PROBLEM TO BE SOLVED: To increase the probability of protecting accessories at a time of restarting an engine while improving the fuel economy effect of a charging control.SOLUTION: A power supply controller comprises: a first circuit that includes a first battery and having a circuit configuration to be able to charge the first battery from a generator; a second circuit that includes a second battery and accessories; a first switch between the first battery and a power supply line within the first circuit; a second switch between the power supply line of the first circuit and a power supply line of the second circuit; and a switch control unit controlling the first and second switches cooperatively with operation performed by an idling stop control unit. The switch control unit controls the second switch to be continuous to enable the second battery to be charged from the generator, and turns off the first switch to limit discharging of the first battery (S140) if a voltage of the first battery is equal to or lower than a threshold during engine operation; and controls both the first and second switches to be continuous to enable the second battery to be charged from the first battery (S190) during engine stop.

    【課題】充電制御の燃費効果を向上しつつ、再始動時に補機保護を行う可能性を高める。【解決手段】電源制御装置は、第1バッテリを含み、発電機から第1バッテリを充電可能な回路構成を備えた第1回路と、第2バッテリと補機とを含む第2回路と、第1バッテリと第1回路内の電源ラインとの間の第1スイッチと、第1回路の電源ラインと第2回路の電源ラインとの間の第2スイッチと、アイドルストップ制御部の動作と協働して、第1および第2スイッチを制御するスイッチ制御部とを備える。スイッチ制御部は、エンジンの運転中に、第2スイッチを導通して発電機から第2バッテリを充電可能とするとともに、第1バッテリの電圧が所定の閾値以下になったときに、第1スイッチ部を遮断して第1バッテリからの放電を制限し(S140)、エンジンの停止中に、第1および第2スイッチ部を共に導通して、第1バッテリから第2バッテリへの充電を可能とする(S190)。【選択図】図2


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    Title :

    POWER SUPPLY CONTROLLER


    Additional title:

    電源制御装置


    Contributors:

    Publication date :

    2015-12-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F02N STARTING OF COMBUSTION ENGINES , Anlassen von Brennkraftmaschinen / 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 / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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