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:
Oct. 18, 2016
Filed:
Sep. 15, 2015
Denso Corporation, Kariya, Aichi-pref., JP;
Yosuke Ogi, Okazaki, JP;
Daisuke Kobayashi, Obu, JP;
DENSO CORPORATION, Kariya, Aichi-pref., JP;
Abstract
A motor control device for controlling a multiphase brushless motor in a vector control manner includes: a current command value generation unit that generates q-axis and d-axis current command values; a controller that calculates q-axis and d-axis voltage command values; a saturation guard unit that corrects the q-axis or d-axis voltage command value to set a magnitude of a voltage vector of the q-axis or d-axis voltage command value to be equal to or smaller than a predetermined voltage guard value; and a current command value limiting unit that limits the q-axis or d-axis current command value using a current limit gain and a current guard value, which are calculated based on a voltage saturation amount as the magnitude of the voltage vector of the q-axis or d-axis voltage command value corrected by the saturation guard unit.