CN108146415B

CN108146415B - Electronic parking integrated valve and control method thereof

Info

Publication number: CN108146415B
Application number: CN201810012179.0A
Authority: CN
Inventors: 金方昭; 王鲜艳; 谭小艳; 卢长爱
Original assignee: Ruili Group Ruian Auto Parts Co Ltd
Current assignee: Wenzhou Ruili Kormee Automotive Electronics Co ltd
Priority date: 2018-01-05
Filing date: 2018-01-05
Publication date: 2023-03-31
Anticipated expiration: 2038-01-05
Also published as: CN108146415A

Abstract

The utility model provides an electronic parking integrated valve, its includes the upper cover, valve body in this upper cover connection, valve body below is connected down to this well valve body, and the back lid is connected to this well valve body rear, well valve body outside includes ABS air inlet (1) and two-position tee bend electronic control valve air inlet (1-1), its characterized in that: at least one two-way check valve, at least one two-position three-way electronic control valve and at least one ABS air pressure regulator are embedded in the middle valve body, the ABS air pressure regulator comprises two electromagnetic valve cores which are arranged in parallel, the two-position three-way electronic control valve is positioned in the middle valve body on one side of the ABS air pressure regulator, a movable iron core VI (206) of the two-position three-way electronic control valve comprises an air pressure channel VI (106), a spring V (205) is sleeved outside the movable iron core VI (206), and the top of the movable iron core VI (206) further comprises a valve opening III (303); the electronic parking integrated valve integrates the functions of three valves, is convenient to control, saves the manufacturing cost and greatly improves the control efficiency.

Description

Electronic parking integrated valve and control method thereof

Technical Field

The patent relates to a commercial car air brake electron parking system, specifically relates to a commercial car electronic parking valve for braking.

Background

At present, the parking system of domestic commercial vehicles adopts mechanical hand brake valves, the parking and the release are mainly realized through the hand brake valves, the product is simple, but the function is single, and the intelligent and automatic development trend of the commercial vehicles at present cannot be met. The electronic parking valve is applied to a commercial vehicle pneumatic brake electronic parking system (EPB) and is used as an actuating mechanism of parking brake and emergency brake, and besides replacing a traditional hand brake valve, the electronic parking valve can be controlled by an ECU to realize a temporary parking function, an emergency function, a starting release function, flameout control, a hill starting auxiliary function and the like. Even if a few manufacturers produce the electronic parking valve, the number of valve elements and electric devices is large, pipelines are not easy to assemble, the occupied space is large, and great inconvenience is brought.

In order to comply with the market and develop part of force for the intellectualization and automation of domestic commercial vehicles, the patent aims to provide an actuating mechanism of an electronic parking system, which can realize the memory functions of parking and releasing by electronic control; a temporary parking function; and realizes a bi-pass one-way function for combining with service braking.

The Chinese patent with the application number of 201010238129.8 discloses a pneumatic electronic parking brake system and a brake method, the pneumatic electronic parking brake system comprises an air storage cylinder, a hand brake switch and a hand brake air chamber, the air storage cylinder is connected with the hand brake air chamber through an air pipeline, the pneumatic electronic parking brake system further comprises a pneumatic electronic parking valve and a parking brake controller, the pneumatic electronic parking valve is connected between the air storage cylinder and the hand brake air chamber, and the parking brake controller is connected between the hand brake switch and the pneumatic electronic parking valve. The pneumatic electronic parking brake system provided by the invention has the advantages of simple structure, convenience in manufacturing, low cost and capability of realizing automatic control of parking brake. The braking method based on the braking system is simple to operate, accurate to control, safe and reliable, but the functions of the braking system are not intelligent enough.

Disclosure of Invention

ABS as referred to herein is the acronym for antilock brake system (antilock brake system). The ABS has the function of automatically controlling the braking force of the brake when an automobile brakes, so that wheels are not locked and are in a rolling and sliding (the sliding rate is about 20%) state, and the adhesion between the wheels and the ground is ensured to be at the maximum.

The electronic parking integrated valve comprises an upper cover, wherein the upper cover is connected with a middle valve body, a lower valve body is connected below the middle valve body, a rear cover is connected behind the middle valve body, the outer side of the middle valve body comprises an ABS (anti-lock brake system) air inlet and a two-position three-way electronic control valve air inlet, at least one two-way check valve, at least one two-position three-way electronic control valve and at least one ABS (anti-lock brake system) air pressure regulator are embedded in the middle valve body, the ABS air pressure regulator comprises two electromagnetic valve cores which are arranged in parallel, the two-position three-way electronic control valve is positioned in the middle valve body on one side of the ABS air pressure regulator, a movable iron core VI of the two-position three-way electronic control valve comprises an air pressure channel VI, a spring V is sleeved outside the movable iron core VI, the top of the movable iron core VI also comprises a valve port III, an air pressure channel V is arranged between the valve port III of the two-position three-way electronic control valve and the upper cover, a valve port IV is arranged below the movable iron core VI of the two-position three-way electronic control valve, a coil I is wound outside the movable iron core, and an air pressure channel VII is arranged between the bottom of the two-position three-way electronic control valve body; the ABS air pressure regulator comprises an electromagnetic valve II and an electromagnetic valve III which are arranged in the center of the middle valve body, an electromagnetic valve coil II is wound on the outer side of the electromagnetic valve II, a spring VII is arranged between the upper part of the electromagnetic valve II and the upper cover, a movable iron core is arranged on the upper part of the electromagnetic valve II, a valve opening VI is arranged below the movable iron core of the electromagnetic valve II, a valve opening V is arranged above the movable iron core VIII of the electromagnetic valve II, an air pressure channel I is formed between the upper part of the movable iron core VIII of the electromagnetic valve II, the upper part of the electromagnetic valve III and the upper cover, and the air pressure channel I is communicated with the ABS air inlet; solenoid valve III outside winding solenoid valve coil III, solenoid valve III lower part sets up movable iron core IX, and this solenoid valve III's movable iron core IX top includes valve mouth VII, this solenoid valve III's movable iron core IX below with inlay between the lower valve body and adorn spring X. The movable iron core IX of solenoid valve III below includes valve mouth VIII, the movable iron core IX lower part of solenoid valve III with still include atmospheric pressure passageway IV down between the valve body, down the valve body with include atmospheric pressure passageway VIII between the solenoid valve II lower part.

