Patent ID: 11876193
Assignee: DENSO CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 3:
4. A battery system comprising a plurality of battery modules, each of the battery modules comprising:
an assembled battery that includes a plurality of battery cells connected in series;
a monitoring unit configured to monitor the assembled battery; and
a temperature sensor configured to be electrically connected to the monitoring unit and output a voltage signal corresponding to a temperature of the assembled battery, wherein:
the monitoring unit of each of the battery modules comprises
a generation unit configured to generate, based on the voltage signal input from the temperature sensor, an identification information item on the corresponding one of the battery modules, the identification information items of the respective battery modules being different from one another;

the battery system further comprises a control unit configured to communicate with the monitoring unit of each of the battery modules; and
the control unit is configured to calculate a state of charge of each assembled battery using cell voltage data received from the monitoring units.