CN107207002B - Automatic calibration to the flow measurement of locomotive air braking system - Google Patents
Automatic calibration to the flow measurement of locomotive air braking system Download PDFInfo
- Publication number
- CN107207002B CN107207002B CN201580075449.7A CN201580075449A CN107207002B CN 107207002 B CN107207002 B CN 107207002B CN 201580075449 A CN201580075449 A CN 201580075449A CN 107207002 B CN107207002 B CN 107207002B
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- China
- Prior art keywords
- brake pipe
- pressure source
- pressure
- pipe pressure
- main reservoir
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/228—Devices for monitoring or checking brake systems; Signal devices for railway vehicles
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Systems And Boosters (AREA)
Abstract
A kind of system and method for the flow measurement device (44) for automatic calibration machine vehicle air brake control system.Air damping controls computer (16) activation magnet valve (54) to create the predetermined amount of flow from brake pipe by aperture (60) to exhaust apparatus, to create reference stream magnitude to realize the calibration of flow measurement device.The system is by step needed for automating flow measurement calibration under the control of the computer come a possibility that reducing human error and changeability.
Description
Technical field
The present invention relates to locomotive braking systems, and more particularly, to one kind for from supply (master) reservoir to
The system and method that the measurement result of the compressed air require of brake pipe is calibrated.
Background technique
Locomotive air braking system is by adjusting in the compressed air hose (referred to as brake pipe) for continuing to pass through entire train
Pressure control train braking.Brake pipe must slave car owner supply reservoir and supply compressed air, to discharge train system
It moves and operates braking system.Pneumatic brake systems allow the flow of user's control compressed air disengaging brake pipe, to apply and release
Put train braking.When operator is used to from when supplying the compressed air of reservoir to brake pipe charge, operator is provided of body
The instruction of product air mass flow.Because air mass flow is reduced with brake pipe close to goal pressure, air mass flow instruction is provided
The information of the degree of expectation target pressure is had reached about brake pipe in entire train.
Various laws and rules, which are described in detail, may exist before the train of stopping can be allowed to be operated
Maximum air flow amount.Meet these and other laws and regulation needs the periodic calibration of Flow Measuring System, to ensure to operate
Member takes action to effective information.However, the conventional method needs for calibrating locomotive air damping Flow Measuring System are several
A manual step.A possibility that cost of labor and operator's fault are represented due to each manual step, in the art
There are the needs of the traffic alignment method of automation.
Summary of the invention
The present invention includes a kind of following system, is used in the Pneumatic brake systems with flow measuring components to flow
Measurement result carries out automatic calibration for exporting the volumes of air illustrated between main reservoir pressure source and Brake pipe pressure
The signal of flow.Brake pipe pressure is selectively couple to exhaust apparatus via the aperture with predetermined diameter by magnet valve.By coupling
The controller for being connected to magnet valve is programmed to when Brake pipe pressure source is couple to exhaust apparatus by magnet valve, based on the body by aperture
Air mass flow is accumulated to calibrate to the signal of flow measuring components.The system further includes brake pipe relay valve, has and is connected
It is connected to the entrance of main reservoir pressure source and is connected to the outlet of Brake pipe pressure, in order to match the elder generation for being supplied to relay valve
Pilot power, the brake pipe relay valve are moveable so that Brake pipe pressure is selectively couple to main reservoir pressure source or row
Device of air.Flow measuring components are positioned between main reservoir pressure source and the entrance of brake pipe relay valve.Balanced reservoir
Pilot pressure control assembly is coupled to the guide of brake pipe relay valve, to control relay valve.It is equal that controller is programmed to operation
The reservoir pilot pressure control assembly that weighs is to realize desired goal pressure grade.Balanced reservoir pilot pressure is connected to system
Dynamic pipe relay valve, is connected to main reservoir pressure source or exhaust apparatus for Brake pipe pressure, until Brake pipe pressure is equal to
Until weighing apparatus reservoir pilot pressure.The man-machine interface communicated with controller, which be used to provide to the operator of train, illustrates volume
The visual representation of the calibrated signal of air mass flow.Controller can be further programmed to operate balanced reservoir elder generation pilot
Power control assembly is to carry out guide to brake pipe relay valve, so that Brake pipe pressure is in response to being provided to the order of man-machine interface
And desired goal pressure is controlled to for calibrating.
