Battery pack and battery remaining power calculating method

Details Battery pack and battery remaining power calculating method Battery pack and battery remaining power calculating method

2005-12-06

2005-12-06

Tso, Edward H. (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

C324S426000

Reexamination Certificate

active

06972545

ABSTRACT:
The present invention relates to a battery pack having a function for calculating a remaining capacity of a battery cell that can be charged. When a calculated capacity integrated value Y is smaller than a maximum capacity integrated value Ym, a microcomputer (5) incorporated in the battery pack determines the capacity integrated value Y as the remaining capacity data of a battery. When the calculated capacity integrated value Y is the maximum capacity integrated value Ym or larger, the microcomputer determines the maximum capacity integrated value Ym as the remaining capacity data of the battery. Further, the microcomputer (5) corrects a reference capacity integrated value Y0on the basis of the number of times that the capacity integrated value Y reaches the maximum capacity integrated value Ym.

REFERENCES:
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patent: 5847566 (1998-12-01), Marritt et al.
patent: 5883497 (1999-03-01), Turnbull
patent: 5949217 (1999-09-01), Okada et al.
patent: 6501249 (2002-12-01), Drori
patent: 2001/0022518 (2001-09-01), Asakura et al.
patent: 10-213638 (1998-08-01), None
patent: 2001-231179 (2001-08-01), None
patent: 2001-286064 (2001-10-01), None

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