To provide a vehicular power supply control device capable of accurately determining a charge state of a low-voltage battery.SOLUTION: A control device for a power supply includes: a power generator (13) generating electric power; a high-voltage battery (14) accumulating the electric power generated by the power generator; a low-voltage battery (19); a voltage converter (17) for lowering voltage of the high-voltage battery; a current sensor (18) detecting an output current of the voltage converter; and a control unit (10). The voltage converter is configured to lower the output voltage from the high-voltage battery to charge the low-voltage battery and supply electric power to the low-voltage battery and a low-voltage electric load connected to the voltage converter. When an engine mounted to the vehicle is in a stopped state, if an output current detected by the current sensor is lowered to a predetermined first current or smaller, the control unit determines that the low-voltage battery is fully charged.SELECTED DRAWING: Figure 3

    【課題】低電圧バッテリの充電状態を正確に判定することができる車両用電源制御装置を提供する。【解決手段】本発明は、電源の制御装置であって、電力を生成する発電機(13)と、この発電機によって生成された電力を蓄積する高電圧バッテリ(14)と、低電圧バッテリ(19)と、高電圧バッテリの電圧を降圧するための電圧変換器(17)と、この電圧変換器の出力電流を検出する電流センサ(18)と、制御ユニット(10)と、を有し、電圧変換器は、高電圧バッテリの出力電圧を降圧して低電圧バッテリに充電すると共に、低電圧バッテリ及び電圧変換器に接続された低電圧電気負荷に電力を供給するように構成され、制御ユニットは、車両に搭載されたエンジンが停止しているとき、電流センサによって検出された出力電流が所定の第1電流以下に低下すると、低電圧バッテリが満充電にされたことを判定することを特徴としている。【選択図】図3


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    Title :

    VEHICULAR POWER SUPPLY CONTROL DEVICE


    Additional title:

    車両用電源制御装置


    Contributors:

    Publication date :

    2020-12-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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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