US 11,705,833 B2
Motor controller, motor control method and computer program product for vehicle assist control
Yu-Ting Lin, Taoyuan (TW); and Cheng-Tsung Lin, Taoyuan (TW)
Assigned to CHROMA ATE INC., Taoyuan (TW)
Filed by CHROMA ATE INC., Taoyuan (TW)
Filed on Mar. 18, 2022, as Appl. No. 17/697,978.
Claims priority of application No. 110110342 (TW), filed on Mar. 23, 2021.
Prior Publication US 2022/0311363 A1, Sep. 29, 2022
Int. Cl. H02P 21/22 (2016.01); H02P 6/08 (2016.01); H02P 25/026 (2016.01); H02P 9/00 (2006.01)
CPC H02P 6/08 (2013.01) [H02P 9/009 (2013.01); H02P 25/026 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A motor controller for vehicle assist control, generating an assist torque command for a motor device to perform vehicle assist control according to an execution command of a vehicle assist determination unit as well as a rotor position signal and a rotor speed signal of the motor device, the motor controller comprising:
a first consolidation unit, generating a position offset signal according to an original position signal and the rotor position signal of the motor device;
a first gain unit, performing a position ratio calculation based on the position offset signal to generate a front-order torque command;
a second gain unit, performing a speed ratio calculation based on the rotor speed signal to generate a torque damping command; and
a second consolidation unit, generating the assist torque command according to the front-order torque command and the torque damping command used as negative feedback.