Rapid virtual prototyping and dynamics analysis of a common rail injection system for gasoline engines
by Matteo Corno, Sergio Matteo Savaresi, Riccardo Scattolini, Emilio Comignaghi, Marco Sofia, Antonio Palma, Eduardo Sepe
International Journal of Vehicle Systems Modelling and Testing (IJVSMT), Vol. 4, No. 1/2, 2009

Abstract: The topic of this article is the modelling, parameter estimation and analysis of a common rail direct injection system of a gasoline engine. First the system is described and the functional role of each element is highlighted. An analytical first-principles simulator of the system is developed, using a finite-difference approach. Model parameters are identified and the simulator is validated using real data. Using the validated simulator, an analysis of the system dynamics is developed. This analysis provides a deep insight in the trade-offs of the choice of some components of the injection system. It is shown how this approach can be very useful to make a 'virtual' (simulator-based) definition of the system. From the methodological point of view, the most interesting feature of the analysis presented in this article is the fact that mechanics, fluid-dynamics and control algorithms are analysed as a whole, in a genuine and modern 'co-design' approach.

Online publication date: Sun, 08-Nov-2009

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