CN106476786A - The fault judgment method of city rail vehicle air supply system - Google Patents
The fault judgment method of city rail vehicle air supply system Download PDFInfo
- Publication number
- CN106476786A CN106476786A CN201611014087.3A CN201611014087A CN106476786A CN 106476786 A CN106476786 A CN 106476786A CN 201611014087 A CN201611014087 A CN 201611014087A CN 106476786 A CN106476786 A CN 106476786A
- Authority
- CN
- China
- Prior art keywords
- drying tower
- air
- status signal
- supply system
- air compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B60T17/002—Air treatment devices
- B60T17/004—Draining and drying devices
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Drying Of Gases (AREA)
Abstract
The invention discloses a kind of fault judgment method of city rail vehicle air supply system, air dryer is Double-Tower Structure, including drying tower A and drying tower B, pressure switch is respectively arranged with drying tower A and drying tower B, pressure switch is used for detecting the air pressure in drying tower, first judge whether air compressor is malfunction, during fault-free, judge the malfunction of air dryer again, using the method, after air compressor starts, 10s can judge whether break down, can accurately judge whether air dryer breaks down in 120s after air compressor startup, the working condition of direct detection drying tower, and breakdown judge logic is rigorous, therefore the degree of accuracy is high.
Description
Technical field
The present invention relates to city rail vehicle Pneumatic brake systems field, and in particular to a kind of fault of city rail vehicle air supply system
Determination methods.
Background technology
Most of city rail vehicle adopts Pneumatic brake systems, air supply system be for Pneumatic brake systems provide clean,
The equipment of dry compressed air, is mainly made up of air compressor and the big part of air dryer two.Air compressor is by sky
After air pressure is reduced to the pressure of 9bar, then the process through air dryer, make compressed air relative humidity be reduced to less than 35%,
Then send into Pneumatic brake systems to use for which.Wherein air dryer is double-tower type structure, and compressed air is in a drying tower
Inside it is dried, while carrying out regeneration process in another compressed air for drying reflux in tower to drier.In drier
Electronic timer control two towers drying and regeneration conversion.
Air compressor then can not provide compressed air for Pneumatic brake systems in the event of fault, and city rail vehicle will lose
Brake force is gone, affects traffic safety., in the event of fault, causing the drying/regeneration function of double tower to be changed can not for air dryer
Carry out, the relative humidity of the compressed air that air supply system is discharged will be unsatisfactory for requirement, such as city rail vehicle in this case for a long time
Operation, Pneumatic brake systems can be damaged because of condensed liquid water, affect traffic safety.Therefore, fast and accurately judge air
The fault of compressor and air dryer is necessary.
Judge indirectly whether air compressor breaks down by air-filled time.Air supply system work when capacity be
Certain, by the maximum blast consumption of the intact city rail vehicle of one row of estimation, extrapolate the most long air-filled time of air supply system.Such as
The working time of fruit air supply system is beyond the most long air-filled time of estimation, then it is assumed that air compressor breaks down.
The existing method for judging air compressor machine fault has the disadvantages that：
1) poor in timeliness, the most long air-filled time of city rail vehicle generally 15 to 20 minutes or so, is to avoid wrong report as far as possible
Also, just to can quote after at least needing 18 to 25 minutes therefore, after air supply system breaks down plus the surplus of 3 to 5 minutes
Fault, seriously delayed, affect traffic safety.
2) rate of false alarm is high, needs some events using the equipment of compressed air in brakes, AIRMATIC Dual Control etc.
During barrier, the blast consumption of city rail vehicle can increase, and extend the working time of air supply system, cause to report fault by mistake.
3) cannot judge whether air dryer breaks down.
Content of the invention
The present invention provides a kind of fault judgment method of city rail vehicle air supply system, does not change existing air supply system as far as possible
Design, is reduced plus hardware device as far as possible, tight design error failure decision logic, quick, accurately, directly detect air
Compressor and the fault of air dryer.
