CN103072562B - Pneumatic type integrated electronic parking brake valve with emergency operation - Google Patents
Pneumatic type integrated electronic parking brake valve with emergency operation Download PDFInfo
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- CN103072562B CN103072562B CN201310025335.4A CN201310025335A CN103072562B CN 103072562 B CN103072562 B CN 103072562B CN 201310025335 A CN201310025335 A CN 201310025335A CN 103072562 B CN103072562 B CN 103072562B
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Abstract
The invention discloses a pneumatic type integrated electronic parking brake valve with emergency operation. The pneumatic type integrated electronic parking brake valve comprises a main valve, a first guide valve and a second guide valve, wherein the main valve is provided with an exhaust hole communicated with atmosphere, an inflation hole communicated with an air channel of an air cylinder side, and an air vent communicated with an air channel of a parking brake air chamber side. The pneumatic type integrated electronic parking brake valve also comprises an emergency brake mechanism and an emergency brake relief mechanism, wherein one end of the emergency brake mechanism is connected with a first valve core in the first guide valve, the other end of the emergency brake mechanism is connected with an emergency brake pull ring in a driver cab through a stay wire, one end of the emergency brake relief mechanism is connected with a second valve core in the second guide valve, and the other end of the emergency brake relief mechanism is connected with an emergency brake relief pull ring in the driver cab through a stay wire. The pneumatic type integrated electronic parking brake valve can be used in a pneumatic parking brake device, can be operated in the driver cab in emergency when a pneumatic type electronic parking system fails, and realizes safe and reliable parking brake or brake relief.
Description
Technical field
The invention belongs to brake device for car technical field, particularly there is the vapour-pressure type integrated electronic braking valve for vehicle of emergency operation when a kind of braking during standstill.
Background technology
At present, the manual pneumatic holding brake device of medium-heavy automobile, " break brake " principles that adopt, by the hand braking exhaust of braking during standstill air chamber, the generation braking during standstill of making more.For realizing braking during standstill and removing braking during standstill, conventionally adopt solenoid directional control valve to complete intake and exhaust operation.Conventional two-bit triplet electromagnetic valve is generally single automatically controlled (being unicoil), is divided into two kinds of closed type and open types.The operating principle of closed type two-bit triplet solenoid directional control valve is: to control coil energising, gas circuit is connected; Once coil power-off, gas circuit will disconnect immediately.The operating principle of open type two-bit triplet solenoid directional control valve is: to control coil energising, gas circuit disconnects; Once coil power-off, gas circuit will demand working.No matter closed type or open type solenoid directional control valve, the on off mode that maintain gas circuit all needs to continue energising, and control coil is continued to energising, will greatly shorten the service life of coil.
The two electric control electromagnetic change-over valves of current two-bit triplet on the market can given power-off again after direct action coil electricity 1s, still can maintain the on-state of gas circuit, and till lasting till reverse action coil electricity, this be equivalent to " self-locking ".Based on this characteristic, can shorten the current"on"time of coil, reduce the cal val of coil, in the service life of extension coil, adopt in addition " self-locking " principle, can also prevent in electromagnetic valve work process because cable bad causes parking function abnormal.
Chinese patent application " air-pressure type electronic emergency brake system and braking method " (application number: 201010238129.8, open day: on November 10th, 2010) a kind of air-pressure type electronic holding brake device and braking method disclosed, the air-pressure type electronic parking valve that this air-pressure type electronic holding brake device comprises comprises a two-bit triplet solenoid directional control valve, receive manual mode switch signal by Parking Brake, judge whether to implement parking or remove braking during standstill, thereby give the coil electricity of two-bit triplet solenoid directional control valve, realize intake and exhaust operation, complete and remove braking during standstill or braking during standstill.Described air-pressure type electronic parking valve comprises solenoid directional control valve, check valve, priority valve, the C mouth of air-pressure type electronic parking valve is connected with solenoid directional control valve, solenoid directional control valve is connected with the control mouth of priority valve, the A mouth of air-pressure type electronic parking valve is connected with the admission port of priority valve, the air extractor duct of priority valve is connected with the B mouth of air-pressure type electronic parking valve again, check valve is connected with solenoid directional control valve two ends, and the airintake direction of check valve is contrary with the airintake direction of solenoid directional control valve.Though the two-bit triplet solenoid directional control valve that this cover air-pressure type electronic holding brake device comprises can complete braking during standstill or remove the basic operation of parking, but still there are the following problems:
1, this solenoid directional control valve need just can maintain intake and exhaust operations in lasting energising situation, removes braking during standstill or braking during standstill thereby complete, and coil continues energising and easily burns and cause electromagnetic valve to lose efficacy.
