CN109305156A - EPB valve assembly and EPB electronic brake system with internal respiration structure - Google Patents
EPB valve assembly and EPB electronic brake system with internal respiration structure Download PDFInfo
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- CN109305156A CN109305156A CN201811158770.3A CN201811158770A CN109305156A CN 109305156 A CN109305156 A CN 109305156A CN 201811158770 A CN201811158770 A CN 201811158770A CN 109305156 A CN109305156 A CN 109305156A
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- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 28
- 238000003780 insertion Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/025—Electrically controlled valves
- B60T15/027—Electrically controlled valves in pneumatic systems
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The present invention relates to electronic brake system fields, disclose EPB valve assembly and EPB electronic brake system with internal respiration structure, it includes valve body, air inlet (11) and gas outlet are provided on valve body, the first valve chamber (310) for installing gas control two-position three-way valve (31) is offered on valve body and the channel N in valve body for exhaust is set, the first spool (311) are installed in first valve chamber (310), channel K is offered on the right side of first valve chamber (310), channel K is connected to channel N, when first spool (311) is moved to channel K, compressed air between first spool (311) and channel K enters channel N discharge by channel K.Integration degree is high for the valve body, and pipeline arrangement is convenient, while internal respiration can prevent silt from blocking.
Description
Technical field
The present invention relates to automobile electronic parking braking system fields, more particularly to EPB valve with internal respiration structure is total
At and EPB electronic brake system.
Background technique
EPB:Electrical Park Breake, electronic brake system are a kind of to put by conventional hand control valve and fastly
Valve is changed to electronic control unit (NCU) and the EPB valve assembly with internal respiration structure, and combines other systems and logic.With structure
The vehicle safety control system of the advantages that compact, multiple functional.Traditional conventional parking brake is by hand control valve, connects driver's cabin pipe
Road and parking quick release valve have the disadvantage in that and 1) sail since traditional parking system driver's cabin domestic demand fills hand control valve and welcomes the emperor
Room pipeline, space utilization rate are lower；2) it and has a single function, can only realize parking function；3) pipeline arrangement is compared with installation
It is cumbersome, it repairs also more troublesome.
And automobile is in use, and silt, the dust on road surface are easy to stick on valve body, if arranged using outgoing call suction
The case where device of air, the time generates blocking external respiration valve later for a long time, to influence the EPB valve assembly with internal respiration structure just
It often works, influences braking performance of vehicle under serious conditions.
Summary of the invention
To overcome the above deficiencies, the invention provides a kind of EPB valve assemblies and EPB with internal respiration structure
Electronic brake system, there is the EPB valve assembly of internal respiration structure to have conventional parking, uphill starting auxiliary, emergency system for this
The functions such as dynamic, automatic parking function, anti-forgetting parking, low-voltage variation；Remove hand control valve, connect driving cab pipeline and parking with putting fastly
Valve；It improves travel safety, improve the operating comfort of driver.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals:
EPB valve assembly with internal respiration structure is provided with air inlet and air outlet on valve body, offers and be used on valve body
First valve chamber of gas control two-position three-way valve and the channel N for exhaust are installed, the first spool, the first valve are installed in the first valve chamber
Channel K is offered on the right side of chamber, channel K is connected to channel N, when the first spool is moved to channel K, the first spool and channel
Compressed air between K enters channel N discharge by channel K.Exhaust process is carried out by the way of internal respiration, to ensure that
The cleannes of entire valve body, have ensured the service life of valve body.
Preferably, EPB valve body includes upper valve body and lower valve body, the second valve chamber is offered in lower valve body, in the second valve chamber
Relay piston is installed, the upper surface of relay piston and the second valve chamber inner wall surround C chamber, and the first spool is to far from the direction channel K
Compressed air during movement in the first valve chamber is discharged through C chamber from channel K.To form complete internal respiration structure.
Preferably, further including two-bit triplet solenoid valve, the first valve chamber includes first piston chamber and spool chamber, first piston
The left end of chamber, which is equipped with, takes gas connector, and spool chamber is divided into E chamber, F chamber and X chamber, and E chamber is connected to F chamber by the control of the first spool
And disconnection, the side wall of E chamber offer the channel for being respectively communicated with air inlet and two-bit triplet solenoid valve, two-bit triplet solenoid valve and C
Chamber, the connection of first piston chamber, the connection between two-bit triplet solenoid valve control C chamber, E chamber and first piston chamber；C chamber and N channel
Connection is controlled by setting vacuum solenoid valve and is disconnected；Standby pressure electromagnetic valve is set between F chamber and C chamber, and standby pressure electromagnetic valve controls F chamber
With C chamber be connected to and disconnection.It is controlled accurately between each valve body, and the connection of each valve body is connected by built-in channel
It connects, thus keep each process more stable, it is relatively reliable.And it is convenient for later period examination and maintenance, while facilitating each solenoid valve
Control to being connected between each cavity.
