With the current trend towards engine downsizing, the use of turbochargers to obtain extra engine power has become common. A great difficulty in the use of turbochargers is in the modelling of the compressor map. In general this is done by inserting the compressor map directly into the engine ECU (Engine Control Unit) as a table. This method uses a great deal of memory space and often requires on-line interpolation and thus a large amount of CPU time. In this paper a more compact, accurate and rapid method of dealing with the compressor modelling problem is presented. This method is physically based and is applicable to all turbochargers with radial compressors for either Spark Ignition (SI) or diesel engines.
Compact and Accurate Turbocharger Modelling for Engine Control
Sae Technical Papers
SAE 2005 World Congress & Exhibition ; 2005
2005-04-11
Conference paper
English
Compact and accurate turbocharger modelling for engine control
Automotive engineering | 2005
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