2, owing to having cancelled hand braking handle in operator's compartment, if emergency brake system lost efficacy, for example, due to faults such as storage battery electricity shortage, electromagnetic valve hot-wire coil burn, in Vehicle Driving Cycle process, cannot carry out braking during standstill, this will reduce the safety in utilization of vehicle.
Summary of the invention
The object of the present invention is to provide a kind of vapour-pressure type integrated electronic braking valve for vehicle with emergency operation, in the time that air-pressure type electronic emergency brake system lost efficacy, can, in operator's compartment emergency operation, realize safe and reliable braking during standstill or releasing.
The technical solution that realizes the object of the invention is: a kind of vapour-pressure type integrated electronic braking valve for vehicle with emergency operation, comprise main valve, the first pilot valve, the second pilot valve, described main valve has the exhausr port communicating with atmosphere respectively, the inflation inlet communicating with air receiver, the relief port communicating with braking during standstill air chamber, in described main valve, be provided with by its evolution and can make respectively exhausr port and relief port conducting or make inflation inlet and the main valve plug of relief port conducting, described the first pilot valve is provided with the gas circuit communicating with main valve, also be provided with the braking admission port communicating with air receiver side gas circuit and the braking exhausr port communicating with atmosphere, in described the first pilot valve, be also provided with and can make its evolution by braking during standstill end-coil power on/off, the first spool that makes respectively to brake admission port and main valve conducting or make to brake exhausr port and main valve conducting, described the second pilot valve is provided with the gas circuit communicating with main valve, also be provided with the braking releasing exhausr port that the braking communicating with air receiver side gas circuit is removed admission port and communicated with atmosphere, in the second pilot valve, be also provided with and can make its evolution by removing parking end-coil power on/off, make respectively braking remove admission port and main valve conducting or make braking remove the second spool of exhausr port and main valve conducting, this valve also comprises that one end is connected with the first spool in the first pilot valve, the emergency brake mechanism that the other end is connected with the emergency brake draw ring in operator's compartment by bracing wire and one end are connected with the second spool in the second pilot valve, the other end removes with the emergency brake in operator's compartment the emergency brake cancel system that draw ring is connected by bracing wire.
The present invention compared with prior art, its remarkable advantage:
1, safe and reliable: vapour-pressure type integrated electronic braking valve for vehicle of the present invention has emergency mechanism, can there is electricity shortage at storage battery, or there is electrical accident in electronic brake system itself, when causing carrying out braking during standstill or removing braking during standstill, realize braking during standstill or remove braking during standstill, safe and reliable braking during standstill or releasing braking during standstill by chaufeur drawing braking during standstill (or removing braking during standstill) stay thimble in operator's compartment;
2, long service life: the present invention adopts the two-bit triplet double control electromagnetic change-over valve with " self-locking " function; power-off after direct action coil electricity 1s can given; till still keeping gas circuit on-state and lasting till reverse action coil electricity; can protect the current"on"time that significantly shortens coil; make coil not fragile, extend the service life of electromagnetic valve.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Brief description of the drawings
Fig. 1 is the braking during standstill schematic diagram that the present invention has the vapour-pressure type integrated electronic braking valve for vehicle of emergency operation.
Fig. 2 is the releasing braking during standstill schematic diagram that the present invention has the vapour-pressure type integrated electronic braking valve for vehicle of emergency operation.
Fig. 3 is the block diagram of Fig. 1, Tu2Zhong emergency brake mechanism 4.
Fig. 4 is the birds-eye view of emergency mechanism shown in Fig. 3.
Fig. 5 is the left view of emergency mechanism shown in Fig. 3.
