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:
Dec. 30, 2008
Filed:
Nov. 23, 2005
Alan G. Holmes, Clarkston, MI (US);
Michael R. Schmidt, Carmel, IN (US);
Donald Klemen, Carmel, IN (US);
Anthony H. Heap, Ann Arbor, MI (US);
Gregory A. Hubbard, Brighton, MI (US);
Larry T. Nitz, South Lyon, MI (US);
Alan G. Holmes, Clarkston, MI (US);
Michael R. Schmidt, Carmel, IN (US);
Donald Klemen, Carmel, IN (US);
Anthony H. Heap, Ann Arbor, MI (US);
Gregory A. Hubbard, Brighton, MI (US);
Larry T. Nitz, South Lyon, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A hybrid powertrain includes an electrically variable transmission and an internal combustion engine. The transmission is operable to provide a continuously variable mode of operation. The engine is capable of variable displacement in that at least half of the cylinders contained therein are deactivatable. Additionally the internal combustion engine operates with a late intake valve closing strategy to increase the peak efficiency of the internal combustion engine.