Battery system

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
• an external member electrically connected to the monitoring unit, wherein
• the monitoring unit is configured to generate an identification information item on each of the battery modules based on an electrical signal input from the external member, the identification information items of the respective battery modules being different from one another,
• the battery system is applied to a vehicle, and
• the identification information item is generated for each of the battery modules at every predetermined cycle after the vehicle is started.

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
• an external member electrically connected to the monitoring unit, wherein
• the monitoring unit is configured to generate an identification information item on each of the battery modules based on an electrical signal input from the external member, the identification information items of the respective battery modules being different from one another,
• the external member comprises:
• at least one first sensor configured to output a first voltage signal indicative of a temperature of the assembled battery;
• and
• at least one second sensor configured to output a second voltage signal indicative of the temperature of the assembled battery, the second voltage signal having a voltage level different from that of the first voltage signal,
• the monitoring unit of each of the battery modules comprises a connector that includes a plurality of terminals that are connected to a plurality of electric wirings extending from the at least one first sensor and the at least one second sensor so as to form a connection pattern by which the first and second sensors are connected in a specific order to the plurality of terminals via the electric wirings,
• the connection pattern between the plurality of terminals of the connector and the at least one first sensor and the at least one second sensor being different for each of the battery modules so that (i) the specific order of connection between the first and second sensors and the plurality of terminals via the electric wirings of a first of the battery modules at least differs from (ii) the specific order of connection between the first and second sensors and the plurality of terminals via the electric wirings of a second of the battery modules, and
• the identification information item is generated based on one of the first voltage signal and the second voltage signal input to each of the plurality of terminals of the connector.

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;
• and
• a monitoring unit configured to monitor the assembled battery, wherein
• the battery system further comprises a control unit that is communicable wirelessly with the monitoring unit of each of the battery modules,
• the control unit is configured to:
• perform an identification process for identifying each of the battery modules, and
• notify a request for replacement of a corresponding one of the battery modules based on the identification process of the corresponding one of the battery modules,
• each of the battery modules further comprises an external member electrically connected to the monitoring unit, and
• the monitoring unit is configured to generate an identification information item on each of the battery modules based on an electrical signal input from the external member, the identification information items of the respective battery modules being different from one another.