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. 16, 2026
Filed:
Feb. 15, 2022
Hitachi Astemo, Ltd., Hitachinaka, JP;
Yasuaki Sato, Hitachinaka, JP;
Keisuke Suzuki, Hitachinaka, JP;
Katsuhiro Hoshino, Hitachinaka, JP;
Hideki Sekiguchi, Hitachinaka, JP;
HITACHI ASTEMO, LTD., Hitachinaka, JP;
Abstract
A motor control device includes: an inverter that supplies an alternating current to a motor mounted on a vehicle; a current detection unit that detects the alternating current; a position detection unit that detects a rotor phase angle of the motor; and an inverter control unit that controls the inverter based on a current value detected by the current detection unit and the rotor phase angle detected by the position detection unit, wherein the inverter control unit, in response to a timing at which vibration of the vehicle is generated, changes a current phase angle of the motor, and makes a cycle of a waveform of a resultant current of the alternating current irregular.