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A Model for a Fast Prediction of the In-Cylinder Residual Gas Mass
Technical Paper
2004-01-3053
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The presented results are part of a research project to create a universal residual gas fraction model. It is supported by the „Forschungsvereinigung Verbrennungs-kraftmaschinen e.V. (FVV)”.
In the research project an universal formula has been developed which allows the determination of the residual gas fraction in allkind of IC engines. The formula is valid for naturally aspirated engine, turbo and super charged, variable valve timing and fully variable valve trains, as well. The formula (constant approach) developed during the project is based on variables like time averaged intake and exhaust pressure, exhaust temperature and geometric engine data which were measured on the test bench. As a result, online and real time calculation is possible already while the engine is running. This implies that the formula can be used within the engine control unit for control purposes. The comparison of the results from the thermodynamic gas exchange analysis and the 1-dimensional simulation (GT-Power) shows a good correlation with the experimental results. The outcome of the newly developed calculation method (constant statement) obtain simple models of Heywood and Müller-Bertling[1, 2, 6, 9]. The improved values can be used for fast in advance calculations of the internal residual gas mass.
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Authors
Citation
Koehler, U. and Bargende, M., "A Model for a Fast Prediction of the In-Cylinder Residual Gas Mass," SAE Technical Paper 2004-01-3053, 2004, https://doi.org/10.4271/2004-01-3053.Also In
References
- Heywood, J. B. Cheng, W. K. Fox, J. W. SAE-Paper 931025 A Model for Predicting Residual Gas Fraction in Spark-Ignition Engines Massachusetts Institute of Technology
- Müller, H. Bertling, H.
- Schwarz F. Spicher U. SAE-Paper 2003-01-3148 Determination of Residual Gas Fraction in IC Engines Institut für Kolbenmaschinen, University of Karlsruhe
- Merker, G.P. Schwarz:, C. Teubner Verlag Stuttgart 2001
- Bargende, M. 2000
- Reitz, R. D. Xin, J. Senecal, P.K. SAE-Paper 962052 Predictions of Residual Gas Fraction in IC Engines Society of Automotive Engineers, Inc 1996
- Pischinger, R. Kraßnig, G. Taucar, G. Sams, Th. Springer-Verlag Wien, New York 1989
- Bargende, M. 1994
- Bargende Spicher Koehler Schwarz 2002