Michelin Recherche Et Technique S.a.

Societe Detechnologie Michelin

Pierrick Travert

Jose Merino Lopez

Jose Merino-Lopez

George Phillips O'Brien

Jay Clifford Sinnett

John David Adamson

David Bertrand

Disclosed is a methodology for deriving data related to various selected tire () conditions. One or more sensors are analyzed in a manner similar to that of analyzing an electro-cardiogram taken from a human patient in order to determine selected operational characteristics of the monitored tires (). Analysis of the signal waveforms may involve analysis of a single waveform and/or comparison of paired waveforms originating for sensors associated with a single tire or paired tires ().

Flex signature for tire condition

A tire includes, among the conventional tread pattern elements, at least one measuring element having a central zone and an encircling zone. In normal operation, the central zoneof a measuring element slides over the ground while, conversely, the tread as a whole does not slide over the ground. Measurements are carried out of the maximum adherence potential with the ground, at any moment, due to the central zone of a measuring element. In an alternative embodiment, the measuring element may comprise a circumferentially extending rib(s) or tread block(s) whose ground contact surface(s) is spaced at a lesser radial distance from the wheel axle than the spacing of the ground contact surfaces of the conventional tread blocks.

Measurement of adherence between a vehicle wheel and the roadway

Growing community of inventors

Beaumont, France

Pierrick Travert