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. 09, 2019
Filed:
Aug. 10, 2018
Applicant:
Jtekt Corporation, Osaka-shi, Osaka, JP;
Inventor:
Hiroshi Sumasu, Kashihara, JP;
Assignee:
JTEKT CORPORATION, Osaka-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 27/08 (2006.01); H02P 21/22 (2016.01); B62D 5/04 (2006.01); H02M 1/44 (2007.01); H02P 21/00 (2016.01); B62D 6/10 (2006.01);
U.S. Cl.
CPC ...
H02P 27/08 (2013.01); B62D 5/04 (2013.01); H02M 1/44 (2013.01); H02P 21/00 (2013.01); H02P 21/22 (2016.02); B62D 5/0409 (2013.01); B62D 5/0463 (2013.01); B62D 6/10 (2013.01);
Abstract
A motor control unit includes a PWM count changer that when, out of all possible combinations of any two of three phases, at least one of the combinations has a difference in PWM count less than a threshold value, changes a PWM count of at least one of the two phases of the at least one of the combinations for each of PWM periods within a current control period, without changing the total of the PWM counts of the at least one of the two phases within the current control period, such that each of the combinations has a difference in PWM count greater than or equal to the threshold value.