CN106114486B - A kind of ABS electric-gas control relay valve - Google Patents

A kind of ABS electric-gas control relay valve Download PDF

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Publication number
CN106114486B
CN106114486B CN201610554337.6A CN201610554337A CN106114486B CN 106114486 B CN106114486 B CN 106114486B CN 201610554337 A CN201610554337 A CN 201610554337A CN 106114486 B CN106114486 B CN 106114486B
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China
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valve
air flue
abs
piston
gas
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CN106114486A (en
Inventor
吴恒昌
李丽
马云旺
靳少杰
李建东
贾东亮
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Xuzhou Heavy Machinery Co Ltd
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Xuzhou Heavy Machinery Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T15/00Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02Application and release valves
    • B60T15/18Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere

Abstract

The invention discloses a kind of ABS electric-gas control relay valves, including ABS solenoid valve, electric proportional valve and relay valve and controller;ABS solenoid valve and electric proportional valve are disposed adjacent, and the bottom of ABS solenoid valve is arranged in relay valve, and controller is connected by appliance plug with ABS solenoid valve and electric proportional valve;Relay valve has air inlet, gas outlet, control mouth and exhaust outlet, air inlet is connected by air inlet air flue with electric proportional valve, gas outlet is connected by outlet air flue with the inner cavity of relay valve, control mouth is connected by controlling air flue with the inlet end of ABS solenoid valve, exhaust outlet is connected by being vented air flue with the outlet side of ABS solenoid valve, and the gas of electric proportional valve control air inlet air flue is shunted.It realizes integrating for ABS solenoid valve, electric proportional valve and relay valve, solves the problems, such as long wheelbase bring air pressure response lag, it is light-weight, compact-sized, installation space is saved, realizes light-weight design.

Description

A kind of ABS electric-gas control relay valve
Technical field
The present invention relates to a kind of relay valves to belong to automobile brake accessory more particularly to a kind of ABS electric-gas control relay valve Technical field.
Background technique
It is required according to standard GB/T 7258, lorry of the gross weight greater than 12t and special working truck, it is desirable that must install anti- Block braking system;And multiple-axle vehicle gross weight, commonly greater than 12t, establishing criteria need to install anti-lock braking system(ABS).Full ground is risen Heavy-duty machine, axle load is big, complete machine is long, wheelbase is big, is existed using air-pressure brake and builds pressure lag, causes the brake coordination time often in state It marks near desired 0.6s, is not easy to meet and coordinates time laws and regulations requirement.It is apparent that this problem is equally present in other multiple-axle vehicles On.
Simultaneously, it is ensured that ABS anti-lock braking system(ABS) normally plays a role, and ABS electromagnetic valve for adjusting is generally required to export to system Take offence room length of pipe no more than 1.5m, diameter is not less than 9mm.But it is (more that multiple-axle vehicle often has hydro pneumatic suspension, full-bridge Bridge) characteristics such as turn to, for the requirement for meeting ABS anti-lock braking system(ABS), ABS electromagnetic valve for adjusting is needed as close as possible to braking gas Room arrangement.
Anti-lock braking system(ABS): i.e. ABS(Anti-lock Braking System), pass through the sensor being mounted on wheel Wheel is issued by by the signal of locking, controller instruction adjusts the movement that ABS electromagnetic valve for adjusting implements pressurization, pressure maintaining, decompression, no Disconnected circulation makes wheel be in rotary state always and has biggish braking moment.
Relay valve: for shortening brake reaction time in Pneumatic braking system and releasing the time.
Brake chamber: it is the mechanical force for rotating brake camshaft by the pressure transition of compressed air, realizes braking maneuver.
Air-brake coupling hose: the components being used in brake system of car transmit automobile brake medium, guarantee that brake force can It is transmitted in motor vehicle brake shoe or caliper by ground, to keep braking effective at any time.
Hydro pneumatic suspension: hydro pneumatic suspension is a kind of suspension technology of vehicle, this suspension technology be by hydraulic pressure drive control system and Two technologies of suspension system combine, and it is the pass of modern special vehicle and oversize vehicle that the active that bodywork height may be implemented, which is adjusted, Key technology.
