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Automated Model Fit Method for Diesel Engine Control Development

Journal Article
ISSN: 1946-3936, e-ISSN: 1946-3944
Published April 01, 2014 by SAE International in United States
Automated Model Fit Method for Diesel Engine Control Development
Citation: Seykens, X., Willems, F., Kuijpers, B., and Rietjens, C., "Automated Model Fit Method for Diesel Engine Control Development," SAE Int. J. Engines 7(1):297-312, 2014,
Language: English


This paper presents an automated fit for a control-oriented physics-based diesel engine combustion model. This method is based on the combination of a dedicated measurement procedure and structured approach to fit the required combustion model parameters. Only a data set is required that is considered to be standard for engine testing. The potential of the automated fit tool is demonstrated for two different heavy-duty diesel engines. This demonstrates that the combustion model and model fit methodology is not engine specific. Comparison of model and experimental results shows accurate prediction of in-cylinder peak pressure, IMEP, CA10, and CA50 over a wide operating range. This makes the model suitable for closed-loop combustion control development. However, NO emission prediction has to be improved.