STORAGE BATTERY MANAGEMENT DEVICE

PROBLEM TO BE SOLVED: To determine a storage battery abnormality, such as deterioration, without having to carry out compulsory discharging. SOLUTION: This storage battery management device 10 for determining deterioration of each battery, constituting a batter pack 60, includes a voltage measuring...

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Bibliographische Detailangaben
Hauptverfasser:	YABUTA KAHO, MATSUSHITA TAKASHI, MOTOZU TAMOTSU, TSUJIKAWA TOMONOBU
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 MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To determine a storage battery abnormality, such as deterioration, without having to carry out compulsory discharging. SOLUTION: This storage battery management device 10 for determining deterioration of each battery, constituting a batter pack 60, includes a voltage measuring part 11 for periodically measuring the inter-terminal voltage of the battery, and storing the measured result in a voltage storage part 41; a fluctuation detection part 22 for detecting that a prescribed fluctuation has occurred in a charge/discharge current of the battery; a variation acquisition part 21 for acquiring each inter-terminal voltage, measured prior to and after the fluctuation from the voltage storage part 41, and acquiring its variations; and an abnormality presence determining part 24 for determining the presence of a battery abnormality, based on the variation acquired by the variation acquisition part 21. COPYRIGHT: (C)2008,JPO&INPIT