STATE-OF-CHARGE CONTROLLER OF BATTERY

PROBLEM TO BE SOLVED: To provide a state-of-charge controller of battery in which fuel consumption reduction effect can be ensured through regenerative power generation by controlling the state of charge (SOC) of a battery to an always chargeable state. SOLUTION: Battery voltage C at a discharge sta...

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Bibliographische Detailangaben
1. Verfasser:	HASE TAKAMITSU
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 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 state-of-charge controller of battery in which fuel consumption reduction effect can be ensured through regenerative power generation by controlling the state of charge (SOC) of a battery to an always chargeable state. SOLUTION: Battery voltage C at a discharge start point after regenerative power generation is compared with upper and lower limit values D1 and D2 of a predetermined threshold range and a threshold D3 for judging overdischarge (S2-S4). If C>D1, the state of charge (SOC) of a battery is estimated to be large and the state of discharge is increased more than the state of charge obtained by regenerative power generation (S5). If D2>C>D3, the state of charge (SOC) of a battery is estimated to be small and the state of discharge is made fewer than the state of charge obtained by regenerative power generation (S6). If C