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. 16, 2007
Filed:
Aug. 04, 2006
Nitinkumar R. Patel, Cypress, CA (US);
Bon-ho Bae, Torrance, CA (US);
James M. Nagashima, Cerritos, CA (US);
Tae-suk Kwon, Sujieup Yongin, KR;
Seung Ki Sul, Seoul, KR;
Nitinkumar R. Patel, Cypress, CA (US);
Bon-Ho Bae, Torrance, CA (US);
James M. Nagashima, Cerritos, CA (US);
Tae-Suk Kwon, Sujieup Yongin, KR;
Seung Ki Sul, Seoul, KR;
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
Methods and system are provided for controlling permanent magnet motor drive systems. The method comprises the steps of adjusting a first current command in response to a first voltage error to produce a first adjusted current, adjusting a second current command in response to a second voltage error to produce a second adjusted current, limiting each of the first and second adjusted current below a maximum current, converting the first adjusted current to a first potential, converting the second current command to a second potential, and supplying the first and second potentials to the permanent magnet motor. The first voltage error is derived from the second current command, and the second voltage error is derived from the first current command.