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:
Feb. 26, 2013
Filed:
Apr. 28, 2010
Christopher E. Whitney, Commerce, MI (US);
Jun LU, Novi, MI (US);
Michael J. Pitsch, Ann Arbor, MI (US);
Ryan Goode, Howell, MI (US);
Krishnendu Kar, South Lyon, MI (US);
Christopher E. Whitney, Commerce, MI (US);
Jun Lu, Novi, MI (US);
Michael J. Pitsch, Ann Arbor, MI (US);
Ryan Goode, Howell, MI (US);
Krishnendu Kar, South Lyon, MI (US);
Abstract
An engine control system includes a fuel cutoff (FCO) module, a fuel control module, and a spark control module. The FCO module, when a FCO event is disabled, determines a feed-forward (FF) number of cylinders to offset a delay period associated with supplying fuel to the cylinders of an engine and selectively maintains a FCO torque request at a predetermined torque. The fuel control module commands fuel be supplied to the FF number of cylinders of the engine when the FCO event is disabled. The spark control module maintains a spark timing of the FF number of cylinders at a fully retarded spark timing based on the FCO torque request.