Preferably, the side surface of the middle valve body comprises a second output port, and an exhaust port is arranged at the lower part of the lower valve body.

In any of the above schemes, preferably, the two-way check valve is arranged between the upper cover and the middle valve body on the inner side of the second output port, and a valve opening IX is arranged between one side of the two-way check valve and the middle valve body.

In any of the above schemes, preferably, a valve port X is included between the other side of the two-way check valve and the middle valve body.

In any of the above schemes, preferably, the middle valve body on the other side of the two-way check valve includes the air pressure channel VI, and the air pressure channel VI communicates with the two-position three-way electronic control valve and the valve port X of the two-way check valve under a specific working condition.

In any of the above schemes, preferably, an air pressure channel IX is arranged in the middle valve body outside the valve opening IX on one side of the two-way check valve.

In any of the above embodiments, it is preferable that the pneumatic passage IX communicates with a pneumatic passage II, a diaphragm II is provided at a terminal of the pneumatic passage IX, a spring I is provided between an outer side of the diaphragm II and the middle valve body, and one outer side of the diaphragm II includes a pneumatic passage XI.

In any of the above schemes, preferably, a valve opening I is arranged between the diaphragm II and the middle valve body.

In any of the above embodiments, it is preferable that the gas pressure channel XI includes two part channels perpendicular to each other.

In any of the above schemes, it is preferable that the middle valve body on the right side of the two-way check valve further includes an air pressure channel II, and the air pressure channel II is perpendicular to the central axis of the air pressure channel IX.

In any of the above schemes, preferably, a pneumatic channel XII is provided in the middle valve body below the pneumatic channel II, the end of the pneumatic channel XII includes a diaphragm III, and a spring IV is provided between the lower part of the diaphragm III and the lower valve body.

In any of the above schemes, preferably, a valve opening II is further included between the middle valve body outside the air pressure channel XII and the diaphragm III.

In any of the above aspects, it is preferable that the central axis of the gas pressure passage XII is perpendicular to the central axis of the gas pressure passage II.

In any of the above schemes, it is preferable that a pneumatic pressure channel III is further included between the spring IV and the lower valve body.

In any of the above schemes, preferably, the two-position three-way electronic control valve is communicated with a two-position three-way electronic control valve coil, the two-position three-way electronic control valve coil is arranged outside the middle valve body, a common coil is further arranged above the two-position three-way electronic control valve coil, and an ABS exhaust coil and an ABS intake coil are further arranged outside the middle valve body.

The working principle of the electronic parking integrated valve provided by the first aspect of the invention is as follows:

the air inlet inputs air pressure, flows into atmospheric pressure passageway V, moves iron core VI and closes valve opening III under spring V's effect, and whole operating mode shows: the ABS air inlet is used for air inlet, and the second output port is not used for output.

And the two-position three-way electronic control valve coil and the common coil of the plug-in unit are switched on by electrifying, the electromagnetic valve coil I works, and the electromagnetic valve coil I exerts downward force on the movable iron core VI to overcome the resistance of the spring V so as to move downwards, so that the valve opening IV is closed, and meanwhile, the valve opening III is opened. At this time, the air pressure in the air pressure passage V flows into the air pressure passage VI through the valve port III. Atmospheric pressure of atmospheric pressure passageway VI acts on the bi-pass check valve, opens valve mouth X, and valve mouth IX is closed simultaneously, and atmospheric pressure passageway VI's gas flow in to the second delivery outlet, shows: the air inlet of the two-position three-way electronic control valve is used for air inlet, the coil of the two-position three-way electronic control valve and the public coil are electrified, and the second output port outputs air pressure.

As long as the two-position three-way electronic control valve coil is communicated with the common coil, the solenoid valve coil I works, and the second output port outputs air pressure; and when the two-position three-way electronic control valve coil and the common coil are switched on and off, the second output port discharges air pressure, and the function of detecting the two-position three-way electronic control valve trailer is realized. During this process, there will be corresponding indicator lights and pressure gauge displays. In addition, the second output port is connected with a parking cavity of the brake air chamber, so that the vehicle can be started and run as long as the parking cavity has air pressure, and the vehicle is in a parking state and cannot run when the parking cavity does not have air pressure. The function is used before the vehicle runs, and whether the gas circuit is normal or not is detected and used as detection.

And the coil of the two-position three-way electronic control valve and the common coil are powered off, the coil I of the electromagnetic valve does not work, and the downward force applied to the movable iron core VI by the coil I of the electromagnetic valve disappears to be zero. The movable iron core VI moves upwards under the action of the spring V to close the valve opening III and open the valve opening IV at the same time. The gas entering from the gas inlet of the two-position three-way electronic control valve only flows to the gas pressure channel V and then is cut off by the valve opening III. The gas of second delivery outlet flows into atmospheric pressure passageway VI through valve mouth X, later flows to atmospheric pressure passageway VII through valve mouth IV, reentries atmospheric pressure passageway VIII, then discharges the atmosphere from the gas vent, shows: the air inlet of the two-position three-way electronic control valve is used for air inlet, the coil of the two-position three-way electronic control valve and the common coil are powered off, and the second output port outputs air and exhausts the air from the exhaust port to the atmosphere.

