What is the Friction Coefficient of Brakes?
1 Answers
The friction coefficient of brakes refers to the ratio between the frictional force of two surfaces and the vertical force acting on one of the surfaces, specifically the ratio between the frictional force of the brake pads and brake discs and the force exerted by the wheel cylinder on the brake pads. Below is relevant information about brakes: 1. Drum Brakes: Two semi-circular brake shoes are installed inside the wheel hub, and the "lever principle" is used to push the brake shoes into contact with the inner surface of the hub, generating sufficient friction to reduce the wheel's rotational speed, thereby achieving braking. 2. Disc Brakes: A brake caliper controls two brake pads to clamp onto the brake rotor on the wheel. When the brake pads clamp the rotor, friction is generated between them to reduce the wheel's rotational speed, allowing the car to slow down or stop. 3. ABS Anti-lock Braking System: Most modern cars are equipped with an ABS anti-lock braking system, which ensures the car maintains directional control while braking without skidding or fishtailing. The principle of ABS is equivalent to manually creating intermittent braking, but this intermittent braking technology operates at a higher frequency and faster speed. Therefore, when a vehicle with ABS encounters an emergency, the brake must be pressed firmly and fully in one motion.