PROBLEM TO BE SOLVED: To provide a vehicular power supply system that inhibits a power supply from a sub-power supply to a theft prevention device when a user works to replace a main power supply, even in a situation where the main power supply is incapable of supplying the theft prevention device with power.SOLUTION: A system includes: a vehicular theft prevention device; a main power supply 20 for supplying the theft prevention device with power; a voltage sensor 20s for detecting a voltage of the main power supply; a sub-power supply 40 capable of supplying the theft prevention device with power; an output adjustment part, disposed between the theft prevention device and the sub-power supply, for adjusting power to be supplied to the theft prevention device from the sub-power supply; and a control part for controlling the output adjustment part so as to supply the theft prevention device with power from the sub-power supply in a case where a bonnet hood of the vehicle is closed, with doors of the vehicle locked and a voltage of the main power supply detected by the voltage sensor equal to or lower than a given threshold, or to not supply the theft prevention device with power from the sub-power supply in a case where the hood is open or a door is unlocked.SELECTED DRAWING: Figure 1

    【課題】メイン電源から盗難防止装置への電力供給ができない状況でも、ユーザがメイン電源の交換作業をするときには、サブ電源から盗難防止装置への電力供給が行われないようにする車両用電源システムを提供する。【解決手段】車両の盗難防止装置と、盗難防止装置に電力を供給するメイン電源20と、メイン電源の電圧を検出する電圧センサ20sと、盗難防止装置に電力を供給可能なサブ電源40と、盗難防止装置とサブ電源との間に設けられ、サブ電源から盗難防止装置に供給される電力を調整する出力調整部と、車両のボンネットフードが開いておらず且つ車両のドアが施錠されている場合であって、電圧センサにより検出されたメイン電源の電圧が所定閾値以下である場合、サブ電源から盗難防止装置に電力を供給し、ボンネットフードが開いている又はドアが開錠されている場合、サブ電源から盗難防止装置に電力を供給しないように出力調整部を制御する。【選択図】図1


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    Title :

    VEHICULAR POWER SUPPLY SYSTEM


    Additional title:

    車両用電源システム


    Contributors:
    INOUE TOMOO (author)

    Publication date :

    2017-06-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme



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