Paper Number 3.6

Parameter Estimation and Evaluation of
LuGre Tire Friction Model Using Data
Collected at Multiple Pavement Surfaces

Madhura P.N. Rajapakshe[1]

Manjriker Gunaratne

Department of Civil and Environmental Engineering

University of South Florida

4202 East Fowler Avenue ENC 3300

Tampa Florida 33620

Email: mrajapak@mail.usf.edu

Voice: (813) 732-1732

Fax: (813) 974-2957

Accurate analytical modeling of tire/pavement friction phenomena is of utmost importance in many applications, such as vehicle braking control and frictional evaluation of pavements. LuGre model is such an analytical model which can be used after estimating its parameters using measured data. In this investigation, LuGre model parameters were estimated using field data collected by a standard pavement friction measuring device (Locked Wheel Skid Trailer- ASTM E 274) at a group of pavements having different surface friction properties. Adequacy of the model to predict measured friction data from the device was statistically evaluated and the accuracy of estimated model parameters was determined. The results show the potential of this model to facilitate tire/pavement friction evaluation using dynamic friction measuring equipment.

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[1] Presenting author