Conference Proceedings

Optimization of all SI engine combustion control and related events for efficiency

HC Watson, A Ratnawera, S Halgamuge

SAE Technical Papers | Published : 2006

Abstract

There are two parts to achieving the optimization reported here. The development of an engine simulation model and an optimization algorithm. The engine performance is evaluated using a quasi-dimensional engine combustion model with sub models to incorporate friction, heat losses and abnormal combustion, that is knocking. After extensive search and development a new Particle Swarm Optimizer (PSO), has been developed. Optimization includes, for the first time, the search of discontinuous design variables. The input variables considered for this investigation are manifold air pressure, air-fuel ratio, spark timing, compression ratio, valve timing events including valve open duration, maximum v..

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University of Melbourne Researchers

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