US 12,243,986 B2
Wireless communication method in battery pack and master BMS providing the method
Ho Byung Yoon, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
Filed on Apr. 5, 2024, as Appl. No. 18/628,302.
Application 18/628,302 is a continuation of application No. 17/928,495, granted, now 11,955,606, previously published as PCT/KR2021/010597, filed on Aug. 10, 2021.
Claims priority of application No. 10-2020-0121337 (KR), filed on Sep. 21, 2020.
Prior Publication US 2024/0250313 A1, Jul. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 10/42 (2006.01); H04B 1/7143 (2011.01); H04B 1/715 (2011.01)
CPC H01M 10/4207 (2013.01) [H04B 1/7143 (2013.01); H04B 1/715 (2013.01); H01M 2010/4271 (2013.01); H01M 2010/4278 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A battery management system (BMS) comprising a master BMS configured to wirelessly communicate with one or more slave BMS in a battery pack, the master BMS comprising:
a controller configured to generate a frequency hopping sequence by selecting a plurality of hopping channels from among a plurality of channels existing in a frequency bandwidth;
a channel analyzer configured to measure noise intensity of the plurality of channels existing in the frequency bandwidth,
wherein the controller is configured to, for each selected hopping channel of the frequency hopping sequence, calculate a signal intensity of the selected hopping channel based on a noise intensity of a channel corresponding to the selected hopping channel and a reference signal-to-noise (SNR) value; and
a communicator configured to wirelessly communicate with the one or more slave BMS according to the frequency hopping sequence by control of the controller.