Preferably, the first spring is arranged in the right side of spool chamber, first piston is intracavitary to be provided with first piston, and first is living
Plug, which moves right, can drive the first spool to move right the first spring of compression, and first piston takes gas connector and first piston chamber side
D chamber is surrounded between wall, D chamber is connected to two-bit triplet solenoid valve, and the section of first piston chamber is greater than the section of spool chamber and even
The place of connecing forms limited step.Limited step limits the stroke of first piston, so that limiting the movement travel of the first spool makes E
Chamber is connected to F chamber stabilization.
Preferably, passing through setting circlip and ventilation set between first piston chamber, E chamber, F chamber and X chamber adjacent chamber
It separates, under original state, spool and retaining ring sealing cooperate, E chamber and the partition of F chamber；Under air-suction state, the first spool is moved to right, E chamber and
F chamber passes through the gap area between retaining ring and the first spool.
Preferably, first piston includes piston only and the insertion rod that is plugged in the first spool, opened up in insertion rod
There is auxiliary gas off-take, is provided with channel Y in the middle part of the first spool, valve core chamber inner sidewall is provided with discouraged close to one end of piston only
Mouthful, leakage port is connected to the intracorporal space of upper valve, and leakage port, spool chamber, auxiliary gas off-take, channel Y, channel K, channel N are successively
Connection forms bleed passage.Prevent valve body gas leakage from damaging to upper cap assembly, the compressed air of leakage is arranged by bleed passage
Out.
Preferably, two-bit triplet solenoid valve includes L chamber, O chamber and J chamber, two-bit triplet solenoid valves state, L chamber and O
Chamber connection, two-bit triplet solenoid valve off-position, O chamber are connected to J chamber；J chamber is connected to D chamber, and O chamber is connected to C chamber, E chamber and L chamber
Connection；Standby pressure electromagnetic valve includes P chamber and Q chamber, and F chamber be connected to P chamber, and Q chamber is connected to C chamber, for pressure electromagnetic valve spool control P chamber and
The connection of Q chamber；Vacuum solenoid valve includes G chamber, and G chamber is connected to C chamber, and 10 spool of vacuum solenoid valve control G chamber is connected to channel N.
Preferably, be additionally provided with interconnecting piece in valve body, interconnecting piece is by the second valve of the installation cavity of upper valve body and lower valve body
Chamber separates, and the upper end of upper valve body is sealed with cap assembly, and EPB electronic control unit, two-bit triplet electromagnetism are provided in upper valve body
Valve, vacuum solenoid valve, standby pressure electromagnetic valve are mounted in upper valve body, and the channel by opening up on interconnecting piece is connected to C chamber, the
The bottom of two valve chambers is provided with valve assembly and exhaust guide holder, is vented on guide holder and is provided with exhaust outlet, in the second valve chamber also
It is provided with valve rod, relay piston sealing is set on valve rod, and the middle part of valve rod is arranged in channel N, and exhaust outlet is connected to channel N；
The lower section of relay piston is arranged in valve assembly, and the second valve chamber includes below C chamber and relay piston above relay piston
B chamber, B chamber is connected to gas outlet, and air inlet is communicated with A chamber, A chamber and B chamber and is connected to and disconnects by valve assembly control.
Preferably, further including return spring, return spring one end and exhaust guide holder are contradicted, the other end and valve assembly
Conflict disconnection A chamber is connected to B chamber, is provided with check valve in the channel of air inlet connection A chamber, is vented on guide holder and was provided with
Filter filter core and muffler ASSY.
Preferably, taking the hand stop valve being provided in gas connector for compulsory commutation parking braking, hand stop valve
It is connected to D chamber；It further include control mouth, control mouth is connected to C chamber by gas circuit.
The present invention also provides a kind of EPB electronic brake systems, including above-mentioned integrated form EPB valve assembly, outlet
Mouth includes the first gas outlet, the second gas outlet, third gas outlet, the 4th gas outlet, and electronic brake system further includes gas storage
Cylinder, spring brake cylinder parking chamber, trailer module, air inlet is connected with gas receiver, and the first gas outlet, the second gas outlet are and bullet
Spring checking cylinder parking chamber is connected, and the 4th gas outlet is connected with trailer module air inlet, and control mouth is connected with air brake valve,
Third gas outlet is connected with the control mouth of trailer module.
