Engine control system having pressure-based timing

Patent · Tue Oct 04 00:00:00 EDT 2011

OSTI ID:1029314

Willi, Martin L ^[1]; Fiveland, Scott B ^[2]; Montgomery, David T ^[3]; Gong, Weidong ^[1]

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1. Dunlap, IL
2. Metamora, IL
3. Edelstein, IL

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.

• Research Organization: Caterpillar Inc., Deerfield, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: FC02-01CH11079
• Assignee: Caterpillar Inc. (Peoria, IL)
• Patent Number(s): 8,028,679
• Application Number: 12/292,832
• OSTI ID: 1029314
• Country of Publication: United States
• Language: English

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33 ADVANCED PROPULSION SYSTEMS