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:
Apr. 05, 2005
Filed:
Jan. 14, 2003
Gabriel Gallegos-lopez, Alexandria, IN (US);
James E. Walters, Carmel, IN (US);
Fani S. Gunawan, Westfield, IN (US);
Gabriel Gallegos-Lopez, Alexandria, IN (US);
James E. Walters, Carmel, IN (US);
Fani S. Gunawan, Westfield, IN (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
Method for providing current regulation and a current controller () for an electric machine () are provided. The method includes receiving a state vector time signal () indicative of a time interval when a switching state vector is activated and comparing the received state vector time signal to a commanded state vector time signal (). The method further includes using the result of the comparison to regulate a direct axis current signal () input to an electric machine controller. The current controller () includes a state vector error comparator for comparing a received state vector time signal to a commanded state vector time signal and generating a state vector time error. This error is processed by a PI controller, coupled to the state vector error comparator, for providing a direct axis current signal output responsive to the state vector time error to an electric machine.