Method for compensating state of charge of battery, battery...

Details Method for compensating state of charge of battery, battery... Method for compensating state of charge of battery, battery...

2006-12-15

2009-10-13

Tso, Edward (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

Reexamination Certificate

active

07602149

ABSTRACT:
In an SOC compensation method, a first SOC having at least two sections is detected, and a first OCV corresponding to the first SOC is calculated; a second OCV is calculated by using the measured pack current and voltage, and an internal resistance, and a second SOC corresponding to the second OCV is calculated; when a difference between the first and second OCVs is greater than a first reference, a first compensation value corresponding to the first SOC among at least two first compensation values corresponding to the two sections is used to compensate the first SOC; and when a difference between the first and second OCVs is less than a second reference, a second compensation value corresponding to the first SOC among at least two second compensation values corresponding to the two sections is used to compensate the first SOC value.

REFERENCES:
patent: 6424157 (2002-07-01), Gollomp et al.
patent: 7116109 (2006-10-01), Klang
patent: 2003/0214303 (2003-11-01), Ying

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