Method of detecting an occurrence of hydroplaning of a tire...

Details Method of detecting an occurrence of hydroplaning of a tire... Method of detecting an occurrence of hydroplaning of a tire...

2008-04-03

2010-11-16

Caputo, Lisa M (Department: 2855)

Measuring and testing

Tire, tread or roadway

Reexamination Certificate

active

07832262

ABSTRACT:
In a method of detecting an occurrence of hydroplaning of a tire of a vehicle travelling on wet ground, a tread of the tire of the vehicle is equipped with one or more sensors each capable of measuring a compression experienced locally by the tread when the tire is rolling on the ground and of producing a signal corresponding to these measurements. According to the method, measurements are obtained of a compression when the tire is rolling on the ground; a signal corresponding to these measurements is produced; a portion of the signal relating to a passing of one or more sensors into an apparent area of contact between the tire and the ground is extracted; an instantaneous value (ΔE, Rz), corresponding to a presence of an indirect contact region of the apparent area of contact between the tread and the ground, is determined from the extracted portion of the signal; and an alarm is triggered when the instantaneous value satisfies a given relationship.

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