An electronically controlled automatic braking system for a trailer

Abstract

An electronic control automatic braking system for a trailer comprises a trailer pneumatic control valve, a trailer air cylinder, a pressure sensor (2), a trailer automatic braking controller (3), an electromagnetic valve (4) and a T-joint (5), wherein the trailer automatic braking controller (3) is connected with a central controller of a tractor, the pressure sensor (2) is installed on a saddle of the tractor, and the pressure sensor (2) and the electromagnetic valve (4) are both connected with the trailer automatic braking controller (3); a connector at one end of the T-joint (5) is connected with the trailer pneumatic control valve, a connector at another end of the T-joint (5) is connected with a traveling brake pipeline of the tractor, a connector at the third end of the T-joint (5) is connected with a tractor air cylinder, and the electromagnetic valve (4) is arranged on a pipeline enabling the T-joint (5) to be connected with the tractor air cylinder. Quick responding of the automatic braking system for the trailer is achieved, the trailer can be braked automatically when the trailer collides with the tractor, and the occurrence of accidents caused by collision between main trailers is effectively reduced.

Description

technical field [0001] The invention relates to a braking device, in particular to an electronically controlled automatic braking device for a trailer, which belongs to the technical field of automobile braking systems. Background technique [0002] Transporting goods by trailer can improve the quality utilization factor of the vehicle, thereby improving fuel efficiency, and it is convenient to load and unload, so trailers are widely used. Since the trailer and the tractor are connected through the traction pin and the saddle, they are not a whole, so when the vehicle slows down, brakes and turns, the trailer will collide violently with the tractor due to its inertia, especially the impact force is relatively large. And when there is a certain angle between the collision direction of the trailer and the driving direction, it will cause the oversteering of the vehicle and the overlapping phenomenon of the trailer and cause a major safety accident. [0003] China patent autho...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an electronically controlled automatic braking device for trailers in view of the shortcomings of the existing trailer braking system, such as braking delay, inconvenient reversing operation, many accessories, and complex structure.

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