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:
Mar. 29, 2011
Filed:
Apr. 02, 2008
Patrick A. O'gorman, Grayslake, IL (US);
Rene Vivanco, Peachtree City, GA (US);
Alex Kurnia, Lake Zurich, IL (US);
Patrick A. O'Gorman, Grayslake, IL (US);
Rene Vivanco, Peachtree City, GA (US);
Alex Kurnia, Lake Zurich, IL (US);
Continental Automotive Systems, Inc., Auburn Hills, MI (US);
Abstract
Methods and systems for detecting an angular position of an electric motor are disclosed, including sending an electrical pulse through a stator coil of the electric motor, determining an approximate angular position of a rotor of the electric motor in response to detecting an timing of a returning electrical pulse from the stator coil, the timing of the returning electrical pulse being indicative of the angular position of the rotor; and determining an accurate position of the rotor in response to sensing a transition of a digital sensor in response to the rotor rotating relative to the stator, the transition being indicative of the accurate position.