The basic function of the automobile braking system is to slow down or stop the moving car, keep the speed of the car running downhill stable, and keep the stopped car in place or on the slope. Automobile braking system directly affects the safety and parking reliability of the automobile. Only cars with good braking performance and reliable braking system can give full play to their power performance.
Proceeding from the function and design requirements of the brake system, and according to the given design parameters, the program demonstration is carried out. After comparing the advantages and disadvantages of various types of brakes, the caliper disc type was selected. This not only ensures high braking efficiency but also good stability.
Disc brakes are also known as disc brakes. As the name suggests, they are named after their shape. It is controlled by hydraulic pressure, and its main components include brake disc, wheel cylinder, brake caliper, oil pipe and so on. The brake disc is made of alloy steel and fixed on the wheel, which rotates with the wheel. The slave cylinder is fixed on the bottom plate of the brake and is fixed. The two friction plates on the brake caliper are respectively installed on both sides of the brake disc. The piston of the slave cylinder is affected by the hydraulic pressure delivered by the oil pipe, and pushes the friction plate to press against the brake disc for friction braking. The action is like clamping the rotating disc with pliers to force it to stop.
The brake has fast heat dissipation, light weight, simple structure and convenient adjustment. Especially when the load is high, the high temperature resistance is good, the braking effect is stable, and it is not afraid of mud and water invasion. When driving in winter and bad road conditions, disc brakes are easier to stop the car in a shorter period of time than drum brakes. Many small holes are also opened on the brake disc of some disc brakes to accelerate ventilation and heat dissipation and improve braking efficiency. In contrast, drum brakes, due to poor heat dissipation, will accumulate a lot of heat during braking.
In addition, brake shoes and wheel drums are prone to extremely complex deformations under the influence of high temperatures, which are prone to brake fading and chattering, resulting in a decrease in braking efficiency.
(The article quotes Electric Detective)