Premixed charge compression ignition (PCCI), an advanced mode combustion strategy, promises to simultaneously deliver the fuel efficiency of diesel combustion and the ultralow emissions that usually require advanced exhaust aftertreatment. A flexible, computationally efficient, and whole engine simulation model for a 2007 6.7 l diesel engine with exhaust gas recirculation (EGR), variable geometry turbocharging (VGT), and common rail fuel injection was validated after extensive experimentation. This model was used to develop strategies for highly fuel-efficient and ultralow emission PCCI. The primary aim of this modeling investigation is to determine the PCCI control authority present on a modern diesel engine outfitted with both conventional actuators (multipulse fuel injectors, EGR valve, and VGT) and flexible intake valve closure modulation, which dictates the effective compression ratio. The results indicate that early fuel injection coupled with ECR reduction and modest amounts of EGR yield a well-timed PCCI exhibiting reductions in with no fuel consumption penalty over a significant portion of the engine operating range.
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e-mail: gshaver@purdue.edu
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September 2010
Research Papers
PCCI Control Authority of a Modern Diesel Engine Outfitted With Flexible Intake Valve Actuation
Anup M. Kulkarni,
Anup M. Kulkarni
Energy Center, Herrick Laboratories, School of Mechanical Engineering,
Purdue University
, West Lafayette, IN
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Karla C. Stricker,
Karla C. Stricker
Energy Center, Herrick Laboratories, School of Mechanical Engineering,
Purdue University
, West Lafayette, IN
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Angeline Blum,
Angeline Blum
Energy Center, Herrick Laboratories, School of Mechanical Engineering,
Purdue University
, West Lafayette, IN
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Gregory M. Shaver
Gregory M. Shaver
Energy Center, Herrick Laboratories, School of Mechanical Engineering,
e-mail: gshaver@purdue.edu
Purdue University
, West Lafayette, IN
Search for other works by this author on:
Anup M. Kulkarni
Energy Center, Herrick Laboratories, School of Mechanical Engineering,
Purdue University
, West Lafayette, IN
Karla C. Stricker
Energy Center, Herrick Laboratories, School of Mechanical Engineering,
Purdue University
, West Lafayette, IN
Angeline Blum
Energy Center, Herrick Laboratories, School of Mechanical Engineering,
Purdue University
, West Lafayette, IN
Gregory M. Shaver
Energy Center, Herrick Laboratories, School of Mechanical Engineering,
Purdue University
, West Lafayette, INe-mail: gshaver@purdue.edu
J. Dyn. Sys., Meas., Control. Sep 2010, 132(5): 051009 (15 pages)
Published Online: August 23, 2010
Article history
Received:
September 8, 2008
Revised:
April 15, 2010
Online:
August 23, 2010
Published:
August 23, 2010
Citation
Kulkarni, A. M., Stricker, K. C., Blum, A., and Shaver, G. M. (August 23, 2010). "PCCI Control Authority of a Modern Diesel Engine Outfitted With Flexible Intake Valve Actuation." ASME. J. Dyn. Sys., Meas., Control. September 2010; 132(5): 051009. https://doi.org/10.1115/1.4002106
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