PROBLEM TO BE SOLVED: To efficiently perform charging of a battery by appropriate auxiliary charging.SOLUTION: An electric power supply unit 1 comprises: a battery 14 provided to a vehicle; an alternator 12 generating electric power with rotation of an engine 10 of the vehicle as a power source and supplying the electric power generated to at least the battery; a current sensor 18 measuring a current flowing through a path from the alternator to the battery; a storage rate derivation section 42 integrating a current value measured by the current sensor and deriving a storage rate of the battery; and an alternator control section 44 determining a target charge amount on the basis of the storage rate at the time of start-up of the engine derived by the storage rate derivation section and controlling output of the alternator on the basis of an auxiliary charging mode where gradually increasing the storage rate of the battery until auxiliary charging corresponding to the target charge amount is completed.SELECTED DRAWING: Figure 1
【課題】適切な補充電により、効率よくバッテリの充電を行う。【解決手段】電力供給ユニット1は、車両に設けられたバッテリ14と、車両のエンジン10の回転を動力源として電力を生成し、生成した電力を少なくともバッテリに供給するオルタネータ12と、オルタネータからバッテリまでの経路に流れる電流を測定する電流センサ18と、電流センサが測定した電流値を積分してバッテリの蓄電率を導出する蓄電率導出部42と、蓄電率導出部が導出したエンジンの始動時の蓄電率に基づいて目標充電量を決定し、目標充電量相当の補充電が完了するまで、バッテリの蓄電率を漸増させる補充電モードに基づいてオルタネータの出力を制御するオルタネータ制御部44と、を備えることを特徴とする。【選択図】図1
ELECTRIC POWER SUPPLY UNIT
電力供給ユニット
2016-06-23
Patent
Elektronische Ressource
Japanisch
IPC: | 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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