The present invention has significant technical effect: invention removes hand control valve, connecing due to using above technical scheme
Driving cab pipeline and parking quick release valve provide a kind of EPB valve assembly with internal respiration structure, this has internal respiration structure
EPB valve assembly have the function of conventional parking, uphill starting auxiliary, emergency brake, automatic parking, anti-forgetting parking, low pressure protect
The functions such as shield；Remove hand control valve, connect driving cab pipeline and parking quick release valve；It improves travel safety, improve driver
Operating comfort.And entire valve body long service life, easy to maintain, occupy little space the advantages that integration degree is high.
And the invention patent will remove the breather valve on valve body, and internal respiration type exhausting duct is arranged in valve inner.It is interior
Type of respiration exhaust duct can effectively stop the particulate matters such as silt, dust to enter in valve body, avoid the breather valve being mounted on valve body
The case where resulting in blockage and failing under bad working environments；Relative to by exhaust apparatus (breather valve), valve outer wall installation is set
Situation can effectively reduce cost, convenient for safeguarding；Simultaneously by exhaust duct setting when piston and stem side can solve piston motion
Piston generates the case where back pressure.And be able to solve when leak air in valve body or other in the case of lead to air pressure liter in shell
Height influences upper valve body and the problem of upper valve body piece safety, the intracorporal high pressure gas of upper valve can within the mode that is vented carry out
Exhaust.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the present embodiment.
Fig. 2 is the left view structural representation of the present embodiment.
Fig. 3 is the overlooking structure diagram of the present embodiment.
Fig. 4 is that cuing open for a-a shows structural schematic diagram along Fig. 2.
Fig. 5 is that cuing open for b-b shows structural schematic diagram along Fig. 2.
Fig. 6 is that cuing open for d-d shows structural schematic diagram along Fig. 3.
Fig. 7 is that cuing open for c-c shows structural schematic diagram along Fig. 2.
Fig. 8 is the partial enlarged view of Fig. 4.
Fig. 9 is the air circuit connection figure of EPB electronic brake system.
The toponym that each number designation is referred in attached drawing is as follows: cap assembly on 1,2, EPB electronic control unit, 3, on
Valve body, 4, control mouth, 5, take gas connector, 6, first piston, 7, lower valve body, 8, special-shaped seal ring, 9, check valve, 10, decompression electricity
Magnet valve, 11, air inlet, 12, valve rod, 13, valve assembly, 14, return spring, 15, exhaust guide holder, 16, muffler ASSY,
17, standby pressure electromagnetic valve, 18, two-bit triplet solenoid valve, 19, relay piston, 20, control mouth connector, the 21, first gas outlet, 22, the
Two gas outlets, 24, reserved opening, 25 third gas outlets, the 12/26, the 4th gas outlet.27, diaphragm, 28, seven core plugs, 29, exhaust
Mouth, 31-gas control two-position three-way valves, the 311-the first spool, 312-spool chambers, 313-first piston chambers, 32-insertion rods,
612-auxiliary gas off-takes, 613-leakage ports, 61-piston onlies, the 314-the first spring.
Specific embodiment
Present invention is further described in detail with embodiment with reference to the accompanying drawing.State technology in present embodiment
Letter in feature only plays the role of marked differential technical characteristic, should not be construed as the restriction to the shape of technical characteristic.
Embodiment 1
As shown in Figures 1 to 8, there is the EPB valve assembly of internal respiration structure, be provided with air inlet 11 and outlet on valve body
Mouthful, the first valve chamber 310 for installing gas control two-position three-way valve 31 is offered on valve body and is arranged in valve body for exhaust
Channel N is equipped with the first spool 311 in the first valve chamber 310, offers channel K on the right side of the first valve chamber 310, channel K with
Channel N connection, when the first spool 311 is moved to channel K, the compressed air between the first spool 311 and channel K passes through channel K
It is discharged into channel N, EPB valve body includes upper valve body 3 and lower valve body 7, and the second valve chamber 90, the second valve chamber are offered in lower valve body 7
Relay piston 19 is installed in 90, the upper surface of relay piston 19 and 90 inner wall of the second valve chamber surround C chamber, the first spool 311 to
Compressed air during far from the movement of the direction channel K in the first valve chamber 310 is discharged through C chamber from channel K, further includes two three
Three-way electromagnetic valve 18, the first valve chamber 310 include first piston chamber 313 and spool chamber 312, and the left end of first piston chamber 313 is equipped with
Gas connector 5 is taken, spool chamber 312 is divided into E chamber, F chamber and X chamber, and E chamber is connected to and is disconnected by the control of the first spool 311 with F chamber, E
The side wall of chamber offers the channel for being respectively communicated with air inlet 11 and two-bit triplet solenoid valve 18, two-bit triplet solenoid valve 18 and C chamber,
First piston chamber 313 is connected to, and two-bit triplet solenoid valve 18 controls the connection between C chamber, E chamber and first piston chamber 313；C chamber and N
Channel controls connection by setting vacuum solenoid valve 10 and disconnects；Standby pressure electromagnetic valve 17, standby piezoelectricity magnetic are set between F chamber and C chamber
Valve 17 control F chamber and C chamber be connected to and disconnection.