A second aspect of the present invention provides a parking control method of an electronic parking integrated valve, including:

the ABS air inlet is used for air inlet, the air enters the air pressure channel I, the air pressure acts on the diaphragm II and pushes the diaphragm II upwards, so that the valve opening I is opened, and the air enters the air pressure channel II; meanwhile, the gas in the gas pressure channel I flows to a valve opening V and a valve opening VIII; the movable iron core VIII closes the valve opening V under the action of the spring VII, the movable iron core IX closes the valve opening VIII under the action of the spring X, gas in the gas pressure channel I flows into the gas pressure channel III through the gas pressure channel IV, the gas in the gas pressure channel III acts on the diaphragm III to close the valve opening II, the gas in the gas pressure channel II flows into the gas pressure channel IX to push the two-way check valve to move downwards, at the moment, the valve opening IX is opened, the valve opening X is closed, and the gas flows out of the second output port; the expression is as follows: the ABS air inlet is used for air inlet, and the second output port is used for outputting air; in the step, the vehicle is in a normal driving state, namely, parking is released.

b. And electrifying the two-position three-way electronic control valve coil and the common coil, operating the electromagnetic valve coil II, and applying a downward force to the movable iron core VIII by the electromagnetic valve coil II to overcome the acting force of the spring VII and move downwards to close the valve opening VI and open the valve opening V at the same time. At the moment, the gas in the air pressure channel I flows to the air pressure channel X through the valve opening V, then flows into the air pressure channel XI, and then acts downward force on the diaphragm II to close the valve opening I; the expression is as follows: and the ABS air inlet is used for air inlet, and the pressure of the second output port is maintained.

c. And electrifying the two-position three-way electronic control valve coil and the common coil, operating the electromagnetic valve coil III, applying upward force to the movable iron core IX by the electromagnetic valve coil III, overcoming the acting force of the spring X and moving upward to close the valve opening VII, and simultaneously opening the valve opening VIII. At this time, the gas in the pressure channel III flows into the pressure channel IV, then flows into the pressure channel VIII through the valve port VIII, and is then discharged to the atmosphere from the exhaust port.

d. Keeping the air pressure of the air pressure channel III reduced to 0, enabling the diaphragm III to move downwards under the action of the air pressure channel II, opening the valve opening II, and enabling the air of the second output port to flow into the air pressure channel IX through the valve opening IX and then flow into the air pressure channel II; the gas in the gas pressure channel II flows to the gas pressure channel XII through the valve opening II, then flows into the gas pressure channel VIII and is exhausted to the atmosphere from the exhaust port. The expression is as follows: the ABS air inlet is used for air inlet, and the second outlet is used for air outlet from the air outlet. ( C and d, exhausting the air pressure of the second output port; the ABS exhaust coil and the common coil are electrified, and the air pressure of the second output port can be exhausted; when the air pressure of the second output port, namely the parking cavity of the brake air chamber, is exhausted to a certain condition, the vehicle can realize parking brake, the exhaust is determined according to the condition, and when the required air pressure is reached (the air pressure is displayed by a sensor), the two-position three-way electronic control valve coil and the common coil can be powered off )

e. The two-position three-way electronic control valve coil and the common coil are powered off, the electromagnetic valve coil III does not work, the upward force of the electromagnetic valve coil III on the movable iron core IX is reduced, the movable iron core IX moves downward under the action of the spring X to close the valve opening VIII, and meanwhile, the valve opening VII is opened; the diaphragm III moves upwards under the action of the spring IV, and the valve opening II is closed. And the air pressure of the second output port is kept in a pressure maintaining state, the coil of the two-position three-way electronic control valve and the common coil are powered off, and the air pressure of the second output port is not exhausted.

f. Then the ABS exhaust coil and the ABS air inlet coil are powered off, the solenoid valve coil II does not work, the downward force of the solenoid valve coil II on the movable iron core VIII disappears, the movable iron core VIII moves upwards under the action of the spring VII to close the valve opening V, and meanwhile, the valve opening VI is opened; at this time, the gas in the gas pressure passage XI flows to the gas pressure passage X, then flows into the gas pressure passage VIII through the valve port VI, and finally is discharged to the atmosphere from the exhaust port. And at the moment, the air inlet state of the trailer is independently braked, namely parking is released, the ABS air inlet coil and the common coil are disconnected, air pressure flows into the second output port again, and the parking is released at the moment.

At this point step a will be repeated:

a, air in an ABS air inlet enters a channel, pushes a diaphragm II upwards, a valve opening is opened, air enters an air pressure channel II, and meanwhile air in the air pressure channel I flows to a valve opening V and a valve opening VIII; the movable iron core VIII closes the valve opening V under the action of the spring VII, the movable iron core IX closes the valve opening VIII under the action of the spring X, gas in the gas pressure channel I flows into the gas pressure channel III through the gas pressure channel IV, the gas in the gas pressure channel III acts on the diaphragm III to close the valve opening II, the gas in the gas pressure channel II flows into the gas pressure channel IX to push the two-way check valve to move downwards, at the moment, the valve opening IX is opened, the valve opening X is closed, and the gas flows out of the second output port; the expression is as follows: the ABS air inlet is used for air inlet, and the second output port is used for outputting air.

The functions of the electronic parking integrated valve are controlled by switching on and off a coil of the two-position three-way electronic control valve, an ABS exhaust coil, an ABS air inlet coil and a common coil through a control valve.

Preferably, steps a, b, c, d, e, f are performed in sequence to effect a switch between park release, park braking and re-park release.

Preferably, the parking control is realized by sequentially executing steps a, b, c, d, e, f, and a.

The parking control method of the electronic parking integration valve according to the second aspect of the invention employs the electronic parking integration valve according to the first aspect of the invention.

The electronic parking integrated valve integrates the functions of three valves, is convenient to control, saves the manufacturing cost and greatly improves the control efficiency.

