CN109677386B - Line control air brake system capable of switching unmanned and manned - Google Patents
Line control air brake system capable of switching unmanned and manned Download PDFInfo
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- CN109677386B CN109677386B CN201910100134.3A CN201910100134A CN109677386B CN 109677386 B CN109677386 B CN 109677386B CN 201910100134 A CN201910100134 A CN 201910100134A CN 109677386 B CN109677386 B CN 109677386B
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- 238000012360 testing method Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- 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
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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
- B60T17/06—Applications or arrangements of reservoirs
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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
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/08—Brake-action initiating means for personal initiation hand actuated
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a line-control air brake braking system capable of switching between unmanned driving and manned driving, and belongs to the technical field of unmanned driving. Rear axle brake circuit: the rear air reservoir is connected with the foot brake valve and the first proportional valve, and the foot brake valve and the first proportional valve are respectively connected with the first control end and the second control end of the first differential relay valve; the air inlet and the air outlet of the first differential relay valve are connected with the rear air cylinder and the rear axle air chamber; the front axle brake circuit is similar to the rear axle brake circuit; parking brake circuit: the elastic air cylinder is connected with the hand brake valve and the manual control electromagnetic valve, and the hand brake valve and the manual control electromagnetic valve are respectively connected with the first control end and the second control end of the third differential relay valve; the air inlet and outlet of the third differential relay valve are connected with the elastic air cylinder, the front axle air chamber and the rear axle air chamber. According to the invention, the driving braking of the vehicle is controlled through the proportional valve controlled by the wire, the parking braking of the vehicle is controlled through the opening and closing of the manual electromagnetic valve, and the unmanned braking of the pneumatic brake controlled by the wire is realized, so that the driving safety of the automobile is improved.
Description
Technical Field
The invention relates to the technical field of unmanned operation, in particular to a wire control air brake system capable of switching between unmanned operation and manned operation.
Background
With the development of the automobile industry, the unmanned technology is more and more studied on automobiles, and at present, the unmanned technology is mostly studied by taking a passenger car as a carrier, and a passenger car braking system is hydraulically braked. The commercial trucks and certain special vehicles mainly adopt air brake braking, which is divided into service braking, parking braking, emergency braking and auxiliary braking functions, and the air brake braking also becomes a hot spot of recent researches, and no mature unmanned air brake technology exists at present.
Disclosure of Invention
In order to solve the technical problems, the invention provides a line-control air brake braking system capable of switching between unmanned driving and manned driving, which realizes unmanned braking of line-control air brake braking to improve the safety of automobile driving.
The invention is realized by the following technical scheme: a wire control air brake system capable of switching between unmanned driving and manned driving,
The air outlet of the rear air reservoir is connected with a first passage in the foot brake valve, and the other end of the first passage of the foot brake valve is connected with a first control end of the first differential relay valve; the air outlet of the rear air reservoir is also connected with a first proportional valve, and the first proportional valve is connected with the second control end of the first differential relay valve; the air outlet of the rear air reservoir is connected with the air inlet of the first differential relay valve, and the air outlet of the first differential relay valve is connected with the rear axle air chamber;
The air outlet of the front air reservoir is connected with a second passage in the foot brake valve, and the other end of the second passage of the foot brake valve is connected with a first control end of the second differential relay valve; the air outlet of the front air reservoir is also connected with a second proportional valve, and the second proportional valve is connected with a second control end of the second differential relay valve; the air outlet of the front air reservoir is connected with the air inlet of the second differential relay valve, and the air outlet of the second differential relay valve is connected with the front axle air chamber;
The air outlet of the elastic air reservoir is connected with a hand brake valve which is connected with the first control end of the third differential relay valve; the air outlet of the elastic air storage cylinder is also connected with a manual control electromagnetic valve which is connected with the second control end of the third differential relay valve; and an air outlet of the elastic air storage cylinder is connected with an air inlet of the third differential relay valve, and an air outlet of the third differential relay valve is connected with a front axle air chamber and a rear axle air chamber.
It is further: the manual control electromagnetic valve is connected with the inlet end of the two-way check valve, and the outlet end of the two-way check valve is connected with the second control end of the third differential relay valve; and an air outlet of the first differential relay valve is connected with the other inlet end of the two-way check valve.
The air compressor is connected with a combined air dryer which is connected with the rear air reservoir, the front air reservoir and the elastic air reservoir; an auxiliary air reservoir is arranged below the elastic air reservoir, and a test joint is connected between the auxiliary air reservoir and the combined air dryer.
