The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 2026
Filed:
Feb. 15, 2022
Applicant:
Hitachi Astemo, Ltd., Hitachinaka, JP;
Inventors:
Assignee:
HITACHI ASTEMO, LTD., Hitachinaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 7/00 (2016.01); B60L 15/02 (2006.01); B62D 5/04 (2006.01); H02P 21/05 (2006.01); H02P 21/22 (2016.01);
U.S. Cl.
CPC ...
B62D 5/0472 (2013.01); B60L 15/025 (2013.01); H02P 21/05 (2013.01); H02P 21/22 (2016.02); B60L 2240/423 (2013.01); B60L 2240/429 (2013.01);
Abstract
A motor control device includes: an inverter circuit that drives a motor; and a control unit that generates a current command value on the basis of a torque command to the motor, and outputs a PWM pulse to the inverter circuit on the basis of the current command value to control the inverter circuit, and the control unit sets a phase shift amount of a carrier wave of the PWM pulse, estimates a fluctuating torque according to the phase shift amount, and corrects the current command value on the basis of the fluctuating torque.