CN112172773A - Public road right non-wheel-rail guiding virtual rail train distributed brake control system - Google Patents
Public road right non-wheel-rail guiding virtual rail train distributed brake control system Download PDFInfo
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- CN112172773A CN112172773A CN202011012637.4A CN202011012637A CN112172773A CN 112172773 A CN112172773 A CN 112172773A CN 202011012637 A CN202011012637 A CN 202011012637A CN 112172773 A CN112172773 A CN 112172773A
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- Prior art keywords
- valve
- control
- brake
- wheel
- air
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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
- 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
- B60T17/228—Devices for monitoring or checking brake systems; Signal devices for railway vehicles
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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
-
- 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
- B60T8/1755—Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve
Abstract
The invention discloses a public road right non-wheel rail guide virtual rail train distributed brake control system, relates to a rail vehicle brake control system, and solves the problem that when the existing vehicle network fails, the train is easy to fold out of control, bend overturn and other risks. The mode is used as a backup mode of a normal network control mode of the vehicle, does not depend on network and electrical control, realizes train parking through gas circuit control, and greatly increases the reliability and the fault operation safety of a vehicle braking system. And under the condition that the train sliding control is invalid, the non-sliding control parking can be realized, and the highest priority of the vehicle parking is ensured.
Description
Technical Field
The invention relates to a brake control system of a railway vehicle, in particular to a distributed brake control system of a public road right non-wheel-rail guide virtual rail train.
Background
The virtual rail train guided by non-wheel-rail contact under the public right-of-way operation environment is a cross-border urban rail transit system integrating the advantages of buses and trams, the braking system of the virtual rail train has the characteristics of double-cab bidirectional driving, high-reliability redundancy safety and the like by combining the requirements of safety, reliability, performance standards and the like of the rail train, the basic limiting condition requirements are formed on the topology of the braking system, and meanwhile, some specificities of road vehicles need to be considered. Compared with a railway vehicle, a driver is more accurate and flexible in direction control, receives a braking instruction by virtue of a pedal, and directly influences an interface and an execution mechanism of a braking system by considering an instruction output mode, control and the like in an automatic tracking mode.
The distributed flexible control braking mode and the topology research of the virtual rail train braking system of non-wheel-rail contact guidance under the public road right operation environment are very necessary, on one hand, the braking timeliness of the train is realized, the braking distance is reduced, and on the other hand, the problems that when the braking system of the traditional road trailer vehicle adopts pure pneumatic control instruction to transmit braking, the braking force of a rear train is slowly applied, so that the risk that the train is easily out of control by folding, the curve overturn and the like are avoided.
Disclosure of Invention
The invention provides a public road right non-wheel rail guide virtual rail train distributed brake control system, aiming at solving the problem that when the existing vehicle brake system adopts pure pneumatic control instruction to transmit brake, the rear vehicle brake force is slowly applied, so that the risk of the train such as out-of-control folding, curve overturning and the like is easy to occur.
The public road right non-wheel rail guide virtual rail train distributed brake control system comprises an electric control brake master valve, a trailer valve, a common relay valve, a single channel module and an ABS electromagnetic valve;
the air outlet of the electric control brake master valve is connected with a control port of a trailer valve and a control port of a common relay valve, the control port of the trailer valve is connected with the control port of the common relay valve, an output port of the common relay valve is connected with a single-channel module, the single-channel module is connected with an ABS (anti-lock brake system) electromagnetic valve, the single-channel module is used for controlling the pressure of brake chambers of all wheels, the ABS electromagnetic valve is controlled through an anti-skid controller, the anti-skid controller collects speed signals of all the wheels through a wheel speed sensor and analyzes and calculates the speed signals, and when the situation that a certain wheel slides is judged, the braking force is adjusted through controlling the ABS electromagnetic valve.
