CN110816501A - Anti-lock electromagnetic valve, braking device and air pressure braking system - Google Patents
Anti-lock electromagnetic valve, braking device and air pressure braking system Download PDFInfo
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- CN110816501A CN110816501A CN201911146560.7A CN201911146560A CN110816501A CN 110816501 A CN110816501 A CN 110816501A CN 201911146560 A CN201911146560 A CN 201911146560A CN 110816501 A CN110816501 A CN 110816501A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/26—Compressed-air systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/176—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
Abstract
The invention provides an anti-lock electromagnetic valve, a braking device and an air pressure braking system, and belongs to the technical field of braking. The anti-lock electromagnetic valve comprises a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve, wherein an inlet of the first electromagnetic valve is used for being connected with an outlet of the relay valve, an outlet of the first electromagnetic valve is used for being connected with the brake cylinder, an inlet of the second electromagnetic valve is communicated with an outlet of the first electromagnetic valve, an outlet of the second electromagnetic valve is used for anti-lock pressure relief, an inlet of the third electromagnetic valve is communicated with an outlet of the first electromagnetic valve, and an outlet of the third electromagnetic valve is used for relieving brake pressure relief. The invention aims to provide an anti-lock electromagnetic valve, a brake device and an air pressure brake system, wherein when the brake needs to be released, the anti-lock electromagnetic valve can quickly release the pressure of a brake cylinder.
Description
Technical Field
The invention relates to the technical field of brake braking, in particular to an anti-lock electromagnetic valve, a braking device and an air pressure braking system.
Background
In order to avoid the vehicle from running away during Braking and to reduce the Braking distance of the vehicle, many vehicles now use an Anti-lock Braking System (ABS) to brake the vehicle.
Current anti-lock brake systems are generally provided with a relay valve, an anti-lock solenoid valve (ABS valve), and a brake cylinder. When braking is needed, hydraulic oil or gas enters the brake cylinder through the relay valve and the anti-lock electromagnetic valve in sequence, and pressure is converted into mechanical motion through the brake cylinder to drive the brake connected with the brake cylinder to achieve braking. When the anti-lock brake is needed, the anti-lock system controller controls the inlet of the anti-lock electromagnetic valve to be closed, and opens the pressure relief port of the anti-lock electromagnetic valve, so that the pressure transmission medium such as hydraulic oil or gas in the brake cylinder is discharged from the pressure relief port through the outlet of the anti-lock electromagnetic valve, and the anti-lock of the brake cylinder is realized.
However, in the conventional anti-lock solenoid valve of the anti-lock brake system, rapid pressure relief of the brake cylinder cannot be realized in a normal brake release process without anti-lock operation.
Disclosure of Invention
The invention aims to provide an anti-lock electromagnetic valve, a brake device and an air pressure brake system, wherein when the brake needs to be released, the anti-lock electromagnetic valve can quickly release the pressure of a brake cylinder.
The embodiment of the invention is realized by the following steps:
in one aspect of embodiments of the present invention, there is provided an anti-lock solenoid valve including: the brake system comprises a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve, wherein an inlet of the first electromagnetic valve is used for being connected with an outlet of a relay valve, an outlet of the first electromagnetic valve is used for being connected with a brake cylinder, an inlet of the second electromagnetic valve is communicated with an outlet of the first electromagnetic valve, an outlet of the second electromagnetic valve is used for anti-lock pressure relief, an inlet of the third electromagnetic valve is communicated with an outlet of the first electromagnetic valve, and an outlet of the third electromagnetic valve is used for relieving the brake pressure relief.
Optionally, the outlet of the third solenoid valve communicates with the outlet of the second solenoid valve.
Optionally, the first solenoid valve, the second solenoid valve and the third solenoid valve are respectively a two-position two-way valve.
In another aspect of the embodiments of the present invention, there is provided a brake apparatus including: the system comprises a master cylinder, a relay valve, a wheel cylinder and any one of the anti-lock electromagnetic valves, wherein an inlet of the master cylinder is used for being connected with a pressure source pipeline, an outlet of the master cylinder and a pressure inlet of the relay valve are connected, a pipeline between the outlet of the master cylinder and the pressure inlet of the relay valve is provided with a pressure sensor, an inlet of the relay valve is used for being connected with the pressure source pipeline, an outlet of the relay valve is connected with an inlet of a first electromagnetic valve of the anti-lock electromagnetic valve, an outlet of the first electromagnetic valve is connected with the wheel cylinder, and the pressure sensor, the first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve of the anti-.
