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. 04, 2011
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 first cylinder and a second cylinder is disclosed having a first engine valve movable to regulate a fluid flow of the first cylinder and a first actuator associated with the first engine valve. The control system also has a second engine valve movable to regulate a fluid flow of the second cylinder and a sensor configured to generate a signal indicative of a pressure within the first cylinder. The control system also has a controller that is in communication with the first actuator and the sensor. The controller is configured to compare the pressure within the first cylinder with a desired pressure and selectively regulate the first actuator to adjust a timing of the first engine valve independently of the timing of the second engine valve based on the comparison.