A car braking system refers to a series of specialized devices that apply a certain force to certain parts of the car (mainly the wheels), thereby forcing it to a certain degree of forced braking. The function of the braking system is: forcing the driving car to slow down or even stop according to the requirements of the driver; to make the parked car stably park under various road conditions (including on the slope); to make the car driving downhill The speed remains stable.
The automobile braking system refers to the installation of a special braking mechanism on the automobile in order to technically ensure the safe driving of the automobile and increase the average speed of the automobile. Generally speaking, the automobile braking system includes two independent devices: a driving brake device and a parking brake device. Among them, the driving brake device is operated by the driver’s foot, so it is also called a foot brake device. The parking brake device is controlled by the driver’s hand, so it is also called a hand brake device.
Drum brake Drum brake is a traditional braking method. Its working principle can be described vividly by a coffee cup. The brake drum is like a coffee cup. When you put five fingers into a rotating coffee cup, your fingers are brake pads. As long as you point five fingers outward, rub the inner wall of the coffee cup, the coffee cup will stop rotating. The drum brake on the car is simply composed of a brake oil pump, piston, brake pads and tympanum. When braking, the piston is pushed by the high-pressure brake oil of the brake cylinder to apply force to the two half-moon-shaped brake shoes To make it compact against the inner wall of the drum, friction force can prevent the brake drum from rotating to achieve the braking effect.
Disc brakes Disc brake is also called disc brake. Its working principle can be described by a disc. When you hold a rotating disc with your thumb and forefinger, the disc will also stop rotating. The disc brake on a car consists of a brake oil pump, a brake disc connected to the wheel, and brake calipers on the disc. When braking, the high-pressure brake fluid pushes the piston in the caliper and presses the brake shoes against the brake disc to produce a braking effect. Disc brakes are sometimes called disc brakes. They are divided into ordinary disc brakes and ventilated disc brakes. Ventilated disc brakes allow a gap between two brake discs to allow airflow to pass through them. Some ventilating discs also drill many circular vent holes on the disc surface or cut out ventilation slots on the disc surface. Or prefabricated rectangular ventilation holes. Ventilated disc brakes use the effect of air currents, and their hot and cold effects are better than ordinary disc brakes. The main advantage of disc brakes is that they can brake quickly at high speeds. The heat dissipation effect is better than drum brakes. The braking performance is constant and it is easy to install advanced electronic equipment such as ABS. The main advantages of drum brakes are less wear of the brake shoes, lower cost and easy maintenance.Because the absolute braking force of drum brakes is much higher than that of disc brakes, they are commonly used on rear-wheel-drive trucks.