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:
Dec. 27, 2007
Applicants:
Layne K. Wiggins, Plymouth, MI (US);
Kenneth P. Dudek, Rochester Hills, MI (US);
Jason Meyer, Dayton, OH (US);
Yann G. Guezennec, Upper Arlington, OH (US);
Inventors:
Layne K. Wiggins, Plymouth, MI (US);
Kenneth P. Dudek, Rochester Hills, MI (US);
Jason Meyer, Dayton, OH (US);
Yann G. Guezennec, Upper Arlington, OH (US);
Assignee:
GM Global Technology Operations, Inc., Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An engine control module comprises a table that outputs a parked VE estimate based on an input parameter when intake and exhaust cam phasers of an engine are in a parked position. A calculation module calculates VE estimate when the intake and exhaust cam phasers are not in a parked position based on the parked VE estimate and a mathematical relationship.