Introduction To The Function And Performance Of Tires

The role of tires:
First, the tire is the carrier of force transmission between the vehicle and the road surface. It transmits driving force, braking force, steering force, etc. through the tire, thereby realizing the driving, braking, steering and other operations of the car.
Second, support the vehicle load. The load on the vehicle causes the tire to sink until the average pressure in the tire's contact patch equals the inflation pressure inside the tire.
Third, reduce and absorb the vibration and impact force of the car during driving, so as to avoid early damage to car parts caused by severe vibration. At the same time, it adapts to the high-speed driving state of the vehicle and reduces driving noise, ensuring driving safety, comfort, handling stability and fuel economy.
Tire performance:
Tires are the only parts of the car that are in contact with the ground. The performance of tires directly affects the safety of vehicle drivers and passengers. The importance of tire performance can be imagined. For this reason, various countries have also made regulations on tire safety performance. clear requirements. With the rapid development of the automobile industry, consumers are not only paying attention to the safety performance of tires, but also starting to pay attention to the comfort, handling stability, NVH and other performance of the vehicle.
The first category is the safety performance mandated by regulations: high speed, durability, decoupling, strength, and outer edge size.
The second category is the performance of tire assembly to vehicle testing: comfort, handling stability, NVH, fuel economy, impact resistance, dry and wet braking performance, wear performance, etc.
The third category is single tire performance testing conducted to study the performance of a single tire or the performance of a tire assembled on a complete vehicle: static ground pressure distribution, rolling resistance, tire stiffness, single tire noise, tire mode, PRAT, Six-component force test, odor resistance, air tightness, environmental protection, tire dynamic balance uniformity, etc.