In figure, 1 emergency brake draw ring, draw ring, 3,7 bracing wires are removed in 2 emergency brakes, 4 emergency brake mechanisms, 41 90 ° of hook torsion springs, 42 bolts, 43 first nuts, 44 adapter sleeves, 45 second nuts, 46 bracing wire positioning caps, 47 frameworks, 48 plectrums, 49 screws, 5 vapour-pressure type integrated electronic parking valves, 50 main valves, 51 first pilot valves, 52 second pilot valves, 53 first spools, 54 second spools, 55 main valve plugs, 6 emergency brake cancel systems.
Detailed description of the invention
As Fig. 1, shown in Fig. 2, the present invention has the vapour-pressure type integrated electronic braking valve for vehicle of emergency operation, comprise main valve 50, the first pilot valve 51, the second pilot valve 52, described main valve 50 has the exhausr port A communicating with atmosphere respectively, the inflation inlet B communicating with air receiver, the relief port C communicating with braking during standstill air chamber, in described main valve 50, be provided with by its evolution and can make respectively exhausr port A and relief port C conducting or make inflation inlet B and the main valve plug 55 of relief port C conducting, described the first pilot valve 51 is provided with the gas circuit communicating with main valve 50, also be provided with the braking admission port P1 communicating with air receiver side gas circuit and the braking exhausr port 01 communicating with atmosphere, in described the first pilot valve 51, be also provided with and can pass through braking during standstill end-coil D1, D2 power on/off makes its evolution, make respectively to brake admission port P1 and main valve 50 conductings or make to brake the first spool 53 of exhausr port 01 and main valve 50 conductings, described the second pilot valve 52 is provided with the gas circuit communicating with main valve 50, also be provided with the braking releasing exhausr port 02 that the braking communicating with air receiver side gas circuit is removed admission port P2 and communicated with atmosphere, in the second pilot valve 52, being also provided with can be by removing parking end-coil D3, D4 power on/off makes its evolution, make respectively braking remove admission port P2 and main valve 50 conductings or make braking remove the second spool 54 of exhausr port 02 and main valve 50 conductings, this valve also comprises that one end is connected with the first spool 53 in the first pilot valve 51, the emergency brake mechanism 4 that the other end is connected with the emergency brake draw ring 1 in operator's compartment by bracing wire 3 and one end are connected with the second spool 54 in the second pilot valve 52, the other end removes with the emergency brake in operator's compartment the emergency brake cancel system 6 that draw ring 2 is connected by bracing wire 7.
As Fig. 3, shown in Fig. 4 and Fig. 5, described emergency brake mechanism 4 comprises 90 ° of hook torsion springs 41, bolt 42, the first nut 43, adapter sleeve 44, the second nut 45, bracing wire positioning cap 46, framework 47, plectrum 48 and screw 49, adapter sleeve 44 one end are fixedly connected with the first spool 53 of the first pilot valve 51, the hole of the other end is connected with the pivot shaft on framework 47, plectrum 48 is connected with screw 49 by pivot shaft and with adapter sleeve 44, 90 ° of hook torsion springs 41 are linked up with one end and are movably connected on plectrum 48, the other end is movably connected in the high spot of framework 47 grooves, one end of bracing wire 3 is fixedly connected on plectrum 48 with bolt 42 with the first nut 43, its spool is fixed on framework 47 by the second nut 45 and bracing wire positioning cap 46.
Same as Fig. 3, shown in Fig. 4 and Fig. 5, described emergency brake cancel system 6 comprises 90 ° of hook torsion springs 41, bolt 42, the first nut 43, adapter sleeve 44, the second nut 45, bracing wire positioning cap 46, framework 47, plectrum 48 and screw 49, adapter sleeve 44 one end are fixedly connected with the second spool 54 of the second pilot valve 52, the hole of the other end is connected with the pivot shaft on framework 47, plectrum 48 is connected by pivot shaft and with adapter sleeve 44 use screws 49, 90 ° of hook torsion springs 41 are linked up with one end end and are stuck on plectrum 48, the other end is stuck in framework 47 groove high spots, one end of bracing wire 7 is fixed on plectrum 48 with bolt 42 with the first nut 43, its spool is fixed on framework 47 by the second nut 45 and bracing wire positioning cap 46.