The technical solution adopted in the present invention is the fault judgment method of city rail vehicle air supply system, and air dryer is double
Tower structure, including drying tower A and drying tower B, is respectively arranged with pressure switch on drying tower A and drying tower B, and pressure switch is used
Air pressure in detection drying tower, each pressure switch exports 2 kinds of status signals, is drying tower status signal a and drying
Tower status signal b, when signal is for high level, represents drying tower respectively in reproduction operation state and dries working condition；
The fault judgment method of city rail vehicle air supply system is comprised the following steps：The first step, whether judge air compressor
Fault, when while when meeting following 2 conditions, air compressor is malfunction,
1) air compressor 380V power supply is powered normally；
2), after air compressor run signal high level continues 10s, " the drying tower status signal a " of two pressure switches is same
When for high level or two pressure switches " drying tower status signal b " while being low level；
Second step, when air compressor is for non-faulting state, judges whether air dryer is fault,
When any one in following condition is met, air dryer is malfunction,
1) arbitrary pressure switch " drying tower status signal b " is low level for high level or " drying tower status signal a "
Duration more than 110s,
2) two pressure switches " drying tower status signal b " are while for high level or " drying tower status signal a " while be
The low level duration is more than 50s.
Described drying tower A is identical with drying tower B structure, is used to drying and the regeneration of compressed air, its dry and again
Raw alternation.
The invention has the beneficial effects as follows：1) after air compressor starts, 10s can judge whether break down, existing skill
Art is needed 20 minutes or so；2) can accurately judge in the 120s after air compressor starts whether air dryer occurs event
Barrier, prior art cannot judge air dryer fault；3) working condition of direct detection drying tower, and breakdown judge logic
Rigorous, therefore the degree of accuracy is high.
Description of the drawings
Fig. 1 is prior art air supply system composition schematic diagram.
Fig. 2 is air supply system structure chart of the present invention.
Fig. 3 is air supply system control loop circuit theory diagrams of the present invention.
In figure is marked：A- air compressor, b- flexible pipe, c/f- safety valve, d- air dryer, e- check valve, g- are vented
Mouthful, h- pressure switch.
Specific embodiment
It is described further to 3 pairs of inventions of accompanying drawing in conjunction with accompanying drawing 1, as shown in figure 1, the structure of air supply system is, empty
Connected by flexible pipe between air compressor a and air dryer d, arrange on air compressor a and air dryer d branch road
There is safety valve c, after air dryer d, check valve e and safety valve f is provided with the branch road of exhaust outlet.As shown in Fig. 2
The present invention is each pressure switch h for installing a setting valve for 2.7bar on the drying tower A and drying tower B of air dryer d,
Air pressure in direct detection drying tower.Drying tower A is identical with drying tower B structure, all carry out the drying to compressed air and
Reproduction operation, dries and regenerates alternately, and about 60s is alternately once.
The control loop of air supply system is as shown in Figure 3.Air compressor contactor (CMC) electric after, air compressor a is opened
Dynamic, " compressor operation signal " is high level, and being also turned on drier control power supply makes timer start timing, is dried tower
Drying/regeneration conversion.When drying tower is dried work, its internal air pressure is higher than 2.7bar, pressure switch h contact 1,
3 connect, and 1,2 disconnect, and " drying tower status signal a " is low level, and " drying tower status signal b " is high level；Drying tower is carried out
During reproduction operation, its internal pressure is less than 2.7bar, and pressure switch h contact 1,2 is connected, and 1,3 disconnect, " drying tower status signal
A " is high level, and " drying tower status signal b " is low level.
Using the air pressure in pressure switch h direct detection drying tower, the work of drying tower can be fast and accurately judged
Make state, so as to judge whether air compressor and air dryer d break down.
Air compressor a and air dryer d breakdown judge logic as follows：The set condition of air compressor a fault is (same
When meet)：
Air compressor 380V power supply is powered normally；
After " compressor operation signal " high level continues 10s (value can adjust), two pressure switches h " drying is tower-like
State signal a " is while be high level (or " the drying tower status signal b " of two pressure switches h is while be low level).
Under the premise of air compressor a is trouble-free, then the judgement of air dryer d fault is carried out, such as air compressor a
Fault, then do not carry out the breakdown judge of air dryer d.
The set condition (either condition satisfaction) of air dryer d fault：
Arbitrary pressure switch h " drying tower status signal b " is high level (or " drying tower status signal a " is low level)
Duration was more than 110 seconds (value can adjust)；
Two pressure switches h " drying tower status signal b " are while (or " drying tower status signal a " is while be for high level
Low level) duration more than 50 seconds (value can adjust).
