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:
Jun. 14, 2005
Filed:
Jun. 20, 2003
Takayoshi Matsuo, Brown Deer, WI (US);
Satoshi Tanabe, Yokosuka, JP;
Masazumi Yoshino, Yokohama, JP;
Takayoshi Matsuo, Brown Deer, WI (US);
Satoshi Tanabe, Yokosuka, JP;
Masazumi Yoshino, Yokohama, JP;
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Reliance Electric Limited, Yokohama, JP;
Abstract
A motor controller is provided including a synchronous motor, a feed back detector for detecting the position and velocity of the rotor of the synchronous motor, a detector for detecting a magnetic pole position of the rotor of the synchronous motor, an inverter for controlling an electric power to be supplied to the synchronous motor, an estimator for estimating the magnetic pole position of the rotor of the synchronous motor, and a detector for detecting the abnormality of the feed back detector.