatum :

    21.01.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



    Battery management system, battery management method, battery pack, and electric vehicle

    LEE BOM-JIN | Europäisches Patentamt | 2025

    Freier Zugriff

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

    CHA A-MING / BAE YOON-JUNG / KIM DAE-SOO et al. | Europäisches Patentamt | 2025

    Freier Zugriff

    BATTERY MANAGEMENT SYSTEM BATTERY PACK ELECTRIC VEHICLE AND BATTERY MANAGEMENT METHOD

    KO YOUNG HWI | Europäisches Patentamt | 2025

    Freier Zugriff

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

    HONG KYUNG-SIK / KIM HYEON-JIN / PARK GI-SU et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    Battery management system, battery management method, battery pack, and electric vehicle

    NAM GI-MIN / KIM HYUNG-SEOK / JOE WON-TAE et al. | Europäisches Patentamt | 2023

    Freier Zugriff