METHOD FOR DETERMINING A CURRENT, BATTERY MANAGEMENT UNIT, BATTERY AND MOTOR VEHICLE

摘要

A method is described for determining a current, in particular a short-circuit current, of a battery by means of a defined prediction time period. The method according to the invention comprises the following steps: measuring a voltage of the battery, reading a battery state and determining the solution of a differential equation which describes the temporal development of current in the course of the prediction time period using an equivalent circuit model. The differential equation comprises the battery state and the measured voltage. Moreover, a battery management unit for performing the method, a battery with battery management unit and a motor vehicle having the battery or the battery management unit are described.