And water drain valves are arranged on the rear air cylinder, the front air cylinder, the auxiliary air cylinder and the elastic air cylinder.
A rear gas storage pressure sensor is connected between the gas outlet of the rear gas storage cylinder and a first passage in the foot brake valve; and a front gas storage pressure sensor is connected between the gas outlet of the front gas storage cylinder and the second passage in the foot brake valve.
And a quick release valve is arranged in a pipeline between the air outlet of the third differential relay valve and the front axle air chamber.
The foot brake valve is connected with a foot brake lamp switch.
And the third differential relay valve is connected with a hand brake lamp switch.
The invention adds the proportional valve and the manual control electromagnetic valve in the original air brake system, wherein the proportional valve can control the output air pressure according to the electric signal, can replace the foot brake, and the manual control electromagnetic valve controls the opening and closing of the air circuit, which is equivalent to the hand brake.
Compared with the prior art, the invention has the beneficial effects that: the advantage that the differential relay valve has two control ports is utilized, the driving braking of the vehicle is controlled through the proportional valve controlled by a wire, and the parking braking of the vehicle is controlled through the opening and closing of the manual electromagnetic valve, so that the differential relay valve can be applied to more air brake vehicles which are not limited to 4 multiplied by 2 vehicles; the pneumatic braking system is simultaneously suitable for manual and automatic operation, and can realize unmanned braking of the brake-by-wire pneumatic brake to improve the safety of automobile driving.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
In the figure: 1. an air compressor; 2. a combined air dryer; 3. a bomb cylinder; 4. an auxiliary air cylinder; 5. a front air cylinder; 6. a rear air cylinder; 7. a water drain valve; 8. testing the joint; 9. a foot brake valve; 10. foot brake light switch; 11. a front gas storage pressure sensor; 12. a rear gas storage pressure sensor; 13-1, a first proportional valve; 13-2, a second proportional valve; 14-1, a first differential relay valve; 14-2, a second differential relay valve; 14-3, (schematic illustration not labeled in detail) a third differential relay valve; 15. a hand brake valve; 16. a hand brake light switch; 17. a quick release valve; 18. a front axle air chamber; 19. a rear axle air chamber; 20. a manual control electromagnetic valve; 21. a two-way check valve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, a switchable unmanned and manned brake-by-wire system is provided, wherein the air supply loop comprises an air compressor 1, a combined air dryer 2, an elastic air reservoir 3, an auxiliary air reservoir 4, a front air reservoir 5, a rear air reservoir 6, a water drain valve 7 and a test joint 8. The air compressor 1 is connected with a combined air dryer 2, and the combined air dryer 2 is connected with a rear air cylinder 6, a front air cylinder 5, an auxiliary air cylinder 4 and an elastic air cylinder 3. A test joint 8 is arranged in a connecting pipeline between the auxiliary air cylinder 4 and the combined air dryer 2. When in operation: the clean air is compressed by the air compressor 1, then the air is subjected to impurity and moisture removal by the combined air dryer 2, and finally is distributed to the bomb air reservoir 3, the auxiliary air reservoir 4, the front air reservoir 5 and the rear air reservoir 6, the loop provides sufficient air source for vehicle braking, and the air pressure of the air reservoirs is maintained between 0.8 and 1.05Mpa (adjustable for different vehicles).
Rear axle brake circuit:
The air outlet of the rear air reservoir 6 is connected with a first passage in the foot brake valve 9, and the other end of the first passage of the foot brake valve 9 is connected with the first control end of the first differential relay valve 14-1; a rear gas storage pressure sensor 12 is connected between the gas outlet of the rear gas storage cylinder 6 and a first passage in the foot brake valve 9; the foot brake valve 9 is connected with a foot brake light switch 10. The air outlet of the rear air reservoir 6 is connected with a first proportional valve 13-1, and the first proportional valve 13-1 is connected with the second control end of the first differential relay valve 14-1. The air outlet of the rear air reservoir 6 is connected with the air inlet of the first differential relay valve 14-1, and the air outlet of the first differential relay valve 14-1 is connected with the rear axle air chamber 19.
