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, 2006
Filed:
Jan. 23, 2002
Sayeed A. Mir, Saginaw, MI (US);
Dennis B. Skellenger, Vassar, MI (US);
Roy Alan Mccann, Saginaw, MI (US);
Mark Philip Colosky, Vassar, MI (US);
Sayeed A. Mir, Saginaw, MI (US);
Dennis B. Skellenger, Vassar, MI (US);
Roy Alan McCann, Saginaw, MI (US);
Mark Philip Colosky, Vassar, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A method and system for determining a torque current in an electric machine coupled to a polyphase bus. The method comprises: detecting a rotational position of the electric machine with a position encoder; controlling an inverter comprising a plurality of switching devices, the inverter having an input coupled to a direct current bus, and an output coupled to the polyphase bus. Where the inverter is responsive to commands from a controller coupled to the inverter and to the position encoder. The method also includes measuring a current from the direct current bus; and capturing the current at a predefined interval of time.