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:
Aug. 30, 2022
Filed:
Jan. 18, 2019
Applicant:
Nsk Ltd., Tokyo, JP;
Inventor:
Mitsunori Okubo, Maebashi, JP;
Assignee:
NSK LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 1/04 (2006.01); H02P 5/00 (2016.01); H02P 7/00 (2016.01); H02P 29/028 (2016.01); B62D 5/04 (2006.01); H02P 27/06 (2006.01);
U.S. Cl.
CPC ...
H02P 29/028 (2013.01); B62D 5/0463 (2013.01); B62D 5/0481 (2013.01); B62D 5/0484 (2013.01); H02P 27/06 (2013.01);
Abstract
A closed-loop circuit is detected based on a short-circuit failure of a motor control switching element of a motor drive circuit and a cutoff switching element. A motor control device including a motor, a motor drive circuit () that is connected to a power supply device and the motor and controls the output of the motor, and a processing unit for detecting a closed-loop circuit formed by the motor and the motor drive circuit () based on a short-circuit failure of switching elements arranged in the motor drive circuit ().