When urgent braking during standstill, chaufeur pulls the emergency brake draw ring 1 in operator's compartment, and the rotation of plectrum 48 is controlled in bracing wire 3, and then the movement of control the first spool 53, make C mouth and the conducting of A mouth of vapour-pressure type integrated electronic braking valve for vehicle, complete the bleeding of braking valve for vehicle, realize braking during standstill.While unclamping emergency brake draw ring 1, plectrum 48 is by 90 ° of hook torsion spring 41 returns, and the first spool 53 returns also still maintain C mouth and A mouth normal open state, ensure that vehicle is always in braking during standstill state.
When urgent braking during standstill is removed, chaufeur pulls the emergency brake in operator's compartment to remove draw ring 2, the rotation of plectrum 48 is controlled in bracing wire 6, and then the movement of control the second spool 54, the C mouth of air-pressure type electronic braking valve for vehicle and the conducting of B mouth, complete the intake operation of braking valve for vehicle, realize braking during standstill and remove.While unclamping emergency brake releasing draw ring 2, plectrum 48 is by 90 ° of hook torsion spring 41 returns, and the second spool 54 returns also still maintain C mouth and B mouth normal open state, make vehicle always in braking during standstill disarm state.
The movement of the first spool 53, the second spool 54 can be by the extension and contraction control of pilot valve inner spring is realized, for example, the spool of pilot valve has the knob that stretches out pilot valve, and this knob one end is being fixedly connected with spring, and the other end is fixedly connected with the adapter sleeve 44 of emergency mechanism.In the time pulling bracing wire plectrum rotated, drive adapter sleeve to rotate, make knob, the spring of compression pilot valve inner spool, moves spool, reaches with coil electricity back valve core and moves, and main valve plug moves identical effect.
Claims (3)
1. one kind has the vapour-pressure type integrated electronic braking valve for vehicle of emergency operation, comprise main valve (50), the first pilot valve (51), the second pilot valve (52), described main valve (50) has the exhausr port (A) communicating with atmosphere respectively, the inflation inlet (B) communicating with air receiver, the relief port (C) communicating with braking during standstill air chamber, in described main valve (50), be provided with by its evolution and can make respectively exhausr port (A) with relief port (C) conducting or make inflation inlet (B) and the main valve plug (55) of relief port (C) conducting, described the first pilot valve (51) is provided with the gas circuit communicating with main valve (50), also be provided with the braking admission port (P1) communicating with air receiver side gas circuit and the braking exhausr port (01) communicating with atmosphere, in described the first pilot valve (51), be also provided with and can pass through braking during standstill end-coil (D1, D2) power on/off makes its evolution, make respectively to brake admission port (P1) with main valve (50) conducting or make to brake first spool (53) of exhausr port (01) and main valve (50) conducting, described the second pilot valve (52) is provided with the gas circuit communicating with main valve (50), also be provided with the braking releasing exhausr port (02) that the braking communicating with air receiver side gas circuit is removed admission port (P2) and communicated with atmosphere, in the second pilot valve (52), being also provided with can be by removing parking end-coil (D3, D4) power on/off makes its evolution, make respectively to brake and remove admission port (P2) with main valve (50) conducting or make braking remove second spool (54) of exhausr port (02) and main valve (50) conducting, it is characterized in that: also comprise that one end is connected with the first spool (53) in the first pilot valve (51), the emergency brake mechanism (4) that the other end is connected with the emergency brake draw ring (1) in operator's compartment by bracing wire (3) and one end are connected with the second spool (54) in the second pilot valve (52), the other end removes with the emergency brake in operator's compartment the emergency brake cancel system (6) that draw ring (2) is connected by bracing wire (7).
2. the vapour-pressure type integrated electronic braking valve for vehicle with emergency operation according to claim 1, it is characterized in that: described emergency brake mechanism (4) comprises 90 ° of hook torsion springs (41), bolt (42), the first nut (43), adapter sleeve (44), the second nut (45), bracing wire positioning cap (46), framework (47), plectrum (48) and screw (49), adapter sleeve (44) one end is fixedly connected with first spool (53) of the first pilot valve (51), the hole of the other end is connected with the pivot shaft on framework (47), plectrum (48) passes through pivot shaft and is connected with screw (49) with adapter sleeve (44), 90 ° of hook torsion springs (41) hook one end is movably connected on plectrum (48), the other end is movably connected in the high spot of framework (47) groove, first nut for one end (43) of bracing wire (3) is fixedly connected on plectrum (48) with bolt (42), its spool is fixed on framework (47) by the second nut (45) and bracing wire positioning cap (46).
