Conference article

Investigating the Multibody Dynamics of the Complete Powertrain System

Alessandro Picarelli
Claytex Services Ltd., UK

Mike Dempsey
Claytex Services Ltd., UK

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Published in: Proceedings of the 7th International Modelica Conference; Como; Italy; 20-22 September 2009

Linköping Electronic Conference Proceedings 43:47, s. 423-433

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Published: 2009-12-29

ISBN: 978-91-7393-513-5

ISSN: 1650-3686 (print), 1650-3740 (online)


The specifications and integration of two new Modelica libraries is presented: The Powertrain Dynamics (PTDynamics) and the Engines libraries. The libraries enable the simulation and modelling of powertrain systems including their fluid dynamic; pollutant emission; mechanical and thermal performances in one simulation environment (Dymola); utilising the object orientated modelling language Modelica.

Two variants of the Engines library are presented: a Mean Value variant (MVEL) and a Crank Angle Resolved variant (CAREL).

Both the PTDynamics and Engines libraries make use of a new approach to modelling the mechanics that captures the full MultiBody effects of the Powertrain system without the computational cost of using the standard Modelica MultiBody library.


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1. Franke; R. et al. “Standardization of thermofluid modeling in Modelica_Fluid 1.0”. Modelica Conference 2009. doi: 10.3384/ecp09430077.

2. Hendricks et al. “Modelling of the Intake Manifold Filling Dynamics” SAE 960037 1996.

3. John J. Batteh Charles E. Newman. “Detailed Simulation of Turbocharged Engines with Modelica” Modelica Conference; 2008.

4. Finol C A and Robinson K. “Thermal modeling of modern engines: a review of empirical correlations to estimate the in-cylinder heat transfer coefficient”. Department of Mechanical Engineering; University of Bath; UK.

5. Yang et al. “A Valve Train Friction and Lubrication Analysis Model and Its Application in a Cam/Tappet Wear Study” SAE 962030 1996.

6. R. C. Coy. “Practical applications of lubrication models in engines” Tribology International vol. 31 No. 10.

7. Heywood J.B. “Internal Combustion Engine Fundamentals” McGraw Hill.

8. Stone; R. “Introduction to Internal Combustion Engines” SAE International; 1999

9. Masoudi. M. “Pressure Drop of Segmented Diesel Particulate Filters”. SAE 2005-01-0971 2005

10. Kladopoulou et al. “A study Describing the Performance of Diesel Particulate Filters During Loading and Regeneration – A lumped Parameter Model for Control Applications”. SAE 2003-01-0842 2003

11. Silva et al. “Evaluation of SI engine exhaust gas emission upstream and downstream of the catalytic converter”. Mechanical Engineering Department; Technical University of Lisbon; Portugal. 2006

12. Dempsey; M. et al. “Coordinated automotive libraries for vehicle system modeling”. Modelica Conference 2006.


14. Kandylas I. P. and Stamatelos A.M. “Engine exhaust system design based on heat transfer computation” Energy Conversion and Management 40 (1999).

15. Batteh J. J. and Kenny P. J. “Modelling the Dynamics of Vehicle Fuel Systems”. Modelica Conference 2006.

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