Optionally, the master cylinder has at least two outlets, each outlet of the master cylinder is connected to a relay valve, and a pressure sensor is correspondingly disposed in a pipeline between the outlets, each relay valve is connected to two anti-lock solenoid valves, and each anti-lock solenoid valve is correspondingly connected to a brake cylinder.
Optionally, the outlet of the first solenoid valve is connected to at least two slave cylinders.
Alternatively, the outlets of the second solenoid valve and the third solenoid valve of the anti-lock solenoid valve are respectively communicated with the atmosphere.
In another aspect of the embodiments of the present invention, there is provided a pneumatic brake system including: the brake device comprises an air compressor, an air storage cylinder and any one of the brake devices, wherein the air compressor is connected with the air storage cylinder through a pipeline, and an outlet of the air storage cylinder is respectively connected with a brake master cylinder inlet and a relay valve inlet of the brake device.
Optionally, the pneumatic braking system further includes a four-circuit protection valve, an inlet of the four-circuit protection valve is connected to an outlet of the air compressor, and an inlet of the air reservoir is correspondingly connected to an outlet of the four-circuit protection valve.
Optionally, the pneumatic braking system further comprises an air filter and a dryer, the air filter is connected with an inlet of the air compressor, and the dryer is connected between the air compressor and the four-circuit protection valve.
The embodiment of the invention has the beneficial effects that:
the embodiment of the invention provides an anti-lock electromagnetic valve which comprises a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve. The inlet of the first electromagnetic valve is used for being connected with the outlet of the relay valve, the outlet of the first electromagnetic valve is used for being connected with the brake cylinder, whether the relay valve is communicated with the brake cylinder or not can be controlled through the opening and closing control of the passage between the inlet and the outlet of the first electromagnetic valve, and the inlet of the second electromagnetic valve and the inlet of the third electromagnetic valve are respectively communicated with the outlet of the first electromagnetic valve. When the inlet and the outlet of the first electromagnetic valve are communicated and the second electromagnetic valve and the third electromagnetic valve are closed, the brake cylinder can normally realize pressurization under the control of the relay valve so as to drive the brake to brake; when the anti-lock action is carried out, the inlet and the outlet of the first electromagnetic valve are disconnected, the second electromagnetic valve is opened (the outlet and the inlet of the second electromagnetic valve are communicated), the brake cylinder can carry out anti-lock pressure relief through the outlet of the first electromagnetic valve and the inlet and the outlet of the second electromagnetic valve, and the anti-lock electromagnetic valve carries out anti-lock control on the brake cylinder which is correspondingly connected; when the normal brake release action is needed, the third electromagnetic valve is opened (the inlet and the outlet of the third electromagnetic valve are communicated), the brake cylinder can release the brake pressure release through the outlet of the first electromagnetic valve and the inlet and the outlet of the third electromagnetic valve, in the process, the pressure transfer medium in the brake cylinder does not need to be discharged to the relay valve through the first electromagnetic valve finally to release the pressure, the pressure transfer medium is directly discharged through the outlet of the third electromagnetic valve to release the pressure, the obstruction of the pressure transfer medium is small, the brake cylinder can be quickly released in the normal brake release process (in an anti-locking and non-activating state), and the pressure release rate is increased to reduce the delay of the brake release process.
The brake device provided by the embodiment of the invention comprises a brake master cylinder, a relay valve, a brake cylinder and the anti-lock electromagnetic valve. The pressure sensor is arranged on a pipeline between the master cylinder and the relay valve, when normal braking is relieved, the master cylinder is closed, so that the pressure in the pipeline between the master cylinder and the relay valve is zero, and the anti-lock system controller controls the third electromagnetic valve of the anti-lock electromagnetic valve to be opened according to signals of the pressure sensor, so that the brake cylinder can be quickly decompressed. The anti-lock electromagnetic valve is adopted in the braking device, the pressure sensor is controlled by signals, and the brake cylinder can be quickly decompressed when the brake is normally released, so that the brake releasing efficiency is improved, and the delay of the brake releasing process is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of an anti-lock solenoid valve according to an embodiment of the present invention;
FIG. 2 is a schematic view of a braking device provided in accordance with an embodiment of the present invention;
fig. 3 is a schematic view of a pneumatic brake system according to an embodiment of the present invention.
