CN108146464B - A kind of rail vehicle braking alleviation fault handling method - Google Patents
A kind of rail vehicle braking alleviation fault handling method Download PDFInfo
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- CN108146464B CN108146464B CN201711387868.1A CN201711387868A CN108146464B CN 108146464 B CN108146464 B CN 108146464B CN 201711387868 A CN201711387868 A CN 201711387868A CN 108146464 B CN108146464 B CN 108146464B
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- braking
- brake
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- pressure
- blast main
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The present invention relates to a kind of rail vehicle brakings to alleviate fault handling method, including blast main, braking excision cock and brake control are in series on the blast main, specifically comprise the following steps: step 1, when vehicle is in relieved state, operation braking excision cock, and force to connect the air pipe line that fills in blast main and brake control, alleviated by filling air pipe line air draft and realizing；Step 2, when vehicle is in on-position, operation braking excision cock, and force to connect the exhaust pipeline in brake control, it is realized and is alleviated by exhaust pipeline air draft.The present invention, in normal operation, is not alleviated in train in case of braking, and driver method rapidly artificially can alleviate braking through this process, checks or wait subsequent rescue in order to which train goes back to library.
Description
Technical field
The present invention relates to rail vehicle braking control technology field, in particular to a kind of rail vehicle braking is alleviated at failure
Reason method.
Background technique
When test run line of the railcar of part vehicle at user scene carries out vehicle type approval test, train system is simulated
Dynamic not alleviate, vehicle braking excision cock carries out pressure alleviation under driver operation guest room seat, and time slack does not delay when will appear once in a while
The case where, for this purpose, through further research, it has been found that, such phenomenon belongs to an intrinsic spy of relay valve in brake control
Property, it not can avoid at present.Therefore, in order to cope with train in normal operation, occur braking and do not alleviate failure, it is desirable to provide is a kind of
Emergency processing method, not influence train rescuing.
Summary of the invention
The present invention is to provide a kind of brake in the generation of train normal operation main dissatisfied the technical issues of determining and does not alleviate failure
When, it can be braked with rapid recovery, guarantee that vehicle can return the rail vehicle braking that library checks or waits for rescue and alleviate at failure
Reason method.
To achieve the above object, the technical scheme is that
A kind of rail vehicle braking alleviation fault handling method, including blast main, are in series with braking on the blast main
Cock and brake control are cut off, is specifically comprised the following steps:
Step 1, when vehicle is in relieved state, operation braking excision cock, and force blast main and control for brake
Air pipe line connection is filled in device, is alleviated by filling air pipe line air draft and realizing；
Step 2, when vehicle is in on-position, operation braking excision cock, and forcing will be in brake control
Exhaust pipeline is connected, and is realized and is alleviated by exhaust pipeline air draft.
Further, the air pipe line that fills includes being connected in turn between blast main and checking cylinder to fill wind-powered electricity generation magnetic by pipeline
Valve and relay valve are forced the air pipe line that fills in blast main and brake control passing through operation in said step 1
Controller handle to " braking " position, which makes to fill wind-powered electricity generation magnet valve, to be obtained electric-opening blast main is connected to realization with the common chamber of relay valve.
Further, described " braking " position is the maximum braking level of controller.
Further, it is pushed into controller handle " to alleviate " position after alleviation.
Further, the exhaust pipeline include the relay valve being connected in turn by pipeline between checking cylinder and blast main and
Air draft solenoid valve is forced to connect the exhaust pipeline in brake control by operation controller hand in the step 2
Handle to " alleviation " position makes the unlatching of air draft solenoid valve power loss that the common chamber of relay valve is connected to realization with air-exhausting duct.
Further, after alleviation, controller handle is pushed into brake initial level.
Further, the arrival end of the brake control is provided with filter.
Further, the brake control includes emergency brake pipe, and the emergency brake pipe includes passing through pipeline
Bare weight valve, emergency braking solenoid valve and the relay valve being connected in turn between blast main and checking cylinder.
In conclusion a kind of rail vehicle braking provided by the invention alleviates fault handling method, normally transported in train
When battalion, do not alleviate in case of braking, driver method rapidly artificially can alleviate braking through this process, in order to train
It goes back to library and checks or wait subsequent rescue.
