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A Generic, Transient Model of a Turbocharged, Multi-Cylinder, Common-Rail Diesel Engine

[+] Author Affiliations
Radu Ceausu, Dinu Taraza, Naeim A. Henein

Wayne State University, Detroit, MI

Walter Bryzik

U.S. Army TARDEC, Warren, MI

Paper No. ICES2005-1021, pp. 375-386; 12 pages
doi:10.1115/ICES2005-1021
From:
  • ASME 2005 Internal Combustion Engine Division Spring Technical Conference
  • ASME 2005 Internal Combustion Engine Division Spring Technical Conference
  • Chicago, Illinois, USA, April 5–7, 2005
  • Conference Sponsors: Internal Combustion Engine Division
  • ISBN: 0-7918-4184-7 | eISBN: 0-7918-3753-X
  • Copyright © 2005 by ASME

abstract

The paper presents a generic model of a turbocharged, common rail diesel engine developed on a SIMULINK platform. The model is developed for the main task of predicting transient behavior of the turbocharged engine, especially acceleration under load. In order to reduce computer time, the model is zero-dimensional as far as combustion is concerned, but split injection is considered to simulate the main characteristic of modern common rail diesel engines. A simplified generic model of the turbocharger is developed such as to determine the effects of different design parameters on the acceleration of the engine. A detailed dynamic model of the engine is considered to allow estimating the torsional behavior of the crankshaft and evaluate the impact of torsional vibrations. The model is validated on a four-cylinder, 2.5 liter common-rail diesel engine and is further used to identify the fueling strategy and the design parameters that could be improved in order to obtain the best possible engine acceleration under different load conditions.

Copyright © 2005 by ASME

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