3. the vapour-pressure type integrated electronic braking valve for vehicle with emergency operation according to claim 1, it is characterized in that: described emergency brake cancel system (6) comprises 90 ° of hook torsion springs (41), bolt (42), the first nut (43), adapter sleeve (44), the second nut (45), bracing wire positioning cap (46), framework (47), plectrum (48) and screw (49), adapter sleeve (44) one end is fixedly connected with second spool (54) of the second pilot valve (52), the hole of the other end is connected with the pivot shaft on framework (47), plectrum (48) passes through pivot shaft and is connected with screw (49) with adapter sleeve (44), 90 ° of hook torsion springs (41) hook one end end is stuck on plectrum (48), the other end is stuck in framework (47) groove high spot, first nut for one end (43) of bracing wire (7) is fixed on plectrum (48) with bolt (42), its spool is fixed on framework (47) by the second nut (45) and bracing wire positioning cap (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310025335.4A CN103072562B (en) | 2013-01-23 | 2013-01-23 | Pneumatic type integrated electronic parking brake valve with emergency operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310025335.4A CN103072562B (en) | 2013-01-23 | 2013-01-23 | Pneumatic type integrated electronic parking brake valve with emergency operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103072562A CN103072562A (en) | 2013-05-01 |
| CN103072562B true CN103072562B (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310025335.4A Active CN103072562B (en) | 2013-01-23 | 2013-01-23 | Pneumatic type integrated electronic parking brake valve with emergency operation |
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| CN (1) | CN103072562B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108501920A (en) * | 2018-04-02 | 2018-09-07 | 武汉欧拓莫科技有限公司 | A kind of air-pressure type electronic parking braking system |
| CN109501791B (en) * | 2018-09-30 | 2024-01-19 | 浙江万安科技股份有限公司 | Integrated EPB valve assembly and EPB electronic parking brake system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087590A (en) * | 1993-05-29 | 1994-06-08 | 王石麟 | Full-automatic safety compensation structure for vehicle praking |
| US6007159A (en) * | 1998-04-20 | 1999-12-28 | Navistar International Transportation Corp | Parking brake lock-in key switch system for vehicle air brake system |
| CN101879893A (en) * | 2010-07-28 | 2010-11-10 | 一汽解放青岛汽车厂 | Air-pressure type electronic parking brake system and method |
| CN202144253U (en) * | 2011-07-14 | 2012-02-15 | 蒋晓琴 | Self-locking protecting device for parking brake |
| CN203126828U (en) * | 2013-01-23 | 2013-08-14 | 南京艾斯福汽车科技有限公司 | Pneumatic type integrated electronic parking brake valve with emergency operation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7216941B2 (en) * | 2005-04-18 | 2007-05-15 | International Truck Intellectual Property Company, Llc | Parking brake lock-in key switch system with automatic application for a vehicle with an air brake system |
-
2013
- 2013-01-23 CN CN201310025335.4A patent/CN103072562B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087590A (en) * | 1993-05-29 | 1994-06-08 | 王石麟 | Full-automatic safety compensation structure for vehicle praking |
| US6007159A (en) * | 1998-04-20 | 1999-12-28 | Navistar International Transportation Corp | Parking brake lock-in key switch system for vehicle air brake system |
| CN101879893A (en) * | 2010-07-28 | 2010-11-10 | 一汽解放青岛汽车厂 | Air-pressure type electronic parking brake system and method |
| CN202144253U (en) * | 2011-07-14 | 2012-02-15 | 蒋晓琴 | Self-locking protecting device for parking brake |
| CN203126828U (en) * | 2013-01-23 | 2013-08-14 | 南京艾斯福汽车科技有限公司 | Pneumatic type integrated electronic parking brake valve with emergency operation |
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| CN103072562A (en) | 2013-05-01 |
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