CN107628014B - Empty and load brake equipment and air pressure method of adjustment - Google Patents
Empty and load brake equipment and air pressure method of adjustment Download PDFInfo
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- CN107628014B CN107628014B CN201710888907.XA CN201710888907A CN107628014B CN 107628014 B CN107628014 B CN 107628014B CN 201710888907 A CN201710888907 A CN 201710888907A CN 107628014 B CN107628014 B CN 107628014B
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Abstract
The present invention proposes a kind of empty and load brake equipment and air pressure method of adjustment, its exterior is equipped with total wind entrances, gas circuit outlet and exhaust outlet, including empty and load brake regulator, first solenoid valve, second solenoid valve, pressure sensor and electronic control unit, the empty and load brake regulator is equipped with air inlet, gas outlet and pre-control end, the air inlet is connected with total wind entrance, the gas outlet is connected with gas circuit outlet and the pressure sensor is arranged between, first solenoid valve one end is connected with total wind entrance, the first solenoid valve other end is connected to the pre-control end and described second solenoid valve one end, the second solenoid valve other end is communicated with the exhaust outlet, the external atmosphere of exhaust outlet is so that compressed air to be discharged in atmosphere, the pressure sensor, first solenoid valve and second solenoid valve and electronic control unit It is electrically connected.Present invention employs closed-loop control, stability, the accuracy when empty and load braking ensure that.
Description
Technical field
The invention belongs to rail traffic vehicles device field more particularly to a kind of empty and load brake equipment and air pressure adjustment sides
Method.
Background technique
Currently, the load-carrying of vehicle constantly increases to improve conevying efficiency, being self-possessed constantly is reduced, and leads to the bare weight ratio of vehicle
It is gradually increased, therefore the effect of empty and load brake equipment becomes increasingly conspicuous.To guarantee that in the case where high-speed overload, loaded vehicle has
Enough brake force can stop in defined distance, and empty wagons brake force is unlikely to too big, and it is more than viscous for preventing brake force
Put forth effort, causes wheel tread flat, therefore empty and load brake equipment is essential.Existing empty and load brake equipment is adopted more
With opened loop control, i.e. empty and load brake equipment is directly connected to air spring pipeline, but is missed when empty and load brake equipment exists
When poor, it can not be adjusted in time, cause the accuracy for exporting brake pressure signal poor.
Therefore need to design a kind of empty and load brake equipment that can solve above-mentioned technical problem and air pressure method of adjustment.
Summary of the invention
For technical problem of the existing technology, the present invention, which provides one kind, has feedback function, and can adjust in time
The empty and load brake equipment and air pressure method of adjustment of whole error.
The technical solution adopted by the present invention are as follows:
A kind of empty and load brake equipment, its exterior is equipped with total wind entrance, gas circuit outlet and exhaust outlets comprising empty and load
Valve, the first solenoid valve, second solenoid valve, first pressure sensor and electronic control unit, the empty and load brake regulator be equipped with air inlet,
Gas outlet and pre-control port, the air inlet are connected with total wind entrance, and the gas outlet is connected with gas circuit outlet
Logical, first solenoid valve one end is connected with total wind entrance, the first solenoid valve other end and the pre-control end and
Second solenoid valve one end connection, the second solenoid valve other end are communicated with the exhaust outlet, and the exhaust outlet is external big
For gas so that compressed air to be discharged in atmosphere, the first pressure sensor setting exports it in the gas outlet and the gas circuit
Between to measure vehicle valve atmospheric pressure value, the first pressure sensor, first solenoid valve and the second solenoid valve respectively with
The electronic control unit is electrically connected, and the electronic control unit includes being used to join the vehicle valve atmospheric pressure value and deadlight load
Number information be acquired acquisition module, to deadlight load parameter information is scaled in proportion braking needed for pressure preset
The computing module of value, the comparison module and control that the pressure preset of calculating and the vehicle valve atmospheric pressure value are compared
First solenoid valve, second solenoid valve power on/off are to adjust the control module of the vehicle valve atmospheric pressure value.
Preferably, the control module respectively with the acquisition module, the computing module and the comparison module
It is electrically connected so as to collecting vehicle valve atmospheric pressure value and deadlight load parameter information, calculates the required pressure preset of braking and then compare
Vehicle valve atmospheric pressure value and pressure preset size are to control first solenoid valve, second solenoid valve power on/off to adjust vehicle valve gas
Pressure value.
