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. 22, 2012
Filed:
Aug. 14, 2009
Applicants:
Chia-chou Yeh, Lomita, CA (US);
Brian A. Welchko, Torrance, CA (US);
Steven E. Schulz, Torrance, CA (US);
Inventors:
Chia-Chou Yeh, Lomita, CA (US);
Brian A. Welchko, Torrance, CA (US);
Steven E. Schulz, Torrance, CA (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Methods, system and apparatus are provided for estimating rotor angular position and angular velocity during a position sensor fault, and for verifying the accuracy or inaccuracy of a position sensor's outputs based on the estimated rotor angular position and angular velocity of the rotor following a position sensor fault.