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Abstract
Vehicle performance enhancement is one of the thorniest challenges that motorsport teams and car manufacturers face every day. In order to optimize the car dynamic behavior, it is fundamental to make tires work in temperature, pressure and setup conditions which can let them exhibit their maximum potential. For this reason, in recent years, great efforts have been made towards both indoor and outdoor novel tire characterization methodologies and increasingly complex mathematical models able to reproduce the tire physical behavior, accounting for all the interlinked physical phenomena involved.
In the presented work three different physical models, developed by the UniNa research group and its spin-off MegaRide, are coupled within a co-simulation framework, allowing to investigate the tire performance sensitivities and to optimize the vehicle behavior in the widest possible range of tire working conditions.
To this purpose, a vehicle model called T.R.I.C.K. (Tire/Road Interaction Characterization and Knowledge) has been developed to process data acquired from outdoor test session, adopting standard vehicle data to obtain interaction curves and time-by-time tire kinematics and dynamics. The output “virtual telemetry” is employed as an input for a tire thermodynamic model, called thermoRIDE, able to evaluate the local temperatures of all the different tire external and internal layers, not reachable by sensors. Finally, to take into account the effects due to energy, temperature, tread viscoelasticity and road roughness on tire wear and degradation, an additional physical model, weaRIDE, has been implemented and parameterized.
Analyzing the enriched dataset, it is possible to obtain fundamental information concerning tire behavior to define an optimal setup to increase and to govern the overall vehicle performance, both in design and pre-race phases.
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