Drawings

Fig. 1 is an external structural view of a preferred embodiment of an electronic parking integrated valve according to the present invention;

FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of the embodiment of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of the embodiment shown in FIG. 2;

FIG. 4 is a cross-sectional view taken along line C-C of the embodiment of FIG. 1;

the numerical designations in FIGS. 1-4 mean;

1 ABS air inlet 1-1 two-position three-way electronic control valve air inlet

101. Air pressure channel I102 air pressure channel II 103 air pressure channel III 104 air pressure channel IV 105 air pressure channel V

106. Pressure channel VI 107 pressure channel VII 108 pressure channel VIII 109 pressure channel IX

110. Air pressure channel X111 air pressure channel XI 112 air pressure channel XII

2. Second outlet

201. Spring I202 diaphragm II 203 diaphragm III 204 spring IV 205 spring V

206. Movable iron core VI 207, spring VII 208, movable iron core VIII 209, movable iron core IX 210, spring X

211. Two-way check valve

3. Exhaust port

301. Valve port I302, valve port II303, valve port III 304, valve port IV 305 and valve port V

306. Valve port VI 307, valve port VII 308, valve port VIII 309, valve port IX 310, valve port X

6.1 Two-position three-way electronic control valve coil 6.2 ABS exhaust coil 6.3 ABS air inlet coil

6.4 A common coil.

Detailed Description

Embodiment 1.1. The electronic parking integrated valve, wherein the valve is equipped with the valve in the valve body each movable iron core upper end and bottom end, is used for sealing, there are valves on the movable iron core, the static iron core below the movable iron core, for example, movable iron core VI 206 forms valve port III303 with the valve seat above, movable iron core VI 206 forms valve port IV 304 with the static iron core below; the movable iron core VIII208 and an upper valve seat form a valve port V305, and the movable iron core VIII208 and a lower static iron core form a valve port VI 306; the movable iron core IX209 and the lower valve seat form a valve port VIII 308, and the movable iron core IX209 and the upper static iron core form a valve port VII 307.

The electronic parking integrated valve in the embodiment comprises an upper cover, wherein the upper cover is connected with a middle valve body, a lower valve body is connected below the middle valve body, a rear cover is connected behind the middle valve body, the outer side of the middle valve body comprises an ABS air inlet 1 and a two-position three-way electronic control valve air inlet 1-1, a two-way check valve, a two-position three-way electronic control valve and an ABS air pressure regulator are embedded in the middle valve body, the ABS air pressure regulator comprises two electromagnetic valve cores which are arranged in parallel, the two-position three-way electronic control valve is positioned in the middle valve body on one side of the ABS air pressure regulator, a movable iron core VI 206 of the two-position three-way electronic control valve comprises an air pressure channel VI 106, a spring V205 is sleeved outside the movable iron core VI 206, the top of the movable iron core VI 206 further comprises a valve opening III303, an air pressure channel V105 is arranged between the valve opening III303 of the two-position three-way electronic control valve and the upper cover, a valve opening IV 304 is arranged below the movable iron core VI 206, a coil I is wound outside the two-position three-way electronic control valve, and an air pressure channel 107 is arranged between the bottom of the two-position three-way electronic control valve and the lower valve body; the ABS air pressure regulator comprises an electromagnetic valve II and an electromagnetic valve III which are arranged in the center of the middle valve body, an electromagnetic valve coil II is wound on the outer side of the electromagnetic valve II, a spring VII207 is arranged between the upper part of the electromagnetic valve II and the upper cover, a movable iron core VIII208 is arranged on the upper part of the electromagnetic valve II, a valve opening VI306 is arranged below the movable iron core VIII208 of the electromagnetic valve II, a valve opening V305 is arranged above the movable iron core VIII208 of the electromagnetic valve II, an air pressure channel I101 is formed between the upper part of the movable iron core VIII208 of the electromagnetic valve II, the upper part of the electromagnetic valve III and the upper cover, and the air pressure channel I101 is communicated with the ABS air inlet 1; the outer side of the electromagnetic valve III is wound with an electromagnetic valve coil III, the lower part of the electromagnetic valve III is provided with a movable iron core IX209, the upper part of the movable iron core IX209 of the electromagnetic valve III comprises a valve port VII307, and a spring X210 is embedded between the lower part of the movable iron core IX209 of the electromagnetic valve III and the lower valve body. The lower part of a movable iron core IX209 of the electromagnetic valve III comprises a valve opening VIII 308, an air pressure channel IV 104 is further arranged between the lower part of the movable iron core IX209 of the electromagnetic valve III and the lower valve body, and an air pressure channel VIII 108 is arranged between the lower valve body and the lower part of the electromagnetic valve II.

The side surface of the middle valve body comprises a second output port 2, and an exhaust port 3 is arranged at the lower part of the lower valve body.

The two-way check valve 211 is arranged between the upper cover and the middle valve body on the inner side of the second output port 2, and a valve opening IX309 is formed between one side of the two-way check valve 211 and the middle valve body.

A valve port X310 is arranged between the other side of the two-way check valve 211 and the middle valve body, an air pressure channel VI 106 is arranged in the middle valve body on the other side of the two-way check valve 211, and the air pressure channel VI 106 is communicated with the two-position three-way electronic control valve and the valve port X310 of the two-way check valve under a specific working condition; an air pressure channel IX109 is arranged in the middle valve body at the outer side of the valve opening IX309 at one side of the two-way check valve 211.

The air pressure channel IX109 is communicated with the air pressure channel 102, a diaphragm II202 is arranged at the tail end of the air pressure channel IX109, a spring I201 is arranged between the outer side of the diaphragm II202 and the middle valve body, and the outer side of the diaphragm II202 comprises an air pressure channel XI 111; a valve opening I301 is arranged between the diaphragm II202 and the middle valve body; the gas pressure channel XI 111 comprises two part channels perpendicular to each other.

