Knowledge 丨 What are the characteristics of car tire patterns? After reading these, you will understand all the tires!

cartireIt is closely related to our driving safety, regular inspectionstire, Maintaining tires, and replacing tires are all necessary tasks. So, how to choose car tires, which tires are good? Here I will provide a little experience and reference to those who are thinking of buying.

The tire, as the only medium for the vehicle to contact the ground, shoulders the load,brakeAnd important responsibilities such as driving safety. When a vehicle is running on a normal road, the area where the tires really contact the ground is definitely not much larger than the area where the soles of our shoes are in contact with the ground when we walk on the road. With such a small contact area, so many important and complicated tasks need to be completed. At this time, the pattern on the tire plays a vital role.

Generally speaking, the tire pattern is the groove composed of various longitudinal, transverse and oblique directions on the tire tread. Don't look at these horizontal and vertical patterns are messy, in fact, they have a clear division of labor. Because of the longitudinal continuity, the longitudinal pattern mainly undertakes the function of draining water in rainy weather, and is also very helpful for the heat dissipation of the tire, but the grip is insufficient. The horizontal pattern has a greater gripping ability, which can make up for the congenital defects of the longitudinal pattern.

cartireIt is closely related to our driving safety, regular inspectionstire, Maintaining tires, and replacing tires are all necessary tasks. So, how to choose car tires, which tires are good? Here I will provide a little experience and reference to those who are thinking of buying.

The tire, as the only medium for the vehicle to contact the ground, shoulders the load,brakeAnd important responsibilities such as driving safety. When a vehicle is running on a normal road, the area where the tires really contact the ground is definitely not much larger than the area where the soles of our shoes are in contact with the ground when we walk on the road. With such a small contact area, so many important and complicated tasks need to be completed. At this time, the pattern on the tire plays a vital role.

Generally speaking, the tire pattern is the groove composed of various longitudinal, transverse and oblique directions on the tire tread. Don't look at these horizontal and vertical patterns are messy, in fact, they have a clear division of labor. Because of the longitudinal continuity, the longitudinal pattern mainly undertakes the function of draining water in rainy weather, and is also very helpful for the heat dissipation of the tire, but the grip is insufficient. The horizontal pattern has a greater gripping ability, which can make up for the congenital defects of the longitudinal pattern.

1. Strip pattern

The groove direction is consistent with the circumferential direction. The tires with this pattern have low rolling resistance, are not easy to slip, and have good handling stability and high-speed performance. At the same time, they have good riding comfort and low noise. It is mainly suitable for good roads, and the front wheels of trucks and buses are generally of this type.

The tire braking performance and wet stability of this pattern are relatively poor, and it is prone to cracking during long-term driving under high load, and it is usually checked frequently.

2. Symmetrical pattern

The groove in the center of the tread is the standard. The tire patterns on the left and right sides are the same or similar, or the patterns can be completely overlapped after the other side is rotated 180 degrees. The tires with this pattern have good quietness and comfort. Because the rolling resistance of the tires is reduced, it is very fuel-efficient. Therefore, economical wear-resistant tires adopt this design. The general economical family sedan, city SUV and off-road SUV all use this flower type tire.

Although this kind of tire is fuel-efficient, because the symmetrical pattern tires are designed to be relatively small, the grip and sports performance are weak.

3. Asymmetrical pattern

Take the center groove of the tire surface as the standard, and the tire patterns on the left and right sides are inconsistent. This kind of pattern block is larger than the symmetrical pattern, which means that the contact surface between the tread and the ground is greater, the grip is greater, and the sports performance is more prominent. Those sports cars and sports SUVs generally choose tires with this pattern.

Larger tread blocks mean that tire noise is also large, and the quietness and comfort are also poor, which is also its shortcoming.

4. Block pattern

The grooves are all connected to each other, showing an independent pattern structure. This pattern tire has excellent braking and handling performance, especially on snow and wet roads, and has good handling performance and excellent drainage performance. Therefore, snow tires and commercial vehicle rear wheels are all tires with this pattern. However, this independent block structure leads to poor wear resistance.

5. Claw pattern

The groove direction is perpendicular to the Zhouyuan direction, with good braking and handling performance, and good traction performance, mainly driving on poor roadsDump truck, And the rear wheels of industrial vehicles and buses. This kind of pattern tires are very noisy when driving at high speeds and have high rolling resistance, so they are not suitable for high-speed driving.

6. Compound pattern

It has the characteristics of comprehensive strip and claw pattern. The strip pattern in the center of the tire surface can provide good handling performance and prevent side slip. The claw pattern on the tread shoulder provides good traction and braking performance. Mainly installed on the front and rear wheels of trucks and buses.

7. Single guide pattern

The grooves are all connected to each other, forming an independent pattern structure. This kind of pattern has obvious directionality, large tire block and few cross-cut lines, so it is born with the characteristics of low resistance, high speed level and good control performance, so it is suitable for high-speed driving. Its main purpose is mainly installed on sports cars and sports SUVs.

However, this kind of tire is noisy and is only suitable for sports tires, and the installation direction must be the same as the driving direction, so it is best not to use it as a spare tire.

The lower the tire flatness, the better

In addition to the manufacturing process, the grade of the tire also depends on the flatness of the tire. The aspect ratio is the ratio of the height to the width of the tire. The lower the aspect ratio, the better the quality. The first car tires had very narrow treads, large diameters, and narrow and high tires. Not only did they have poor handling safety, but also, because the tires had a small force-receiving area, they had extremely poor durability. Therefore, increasing the width of the tire and reducing the inner diameter of the tire have become the development direction of the tire and the goal pursued by the tire manufacturer. Manufacturers such as Michelin and Deng Lupu have huge research and development costs for almost every type of civilian tire, and the testing process during manufacturing is also unusually strict.

So, why the lower the flatness, the better the quality? First, after the tire becomes wider, the contact area between the tread and the ground increases, thereby increasing the friction coefficient, which improves the braking performance and the durability of the tire, thereby improving driving safety; secondly, because the sidewall changes After being short, the toughness of touching the ground is strengthened, and the rotation performance is improved, thereby improving the turning performance. In addition, after the tire is low profile, when the overall height of the tire does not change greatly, the tire can be appropriately widened, which can enhance the aesthetics of the vehicle and give people a feeling of fullness.