A cell balancing device comprises: a capacity adjustment circuit including a plurality of pairs of series-connected switch elements and resistors connected in parallel with respective battery cells, and configured to adjust respective capacities of the battery cells; a processor; and a watchdog unit configured to monitor the processor, and reset the processor in the case where the processor is abnormal. The processor is configured to: transition to a sleep state when an ignition of a vehicle is turned off, and, in the sleep state, control the switch elements to adjust the capacities of the battery cells; and, when adjusting the capacities of the battery cells, limit the number of simultaneously discharged battery cells to a predetermined number so that a current flowing to the processor is less than a predetermined value.


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    Titel :

    Cell Balancing Device


    Beteiligte:
    TANAKA JUNYA (Autor:in) / KUMAGAI NAOTAKA (Autor:in)

    Erscheinungsdatum :

    2022-03-31


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    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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