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. 10, 2006
Filed:
Feb. 04, 2005
Sayeed A. Mir, Saginaw, MI (US);
Paul M. Fisher, Saginaw, MI (US);
Daniel W. Shafer, Linden, MI (US);
Samuel J. Underwood, Amiens, FR;
Sayeed A. Mir, Saginaw, MI (US);
Paul M. Fisher, Saginaw, MI (US);
Daniel W. Shafer, Linden, MI (US);
Samuel J. Underwood, Amiens, FR;
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A method and system for obtaining motor current measurements from a DC bus current of an inverter that drives a pulse width modulated electric machine is disclosed. The method may include sensing a DC bus current in a sensor located on a bus of an inverter; sampling the DC bus current via an analog to digital converter wherein the sampling is controlled by sampling timing that is based on a pulse width modulation timing of the inverter; and determining three AC phase currents of the motor from the sampled DC bus current.