Detailed description of the invention
Fig. 1 is brake control schematic diagram of gas circuit of the present invention.
As shown in Figure 1, blast main 1, braking excision cock 2, brake control 3, checking cylinder 4 fill wind-powered electricity generation magnet valve 5, arrange
Wind-powered electricity generation magnet valve 6, relay valve 7, air hose 8, air spring 9, bare weight valve 10, emergency braking solenoid valve 11, filter 12, first pressure
Sensor 13, second pressure sensor 14.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing:
As shown in Figure 1, the present invention provides a kind of rail vehicle braking alleviation fault handling method, including blast main 1, total
Braking excision cock 2, brake control 3 and checking cylinder 4 are in series on air hose 1.
Wherein, brake control 3 includes filling wind-powered electricity generation magnet valve 5, air draft solenoid valve 6, relay valve 7.Successively connected by pipeline
Air pipe line is filled in the common chamber formation for filling wind-powered electricity generation magnet valve 5 and relay valve 7 connect between blast main 1 and checking cylinder 4.By pipeline according to
The common chamber and air draft solenoid valve 6 of the secondary relay valve 7 being connected between checking cylinder 4 and blast main 1 form exhaust pipeline, air draft electricity
6 one end of magnet valve connects air-exhausting duct (not indicating in figure), and the other end of air-exhausting duct leads directly to atmosphere.Brake control 3 further includes tight
Anxious brake piping, emergency brake pipe include the bare weight valve 10 being connected in turn by pipeline between blast main 1 and checking cylinder 4,
The urgent chamber of emergency braking solenoid valve 11 and relay valve 7, bare weight valve 10 are connect by pipeline with air spring 9.In control for brake
The arrival end of device 3 is provided with filter 12.In relay valve 7 often with chamber and the pipe that fills wind-powered electricity generation magnet valve 5 and air draft solenoid valve 6 and connect
Road is provided with the first pressure sensor 13 for signal piping wind pressure, connects between air spring 9 and bare weight valve 10
The second pressure sensor 14 for signal piping air pressure is serially connected on pipeline.
As shown in Figure 1, filling wind-powered electricity generation magnet valve 5 electric must fill air pipe line connection, and total wind pressure is via vehicle system in service braking
Dynamic excision cock 2, filter 12, relay valve 7 enter checking cylinder 4, realize braking.
In emergency braking, emergency braking solenoid valve 11 obtains electric emergency brake pipe and connects, and total wind pressure is via vehicle system
Dynamic excision cock 2, filter 12, relay valve 7 enter checking cylinder 4, realize braking.
For relay valve 7, in service braking, pre-control AC2 pressure is controlled by filling wind-powered electricity generation magnet valve 5 and air draft solenoid valve 6
System, AC2 pre-control air chamber pressure are detected by first pressure sensor 13, and have electronic brake control unit to carry out closed loop control
System.When AC2 pre-control air chamber pressure is greater than control deviation lower than AC goal pressure, fills the energization of wind-powered electricity generation magnet valve 5 and open AC2 pre-control gas
Wind access is filled in room, increases AC2 air chamber pressure；When AC2 pre-control air chamber pressure, which is higher than AC goal pressure, is greater than control deviation,
The air draft access of the pre- air control chamber of AC2 is opened in the power-off of air draft solenoid valve 6, reduces AC2 air chamber pressure；When AC2 pre-control air chamber pressure
When with AC goal pressure relatively, that fills the power-off closing pre- air control chamber of AC2 of wind-powered electricity generation magnet valve 5 fills wind access, and air draft solenoid valve 6 is logical
The air draft access of the electrically disconnected pre- air control chamber of AC2, keeps the pre- air control chamber of AC2 basicly stable constant.
