This content is not included in your SAE MOBILUS subscription, or you are not logged in.
An Analytic Model for Cylinder Pressure in a Four Stroke SI Engine
Technical Paper
2002-01-0371
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
An analytic model for cylinder pressures in spark ignited engines is developed and validated. The main result is a model expressed in closed form that describe the in-cylinder pressure development of an SI engine. The method is based on a parameterization of the ideal Otto cycle and takes variations in spark advance and air-to-fuel ratio into account. The model consists of a set of tuning parameters that all have a physical meaning. Experimental validation on two engines show that it is possible to describe the in-cylinder pressure of a spark ignited combustion engine operating close to stoichiometric conditions, as a function of crank angle, manifold pressure, manifold temperature and spark timing.
Recommended Content
| Technical Paper | SI-Engine Cylinder Pressure Estimation using Torque Sensors |
| Technical Paper | A Model for Predicting Residual Gas Fraction in Spark-Ignition Engines |
| Technical Paper | Peak Pressure Position Estimation from Structure-Borne Sound |
Authors
Topic
Citation
Eriksson, L. and Andersson, I., "An Analytic Model for Cylinder Pressure in a Four Stroke SI Engine," SAE Technical Paper 2002-01-0371, 2002, https://doi.org/10.4271/2002-01-0371.Also In
Modeling of SI Engines and Multi-Dimensional Engine Modeling
Number: SP-1702 ; Published: 2002-03-04
Number: SP-1702 ; Published: 2002-03-04
References
- Allmendinger K., Guzzella, L. and Seiler A.. A method to reduce calculation time for an internal combustion engine model. SAE Technical Paper no. 2001-mm, 2001.
- Matekunas Frederic A.. Engine combustion control with ignition timing by pressure ratio management. US Pat., A, 4622939, Nov. 18 1986.
- Matekunas Frederic A.. Spark ignition engines - combustion characteristics, thermodynamics, and the cylinder pressure card. Central States Section, The Combustion Institute, March 19-20 1984. Minneapolis, Mn.
- Matekunas Frederic A.. Modes and measures of cyclic combustion variability. SAE Technical Paper 830337, 1983.
- Hires S.D., Tabaczunski R.J., and Novak J.M.. The prediction fo ignition delay and combustion intervals for a homogeneous charge, spark ignition engine. SAE Technical Paper 780232, 1978.
- Daniels Chao F.. The comparison of mass fraction burned obtained from the cylinder pressure signal and spark plug ion signal. SAE Technical Paper 980140, 1998.
- Auzins J., Johansson H., and Nytomt J.. Ion-gap sense in missfire detection, knock and engine control. SAE SP-1082, (SAE paper No. 950004):21-28, 1995.
- Heywood J. B.. Internal Combustion Engine Fundamentals. McGraw-Hill series in mechanical engineering. McGraw-Hill, 1988.
- Mladek Michael and Guzzella Lino. A model for the estimation of residual gas fraction using cylinder pressure measurements. SAE Technical Paper 2000-01-0958, 2000.
- Eriksson Lars. Requirements for and a systematic method for identifying heat-release model parameters. Modeling of SI and Diesel Engines, SP-1330(SAE Technical Paper no.980626):19-30, 1998.
- Vibe I.I.. Brennverlauf und Kreisprocess von Verbennungsmotoren. VEB Verlag Technik Berlin, 1970. German translation of the russian original.
- Csallner Peter. Eine Methode zur Vorasberechnun der Änderun des Brennferlaufes von Ottomotoren bei geänderten Betriebsbedingungen. PhD thesis, Technischen Universität München, 1980.
- Eriksson Lars. Spark Advance Modeling and Control. PhD thesis, Linköping University, May 1999.ISBN 91-7219-479-0, ISSN 0345-7524.
- Krieger R.B. and Borman G.L.. The computation of apparent heat release for internal combustion engines. ASME, 1967.