The brake coordination time: referring in emergency braking, to wheel braking when movement generation braking effect since pedal Rate builds the pressure time when reaching 75%.
However, the braking system of existing multiple-axle vehicle, steering system, electrical system, centralized lubricating system are mainly arranged In vehicle frame bottom surface, cause arrangement space limited or insufficient, the respective independent cloth of existing ABS electromagnetic valve for adjusting and foot relay valve It sets, occupied space is big, and mounting arrangements are more difficult.
Summary of the invention
It is a primary object of the present invention to, overcome deficiency in the prior art, a kind of ABS electric-gas control relay valve is provided, it is special It Shi Yongyu not multiple-axle vehicle.
Technical problem to be solved by the invention is to provide it is compact-sized, convenient for disassembly and assembly, be easy to make, securely and reliably, in fact With the strong ABS electric-gas control relay valve of property, integrating for ABS solenoid valve, electric proportional valve and relay valve is realized, it is alternative The foot relay valve in ABS solenoid valve and Pneumatic braking system in existing anti-lock braking system(ABS) ABS, passes through automatically controlled reaction Sensitivity solves the problems, such as long wheelbase bring air pressure response lag, while saving installation space, facilitating arrangement, realizes that lightweight is set Meter, the great utility value having in industry.
In order to achieve the above object, the technical scheme adopted by the invention is that:
A kind of ABS electric-gas control relay valve, including ABS solenoid valve, electric proportional valve and relay valve and controller;Institute It states ABS solenoid valve and electric proportional valve is disposed adjacent, the bottom of ABS solenoid valve, the control is arranged in the relay valve Device processed is connected by appliance plug with ABS solenoid valve and electric proportional valve.
Wherein, the relay valve has air inlet, gas outlet, control mouth and exhaust outlet, and the air inlet passes through air inlet gas Road is connected with electric proportional valve, and the gas outlet is connected by outlet air flue with the inner cavity of relay valve, and the control mouth passes through control Air flue is connected with the inlet end of ABS solenoid valve, the outlet side that the exhaust outlet passes through exhaust air flue and ABS solenoid valve It is connected, the gas of the electric proportional valve control air inlet air flue is shunted.
The present invention is further arranged to: the air inlet air flue and the coaxial arrangement of outlet air flue, the center of the control air flue Axis setting parallel with the central axis of air inlet air flue.
The present invention is further arranged to: the central axis of the central axis for controlling air flue and exhaust air flue is perpendicular to be set It sets, the air inlet and the ipsilateral distribution of control mouth.
The present invention is further arranged to: the ABS solenoid valve includes electromagnetism valve base, interior set on electromagnetism valve base At least two first electromagnetic cores;The electromagnetism valve base has the first sliding chamber, and the first sliding chamber is used to supply the first electromagnetic core Lower sliding.
The present invention is further arranged to: the electric proportional valve includes ratio valve base, interior set on the second of ratio valve base Electromagnetic core, and the piston rod through ratio valve base out;The ratio valve base has the second sliding chamber, and the second sliding chamber is used for It is slid up and down for the second electromagnetic core;The top of the piston rod is driven by the second electromagnetic core, and the bottom end of piston rod penetrates through Relay valve is extended into after air inlet air flue.
The present invention is further arranged to: being provided with gasket between the bottom end and relay valve of the piston rod.
The present invention is further arranged to: the piston rod is resetted by return spring.
The present invention is further arranged to: the relay valve includes having the upper valve base of piston seat and under air cavity sealing Valve seat is set to the exhaust pneumatic duct of lower valve base, is installed on the piston of piston seat, and is installed on air cavity sealing and exhaust air flue Annular piston between pipe;The inner cavity of the piston seat, the inner cavity of piston and the inner cavity formation exhaust air flue for being vented pneumatic duct.
Wherein, the inner cavity that the upper valve base and lower valve base are formed is divided into high-order plunger shaft and low level piston by piston Chamber, the piston are acted on by the draught head of high-order plunger shaft and low level plunger shaft and are moved up and down, and the air cavity sealing passes through ring The opening and closing of shape piston;The lower valve base offers the tap hole of power supply proportional valve control opening and closing, and the gas of the air inlet air flue passes through Tap hole connects with high-order plunger shaft;The upper valve base offers through-hole, and the ABS solenoid valve passes through through-hole and a high position Plunger shaft connects;The piston seat offers gas vent, and the ABS solenoid valve is mutually passed through by gas vent and exhaust air flue It is logical.
