What does a ground brake mean? What does braking system mean

Is it a chassis or a disc brake!! A series of specialized devices used in automobiles to make the outside world (mainly the road surface) exert a certain force on some parts of the car (mainly the wheels), so as to force braking to a certain extent, collectively referred to as braking systems. Its role is:

Make the moving car force to slow down or even stop according to the driver's requirements; Stable parking of stopped cars in various road conditions, including on ramps; Keep the speed of the car going downhill steady. The braking effect on the car can only be the external force acting on the car and the direction is opposite to the direction of the car, and the magnitude of these external forces is random and uncontrollable, so a series of special devices must be installed on the car to achieve the above functions. Classification:

1) According to the role of the braking system, the braking system can be divided into service braking system, parking braking system, emergency braking system and auxiliary braking system. The braking system used to make a moving car reduce its speed or even stop is called a service brake system; The braking system used to keep the stopped car in place is called the parking brake system; In the case of the failure of the service brake system, the braking system that ensures that the car can still decelerate or stop is called the emergency braking system; In the process of driving, the auxiliary service braking system reduces the speed of the vehicle or keeps the speed of the vehicle stable, but the braking system of the emergency stop of the vehicle cannot be called the auxiliary braking system. Among the braking systems mentioned above, the service brake system and the parking brake system are required for every car.

2) According to the braking control energy The braking system can be divided into human braking system, power braking system and servo braking system. The braking system that uses the driver's body as the only braking energy source is called the human braking system; A system that brakes entirely on the potential energy in the form of air pressure or hydraulics converted from the power of the engine is called a power braking system; A braking system that uses both human and engine power for braking is called a servo braking system or a booster braking system. (3) According to the transmission mode of braking energy, the braking system can be divided into mechanical, hydraulic, pneumatic, electromagnetic, etc.

At the same time, two types of braking systems are used in the form of energy transmission, which is called a combined braking system. The braking system is generally composed of two main parts: the brake control mechanism and the brake. (1) The braking control mechanism produces braking action, controls braking effect and transmits braking energy to various parts of the brake, as shown in the figure, as well as brake wheel cylinder and brake pipeline.

2) Brakes A component that generates a force (braking force) that hinders the movement or tendency of the vehicle. The brakes commonly used in automobiles use the friction between the fixed element and the working surface of the rotating element to generate braking torque, which is called friction brake. It has two structural types: drum brake and disc brake. Satisfied.

Braking device (braking equipment) is a general term for all braking and deceleration systems installed in automobiles, and its function is to make the moving car reduce speed or stop driving, or keep the stopped car still, because the structure and performance of the braking device are directly related to the safety of vehicles and personnel, so it is considered to be an important safety part of the automobile, and is generally valued. A car has a certain kinetic energy when it travels at a certain speed. As the speed of the car continues to increase, in order to slow down or stop the moving car, it is necessary to force a force on the car in the opposite direction of the car, which is called braking force.

A braking device (automotive braking system) is a device that generates braking power. The driver is able to control the braking force according to the road and traffic conditions to achieve a certain degree of forced braking, so that the car can slow down or stop, this function is the main function of the braking system. When driving downhill, the braking system is also required to maintain a stable speed, which is another function of the braking system.

In addition, when the car is stopped, reliable parking is required (including parking on ramps). Bringing the car to a reliable stop in place is also one of the functions of the braking system. It can be seen that the braking device comprises the following braking and deceleration systems:

Service brake system (commonly used braking system), that is, the general term of parts used to slow down or stop a moving vehicle; Emergency braking system, that is, the general term for parts that can still slow down or stop the moving vehicle in the case of the failure of the service brake system; Parking brake system, a general term for parts that keep a stopped vehicle (including a ramp parked) mechanically motionless; Auxiliary braking system, that is, the general name of the parts designed for the auxiliary service braking system, which can continuously reduce or stabilize the speed of the vehicle in motion (especially when going down a long slope); Automatic braking system, that is, when the brake pipeline connected to the trailer and the tractor leaks or breaks, the general name of the parts that can make the trailer automatically brake.

The braking device is a general term for all the braking and deceleration systems installed in the car, and the main function is that the car can reduce the speed on the way to the road, or the function of stopping the driving, and it is a relatively safe setting to keep the car that has stopped moving.

The basic concept of braking system is a series of professional equipment used to force a certain force on some parts of the car (mainly the wheel) of the car, and then carry out a certain degree of forced braking system on the car.

The braking system is a series of specialized devices that make the driving speed of the car can be forcibly reduced. The main function is to slow down or even stop a moving car, to keep the speed of a car traveling downhill to be stable, and to keep a stopped car still. The braking system of ordinary automobiles is mainly composed of brake pedal, vacuum booster, master cylinder (master cylinder), sub-cylinder (wheel cylinder), brake drum (or brake disc) and pipelines.

Different from the traditional automobile braking system, the electronic braking system replaces some mechanical components with electronic components, and is a mechatronics system. At the same time, the way in which hydraulic water is generated and transmitted is also different.

In the traditional braking system, the driver establishes the braking pressure in the wheel cylinder through the adjustment of the brake master cylinder, while the electronic braking system provides the braking pressure through the hydraulic pressure tank, and the stored pressure is generated by the electric piston pump, which can provide hydraulic pressure for multiple continuous braking. The control system for electronic braking generally consists of sensors, ECUs (electronic control units), and actuators (hydraulic control units).

The power transfer between the brake pedal and the wheel brakes is separated, and during braking, the braking force is controlled by the ECU and the actuator.

When the driver brakes the operation, the pedal travel sensor detects the driver's braking intention, transmits this information to the ECU, and the ECU collects various signals such as wheel speed sensor and steering angle sensor, calculates the maximum braking force of each wheel according to the driving state of the vehicle, and then sends a command to the pressure tank of the actuator to carry out the braking of each wheel. The high-pressure reservoir provides the required braking pressure for the wheel cylinder quickly and precisely without the need for the driver to think about it.