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:
Apr. 03, 2012
Filed:
Nov. 26, 2008
Martin L. Willi, Dunlap, IL (US);
Scott B. Fiveland, Metamora, IL (US);
David T. Montgomery, Edelstein, IL (US);
Weidong Gong, Dunlap, IL (US);
Martin L. Willi, Dunlap, IL (US);
Scott B. Fiveland, Metamora, IL (US);
David T. Montgomery, Edelstein, IL (US);
Weidong Gong, Dunlap, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A control system for an engine having a cylinder is disclosed having an engine valve movable to regulate a fluid flow of the cylinder and an actuator associated with the engine valve. The control system also has a sensor configured to generate a signal indicative of an amount of an air/fuel mixture remaining within the cylinder after completion of a first combustion event and a controller in communication with the actuator and the sensor. The controller may be configured to compare the amount with a desired amount, and to selectively regulate the actuator to adjust a timing of the engine valve associated with a subsequent combustion event based on the comparison.