Patent ID: 11956097
Assignee: INFINEON TECHNOLOGIES AG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 12:
13. A battery management system comprising:
a battery monitoring unit;
a translator module connected to the battery monitoring unit via a controller area network (CAN) bus line; and
a multiplicity of battery cell monitoring modules that form a daisy chain and are connected to the translator module by a data line,
wherein the translator module and the battery cell monitoring modules are configured to exchange a set of digital messages according to asynchronous serial data transmission via the data line,
wherein the set of digital messages each include a multiplicity of frames, comprising:
an identification (ID) frame,
one or more data frames, and
a checksum frame including a checksum value calculated based on the data included in the ID frame and the one or more data frames, and

wherein the translator module is configured to:
receive, from the battery cell monitoring modules, a digital message of the set of digital messages;
generate a CAN message based on the digital message by:
inserting data included in the one or more data frames and the checksum frame into a data field of the CAN message; and
inserting an identifier included in the ID frame into an ID field of the CAN message; and

transmit the CAN message to the battery monitoring unit via a CAN bus line.