BCU input total wind wind regime is disconnected after the pre- governor pressure of AC2 enters state of pressure keeping fills wind since goal pressure is unchanged
Solenoid valve 5 and air draft solenoid valve 6 are all off state, and therefore, the pressure of the pre- air control chamber of AC2 can be basically unchanged, relay valve
Original state of pressure keeping can be kept, brake-cylinder pressure is made also to keep original pressure constant.When AC2 is state of pressure keeping, respectively
Although the practical AC2 pressure of vehicle and the bias of goal pressure, all in AC pressure control deviation, the size of deviation may be endless
It is exactly the same.For the vehicle that AC pressure divergence limits under stress, the very little leakage of AC2 pressure, which will result in, fills the benefit of wind-powered electricity generation magnet valve 5
Air control system, but since the total wind in upstream has emptied, filling the benefit air control system of wind-powered electricity generation magnet valve 5 not only rises AC2 pressure, makes instead
AC2 pressure reduction, the reduction of AC2 pressure further make to fill the opening of wind-powered electricity generation magnet valve 5, and the pre- governor pressure of AC2 is caused to be emptied completely.For
AC pressure divergence is in the vehicle of the pressure divergence upper limit, if AC2 is revealed, also very little, AC pressure are maintained at pressure divergence lower limit
Above time possibility will be very long, during this period of time, does not have and fills wind and air draft control, AC2 pressure can be longer
It keeps being basically unchanged or slowly declining in time.
In emergency braking, if urgent pre- governor pressure AC1 pressure decrease slow, brake-cylinder pressure BC drop to often
Then no longer decline when the pressure value to be matched with pre- governor pressure AC2, will occur at this time brake-cylinder pressure have it is certain become smaller but
It will not alleviate.If urgent pre- governor pressure AC1 pressure decline is quickly, brake-cylinder pressure BC follows decline very fast, on relay valve
Hooking shellfish body valve port cannot close in time, then brake-cylinder pressure BC would fall to the pressure for being less than and commonly using pre- governor pressure AC2 and matching
Force value, then upper hook shellfish will push total air valve seat to open valve port, prepare to supplement difference from total wind pressure, but total wind pressure at this time
Power is already below BC pressure, therefore valve port will be always on, and brake pressure BC also drops to zero, will occur checking cylinder alleviation at this time.
Due to the above-mentioned characteristic of relay valve 7, braking occurs in certain section compartment of train and does not alleviate, driver operation guest room seat
After lower vehicle braking excision cock carries out pressure alleviation, when the situation that time slack does not delay when occurring once in a while, pass through following processing method
Emergent management is carried out, alleviates braking to rapidly artificial, checks or wait subsequent rescue in order to which train goes back to library
Specifically comprise the following steps:
Step 1, if certain vehicle braking occurs and do not alleviate, operates vehicle braking when vehicle is in relieved state at this time
After cutting off cock 2, if braking is still not alleviated, forces to connect the air pipe line that fills in blast main 1 and brake control 3, lead to
Alleviation can be realized in overcharging pipeline air draft.
Specifically:
1, for operation controller handle to " braking " position, " braking " position is the maximum braking level of controller.
At this point, filling wind-powered electricity generation magnet valve 5 obtains electric-opening, blast main 1 is connected to the common chamber of relay valve 7, service braking chamber is pre-
Governor pressure AC2 fills wind-powered electricity generation magnet valve 5, the vehicle braking excision emptying of cock 2 by common, and checking cylinder BC pressure passes through in relay valve 7
Exhaust outlet empty therewith, release of brake.
2, it after alleviation, is pushed into controller handle " to alleviate " position again.
Step 2, when vehicle is in braking application state, after operating certain vehicle braking excision cock 2 at this time, if there is
Braking is not alleviated, then forces to connect the exhaust pipeline in brake control 3, can be realized by exhaust pipeline air draft slow
Solution.
Specifically:
1, controller handle is operated to " alleviation " position.
At this point, 6 power loss of air draft solenoid valve is opened, the common chamber of relay valve 7 is communicated with the atmosphere by air-exhausting duct,
The pre- governor pressure AC2 of service braking chamber is emptied by common air draft solenoid valve 6, and checking cylinder BC pressure passes through relay valve 7
Interior exhaust outlet empties therewith, release of brake.
2, after alleviation, controller handle is pushed into again to brake initial level.
As described above, the plan content in conjunction with given by attached drawing, can derive similar technical solution.But it is all not take off
Content from technical solution of the present invention, according to the technical essence of the invention it is to the above embodiments it is any it is simple modification, etc.