The method according to the present invention calibrated in the Pneumatic brake systems of train to flow measurement starts from
Magnet valve is activated, Brake pipe pressure is couple to exhaust apparatus via the aperture with predetermined diameter.Measure main reservoir pressure
Volume air flow between power source and Brake pipe pressure.Then, exhaust apparatus is coupled to via magnet valve in Brake pipe pressure
Later, measurement result is based upon the volume air flow in aperture.Preferably, method includes the following steps: to main storage
Before the measurement result of volume air flow between storage pressure source and Brake pipe pressure is calibrated, main reservoir pressure is waited
Pressure in power source is equal to predetermined amount.Preferably, this method is further comprising the steps of: to main reservoir pressure source and brake pipe
Before the measurement result of volume air flow between pressure is calibrated, it is pre- to realize to increase balanced pilot pressure as needed
Quantitative Brake pipe pressure.Then the operator of train can the have been notified calibrated measurement result of volume air flow, or
Person can be presented preservation or abandon the option of calibration.Measure the volumes of air stream between main reservoir pressure source and Brake pipe pressure
The step of amount, can be performed and carrying out guide to brake pipe relay valve, and brake pipe relay valve has main reservoir pressure
Source is couple to the entrance for being connected to main reservoir pressure source of Brake pipe pressure by flow measuring components and is connected to system
The outlet of dynamic pipe pressure.Based on volume air flow to the volumes of air stream between main reservoir pressure source and Brake pipe pressure
The step of measurement result of amount is calibrated can be by when the pressure etc. in the pressure and brake pipe in main reservoir pressure source
When predetermined amount, to the volume air flow illustrated by flow measuring components according to the volume air flow offer by aperture
Signal calibrated to complete.The step of carrying out guide to brake pipe relay valve can be related to operating balanced reservoir elder generation pilot
Power control assembly is to carry out guide to brake pipe relay valve, so that Brake pipe pressure is when being connected to exhaust apparatus via aperture
Realize predeterminated target pressure.This hair is typically executed in response to being input to the order of operator interface by authorized operator
Bright method.
Detailed description of the invention
It reads in conjunction with the accompanying drawings described in detail below, will be more fully understood and understand the present invention, in which:
Fig. 1 is the schematic diagram of Pneumatic brake systems according to the present invention；And
Fig. 2 is the schematic diagram of the calibration process of Pneumatic brake systems according to the present invention.
Specific embodiment
It referring now to the drawings, it can be seen that can be right in Fig. 1 wherein identical appended drawing reference always shows identical part
The Pneumatic brake systems 10 that air damping flow measurement is calibrated automatically.System 10 generally includes brake pipe 12, prolongs
It stretches the length of train and is connected to the braking valve module 14 operated by air damping control computer 16.Air damping control
Computer 16 is interconnected to locomotive operator display/interface 18 to provide the status information about Pneumatic brake systems 10, and
And allow the braking of operator's control train.For example, operator carrys out the pressure in order brake pipe 12 using display/interface 18
Reduction, so that the braking of train be made to be applied.
It brakes valve module 14 and is interconnected to the main supply reservoir 20 of compressed air via supply connection 22.Supply connection 22
With balanced reservoir (ER) guide (pilot) the pressure control with a pair of control valve 26 and 28 for being coupled to balanced reservoir 30
Component 24 processed is connected to.The variation of pressure in balanced reservoir 30 be used to be coupled to brake pipe to via supply connection 34
12 BP (brake pipe) relay valve 32 carries out guide.BP relay valve 32 can be by ER pilot pressure control assembly 24 in brake pipe 12
It is connected to first position, brake pipe 12 and the exhaust apparatus of the outlet line 38 with the choker 40 for leading to exhaust apparatus EX
The second position of EX isolation and brake pipe 12 via the refilling route 42 of supply connection 22 is connected to are connected to main confession
It answers reservoir 20 and is carried out guide between the third place that can be recharged from it.Pressure rating in brake pipe is by pressing
Force measuring device 62 measures.Refill route 42 include flow measuring components 44 comprising: fixed diameter aperture 46 and be located at hole
A pair of of pressure transducer 48 and 50 on opposite sides of mouth 46.Component 44,24,54 and 62 with control computer 16 communicate, with from
Pressure transducer 48,50 and 62 provides data.As a result, air damping control computer 16 can be determined by refilling route 42
Flow velocity and brake pipe 12 in pressure, and the degree for having reached about brake pipe 12 expectation target pressure is provided to operator
Information needed.
The calibration of the flow measurement executed by flow measuring components 44 is traditionally needed in one end of brake pipe 12
Place's physics adds the traffic alignment aperture of dedicated manual operation.In order to automatically provide calibration, the present invention includes magnet valve 54,
With the outlet line 58 for being coupled to the incoming line 56 of supply connection 34 and being connected to exhaust apparatus.The aperture of predetermined diameter
60 are positioned in incoming line 56.Magnet valve 54 can be in the first position that brake pipe 12 is isolated with exhaust apparatus EX and brake pipe 12
It is connected between the second position of exhaust apparatus EX and moves.The operation of magnet valve 54 allows brake pipe 12 to be vented by aperture 60,
To establish predetermined flow rate based on scheduled 60 size of aperture.BP relay valve 32 can be by ER pilot pressure control assembly 24 first
The phase same rate to realize brake pipe 12 to be vented by aperture 60 with brake pipe is led to be refilled by main supply reservoir 20
The predetermined pressure target filled out.Since the reloading rate for the brake pipe 12 for independently supplying reservoir 20 should be nominally equivalent to lead to
The controlled exhaust flow rate in aperture 52 is crossed, therefore flow measuring components 44 can be for the known flow established by magnet valve 54 and aperture 60
Speed and be calibrated.
