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. 20, 2015
Filed:
Jul. 17, 2014
Fanuc Corporation, Yamanashi, JP;
Kazuomi Maeda, Yamanashi, JP;
FANUC CORPORATION, Yamanashi, JP;
Abstract
In a motor controller according to the present invention, a speed control unitincludes an integrator calculating an integrated value Sm of a speed error ωm-ωm' between a speed command value ωm and a rotation speed ωm′ and generates a torque command value Tm based on ωm-ωm′, a predetermined value, a proportional gain and an integration gain. A speed control unitincludes an integrator calculating an integrated value Ss of a speed error ωs-ωs′ between a speed command value ωs and a rotation speed ωs′ and generates a torque command value Ts based on ωs-ωs′, the predetermined value, a proportional gain and an integration gain. An integrated value selecting unitselects any one of Sm and Ss as the predetermined value, depending on a drive status of a main motorand a sub motor