Computer aided development of engine control device software requires a model which is able to represent the real engine in a sufficient level of detail. The simulation results depend on the physical assumptions and formulas used (i.e. the model) as well as on the parameters of the model. Therefore the derivation of the model parameters is an important task. The enDYNA preprocessing tool supports the parame-terisation of an engine model by calculating the model parameters from standard measurement data and data sheet information, which is usually available during engine development. Manual parameter tuning or 'model calibration' is avoided by this approach. This paper aims at explaining the concept and key features of the enDYNA preprocessing tool. The first section describes the task of model parameterisation. The second section shows the concept of the preprocessing procedure from raw data acquisition to the application of the created parameters to the model. Various ways of calculating model parameters depending on the type of engine and the available data as well as a graphical tool for data filtering are introduced. The discussed issues will be illustrated by several examples. An outlook to future developments will conclude the paper.
The enDYNA preprocessing tool for model parameterisation
Simulation und Test in der Funktions- und Softwareentwicklung für die Automobilelektronik, 2005 ; 355-363
2006
9 Seiten, 6 Bilder, 3 Quellen
Conference paper
English
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