Icon: 110-a first solenoid valve; 120-a second solenoid valve; 130-a third solenoid valve; 210-a relay valve; 220-brake cylinder; 230-master cylinder; 240-a pressure sensor; 310-an air compressor; 320-an air cylinder; 330-four-circuit protection valve; 340-air filter; 350-a dryer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An embodiment of the present invention provides an anti-lock solenoid valve, as shown in fig. 1 and 2, including: the brake system comprises a first electromagnetic valve 110, a second electromagnetic valve 120 and a third electromagnetic valve 130, wherein an inlet of the first electromagnetic valve 110 is used for being connected with an outlet of a relay valve 210, an outlet of the first electromagnetic valve 110 is used for being connected with a brake cylinder 220, an inlet of the second electromagnetic valve 120 is communicated with an outlet of the first electromagnetic valve 110, an outlet of the second electromagnetic valve 120 is used for anti-lock pressure relief, an inlet of the third electromagnetic valve 130 is communicated with an outlet of the first electromagnetic valve 110, and an outlet of the third electromagnetic valve 130 is used for relieving brake pressure relief.
In practical applications, the first solenoid valve 110, the second solenoid valve 120, and the third solenoid valve 130 of the anti-lock solenoid valve may be disposed in the same housing for adaptive integrated arrangement.
First, the first, second, and third solenoid valves 110, 120, and 130 are controlled by an anti-lock brake system controller.
Second, the first solenoid valve 110 may be set to a normally open state, i.e., its inlet and outlet are kept in communication when the antilock controller does not control it. And the second and third solenoid valves 120 and 130 may be set to a normally closed state and opened only when the anti-lock controller controls them. By the arrangement, when the anti-lock electromagnetic valve breaks down, normal braking operation is not influenced, and braking failure of the braking device due to the failure of the anti-lock electromagnetic valve is avoided, so that the stability and the safety of the braking device are ensured.
The anti-lock solenoid valve may be used in a hydraulic brake system or a pneumatic brake system, and the outlet of the second solenoid valve 120 and the outlet of the third solenoid valve 130 may be provided according to a specific brake system. For example, when used in a hydraulic brake system, the outlet of the second solenoid valve 120 and the outlet of the third solenoid valve 130 may be connected to an oil drain circuit for pressure relief, respectively. When used in a pneumatic brake system, the outlet of the second solenoid valve 120 and the outlet of the third solenoid valve 130 may each be vented to atmosphere.
An anti-lock solenoid valve according to an embodiment of the present invention includes a first solenoid valve 110, a second solenoid valve 120, and a third solenoid valve 130. Wherein the inlet of the first solenoid valve 110 is used to connect with the outlet of the relay valve 210, the outlet of the first solenoid valve 110 is used to connect with the wheel cylinder 220, the communication between the relay valve 210 and the wheel cylinder 220 can be controlled by controlling the opening and closing of the passage between the inlet and the outlet of the first solenoid valve 110, and the inlet of the second solenoid valve 120 and the inlet of the third solenoid valve 130 are respectively communicated with the outlet of the first solenoid valve 110. When the inlet and the outlet of the first solenoid valve 110 are communicated, and the second solenoid valve 120 and the third solenoid valve 130 are closed, the brake cylinder 220 can normally realize charging under the control of the relay valve 210 to drive the brake to brake; when the anti-lock operation is performed, the inlet and the outlet of the first electromagnetic valve 110 are disconnected, and the second electromagnetic valve 120 is opened (the outlet and the inlet of the second electromagnetic valve 120 are communicated), so that the wheel cylinder 220 can perform anti-lock pressure relief through the outlet of the first electromagnetic valve 110 and the inlet and the outlet of the second electromagnetic valve 120, and the anti-lock electromagnetic valve performs anti-lock control on the wheel cylinder 220 connected correspondingly; when normal brake release action is required, the third electromagnetic valve 130 is opened (the inlet and the outlet of the third electromagnetic valve 130 are communicated), the brake cylinder 220 can release brake pressure release through the outlet of the first electromagnetic valve 110 and the inlet and the outlet of the third electromagnetic valve 130, in the process, a pressure transfer medium in the brake cylinder 220 is not required to be discharged from the first electromagnetic valve 110 to the relay valve 210 finally for pressure release, but is directly discharged through the outlet of the third electromagnetic valve 130 for pressure release, the obstruction of the pressure transfer medium is small, rapid pressure release can be performed on the brake cylinder 220 in the normal brake release process (in an anti-locking and non-activation state), and the pressure release rate is increased to reduce the delay of the brake release process.
