Locomotive air and electricity composite braking control system

Abstract

The invention discloses a locomotive air and electricity composite braking control system, which comprises an independent control valve IBV, an automatic control valve ABV, a braking control unit BCU, a central processing unit CPU, a locomotive braking unit LBU, a dynamic braking device DBU and a tread braking unit TBU; the output end of the independent control valve IBV and the output end of the automatic control valve ABV are respectively connected with the input end of the braking control unit BCU; the output end of the braking control unit BCU is connected with the input end of the central processing unit CPU; the output end of the central processing unit CPU is respectively connected with the dynamic braking device DBU and the braking control unit BCU; the output end of the braking control unit BCU is respectively connected with the locomotive braking unit LBU and the tread braking unit TBU. The locomotive air and electricity composite braking control system is safe, reliable, energy-saving and environmentally friendly; without changing the operation habit of a driver, dynamic braking can be realized by directly controlling an air braking handle; during braking, dynamic braking is stimulated preferentially, so that energy consumption is reduced to the maximum degree, and energy recovery is implemented.

Description

technical field [0001] The invention relates to a locomotive air-electric hybrid braking control system, which belongs to the technical field of locomotive braking. [0002] Background technique [0003] Locomotive braking refers to artificially stopping the movement of a train, including making it slow down, not accelerate or stop running. At present, the braking of locomotives is mainly divided into air braking and dynamic braking. The large brakes of the air brake control the locomotive and the vehicle, while the small brakes of the power brake only control the locomotive. [0004] Among them, air brake refers to: when the driver moves the air brake valve (including the large brake and small brake) to the braking area, compressed air enters the brake cylinder, pushes the brake cylinder piston to move, and the brake cylinder piston rod acts The force is then transmitted to the brake shoe through the brake lever mechanism, so that the brake shoe tightly hugs the wheel an...

AI Technical Summary

Problems solved by technology

[0007] 1. Energy consumption, that is, the loss of compressed air;

[0008] 2. Loud noise, especially brake shoe friction sound, air compressor vibration, compressed air discharge sound;

[0009] 3. Environmental pollution, mainly brake shoe friction powder;

[0010] 4. The operation cost is high, and unfavorable factors such as frequent replacement of brake shoes and wheel wear are required

[0012] In view of the advantages of dynamic braking, diesel locomotives are gradually equipped with dynamic braking function and dynamic braking operating handle. The air brake handle is often manipulated directly to implement air brake control, so the advantages of dynamic braking are difficult to play

Images