Measuring and testing – Tire – tread or roadway
Reexamination Certificate
2005-07-05
2005-07-05
Cygan, Michael (Department: 2855)
Measuring and testing
Tire, tread or roadway
Reexamination Certificate
active
06912896
ABSTRACT:
A method for controlling the functioning of a tire includes the steps of determining estimations or measurements of the slip Giand the coefficient of friction μiprevailing at such slip for at least one pair “i” of values (Gi, μi); determining the corresponding values of the slope αiof the straight line passing through the origin and through each pair (Gi, μi); calculating a coefficient B by direct calculation or by a regression from a sufficient number of pairs of (αi, Gi) so as to estimate the value of slope α0at the origin; and using α0in an indicator of the longitudinal stiffness of the tread pattern.
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Grosch, K. A. Kautschuk und Gummi Kunststoffe Jun. 1996 v49 n 6 p432-441.
Yamazaki Shun'ichi The Determination of Tire Parameter for Real Time Estimation of Tire and Road Friction 1997 Jpn. Automob. Res. Inst. Inc p165-168.
Sakai Tomotsugu, Investigation of Lambourne Wear Test Conditions to Evaluate Tire Wear Life, Toyota Motor Corp., proceedings of the International Sessions JSME Spring annual meetig, 1996 vol. 73 p. 33-34.
Fangeat Nicolas
Levy Georges
Allen Andre
Cygan Michael
Michelin & Recherche et Technique S.A.
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