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:
Jan. 22, 2013
Filed:
Nov. 30, 2010
Peter E. Wu, Lake Forest, CA (US);
Ryan D. Martini, Wolverine Lake, MI (US);
Syed Naqi, Ann Arbor, MI (US);
Jy-jen F. Sah, West Bloomfield, MI (US);
Osama Almasri, Novi, MI (US);
Hanne Buur, Brighton, MI (US);
Andrew M. Zettel, Ann Arbor, MI (US);
Charles J. Van Horn, Novi, MI (US);
Peter E. Wu, Lake Forest, CA (US);
Ryan D. Martini, Wolverine Lake, MI (US);
Syed Naqi, Ann Arbor, MI (US);
Jy-Jen F. Sah, West Bloomfield, MI (US);
Osama Almasri, Novi, MI (US);
Hanne Buur, Brighton, MI (US);
Andrew M. Zettel, Ann Arbor, MI (US);
Charles J. Van Horn, Novi, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A system for robust fault detection in an electrically variable, hydraulically controlled transmission includes independently monitoring hydraulic pressure within a hydraulic control circuit and electric machine rotation for detecting clutch state faults.