Patent ID: 7239112
Filing Date: 2007-07-03
Classification: H02J

Abstract:
1. A method for compensating for overcharging of at least one battery, comprising the steps of: (a) calculating a charge rate for the at least one battery; (b) comparing an overcharge accumulator value for the at least one battery with a maximium time limit value; (c) 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; (d) 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; (e) 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; (f) 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 (g) 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.