A manned control loop:
The control port 41 of the first differential relay valve 14-1 is formed by the rear air reservoir 6, the inlet 11 of the foot brake valve 9, the outlet 21, and the control port 41 of the first differential relay valve 14-1, so that a manned control loop of a vehicle rear axle brake loop is formed;
unmanned control circuit:
The unmanned control loop of the vehicle rear axle braking loop is formed by the rear air reservoir 6, the first proportional valve 13-1 inlet 1, the outlet 2 and the first differential relay valve 14-1 control port 42;
the first differential relay valve 14-1 is controlled by the control circuit of the manned and unmanned rear axle, one is controlled by the foot brake valve 9 for linear control, and the other is controlled by the first proportional valve 13-1 for linear control through an electric signal.
The driver performs the loop:
the manned execution loop of the vehicle rear axle braking loop is formed by the inlet 1-outlet 21 of the rear air storage cylinder 6-the first differential relay valve 14-1 and the air inlet of the rear axle air chamber;
Unmanned execution circuit:
The unmanned execution loop of the vehicle rear axle braking loop is formed by the inlet 1-outlet 21 of the rear air storage cylinder 6-the first differential relay valve 14-1 and the air inlet of the rear axle air chamber;
The manned and unmanned rear axle execution circuits are identical, except that the inlet 1→the outlet 21 from the first differential relay valve 14-1, one that controls the first differential relay valve 14-1 control port 41, and one that controls the first differential relay valve 14-1 control port 42.
Front axle brake circuit:
The air outlet of the front air reservoir 5 is connected with a second passage in the foot brake valve 9, and the other end of the second passage of the foot brake valve 9 is connected with a first control end of the second differential relay valve 14-2; a front gas storage pressure sensor 11 is connected between the gas outlet of the front gas storage cylinder 5 and the second passage of the foot brake valve 9. The air outlet of the front air reservoir 5 is connected with a second proportional valve 13-2, and the second proportional valve 13-2 is connected with the second control end of a second differential relay valve 14-2. The air outlet of the front air reservoir 5 is connected with the air inlet of the second differential relay valve 14-2, the air outlet 21 of the second differential relay valve 14-2 is connected with the front axle air chamber 18 on the right side, and the air outlet 22 of the second differential relay valve 14-2 is connected with the front axle air chamber 18 on the left side.
A manned control loop:
The front air reservoir 5, the inlet 11 of the foot brake valve 9, the outlet 22 and the control port 41 of the second differential relay valve 14-2 form a manned control loop of a front axle brake loop of the vehicle;
unmanned control circuit:
The front air reservoir 5, the inlet 1 of the second proportional valve 13-2, the outlet 2 and the control port 42 of the second differential relay valve 14-2 form an unmanned control loop of a front axle brake loop of the vehicle;
The control loops of the front axle of the manned and unmanned are controlled by the second differential relay valve 14-2, one is controlled by the foot brake valve 9 for linear control, and the other is controlled by the second proportional valve 13-2 for linear control through an electric signal.
The driver performs the loop:
The front air cylinder 5- & gt the inlet 1- & gt the outlet 21 and the outlet 22 of the second differential relay valve 14-2- & gt the air inlets of the left and right air chambers of the front axle form a manned execution loop of a front axle brake loop of the vehicle;
Unmanned execution circuit:
an unmanned execution loop of a vehicle front axle braking loop is formed by an inlet 1, an outlet 21 and an outlet 22 of a front air reservoir 5, a second differential relay valve 14-2 and an air inlet of a front axle air chamber;
the front axle execution circuits are the same, except that the inlet 1→the outlet 21, the outlet 22 of the second differential relay valve 14-2 are controlled by the control port 41 of the second differential relay valve 14-2, and the control port 42 of the second differential relay valve 14-2.
Parking brake circuit:
The air outlet of the air bomb cylinder 3 is connected with a hand brake valve 15, and the hand brake valve 15 is connected with the first control end of the third differential relay valve 14-3; the air outlet of the bomb air cylinder 3 is connected with a manual control electromagnetic valve 20, and the manual control electromagnetic valve 20 is connected with the second control end of the third differential relay valve 14-3. The third differential relay valve 14-3 is connected to a hand brake lamp switch 16. The air outlet of the elastic air cylinder 3 is connected with the air inlet of the third differential relay valve 14-3, the air outlet 21 of the third differential relay valve 14-3 is connected with the front axle air chamber 18, the air outlet 22 of the third differential relay valve 14-3 is connected with the rear axle air chamber 19, and the hand brake lamp switch 16 is arranged on the air path of the rear axle air chamber 19. A quick release valve 17 is arranged in a pipeline from the air outlet of the third differential relay valve 14-3 to the front axle air chamber 18.
