Patent attributes
A method for estimating a state of a battery determines, using a sensor, physical quantities of the battery indicative of a charge of the battery to produce a measured charge of the battery. The method also estimates the physical quantities of the battery using a model of the battery stored in a memory to produce an estimated charge of the battery and updates at least one parameter of the model of the battery to reduce a difference between the measured charge of the battery and the estimated charge of the battery. The method determines the state of the battery using the updated model of the battery.