The first spring 314 is arranged in the right side of spool chamber 312, and the setting of the first spring is intracavitary in X, and one end is contradicted in spool chamber
On 312 right end, the other end contradicts the right end in the first spool 31.First piston 6 is set in first piston chamber 313, and first is living
Plug 6, which moves right, can drive the first spool 311 to move right the first spring 314 of compression, and first piston 6 takes gas connector 5 and first
D chamber is surrounded between 313 side wall of plunger shaft, D chamber is connected to two-bit triplet solenoid valve 18, and the section of first piston chamber 313 is greater than valve
The section of core cavity 312 and junction formed limited step, between first piston chamber 313, E chamber, F chamber and X chamber adjacent chamber lead to
Cross setting circlip 315 and ventilation set 316 separate, under original state, spool and the sealing of retaining ring 315 cooperate, E chamber and F chamber every
It is disconnected；Under air-suction state, the first spool 311 is moved to right, and E chamber and F chamber pass through the gap area between retaining ring 315 and the first spool 311.
First piston 6 includes piston only 61 and the insertion rod 62 being plugged in the first spool 311, opens up in insertion rod 62
There is auxiliary gas off-take 621, is provided with channel Y in the middle part of the first spool 311,312 inner sidewall of valve core chamber is close to the one of piston only 61
End is provided with leakage port 613, and leakage port 613 is connected to the space in upper valve body 3, when the compressed air for having leakage in upper valve body 3
When, compressed gas in upper valve body 3 is by leakage port successively through spool chamber 312, auxiliary gas off-take 612, channel Y, channel K, logical
Road N is discharged from exhaust outlet 29.Wherein, channel Y, channel K, spool chamber 312 and first piston chamber 313 are coaxially set.
Two-bit triplet solenoid valve 18 includes L chamber, O chamber and J chamber, when two-bit triplet solenoid valve 18 be in energized state, L chamber with
The connection of O chamber, two-bit triplet solenoid valve 18 are in off-position, and O chamber is connected to J chamber；J chamber is with D chamber by setting on interconnecting piece 330
Channel connection is set, O chamber is connected to C chamber by opening up channel on interconnecting piece 330, and E chamber is with L chamber by opening on interconnecting piece 330
If channel is connected to；Standby pressure electromagnetic valve 17 includes P chamber and Q chamber, and F chamber is connected to P chamber, and Q chamber is with C chamber by opening on interconnecting piece 330
If channel is connected to, the connection of the standby control of 17 spool of pressure electromagnetic valve P chamber and Q chamber；Vacuum solenoid valve 10 includes G chamber, and G chamber and C pass through
Channel lumens connection is opened up on interconnecting piece 330,10 spool of vacuum solenoid valve control G chamber is connected to channel N.It is additionally provided in valve body
Interconnecting piece 330, interconnecting piece 330 and upper valve body 3 are integrally formed in the present embodiment, and it is close that abnormity is arranged between lower valve body 7 and upper valve body 3
Seal 8.Interconnecting piece 330 separates the second valve chamber 90 of the installation cavity of upper valve body 3 and lower valve body 7, and the upper end of upper valve body 3 is sealed with
Upper cap assembly 1, is provided with EPB electronic control unit 2 in upper valve body 3, and in the present embodiment, EPB electronic control unit 2 is integrated in
On cap assembly 1.Two-bit triplet solenoid valve 18, vacuum solenoid valve 10, standby pressure electromagnetic valve 17 are mounted in upper valve body 3, and by
The channel opened up on interconnecting piece 330 is connected to C chamber, and the bottom of the second valve chamber 90 is provided with valve assembly 13 and exhaust guide holder
15, it is vented on guide holder 15 and is provided with exhaust outlet, valve rod 12 is additionally provided in the second valve chamber 90, the sealing of relay piston 19 is set in
On valve rod 12, the middle part of valve rod 12 is arranged in channel N, and exhaust outlet is connected to channel N；Valve assembly 13 is arranged in relay piston 19
Lower section, the second valve chamber 90 includes the B chamber positioned at 19 lower section of C chamber and relay piston of the top of relay piston 19, relay piston 19
Moving downward opening valve assembly 13 is connected to A chamber with B chamber, and B chamber is connected to gas outlet, and gas outlet is connected to each brake chamber
Room.Air inlet 11 is communicated with A chamber, A chamber and B chamber and is connected to and disconnects by the control of valve assembly 13.Wherein, EPB electronic control is single
Member 2 is electrically connected with vacuum solenoid valve 10, standby pressure electromagnetic valve 17 and two-bit triplet solenoid valve 18.
