Electricity: battery or capacitor charging or discharging – Battery or cell discharging – With charging
Reexamination Certificate
2002-12-02
2008-03-04
Tso, Edward H (Department: 2838)
Electricity: battery or capacitor charging or discharging
Battery or cell discharging
With charging
Reexamination Certificate
active
07339351
ABSTRACT:
There is provided a battery pack system with estimation accuracy of a remaining capacity of a secondary batter enhanced. A current accumulation coefficient correction section109calculates a correction amount α with respect to a current accumulation coefficient k in accordance with a battery electromotive force Veq from an electromotive force calculation section105. A remaining capacity calculation section112estimates a remaining capacity SOC by current accumulation, based on the current accumulation coefficient k calculated from a correction amount α, and a charging efficiency η based on a currently estimated remaining capacity calculated by a charging efficiency calculation section110.
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Egoshi Teruyoshi
Murakami Yusai
Takada Masahiro
Yamabe Norito
Panasonic EV Energy Co., Ltd.
Tso Edward H
Workman Nydegger
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