To provide an auxiliary power supply device for a vehicle capable of driving electrical equipment when a main power supply is interrupted, by a power storage device with a small capacity.SOLUTION: By dividing DC voltage into two and supplying the DC voltage with temporal difference to four door lock motors 16FL, 16RL, 16FR, and 16RR, driving current from a power storage device 20 is decreased, influence of internal resistance of the power storage device is reduced, so that a reduction of terminal voltage of the power storage device while current is flowing to electric load is suppressed.SELECTED DRAWING: Figure 1

    【課題】 容量の小さい蓄電装置で、主電源が供給が断たれた際に電装品を駆動することができる車両用補助電源装置を提供する。【解決手段】 4個のドアロックモータ16FL、16RL、16FR、16RRに対し、2分割して時間差を持たせ直流電圧を供給することで、蓄電装置20からの駆動電流を減少させ、蓄電装置の内部抵抗の影響を少なくすることで、電気負荷に電流が流れている間の蓄電装置の端子電圧の低下を抑制する。【選択図】 図1


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    Title :

    AUXILIARY POWER SUPPLY DEVICE FOR VEHICLE AND POWER SUPPLY METHOD


    Additional title:

    車両用補助電源装置及び電力供給方法


    Contributors:

    Publication date :

    2020-08-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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