US 11,789,084 B2
Wireless battery control system, method and battery pack for assigning ID to a plurality of slave management modules
Chang-Hyun Sung, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 16/629,444
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Feb. 18, 2019, PCT No. PCT/KR2019/001928
§ 371(c)(1), (2) Date Jan. 8, 2020,
PCT Pub. No. WO2019/164203, PCT Pub. Date Aug. 29, 2019.
Claims priority of application No. 10-2018-0021224 (KR), filed on Feb. 22, 2018; and application No. 10-2019-0016885 (KR), filed on Feb. 13, 2019.
Prior Publication US 2020/0200828 A1, Jun. 25, 2020
Int. Cl. B60L 53/12 (2019.01); B60L 58/21 (2019.01); G01R 31/382 (2019.01); H04B 17/318 (2015.01); H04W 84/20 (2009.01)
CPC G01R 31/382 (2019.01) [B60L 53/12 (2019.02); B60L 58/21 (2019.02); H04B 17/318 (2015.01); H04W 84/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wireless battery control system for a battery pack including first to Nth battery modules, the wireless battery control system comprising:
a master management module; and
first to Nth slave management modules configured to respectively monitor a state of each of the first to Nth battery modules,
wherein the first to Nth slave management modules are sequentially positioned so that distances from the master management module are different from each other,
wherein, when the master management module enters an ID assignment mode, the master management module is configured to:
initialize an operation count, and
wirelessly transmit a preparation signal,
wherein, in response to receiving the preparation signal from the master management module or another slave management module, each slave management module is further configured, only while operating in a standby mode, to measure a Received Signal Strength Indicator (RSSI) of the received preparation signal and to wirelessly transmit the measured RSSI of the received preparation signal to the master management module,
wherein the master management module is further configured to wirelessly transmit an ID associated with the operation count to a slave management module having wirelessly transmitted a maximum RSSI among at least one RSSI of the received preparation signal measured and transmitted respectively only by at least one slave management module in the standby mode among the first to Nth slave management modules,
wherein the slave management module having wirelessly transmitted the maximum RSSI among the at least one slave management module in the standby mode is further configured to wirelessly transmit the received preparation signal and to terminate operating in the standby mode, in response to receiving the ID wirelessly transmitted thereto from the master management module,
wherein the master management module is further configured to increase the operation count by 1 after the master management module wirelessly transmits the ID to the slave management module having wirelessly transmitted the maximum RSSI among the at least one slave management module in the standby mode, and
wherein N is a natural number of 2 or greater.