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:
Nov. 03, 2020
Filed:
Sep. 13, 2017
Applicant:
Jtekt Corporation, Osaka, JP;
Inventor:
Hiroshi Sumasu, Kashihara, JP;
Assignee:
JTEKT CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 21/22 (2016.01); H02P 21/00 (2016.01); H02P 21/16 (2016.01); H02P 25/03 (2016.01); H02P 21/18 (2016.01); H02P 6/10 (2006.01); H02P 25/026 (2016.01); H02P 27/12 (2006.01); B62D 5/00 (2006.01); B62D 5/04 (2006.01);
U.S. Cl.
CPC ...
H02P 21/22 (2016.02); H02P 6/10 (2013.01); H02P 21/0085 (2013.01); H02P 21/16 (2016.02); H02P 21/18 (2016.02); H02P 25/026 (2013.01); H02P 25/03 (2016.02); H02P 27/12 (2013.01); B62D 5/008 (2013.01); B62D 5/0454 (2013.01); H02P 2205/05 (2013.01);
Abstract
A microcomputer includes a current command value setting unit configured to set a two-phase current command value in a two-phase rotating coordinate system for each of PWM cycles in a current control cycle, and an open-loop control unit configured to calculate a two-phase voltage command value for each of the PWM cycles, according to a motor voltage equation, based on the two-phase current command value for each of the PWM cycles that is set by the current command value setting unit and a rotation speed of an electric motor. The two-phase voltage command value is a command value of voltage that is to be applied to the electric motor.