The invention relates to a tyre (1) for a passenger vehicle, the performance of which in terms of rolling resistance has been improved without compromising transverse drift rigidity. The bead (50) is softened by the use of low-hysteresis materials. The transverse drift rigidity is compensated by virtue of the use of a rigid and low-hysteresis sidewall layer (30). The layers of compounds in the bottom region having a viscoelastic loss Tan(δ)max of less than or equal to 0.10 represent a volume of between 30% and 90% of the total volume of the bottom region, and the shear stiffness elastic modulus G'(M3) of the sidewall layer lies in the range [0.5; 10].
PNEUMATIQUE AVEC DES PERFORMANCES OPTIMISÉES EN RÉSISTANCE AU ROULEMENT ET EN COMPORTEMENT ROUTIER
TYRE HAVING OPTIMIZED PERFORMANCE IN TERMS OF ROLLING RESISTANCE AND ROADHOLDING
REIFEN MIT OPTIMIERTER LEISTUNG HINSICHTLICH ROLLWIDERSTAND UND STRASSENSTABILITÄT
2024-03-13
Patent
Elektronische Ressource
Französisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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