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Modeling and Control of Supercharged SI and CI Engines

Modeling and Control of Turbocharged SI and DI Engines Lars Eriksson Vehicular Systems, Dept. of Electrical Engineering Linköping University, SE-581 83 Linköping larer@isy.liu.se ABSTRACT A component based modeling methodology for turbocharged engines is described and applied. Several component models are compiled and reviewed. In addition new models are developed for the compressor efficiency, compressor flow, and turbine flow. Two application examples are finally given where the modeling methodology and the component models have been used. The applications are: Observer design and air/fuel ratio control of SI engines. Control design of DI engines with VGT and EGR. CONFERENCE INFORMATION: Les Rencontres Scientifiques de l'IFP : "New Trends in Engine Control, Simulation and Modelling" 2-4 October 2006, IFP, Rueil-Malmaison, France

Lars Eriksson


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