Alternatively, as shown in FIG. 1, the outlet of the third solenoid valve 130 communicates with the outlet of the second solenoid valve 120.
The outlet of the third solenoid valve 130 is communicated with the outlet of the second solenoid valve 120, so that the length of a pipeline can be saved, the overall structure of the anti-lock electromagnetic valve is relatively compact, and the occupied space is saved.
Alternatively, the first solenoid valve 110, the second solenoid valve 120, and the third solenoid valve 130 are two-position and two-way valves, respectively.
The first, second, and third solenoid valves 110, 120, and 130 are respectively provided as two-position, two-way valves, which is simple in structure and facilitates compact arrangement of the anti-lock solenoid valve.
In another aspect of the embodiments of the present invention, there is provided a brake apparatus, as shown in fig. 2, including: the brake system comprises a master cylinder 230, a relay valve 210, a wheel cylinder 220 and any one of the anti-lock electromagnetic valves, wherein an inlet of the master cylinder 230 is used for being connected with a pressure source pipeline, a pipeline between an outlet of the master cylinder 230 and a pressure input port of the relay valve 210 is provided with a pressure sensor 240, an inlet of the relay valve 210 is used for being connected with the pressure source pipeline, an outlet of the relay valve 210 is connected with an inlet of a first electromagnetic valve 110 of the anti-lock electromagnetic valves, an outlet of the first electromagnetic valve 110 is connected with the wheel cylinder 220, and the pressure sensor 240, the first electromagnetic valve 110, a second electromagnetic valve 120 and a third electromagnetic valve 130 of the anti-lock electromagnetic valves are respectively in signal connection with an anti-lock system controller (not shown in the figure.
Wherein the wheel cylinder 220 is used for connecting with the brake to drive the brake for braking.
When the brake operation is performed, the master cylinder 230 is controlled to be opened, so that the pressure source can be connected with the pressure input port of the relay valve 210 through the master cylinder 230, the inlet and the outlet of the relay valve 210 are communicated, the pressure source is communicated with the wheel cylinder 220 sequentially through the relay valve 210 and the first electromagnetic valve 110 of the anti-lock electromagnetic valve, and the wheel cylinder 220 is pressurized to drive the brake to brake.
When normal brake release is performed, the pressure of a pipeline between the master cylinder 230 and the relay valve 210 is made zero by controlling the closing of the master cylinder 230, the relay valve 210 is closed under zero pressure input to disconnect the pressure source from the wheel cylinder 220, and the third electromagnetic valve 130 of the anti-lock electromagnetic valve is controlled by the anti-lock system controller to be opened according to the signal to rapidly release the pressure of the wheel cylinder 220, so that the brake release is realized.
When the anti-lock brake is performed, the working process of the brake device is the same as the principle of the conventional anti-lock brake process, and the detailed description is omitted here.
The brake device provided by the embodiment of the invention comprises a master cylinder 230, a relay valve 210, a wheel cylinder 220 and the anti-lock electromagnetic valve. A pressure sensor 240 is provided on a pipe between the master cylinder 230 and the relay valve 210, and when the brake is normally released, the master cylinder 230 is closed, so that the pressure in the pipe between the master cylinder 230 and the relay valve 210 is zero, and at this time, the third solenoid valve 130 of the anti-lock solenoid valve is controlled to be opened by the anti-lock system controller according to a signal of the pressure sensor 240, so that the sub-brake pump 220 can be rapidly depressurized. The brake device adopts the anti-lock electromagnetic valve and controls the anti-lock electromagnetic valve by using the signal of the pressure sensor 240, and can quickly release pressure of the brake cylinder 220 when the brake is normally released, thereby improving the efficiency of releasing the brake and reducing the delay of the brake releasing process.
