US 12,218,619 B2
System and method for detecting resolver signal for motor control
Do Hyeon Ham, Goyang-si (KR); Ho Jun Shin, Incheon (KR); Hun Kong, Suwon-si (KR); and Jang Ho Won, Hwaseong-si (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed on Nov. 17, 2022, as Appl. No. 17/989,227.
Claims priority of application No. 10-2022-0010341 (KR), filed on Jan. 25, 2022.
Prior Publication US 2023/0238903 A1, Jul. 27, 2023
Int. Cl. H02P 6/18 (2016.01); H02P 21/18 (2016.01)
CPC H02P 6/188 (2013.01) [H02P 21/18 (2016.02)] 13 Claims
OG exemplary drawing
 
1. A system for detecting a resolver signal for controlling a motor, the system comprising:
a resolver configured to generate a resolver output signal of a sine wave or a cosine wave when the motor is driven, and output the resolver output signal to a controller; and
the controller including a first bandpass filter for primarily removing noise introduced into the resolver output signal, a moving average processor for performing a continuous moving average calculation process for a resolver output signal passing through the first bandpass filter, and a lead phase compensator for compensating a phase of a resolver output signal passing through the moving average processor,
wherein the moving average processor is configured to determine the number of pieces of data for moving average for an output signal of the resolver passing through the first bandpass filter by dividing a sampling frequency of a predetermined specific period by a frequency of an output signal of the resolver.