The middle valve body on the right side of the two-way check valve 211 further comprises an air pressure channel II102, and the air pressure channel II102 is vertical to the central axis of the air pressure channel IX 109; a pneumatic channel XII112 is arranged in the middle valve body below the pneumatic channel II102, the tail end of the pneumatic channel XII112 comprises a diaphragm III 203, and a spring IV 204 is arranged between the lower part of the diaphragm III 203 and the lower valve body; a valve opening II 302 is also arranged between the middle valve body outside the air pressure channel XII112 and the diaphragm III 203; the central axis of the air pressure passage XII112 is perpendicular to the central axis of the air pressure passage II 102.

A pneumatic channel III 103 is also arranged between the spring IV 204 and the lower valve body.

The two-position three-way electronic control valve is communicated with a two-position three-way electronic control valve coil 6.1, the two-position three-way electronic control valve coil 6.1 is arranged outside the middle valve body, a public coil 6.4 is further arranged above the two-position three-way electronic control valve coil 6.1, and an ABS exhaust coil and an ABS air inlet coil are further arranged outside the middle valve body.

The working principle of the electronic parking integrated valve provided by the embodiment 1.1 is as follows: the air pressure is input into an air inlet 1-1 of the two-position three-way electronic control valve and flows into an air pressure channel V105, a movable iron core VI 206 closes a valve opening III303 under the action of a spring V205, and the whole working condition is represented as follows: and an ABS air inlet 1-1 is used for air inlet, and no output is output from a second output port 2.

The two-position three-way electronic control valve coil 6.1 and the common coil 6.4 of the plug-in unit are switched on by electrifying, the solenoid valve coil I works, the solenoid valve coil I exerts downward force on the movable iron core VI 206, and the movable iron core VI overcomes the force of the spring VI to move downwards, so that the valve opening IV 304 is closed, and meanwhile, the valve opening III303 is opened. At this time, the air pressure in the air pressure channel VI105 flows into the air pressure channel VI 106 through the valve port III 303. The air pressure in the air pressure channel VI 106 acts on the two-way check valve 211 to open the valve port X310, and the valve port IX309 is closed, so that the air in the air pressure channel VI 106 flows into the second output port 2, which is represented as: the air inlet 1-1 of the two-position three-way electronic control valve is used for air inlet, the coil 6.1 of the two-position three-way electronic control valve and the common coil 6.4 are electrified, and the second output port 2 outputs air pressure.

And the two-position three-way electronic control valve coil 6.1 and the public coil 6.4 are powered off, the solenoid valve coil I does not work, and the downward force applied to the movable iron core VI 206 by the solenoid valve coil I disappears to be zero. The plunger VI 206 moves upward under the action of the spring V205 to close the valve opening III303 and open the valve opening IV 304. The gas entering from the inlet port 1-1 of the two-position three-way electronic control valve flows only to the gas pressure channel V105 and is then cut off by the valve port III 303. The gas at the second output port 2 flows into the pneumatic channel VI 106 through the valve port X310, then flows into the pneumatic channel VII 107 through the valve port IV 304, then enters the pneumatic channel VIII 108, and then is exhausted to the atmosphere from the exhaust port 3, which is represented as: the air inlet 1-1 of the two-position three-way electronic control valve is used for air inlet, the coil 6.1 of the two-position three-way electronic control valve and the common coil 6.4 are powered off, and the second output port 2 outputs air and exhausts the air from the exhaust port 3 to the atmosphere.

Embodiment 2.1 a parking control method of an electronic parking integrated valve, comprising:

a1, air enters an ABS air inlet 1, enters an air pressure channel I101, the air pressure acts on a diaphragm II202 and pushes the diaphragm II upwards, so that a valve opening I301 is opened, and the air enters an air pressure channel II 102; meanwhile, the gas in the gas pressure channel I101 flows to a valve port V305 and a valve port VIII 308; the movable iron core VIII208 closes the valve port V305 under the action of the spring VII207, the movable iron core IX209 closes the valve port VIII 308 under the action of the spring X210, gas in the gas pressure channel I101 flows into the gas pressure channel III 103 through the gas pressure channel IV 104, gas in the gas pressure channel III 103 acts on the diaphragm III 203, the valve port II 302 is closed, gas in the gas pressure channel II102 flows into the gas pressure channel IX109, the two-way check valve 211 is pushed to move downwards, the valve port IX309 is opened at the moment, the valve port X310 is closed, and gas flows out of the second output port 2; the expression is as follows: the ABS air inlet 1 is used for air inlet, and the second output port 2 is used for outputting air.

B1. And electrifying the two-position three-way electronic control valve coil 6.3 and the common coil 6.4, operating the solenoid valve coil II, and applying a downward force to the movable iron core VIII208 by the solenoid valve coil II to overcome the acting force of the spring VII207 and move downwards to close the valve port VI306 and open the valve port V305. At this time, the gas in the gas pressure channel I101 flows to the gas pressure channel X110 through the valve port V305, then flows into the gas pressure channel XI 111, and then acts on the diaphragm II202 with a downward force, so that the valve port I301 is closed; the expression is as follows: the ABS air inlet 1 is used for air inlet, and the pressure of the second output port 2 is maintained.

C1. And electrifying the two-position three-way electronic control valve coil 6.2 and the common coil 6.4, operating the electromagnetic valve coil III, applying upward force to the movable iron core IX209 by the electromagnetic valve coil III, overcoming the acting force of the spring X210 and moving upward, closing the valve port VII307, and simultaneously opening the valve port VIII 308. At this time, the gas in the gas pressure passage III 103 flows into the gas pressure passage IV 104, then flows into the gas pressure passage VIII 108 through the valve port VIII 308, and is then discharged to the atmosphere from the gas discharge port 3.

