A method for estimating a state of charge of a valve regulated lead-acid battery includes; an overcharge amount identification step of identifying an overcharge amount when the lead-acid battery is overcharged after an arbitrary reference time; an open circuit voltage acquisition step of acquiring an open circuit voltage of the lead-acid battery after the reference time; and a state-of-charge estimation step of estimating a state of charge of the lead-acid battery based on the acquired open circuit voltage and a correlation between an open circuit voltage and state of charge in which a rate of change of the state of charge with respect to the open circuit voltage is smaller as the overcharge amount from the reference time until an acquisition time of the open circuit voltage is larger.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Method for estimating state of charge, liquid reduction amount of electrolyte solution of valve regulated lead-acid battery, and device for monitoring valve regulated lead-acid


    Beteiligte:
    MORISHIMA SHOYA (Autor:in) / NAKANISHI YUKI (Autor:in)

    Erscheinungsdatum :

    14.03.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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




    Improving the valve-regulated lead-acid battery

    Moseley, P.T. | Online Contents | 2000


    Valve-regulated lead-acid batteries

    Berndt, D. | Online Contents | 2001


    Valve-regulated lead-acid batteries

    Berndt, D. | Online Contents | 2001


    Valve-regulated lead-acid batteries

    Rand, D.A.J. | Online Contents | 1996