Battery available charge determination method, in which the charge remaining up to a defined limit is determined using a mathematical model of the battery, the inputs to which are determined from battery operating values

摘要

Device comprises: a charge predictor (2) that determines the available charge from a current discharge curve that represents the electrical properties of the battery and a condition value or parameter estimator (1) that uses actual operating values (Ubatt, Ibatt, Tbatt) of the battery to calculate battery operating values (Z) or parameters (P) for the mathematical battery model. An Independent claim is made for a method for determining the remaining charge that can be drawn from a battery up to a preset discharge limit.