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

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

2006-12-14

2010-06-01

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

C320S149000, C324S426000, C324S427000, C324S428000, C324S435000, C324S437000, C340S636100, C340S636210

Reexamination Certificate

active

07728555

ABSTRACT:
The present invention relates to a state of charge (SOC) compensation method for a vehicle using electrical energy, and a battery management system using the SOC compensation method. To determine the SOC of the battery, charge and discharge current of the battery is used to calculate a first SOC of the battery and a first corresponding voltage, a rheobasic voltage is calculated, an integration error corresponding to a difference between the first voltage and the rheobasic voltage is calculated, a SOC compensation factor is added to the first SOC when the integration error is greater than a first threshold value, and a SOC compensation factor is subtracted from the first SOC when the integration error is less than a second threshold value.

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U.S. Notice of Allowance dated May 19, 2009, for related U.S. Appl. 11/643,218.

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