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:
Jul. 04, 2017
Filed:
Mar. 19, 2015
Applicant:
Nsk Ltd., Tokyo, JP;
Inventors:
Assignee:
NSK LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 6/10 (2006.01); B62D 5/04 (2006.01); H02P 25/22 (2006.01); H02P 27/08 (2006.01); H02K 3/28 (2006.01); H02P 6/17 (2016.01); H02P 25/03 (2016.01); H02K 1/14 (2006.01); H02K 1/27 (2006.01); H02K 16/04 (2006.01);
U.S. Cl.
CPC ...
B62D 5/0463 (2013.01); H02K 1/146 (2013.01); H02K 1/27 (2013.01); H02K 3/28 (2013.01); H02P 6/10 (2013.01); H02P 6/17 (2016.02); H02P 25/03 (2016.02); H02P 25/22 (2013.01); H02P 27/08 (2013.01); H02K 16/04 (2013.01); H02K 2213/06 (2013.01);
Abstract
A motor control device includes a motor, a control device, and a motor drive circuit. The motor includes a motor rotor, a motor stator, and a plurality of coil groups divided into a first coil group and a second coil group of at least two systems for each of three phases, and configured to excite a stator core by three-phase alternating currents. In the motor drive circuit, a first motor drive circuit supplies a three-phase AC first motor drive current to the first coil group based on a command value, and a second motor drive circuit supplies a three-phase AC second motor drive current having a phase difference from a phase of the first motor drive current, to the second coil group.