Preferably, the empty and load brake equipment further comprises the second pressure to acquire car body load parameter information
Force snesor, the acquisition module is electrically connected with the first pressure sensor, the second pressure sensor respectively, described
The car body that acquisition module measures the vehicle valve atmospheric pressure value that the first pressure sensor measures and the second pressure sensor
Load parameter information is acquired and is transmitted to the comparison module and is compared.
Preferably, first solenoid valve is equipped with first interface, second interface and third interface, second electromagnetism
Valve is equipped with the 4th interface, the 5th interface and the 6th interface, and the first interface, the setting of the 6th sealing joint, described second connects
Mouth is connected with the 4th interface and the pre-control end, and the third interface is connected with total wind entrance, and the described 5th
Interface is connected for compressed air to be discharged in atmosphere with the exhaust outlet.
Preferably, the comparison module is electrically connected respectively with the acquisition module and the computing module so as to institute
The size of the vehicle valve atmospheric pressure value and the calculated pressure preset of computing module of stating acquisition module acquisition is compared simultaneously
Result is transmitted to the control module.
Preferably, the control module and first solenoid valve, second solenoid valve are electrically connected so as to the control
Module controls first solenoid valve and the second solenoid valve power on/off according to the result that the comparison module is analyzed
And then control the raising and reduction of the vehicle valve atmospheric pressure value.
A kind of air pressure method of adjustment of empty and load brake equipment, it is characterised in that: the following steps are included:
S1: the acquisition module acquires the vehicle valve atmospheric pressure value and the second pressure that the first pressure sensor measures
The deadlight load parameter information that sensor measures, and the vehicle valve atmospheric pressure value is transmitted to the comparison module, by the car body
Load parameter information is transmitted to the computing module；
S2: the computing module converts in proportion to the deadlight load parameter information obtain vehicle braking needed for pressure
Preset value is simultaneously transmitted to the comparison module；
S3: the size of vehicle valve atmospheric pressure value and pressure preset is compared in the comparison module, if vehicle valve air pressure
Value is greater than pressure preset, thens follow the steps S4, if vehicle valve atmospheric pressure value is less than pressure preset, S5 is thened follow the steps, if vehicle valve
Atmospheric pressure value is equal to pressure preset, thens follow the steps S6；
S4: the control module controls first solenoid valve and the second solenoid valve is powered to adjust the empty and load
Valve exhaust and then reduction vehicle valve atmospheric pressure value；
S5: the control module controls first solenoid valve and second solenoid valve power-off to adjust the empty and load
Valve is inflated and then increases vehicle valve atmospheric pressure value；
S6: the control module controls first solenoid valves and second solenoid valve power-off and then the sky
Loaded vehicle valve keeps vehicle valve atmospheric pressure value constant.
Preferably, first solenoid valve and the second solenoid valve are in energized state in step S4, i.e., described
One interface is connected with the second interface, and the third interface closing, the 4th interface is connected with the 5th interface, described
6th interface closes the 5th interface for reaching the second solenoid valve through the pre-control end so as to the gas in the empty and load brake regulator
It is discharged in atmosphere to reduce vehicle valve atmospheric pressure value.
Preferably, first solenoid valve and the second solenoid valve are in off-position in step S5, i.e., described
The first interface of one solenoid valve is closed, and the second interface of first solenoid valve and the third interface of first solenoid valve are led
It is logical, the 4th interface closing of the second solenoid valve, the of the 5th interface of the second solenoid valve and the second solenoid valve
Six interfaces are connected so that the gas of total wind inlet enters the pre-control end pair through the second interface of first solenoid valve
The empty and load brake regulator inflation is to increase vehicle valve atmospheric pressure value.
Preferably, first solenoid valve is in energized state in step S6, the second solenoid valve is in power-off shape
State, i.e., the described first interface are connected with the second interface, third interface closing, the 4th interface closing, and described the
The gas so as to the pre-control end is connected with the 6th interface by first solenoid valve and the second solenoid valve for five interfaces
It is closed, and then keep vehicle valve atmospheric pressure value constant.
