Tyre for passenger vehicle

• Main Authors: GONDI SRIKANTH, ROTY GAEL
• Format: Patent
• Language: Chinese; English
• Published: 01.12.2023
• 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 passenger vehicles, the rolling resistance performance of which has been improved without compromising the lateral cornering stiffness. The bead (50) comprises a filling layer (70) and a lateral reinforcement layer (60), and is softened by using a low hysteresis material. The lateral cornering stiffness is increased by controlling the contact between the bead (50) and the mounting rim (100). A length LADC of a rim contact curve is measured in at least one first bead in a first section located on a ground plane. A length LCJ of the rim contact curve is measured in at least one second bead in a second section opposite the contact area with respect to the axis of rotation of the tire. The ratio of the difference in length of the rim contact curves in the two zones, 100 * (LADC-LCJ)/LCJ, is greater than or equal to 30. 本发明涉及一种用于客运车辆的轮胎(1)，其滚动阻力性能已得到改善，而且不会损害横向侧偏刚度。胎圈(50)包括填充层(70)和侧向增强层(60)，通过使用低滞后性材料而柔化。通过控制胎圈(50)与安装轮辋(100)之间的接触来使横向侧偏刚度增加。在位于接地面的第一区部中，在至少一个第一胎圈中，测量轮辋接触曲线的长度