With reference to Fig. 2, air damping control computer 16 can be executed selects calibration 72 with user on engine display 18
The calibration process 70 of beginning.It will be appreciated by those skilled in the art that display 18 can be first before selecting calibration process 72
It keeps screen it is required that user navigates to and/or inputs the identification information of such as username and password to limit to calibration process 70
Access.Once having selected for calibrating at step 72, then magnet valve 54 can be activated to pass through brake pipe 12 by controlling computer 16
Atmosphere is discharged to by exhaust apparatus EX 74.Next, in a step 76, control computer 16 can turn round balance reservoir 30
In pressure, to realize desired amount of pressure in brake pipe 12, such as 90psi.In step 78, once main supply reservoir 20
In pressure be equal to predetermined grade (such as 130psi) traffic alignment to amount appropriate can will then in step 80 be made
It is 60 cubic feet per minute with example digital.Finally, in step 82, the notice that calibration process 70 is completed can be provided.
Claims (15)
1. a kind of system for being calibrated automatically in Pneumatic brake systems to flow measurement, comprising:
Magnet valve is used to Brake pipe pressure source being selectively coupled to exhaust apparatus via the aperture with predetermined diameter；
Flow measuring components, the volume for being used to export illustrate between main reservoir pressure source and the Brake pipe pressure source are empty
The signal of throughput；And
Controller is coupled to the magnet valve, and is programmed to be couple to the Brake pipe pressure source when the magnet valve
School is carried out come the signal to the flow measuring components based on the volume air flow by the aperture when exhaust apparatus
It is quasi-.
2. system according to claim 1 further includes brake pipe relay valve, has and be connected to the main reservoir pressure
The entrance in power source and the outlet for being connected to the Brake pipe pressure source.
3. system according to claim 2, wherein the flow measuring components are positioned in the main reservoir pressure source
Between the entrance of the brake pipe relay valve.
4. system according to claim 3 further includes the balanced storage for being coupled to the guide of the brake pipe relay valve
Device pilot pressure control assembly, wherein the brake pipe relay valve is moveable selectively by the Brake pipe pressure source
It is couple to the main reservoir pressure source or the exhaust apparatus, until balanced reservoir pilot pressure is by nominally matching
Only, wherein balanced reservoir is coupled to a pair of control valve of balanced reservoir pilot pressure control assembly.
5. system according to claim 4, wherein the controller is programmed to operate balanced reservoir elder generation pilot
Power control assembly is to carry out guide to the brake pipe relay valve, so that realizing the predetermined grade of Brake pipe pressure.
6. system according to claim 5 further includes man-machine interface, communicated with the controller for column
The operator of vehicle provides the visual representation for illustrating the calibrated signal of volume air flow.
7. system according to claim 6, wherein the controller is further programmed to operate the balanced reservoir
Pilot pressure control assembly is to carry out guide to the brake pipe relay valve, so that in response to being provided to the man-machine interface
Order the predetermined grade to realize Brake pipe pressure.
8. a kind of method calibrated in the Pneumatic brake systems of train to flow measurement comprising following steps:
Activate magnet valve Brake pipe pressure source is couple to exhaust apparatus via the aperture with predetermined diameter；
Measure the volume air flow between main reservoir pressure source and the Brake pipe pressure source；And
It is empty based on the volume by the aperture after the Brake pipe pressure source is couple to the exhaust apparatus by the magnet valve
Throughput to carry out the measurement result of the volume air flow between the main reservoir pressure and the Brake pipe pressure source
Calibration.
9. according to the method described in claim 8, further comprising the steps of: to the main reservoir pressure source and the braking
Before the measurement result of volume air flow between pipe pressure source is calibrated, the pressure in the main reservoir pressure source is waited
Power is equal to predetermined amount.
10. according to the method described in claim 9, further comprising the steps of: to the main reservoir pressure source and the system
Before the measurement result of volume air flow between dynamic pipe pressure source is calibrated, balanced pilot pressure is controlled to realize braking
The predetermined amount of pipe pressure.
11. according to the method described in claim 10, further comprising the steps of: having notified the operator of train calibrated, volume is empty
The measurement result of throughput.
