PROBLEM TO BE SOLVED: To provide a power supply control device for on-vehicle electric load and a control method therefor that can suppress a diagnostic circuit from increasing in cost and discriminate many kinds of abnormality.SOLUTION: The present invention relates to: a power supply control device 100 for on-vehicle electric load that comprises upstream and downstream-side opening/closing elements 120a, 140 connected to a first electric load 40a in series, and a control circuit 190 which controls the opening/closing elements, and determines a kind of abnormality of the circuit based upon a voltage monitor signal MNT varying in response to upstream and downstream potentials of the first electric load 40a and a current monitor signal MN0 varying with the voltage across a downstream resistance 401; and a control method therefor.SELECTED DRAWING: Figure 5

    【課題】診断回路のコストアップを抑制することができると共に、多くの異常の種別を識別できる車載電気負荷の給電制御装置及びその制御方法を提供する。【解決手段】第1電気負荷40aに直列接続された上流側及び下流側開閉素子120a、140と、開閉素子を制御する制御回路部190と、を備え、第1電気負荷40aの上流及び下流の電位に応動して変化する電圧監視信号MNTと、下流側抵抗401の両端電圧に応じて変化する電流監視信号MN0とに基づいて、回路の異常の種別を判定する車載電気負荷の給電制御装置100及びその制御方法。【選択図】図5


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    Title :

    POWER SUPPLY CONTROL DEVICE FOR ON-VEHICLE ELECTRIC LOAD AND CONTROL METHOD THEREFOR


    Additional title:

    車載電気負荷の給電制御装置及びその制御方法


    Contributors:

    Publication date :

    2017-03-09


    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



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