Compared with prior art, the advantages and positive effects of the present invention are:
A kind of empty and load brake equipment of the present invention and air pressure method of adjustment, measure empty and load by first pressure sensor
The output pressure and feedback of valve arrive electronic control unit, and electronic control unit controls the first, second solenoid valve by preset judgment
Power on/off realizes boosting, is depressured or remains unchanged, forms closed-loop control, ensure that stability when empty and load braking, accurate
Property.
Detailed description of the invention
Fig. 1 is a kind of gas circuit structure schematic diagram of empty and load brake equipment of the present invention；
Fig. 2 is the structural block diagram of electronic control unit in empty and load brake equipment of the present invention；
Fig. 3 is the flow chart of empty and load air pressure method of adjustment of the present invention.
In the above figure: 1, total wind entrance；2, gas circuit exports；3, exhaust outlet；4, empty and load brake regulator；41, air inlet；42, outlet
Mouthful；43, pre-control end；5, first pressure sensor；6, the first solenoid valve；61, first interface；62, second interface；63, third connects
Mouthful；7, second solenoid valve；71, the 4th interface；72, the 5th interface；73, the 6th interface；8, electronic control unit；81, mould is acquired
Block；82, computing module；83, comparison module；84, control module；9, second pressure sensor.
Specific embodiment
In the following, the present invention is specifically described by illustrative embodiment.It should be appreciated, however, that not into one
In the case where step narration, element, structure and features in an embodiment can also be advantageously incorporated into other embodiments
In.
In the description of the present invention, it should be noted that the instruction such as term "inner", "outside", "upper", "lower", "front", "rear"
Orientation or positional relationship be positional relationship based on the figure, be merely for convenience of description of the present invention and simplification of the description, and
It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
It is not considered as limiting the invention.In addition, term " first ", " second ", " third ", " the 4th ", " the 5th ", " the 6th " are only
For descriptive purposes, it is not understood to indicate or imply relative importance.
As shown in Figure 1, the present invention provides a kind of empty and load brake equipment, its exterior is equipped with total wind entrances 1, gas circuit outlet 2
And exhaust outlet 3, including empty and load brake regulator 4, first pressure sensor 5, the first solenoid valve 6, second solenoid valve 7, electronic control unit 8
And second pressure sensor 9, the empty and load brake regulator 4 are equipped with air inlet 41, gas outlet 42 and pre-control end 43, the air inlet 41 with
Total wind entrance 1 is connected, and total wind entrance 1 is connected with total wind, the gas outlet 42 be connected with gas circuit outlet 2 and
The first pressure sensor 5 is arranged between, and described first solenoid valve, 6 one end is connected with total wind entrance 1, institute
It states 6 other end of the first solenoid valve to be connected with described 7 one end of second solenoid valve and be connected to the pre-control end 43 jointly, described
Two solenoid valves, 7 other end is communicated with the exhaust outlet 3, the external atmosphere of the exhaust outlet 3, so that compressed air is discharged to atmosphere
In, the first pressure sensor 5, the first solenoid valve 6 and second solenoid valve 7 and electronic control unit 8 are electrically connected.
First solenoid valve 6 and the second solenoid valve 7 are two-bit triplet type solenoid valve, and first solenoid valve 6 is set
There are first interface 61, second interface 62, third interface 63, the 61 outside sealed set of first interface, the second interface 62
Be connected with the pre-control end 43, the third interface 63 is connected with total wind entrance 1, when energization the first interface
61 are connected with the second interface 62, and the third interface 63 is closed, when power-off the second interface 62 with the third interface
63 conductings, the first interface 61 are closed.The second solenoid valve 7 is equipped with the 4th interface 71, the 5th interface 72, the 6th interface
73, the 4th interface 71 is interconnected with the second interface 62 and the pre-control end 43, the 5th interface 72 with it is described
Exhaust outlet 3 communicates, so that compressed air is discharged in atmosphere, when energization described in the 4th interface 71 be connected with the 5th interface 72,
6th interface 73 closing, when power-off described in the 5th interface 72 be connected with the 6th interface 73,71 envelope of the 4th interface
It closes.
As shown in Fig. 2, the electronic control unit 8 includes being used to carry out vehicle valve atmospheric pressure value and deadlight load parameter information
The acquisition module 81 of acquisition, the meter the deadlight load parameter information ratiometric conversion to be pressure preset needed for braking
Calculate module 82, the comparison module 83 that the pressure preset of calculating and the vehicle valve atmospheric pressure value are compared and control
First solenoid valve 6,7 power on/off of second solenoid valve are made to adjust the control module 84 of the vehicle valve atmospheric pressure value, the acquisition
Module 81, the computing module 82, the comparison module 83 and the control module 84 are electrically connected with each other.
