Online inflation and detection system and method for pneumatic brake vehicle

Abstract

The invention belongs to the technical field of automobile brake and detection, and discloses an online inflation and detection system and method for a pneumatic brake vehicle. An air compressor is connected with a one-way valve tube, a one-way valve is connected with a dryer tube, and a dryer is connected to a four-circuit valve tube; an inflation port is connected to a pipeline between the one-way valve and the dryer through a first electromagnetic valve; the four-circuit valve is in parallel connection with a rear vehicle brake air storage valve, a front vehicle brake air storage valve, anauxiliary air storage cylinder and a parking brake air storage cylinder through the pipeline. According to the system, the four-circuit valve is in parallel connection with the rear vehicle brake airstorage valve, the front vehicle brake air storage valve, the auxiliary air storage cylinder and the parking brake air storage cylinder through the pipeline, the time of inflation of the vehicle through the engine is reduced, and production cycles are shortened; simultaneously the brake system can be debugged online, brake abnormalities are found in advance, and safety hazards caused by brake system defects are reduced.

Description

technical field [0001] The invention belongs to the technical field of automobile braking and detection, and in particular relates to an online inflation and detection system and method for a pneumatic braking vehicle. Background technique [0002] At present, the air brake models use the engine to drive the air compressor to work. After the air compressor works, high-pressure gas is input to the system's air storage tank, so that the vehicle braking system has braking energy (high-pressure gas), so that the vehicle can Braking; while the general vehicle only starts the engine at the tail end when it is produced online, and it takes a long time to wait for the brake to be inflated at this time. If you drive off the assembly line at this time, there may be brake air leakage, which makes the brake abnormal or even no brake, which causes certain safety hazards. The existing air pressure brakes take a long time to inflate, and the general air compressor takes about 90 seconds t...

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Problems solved by technology

[0002] At present, the air brake models use the engine to drive the air compressor to work. After the air compressor works, high-pressure gas is input to the system's air storage tank, so that the vehicle braking system has braking energy (high-pressure gas), so that the vehicle can Braking; while the general vehicle only starts the engine at the tail end when it is produced online, and it takes a long time to wait for the brake to be inflated at this time. If you drive off the assembly line at this time, there may be brake air leakage, which will make the brakes abnormal or even no brakes, which will cause certain safety hazards

The existing air pressure brakes take a long time to inflate, and the general air compressor takes about 90 seconds to inflate the vehicle brake; the vehicle can only be started after the assembly is completed, which causes the air compressor to work close to the time when the vehicle is off the assembly line At this time, the waiting time is longer; the current production line does not have an online detection method and equipment for the vehicle braking system, and the test is often carried out after the vehicle is off the assembly line.

If the brakes of the vehicle are not normal, if there is a slight air leak, it will be difficult for the driver to judge the braking distance and a collision accident will occur when the vehicle is off the assembly line; furthermore, if the brake fails completely, the vehicle will not be able to stop, and the possibility of a collision accident will be even greater. Big

[0003] In summary, the existing problems in the prior art are: the existing air pressure brake inflation time is long, and the general air compressor needs about 90 seconds to inflate the vehicle brake; the vehicle can only be started after the assembly is completed, resulting in The work of the air compressor is close to the time when the vehicle is offline, and the waiting time is longer at this time; the current production line does not have an online detection method and equipment for the vehicle braking system, and the test is often carried out after the vehicle is offline.

If the brakes of the vehicle are not normal, if there is a slight air leak, it will be difficult for the driver to judge the braking distance and a collision accident will occur when the vehicle is off the assembly line; furthermore, if the brake fails completely, the vehicle will not be able to stop, and the possibility of a collision accident will be even greater. Big

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