ELECTRIC VEHICLE, CHARGED STATE ESTIMATING METHOD, AND COMPUTER-READABLE STORAGE MEDIUM RECORDING PROGRAM FOR MAKING COMPUTER EXCUTE CHARGED STATE ESTIMATING METHOD

PROBLEM TO BE SOLVED: To provide an electric vehicle which can accurately estimate the SOC of an accumulator for vehicle running. SOLUTION: When the charge of each accumulator is requested (YES in step S10) from a power source outside a vehicle, charge/discharge is executed (step S20) between accumu...

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Bibliographische Detailangaben
1. Verfasser:	OKI RYOJI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERATION MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PERFORMING OPERATIONS PHYSICS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY TESTING TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an electric vehicle which can accurately estimate the SOC of an accumulator for vehicle running. SOLUTION: When the charge of each accumulator is requested (YES in step S10) from a power source outside a vehicle, charge/discharge is executed (step S20) between accumulators prior to charge of each accumulator. A battery ECU computes the voltage current characteristics of each accumulator, based on the voltage and the current of each accumulator collected at this charge/discharge (step S30). Then, based on the computed voltage current characteristics, OCV of each accumulator is computed (step S40), and based on the OCV computed, the SOC of each accumulator is estimated (step S50). COPYRIGHT: (C)2008,JPO&INPIT