A battery management circuit includes: a reference signal generator that generates a first reference frequency signal and a second reference frequency signal having a phase different from a phase of the first reference frequency signal; an alternating-current superimposer that superimposes an alternating current on the secondary battery, the alternating current having a frequency component of the first reference frequency signal; a voltage measurer that measures a voltage of the secondary battery by performing sampling using a frequency; a current measurer that measures a current of the secondary battery by performing sampling using a frequency; and a converter that converts each of results of measurements by the voltage measurer and the current measurer into a complex voltage and a complex current, by multiplying the result of the measurement by the first reference frequency signal and the second reference frequency signal.


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    Title :

    BATTERY MANAGEMENT CIRCUIT, BATTERY MANAGEMENT SYSTEM, AND BATTERY MANAGEMENT NETWORK


    Contributors:

    Publication date :

    2022-04-21


    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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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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