It further include control mouth 4, control mouth 4 is connected to C chamber by gas circuit；Valve rod 12, relay piston are provided in valve chamber 90
19 are socketed on valve rod 12, and guide sleeve 121 is additionally provided between relay piston 19 and valve rod 12, and guide sleeve 121 extends to exhaust
Mouth 29.N channel runs through the middle part of valve rod 12, and valve rod 12 is that relay piston 19 provides guiding role, further includes return spring 14, returns
Position 14 one end of spring and exhaust guide holder 15 contradict, and the other end and valve assembly 13 contradict the connection for disconnecting A chamber and B chamber.When C chamber
When air-suction state, relay piston 19 is moved down, and is contradicted the spring force for overcoming return spring 14 simultaneously on valve assembly 13, is opened valve
Door switch 13, A chamber are connected to B chamber.
Take the hand stop valve 50 being provided in gas connector 5 for compulsory commutation parking braking, hand stop valve 50 and D chamber
Connection, shut-off valve 50 include second spring 510 and the second spool 511, and second spring 510 pushes the second spool 511 to make shut-off valve
In off state.First spool 511 includes hand push end push rod 512, offers on push rod 512 and forces leakage port 513, promotion pushes away
Bar 512, D intracavitary compressed air are discharged from pressure leakage port 513.
In the present embodiment, during installation, standby pressure electromagnetic valve 17, two-bit triplet solenoid valve 18 and vacuum solenoid valve 10 are from upper valve
The opening of body 3 carries out placement installation, and 90 bottom of valve chamber is hatch frame, is sealed by setting exhaust guide holder 15
It closes, relay piston 19, valve assembly 13 are installed from the lower section of valve chamber 90.
In the present embodiment, the first valve chamber 310 is provided on the side wall of interconnecting piece 330.When the first 311 original state of spool,
It is sealed with circlip 315,311 lateral surface of the first spool is provided with the notch of annular, and after movement, notch, which is fallen in, separates E chamber and F
In the circlip of chamber, E chamber is connected to F chamber by the axis hole in the middle part of circlip.First piston 6 drives the control of the first spool 311
E chamber processed is connected to or disconnects with F chamber.
Air inlet 11 is connected in the channel of A chamber and is provided with check valve 9, is vented and is provided with filter core on guide holder 15 and disappears
Sound device assembly 16.The partition A chamber of check valve 9 is connected to E chamber.
Wherein in the present embodiment, gas outlet include the first gas outlet, the second gas outlet, third gas outlet, the 4th gas outlet,
The left side of lower valve body 7 is arranged in air inlet 11, the first gas outlet, control mouth 4；The second gas outlet is provided on the right side of lower valve body 7；Under
Third gas outlet, the 4th gas outlet are provided on front side of valve body 7；Reserved opening is provided on rear side of lower valve body 7.The control mouth 4 and gas
Brake valve is connected.Each gas outlet is connected to B chamber.
It is hereafter that typically several working conditions are described to this valve body assembly, should knows, this valve body assembly
Several use states are not limited only to, as long as the function of being considered as this valve body assembly that this valve body assembly can be realized is special
Point.
