Battery management system with synchronized wake-up signal reception period and communication method thereof

Abstract

A battery management system for a battery pack having a plurality of battery modules includes a master battery management system disposed in the battery pack and configured to transmit a wake-up signal, and slave battery management systems each configured to periodically check for the wake-up signal at a reception period and to transmit state information of a corresponding one of the battery modules to the master battery management system if the wake-up signal is received. A first slave battery management system, among the slave battery management systems, is configured to transmit a request signal to the master battery management system at a start of the reception period of the first slave battery management system. Based on the request signal, a second slave battery management system is configured to synchronize the reception period of the second slave battery management system with the reception period of the first slave battery management system.

CPC Classifications