What's the use of tyres, high pressure tyres and low pressure tyres?
Low pressure tire has good elasticity, wide cross section, large contact with road, thin wall and good heat dissipation. These characteristics improve the vehicle ride comfort, steering control stability.High pressure tyres can increase loads, usually for carts.Because of the development of skeleton material and tire design, the tire load increased gradually, and the air pressure increased accordingly, while the cushioning performance was similar to that of the original low pressure tire. Therefore, the high-pressure tire and low pressure tire can not be adjusted according to the inflation pressure.
Classification methods are commonly used to classify low pressure tires at the same level, equivalent to the first tier tires, and high-pressure tires equal to second and third tier tires. The second level of tire load than the first level and third level 15% tires, second level 15% higher than the second level of tire inflation pressure; the general level is 20% higher than the first tire, third level and second level higher than the tire around 10%.
Influence of tire pressure on vehicle safety:1., the tire pressure is too high or too low, will cause part of the tread is not grounded, thereby reducing the tire grip, affecting the safety performance of traffic2., over inflated tires will make their carcass too tight, tire fatigue. The shell is easy to break and cut3. the inflated tires will become excessive deformation and overheating, and eventually will lead to rupture of the shell. It has been pointed out that, due to insufficient air, the shell must bear most of the weight. Its potential risk is greater than that of over inflated tires.4. pressure can also affect the control of a vehicle, for example, to a degree of understeer or excessive steering.