Method and device for detecting a tyre flat running...

B - Operations – Transporting – 60 – C

Patent

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B60C 23/06 (2006.01) B60B 21/02 (2006.01) B60C 17/04 (2006.01) B60C 19/00 (2006.01) B60C 23/04 (2006.01)

Patent

CA 2337259

The invention concerns a method for detecting a vehicle tyre flat running condition, said tyre being mounted on a wheel, consisting in: sensing a value f(.alpha.,t) which varies with the wheel angular displacement in time; elaborating measurement signals which vary with the wheel angular speed d.alpha.(t)/dt; computing a characteristic measurable quantity of the measurement signals dispersion; triggering an alarm when the characteristic measurable quantity satisfies a predetermined relationship.

Procédé de détection d'une condition de roulage à plat d'un pneumatique d'un véhicule, ledit pneumatique étant monté sur une roue, tel que: on capte une grandeur f(.alpha.,t) qui varie avec le déplacement angulaire de la roue dans le temps; on élabore des signaux de mesure qui varient avec la vitesse angulaire de la roue d.alpha.(t)/dt; on calcule une grandeur caractéristique de la dispersion des signaux de mesure; on déclenche une alarme lorsque ladite grandeur caractéristique satisfait une relation donnée.

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