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. 14, 2006
Filed:
Feb. 10, 2003
Garold P Myers, Northville, MI (US);
Michael W. Degner, Novi, MI (US);
Garold P Myers, Northville, MI (US);
Michael W. Degner, Novi, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method of compensation for current-sensor gain errors in an electric machine driveincludes a high frequency carrier signal electrically injected into the electric machineA current-sensor signal of the electric machineis determined. The current-sensor signal is separated into current-sensor carrier signal negative and current-sensor carrier signal positive sequence reference frames. A proportional compensator signal for one of the current-sensor carrier signal reference frames is generated in a feedback loopA magnitude signal of another one of the current-sensor carrier signal reference frames is generated in a different feedback loop