With variation and modification, all of which are still within the scope of the technical scheme of the invention.
Claims (3)
1. a kind of rail vehicle braking alleviates fault handling method, which is characterized in that including blast main, gone here and there on the blast main
It is associated with braking excision cock and brake control, is specifically comprised the following steps:
Step 1 occurs braking and not alleviate when vehicle is in relieved state, after operating vehicle braking excision cock at this time, if
Braking is still not alleviated, then forces to connect the air pipe line that fills in blast main and brake control, real by filling air pipe line air draft
Now alleviate；
Specifically include: maximum braking level " braking " position of operation controller handle to controller fills wind-powered electricity generation magnet valve and obtains electric-opening,
Blast main is connected to the common chamber of relay valve, the pre- governor pressure of service braking chamber by it is common fill wind-powered electricity generation magnet valve, vehicle braking is cut
Except cock empties, brake-cylinder pressure is emptied therewith by the exhaust outlet in relay valve, release of brake；After alleviation, by controller
Handle is pushed into " to alleviate " position again；
Step 2 occurs braking and does not alleviate when vehicle is in braking application state after operation braking excision cock, then force by
Exhaust pipeline in brake control is connected, and is realized and is alleviated by exhaust pipeline air draft；
Specifically include: operation controller handle to " alleviation " position, air draft solenoid valve power loss open, the common chamber of relay valve are passed through
Air-exhausting duct is communicated with the atmosphere, and the pre- governor pressure of service braking chamber is emptied by common air draft solenoid valve, and brake-cylinder pressure passes through relaying
Exhaust outlet in valve empties therewith, release of brake；After alleviation, controller handle is pushed into again to brake initial level.
2. rail vehicle braking according to claim 1 alleviates fault handling method, it is characterised in that: controlled in the braking
The arrival end of device processed is provided with filter.
3. rail vehicle braking according to claim 1 alleviates fault handling method, it is characterised in that: the control for brake
Device includes emergency brake pipe, and the emergency brake pipe includes being connected in turn between blast main and checking cylinder by pipeline
Bare weight valve, emergency braking solenoid valve and relay valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711387868.1A CN108146464B (en) | 2017-12-20 | 2017-12-20 | A kind of rail vehicle braking alleviation fault handling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711387868.1A CN108146464B (en) | 2017-12-20 | 2017-12-20 | A kind of rail vehicle braking alleviation fault handling method |
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| Publication Number | Publication Date |
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| CN108146464A CN108146464A (en) | 2018-06-12 |
| CN108146464B true CN108146464B (en) | 2019-07-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111907501B (en) * | 2019-05-08 | 2022-04-29 | 株洲中车时代电气股份有限公司 | Train air circulation brake control method, device and computer readable storage medium |
| CN111976672B (en) * | 2020-08-19 | 2022-06-14 | 中车株洲电力机车有限公司 | Dynamic vehicle control method and system under fault of railway vehicle brake mitigation |
| CN111976687B (en) * | 2020-08-26 | 2022-09-13 | 中车制动系统有限公司 | Rail vehicle brake cylinder pressure control method and system |
| CN112277919B (en) * | 2020-11-03 | 2022-04-05 | 中车青岛四方机车车辆股份有限公司 | Control method and device for preventing brake from being unreeased and whole train |
| CN113514262B (en) * | 2021-07-15 | 2024-05-24 | 中车青岛四方机车车辆股份有限公司 | Braking function test method, system, storage medium and equipment |
| CN113804469B (en) * | 2021-09-30 | 2024-01-12 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle braking state judging system, method, storage medium and equipment |
| CN114932930B (en) * | 2022-05-31 | 2024-03-22 | 中车青岛四方机车车辆股份有限公司 | Brake unit fault positioning method, system and train |
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| JPH06183329A (en) * | 1992-12-18 | 1994-07-05 | Nabco Ltd | Brake control device for rolling stock |
| EP2338749A1 (en) * | 2008-10-21 | 2011-06-29 | Mitsubishi Electric Corporation | Railcar brake control device |
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| CN108146464A (en) | 2018-06-12 |
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