US 12,407,176 B2
Battery management apparatus
Hyeon-Jin Song, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 17/637,883
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Sep. 16, 2020, PCT No. PCT/KR2020/012508
§ 371(c)(1), (2) Date Feb. 24, 2022,
PCT Pub. No. WO2021/066357, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 10-2019-0123403 (KR), filed on Oct. 4, 2019.
Prior Publication US 2022/0317206 A1, Oct. 6, 2022
Int. Cl. H02J 7/00 (2006.01); G01R 1/20 (2006.01); G01R 31/64 (2020.01); H01M 10/42 (2006.01); H01M 10/48 (2006.01)
CPC H02J 7/0047 (2013.01) [G01R 1/203 (2013.01); G01R 31/64 (2020.01); H01M 10/4264 (2013.01); H01M 10/482 (2013.01); H02J 7/0013 (2013.01); H01M 2010/4271 (2013.01); H02J 2207/20 (2020.01)] 11 Claims
OG exemplary drawing
 
1. A battery management apparatus, comprising:
an inverter connected to a battery cell and including a plurality of switches, the inverter configured to convert a DC current output from the battery cell into an AC current according to respective operation states of the plurality of switches;
a sensor connected to a diagnosis line at which the AC current is output, the sensor configured to measure a voltage of the diagnosis line and output the measured voltage; and
a controller including a plurality of capacitors connected to the diagnosis line, wherein the controller is configured to:
control the respective operation states of the plurality of switches;
receive the measured voltage from the sensor; and
diagnose a state of the plurality of capacitors based on the received measured voltage.