D1. Keeping the air pressure of the air pressure channel III 103 reduced to 0, wherein under the action of the air pressure channel II102, the diaphragm III 203 moves downwards, the valve opening II 302 is opened, and the air of the second output port 2 flows into the air pressure channel IX109 through the valve opening IX309 and then flows into the air pressure channel II 102; the gas in the gas pressure passage II102 flows through the valve opening II 302 to the gas pressure passage XII112, then flows into the gas pressure passage VIII 108, and then is exhausted to the atmosphere from the exhaust port 3. The expression is as follows: the ABS air inlet 1 is used for air inlet, and the second output port 2 is used for air outlet from the air outlet 3.

E1. The two-position three-way electronic control valve coil 6.2 and the common coil 6.4 are powered off, the electromagnetic valve coil III does not work, the upward force of the electromagnetic valve coil III on the movable iron core IX209 is reduced, the movable iron core IX209 moves downward under the action of the spring X210, the valve port VIII 308 is closed, and the valve port VII307 is opened; the diaphragm III 203 moves upwards under the action of the spring IV 204, and the valve opening II 302 is closed.

F1. Then the ABS exhaust coil 6.3 and the ABS air inlet coil 6.4 are powered off, the solenoid valve coil II does not work, the downward force of the solenoid valve coil II on the movable iron core VIII208 disappears, the movable iron core VIII208 moves upwards under the action of the spring VII207, the valve port V305 is closed, and meanwhile the valve port VI306 is opened; at this time, the gas in the gas pressure channel XI 111 flows to the gas pressure channel X110, then flows through the valve port VI306, flows into the gas pressure channel VIII 108, and finally is discharged to the atmosphere from the gas discharge port 3.

The steps A1, B1, C1, D1, E1 and F1 are executed in sequence to realize the switching among parking release, parking brake and parking release again.

Embodiment 2.2 a parking control method of an electronic parking integrated valve, comprising:

a2, air enters from an ABS air inlet 1, enters into an air pressure channel I101, the air pressure acts on a diaphragm II202 and pushes the diaphragm II upwards, so that a valve opening I301 is opened, and the air enters into an air pressure channel II 102; meanwhile, the gas in the gas pressure channel I101 flows to a valve port V305 and a valve port VIII 308; the movable iron core VIII208 closes the valve port V305 under the action of the spring VII207, the movable iron core IX209 closes the valve port VIII 308 under the action of the spring X210, gas in the gas pressure channel I101 flows into the gas pressure channel III 103 through the gas pressure channel IV 104, gas in the gas pressure channel III 103 acts on the diaphragm III 203, the valve port II 302 is closed, gas in the gas pressure channel II102 flows into the gas pressure channel IX109, the two-way check valve 211 is pushed to move downwards, the valve port IX309 is opened at this time, the valve port X310 is closed, and gas flows out from the second output port 2; the expression is as follows: the ABS air inlet 1 is used for air inlet, and the second output port 2 is used for outputting air.

B2. And electrifying the two-position three-way electronic control valve coil 6.3 and the common coil 6.4, operating the electromagnetic valve coil II, and applying a downward force to the movable iron core VIII208 by the electromagnetic valve coil II to overcome the acting force of the spring VII207 and move downwards to close the valve port VI306 and open the valve port V305 at the same time. At this time, the gas in the gas pressure channel I101 flows to the gas pressure channel X110 through the valve port V305, then flows into the gas pressure channel XI 111, and then acts on the diaphragm II202 with a downward force, so that the valve port I301 is closed; the expression is as follows: the ABS air inlet 1 is used for air inlet, and the pressure of the second output port 2 is maintained.

C2. And electrifying the two-position three-way electronic control valve coil 6.2 and the common coil 6.4, operating the electromagnetic valve coil III, applying upward force to the movable iron core IX209 by the electromagnetic valve coil III, overcoming the acting force of the spring X210 and moving upward, closing the valve port VII307, and simultaneously opening the valve port VIII 308. At this time, the gas in the gas pressure passage III 103 flows into the gas pressure passage IV 104, then flows into the gas pressure passage VIII 108 through the valve port VIII 308, and is then discharged to the atmosphere from the gas discharge port 3.

D2. Keeping the air pressure of the air pressure channel III 103 reduced to 0, wherein under the action of the air pressure channel II102, the diaphragm III 203 moves downwards, the valve opening II 302 is opened, and the air of the second output port 2 flows into the air pressure channel IX109 through the valve opening IX309 and then flows into the air pressure channel II 102; the gas in the gas pressure passage II102 flows through the valve port II 302 to the gas pressure passage XII112, then flows into the gas pressure passage VIII 108, and then is exhausted to the atmosphere from the exhaust port 3. The expression is as follows: the ABS air inlet 1 is used for air inlet, and the second output port 2 is used for air outlet from the air outlet 3.

E2. The two-position three-way electronic control valve coil 6.2 and the common coil 6.4 are powered off, the electromagnetic valve coil III does not work, the upward force of the electromagnetic valve coil III on the movable iron core IX209 is reduced, the movable iron core IX209 moves downward under the action of the spring X210, the valve port VIII 308 is closed, and the valve port VII307 is opened; the diaphragm III 203 moves upwards under the action of the spring IV 204, and the valve opening II 302 is closed.

F2. Then the ABS exhaust coil 6.3 and the ABS air inlet coil 6.4 are powered off, the solenoid valve coil II does not work, the downward force of the solenoid valve coil II on the movable iron core VIII208 disappears, the movable iron core VIII208 moves upwards under the action of the spring VII207, the valve port V305 is closed, and meanwhile the valve port VI306 is opened; at this time, the gas in the gas pressure channel XI 111 flows to the gas pressure channel X110, then flows through the valve port VI306, flows into the gas pressure channel VIII 108, and finally is discharged to the atmosphere from the gas discharge port 3.

