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:
Jun. 30, 2009
Filed:
Oct. 08, 2008
Applicants:
Peter E. Wu, Brighton, MI (US);
Charles J Van Horn, Novi, MI (US);
Wei D. Wang, Troy, MI (US);
Syed Naqi, Ann Arbor, MI (US);
Inventors:
Peter E. Wu, Brighton, MI (US);
Charles J Van Horn, Novi, MI (US);
Wei D. Wang, Troy, MI (US);
Syed Naqi, Ann Arbor, MI (US);
Assignees:
GM Global Technology Operations, Inc., Detroit, MI (US);
Daimler AG, Stuttgart, DE;
Chrysler LLC, Auburn Hills, MI (US);
Bayerishe Motoren Werke Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for detecting speed faults in a hybrid powertrain having engine and electric machine speed inputs includes directly sensing the engine and machine speeds and performing comparisons of sensed engine speed with engine speed determined based upon the machine speeds.