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:
Oct. 30, 2012
Filed:
Oct. 02, 2007
Ryan D. Martini, Royal Oak, MI (US);
Charles J Van Horn, Novi, MI (US);
Peter E. Wu, Brighton, MI (US);
Andrew M. Zettel, Ann Arbor, MI (US);
Osama Almasri, Novi, MI (US);
Jy-jen F. Sah, West Bloomfield, MI (US);
Ryan D. Martini, Royal Oak, MI (US);
Charles J Van Horn, Novi, MI (US);
Peter E. Wu, Brighton, MI (US);
Andrew M. Zettel, Ann Arbor, MI (US);
Osama Almasri, Novi, MI (US);
Jy-Jen F. Sah, West Bloomfield, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
Control of operation of a hybrid powertrain is provided, wherein mechanical power flow to an output is controlled through selective actuation of torque-transfer clutches. Electric machines are coupled to an energy storage system for electric power flow. The electro-mechanical transmission is operated in a continuously variable operating range state, and, operation of the transmission is monitored. Absence of a mismatch between the commanded continuously variable operating range state and an actual operating state of the transmission is determined. Presence of a mismatch between the commanded operating range state and the actual operating state of the transmission may be determined. Operation of the powertrain is modified when a mismatch between the commanded operating range state and the actual operating state of the transmission is detected.