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:
Apr. 12, 2022
Filed:
Sep. 24, 2019
Applicant:
Advics Co., Ltd., Kariya, JP;
Inventor:
Atsushi Takahashi, Okazaki, JP;
Assignee:
ADVICS CO., LTD., Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 21/02 (2006.01); H02P 21/22 (2016.01);
U.S. Cl.
CPC ...
H02P 21/22 (2016.02); H02P 2207/05 (2013.01);
Abstract
A motor control device includes a command current derivation unit that derives a command current vector based on a command torque for a brushless motor, a phase difference derivation unit that derives a phase difference between a direction of a real d-axis of rotating coordinates of vector control and a direction of an estimated d-axis thereof, a change unit that changes a direction of the command current vector derived by the command current derivation unit according to the phase difference, and a drive control unit that drives the brushless motor based on the command current vector whose direction is changed by the change unit.