Parking brake circuit for manned vehicle:
The front axle parking brake circuit of the manned vehicle is formed by an elastic air cylinder 3, an inlet 1 of a hand brake valve 15, an outlet 21, a control port 41 of a third differential relay valve 14-3, an outlet 21 and an outlet 22, wherein the outlet 21, a quick release valve and a front axle air chamber, and the outlet 22 and a rear axle air chamber form the rear axle parking brake circuit of the manned vehicle;
Unmanned parking brake circuit:
the unmanned vehicle front axle parking brake loop is formed by an elastic air cylinder 3, a manual control electromagnetic valve 20 inlet 1, an outlet 2, a third differential relay valve 14-3 control port 42, an outlet 21 port and an outlet 22 port, wherein the outlet 21 port, a front axle quick release valve and a front axle air chamber;
the piloted and unmanned parking brake circuit controls the third differential relay valve 14-3:
One is that the hand brake valve 15 is controlled by a person to be opened and closed, when the hand brake valve 15 is opened, the inlet 1 and the outlet 21 of the hand brake valve 15 are communicated, the inlet 1 and the outlet 21 and the outlet 22 of the third differential relay valve 14-3 are controlled to be communicated to form a parking brake release loop, when the hand brake valve 15 is closed, the air inlet 1 and the air outlet 21 of the hand brake valve 15 are closed, and the outlet 21 is communicated with the air outlet 3 to form a parking brake loop;
One is to control the manual electromagnetic valve 20 to be opened and closed through an electric signal, when the manual electromagnetic valve 20 is opened, the inlet 1 and the outlet 2 of the manual electromagnetic valve 20 are communicated, the inlet 1 and the outlet 21 and the outlet 22 of the third differential relay valve 14-3 are controlled to be communicated, a parking brake release loop is formed, when the manual electromagnetic valve 20 is closed, the air inlet 1 and the air outlet 2 of the manual electromagnetic valve 20 are closed, and the outlet 2 is communicated with the air outlet 3, so that the parking brake loop is formed.
Brake overload protection circuit:
The manual control electromagnetic valve 20 is connected with the inlet end of the two-way check valve 21, and the outlet end of the two-way check valve 21 is connected with the second control end of the third differential relay valve 14-3; the air outlet of the first differential relay valve 14-1 is connected with the other inlet end of the two-way check valve 21.
The protection loops for manned and unmanned are the same:
The overload protection loop of the brake is formed by the rear air reservoir 6, the inlet 1 of the first differential relay valve 14-1, the outlet 21, the two-way check valve and the control port 42 of the third differential relay valve 14-3, so that the simultaneous braking force generation of service braking and parking braking is prevented, and the overload of a mechanical transmission element caused by double braking is avoided.
Conditions of use of the manned and unmanned braking systems:
When a person drives, the inlet 1 and the outlet 2 of the manual control electromagnetic valve 20 are closed, and the inlet 1 and the outlet 2 of the first proportional valve 13-1 and the second proportional valve 13-2 are closed;
when the vehicle is not driven, the vehicle is controlled to perform the parking brake control by controlling the opening and closing of the manual solenoid valve by the electric signal, so as to ensure that the hand brake valve 15 is in a braking state.
The proportional valve and the manual control electromagnetic valve are added in the original air brake system, wherein the proportional valve can control the output air pressure according to the electric signal, the foot brake can be replaced, and the manual control electromagnetic valve controls the opening and closing of an air circuit, which is equivalent to the hand brake.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A switchable unmanned and manned drive-by-wire air brake system is characterized in that:
the air outlet of the rear air reservoir (6) is connected with a first passage in the foot brake valve (9), and the other end of the first passage of the foot brake valve (9) is connected with a first control end of the first differential relay valve (14-1); the air outlet of the rear air reservoir (6) is also connected with a first proportional valve (13-1), and the first proportional valve (13-1) is connected with the second control end of the first differential relay valve (14-1); the air outlet of the rear air reservoir (6) is connected with the air inlet of the first differential relay valve (14-1), and the air outlet of the first differential relay valve (14-1) is connected with the rear axle air chamber (19);
The air outlet of the front air reservoir (5) is connected with a second passage in the foot brake valve (9), and the other end of the second passage of the foot brake valve (9) is connected with a first control end of the second differential relay valve (14-2); the air outlet of the front air reservoir (5) is also connected with a second proportional valve (13-2), and the second proportional valve (13-2) is connected with a second control end of the second differential relay valve (14-2); the air outlet of the front air reservoir (5) is connected with the air inlet of the second differential relay valve (14-2), and the air outlet of the second differential relay valve (14-2) is connected with the front axle air chamber (18);
The air outlet of the air bomb cylinder (3) is connected with a hand brake valve (15), and the hand brake valve (15) is connected with the first control end of the third differential relay valve (14-3); the air outlet of the air spring and air storage cylinder (3) is also connected with a manual control electromagnetic valve (20), and the manual control electromagnetic valve (20) is connected with the second control end of the third differential relay valve (14-3); the air outlet of the elastic air cylinder (3) is connected with the air inlet of the third differential relay valve (14-3), and the air outlet of the third differential relay valve (14-3) is connected with the front axle air chamber (18) and the rear axle air chamber (19).
