Method for determining constant current of battery cell of battery used in motor car, involves forming current comparison value using in past period of time until present time point flowed with battery cell current by using filter

摘要

The method involves forming (S1) a current comparison value using in a past period of time until a present time point flowed with battery cell current by using a filter. The current comparison value is compared (S2) with a predetermined limiting reference value. The constant current of the battery cell is determined (S3) for prediction period. The battery cell current is regulated (S4). Independent claims are included for the following: (1) the battery management unit; (2) the battery; and (3) the motor car.