Patent ID: 11928008
Assignee: LG ENERGY SOLUTION, LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 9:
10. A battery management system managing a battery pack including a plurality of battery cells, the battery management system comprising:
at least one application-specific integrated circuit (ASIC) measuring voltages of the plurality of battery cells and performing cell balancing for the plurality of battery cells; and
a main control unit (MCU) controlling the at least one ASIC,
wherein the MCU includes:
a software area including a bootloader area and an application area, wherein either of the bootloader area and the application area is configured to:
generate a watchdog refresh request,
transmit the watchdog refresh request to an external watchdog module, and

determine whether a received refresh request timing of the transmitted watchdog refresh request corresponds to a window open time in which a watchdog refresh is able to be performed by the external watchdog module; and
a shared memory area storing a last watchdog refresh timing transmitted from an external watchdog module, and

the at least one ASIC includes:
an external watchdog module receiving the generated watchdog refresh request and refreshing a watchdog based on the watchdog refresh request in response to the received refresh request timing corresponding to the window open time as a result of the determination of the external watchdog module.