First, the drum brake:
Two semi-circular brake pads are installed inside the wheel hub, and the "braking principle" is used to push the brake pads so that the brake pads contact the inner surface of the drum to cause friction.
Second, disc brakes:
Use the brake calipers to control the two brake pads to clamp the brake discs on the wheels. When the disc is clamped by the disc, friction occurs between the two.
When the car is driving on wet or icy low-friction roads, if excessive braking occurs, the wheels will be locked by the braking device and lose the grip, causing the vehicle to lose its ability to control the direction. In order to enable the vehicle to effectively control the forward direction on such dangerous roads, ABS "Anti-lock Braking System" was developed.
The increasingly powerful ABS "Anti-lock Braking System" allows you to use the TCS-Traction Control System and VSC-Vehicle Stability Control (equal to ESP) when you are more comfortable. To control the tracking performance of the vehicle while driving, and control the stability of the vehicle when cornering.
Third, the inflatable brake
Basic structure: The brake device is composed of three parts: a transmission shaft, a fixed hollow shaft, and a highly elastic sealing rubber ring. The fixed hollow shaft sleeve is on the transmission shaft, and a large gap is left between the two. In this gap, a highly elastic sealing rubber ring is installed. The inner ring of the rubber ring is always rigidly connected and fixed to the transmission shaft, and the outer ring is inlaid with several friction plates, leaving a certain gap with the inner diameter surface of the fixed hollow shaft.
Working principle: When the high-elastic sealing rubber ring is not filled with high-pressure air, there is a gap between the friction plate and the inner diameter surface of the fixed hollow shaft. At this time, the transmission shaft can rotate freely. When high-pressure air is filled into the highly elastic sealing rubber ring, the rubber ring expands due to inflation and its outer diameter becomes larger. The gap between the original and the fixed hollow shaft disappears, and the friction plate and the fixed hollow shaft become rigid contact. , The transmission shaft is "bulged to death" by the rubber ring in the fixed hollow shaft to stop the transmission and realize the function of braking. When the air pressure in the highly elastic sealing rubber ring is released, its inner diameter becomes smaller and the transmission shaft can rotate freely.
