Secondary cell residual capacity calculation method and...

Details Secondary cell residual capacity calculation method and... Secondary cell residual capacity calculation method and...

2004-07-23

2009-02-17

Ullah, Akm Enayet (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

C320S134000, C324S431000

Reexamination Certificate

active

07492126

ABSTRACT:
A secondary cell residual capacity calculation method and a battery pack capable of calculating the secondary cell residual capacity is provided. The calculation method includes detecting a temperature of a plurality of secondary cells; detecting a current and a terminal voltage of the plurality of secondary cells; digitizing temperature, current, and terminal voltage; calculating a cell polarization voltage from the digitized temperature, current and terminal voltage; calculating an original cell voltage from both of the calculated cell polarization voltage and the detected terminal voltage; and calculating a residual capacity rate based on the calculated original cell voltage with reference to a prearranged residual capacity reference data table.

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Japanese Office Action dated Feb. 20, 2007 (2 pages).
European Office Action dated Sep. 10, 2006 (4 pages).

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