The acquisition module 81 is electrically connected with the first pressure sensor 5, second pressure sensor 9 respectively, described
The vehicle valve atmospheric pressure value that the first pressure sensor 5 measures is acquired and is transmitted to the comparison module by acquisition module 81
83, the deadlight load parameter information that the second pressure sensor 9 measures is acquired and is transmitted to by the acquisition module 81
The computing module 82, the computing module 82 obtain pressure preset to the progress ratiometric conversion of deadlight load parameter information and will
The pressure preset is transmitted to the comparison module 83, the vehicle valve gas that the comparison module 83 acquires the acquisition module 81
Pressure value and the size of the calculated pressure preset of computing module 82 are compared and result are transmitted to the control
Module 84, the control module 84 are electrically connected with first solenoid valve 6, second solenoid valve 7,84 basis of control module
The comparison module 83 compares the result of analysis to control first solenoid valve 6 and 7 power on/off of second solenoid valve, in turn
The raising and reduction of control pressure.
Referring to Fig. 3, present invention further propose that a kind of empty and load air pressure method of adjustment, is adjusted using empty and load above-mentioned and is filled
It sets, specifically:
S1: acquisition module 81 acquires the vehicle valve atmospheric pressure value and the second pressure that the first pressure sensor 5 measures
The deadlight load parameter information that sensor 9 measures, and the vehicle valve atmospheric pressure value is transmitted to comparison module 83, the car body is carried
Lotus parameter information is transmitted to computing module 82；
S2: computing module 82 carries out ratiometric conversion, pressure needed for obtaining vehicle braking to the deadlight load parameter information
Power preset value is simultaneously transmitted to comparison module 83；
S3: the size of the vehicle valve atmospheric pressure value and the pressure preset is compared in comparison module 83, if vehicle
Valve atmospheric pressure value is greater than pressure preset, thens follow the steps S4, if vehicle valve atmospheric pressure value is less than pressure preset, thens follow the steps S5,
If vehicle valve atmospheric pressure value is equal to pressure preset, S6 is thened follow the steps；
S4: control module 84 controls first solenoid valve 6 and the second solenoid valve 7 is powered, i.e., the described first interface
61 are connected with the second interface 62, and the third interface 63 is closed, and the 4th interface 71 is connected with the 5th interface 72,
6th interface 73 closing reaches the second solenoid valve 7 through the pre-control end 43 so as to the gas in the empty and load brake regulator 4
The 5th interface 72 be discharged in atmosphere to reduce vehicle valve atmospheric pressure value；
S5: control module 84 controls first solenoid valve 6 and the second solenoid valve 7 powers off, i.e., the described first interface
61 closings, the second interface 62 are connected with the third interface 63, the 4th interface 71 closing, the 5th interface 72 with
6th interface 73 conducting enters so as to the gas at total wind entrance 1 through the second interface 62 of first solenoid valve 6
The pre-control end 43 is inflated to increase vehicle valve atmospheric pressure value by the empty and load brake regulator 4；
S6: control module 84 controls that first solenoid valve 6 is powered and the second solenoid valve 7 powers off, i.e., and described the
One interface 61 is connected with the second interface 62, and the third interface 63 is closed, and the 4th interface 71 closing, the described 5th connects
The gas so as to the pre-control end 43 is connected by first solenoid valve 6 and second electromagnetism with the 6th interface 73 in mouth 72
Valve 7 is closed, and then keeps vehicle valve atmospheric pressure value constant.
The working principle of empty and load brake equipment of the present invention is described in detail as follows below:
Empty and load brake equipment to being externally provided with total wind entrance 1, gas circuit outlet 2 and exhaust outlet 3, inside be equipped with empty and load brake regulator 4,
Connection gas circuit between first pressure sensor 5, the first solenoid valve 6, second solenoid valve 7 and electronic control unit 8.Wherein, institute
First pressure sensor 5 is stated for detecting whether the pressure of empty and load brake equipment gas circuit outlet 2 reaches program required value, is realized
The closed-loop control of empty and load brake equipment；First solenoid valve 6 is for controlling total wind entrance 1 and the empty and load brake regulator 4
Pre-control end 43 connection and isolation, the second solenoid valve 7 is used to control the pre-control end 23 of atmosphere and the empty and load brake regulator 4
Connection and isolation.