Driving states:
10 no power of vacuum solenoid valve, standby pressure electromagnetic valve 17 are powered, power off after 18 energization 1s of two-bit triplet solenoid valve, compress
Air enters from 1 mouthful and divides two-way: all the way, opening check valve 9 and enters A chamber；L is entered via channel again by channel to E chamber all the way
Chamber, three XV of dynamic iron core assembly by electromagnetic force overcomes pressure in two-bit triplet solenoid valve 18 when two-bit triplet 18 energized state of solenoid valve
The effect of contracting spring force moves to three XV of static iron core assembly；Compressed air enters O chamber from channel L, via channel enter C chamber into
Row inflation, electromagnetic force is removed in power-off after 18 energization 1s of two-position three-way valve, and movable valve plug XV returns to initial position, disconnects L chamber and O chamber
Connection, O chamber is connected to J chamber at this time, and C intracavitary compressed air is back to O chamber, then enters D chamber through J chamber, pushes first piston 6
It moves right, while the first spool 31 being driven to move right, wherein first piston 6 moves right plunger shaft 312 and spool chamber
When at 312 transition shoulder, stop pushing, at this point, E chamber is connected to F chamber, the air that air inlet 11 enters E chamber is directly entered F
Chamber, then through F chamber to P chamber, at this time for the power-off of pressure electromagnetic valve 17, dynamic iron core assembly Ⅸ is opened by the effect return of Ⅻ power of spring
Valve port, compressed air reach C chamber from P chamber to Q chamber.Relay piston 19 moves down under the action of compressed air, overcomes return
The pre-jacking force of spring 14 opens valve assembly 13, and the compressed air in A chamber enters B chamber by the valve assembly 13 opened at this time,
Then the compressed air of B chamber enters respective springs checking cylinder parking chamber by each gas outlet, releases parking braking, into driving shape
State.
Parked state:
Purpose is, the compressed air in each spring brake cylinder is passed through the EPB valve assembly with internal respiration structure
Exhaust outlet discharge.
At this point, the air inlet of cutting air inlet 11, is powered for pressure electromagnetic valve 17 and cuts off the compressed air for leading to C chamber, two three
Three-way electromagnetic valve 18 powers off, and the first spool 31 moves downward under the action of the first spring 314, D intracavitary compressed air through J chamber into
Enter O chamber, then C chamber is entered by O chamber, since vacuum solenoid valve 10 is powered at this time, G chamber is connected to channel N, C intracavitary compressed air
Enter N channel through G chamber, is most discharged afterwards through exhaust outlet 29.
Driving states under anti-overlay model: the state is under automatically controlled control mode failures even state alternatively, forcing under the state of staying
Release park mode.Standby pressure electromagnetic valve 17, vacuum solenoid valve 10, the equal no power of two-bit triplet solenoid valve 18, compressed air is from 11
Mouth enters valve chamber A；After depressing brake pedal, 4 mouthfuls of compressed airs of control mouth reach C chamber by channel.Relay piston 19 is being pressed
It is moved down under the action of contracting air, compressed spring 14 is overcome to push up valve assembly 13.The compressed air in A chamber is by opening at this time
Valve assembly enter B chamber.Enter respective springs checking cylinder parking chamber by each gas outlet, parking braking is released, into driving
State.
Embodiment 2
As shown in figure 9, the present embodiment provides a kind of EPB electronic brake systems, including the integrated form in embodiment 1
EPB valve assembly, electronic brake system further include gas receiver 80, spring brake cylinder parking chamber 81, trailer module 82, air inlet
11 are connected with gas receiver 80, and the first gas outlet 21, the second gas outlet 22 are connected with spring brake cylinder parking chamber 81, and the 4th
Gas outlet 26 is connected with 82 air inlet of trailer module, and control mouth 4 is connected with air brake valve 4, third gas outlet 25 and trailer
The control mouth of module 82 is connected.
In short, the foregoing is merely presently preferred embodiments of the present invention, it is all according to equalization made by scope of the present invention patent
Variation and modification, shall all be covered by the patent of the invention.
Claims (10)
1. having the EPB valve assembly of internal respiration structure, air inlet (11) and gas outlet are provided on valve body, it is characterised in that: valve
The first valve chamber (310) for installing gas control two-position three-way valve (31) is offered on body and is arranged in valve body for the logical of exhaust
Road N, the first valve chamber (310) is interior to be equipped with the first spool (311), is offered channel K on the right side of the first valve chamber (310), is led to
Road K is connected to channel N, compressed air when the first spool (311) is moved to channel K, between the first spool (311) and channel K
Enter channel N discharge by channel K.
2. the EPB valve assembly according to claim 1 with internal respiration structure, it is characterised in that: EPB valve body includes upper valve
Body (3) and lower valve body (7), lower valve body (7) is interior to be offered the second valve chamber (90), is equipped with relay piston in the second valve chamber (90)
(19), the upper surface of relay piston (19) and the second valve chamber (90) inner wall surround C chamber, and the first spool (311) is to far from the channel side K
Compressed air into the first valve chamber (310) during movement is discharged through C chamber from channel K.
