US 11,863,095 B2
Motor driving device and method
Kang Ho Jeong, Gyeonggi-do (KR); Sang Cheol Shin, Gyeonggi-do (KR); Yong Jae Lee, Gyeonggi-do (KR); Jung Ik Ha, Seoul (KR); Hyeon Gyu Choi, Gyeonggi-do (KR); and Jae Hoon Shim, Gyeonggi-do (KR)
Assigned to Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and Seoul National University R & DB Foundation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); Kia Motors Corporation, Seoul (KR); and Seoul National University R&DB Foundation, Seoul (KR)
Filed on Nov. 12, 2020, as Appl. No. 17/096,085.
Claims priority of application No. 10-2020-0113080 (KR), filed on Sep. 4, 2020.
Prior Publication US 2022/0077807 A1, Mar. 10, 2022
Int. Cl. H02P 27/08 (2006.01); H02P 21/22 (2016.01)
CPC H02P 27/085 (2013.01) [H02P 21/22 (2016.02)] 12 Claims
OG exemplary drawing
 
1. A motor driving device that drives a motor having a plurality of windings corresponding to a plurality of phases, the motor driving device comprising:
a first inverter configured to include a plurality of first switching elements and connected to first stages of the plurality of windings;
a second inverter configured to include a plurality of second switching elements and connected to second stages of the plurality of windings; and
a controller configured to fix switching states of the second switching elements which has larger switching loss than the first switching elements and switch the first switching elements to compose target voltage vectors when the motor is driven in an open end winding type by operating the first inverter and the second inverter in a space vector pulse width modulation mode.