Vehicle load signal is input to computing module 82, is handled by program, proportionally converses needed for vehicle braking
Pressure preset, and above-mentioned pressure preset is compared with the value of the first pressure sensor 5:
If current vehicle valve atmospheric pressure value is less than the pressure preset after ratiometric conversion, control module 84 will control first electricity
Magnet valve 6 and the second solenoid valve 7 are in off-position, i.e., the first interface 61 is closed, the second interface 62 with it is described
Third interface 63 is connected, and the 4th interface 71 closing, the 5th interface 72 is connected with the 6th interface 73, comes from total wind
Compressed air successively will enter the empty and load brake regulator 4 by the third interface 63 of first solenoid valve 6, second interface 62
Pre-control end 43, so that the pressure of the gas circuit outlet 2 of empty and load brake equipment will rise toward pressure preset, empty and load brake equipment
Into pressure-increasning state.
If current vehicle valve atmospheric pressure value is greater than the pressure preset after ratiometric conversion, control module 84 will control first electricity
Magnet valve 6 and the second solenoid valve 7 are in energized state, i.e., the described first interface 61 is connected with the second interface 62, described
Third interface 63 is closed, and the 4th interface 71 is connected with the 5th interface 72, and the 6th interface 73 closing comes from total wind
Compressed air will not enter the empty and load brake regulator 4 pre-control end 43, the compressed air at the pre-control end 43 of the empty and load brake regulator 4
The 4th interface 71, the 5th interface 72 successively Jing Guo the second solenoid valve 7 is led to the exhaust outlet 3 to be discharged in atmosphere, from
And the pressure of the gas circuit outlet 2 of empty and load brake equipment will decline toward pressure preset, empty and load brake equipment enters decompression shape
State.
If current vehicle valve atmospheric pressure value is equal to the pressure preset after ratiometric conversion, control module 84 will control first electricity
Magnet valve 6 is in energized state, second solenoid valve 7 is in off-position, i.e., the described first interface 61 is led with the second interface 62
Logical, the third interface 63 is closed, and the 4th interface 71 closing, the 5th interface 72 is connected with the 6th interface 73,
Compressed air in the pre-control end 43 of the empty and load brake regulator 4 will be isolated with total wind entrance 1, exhaust outlet 3, thus empty and load tune
The pressure of the gas circuit outlet 2 of engagement positions remains certain value, and empty and load brake equipment enters state of pressure keeping.
If car load increases, current vehicle valve atmospheric pressure value is necessarily made to be less than the pressure preset after ratiometric conversion, it is empty
Loaded vehicle adjustment device will enter inflated condition；Pressure if car load reduces, after front truck valve atmospheric pressure value is greater than ratiometric conversion
Power preset value, empty and load brake equipment will enter exhaust condition；If car load is constant, empty and load brake equipment, which will enter, to be protected
Pressure condition.Therefore, Vehicular system is only needed to be supplied to 8 one load signals of electronic control unit, computing module 82 then can basis
The size of load, pressure preset needed for calculating vehicle braking, and above-mentioned pressure preset and the first pressure are passed
The vehicle valve atmospheric pressure value that sensor 5 measures is compared, and by closed-loop control empty and load brake equipment, realizes brake force and gross combination weight
Between at one-to-one relationship, and then guarantee stability, accuracy when empty and load braking.
Empty and load brake equipment provided by the invention and air pressure method of adjustment are surveyed by the first pressure sensor 5
It obtains the output pressure of the empty and load brake regulator 6 and feeds back and arrive the electronic control unit 8, the electronic control unit 8 passes through predetermined
Judgement controls first solenoid valve 6,7 power on/off of second solenoid valve, realizes boosting, is depressured or remains unchanged, forms closed loop
Control ensure that stability, accuracy when empty and load braking.
