Accurate calculation of the conditions (i.e., temperature, pressure, and enthalpy) of internal combustion engine cylinder exhaust is critical to the modeling of, and control design development for, gas exchange in modern and future diesel engine systems. In this paper, a physically-based model for cylinder exhaust temperature, pressure, and enthalpy for engines equipped with variable valve actuation is outlined and extensively validated against experimental data from 193 operating points. The model takes the known conditions when the intake valves close and steps through a polytropic compression process, constant pressure combustion process beginning at top-dead center, and a polytropic expansion process to achieve the desired results when the exhaust valves open. To incorporate the flexibility of modulating the intake valve opening and closing, the effective compression ratio is used to establish the conditions when the intake valves close. Experimental model validation, via a unique multi-cylinder diesel engine utilizing fully flexible intake valve actuation, shows that the model captures the influences of all of the model inputs: engine speed, charge flow, total fueling quantity, intake manifold pressure, and effective compression ratio.
Skip Nav Destination
ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control
October 31–November 2, 2011
Arlington, Virginia, USA
Conference Sponsors:
- Dynamic Systems and Control Division
ISBN:
978-0-7918-5476-1
PROCEEDINGS PAPER
Physics Based Control Oriented Modeling of Exhaust Gas Enthalpy for Engines Utilizing Variable Valve Actuation
Ed Koeberlein,
Ed Koeberlein
Purdue University, West Lafayette, IN
Search for other works by this author on:
Lyle Kocher,
Lyle Kocher
Purdue University, West Lafayette, IN
Search for other works by this author on:
Dan Van Alstine,
Dan Van Alstine
Purdue University, West Lafayette, IN
Search for other works by this author on:
Karla Stricker,
Karla Stricker
Purdue University, West Lafayette, IN
Search for other works by this author on:
Greg Shaver
Greg Shaver
Purdue University, West Lafayette, IN
Search for other works by this author on:
Ed Koeberlein
Purdue University, West Lafayette, IN
Lyle Kocher
Purdue University, West Lafayette, IN
Dan Van Alstine
Purdue University, West Lafayette, IN
Karla Stricker
Purdue University, West Lafayette, IN
Greg Shaver
Purdue University, West Lafayette, IN
Paper No:
DSCC2011-6001, pp. 627-634; 8 pages
Published Online:
May 5, 2012
Citation
Koeberlein, E, Kocher, L, Van Alstine, D, Stricker, K, & Shaver, G. "Physics Based Control Oriented Modeling of Exhaust Gas Enthalpy for Engines Utilizing Variable Valve Actuation." Proceedings of the ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control. ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, Volume 2. Arlington, Virginia, USA. October 31–November 2, 2011. pp. 627-634. ASME. https://doi.org/10.1115/DSCC2011-6001
Download citation file:
23
Views
Related Proceedings Papers
Related Articles
Computationally Efficient Whole-Engine Model of a Cummins 2007 Turbocharged Diesel Engine
J. Eng. Gas Turbines Power (February,2010)
Physics-Based Modeling and Control of Residual-Affected HCCI Engines
J. Dyn. Sys., Meas., Control (March,2009)
Control of Charge Dilution in Turbocharged Diesel Engines via Exhaust Valve Timing
J. Dyn. Sys., Meas., Control (September,2005)
Related Chapters
A Simple Carburetor
Case Studies in Fluid Mechanics with Sensitivities to Governing Variables
Outlook
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Alternative Systems
Turbo/Supercharger Compressors and Turbines for Aircraft Propulsion in WWII: Theory, History and Practice—Guidance from the Past for Modern Engineers and Students