Moreover, when piston moves down, the bottom of piston touches annular piston and annular piston is driven to move down, so that annular Piston is sealed far from air cavity, and then air inlet air flue is connected by low level plunger shaft and outlet air flue;When piston moves up, annular The sealing of piston reset seal air cavity, and then piston moves up disengaging annular piston, and outlet air flue is made to pass through low level plunger shaft and exhaust Air flue connects.
The present invention is further arranged to: check valve is equipped between the control air flue and high-order plunger shaft, check valve is used Enter high-order plunger shaft from control air flue in control gas.
The present invention is further arranged to: the annular piston passes through the ring spring being set in outside exhaust pneumatic duct and is answered Position.
Compared with prior art, the invention has the advantages that:
1, integrating for ABS solenoid valve, electric proportional valve and relay valve is realized, it is light-weight, compact-sized, it can reduce The quantity of valve, pipeline and connector, the arrangement and light-weight design of vehicle of being more convenient for, being more suitable for the compact vehicle of arrangement space makes With.
2, it realizes electric control braking, solves the problems, such as that compressed air delivery efficiency is slow, braking response is slow, that is, pass through automatically controlled anti- Sensitivity is answered to solve the problems, such as long wheelbase bring air pressure response lag.
3, when implementing electric control braking, while gas control circuit behavior is triggered, i.e., pneumatic control circuit triggers simultaneously with electric control circuit, protects When demonstrate,proving electric control circuit failure, gas control brake operating is still effectively reliable.
4, the ECU(electronic control unit of anti-lock braking system(ABS) ABS is had no need to change) and wheel speed sensors, stability is good, Interchangeability is strong, can be directly compatible with existing ABS system;When brake pedal, the displacement information and dynamics information of brake pedal ECU will be transmitted by electric signal transmission interfaces, the electric control braking of ABS electric-gas control relay valve be controlled by ECU, but ECU's is defeated Enter signal and be not limited to brake pedal information, can be used for preventing tire locking from dragging cunning, and it is fast that Pneumatic braking system may be implemented Speed response and removing function.
5, the detection devices such as additional pressure sensor are not needed, it is low to controller requirement, it is applied to braking system open loop Control, control logic is simple, applied widely conducive to the popularization and application to multiple-axle vehicle.
Above content is only the general introduction of technical solution of the present invention, in order to better understand technological means of the invention, under In conjunction with attached drawing, the invention will be further described in face.
Detailed description of the invention
Fig. 1 is a kind of overlooking structure diagram of ABS electric-gas control relay valve of the present invention;
Fig. 2 is a kind of facing structure cut-away view of ABS electric-gas control relay valve of the present invention.
Specific embodiment
With reference to the accompanying drawings of the specification, the present invention is further illustrated.
As shown in Figures 1 and 2, a kind of ABS electric-gas control relay valve, including ABS solenoid valve 1, electric proportional valve 2 and after Dynamic valve 3 and controller (not shown);The ABS solenoid valve 1 and electric proportional valve 2 are disposed adjacent, the relay valve 3 are arranged in the bottom of ABS solenoid valve 1, and the controller passes through appliance plug 4 and ABS solenoid valve 1 and electric proportional valve 2 are connected.
The relay valve 3 is with 1 mouthful of air inlet, 2 mouthfuls of gas outlet, 4 mouthfuls of control mouth and 3 mouthfuls of exhaust outlet, 1 mouthful of the air inlet It is connected by air inlet air flue a with electric proportional valve 2,2 mouthfuls of the gas outlet is connected by outlet air flue b with the inner cavity of relay valve 3, institute It states 4 mouthfuls of control mouth and is connected by controlling air flue c with the inlet end of ABS solenoid valve 1,3 mouthfuls of the exhaust outlet pass through exhaust gas Road d is connected with the outlet side of ABS solenoid valve 1, and the gas that the electric proportional valve 2 controls air inlet air flue a is shunted.
