To supply an appropriate voltage to an in-vehicle device even if there is a voltage fluctuation in the secondary battery. An in-vehicle power supply apparatus (10) that provides power supply from a secondary battery (4) installed in a vehicle to at least one in-vehicle device (standard quality electric load 20, 21, high quality electric load 30, super high quality electric load 40) includes a voltage compensating unit (voltage compensating section 12) that suppresses and compensates for a decrease in a voltage supplied to the at least one in-vehicle device in a case where a voltage supplied to the at least one in-vehicle devices has become less than or equal to a first predetermined value, and an uninterruptible power supply unit (uninterruptible power supply section 13) that supplies electric power of another secondary battery different from the secondary battery to at least a part of the at least one in-vehicle device in a case where a voltage supplied to the at least one in-vehicle device has become less than or equal to a second predetermined value that is smaller than the first predetermined value.


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    Title :

    VEHICULAR POWER SOURCE DEVICE


    Additional title:

    FAHRZEUGANTRIEBSQUELLENVORRICHTUNG
    DISPOSITIF DE SOURCE D'ALIMENTATION POUR VÉHICULE


    Contributors:

    Publication date :

    2019-04-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    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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