KR20000045991A - Selection on brake mode of railroad car - Google Patents

Abstract

PURPOSE: A railroad car runs connecting with various kinds of passenger or wagon cars. According to its locomotive, a railroad car brake itself by electric braking (revival braking) and air braking(mechanical braking) at the same time. If electric and mechanical braking happens in an associated way, an actuating time of air braking should be considered. Therein, brake-processing time takes longer remarkably than using only an electric braking. An operator controls a load of separate railroad car manually. Therefore, a problem of safety is raised due to a different sort of braking pressure-values. CONSTITUTION: A selection on brake mode of railroad car is provided to select one of four different kinds of modes by a load of wagon or passenger car. A slowdown and braking pressure of braking pipe is set differently through an each step of a main controller. If a mode is selected by a switch on a control panel, braking and slowdown of a locomotive is performed by a braking pipe and pressure amount of slowdown according to the selected mode. Therefore, a braking load of each passenger and wagon car is decided by whether a car is for passenger or wagon, by whether a maximum speed, braking and slowdown of car is linear or stepping, and by a kind of pressure value licensing pressure.

Description

How to choose a braking mode for railway vehicles

The present invention relates to a method for selecting a braking mode of a railway vehicle, and in particular, the braking mode of a locomotive is divided into a plurality of selection modes according to a combination of a wagon and a passenger car, and thus the braking mode selection of the railway vehicle can effectively transmit a braking force. It is about a method.

In general, a railroad car is driven by connecting a plurality of passenger cars and wagons, and brakes the train by using electric braking (regenerative braking) and air braking (mechanical braking) according to the types of locomotives.

In this case, when the electric braking and the air braking are combined as described above, the response speed of the air braking should be taken into consideration so that the braking fastening time is significantly increased as compared with the electric braking alone. To adjust the load on the train.

Accordingly, the braking force is different from the load, so the braking response and tightening time are long, and according to the towing load, it is controlled in two types of carriage mode and freight car mode. Is raised.

Accordingly, the present invention has been made to solve the above problems, and the braking mode of the locomotive is divided into a plurality of selection modes according to the combination of the wagon and the carriage, and accordingly set the amount of braking of each carriage and the wagon, the driver's seat Since each mode is selected and a predetermined braking force can be transmitted according to the switch operation of the present invention, the present invention relates to a method for selecting a braking mode of a railway vehicle such that an operator does not manually set the pressure of each locomotive.

1 is a schematic block diagram of a brake of a railway vehicle according to the present invention.

1-mode selector switch, 2-brake control,

3-reservoir, 4-braking means,

5-braking tube, 6-tripressure,

7-pressure connection.

In order to achieve the above object, the present invention, four selection modes are set in accordance with the braking load of the wagon and the carriage, the relaxation and braking pressure of the braking tube that is set differently for each step of the daytime controller to the respective modes When the selection mode is selected by the selection switch of the driver's seat, the locomotive is driven according to the amount of braking and loosening pressure of the braking tube set according to each selection mode.

Here, the braking loads of the wagons and the carriages are determined by whether the wagons or the carriages, the maximum speed, the braking and the breakdown of the trains are linear or staircase, and the amount of variables such as the type of the electromagnetic valve applying the pressure.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic block diagram of a braking device for a railway vehicle according to the present invention, including a selection switch 1 for selecting four modes and a braking control device 2 in which a signal is output in accordance with the mode selection of the switch 1. ), A reservoir (3) in which the normal operating pressure is stored, and a braking means (4) for braking the locomotive with the air pressure from the reservoir (3).

Here, a triple pressure valve (6) is provided on the braking tube (5) between the braking means (4) and the air cylinder (3), and the pressure of the braking tube (5) is applied to the braking means (4). Is converted to the cylinder pressure. In addition, a pressure connection means 7 is provided between the three-pressure valve 6 and the control reservoir 3 so that the pressure of the control reservoir 3 in accordance with the converted mode according to the signal from the braking control device 2 is provided. To the braking tube (5).

