Tyre with optimized performance in terms of rolling resistance and grip

• Main Authors: GONDI SRIKANTH, ROTY GAEL
• Format: Patent
• Language: Chinese; English
• Published: 15.12.2023
• Subjects: DEVICES OR ARRANGEMENTS RELATED TO TYRES; PERFORMING OPERATIONS; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; VEHICLE TYRES; VEHICLES IN GENERAL

The invention relates to a tyre (1) for a passenger vehicle, the performance of which is improved in terms of rolling resistance and which does not impair the lateral drift stiffness. The bead (50) is softened by using a low hysteresis material. Lateral drift stiffness is compensated by using a rigid and low-hysteresis sidewall layer (30). The volume of the compound layer having a viscoelastic loss Tan (delta) max of less than or equal to 0.10 in the lower region accounts for between 30% and 90% of the total volume of the lower region, and the shear stiffness modulus G '(M3) of the sidewall layer is in the range of [0.5; 10]. 本发明涉及一种用于客运车辆的轮胎(1)，其在滚动阻力方面的性能已得到改善，而且不会损害横向漂移刚性。胎圈(50)通过使用低滞后性材料而软化。通过使用刚性且低滞后性的胎侧层(30)来弥补横向漂移刚性。下部区域中粘弹性损耗Tan(δ)max小于或等于0.10的配混物层的体积占下部区域总体积的30％至90％之间，并且胎侧层的剪切刚度弹性模量G'(M3)在[0.5；10]范围内。