Under normal circumstances, small cars are equipped with front and rear drum brakes, medium-sized cars often use front and rear disc brakes, and luxury cars basically list the front and rear ventilated disc brakes as standard. From the above point of view, we will find that the more expensive the model, basically choose to use disc brakes. So what is the difference between drum brakes, disc brakes and ventilated disc brakes? Xiao Bian today to explain one by one.

Speaking of drum brakes, then we have to mention its history. Drum brakes are almost the originator of automobile brakes. They began to serve carriages in 1902 and began to be used in large quantities in automobiles after 1920. Therefore, the history of drum brakes has been hundreds of years, accompanied by the development of automobiles. history. Regarding the principle of drum brakes, it is actually very easy to understand. Vehicles with drum brakes will have a brake drum that runs with the wheels. The brake drum is equipped with brake pads. When the driver steps on the brake, The brake piston will push the brake pads around the brake drum to generate friction to achieve the braking effect.

The advantages of drum brakes are their low production cost and simple structure. Therefore, under normal circumstances, mini-cars and small cars use a front and rear drum brake layout. However, the braking performance and heat dissipation of drum brakes are not very good, mainly manifested in the obvious thermal attenuation of continuous braking, the braking performance gap on different roads is also relatively large, and the stability is also average.

Disc brake is our most common type of brake, almost throughout the entire automobile market, no matter what type of car it is, it has become the standard configuration of modern cars. The principle of disc brake is simpler to explain than that of drum brake. By using fixed brake pads to keep the brake disc running with the wheels, it has a braking effect.

Compared with drum brakes, disc brakes have better heat dissipation, and the response speed of the brakes is more flexible. When passing through a waterlogged road section, it can better remove the water clamped in the brake pads. The maintenance is simple and the replacement cost It is also relatively low. However, because the friction area of the disc brake is small, the disc brake needs a larger brake disc in order to improve the deficiency. In addition, it is necessary to improve the brake fluid and regularly replace the severely worn brake discs.

In addition to the above two categories, there are several types like disc brakes. For example, the ventilated disc brakes often used in high-end cars have a hollow interior. Compared with solid disc brakes, the ventilated disc is more conducive to air circulation, thereby reducing the temperature of the brake system.