Claims (2)
1. the fault judgment method of city rail vehicle air supply system, the air dryer that air supply system is used are Double-Tower Structure, including
Drying tower A and drying tower B, it is characterised in that：Set-pressure is respectively arranged with drying tower A and drying tower B for 2.7bar's
Pressure switch, pressure switch are used for detecting the air pressure in drying tower that each pressure switch to export 2 kinds of status signals, is dry
Dry tower status signal a and drying tower status signal b, when signal is for high level, represents drying tower respectively in reproduction operation shape
State and dry working condition；
The fault judgment method of city rail vehicle air supply system is comprised the following steps：The first step, judge air compressor whether fault,
When while when meeting following 2 conditions, air compressor is malfunction,
1) air compressor 380V power supply is powered normally；
2), after air compressor run signal high level continues 10s, " the drying tower status signal a " of two pressure switches is while be
" the drying tower status signal b " of high level or two pressure switches is while be low level；
Second step, when air compressor is for non-faulting state, judges whether air dryer is fault,
When any one in following condition is met, air dryer is malfunction,
1) arbitrary pressure switch " drying tower status signal b " is low level lasting for high level or " drying tower status signal a "
Time more than 110s,
2) two pressure switches " drying tower status signal b " are while for high level or " drying tower status signal a " while be low electricity
The flat duration is more than 50s.
2. the fault judgment method of city rail vehicle air supply system according to claim 1, it is characterised in that：Described drying
Tower A is identical with drying tower B structure, is used to drying and the regeneration of compressed air, and which dries and regeneration alternation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611014087.3A CN106476786B (en) | 2016-11-18 | 2016-11-18 | The fault judgment method of city rail vehicle air supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611014087.3A CN106476786B (en) | 2016-11-18 | 2016-11-18 | The fault judgment method of city rail vehicle air supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106476786A true CN106476786A (en) | 2017-03-08 |
| CN106476786B CN106476786B (en) | 2019-03-01 |
Family
ID=58272383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611014087.3A Active CN106476786B (en) | 2016-11-18 | 2016-11-18 | The fault judgment method of city rail vehicle air supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106476786B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108082169A (en) * | 2017-11-21 | 2018-05-29 | 瑞立集团瑞安汽车零部件有限公司 | Double-tower dryer controller, vehicle air braking system and vehicle |
| CN110686503A (en) * | 2019-09-20 | 2020-01-14 | 浙江盾安轨道交通设备有限公司 | Air supply device line inspection system |
| CN114895619A (en) * | 2022-05-07 | 2022-08-12 | 中国第一汽车股份有限公司 | Drying machine and fault self-diagnosis system and control method thereof |
| CN114987425A (en) * | 2022-07-21 | 2022-09-02 | 克诺尔车辆设备(苏州)有限公司 | Dryer unit fault diagnosis method and diagnosis system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201900009897A1 (en) * | 2019-06-24 | 2020-12-24 | Faiveley Transport Italia Spa | Procedure for monitoring a compressor of a railway braking system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005224768A (en) * | 2004-02-16 | 2005-08-25 | Kobe Steel Ltd | Air compressing apparatus |
| CN102606457A (en) * | 2011-12-23 | 2012-07-25 | 中国北车集团大连机车车辆有限公司 | Auxiliary air source control system and method for electric locomotive |
| CN105492105A (en) * | 2013-08-30 | 2016-04-13 | 克诺尔轨道车辆系统有限公司 | Method and device for the regeneration of a two-chamber air dryer |
| WO2016089390A1 (en) * | 2014-12-03 | 2016-06-09 | New York Air Brake, LLC | Air dryer system for a locomotive with optimized purge air control |
| CN105822531A (en) * | 2016-05-06 | 2016-08-03 | 清华大学 | On-off control method for electric braking air compressor system by improving combined dryer |
-
2016
- 2016-11-18 CN CN201611014087.3A patent/CN106476786B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005224768A (en) * | 2004-02-16 | 2005-08-25 | Kobe Steel Ltd | Air compressing apparatus |