A2, the gas of the ABS gas inlet 1 enters the channel 101, pushes away the membrane II202 upwards, the valve opening 1 301 is opened, the gas enters the air pressure channel II102, and meanwhile, the gas of the air pressure channel I101 flows to the valve opening V305 and the valve opening VIII 308; the movable iron core VIII208 closes the valve port V305 under the action of the spring VII207, the movable iron core IX209 closes the valve port VIII 308 under the action of the spring X210, gas in the gas pressure channel I101 flows into the gas pressure channel III 103 through the gas pressure channel IV 104, gas in the gas pressure channel III 103 acts on the diaphragm III 203, the valve port II 302 is closed, gas in the gas pressure channel II102 flows into the gas pressure channel IX109, the two-way check valve 211 is pushed to move downwards, the valve port IX309 is opened at the moment, the valve port X310 is closed, and gas flows out of the second output port 2; the expression is as follows: the ABS air inlet 1 is used for air inlet, and the second output port 2 is used for outputting air.

A2, B2, C2, D2, E2, F2, A2 are performed in sequence.

The above embodiment controls the function of the electronic parking integrated valve by controlling the on/off of the two-position three-way electronic control valve coil 6.1 and the ABS exhaust coil 6.2, and the ABS intake coil 6.3 and the common coil 6.4 by the control valve.

The electronic parking integrated valve provided by the embodiment integrates the two-way check valve, the two-position three-way electronic control valve and the ABS air pressure regulator, and all functions of the three valves can be realized, so that the defects that the existing electronic parking brake involves a large number of valve parts and electric devices, the valve parts and pipelines are not easy to assemble, and the occupied space is large are overcome.

The electronic parking integrated valve provided by the embodiment belongs to a brand new design, is novel and compact in structure, small in size and light in weight, replaces the original two electronically controlled electromagnetic coils with one electromagnetic coil, and all gas circuit connectors adopt VOSS quick-insertion structures to effectively save materials and reduce the size of the whole valve body.

Claims

1. The utility model provides an electron parking integrated valve, its includes the upper cover, and valve body in this upper cover connection, valve body below connection lower valve body in this, the back lid is connected to valve body rear in this, well valve body outside includes ABS air inlet (1) and two-position tee bend electronic control valve air inlet (1-1), its characterized in that: the middle valve body is internally embedded with at least one two-way check valve, at least one two-position three-way electronic control valve and at least one ABS air pressure regulator, the ABS air pressure regulator comprises two electromagnetic valve cores which are arranged in parallel, the two-position three-way electronic control valve is positioned in the middle valve body on one side of the ABS air pressure regulator, a movable iron core VI (206) of the two-position three-way electronic control valve comprises an air pressure channel VI (106), a spring V (205) is sleeved outside the movable iron core VI (206), the top of the movable iron core VI (206) also comprises a valve opening III (303), the air pressure channel V (105) is arranged between the valve opening III (303) of the two-position three-way electronic control valve and the upper cover, the lower part of the movable iron core VI (206) comprises a valve opening IV (304), the outer side of the movable iron core of the two-position three-way electronic control valve is wound with a coil I, and an air pressure channel VII (107) is arranged between the bottom of the two-position three-way electronic control valve and the lower valve body; the ABS air pressure regulator comprises an electromagnetic valve II and an electromagnetic valve III which are arranged in the center of the middle valve body, an electromagnetic valve coil II is wound on the outer side of the electromagnetic valve II, a spring VII (207) is arranged between the upper part of the electromagnetic valve II and the upper cover, a movable iron core VIII (208) is arranged on the upper part of the electromagnetic valve II, a valve opening VI (306) is arranged below the movable iron core VIII (208) of the electromagnetic valve II, a valve opening V (305) is arranged above the movable iron core VIII (208) of the electromagnetic valve II, an air pressure channel I (101) is formed between the upper part of the electromagnetic valve III and the upper cover, and the air pressure channel I (101) is communicated with an ABS air inlet (1); an electromagnetic valve coil III is wound on the outer side of the electromagnetic valve III, a movable iron core IX (209) is arranged at the lower part of the electromagnetic valve III, a valve opening VII (307) is arranged above the movable iron core IX (209) of the electromagnetic valve III, and a spring X (210) is embedded between the lower part of the movable iron core IX (209) of the electromagnetic valve III and the lower valve body; the movable iron core IX (209) of the solenoid valve III is provided with a valve port VIII (308) below, the lower part of the movable iron core IX (209) of the solenoid valve III is provided with an air pressure channel IV (104) between the lower valve body, and the lower valve body is provided with an air pressure channel VIII (108) between the lower part of the solenoid valve II.

2. The electronic parking integrated valve as recited in claim 1, wherein: the side face of the middle valve body comprises a second output port (2), and an exhaust port (3) is formed in the lower portion of the lower valve body.

3. The electronic parking integrated valve of claim 1, wherein: the upper cover on the inner side of the second output port (2) and the middle valve body are provided with the two-way check valve (211), and one side of the two-way check valve (211) and the middle valve body comprise a valve opening IX (309).

4. The electronic parking integrated valve of claim 1, wherein: a valve port X (310) is arranged between the other side of the two-way one-way valve (211) and the middle valve body, an air pressure channel VI (106) is arranged in the middle valve body on the other side of the two-way one-way valve (211), and the air pressure channel VI (106) is communicated with the two-position three-way electronic control valve and the valve port X (310) of the two-way one-way valve under a specific working condition; an air pressure channel IX (109) is arranged in the middle valve body at the outer side of the valve opening IX (309) at one side of the two-way check valve (211).

5. The electronic parking integrated valve as recited in claim 1, wherein: the air pressure channel IX (109) is communicated with the air pressure channel II (102), the tail end of the air pressure channel IX (109) is provided with a diaphragm II (202), a spring I (201) is arranged between the outer side of the diaphragm II (202) and the middle valve body, and one side of the outer side of the diaphragm II (202) comprises an air pressure channel XI (111); a valve opening I (301) is arranged between the diaphragm II (202) and the middle valve body.

