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:
May. 09, 2017
Filed:
Jun. 28, 2013
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Wisconsin Alumni Research Foundation, Madison, WI (US);
Takashi Fukushige, Kanagawa, JP;
Chen-yen Yu, Cupertino, CA (US);
Robert D. Lorenz, Madison, WI (US);
Nissan Motor Co., Ltd., Yokohama, JP;
Wisconsin Alumni Research Foundation, Madison, WI (US);
Abstract
A variable magnetization machine controller has a current command module, a magnetization module and a reducing current module. The current command module computes a vector current command in a dq axis based on a torque command. The magnetization module applies a magnetization control pulse to a d-axis current of the vector current command. Thus, the reducing current module applies a reducing current to a q-axis current of the vector current command based on the torque command and one of an estimated torque of the variable magnetization machine and a measured torque of the variable magnetization machine.