Patent ID: 9024584
Filing Date: 2015-05-05
Classification: H01M,H02J,H04Q,Y02E

Abstract:
1. A method for setting sequential identification (ID) to a multi-slave battery management system (BMS) in a battery pack, the battery pack including N, wherein N is greater than or equal to 2, slave BMSs having sequential physical locations to control a battery module containing at least one battery and a main BMS to control the N slave BMSs, the method comprising: an initiation step of the main BMS transmitting a trigger signal, which is an initiation signal for ID setting, to a first slave BMS among the N slave BMSs; a transmission step of the first slave BMS receiving the trigger signal and transmitting ID information of the first slave BMS to the main BMS and the trigger signal to a next slave BMS; a follow-up step of sequentially performing a process of receiving the trigger signal and transmitting slave BMS ID information to the main BMS and the trigger signal to a next slave BMS throughout the second slave BMS to the N-1th slave BMS; a termination step of the Nth slave BMS receiving the trigger signal and transmitting ID information of the Nth slave BMS to the main BMS; a new ID transmission step of, when ID information is not transmitted from a slave BMS within a predetermined time, the main BMS transmitting an ID allocating signal including ID information to the slave BMS having not transmitted ID information, that is, an unset slave BMS, to allocate new ID information; and a first setting step of the unset slave BMS setting ID information of the slave BMS in response to the ID allocating signal and transmitting the set ID information of the slave BMS to the main BMS.