BATTERY DETERIORATION DETERMINATION DEVICE

PROBLEM TO BE SOLVED: To accurately detect deterioration degree of a battery by an on-vehicle inexpensive constitution. SOLUTION: First and second discharge depth in each switching of discharge and charge is calculated every charging/discharging cycle of the battery 6. Thereafter, a deterioration am...

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Bibliographic Details
Main Author SHOJI AKIRA
Format Patent
LanguageEnglish
Published 03.04.2008
Subjects
PERFORMING OPERATIONS
TRANSPORTING
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Summary:PROBLEM TO BE SOLVED: To accurately detect deterioration degree of a battery by an on-vehicle inexpensive constitution. SOLUTION: First and second discharge depth in each switching of discharge and charge is calculated every charging/discharging cycle of the battery 6. Thereafter, a deterioration amount of the charging/discharging cycle of the battery 6 is calculated based on a difference value of the first and second discharge depth. The deterioration amount is integrated every charging/discharging cycle, and when the integration value exceeds a predetermined life level, it is determined as the life of the battery 6. COPYRIGHT: (C)2008,JPO&INPIT
Bibliography:Application Number: JP20060255968