US 12,034,130 B2
Battery pack management device
Chang-Hyun Sung, Daejeon (KR); Jae-Dong Park, Daejeon (KR); Sang-Hoon Lee, Daejeon (KR); and Yean-Sik Choi, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
Filed on Feb. 9, 2023, as Appl. No. 18/107,678.
Application 18/107,678 is a continuation of application No. 17/189,729, filed on Mar. 2, 2021, granted, now 11,695,164.
Application 17/189,729 is a continuation of application No. 16/342,885, granted, now 10,971,763, issued on Apr. 6, 2021, previously published as PCT/KR2018/006911, filed on Jun. 19, 2018.
Claims priority of application No. 10-2017-0085997 (KR), filed on Jul. 6, 2017.
Prior Publication US 2023/0198030 A1, Jun. 22, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 10/42 (2006.01); B60L 3/12 (2006.01); B60L 50/50 (2019.01); H01M 10/48 (2006.01); H02J 7/00 (2006.01); H02J 13/00 (2006.01)
CPC H01M 10/425 (2013.01) [B60L 50/50 (2019.02); H01M 10/42 (2013.01); H01M 10/48 (2013.01); H01M 10/482 (2013.01); H01M 10/486 (2013.01); B60L 3/12 (2013.01); B60L 2240/54 (2013.01); B60L 2240/80 (2013.01); H01M 2010/4271 (2013.01); H01M 2010/4278 (2013.01); H01M 2220/20 (2013.01); H02J 7/0018 (2013.01); H02J 13/00022 (2020.01)] 11 Claims
OG exemplary drawing
 
1. A battery pack management device, comprising:
a master battery management system (BMS) including:
an external communication unit configured to transmit and receive a signal to and from an external device of a battery pack, the battery pack including a battery module and being mountable on a vehicle,
an internal communication unit configured to transmit and receive a wireless communication signal to and from a slave BMS provided in the battery pack; and
a controller programmed to process data received through the external communication unit and the internal communication unit; and
the slave BMS including:
a state measurement module configured to measure state information of at least one of a voltage and a temperature of the battery module;
a wireless communication module configured to transmit and receive a wireless communication signal to and from the master BMS; and
a control module programmed to:
control an on/off time of the wireless communication module based on information of the vehicle,
maintain a predetermined turn-off time of the wireless communication module when the temperature of the battery module is between a first reference temperature and a second reference temperature,
increase a turn-off time of the wireless communication module when the temperature of the battery module is below the first reference temperature, and
decrease a turn-off time of the wireless communication module when the temperature of the battery module is above the second reference temperature.