Are the car brakes hydraulic brake?
Yes, the vacuum boost is the use of the engine intake pipe when the negative pressure generated by the "vacuum" through a small tube, connected to a large vacuum chamber, to assist the hydraulic brake
Now the car's foot brake is hydraulic brake, and have a vacuum power, if there is no vacuum power you hard to step on the move. Do not start the case you can step on the brakes to try.
No, the car's foot brake is not all hydraulic brake, hydraulic brake is often used in small vehicles, for the braking force is not too large on the vehicle. Many types of foot brake, common for hydraulic brake, pneumatic brake and mechanical brake, etc. Hydraulic brake for small trucks, cars and some motorcycles. Pneumatic brake is mainly used for heavy goods vehicles, trucks and large passenger cars, which is characterized by a great brake effort, the system's sealing requirements are not high. But the sensitivity is worse than the hydraulic brake. Vacuum power is only a part of the brake system, used in hydraulic systems more, because the use of vacuum power method can greatly reduce the driver's foot brake pedal strength, reduce the driver's load. Now small vehicles are basically equipped with a vacuum booster.
The principle of car brakes is friction. All the cars, have to use a wear-resistant brake pads, and the car rotating parts of the tight fit, by friction to stop the rotation. Friction is different, can be divided into drums and discs two categories. Similar to the bike, the way the drum is opened from the inside to the outside, the rotating drums, the way the discs are clamped from both sides of the rotating disk. Brake power, the most primitive from the human foot, the pneumatic brake, the foot is just a switch, the brakes make the size of the brake and the brake effect does not matter. Hydraulic brake, power is also from the human foot, and now the car has a vacuum power, part of the power from the human foot, most of the power is the engine vacuum. Now the car on the application of the braking system can be divided into two kinds, one is the hydraulic brake system; one is the pneumatic brake system. The working principle of the hydraulic brake system: In physics we know that "the pressure inside the liquid is equal" with a closed pipe connected to the hydraulic pump, when the brake master cylinder pressure on the brake fluid, the liquid can not be compressed, Pressure conduction to the brake cylinder, so that the two pistons in the pump under the action of the pressure on both sides of the liquid to promote the brake pads and brake pads to produce braking force. Thus we know that hydraulic pumps must be used in hydraulic braking systems.
