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. 05, 2013
Filed:
Jun. 11, 2008
Constantin C. Stancu, Anaheim, CA (US);
Silva Hiti, Redondo Beach, CA (US);
Robert T. Dawsey, Torrance, CA (US);
Erik Hatch, Cypress, CA (US);
Matthew D. Laba, Oakland, MI (US);
Peter J. Savagian, Bloomfield Hills, MI (US);
Constantin C. Stancu, Anaheim, CA (US);
Silva Hiti, Redondo Beach, CA (US);
Robert T. Dawsey, Torrance, CA (US);
Erik Hatch, Cypress, CA (US);
Matthew D. Laba, Oakland, MI (US);
Peter J. Savagian, Bloomfield Hills, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
Systems and methods are provided for an automotive drive system using an absolute position sensor for field-oriented control of an induction motor. An automotive drive system comprises an induction motor having a rotor, and a position sensor coupled to the induction motor. The position sensor is configured to sense an absolute angular position of the rotor. A processor may be coupled to the position sensor and configured to determine a relative angular position of the rotor based on a difference between the absolute angular position and an initial angular position obtained when the induction motor is started. A controller may be coupled to the induction motor and the processor and configured to provide field-oriented control of the induction motor based on the relative angular position of the rotor.