As shown in Figures 1 and 2, the air inlet air flue a and outlet air flue b coaxial arrangement, the central axis of the control air flue c Line setting parallel with the central axis of air inlet air flue a;The central axis of the control air flue c and the central axis of exhaust air flue d The perpendicular setting of line, 1 mouthful of the air inlet and 4 mouthfuls of ipsilateral distributions of control mouth.
As shown in Fig. 2, the ABS solenoid valve 1 includes electromagnetism valve base 11, it is interior to be set to electromagnetism valve base 11 at least Two the first electromagnetic cores 12;First electromagnetic core 12 shown in Fig. 2 is 2, respectively M1 and M2, the electromagnetism valve base 11 have the first sliding chamber 13, and the first sliding chamber 13 is used to slide for the first about 12 electromagnetic core.
As shown in Fig. 2, the electric proportional valve 2 includes ratio valve base 21, interior the second electromagnetism set on ratio valve base 21 Iron core 22, M3 i.e. shown in Fig. 2, and the piston rod 23 through ratio valve base 21 out;The ratio valve base 21 has Second sliding chamber 24, the second sliding chamber 24 are used to slide for the second about 22 electromagnetic core;The top of the piston rod 23 is by the second electricity Magnetic core 22 drives, and the bottom end of piston rod 23 extends into relay valve 3 after penetrating through air inlet air flue.
Gasket 25 is provided between the bottom end and relay valve 3 of the piston rod 23, piston rod 23 passes through return spring 26 It is resetted.
As shown in Fig. 2, the relay valve 3 includes the upper valve base 31 with piston seat 5 and the lower valve base with air cavity sealing 6 32, it is set to the exhaust pneumatic duct 7 of lower valve base 32, is installed on the piston 8 of piston seat 5, and is installed on air cavity sealing 6 and exhaust Annular piston 9 between pneumatic duct 7;The inner cavity of the piston seat 5, the inner cavity of piston 8 and the inner cavity formation row for being vented pneumatic duct 7 Gas air flue d.
The inner cavity that the upper valve base 31 and lower valve base 32 are formed is divided into high-order plunger shaft A and low level piston by piston 8 Chamber B, the piston 8 are acted on by the draught head of high-order plunger shaft A and low level plunger shaft B and are moved up and down, and the air cavity sealing 6 is logical Cross the opening and closing of annular piston 9;Check valve 10 is installed between the control air flue c and high-order plunger shaft A, check valve 10 is for controlling Gas enters high-order plunger shaft A from control air flue c;The annular piston 9 passes through the ring spring being set in outside exhaust pneumatic duct 7 90 are resetted.
The lower valve base 32 offers the tap hole 33 for the control opening and closing of electric proportional valve 2, and the gas of the air inlet air flue a is logical Tap hole 33 and high position plunger shaft A is crossed to connect;The upper valve base 31 offers through-hole 34, and the ABS solenoid valve 1 passes through Through-hole 34 connects with high position plunger shaft A;The piston seat 5 offers gas vent 35, and the ABS solenoid valve 1 passes through row Stomata 35 connects with exhaust air flue d.
When piston 8 moves down, the bottom of piston 8 touches annular piston 9 and annular piston 9 is driven to move down, so that annular Piston 9 is far from air cavity sealing 6, and then air inlet air flue a is connected by low level plunger shaft B and outlet air flue b.
When piston 8 moves up, annular piston 9 resets seal air cavity sealing 6, and then piston 8 moves up and is detached from annular piston 9, Outlet air flue b is set to connect by low level plunger shaft B and exhaust air flue d.
Specific work process are as follows:
1, it is pressurized:
In pressurization, the first electromagnetic core M1 and M2 no power, the second electromagnetic core M3 is powered or no power, and second It is braked to be automatically controlled prior to gas control when electromagnetic core M3 is powered, when the second electromagnetic core M3 is because of no powers such as failures, by implementing just Normal gas control relay valve function is braked.
