Title: Modular modelling and simulation tool for evaluation of powertrain performance

Authors: A. Eriksson, B. Jacobson

Addresses: Machine and Vehicle Design, Chalmers University of Technology, S-412 96 Goteborg, Sweden. ' Machine and Vehicle Design, Chalmers University of Technology, S-412 96 Goteborg, Sweden

Abstract: A modelling and simulation tool for evaluation and comparison of powertrain concepts is described. It is built upon an existing modelling and simulation software package. The tool uses new and powerful modelling techniques for dynamic systems. Object and equation orientation and hierarchically structured libraries are used to provide a powerful yet flexible instrument. The powertrain is studied as part of a total system consisting of vehicle, driver and road. Transient city traffic is focused on. Primary results from simulations are energy consumption and emissions. Simple modelling examples demonstrate the advantages of equation-oriented modelling. New kinds of road and driver models are also included. They make prediction of the outcome of realistically described transportation tasks possible and are useful for evaluating the influence of driver behaviour on energy consumption and emissions. Examples of model implementation and library structure are presented. The ability of the tool is illustrated with simulations which are compared with tests.

Keywords: automotive simulation; driveline; drivetrain; dynamic systems; vehicle emissions; fuel consumption; powertrain modelling; powertrain simulation; powertrain evaluation; energy consumption; equation-oriented modelling; object-oriented modelling; driver behaviour; driver models; road models; transient city traffic.

DOI: 10.1504/IJVD.1999.005575

International Journal of Vehicle Design, 1999 Vol.21 No.2/3, pp.175 - 189

Published online: 20 Oct 2004 *

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