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Air brake control unit, brake control system and brake control method

A technology of control unit and air brake, applied in the direction of brake safety system, pneumatic brake, brake, etc., can solve problems such as accidental emergency braking, affecting the normal operation of EMUs, accidental emergency braking and parking, etc., and achieves high reliability Effect

Active Publication Date: 2020-01-10
QINGDAO SRI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the above-mentioned problems caused by the failure of the emergency brake electromagnetic valve of the existing air brake control unit, such as accidental emergency brake stop, etc., and provides an air brake control unit, a brake control system and a brake control method, which can effectively solve both There is a problem that the emergency braking solenoid valve of the EMU causes unexpected emergency braking, which affects the normal operation of the EMU

Method used

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  • Air brake control unit, brake control system and brake control method
  • Air brake control unit, brake control system and brake control method
  • Air brake control unit, brake control system and brake control method

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Example 1: see image 3 , the present invention provides an air brake control unit, comprising:

[0047] Emergency brake switching valve 1;

[0048] Emergency brake exhaust valve 2;

[0049] Commonly used brake exhaust solenoid valve 3;

[0050] The common brake inflation solenoid valve 4 is used to output the common brake pre-control pressure; the outlet end of the common brake inflation solenoid valve 4 is connected to the common brake exhaust solenoid valve 3 through a pipeline;

[0051] A two-way valve 7, one end is connected to the emergency brake switching valve 1 through a pipeline, and the other end is connected to the outlet end of the common brake inflation solenoid valve 4 through a pipeline;

[0052] Relay valve 5;

[0053] Empty truck valve 6, the air inlet end of the empty truck valve 6 communicates with the two-way valve 4 through a pipeline, and the air outlet end of the empty truck valve 6 is connected with the relay valve 5 through a pipeline.

[...

Embodiment 2

[0064] Example 2: see Figure 4 , a brake control system, comprising an air brake control unit PBCU, an electronic brake control unit EBCU, and a distribution valve 19 connected to a train pipe, the air brake control unit PBCU adopts the air brake control unit described in Embodiment 1 unit.

[0065] Specifically, the distribution valve 19 is an F8 distribution valve. F8 distribution valve is the only distribution valve with stage relief function used in domestic EMUs and passenger cars. The F8 distribution valve is adopted, in the non-emergency braking state and the emergency safety loop is closed, when the emergency braking switching valve loses power due to coil burnout and other reasons, it can perform stage braking and stage relief to ensure braking, Alleviation function is normal.

[0066] The brake control system of this embodiment adopts the air brake control unit described in Embodiment 1, which can effectively avoid accidental emergency braking caused by failure o...

Embodiment 3

[0068] Embodiment 3: A brake control system, including an air brake control unit PBCU 27, an electronic brake control unit EBCU 26, a distribution valve 19 connected to the train pipe, a distribution valve output cut-off plug 25, and an air spring cut-off plug 24. The air brake control unit PBCU 27 adopts the above-mentioned air brake control unit, and the air intake end of the distribution valve output cut-off plug 25 is connected to the air intake end of the emergency brake switching valve 1 through a pipeline, The air outlet end of the distribution valve output cut-off plug 25 is connected with the air outlet end of the emergency brake switching valve 1 through a pipeline. The air spring cut-off plug 24 is connected with the empty-load vehicle valve 6 through a pipeline through an air outlet.

[0069] Specifically, the distribution valve 19 is an F8 distribution valve. F8 distribution valve is the only distribution valve with stage relief function used in domestic EMUs and...

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Abstract

The invention relates to an air brake control unit, a brake control system and a brake control method. The air brake control unit includes an emergency brake switching valve, an emergency brake exhaust valve, a service braking exhaust solenoid valve, a service braking air inflation solenoid valve, a two-way valve, a relay valve and an empty and load valve; the air outlet end of the service brakingair inflation solenoid valve is connected to the service braking exhaust solenoid valve through a pipeline; one end of the two-way valve is connected to the emergency brake switching valve through apipeline, and the other end of the two-way valve is connected to the air outlet end of the service braking air inflation solenoid valve through a pipeline; and the air inlet end of the empty and loadvalve communicates to the two-way valve through a pipeline, and the air outlet end of the empty and load valve is connected with the relay valve through a pipeline. The air brake control unit, the brake control system and the brake control method effectively solve the problem that normal operation of a train is influenced by accidental emergency braking caused by failures of an emergency brake solenoid valve.

Description

technical field [0001] The invention belongs to the technical field of rail vehicle control, and relates to a rail vehicle braking control technology, in particular to an air brake control unit, a braking control system and a braking control method for braking control of an EMU. Background technique [0002] The existing CRH series EMUs and CR400AF / BF, CR300AF / BF type Fuxing EMUs all adopt computer-controlled direct-through electro-pneumatic braking system, and the braking control system is mainly composed of air brake control unit PBCU and electronic brake control unit EBCU Composition, the air brake control unit PBCU is controlled by the electronic brake control unit EBCU, generates and outputs the brake cylinder pressure corresponding to the brake command, and then forms the braking force. The air brake control unit PBCU is usually composed of inflation and exhaust solenoid valves, emergency brake solenoid valves, empty and heavy vehicle valves, relay valves, several pres...

Claims

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Application Information

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IPC IPC(8): B61H11/10B60T17/04B60T17/18B60T17/22B60T15/02
CPCB60T15/021B60T17/04B60T17/18B60T17/228B61H11/10
Inventor 李培署石喆文郭宗斌葛汝博赛华松孔德鹏
Owner QINGDAO SRI TECH CO LTD
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