Electric control braking main valve controls automatically controlled and pneumatic control circuit simultaneously.When system is normal, electric control braking main valve is by driver The signal of trampling for being applied to varying strength on pedal is converted to its corresponding electric signal and is transmitted to controller ECU, ECU logic fortune It calculates, outputs control signals to the coil of the second electromagnetic core M3 of ABS electric-gas control relay valve, the second electromagnetic core M3 in proportion Move down and withstand on piston rod 23, piston rod 23 is pushed to move downwardly together, gasket 25 and 1 mouthful of air inlet of air inlet air flue a it Between tap hole 33 open, air flow to high-order plunger shaft A from 1 mouthful of air inlet;And then 8 downlink of piston is pushed, 8 downlink of piston pushes away Move annular piston 9;As annular piston 9 moves down, there is gap in annular piston 9 and air cavity sealing 6, open 1 mouthful of air inlet with Channel between 2 mouthfuls of gas outlet, so that air inlet air flue a and outlet air flue b connect, air is living by low level from 1 mouthful of air inlet Plug chamber B enters 2 mouthfuls of gas outlet, is filled with brake chamber, realizes electric control braking.
While electric control braking, because of the compressibility and hysteresis quality of air, from the control of foot brake valves gas outlet output Air enters 4 mouthfuls of control mouth, build press through journey be slightly slower than it is automatically controlled.By coil all no powers of the first solenoid valve iron core M1 and M2, It i.e. all in open state, controls gas and enters 4 mouthfuls of control mouth, high-order plunger shaft can be entered from control air flue c via through holes 34 A implements gas control braking.When electric control circuit malfunctions and can not work, system can guarantee to control in the case where no electric control circuit Air circuit processed carries out normal brake application operation.
When brake pedal has the tendency that stroke increase, the second electromagnetic core M3 is powered, and is opened by controller ECU according to pedal Degree calculates the electric current that control valve is opened;When pedal travel has reduction trend, i.e. foot starts to loosen or unclamp pedal, the second electromagnetism Iron core M3 power-off, detects that pedal travel increase tendency is powered again until next time.
2, pressure maintaining:
After stepping on foot brake pedal, the second electromagnetic core M3 is powered, when any one in the first electromagnetic core M1 and M2 When being powered or being powered together, the second electromagnetic core M3 power-off.Second electromagnetic core M3 power-off, the first electromagnetic core M1 and M2 are equal It is state of pressure keeping when energization.
Controller ECU issues pressure maintaining signal, the second electromagnetic core M3 power-off, the M1 energization of the first electromagnetic core, the first electricity The M2 of magnetic core continues to remain powered off.Piston rod 23 moves up, and gasket 25 is closed between 1 mouthful of air inlet and high-order plunger shaft A Channel, control pressure are only provided by 4 mouthfuls of control mouth.The M1 of first electromagnetic core is powered, cut off control gas via through holes 34 into Enter the channel of high-order plunger shaft A.At this point, because system pressure identical i.e. 2 mouthfuls of 1 mouthful of air inlet and gas outlet and 4 mouthfuls of control mouth Pressure is identical, and the air pressure in high-order plunger shaft A and low level plunger shaft B is equal, and the upper surface of piston 8 is identical with following area, so The bearing up-down force of piston 8 is identical, and 90 power of ring spring acts on piston 8, pushes piston 8 to move upwards, so that annular piston 9 By air cavity sealing 6 closing so that 1 mouthful of air inlet supply gas not can enter 2 mouthfuls of gas outlet can not be by exhaust outlet 3 Mouth discharge, to form state of pressure keeping.
3, it depressurizes:
When the second electromagnetic core M3 is powered off, the M2 of the first electromagnetic core is powered, the M1 power-off or logical of the first electromagnetic core Electricity is then in decompression state.
The M2 of first electromagnetic core obtain it is electric be in close state, the M2 of the first electromagnetic core move up close its inlet channel, The control pressure come from control air flue c conveying not can enter high-order plunger shaft A, while the upper enforcement of the M2 of the first electromagnetic core The gas obtained in high-order plunger shaft A is arranged through being vented air flue d to atmosphere by the gas vent 35 of through-hole 34 and piston seat 5;With height The air pressure of position plunger shaft A reduces, 8 uplink of piston, and then annular piston 9 is moved up 6 closing of air cavity sealing;With piston 8 Continue uplink, piston 8 makes low level plunger shaft B and exhaust air flue d connect after being detached from annular piston 9, and then low level plunger shaft B, 2 mouthfuls of gas outlet passes through 3 mouthfuls of exhaust outlet there are also the gas in brake chamber and arranges to atmosphere.
