US 12,237,784 B2
Motor control device
Takami Suzuki, Hitachinaka (JP); Kohei Onishi, Hitachinaka (JP); Tomoyuki Dansako, Hitachinaka (JP); Tomofumi Hayashi, Tokyo (JP); Satoshi Fujishiro, Tokyo (JP); and Yoshihiro Ito, Tokyo (JP)
Assigned to HITACHI ASTEMO, LTD., Hitachinaka (JP); and HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by Hitachi Astemo, Ltd., Hitachinaka (JP); and HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Mar. 28, 2023, as Appl. No. 18/191,416.
Claims priority of application No. 2022-051824 (JP), filed on Mar. 28, 2022.
Prior Publication US 2023/0308035 A1, Sep. 28, 2023
Int. Cl. H02P 21/14 (2016.01); H02P 21/00 (2016.01); H02P 21/20 (2016.01); H02P 21/22 (2016.01)
CPC H02P 21/141 (2013.01) [H02P 21/0089 (2013.01); H02P 21/20 (2016.02); H02P 21/22 (2016.02)] 5 Claims
OG exemplary drawing
 
1. A motor control device comprising:
a magnetic-flux command value generator configured to generate a magnetic-flux command value based on a torque-command value; and
a current-command value generator configured to generate a current-command value on the basis of the magnetic-flux command value, wherein
the magnetic-flux command value generator comprises:
a magnetic-flux command calculator configured to calculate a pre-compensation magnetic-flux command value on the basis of the torque-command value;
a feedback-value calculator configured to calculate a magnetic-flux feedback value on the basis of a state quantity of a motor;
a magnetic-flux compensation value calculator configured to calculate a magnetic-flux compensation value using a control gain on the basis of a deviation between the pre-compensation magnetic-flux command value and the magnetic-flux feedback value;
a magnetic-flux command value calculator configured to calculate the magnetic-flux command value from the pre-compensation magnetic-flux command value on the basis of the magnetic-flux compensation value; and
a control-gain changer configured to change the control gain on the basis of the state quantity.