Claims (10)
1. a kind of empty and load brake equipment, its exterior is equipped with total wind entrance, gas circuit outlet and exhaust outlets comprising empty and load brake regulator,
It is characterized by: the empty and load brake equipment further comprise the first solenoid valve, second solenoid valve, first pressure sensor and
Electronic control unit, the empty and load brake regulator are equipped with air inlet, gas outlet and pre-control port, the air inlet and total wind entrance
It is connected, the gas outlet is connected with gas circuit outlet, and first solenoid valve one end is connected with total wind entrance,
The first solenoid valve other end is connected to the pre-control end and described second solenoid valve one end, the second solenoid valve other end
It is communicated with the exhaust outlet, the external atmosphere of exhaust outlet is so that compressed air to be discharged in atmosphere, the first pressure sensing
Device setting is between the gas outlet and gas circuit outlet to measure vehicle valve atmospheric pressure value, the first pressure sensor, institute
It states the first solenoid valve and the second solenoid valve to be electrically connected with the electronic control unit respectively, the electronic control unit packet
Include for the vehicle valve atmospheric pressure value and deadlight load parameter information are acquired acquisition module, to by deadlight load parameter
The computing module of pressure preset needed for information is scaled braking in proportion, by the pressure preset of calculating and the vehicle valve gas
The comparison module and control first solenoid valve, second solenoid valve power on/off that pressure value is compared are to adjust the vehicle
The control module of valve atmospheric pressure value.
2. empty and load brake equipment according to claim 1, it is characterised in that: the control module respectively with the acquisition
Module, the computing module and the comparison module are electrically connected so that collecting vehicle valve atmospheric pressure value and deadlight load parameter are believed
Breath calculates the required pressure preset of braking and then compares vehicle valve atmospheric pressure value and pressure preset size to control described first
Solenoid valve, second solenoid valve power on/off are to adjust vehicle valve atmospheric pressure value.
3. empty and load brake equipment according to claim 2, it is characterised in that: the empty and load brake equipment further wraps
The second pressure sensor to acquire car body load parameter information is included, the acquisition module is sensed with the first pressure respectively
Device, the second pressure sensor are electrically connected, the vehicle valve air pressure that the acquisition module measures the first pressure sensor
The deadlight load parameter information that value and the second pressure sensor measure be acquired and be transmitted to the comparison module into
Row compares analysis.
4. empty and load brake equipment according to claim 1, it is characterised in that: first solenoid valve is equipped with first and connects
Mouth, second interface and third interface, the second solenoid valve is equipped with the 4th interface, the 5th interface and the 6th interface, described
First interface, the setting of the 6th sealing joint, the second interface and the fourth interface and the pre-control end be connected, and described the
Three interfaces are connected with total wind entrance, and the 5th interface is connected so that compressed air to be discharged to greatly with the exhaust outlet
In gas.
5. empty and load brake equipment according to claim 2, it is characterised in that: the comparison module respectively with the acquisition
Module and the computing module are electrically connected so that the vehicle valve atmospheric pressure value and computing module that acquire to the acquisition module calculate
The size of pressure preset out is compared and result is transmitted to the control module.
6. empty and load brake equipment according to claim 5, it is characterised in that: the control module and first electromagnetism
Valve, second solenoid valve electric connection are described so that the control module is controlled according to the result that the comparison module is analyzed
First solenoid valve and the second solenoid valve power on/off and then the raising and reduction for controlling the vehicle valve atmospheric pressure value.
7. a kind of air pressure method of adjustment of empty and load brake equipment as claimed in any one of claims 1 to 6, it is characterised in that: packet
Include following steps:
S1: the car body that the vehicle valve atmospheric pressure value and second pressure sensor that acquisition module acquisition first pressure sensor measures measure
Load parameter information, and vehicle valve atmospheric pressure value is transmitted to comparison module, deadlight load parameter information is transmitted to computing module；
S2: computing module converts in proportion to deadlight load parameter information obtain vehicle braking needed for pressure preset and transmitting
To comparison module；
S3: the size of vehicle valve atmospheric pressure value and pressure preset is compared in comparison module, if vehicle valve atmospheric pressure value is greater than pressure
Power preset value, thens follow the steps S4, if vehicle valve atmospheric pressure value is less than pressure preset, S5 is thened follow the steps, if vehicle valve atmospheric pressure value etc.
In pressure preset, S6 is thened follow the steps；
S4: control module controls the first solenoid valve and second solenoid valve is powered to adjust empty and load brake regulator and be vented reduction vehicle valve gas in turn
Pressure value；
S5: control module controls the first solenoid valve and second solenoid valve power-off and inflates raising vehicle valve gas in turn to adjust empty and load brake regulator
Pressure value；
S6: control module controls the first solenoid valves and second solenoid valve power-off and then empty and load brake regulator keeps vehicle valve atmospheric pressure value
It is constant.