4, it is vented:
During foot brake pedal lifts, the second electromagnetic core M3 is powered off rapidly, and piston rod 23 drives gasket 25 It moves up, disconnects the channel between 1 mouthful of air inlet and high-order plunger shaft A;Meanwhile first electromagnetic core M1 and M2 power-off, The compressed air of high-order plunger shaft A flows into foot brake valves exhaust outlet from 4 mouthfuls of control mouth, discharges into atmosphere.At this time in low level plunger shaft B Pressure effect under, piston 8 moves up, and annular piston 9 moves up, at the same annular piston 9 under the action of ring spring 90 to moving up It is dynamic, with constantly moving up for piston 8, the channel of 2 mouthfuls of gas outlet with 3 mouthfuls of exhaust outlet is opened, to make the compression in 2 mouthfuls of gas outlet Air is arranged from 3 mouthfuls of exhaust outlet to atmosphere, realizes that service brake releases.
The innovation of the invention consists in that realizing integrating for ABS solenoid valve, electric proportional valve and relay valve, pass through Automatically controlled or gas control brake signal controls 4 mouthfuls of apertures of control mouth of ABS electric-gas control relay valve, guarantees that automatically controlled and gas control can root Servo-actuated brake force is generated according to brake-pedal travel, forms electricity, the gas opened loop control to relay valve.When brake pedal, electricity Control system realizes that electric control system controls relay valve is first braked, guarantees fast braking because electric signal transmission is better than gas signal;And Pneumatic control system reaction slightly lags behind electric-control system, and slightly slow gas control system also starts working, in ABS electric-gas control relay valve After 4 mouthfuls of control mouth are built pressure, the laser propagation effect of electric-control system is not influenced;Importantly, gas control can be with when electric-control system failure It is normal to play braking action.ABS electric-gas control relay valve of the invention, only be arranged 1 mouthful, one 2 mouthfuls of gas outlet of an air inlet, It is one 4 mouthfuls and one 3 mouthfuls of exhaust outlet of control mouth, light-weight, compact-sized, installation space can be saved, realizes light-weight design, especially It is suitable for multiple-axle vehicle Pneumatic braking systems.
Basic principles and main features and advantage of the invention have been shown and described above.The technical staff of the industry should Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle It is fixed.

Claims (10)

1. a kind of ABS electric-gas control relay valve, it is characterised in that: including ABS solenoid valve, electric proportional valve and relay valve, and Controller;The ABS solenoid valve and electric proportional valve are disposed adjacent, and the bottom of ABS solenoid valve is arranged in the relay valve Portion, the controller are connected by appliance plug with ABS solenoid valve and electric proportional valve;
The relay valve has air inlet, gas outlet, control mouth and exhaust outlet, and the air inlet passes through air inlet air flue and electric ratio Valve is connected, and the gas outlet is connected by outlet air flue with the inner cavity of relay valve, and the control mouth passes through control air flue and ABS electricity The inlet end of magnetically condition valve is connected, and the exhaust outlet is connected by being vented air flue with the outlet side of ABS solenoid valve, the electricity The gas of proportional valve control air inlet air flue is shunted.
2. a kind of ABS electric-gas control relay valve according to claim 1, it is characterised in that: the air inlet air flue and outlet gas Road coaxial arrangement, the central axis setting parallel with the central axis of air inlet air flue of the control air flue.
3. a kind of ABS electric-gas control relay valve according to claim 1, it is characterised in that: the central axis of the control air flue The perpendicular setting of central axis of line and exhaust air flue, the air inlet and the ipsilateral distribution of control mouth.
4. a kind of ABS electric-gas control relay valve according to claim 1, it is characterised in that: the ABS solenoid valve packet Include electromagnetism valve base, interior at least two first electromagnetic cores set on electromagnetism valve base;The electromagnetism valve base has first to slide Chamber, the first sliding chamber are used to slide up and down for the first electromagnetic core.
