This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Optimizing Engine Concepts by Using a Simple Model for Knock Prediction
Technical Paper
2003-01-3123
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The objective of this paper is to present a simulation model for controlling combustion phasing in order to avoid knock in turbocharged SI engines. An empirically based knock model was integrated in a one-dimensional simulation tool. The empirical knock model was optimized and validated against engine tests for a variety of speeds and λ. This model can be used to optimize control strategies as well as design of new engine concepts.
The model is able to predict knock onset with an accuracy of a few crank angle degrees. The phasing of the combustion provides information about optimal engine operating conditions.
Recommended Content
Authors
Topic
Citation
Elmqvist, C., Lindström, F., Ångström, H., Grandin, B. et al., "Optimizing Engine Concepts by Using a Simple Model for Knock Prediction," SAE Technical Paper 2003-01-3123, 2003, https://doi.org/10.4271/2003-01-3123.Also In
Spark Ignition and Compression Ignition Engines Modeling 2003
Number: SP-1803; Published: 2003-10-31
Number: SP-1803; Published: 2003-10-31
References
- By, A. Kempinski, B. Rife, J.M. “Knock in Spark Ignition Engines” SAE 810147 1981
- König, G. Sheppard, C. G. W. “End Gas Autoignition and Knock in a Spark Ignition Engine” SAE 902135 1990
- Heywood, J. B. “Internal Combustion Engine Fundamentals” McGraw - Hill, inc 1988
- Burgdorf, Klaas “Engine Knock: Characteristics and Mechanisms” Chalmers University of Technology 1999
- König, G. Maly, R. R. Bradley, D. Lau, A. K. C. Sheppard, C. G. W. “Role of Exothermic Centres on Knock Initiation and Knock Damage” SAE 902136 1990
- Pan, J. Sheppard, C. G. W. “A Theoretical and Experimental Study of the Modes of End Gas Autoignition Leading to Knock in S.I. Engines” SAE 942060 1994
- Fischer, M. et.al. “Knock Detection in Spark-Ignition Engines: New Tools and Methods in Production-Vehicle Development” MTZ 3 2003
- Brunt, F. J. et. al. “Gasoline Engine Knock Analysis using Cylinder Pressure Data” SAE 980896 1998
- Millo, F. Ferraro, C. V. Knock in S.I. Engines: A Comparison between Different Techniques for Detection and Control SAE 982477
- Young, H. D. Freedman, R. A. University Physics 9th Addison-Wesley 1995
- Worret, R. et. al. “Application of Different Cylinder Pressure Based Knock Detection Methods in Spark Ignition Engines” SAE 2002-01-1668
- Chun, K. M. Heywood, J. B. “Characterization of Knock in a Spark-Ignition Engine” SAE 890156 1989
- Kalghatgi, G. T. Snowdon, P. McDonald, C. R. “Studies of Knock in a Spark Ignition Engine with CARS Temperature Measurements and Using Different Fuels” SAE 950690 1995
- Livengood, J. C. Wu, P. C. “Correlation of Autoignition Phenomenon in Internal Combustion Engines and Rapid Compression Machines” Fifth Symposium (International) on Combustion 347 356 1955
- Cowart, J. S. Haghgooie, C. E. et. al. “The Intensity of Knock in an Internal Combustion Engine: An Experimental and Modeling Study” SAE 922327 1992
- Douaud, A. M. Eyzat, P. “Four-Octane-Number Method for Predicting the Anti-Knock Behaviour of Fuels and Engines” SAE 780080 1978