SYSTEM AND METHOD FOR SELECTIVE ESTIMATION OF BATTERY STATE WITH REFERENCE TO PERSISTENCE OF EXCITATION AND CURRENT MAGNITUDE

摘要

A method of monitoring a battery with a controller identifies appropriate times for estimating a state of the battery. The method includes identifying a persistence of excitation in the battery, identifying a magnitude of an electrical current that is supplied to the battery, and performing a state estimation process for the battery only in response to the identified persistence of excitation exceeding a first predetermined threshold and the identified magnitude of the electrical current exceeding a second predetermined threshold.