Object: To accurately determine whether or not it is possible to start an engine while accurately detecting a degree of deterioration of a secondary battery. Solution: In a secondary battery state detecting device 1 detecting a state of a secondary battery mounted on a vehicle, a measurement unit (a voltage sensor (11), a current sensor (12), a CPU (10a)) measuring a value of an internal resistance of the secondary battery at an engine stop time; an estimation unit (CPU 10a) estimating a value of a diffusion resistance resulting from diffusion of an ion generated at an electrolytic solution of the secondary battery by supplying electric power to a starter motor at a starting time of the engine; and a calculation unit (CPU 10a) calculating a starting voltage being a voltage required for the starting of the engine from a resistance value obtained by adding the value of the diffusion resistance estimated by the estimation unit to the value of the internal resistance measured by the measurement unit, a starting current flowing when the engine is started, and a voltage before starting of the secondary battery are included.


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    Titel :

    SECONDARY BATTERY STATE DETECTION DEVICE AND SECONDARY BATTERY STATE DETECTION METHOD


    Weitere Titelangaben:

    VORRICHTUNG ZUR ERKENNUNG DES STATUS EINER SEKUNDÄRBATTERIE UND VERFAHREN ZUR ERKENNUNG DES STATUS EINER SEKUNDÄRBATTERIE
    DISPOSITIF DE DÉTECTION D'ÉTAT D'ACCUMULATEUR ET PROCÉDÉ DE DÉTECTION D'ÉTAT D'ACCUMULATEUR


    Beteiligte:
    SATO ETSUZO (Autor:in) / SUGIMURA TAKEZO (Autor:in) / WATANABE YUICHI (Autor:in)

    Erscheinungsdatum :

    2019-07-24


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / F02N STARTING OF COMBUSTION ENGINES , Anlassen von Brennkraftmaschinen / 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 / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung




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