Sliding mode observers to heavy vehicle vertical forces estimation

摘要

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.