12. according to the method for claim 11, wherein between measurement main reservoir pressure source and the Brake pipe pressure source
Volume air flow the step of the following steps are included: to brake pipe relay valve carry out guide, have be connected to main storage
The entrance of device pressure source and the outlet for being connected to the Brake pipe pressure source, for main reservoir pressure source to be passed through flow
Measurement component is couple to the Brake pipe pressure source.
13. according to the method for claim 12, based on the volume air flow and to the main reservoir pressure source and
The step of measurement result of volume air flow between the Brake pipe pressure source is calibrated includes: when main reservoir pressure
When pressure in source is equal to predetermined amount, to illustrating by the flow measuring components according to the volumes of air stream by the aperture
The signal for measuring the volume air flow provided is calibrated.
14. according to the method for claim 13, wherein the step of carrying out guide to the brake pipe relay valve includes following
Step: based on the brake pipe pressure strength through measuring, balanced reservoir pilot pressure control assembly is operated as target as needed
Pressure is to realize the predetermined grade of Brake pipe pressure.
15. according to the method for claim 14, wherein executing operation in response to the order for being input into operator interface
The step of equilibrium reservoir pilot pressure control assembly is to realize predetermined Brake pipe pressure.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2015/014415 WO2016126243A1 (en) | 2015-02-04 | 2015-02-04 | Automatic calibration of flow measurements in locomotive air brake systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107207002A CN107207002A (en) | 2017-09-26 |
| CN107207002B true CN107207002B (en) | 2019-01-29 |
Family
ID=52469372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580075449.7A Active CN107207002B (en) | 2015-02-04 | 2015-02-04 | Automatic calibration to the flow measurement of locomotive air braking system |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN107207002B (en) |
| AU (1) | AU2015381761B2 (en) |
| BR (1) | BR112017016362B1 (en) |
| CA (1) | CA2975824C (en) |
| WO (1) | WO2016126243A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107150676B (en) * | 2017-07-01 | 2023-03-21 | 西北铁道电子股份有限公司 | Device and method for monitoring braking process of rail car |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5501512A (en) * | 1995-06-27 | 1996-03-26 | Westinghouse Air Brake Company | System and method for automatically calibrating transducers in electro-pneumatic freight brake control systems |
| CN1151367A (en) * | 1995-11-27 | 1997-06-11 | 西屋气刹车公司 | Train brake pipe pressure exhaust control system and regulating valve therefor |
| US5808909A (en) * | 1995-09-15 | 1998-09-15 | Rees; James G. | Electronic brake control valve tester for rail cars and trains |
| CN1944132A (en) * | 2005-09-16 | 2007-04-11 | 纽约气力制动公司 | Electronic equalizing reservoir controller with pneumatic penalty override and reduction limiting |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6619138B2 (en) * | 1999-07-07 | 2003-09-16 | Westinghouse Air Brake Technologies Corporation | Apparatus for dynamically adjusting size of an orifice to increase accuracy in measuring the rate of air flow |
| US7416262B2 (en) * | 2004-06-09 | 2008-08-26 | Wabtec Holding Corp. | Brake system with integrated car load compensating arrangement |
-
2015
- 2015-02-04 AU AU2015381761A patent/AU2015381761B2/en active Active
- 2015-02-04 CN CN201580075449.7A patent/CN107207002B/en active Active
- 2015-02-04 CA CA2975824A patent/CA2975824C/en active Active
- 2015-02-04 BR BR112017016362-4A patent/BR112017016362B1/en active IP Right Grant
- 2015-02-04 WO PCT/US2015/014415 patent/WO2016126243A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5501512A (en) * | 1995-06-27 | 1996-03-26 | Westinghouse Air Brake Company | System and method for automatically calibrating transducers in electro-pneumatic freight brake control systems |
| US5808909A (en) * | 1995-09-15 | 1998-09-15 | Rees; James G. | Electronic brake control valve tester for rail cars and trains |
| CN1151367A (en) * | 1995-11-27 | 1997-06-11 | 西屋气刹车公司 | Train brake pipe pressure exhaust control system and regulating valve therefor |
| CN1944132A (en) * | 2005-09-16 | 2007-04-11 | 纽约气力制动公司 | Electronic equalizing reservoir controller with pneumatic penalty override and reduction limiting |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2015381761B2 (en) | 2017-12-21 |
| BR112017016362A2 (en) | 2018-03-27 |
| BR112017016362B1 (en) | 2022-08-30 |
| CA2975824A1 (en) | 2016-08-11 |
| WO2016126243A1 (en) | 2016-08-11 |
| CA2975824C (en) | 2018-01-09 |
| AU2015381761A1 (en) | 2017-08-24 |
| CN107207002A (en) | 2017-09-26 |
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