From Temperature to Wear: A Quantitative Analysis of Tire Influence on Vehicle Cornering Using Handling Key Performance Indicators Politecnico di Bari

Format:

Book

Conference/Event

Author/Creator:

Romagnuolo, Fabio, author.

Contributor:

Aratri, Roberto

Bottiglione, Francesco

De Bellis, Sergio

De Pinto, Stefano

Farroni, Flavio

Mantriota, Giacomo

Sakhnevych, Aleksandr

Conference Name:

Automotive Technical Papers (2025-01-01 : Warrendale, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2025

Summary:

Vehicle behavior is strongly influenced by tire performance, as tires serve as the primary interface between the vehicle and the road surface. Since identical vehicles equipped with different tire setsor even the same tires operating under varying thermal and wear conditionscan exhibit significantly different handling characteristics, this study aims to quantify their impact on both steady-state and transient cornering responses through a dedicated evaluation methodology.To demonstrate the generalization of the proposed approach, three completely different validated vehicle digital twinsa passenger car, a sports car, and a formula carare analyzed in a virtual environment, employing Vi-Car Real Time for vehicle and scenario representations, and RIDEsuite for tire modeling, considering thermal and wear effects. The simulations were designed using a structured design of experiments approach, resulting in 15 predefined combinations of tire temperature and wear states.Results show that operating outside the tire's optimal thermal and wear conditions significantly affects vehicle handling balance, responsiveness, and driver perception of agility. These effects scale with tire performance level: while standard passenger car tires exhibit limited sensitivity, slick formula tires show substantial variations in grip and cornering stiffness, reaching deviations of approximately 10% and 35% from their nominal values, respectively.Vehicle steady-state analyses indicate that front axle wear increases understeer, while rear axle wear reduces overall stabilityresulting, for example, in a 25% increase in peak sideslip angle in the sports car configuration. Transient analyses further confirm that temperature has a more pronounced effect than wear, particularly on yaw rate and lateral acceleration response times, with variations reaching up to ±10% relative to optimal thermal conditions.This work highlights the need to include tire condition effects in handling target definition and validation processes, recommending careful monitoring of tire states during standardized ISO maneuvers. Fixed metrics should be replaced by performance ranges that reflect actual tire operating states, whether for custom-developed or off-the-shelf tires

Notes:

Vendor supplied data

Publisher Number:

2025-01-5060

Access Restriction:

Restricted for use by site license