3. the EPB valve assembly according to claim 2 with internal respiration structure, it is characterised in that: further include two-bit triplet
Solenoid valve (18), the first valve chamber (310) include first piston chamber (313) and spool chamber (312), a left side for first piston chamber (313)
End, which is equipped with, to be taken gas connector (5), and spool chamber (312) is divided into E chamber, F chamber and X chamber, and E chamber and F chamber are controlled by the first spool (311)
It system connection and disconnecting, the side wall of E chamber offers the channel for being respectively communicated with air inlet (11) and two-bit triplet solenoid valve (18), and two
Three-way magnetic valve (18) is connected to C chamber, first piston chamber (313), and it is living that two-bit triplet solenoid valve (18) controls C chamber, E chamber and first
Fill in the connection between chamber (313)；C chamber is controlled by setting vacuum solenoid valve (10) with N channel and is connected to and disconnects；F chamber and C chamber it
Between be arranged standby pressure electromagnetic valve (17), standby pressure electromagnetic valve (17) control F chamber and C chamber be connected to and disconnection.
4. the EPB valve assembly according to claim 3 with internal respiration structure, it is characterised in that: the right side of spool chamber (312)
The first spring (314) are arranged in end face, first piston (6) are arranged in first piston chamber (313), first piston (6) moves right can
The first spool (311) is driven to move right compression the first spring (314), first piston (6) takes gas connector (5) and first piston
D chamber is surrounded between chamber (313) side wall, D chamber is connected to two-bit triplet solenoid valve (18), and the section of first piston chamber (313) is greater than
The section of spool chamber (312) and junction formed limited step.
5. the EPB valve assembly according to claim 3 or 4 with internal respiration structure, it is characterised in that: first piston chamber
(313), it is separated between E chamber, F chamber and X chamber adjacent chamber by setting circlip (315) and ventilation set (316), original state
Under, spool and retaining ring (315) sealing cooperate, E chamber and the partition of F chamber；Under air-suction state, the first spool (311) is moved to right, E chamber and F chamber
Pass through the gap area between retaining ring (315) and the first spool (311).
6. the EPB valve assembly according to claim 4 with internal respiration structure, it is characterised in that: first piston (6) includes
Piston only (61) and the insertion rod (32) being plugged in the first spool (311), insertion rod offer auxiliary gas off-take on (32)
(612), it is provided with channel Y in the middle part of the first spool (311), valve core chamber inner sidewall is provided with close to one end of piston only (61) and lets out
Port (613), leakage port (613) are connected to the space in upper valve body (3), leakage port (613), spool chamber (312), auxiliary outlet
Road (612), channel Y, channel K, channel N are sequentially communicated to form bleed passage.
7. the EPB valve assembly according to claim 3 with internal respiration structure, it is characterised in that: two-bit triplet solenoid valve
It (18) include L chamber, O chamber and J chamber, when two-bit triplet solenoid valve (18) is in energized state, L chamber is connected to O chamber, two-bit triplet electricity
Magnet valve (18) is in off-position, and O chamber is connected to J chamber；J chamber is connected to D chamber, and O chamber is connected to C chamber, and E chamber is connected to L chamber；Standby pressure
Solenoid valve (17) includes P chamber and Q chamber, and F chamber is connected to P chamber, and Q chamber is connected to C chamber, standby pressure electromagnetic valve (17) spool control P chamber and Q
The connection of chamber；Vacuum solenoid valve (10) includes G chamber, and G chamber is connected to C chamber, and (10) 10 spool of vacuum solenoid valve controls G chamber and channel
N connection.
8. the EPB valve assembly according to claim 7 with internal respiration structure, it is characterised in that: be additionally provided in valve body
Interconnecting piece (330), interconnecting piece (330) separate the second valve chamber (90) of the installation cavity of upper valve body (3) and lower valve body (7), upper valve
The upper end of body (3) is sealed with cap assembly (1), is provided with EPB electronic control unit (2), two-bit triplet electromagnetism in upper valve body (3)
Valve (18), vacuum solenoid valve (10), standby pressure electromagnetic valve (17) are mounted in upper valve body (3), and by opening on interconnecting piece (330)
If channel be connected to C chamber, the bottom of the second valve chamber (90) be provided with valve assembly (13) and exhaust guide holder (15), exhaust is led
It is provided with exhaust outlet on seat (15), is additionally provided with valve rod (12) in the second valve chamber (90), relay piston (19) sealing is set in
On valve rod (12), channel N is arranged at the middle part of valve rod (12), and exhaust outlet is connected to channel N；Valve assembly (13) is arranged in servo
The lower section of piston (19), the second valve chamber (90) include the B below the C chamber and relay piston (19) above relay piston (19)
Chamber, B chamber are connected to gas outlet, and air inlet (11) is communicated with A chamber, A chamber and B chamber and passes through valve assembly (13) control even on and off
It opens.