8. the air pressure method of adjustment of empty and load brake equipment according to claim 7, it is characterised in that: in step S4, the
One solenoid valve and second solenoid valve are in energized state, i.e. first interface is connected with second interface, and the closing of third interface, the 4th connects
Mouth is connected with the 5th interface, and the closing of the 6th interface reaches the 5th of second solenoid valve through pre-control end so as to the gas in empty and load brake regulator
Interface is discharged in atmosphere to reduce vehicle valve atmospheric pressure value.
9. the air pressure method of adjustment of empty and load brake equipment according to claim 7, it is characterised in that: in step S5, the
One solenoid valve and second solenoid valve are in off-position, i.e. the first interface of the first solenoid valve is closed, and the second of the first solenoid valve
Interface is connected with the third interface of the first solenoid valve, the 4th interface closing of second solenoid valve, the 5th interface of second solenoid valve
It is connected with the 6th interface of second solenoid valve so that the gas of total wind inlet enters pre-control through the second interface of the first solenoid valve
End is inflated to increase vehicle valve atmospheric pressure value by empty and load brake regulator.
10. the air pressure method of adjustment of empty and load brake equipment according to claim 7, it is characterised in that: in step S6, the
One solenoid valve is in energized state, and second solenoid valve is in off-position, i.e. first interface is connected with second interface, third interface
The gas so as to pre-control end is connected with the 6th interface by the first solenoid valve and the second electricity for closing, the closing of the 4th interface, the 5th interface
Magnet valve is closed, and then keeps vehicle valve atmospheric pressure value constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710888907.XA CN107628014B (en) | 2017-09-27 | 2017-09-27 | Empty and load brake equipment and air pressure method of adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710888907.XA CN107628014B (en) | 2017-09-27 | 2017-09-27 | Empty and load brake equipment and air pressure method of adjustment |
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| Publication Number | Publication Date |
|---|---|
| CN107628014A CN107628014A (en) | 2018-01-26 |
| CN107628014B true CN107628014B (en) | 2019-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710888907.XA Active CN107628014B (en) | 2017-09-27 | 2017-09-27 | Empty and load brake equipment and air pressure method of adjustment |
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| CN110987604B (en) * | 2019-12-18 | 2022-02-22 | 太原理工大学 | Air pressure stabilizing system and method for controlling pore water pressure in coal rock mass creep test |
| CN112550253B (en) * | 2020-12-10 | 2021-10-08 | 同济大学 | Freight train empty and heavy vehicle grading adjustment device and adjustment method |
| CN113119930B (en) * | 2021-03-24 | 2022-06-03 | 浙江科力车辆控制系统有限公司 | Braking force adjusting method and device based on electromagnetic valve |
| CN113335244B (en) * | 2021-07-01 | 2022-05-03 | 中车制动系统有限公司 | Device and method for adjusting empty and heavy vehicle valves of railway vehicle and brake control device |
| CN114954388B (en) * | 2022-05-18 | 2023-04-07 | 中车制动系统有限公司 | Emergency braking control system and method |
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| CN104085387A (en) * | 2014-07-11 | 2014-10-08 | 南京浦镇海泰制动设备有限公司 | Output-selectable empty and load adjusting valve |
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| CN2344246Y (en) * | 1998-12-02 | 1999-10-20 | 殷昭荣 | Stepless wagon empty weight vehicle automatic regulating equipment |
| CN2433144Y (en) * | 2000-08-16 | 2001-06-06 | 铁道部科学研究院机车车辆研究所 | Automatic brake equipment for empty and load of railway wagon |
| CN201882108U (en) * | 2010-12-03 | 2011-06-29 | 中国铁道科学研究院机车车辆研究所 | Braking control device for railway vehicle braking system |
| CN201923122U (en) * | 2011-01-14 | 2011-08-10 | 中国铁道科学研究院机车车辆研究所 | Brake control device for rail vehicles |
| CN104085387A (en) * | 2014-07-11 | 2014-10-08 | 南京浦镇海泰制动设备有限公司 | Output-selectable empty and load adjusting valve |
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| CN107628014A (en) | 2018-01-26 |
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