The characteristic of the dynamic braking system is tha […]
The characteristic of the dynamic braking system is that the driver's body is only used as a control energy source, not a braking energy source.
In the dynamic braking system, the energy used for braking is the air pressure generated by the air compressor or the hydraulic energy generated by the oil pump, and the air compressor or the oil pump is driven by the car engine.
There are three types of dynamic braking systems: pneumatic braking system, pneumatic hydraulic braking system and full hydraulic dynamic braking system.
The energy supply device and transmission device of the pneumatic brake system are all pneumatic. The control device is mainly composed of pneumatic control components such as a brake pedal mechanism and a brake valve. Some cars also have a hydraulic control transmission device in series between the pedal mechanism and the brake valve.
The energy supply device and control device of the gas-top liquid brake system are the same as the pneumatic brake system, but the transmission device includes two parts: pneumatic and hydraulic.
Except for the brake pedal mechanism in the full hydraulic power brake system, its energy supply, control and transmission devices are all hydraulic.
One, pneumatic brake system
Pneumatic braking system is suitable for medium-sized and above, especially heavy-duty trucks and passenger cars.
1. Air brake circuit
There are three types of connecting pipelines between the components of the pneumatic brake system: ① Energy supply pipelines, between the components of the energy supply device (such as air compressors, air reservoirs), and between the energy supply device and the control device (such as brake valve) ) Connecting pipeline; ② actuating pipeline, connecting pipeline between control device and brake actuating device (such as brake air chamber); ③ control pipeline, between one control device and another control device The connecting pipeline. If there is only one air pressure control device in the brake system, that is, only one brake valve, there is no control pipeline.
