Michelin Recherche Et Technique S.a.

Societe Detechnologie Michelin

Valéry Poulbot

Lionel Fagot-Revurat

Michel Robert

Mickaël Lion

Patrick Gougnaud

Heathcliff Demaie

A method for the continuous measurement of the wear of a tire comprises the steps of measuring a capacitance or an electrical resistance within a tread pattern element of the tire, and deducing the height of the element with the aid of an equation relating the capacitance or resistance to the height, and devices for implementing the method.

Method and device for the continuous measurement of the wear of a tire

A method and a device for evaluating the deformations or forces to which a structure having an elastomeric body () is subjected. The device includes a dipole (), the dielectric () of which is formed by the elastomeric body, and an electronic analyzing circuit sensitive to a variation of a capacitive characteristic of the dipole caused by the deformations of the elastomeric body. In particular, but not exclusively, the invention relates to a device for evaluating the forces to which a pneumatic tire is subjected when rolling, as it passes through the contact area. The invention applies similarly in other structures having an elastomeric body, such as, for example, the elastomeric joints intended for the chassis system of vehicles.

Method and device for evaluating deformations and forces

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Les Martres d'Artieres, France

Valéry Poulbot