The adhesion performance of tire and road surface is better, and its traction performance and braking performance are superior in the same condition. Tire adhesion refers to cut between the tyre and the road to limit of the reaction force, and its value is slightly larger than that of the tire is completely still when and road surface friction, it includes the lateral force of the tyre and circumferential adhesion. The adhesion coefficient is the ratio of the adhesion to the load. The adhesion performance of tire and road is the decisive factor for the safety of automobile. Statistics show that there are 5%~10% road transport accidents are caused by insufficient adhesion, the accident rate on the wet road is higher, can reach the safety accident of 25%~40%. So,The International Road Association provides the minimum adhesion coefficient under different road conditions in the range of 0.4~0.6. The height of the attachment coefficient depends on the structural parameters, the use condition, the load and the internal pressure, and the speed and the road surface. The adhesion coefficients of different pavement are listed in table 2-1.
正在翻譯中..