2. The switchable unmanned and manned air brake system of claim 1 wherein:
The manual control electromagnetic valve (20) is connected with the inlet end of the two-way check valve (21), and the outlet end of the two-way check valve (21) is connected with the second control end of the third differential relay valve (14-3); the air outlet of the first differential relay valve (14-1) is connected with the other inlet end of the two-way check valve (21).
3. The switchable unmanned and manned air brake system of claim 1 wherein: the air compressor (1) is connected with a combined air dryer (2), and the combined air dryer (2) is connected with the rear air storage cylinder (6), the front air storage cylinder (5) and the elastic air storage cylinder (3); an auxiliary air reservoir (4) is arranged below the air spring reservoir (3), and a test joint (8) is connected between the auxiliary air reservoir (4) and the combined air dryer (2).
4. A switchable unmanned and manned air brake system according to claim 3 wherein: the rear air cylinder (6), the front air cylinder (5), the auxiliary air cylinder (4) and the elastic air cylinder (3) are respectively provided with a water drain valve (7).
5. The switchable unmanned and manned air brake system of claim 1 wherein: a rear gas storage pressure sensor (12) is connected between the gas outlet of the rear gas storage cylinder (6) and a first passage in the foot brake valve (9); a front gas storage pressure sensor (11) is connected between the gas outlet of the front gas storage cylinder (5) and the second passage in the foot brake valve (9).
6. The switchable unmanned and manned air brake system of claim 1 wherein: a quick release valve (17) is arranged in a pipeline between an air outlet of the third differential relay valve (14-3) and the front axle air chamber (18).
7. The switchable unmanned and manned air brake system of claim 1 wherein: the foot brake valve (9) is connected with a foot brake lamp switch (10).
8. The switchable unmanned and manned air brake system of claim 1 wherein: the third differential relay valve (14-3) is connected with a hand brake lamp switch (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910100134.3A CN109677386B (en) | 2019-01-31 | 2019-01-31 | Line control air brake system capable of switching unmanned and manned |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910100134.3A CN109677386B (en) | 2019-01-31 | 2019-01-31 | Line control air brake system capable of switching unmanned and manned |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109677386A CN109677386A (en) | 2019-04-26 |
| CN109677386B true CN109677386B (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910100134.3A Active CN109677386B (en) | 2019-01-31 | 2019-01-31 | Line control air brake system capable of switching unmanned and manned |
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| Country | Link |
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| CN (1) | CN109677386B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113291270A (en) * | 2021-06-25 | 2021-08-24 | 徐州徐工矿业机械有限公司 | Unmanned brake hydraulic system of electric drive dumper |
| CN114810875A (en) * | 2022-05-24 | 2022-07-29 | 徐州重型机械有限公司 | Multi-mode air brake system and crane |
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| KR20070032585A (en) * | 2005-09-16 | 2007-03-22 | 현대자동차주식회사 | Air brake system |
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| CN103770770A (en) * | 2014-02-24 | 2014-05-07 | 南京理工大学 | Integrated automatic parking braking device |
| DE102014013756B3 (en) * | 2014-09-22 | 2016-02-18 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Electrical equipment of a vehicle with at least partially electrical braking and steering device with high availability |
| CN209505724U (en) * | 2019-01-31 | 2019-10-18 | 徐州徐工汽车制造有限公司 | Unmanned and manned line traffic control gas braking system can be switched in one kind |
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| CN109677386A (en) | 2019-04-26 |
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