Konferensartikel

Vectorized single-track model in Modelica for articulated vehicles with arbitrary number of units and axles

Peter Sundström
Modelon AB, Sweden

Bengt Jacobson
Chalmers University of Technology, Sweden

Leo Laine
Volvo Group Trucks Technology, Sweden

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp14096265

Ingår i: Proceedings of the 10th International Modelica Conference; March 10-12; 2014; Lund; Sweden

Linköping Electronic Conference Proceedings 148:27, s. 265-271

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Publicerad: 2014-03-10

ISBN: 978-91-7519-380-9

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

Abstract

A linear single-track model for articulated vehicles has been implemented. The model can represent an articulated vehicle with an arbitrary number of units each with an arbitrary number of axles. Lateral and yaw dynamics are in focus but longitudinal effects in couplings are also included. In the model; tire forces are linear with respect to slip angle. The couplings between units are represented as non-linear kinematic constraints which are valid for small and large articulation angles. Four use cases are presented: Inverse dynamics for feedforward control; frequency responses when varying parameters; steady-state evaluations and dynamic simulation. For these use cases; four parametrizations of the model are used corresponding to a tractor with a semitrailer a truck with a dolly and a semitrailer; an {A-double} (tractor+semitrailer+dolly+semitrailer) and an approximate version of an airport baggage carrier with five full trailers.

Nyckelord

Vehicle dynamics; vehicle models; articulated vehicles

Referenser

[1] M. Levén, A. Sjöblom, M. Lidberg, and B. Schofield, “Derivation of linear singletrack truck-dolly-semitrailer model with steerable axles,” Department of Applied Mechanics, Chalmers University of Technology, Tech. Rep. 2011:09, 2011.

[2] M. Gäfvert and O. Lindgärde, “A 9-dof tractorsemitrailer dynamic handling model for advanced chassis control studies,” Department of Automatic Control, Lund Institute of Technology, Tech. Rep. ISRN LUTFD2/TFRT–7597–SE, 2001.

[3] S. Kharrazi, “Steering based lateral performance control of long heavy vehicle combinations,” Ph.D. dissertation, Chalmers University of Technology, 2012.

[4] D. Vazquez-Vega, “Directional analysis of an atrain double with damped articulation,” Master’s thesis, Concordia Unversity, Montreal, 2000.

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