Battery overcharging compensation system and method

Details Battery overcharging compensation system and method Battery overcharging compensation system and method

2007-07-03

2007-07-03

Easthom, Karl (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

C320S156000

Reexamination Certificate

active

10842182

ABSTRACT:
A method for compensating for overcharging of at least one battery includes calculating a charge rate for the at least one battery, comparing an overcharge accumulator value for the at least one battery with a maximum time limit value, comparing the calculated charge rate with a nominal charge rate for the at least one battery, if the overcharge accumulator value is less than the maximum time limit value, incrementing the overcharge accumulator value if the calculated charge rate is higher than the nominal charge rate, if the overcharge accumulator value is less than the maximum time limit value, decrementing the overcharge accumulator value if the calculated charge rate is lower than the nominal charge rate (if the overcharge accumulator value is less than the maximum time limit value), setting the charge rate for the at least one battery to the calculated charge rate (if the overcharge accumulator value is less than the maximum time limit value), and setting the charge rate for the at least one battery to the nominal charge rate, or to a charge rate lower than the nominal charge rate, if the overcharge accumulator value equals or exceeds the maximum time limit value. In this manner, battery life may be prolonged.

REFERENCES:
patent: 4392101 (1983-07-01), Saar et al.
patent: 5600226 (1997-02-01), Falcon
patent: 2005/0200332 (2005-09-01), Kangas et al.

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