Factors of affecting the quality of braking

Braking

The process of braking is the process of two brake pads clamping the brake disc, generating friction between them and reducing speed. Therefore, the quality of brake pad and brake disc materials and the size of friction coefficient will directly affect the braking performance.

Ceramic brake pads and carbon fiber ceramic brake discs used in high-performance sports cars have large friction coefficient, small heat recession and short braking distance. There is also the number of pistons in the brake cylinder. In a common car, there is only one piston in a cylinder. There may be 2 or 3 pistons in the car. In this way, the power to push the brake pads is large and uniform, which will also affect the braking performance. 

Tyre

The wide tire has a large contact area with the ground, the friction coefficient increases, which can also better provide grip, and the braking distance can be shortened; Narrow tires have relatively small contact, low friction and relatively long braking distance.

There will also be differences in different tire patterns. For example, a certain tire claims to use "shark skin technology", which has very good drainage performance. The combination of asymmetric and special patterns improves the adhesion of the tire on the water, so the braking distance will be shorter when braking in the same wetland.

Overload

The heavier the vehicle, the longer the braking distance. This is why you can hide when you meet a full (overloaded) truck. It's not that he doesn't brake, but that the inertia is too large and the braking distance is too long.

Different driving surfaces

Different road conditions also affect the braking distance. The friction of different roads is different between rain ground and dry ground, asphalt road and dirt road. The braking distance in wetland is longer than that in dry land.

Speed

Obviously, the speed is the key factor affecting the quality of braking. If the speed is too fast, the braking distance becomes longer and the safety factor decreases linearly.

In addition to the above factors affecting the quality of braking, there is also a great relationship between electronic equipment. For example, ABS, EBD, etc. In particular, the ABS anti lock system always keeps the wheels in the state of being locked but not locked, and in the state of maximum friction, because the maximum static friction is greater than the sliding friction. Once locked, it becomes sliding friction and the friction becomes smaller. Another advantage is that because the wheels are not locked, the direction is controllable, and you can continue to turn the direction to avoid obstacles.