Compagnie Generale Des Etablissements Michelin

Centre National De La Recherche Scientifique

Université Paul Sabatier (toulouse Iii)

Institut National Polytechnique De Toulouse

Florian Bremond

Melaine Guillou

Remi Cote

Thierry Bosch

Andre-Clement Gaucerand

André-Clément Gaucerand

Rémi Cote

Jean-michel Loubes

Bastien Grimaldi

Francis Bony

A method for estimating a water height on a roadway where a tire of a vehicle is running, the mounted assembly being placed in a wheel arch of the vehicle, comprises the following steps: fixing a sensor onto the vehicle; obtaining a frequency signal from the sensor corresponding to the running of the vehicle at speed V on the roadway covered with a water height heau; isolating a part of the frequency signal, bounded by two strictly increasing frequencies, which is sensitive to the height heau; determining an energy vector linked to the part of the frequency signal; and obtaining the water height on the roadway using a function taking account of the energy vector and the speed V of the vehicle. The sensor is a microphone, and the part of the frequency signal extends at least partly beyond 4 kHz.

Method for estimating the water level on a roadway when a tire is running

Ground surface comprising a substrate () having a Young's modulus of between 100 and 1000 GPa, and in which the ground surface has, on a working surface (), a Vickers hardness of between 1300 and 10 000 kgf/mm, and/or a surface coating forming the working surface, in which the surface coating contains amorphous carbon and/or titanium nitride and/or chromium nitride and/or tungsten carbide.

Flooring and device and methods associated with same

Growing community of inventors

Clermont-Ferrand, France

Florian Bremond