Patent ID: 7321220

Claim:
A method for estimating a maximum discharge power of a battery, comprising: generating a signal indicative of a present state-of-charge of said battery, utilizing a sensor; calculating said present state-of-charge of said battery based on said signal, utilizing an arithmetic circuit operably coupled to said sensor; calculating a maximum discharge current of said battery utilizing said arithmetic circuit based on at least a minimum state of charge limit associated with said battery, said present state of charge of said battery a minimum voltage limit associated with said battery, and of a cell model that is solved by a Taylor series expansion of an open cell voltage of the battery to determine a future output voltage at the battery, such that the future output voltage of said battery does not fall below said minimum voltage limit and a future state-of-charge of said battery does not fall below said minimum state-of-charge limit associated with said battery; and, calculating said maximum discharge power based on said maximum discharge current value, utilizing said arithmetic circuit.