9. the EPB valve assembly according to claim 8 with internal respiration structure, it is characterised in that: air inlet (11) is connected to A
It is provided with check valve (9) in the channel of chamber, takes the manual shutoff being provided in gas connector (5) for compulsory commutation parking braking
Valve, hand stop valve are connected to D chamber；It further include control mouth (4), control mouth (4) is connected to C chamber by gas circuit.
10. a kind of EPB electronic brake system, it is characterised in that: integrated including any one described in claim 1~9
Formula EPB valve assembly, gas outlet include the first gas outlet (21), the second gas outlet (22), third gas outlet (25), the 4th gas outlet
(26), electronic brake system further includes gas receiver (80), spring brake cylinder parking chamber (81), trailer module (82), air inlet
Mouthful (11) are connected with gas receiver (80), the first gas outlet (21), the second gas outlet (22) with spring brake cylinder parking chamber
(81) it is connected, the 4th gas outlet (26) is connected with trailer module (82) air inlet, control mouth (4) and air brake valve (4) phase
Connection, third gas outlet (25) are connected with the control mouth of trailer module (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811158770.3A CN109305156B (en) | 2018-09-30 | 2018-09-30 | EPB valve assembly with internal respiration structure and electronic parking brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811158770.3A CN109305156B (en) | 2018-09-30 | 2018-09-30 | EPB valve assembly with internal respiration structure and electronic parking brake system |
Publications (2)
| Publication Number | Publication Date |
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| CN109305156A true CN109305156A (en) | 2019-02-05 |
| CN109305156B CN109305156B (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811158770.3A Active CN109305156B (en) | 2018-09-30 | 2018-09-30 | EPB valve assembly with internal respiration structure and electronic parking brake system |
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| Country | Link |
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| CN (1) | CN109305156B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853111A (en) * | 2020-07-17 | 2020-10-30 | 中车青岛四方车辆研究所有限公司 | Brake cylinder |
| CN114802159A (en) * | 2022-05-13 | 2022-07-29 | 中车齐齐哈尔车辆有限公司 | Emergency valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201494433U (en) * | 2009-09-27 | 2010-06-02 | 蒋伟荣 | Piston shaft of internal respiration brake chamber |
| CN202091411U (en) * | 2011-07-11 | 2011-12-28 | 宜宾三江机械有限责任公司 | Energy-storage piston type spring braking suction and exhaust structure device in air chamber |
| CN205113318U (en) * | 2015-08-26 | 2016-03-30 | 瑞立集团瑞安汽车零部件有限公司 | Exhaust brake valve with internal respiration structure |
| CN108099888A (en) * | 2017-12-22 | 2018-06-01 | 易孝威 | A kind of brake main valve for adapting to the different convertible gas circuits of road conditions |
| CN207673761U (en) * | 2017-12-27 | 2018-07-31 | 嘉兴盛鼎机械有限公司 | A kind of improved type brake air chamber internal respiration device |
| CN209381977U (en) * | 2018-09-30 | 2019-09-13 | 浙江万安科技股份有限公司 | EPB valve assembly and EPB electronic brake system with internal respiration structure |
-
2018
- 2018-09-30 CN CN201811158770.3A patent/CN109305156B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201494433U (en) * | 2009-09-27 | 2010-06-02 | 蒋伟荣 | Piston shaft of internal respiration brake chamber |
| CN202091411U (en) * | 2011-07-11 | 2011-12-28 | 宜宾三江机械有限责任公司 | Energy-storage piston type spring braking suction and exhaust structure device in air chamber |
| CN205113318U (en) * | 2015-08-26 | 2016-03-30 | 瑞立集团瑞安汽车零部件有限公司 | Exhaust brake valve with internal respiration structure |
| CN108099888A (en) * | 2017-12-22 | 2018-06-01 | 易孝威 | A kind of brake main valve for adapting to the different convertible gas circuits of road conditions |
| CN207673761U (en) * | 2017-12-27 | 2018-07-31 | 嘉兴盛鼎机械有限公司 | A kind of improved type brake air chamber internal respiration device |
| CN209381977U (en) * | 2018-09-30 | 2019-09-13 | 浙江万安科技股份有限公司 | EPB valve assembly and EPB electronic brake system with internal respiration structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853111A (en) * | 2020-07-17 | 2020-10-30 | 中车青岛四方车辆研究所有限公司 | Brake cylinder |
| CN111853111B (en) * | 2020-07-17 | 2021-09-03 | 中车青岛四方车辆研究所有限公司 | Brake cylinder |
| CN114802159A (en) * | 2022-05-13 | 2022-07-29 | 中车齐齐哈尔车辆有限公司 | Emergency valve |
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|---|---|
| CN109305156B (en) | 2024-05-14 |
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