Patent ID: 9529053
Filing Date: 2016-12-27
CPC Classification: G01R,H01M,H02J,Y02E

Claim Text:
1. A method for determining the states of charge of battery cells or battery modules of a battery using a plurality of cell monitoring units, the cell monitoring units each monitoring a plurality of the battery cells or at least one battery module, the method comprising: globally measuring a total current from the battery; transmitting the measurement of the total current and/or a trigger signal to the plurality of cell monitoring units; measuring an electrical voltage of each of the battery cells or battery modules with the respective cell monitoring units in response to the transmitted measurement of the total current or the trigger signal; and calculating a state of charge in each of the cell monitoring units for the respective monitored battery cells or the respective at least one battery module using the respective measured electrical voltages of the battery cells or battery modules and the measurement of the total current.