Optionally, the master cylinder 230 has at least two outlets, each outlet of the master cylinder 230 is connected to one relay valve 210, a pressure sensor 240 is correspondingly disposed in a pipeline between the outlets, each relay valve 210 is connected to two anti-lock solenoid valves, and each anti-lock solenoid valve is correspondingly connected to the slave cylinder 220.
The master cylinder 230 is provided with a plurality of outlets, and each outlet is correspondingly connected with the relay valve 210, the anti-lock solenoid valve and the brake cylinder 220 to form an independent pipeline corresponding to each outlet, so that when a single pipeline fails, the normal work of other pipelines can be maintained, the probability of all failure of braking is reduced, and the stability and the safety of the braking device are improved.
Optionally, the outlet of the first solenoid valve 110 is connected to at least two slave cylinders 220.
The outlet of the first electromagnetic valve 110 is connected with at least two brake cylinders 220, the connected brake cylinders 220 can be the brake cylinders 220 connected with the brakes on the same side of the axle, and the arrangement does not influence the independent anti-lock control of each brake, so that the use number of the anti-lock electromagnetic valves can be saved, and the cost of the brake device is reduced.
When the brake apparatus is applied to a pneumatic brake system, alternatively, the outlets of the second solenoid valve 120 and the third solenoid valve 130 of the anti-lock solenoid valve are respectively communicated with the atmosphere.
In another aspect of the embodiments of the present invention, there is provided a pneumatic brake system, as shown in fig. 3, including: the air compressor 310 and the air reservoir 320 are connected by a pipeline, and the outlet of the air reservoir 320 is connected with the inlet of the brake master cylinder 230 and the inlet of the relay valve 210 of the brake device respectively.
The air pressure braking system adopts the braking device, so that the pressure relief rate in the wheel cylinder 220 can be increased when the brake is released, the residual pressure in the wheel cylinder 220 is reduced, and the delay of the brake releasing process is reduced.
Optionally, as shown in fig. 3, the pneumatic brake system further includes a four-circuit protection valve 330, an inlet of the four-circuit protection valve 330 is connected to an outlet of the air compressor 310, and an inlet of the air reservoir 320 is correspondingly connected to an outlet of the four-circuit protection valve 330.
Through setting up four return circuit protection valve 330, when master cylinder 230 has a plurality of imports and correspond respectively and connect a plurality of air receiver 320, every air receiver 320 can correspond with four return circuit protection valve 330's exit linkage, when the pipeline that one of them air receiver 320 corresponds breaks down, other pipelines that four return circuit protection valve 330 is connected can not be influenced, can improve this pneumatic braking system's security.
Alternatively, as shown in fig. 3, the pneumatic brake system further includes an air filter 340 and a dryer 350, the air filter 340 being connected to an inlet of the air compressor 310, and the dryer 350 being connected between the air compressor 310 and the four-circuit protection valve 330.
The air filter 340 and the dryer 350 respectively filter and dry the gas entering the air compressor 310 and the gas output by the air compressor 310, so that the blockage of dust and other impurities on pipelines and the corrosion of water vapor and other impurities on pipelines can be avoided.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An anti-lock electromagnetic valve, comprising: the brake system comprises a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve, wherein an inlet of the first electromagnetic valve is used for being connected with an outlet of a relay valve, an outlet of the first electromagnetic valve is used for being connected with a brake cylinder, an inlet of the second electromagnetic valve is communicated with an outlet of the first electromagnetic valve, an outlet of the second electromagnetic valve is used for anti-lock pressure relief, an inlet of the third electromagnetic valve is communicated with an outlet of the first electromagnetic valve, and an outlet of the third electromagnetic valve is used for relieving brake pressure relief.
2. An anti-lock solenoid valve according to claim 1, wherein an outlet of said third solenoid valve communicates with an outlet of said second solenoid valve.
