A New Datadriven Approach to Modeling the Combustion of a Diesel Engine in HCCI Mode
Date Published: 2009-04-20
Paper Number:2009-01-0128
DOI: 10.4271/2009-01-0128
Citation:
Fuchsbauer, A. and Fuchs, C., "A New Datadriven Approach to Modeling the Combustion of a Diesel Engine in HCCI Mode," SAE Technical Paper 2009-01-0128, 2009, doi:10.4271/2009-01-0128.
Author(s):
Alexandra Fuchsbauer - Robert Bosch GmbH
Christian Fuchs - Robert Bosch GmbH
Abstract:
The contribution presents a new data driven modeling approach for diesel HCCI combustion. Input parameters of the combustion model are external actuating variables as for example the start of injection. The model incorporates experimental data of the engine in HCCI mode, in the standard diesel mode and in the transition region between both modes. New disclosed dependencies between characteristic values of the cylinder pressure and the fuel burn rate are used to linearize the combustion model for a given operating point. In this paper the validation of the combustion model is discussed based on dynamic measuring data of the urban part of the NEDC. Finally, the combustion model is integrated in a zero-dimensional diesel engine model.
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