Tyre effective radius and vehicle velocity estimation: a variable structure observer solution
Résumé
This paper proposes a new variable structure observer for wheels effective radius and velocity of automotive vehicles. This observer is based on high order sliding approach (which allows robustness and finite time convergence). Its main originality in the automotive context consists in providing an estimation of both variables, wheels radius and vehicle velocity from only the wheel angular velocity derived from ABS (Anti-Blocking System) encoder position.