Therefore, when each braking mode is selected by the selection switch 1, the pressure connecting means 7 is adjusted to the newly set pressure by the braking control device 2 and the pressure of the air cylinder 3 is adjusted to the converted pressure. It is delivered to the copper tube (5), and is injected into the braking means (4) again through the three pressure valve (6).

Here, each mode selected by the switch 1 is divided according to the type of vehicle, the maximum speed braking type, the type of electronic valve, etc. The first mode is a wagon and the maximum speed is 110 km / h, which is a single solution. Is a locomotive with a linear mode, the second mode is a wagon, a maximum speed of 110 km / h, a UIC-type brake system, a staircase relief, and an electronically variable P4a-valve. Is a 150km / h, a UIC-type brake system, a staircase relief and an electromagnetic valve KE-valve, which provides the braking pressures shown in the following table.

Table 1

step Brake Tube Pressure (Brake) Brake Tube Pressure (Breakdown) Quick relaxation 8.0bar - Driving 5.00 bar 5.00 bar Last loose 4.60 bar 4.70 bar Early application 4.50 bar 4.60 bar 2-stage 4.40 bar 4.50 bar 3-stage 4.27 bar 4.37 bar 4-stage 4.14 bar 4.24 bar 5 steps 4.01 bar 4.11 bar 6 steps 3.88 bar 3.98 bar 7-speed 3.75 bar 3.85 bar Full brake 3.30 bar 3.20 bar Emergency brake 0bar 0bar

In addition, the fourth mode is a passenger car, the maximum speed is 150km / h, the stairs are relaxed, the electromagnetic valve CK1P control valve provides the braking pressure as shown in the following table.

Table 2

step Brake Tube Pressure (Brake) Brake Tube Pressure (Breakdown) Quick relaxation 8.0bar - Driving 6.3 bar 6.3 bar Last loose 5.8 bar 5.8 bar Early application 5.6 bar 5.7 bar 2-stage 5.5 bar 5.6 bar 3-stage 5.4 bar 5.5 bar 4-stage 5.2 bar 5.3 bar 5 steps 5.0bar 5.1bar 6 steps 4.8 bar 4.9 bar 7-speed 4.5 bar 4.6 bar Full brake 4.3 bar 4.5 bar Emergency brake 0bar 0bar

Here, the steps in the table represent braking and releasing pressures according to each operation step of the weekly controller.

On the other hand, the selection of the mode is set before the start of the locomotive or the connection with other trains, for example, in the case of changing from the third mode to the fourth mode (when driving), the braking tube by the pressure connecting means 7 of the locomotive. The pressure in (5) is switched from 5.0 bar to 6.3 bar and each step in Table 1 is changed to each step in Table 2 to provide the pressure described for each step.

Therefore, when the driver selects one of the above modes with the selector switch 1, the pressure of the brake tube 5 is set by the brake controller 5 as shown in the table according to each step of the weekly controller. This eliminates the need for the driver to manually control the braking and breaking pressure of each train.

As described above, according to the present invention, when the driver of the driver's seat selects the mode according to the braking load of the vehicle, the braking pressure of each passenger car is set to the pressure according to the above modes, so that the driver brakes and breaks the pressure of each train. This has the effect of eliminating the need to manually set.

Claims (2)

Four selection modes are set according to the braking loads of the wagon and the passenger car, and the release and braking pressure of the braking tube, which is set differently for each stage of the daytime controller, are set according to the respective modes, and the selection is made by the driver's selection switch When the mode is selected, the braking mode selection method of the railway vehicle, characterized in that braking and loosening of the locomotive according to the braking and loosening pressure of the braking pipe set according to each selection mode. The method of claim 1, wherein the braking loads of the wagon and the wagon are a wagon or a wagon, and whether the maximum speed, the braking and the breakdown of the wagon are linear or stepped, and the amount of the electronic valve applying the pressure. Braking mode selection method of the railway vehicle, characterized in that determined.