POWER SUPPLY DEVICE

PROBLEM TO BE SOLVED: To provide a power supply device for suppressing deterioration in a power storage unit and obtaining high reliability.SOLUTION: A power supply device 11 comprises: a main power supply 13 of a vehicle performing idling stop; a power storage unit 15 electrically connected to the...

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Bibliographische Detailangaben
Hauptverfasser:	KADOTA TAKASHI, WATANABE HISAZUMI, KAKIUCHI KIMIYASU
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a power supply device for suppressing deterioration in a power storage unit and obtaining high reliability.SOLUTION: A power supply device 11 comprises: a main power supply 13 of a vehicle performing idling stop; a power storage unit 15 electrically connected to the main power supply 13; a charging circuit 17 which is electrically connected to the power storage unit 15 and charges the power storage unit 15; a starter 19 electrically connected to the power storage unit 15; a power storage unit voltage detection circuit 21 which is electrically connected to the power storage unit 15 and detects power storage unit voltage Vc; and a control circuit 23 electrically connected to the charging circuit 17, starter 19, and power storage unit voltage detection circuit 21. The control circuit 23 makes the charging circuit 17 charge the power storage unit 15 until the power storage unit voltage Vc has reached power storage unit charging voltage Vck determined based on a running state of the vehicle, and drives the starter 19 by using at least power of the power storage unit 15 after idling stop of the vehicle.