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City rail train supplement air brake controlling method

A technology for urban rail trains and supplementary gas, which is applied to pneumatic brakes, brakes, brake transmission devices, etc., can solve the problems of shortening the maintenance period of the train, increasing the maintenance cost of the train, and increasing the wear between the brake shoe and the wheelset, etc. Achieve the effect of extending the maintenance cycle, reducing maintenance costs and reducing wear and tear

Active Publication Date: 2016-03-02
ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the air brake relies on the mechanical friction between the brake shoe and the wheel set for braking, a large amount of friction energy is generated, which increases the wear between the brake shoe and the wheel set, shortens the maintenance cycle of the train, and increases the train maintenance costs

Method used

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  • City rail train supplement air brake controlling method
  • City rail train supplement air brake controlling method
  • City rail train supplement air brake controlling method

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Embodiment Construction

[0020] Such as figure 2 As shown, a method for controlling supplementary air braking of urban rail trains in the present invention includes step 1. train control module VCM1 receives the braking level; and also includes step 2. train control module VCM1 calculates the total braking force according to the braking level Value and distribution of the target value of the electric braking force of each vehicle; after step 2, two operations are performed simultaneously, and one operation includes step 3'. The train control module VCM1 distributes the total braking force value to each vehicle's braking control unit BCU2; the other operation Including step 3-step 7, step 3. The train control module VCM1 distributes the target value of the braking force of each electric vehicle to the traction control unit DCU3 of each vehicle; Step 4. The traction control unit DCU3 of each vehicle receives the target value of the braking force of each electric vehicle After the value is set, the elec...

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Abstract

The invention discloses a city rail train supplement air brake controlling method comprising the following steps: 1, VCM receives a brake level; 2, the VCM calculates a total brake force value and electric brake force target values assigned to each compartment, and two path operations are simultaneously carried out after the step2, wherein one path operation comprises step3: the VCM assigns the total brake force value to each compartment BCU, and the other path operation comprises the step 3: the VCM assigns each compartment electric brake force target value to each compartment DCU; 4, each compartment DCU starts the electric brake force; 5, each compartment DCU sends each compartment electric brake force real value to the VCM; 6, the VCM transfers each compartment electric brake force real value to each compartment BCU; 7, each compartment BCU carries out difference supplement calculation according to the total brake force value and each compartment electric brake force real value, and supplement air brake is carried out. The method satisfies electric brake priority principle, so supplement air brake can be prevented if the electric brake force is sufficient, thus reducing abrasion between brake shoes and wheels, prolonging train maintenance period, and reducing train maintenance cost.

Description

technical field [0001] The invention belongs to the field of control methods for urban rail trains, in particular to a method for controlling supplementary air braking of urban rail trains. Background technique [0002] During the braking process of urban rail trains, especially the high-speed driving stage at the beginning of braking, it is often necessary to frequently replenish air for air braking. [0003] Such as figure 1 As shown, the existing method of controlling urban rail train supplementary air brake comprises the following steps: [0004] Step 1. The train control module VCM (VehicleControlModule) receives the braking level; [0005] Step 2. The train control module VCM forwards the brake level to each vehicle brake control unit BCU (BrakeControlUnit); [0006] Step 3. The braking control unit BCU of each vehicle calculates the total braking force value and distributes the target value of the braking force of each vehicle according to the braking level; [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61H11/06B60T13/66
CPCB60T13/66B61H11/06
Inventor 刘博柳晓峰周利李骏彭冬良李海新
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD