Car Stability Detection from Tyre Stresses

Abstract In the framework of on-board active systems to control vehicle dynamics, a new approach is presented here. The study and developed application are dedicated to Electronic Stability Program field. This paper gives a feasibility study of the detection and quantification of the trajectory stability via stresses generated in the wheel-road interface. The approach chosen is based on fault diagnosis tools and fuzzy logic due to strong non-linear and coupling aspects. Finally a "detector" of stability (potential dangerous situation), essentially based on the measurement of lateral stresses, is given and tested on real measurements.