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Title: Control-oriented premixed charge compression ignition CA50 model for a diesel engine utilizing variable valve actuation

Journal Article · · International Journal of Engine Research
 [1];  [1];  [1];  [2];  [2]
  1. Department of Mechanical Engineering, Purdue University, USA
  2. Cummins Technical Center, Columbus, USA
+ Show Author Affiliations

Premixed charge compression ignition (PCCI) is a promising combustion strategy for reducing in-cylinder NO x and particulate matter formation in diesel engines without incurring fuel penalty. However, one of the challenges in PCCI implementation is that the process does not allow direct control of the combustion timing. The crank angle of 50% heat release, known as the CA50, is generally a reasonable proxy for the quality of combustion in terms of maximum pressure rise rate, combustion noise, and fuel conversion efficiency. This paper outlines the development, and validation, of a real-time capable estimation strategy for diesel-fueled PCCI CA50 using production-viable measurements that do not include in-cylinder pressure. The CA50 estimation strategy considers both stages of diesel-fueled PCCI combustion—low-temperature heat release and high-temperature heat release, which contributes most to the cumulative heat released during combustion. The strategy is validated using a PCCI CA50 dataset generated with a wide range of positions of a variable geometry turbocharge, exhaust gas recirculation fractions, and intake valve closing timings. The model estimates CA50 within ±2 CAD for 65 out of 80 data points and exhibits an error standard deviation of 2.55 CAD.

Sponsoring Organization:
USDOE
Grant/Contract Number:
DEEE0003403
OSTI ID:
1437698
Journal Information:
International Journal of Engine Research, Journal Name: International Journal of Engine Research Vol. 18 Journal Issue: 8; ISSN 1468-0874
Publisher:
SAGE PublicationsCopyright Statement
Country of Publication:
United Kingdom
Language:
English

References (13)

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Combustion Limits and Efficiency in a Homogeneous Charge Compression Ignition Engine journal June 2006
Control-oriented premixed charge compression ignition combustion timing model for a diesel engine utilizing flexible intake valve modulation journal August 2012
Combustion Noise Analysis of Premixed Diesel Engine by Engine Tests and Simulations conference April 2014
Study on Ignition Timing Control for Diesel Engines Using In-Cylinder Pressure Sensor conference April 2006
Estimation of effective compression ratio for engines utilizing flexible intake valve actuation
  • Stricker, Karla; Kocher, Lyle; Koeberlein, Ed
  • Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, Vol. 226, Issue 8 https://doi.org/10.1177/0954407012438024
journal February 2012
Closed-Loop Control of an HCCI Engine conference March 2001
Correlation of Low Temperature Heat Release With Fuel Composition and HCCI Engine Combustion conference April 2005
Transient Control of HCCI Combustion by aid of Variable Valve Timing Through the use of a Engine State Corrected CA50-Controller Combined with an In-Cylinder State Estimator Estimating Lambda conference May 2005
Spontaneous Ignition Delay of a Fuel Droplet in High Pressure and High Temperature Gaseous Environments journal January 1976
A Predictive Real Time NOx Model for Conventional and Partially Premixed Diesel Combustion conference October 2006
Cylinder Pressure-Based Control of Pre-Mixed Diesel Combustion conference April 2007
Closed-loop combustion control of homogeneous charge compression ignition(HCCI) engine dynamics
  • Bengtsson, J.; Strandh, P.; Johansson, R.
  • International Journal of Adaptive Control and Signal Processing, Vol. 18, Issue 2 https://doi.org/10.1002/acs.788
journal March 2004

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