3. The anti-lock electromagnetic valve according to claim 1 or 2, wherein the first electromagnetic valve, the second electromagnetic valve, and the third electromagnetic valve are each a two-position two-way valve.
4. A brake apparatus, comprising a master cylinder, a relay valve, a wheel cylinder and an anti-lock solenoid valve according to any one of claims 1 to 3, wherein an inlet of the master cylinder is adapted to be connected to a pressure source pipeline, an outlet of the master cylinder and a pressure input port of the relay valve are connected, and a pressure sensor is disposed on a pipeline between the outlets, the inlet of the relay valve is adapted to be connected to the pressure source pipeline, an outlet of the relay valve is connected to an inlet of a first solenoid valve of the anti-lock solenoid valve, an outlet of the first solenoid valve is connected to the wheel cylinder, and the pressure sensor and the first, second and third solenoid valves of the anti-lock solenoid valve are respectively in signal connection with an anti-lock system controller.
5. The brake apparatus according to claim 4, wherein the master cylinder has at least two outlets, each outlet of the master cylinder is connected to one relay valve, the pressure sensor is correspondingly arranged in a pipeline between the outlets, each relay valve is connected to two anti-lock solenoid valves, and each anti-lock solenoid valve is correspondingly connected to the slave cylinder.
6. A braking apparatus in accordance with claim 4 or 5, characterised in that the outlet of the first solenoid valve is connected to at least two of the brake cylinders.
7. A brake arrangement according to claim 4 or 5, wherein the outlets of the second and third solenoid valves of the anti-lock solenoid valve are each open to atmosphere.
8. A pneumatic brake system, comprising an air compressor, an air reservoir and a brake device as claimed in any one of claims 4 to 7, wherein the air compressor is connected with the air reservoir through a pipeline, and an outlet of the air reservoir is connected with a brake master cylinder inlet and a relay valve inlet of the brake device respectively.
9. The pneumatic brake system as recited in claim 8, further comprising a four-circuit protection valve, wherein an inlet of the four-circuit protection valve is connected to an outlet of the air compressor, and an inlet of the air reservoir is correspondingly connected to an outlet of the four-circuit protection valve.
10. The pneumatic brake system of claim 9, further comprising an air filter coupled to the inlet of the air compressor and a dryer coupled between the air compressor and the four-circuit protection valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911146560.7A CN110816501A (en) | 2019-11-20 | 2019-11-20 | Anti-lock electromagnetic valve, braking device and air pressure braking system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911146560.7A CN110816501A (en) | 2019-11-20 | 2019-11-20 | Anti-lock electromagnetic valve, braking device and air pressure braking system |
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| CN110816501A true CN110816501A (en) | 2020-02-21 |
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| CN201911146560.7A Pending CN110816501A (en) | 2019-11-20 | 2019-11-20 | Anti-lock electromagnetic valve, braking device and air pressure braking system |
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| CN109895755A (en) * | 2019-02-28 | 2019-06-18 | 广州瑞立科密汽车电子股份有限公司 | A kind of integrated type electrical braking system |
| CN209305559U (en) * | 2018-11-30 | 2019-08-27 | 潍柴动力股份有限公司 | A kind of combination valve |
| CN209410036U (en) * | 2018-04-28 | 2019-09-20 | 瑞立集团瑞安汽车零部件有限公司 | The commercial automobile-used integrated form air braking system of new energy and its vehicle |
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2019
- 2019-11-20 CN CN201911146560.7A patent/CN110816501A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209410036U (en) * | 2018-04-28 | 2019-09-20 | 瑞立集团瑞安汽车零部件有限公司 | The commercial automobile-used integrated form air braking system of new energy and its vehicle |
| CN109334705A (en) * | 2018-10-30 | 2019-02-15 | 瑞立集团瑞安汽车零部件有限公司 | A kind of trolleybus braking system and trolleybus |
| CN209305559U (en) * | 2018-11-30 | 2019-08-27 | 潍柴动力股份有限公司 | A kind of combination valve |
| CN109895755A (en) * | 2019-02-28 | 2019-06-18 | 广州瑞立科密汽车电子股份有限公司 | A kind of integrated type electrical braking system |
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