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:
Feb. 20, 2018
Filed:
May. 12, 2017
Denso Corporation, Kariya, Aichi-pref., JP;
Koji Irie, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
In a control apparatus for a rotating electric machine, a phase feedback gain is set such that first and second conditions are met. The first condition is that gain margin and phase margin in frequency characteristics of a first loop transfer function are ensured. The second condition is that a gain intersection angular frequency in frequency characteristics of the first loop transfer function is lower than respective resonance angular frequency in frequency characteristics of first and second transfer functions. An amplitude feedback gain is set such that third and fourth conditions are met. The third condition is that gain margin and phase margin in frequency characteristics of a second loop transfer function are ensured. The fourth condition is that a gain intersection angular frequency in frequency characteristics of a second loop transfer function is lower than respective resonance angular frequency in frequency characteristics of third and fourth transfer functions.