To provide a vehicle backup power supply device which can back up a vehicle auxiliary machine even when a power supply line fails.SOLUTION: A vehicle backup power supply device 40 is connected to a vehicle power supply (21) by an ignition line 60 through the ignition line 60, and includes a power storage part 41, a step-down circuit 44 and a step-up circuit 45 for charging the power storage part 41 from the vehicle power supply (21) and outputting to vehicle auxiliary machines (30, 31, 32) from the power storage part 41, MOS transistors 42, 43 for interrupting a power supply path L10 from the vehicle power supplies (20, 21) to the vehicle auxiliary machines (30, 31, 32), and a controller 46 for controlling a charging/discharging circuit parts (44, 45) and cut-off switches (42, 43). When the vehicle stops and an ignition switch SW is turned off, operation of the vehicle backup power supply device 40 stops.SELECTED DRAWING: Figure 1

    【課題】電力供給ラインが故障した場合においても車両補機をバックアップすることができる車両用バックアップ電源装置を提供する。【解決手段】車両用バックアップ電源装置40は、イグニッションライン60を介したイグニッションライン60で車両電源(21)と接続されている。蓄電部41と、車両電源(21)から蓄電部41への充電及び蓄電部41の車両補機(30,31,32)への出力を行うための降圧回路44及び昇圧回路45と、車両電源(20,21)から車両補機(30,31,32)への電力供給経路L10を遮断するためのMOSトランジスタ42,43と、充放電回路部(44,45)及び遮断スイッチ(42,43)を制御するコントローラ46と、を有する。車両の停車、かつ、イグニッションスイッチSWがオフになると、車両用バックアップ電源装置40の動作が停止する。【選択図】図1


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    Titel :

    VEHICLE BACKUP POWER SUPPLY DEVICE


    Weitere Titelangaben:

    車両用バックアップ電源装置


    Beteiligte:
    YOKOYAMA WATARU (Autor:in) / MUTA MITSUHARU (Autor:in) / TAKADA KAZUYOSHI (Autor:in)

    Erscheinungsdatum :

    2020-04-23


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    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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