6. The electronic parking integrated valve of claim 1, wherein: the middle valve body on the right side of the two-way one-way valve (211) further comprises an air pressure channel II (102), and the air pressure channel II (102) is perpendicular to the central axis of the air pressure channel IX (109); a pneumatic channel XII (112) is arranged in the middle valve body below the pneumatic channel II (102), the tail end of the pneumatic channel XII (112) comprises a diaphragm III (203), and a spring IV (204) is arranged between the lower part of the diaphragm III (203) and the lower valve body; a valve opening II (302) is also arranged between the middle valve body outside the air pressure channel XII (112) and the diaphragm III (203); the central axis of the air pressure passage XII (112) is perpendicular to the central axis of the air pressure passage II (102).

7. The electronic parking integrated valve of claim 1, wherein: and a pneumatic channel III (103) is also arranged between the spring IV (204) and the lower valve body.

8. The electronic parking integrated valve as recited in claim 1, wherein: the two-position three-way electronic control valve is communicated with a two-position three-way electronic control valve coil (6.1), the two-position three-way electronic control valve coil (6.1) is arranged outside the middle valve body, a public coil (6.4) is further arranged above the two-position three-way electronic control valve coil (6.1), and an ABS exhaust coil and an ABS air inlet coil are further arranged outside the middle valve body.

9. A parking control method of an electronic parking integrated valve, comprising:

A1. the ABS air inlet (1) is used for air inlet, air enters the air pressure channel I (101), the air pressure acts on the diaphragm II (202) and pushes the diaphragm II upwards, so that the valve opening I (301) is opened, and the air enters the air pressure channel II (102); simultaneously, the gas in the gas pressure channel I (101) flows to a valve port V (305) and a valve port VIII (308); the movable iron core VIII (208) closes the valve port V (305) under the action of the spring VII (207), the movable iron core IX (209) closes the valve port VIII (308) under the action of the spring X (210), gas in the gas pressure channel I (101) flows into the gas pressure channel III (103) through the gas pressure channel IV (104), gas in the gas pressure channel III (103) acts on the diaphragm III (203), the valve port II (302) is closed, gas in the gas pressure channel II (102) flows into the gas pressure channel IX (109), the two-way check valve (211) is pushed to move downwards, the valve port IX (309) is opened at the moment, the valve port X (310) is closed, and gas flows out from the second output port (2); the expression is as follows: the ABS air inlet (1) is used for air inlet, and the second output port (2) is used for outputting air;

B1. electrifying a two-position three-way electronic control valve coil (6.1) and a common coil (6.4), operating an electromagnetic valve coil II, applying a downward force on a movable iron core VIII (208) by the electromagnetic valve coil II to overcome the acting force of a spring VII (207), moving downwards, closing a valve opening VI (306), and opening a valve opening V (305), wherein at the same time, the gas in a gas pressure channel I (101) flows to a gas pressure channel X (110) through the valve opening V (305), then flows into a gas pressure channel XI (111), and then applying a downward force on a diaphragm II (202) to close the valve opening I (301); the expression is as follows: the ABS air inlet (1) is used for air inlet, and the pressure of the second output port (2) is maintained;

C1. then electrifying the two-position three-way electronic control valve coil (6.1) and the common coil (6.4), operating the electromagnetic valve coil III, acting an upward force on the movable iron core IX (209) by the electromagnetic valve coil III, overcoming the acting force of the spring X (210) and moving upward, closing the valve port VII (307), and simultaneously opening the valve port VIII (308), wherein at the moment, the gas of the gas pressure channel III (103) flows into the gas pressure channel IV (104), then flows into the gas pressure channel VIII (108) through the valve port VIII (308), and then is exhausted to the atmosphere from the exhaust port (3);

D1. keeping the air pressure of the air pressure channel III (103) reduced to zero, and under the action of the air pressure channel II (102), the membrane III (203) moves downwards, the valve opening II (302) is opened, and the air of the second output port (2) flows into the air pressure channel IX (109) through the valve opening IX (309) and then flows into the air pressure channel II (102); the gas in the pneumatic channel II (102) flows through the valve opening II 302), flows to the pneumatic channel XII (112), flows into the pneumatic channel VIII (108), and is then exhausted to the atmosphere from the exhaust port (3), which is represented as: the ABS air inlet (1) is used for air inlet, and the second output port (2) is used for air outlet from the air outlet (3);

E1. the two-position three-way electronic control valve coil (6.1) and the common coil (6.4) are powered off, the solenoid valve coil III does not work, the upward force of the solenoid valve coil III on the movable iron core IX (209) is reduced, the movable iron core IX (209) moves downward under the action of the spring X (210), the valve port VIII (308) is closed, and meanwhile, the valve port VII (307) is opened; the diaphragm III (203) moves upwards under the action of the spring IV (204), and the valve opening II (302) is closed;

F1. then the ABS exhaust coil (6.2) and the ABS air inlet coil (6.3) are powered off, the solenoid valve coil II does not work, the downward force of the solenoid valve coil II on the movable iron core VIII (208) disappears, the movable iron core VIII (208) moves upwards under the action of the spring VII (207), the valve port V (305) is closed, and meanwhile the valve port VI (306) is opened; at the moment, the gas in the gas pressure channel XI (111) flows to the gas pressure channel X (110), then flows into the gas pressure channel VIII 108 through the valve port VI306, and finally is exhausted to the atmosphere from the exhaust port (3);

the method is characterized in that: the steps A1, B1, C1, D1, E1 and F1 are performed in sequence.

10. The parking control method of the electronic parking integrated valve according to claim 9, characterized in that: steps A1, B1, C1, D1, E1, F1, A1 are performed in sequence.