US 12,244,257 B2
Motor control device and method therefor
Jang Hoon Kim, Seoul (KR); and Won Kyu Kim, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 18/266,131
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Dec. 9, 2021, PCT No. PCT/KR2021/018694
§ 371(c)(1), (2) Date Jun. 8, 2023,
PCT Pub. No. WO2022/131686, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 10-2020-0177280 (KR), filed on Dec. 17, 2020; and application No. 10-2020-0180636 (KR), filed on Dec. 22, 2020.
Prior Publication US 2024/0030842 A1, Jan. 25, 2024
Int. Cl. H02P 3/26 (2006.01); H02P 23/14 (2006.01); H02P 23/24 (2016.01); H02P 25/086 (2016.01); H02P 29/024 (2016.01)
CPC H02P 3/26 (2013.01) [H02P 23/14 (2013.01); H02P 23/24 (2016.02); H02P 25/086 (2013.01); H02P 29/024 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A motor control method comprising the steps of:
performing three-phase commutation in a first range section of a motor rotation speed in a brake mode of a motor;
performing two-phase commutation in a second range section of the motor rotation speed;
performing one-phase commutation in a third range section of the motor rotation speed; and
turning off commutation when the motor rotation speed is less than or equal to the first range section.