Title: Sliding mode observers to heavy vehicle vertical forces estimation

Authors: H. Imine, V. Dolcemascolo

Addresses: Laboratoide Central des Ponts et Chaussees, 58, bld Lefebvre, 75732 Paris Cedex 15, France. ' Laboratoide Central des Ponts et Chaussees, 58, bld Lefebvre, 75732 Paris Cedex 15, France

Abstract: The impact forces are the vertical component of the road/tyre interface. These forces are important to calculate road and bridge damage or to assess the Load Transfer Ratio (LTR) used to prevent rollover situation of heavy vehicles. A good evaluation of these forces requires an accurate description of the road profile, which is an input to the heavy vehicle model. In this paper, several road profiles are measured and applied as an input to the heavy dynamic model. The corresponding vertical forces are evaluated. The estimation is computed using sliding mode observers. Simulation results are presented to evaluate the robustness of the approach.

Keywords: heavy vehicles; vertical forces; rollover; warning systems; sliding mode observers; impact forces; road-tyre interface; load transfer ratio; LTR; road profiles; dynamic modelling; simulation.

DOI: 10.1504/IJHVS.2008.017983

International Journal of Heavy Vehicle Systems, 2008 Vol.15 No.1, pp.53 - 64

Published online: 25 Apr 2008 *

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