5. a kind of ABS electric-gas control relay valve according to claim 1, it is characterised in that: the electric proportional valve includes ratio Valve base, interior the second electromagnetic core set on ratio valve base, and the piston rod through ratio valve base out;The proportioning valve Valve seat has the second sliding chamber, and the second sliding chamber is used to slide up and down for the second electromagnetic core;The top of the piston rod is by the second electricity Magnetic core driving, the bottom end of piston rod extends into relay valve after penetrating through air inlet air flue.
6. a kind of ABS electric-gas control relay valve according to claim 5, it is characterised in that: the bottom end of the piston rod and after Gasket is provided between dynamic valve.
7. a kind of ABS electric-gas control relay valve according to claim 5, it is characterised in that: the piston rod passes through return bullet Spring is resetted.
8. a kind of ABS electric-gas control relay valve according to claim 1, it is characterised in that: the relay valve includes having to live The upper valve base of obturating plug and the lower valve base sealed with air cavity, are set to the exhaust pneumatic duct of lower valve base, are installed on the work of piston seat Plug, and the annular piston being installed between air cavity sealing and exhaust pneumatic duct;The inner cavity of the piston seat, the inner cavity of piston and The inner cavity for being vented pneumatic duct forms exhaust air flue;
The inner cavity that the upper valve base and lower valve base are formed is divided into high-order plunger shaft and low level plunger shaft, the piston by piston It is acted on and is moved up and down by the draught head of high-order plunger shaft and low level plunger shaft, the air cavity sealing is opened and closed by annular piston;
The lower valve base offers the tap hole of power supply proportional valve control opening and closing, the gas of the air inlet air flue by tap hole with High-order plunger shaft connects;
The upper valve base offers through-hole, and the ABS solenoid valve is connected by through-hole and high-order plunger shaft;
The piston seat offers gas vent, and the ABS solenoid valve is connected by gas vent and exhaust air flue;
When piston moves down, the bottom of piston touches annular piston and annular piston is driven to move down, so that annular piston is separate Air cavity sealing, and then air inlet air flue is connected by low level plunger shaft and outlet air flue;
When piston moves up, annular piston resets seal air cavity sealing, and then piston moves up disengaging annular piston, makes outlet air flue It is connected by low level plunger shaft and exhaust air flue.
9. a kind of ABS electric-gas control relay valve according to claim 8, it is characterised in that: the control air flue and a high position are living Check valve is installed, check valve enters high-order plunger shaft from control air flue for controlling gas between plug chamber.
10. a kind of ABS electric-gas control relay valve according to claim 8, it is characterised in that: the annular piston passes through set It is resetted loaded on the ring spring outside exhaust pneumatic duct.
CN201610554337.6A 2016-07-14 2016-07-14 A kind of ABS electric-gas control relay valve Active CN106114486B (en)

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Application Number Priority Date Filing Date Title
CN201610554337.6A CN106114486B (en) 2016-07-14 2016-07-14 A kind of ABS electric-gas control relay valve

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CN106114486B true CN106114486B (en) 2019-01-04

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CN111891101B (en) * 2020-08-07 2022-04-19 燕山大学 Electromagnetic valve for pneumatic brake-by-wire system and use method thereof
CN113386726B (en) * 2021-07-19 2022-11-22 中国重汽集团成都王牌商用车有限公司 Air chamber upper cover system with anti-lock function and control method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19903286A1 (en) * 1999-01-28 2000-08-03 Knorr Bremse Systeme Trailer control valve for compressed air braking installation of tractor vehicle-trailer combinations has throttle in connecting channel between first relay piston control chamber and second throttle valve control chamber
EP1826085A2 (en) * 2006-02-16 2007-08-29 Meritor WABCO Vehicle Control Systems Service brake relay with integrated quick release valve
CN101249826A (en) * 2007-05-08 2008-08-27 傅晓辉 Relay valve
GB2467957A (en) * 2009-02-21 2010-08-25 Haldex Brake Products Ltd Brake modulator valve with acceptable cracking pressure
JP2011042324A (en) * 2009-08-24 2011-03-03 Nabtesco Corp Brake pressure control valve and brake control device
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