1 The impact of high tire pressure
a. The friction and adhesion of the tire will be reduced, which will affect the braking effect;
b. Causes steering wheel vibration and deviation, which reduces driving comfort;
c. Accelerate the local wear of the pattern in the center of the tire tread, and make the tire life uplift;
d. The vibration of the body becomes larger, which indirectly affects the life of other parts;
e. The tire cord will be subjected to excessive stretching and deformation, and the elasticity of the carcass will decrease, which will increase the load on the car during driving;
f. And reduce the rolling resistance. When encountering sharp objects such as nails and glass on the road, it is easy to penetrate into the tire, and the impact will cause internal cracks and bursts, resulting in a tire burst.
2 The impact of low tire pressure
a. The coefficient of friction with the road surface will increase and fuel consumption will increase;
b. Causes the steering wheel to be very heavy, easy to run off and other unfavorable factors such as driving safety;
c. Increase the amount of movement of each part of the tire, and excessive rolling causes abnormal heating of the tire;
d. Reduce the function of the cord and rubber, causing delamination or excessive friction between the cord and the rim, causing damage to the bead and abnormal wear;
e. The friction between the tire and the ground increases exponentially, the tire temperature rises sharply, the tire becomes soft, and the strength drops sharply. If the vehicle is driving at high speed, it may cause a puncture;
f. Too low tire pressure will increase the deformation of the carcass, the sidewalls are prone to cracks, and flexing motion occurs at the same time, which leads to excessive heat generation, promotes rubber aging, tire cord fatigue, cord breakage, and increases the tire grounding area , Accelerate shoulder wear.