| CN102606457A (en) * | 2011-12-23 | 2012-07-25 | 中国北车集团大连机车车辆有限公司 | Auxiliary air source control system and method for electric locomotive |
| CN105492105A (en) * | 2013-08-30 | 2016-04-13 | 克诺尔轨道车辆系统有限公司 | Method and device for the regeneration of a two-chamber air dryer |
| WO2016089390A1 (en) * | 2014-12-03 | 2016-06-09 | New York Air Brake, LLC | Air dryer system for a locomotive with optimized purge air control |
| CN105822531A (en) * | 2016-05-06 | 2016-08-03 | 清华大学 | On-off control method for electric braking air compressor system by improving combined dryer |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108082169A (en) * | 2017-11-21 | 2018-05-29 | 瑞立集团瑞安汽车零部件有限公司 | Double-tower dryer controller, vehicle air braking system and vehicle |
| CN110686503A (en) * | 2019-09-20 | 2020-01-14 | 浙江盾安轨道交通设备有限公司 | Air supply device line inspection system |
| CN110686503B (en) * | 2019-09-20 | 2021-02-26 | 浙江盾安轨道交通设备有限公司 | Air supply device line inspection system |
| CN114895619A (en) * | 2022-05-07 | 2022-08-12 | 中国第一汽车股份有限公司 | Drying machine and fault self-diagnosis system and control method thereof |
| CN114987425A (en) * | 2022-07-21 | 2022-09-02 | 克诺尔车辆设备(苏州)有限公司 | Dryer unit fault diagnosis method and diagnosis system |
| CN114987425B (en) * | 2022-07-21 | 2023-12-19 | 克诺尔车辆设备(苏州)有限公司 | Dryer unit fault diagnosis method and diagnosis system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106476786B (en) | 2019-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106476786A (en) | The fault judgment method of city rail vehicle air supply system | |
| CN205744391U (en) | A kind of pure electric vehicle control system of air compressor | |
| CN109878485A (en) | Electric car service brake force aid system and its control strategy and method for diagnosing faults | |
| CN104216307B (en) | Home electricity distribution control system and method | |
| CN105381565B (en) | Fire supply system intelligent inspection system and method | |
| CN103120576A (en) | Water draining control and detection circuit of dish-washing machine, dish-washing machine and water draining and detecting method thereof | |
| CN102044718A (en) | Power lithium iron phosphate battery pack management system for electric automobiles and working method of system | |
| CN108501926A (en) | Pure electric coach braking energy storing device and its working method | |
| CN106641941A (en) | Fault detection and wireless transmission circuit structure for street lamp | |
| CN204705867U (en) | A kind of primary, spare device intelligence converter | |
| CN207875616U (en) | A kind of air-pressure brake air supply system | |
| CN106829709B (en) | Single rope steel wire rope of hoist released rope detecting device | |
| CN104037736B (en) | Fault detection and protection device of lithium ion power supply system | |
| CN204502738U (en) | A kind of micro-heat regenerative adsorption dryer | |
| CN203224749U (en) | Monitoring device used for air supplying unit of urban transit rail train | |
| CN106476646A (en) | Electric automobile energy managing device | |
| CN110767947A (en) | Energy storage battery based on thin film pressure node array and state discrimination method thereof | |
| CN211335956U (en) | Electric air compressor start-stop system and new energy vehicle thereof | |
| CN202869689U (en) | Double-temperature-zone single probe capable of automatically identifying and correcting error | |
| CN206171232U (en) | Electric automobile energy management device | |
| CN109586368A (en) | Energy-storage system starter, starting method and energy-storage system | |
| CN201281817Y (en) | Distributed locale controller based on LonWorks locale bus technology | |
| CN107024915B (en) | A kind of power system controller board faults detection system and detection method | |
| CN208630407U (en) | A kind of new type auto neutral-section passing system onboard control device | |
| CN104133132B (en) | A kind of IGBT driving malfunctions detection and diagnostic system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190820 Address after: No. 28-25 Development Road, Shenyang Economic and Technological Development Zone, Liaoning Province Co-patentee after: DALIAN LOCOMOTIVE AND ROLLING STOCK CO., LTD. CNR GROUP Patentee after: Shenyang China Rail Transit Equipment Co., Ltd. Address before: 116022 Shahekou, Liaoning, China No. 51 The Strip Patentee before: DALIAN LOCOMOTIVE AND ROLLING STOCK CO., LTD. CNR GROUP |
|
| TR01 | Transfer of patent right |