The invention has the beneficial effects that: according to the distributed brake control system, the electric control brake master valve, the trailer valve, the common relay valve, the single-channel module and the ABS electromagnetic valve are arranged, so that the vehicle can be normally stopped, relieved and controlled in an anti-skid manner under the condition that a brake system network and an electric control loop are invalid, and the purpose of safe driving is achieved. The mode is used as a backup mode of a normal network control mode of the vehicle, does not depend on network and electrical control, realizes train parking through gas circuit control, and greatly increases the reliability and the fault operation safety of a vehicle braking system. And under the condition that the train sliding control is invalid, the non-sliding control parking can be realized, and the highest priority of the vehicle parking is ensured. Meanwhile, under the connecting action of the trailer valves, the synchronism of braking of all vehicles is realized, and the risk problems of out-of-control folding, curve overturning and the like caused by asynchronous braking in the braking process of the train are effectively reduced.
Drawings
Fig. 1 is a schematic structural diagram of a public road right non-wheel-rail guided virtual rail train distributed brake control system according to the present invention.
Fig. 2 is an application schematic block diagram of the public road right non-wheel-rail guided virtual rail train distributed brake control system according to the present invention.
Fig. 3 is a circuit diagram of a public road authority non-wheel-rail guided virtual rail train distributed brake control system according to the present invention.
Detailed Description
The embodiment is described with reference to fig. 1 to 3, and the public road authority non-wheel-rail-guided virtual rail train distributed brake control system is directed to a pneumatic control brake system when an electric control loop fails. The brake system comprises an electric control brake master valve 1, a trailer valve 2, a common relay valve 3, a single-channel module 4 and an ABS electromagnetic valve 5;
the electric control brake master valve 1 converts the angle of the pedal into an air pressure signal and transmits the air pressure signal out, so that the aim of outputting different braking forces by different pedal angle signals is fulfilled.
The trailer valve 2 is used for being connected with an air outlet of the electric control brake master valve 1, is used as control pressure, outputs pressure values with equal size by using pressure air in the air storage cylinder, and outputs the pressure values to the common relay valve 3 of each shaft.
And the output port of the common relay valve 3 is connected to the single-channel module 4 of the axle under the action of the air inlet and the control port.
The single-channel module 4 controls the pressure of the brake air chamber 6 of each wheel under the control of the pneumatic control loop. When the electric control circuit fails, the braking force of each wheel is the same, and the braking force cannot be adjusted correspondingly according to the change of the vehicle condition.
The ABS electromagnetic valve 5 is controlled by an anti-skid controller (ABS-ECU), the anti-skid controller (ABS-ECU) collects speed signals of each wheel through a wheel speed sensor, analyzes and calculates the speed signals, and when a certain wheel is judged to slide, the ABS electromagnetic valve 5 is controlled to adjust braking force, so that the sliding rate of the wheel is always kept in an ideal range, and the optimal braking effect is obtained.
The automatically controlled braking of train normal operating is prior, automatically controlled braking main valve 1 converts the angle of footboard into signal of telecommunication transmission to Central Control Unit (CCU), the CCU carries out analysis processes to information such as vehicle load, speed, auxiliary brake, calculate the required braking force of applying of each axle and send the instruction to single channel module 4, single channel module 4 is to this instruction information processing back, the inside air inlet of control module, the gas vent carries out the switching action, make the compressed air in the gas receiver 1 get into brake chamber 6 and carry out the braking, pressure sensor sets up the output at single channel module 4, the pressure to the delivery outlet is fed back.
In the distributed brake control system according to the embodiment, when the electronic control loop fails, the single-channel module 4 is switched from electronic control to pneumatic control, and the pressure of the output port is determined by the pneumatic control loop (as shown by a dotted line in the figure). Compressed air from an air source is respectively connected to two air inlets of the electric control brake master valve 1 through the air storage cylinder 1 and the air storage cylinder 2, an air outlet of the electric control brake master valve 1 is divided into two paths, the two paths are respectively connected to two control ports of the trailer valve 2, and one path is simultaneously connected to the common relay valve 3. The gas circuit connecting the trailer valve 2 finally connects the output port to a common relay valve of another vehicle. The common relay valves used by the front vehicle and the rear vehicle are the same, the output ports of the valves are respectively connected with the single-channel modules 4 of the wheels to be controlled under the action of the air inlet and the control port, and the single-channel modules 4 control the pressure of the brake chambers 6 of the wheels under the control of the pneumatic control loop. The common relay valve 3 and the air inlet of the trailer valve 2 are respectively connected with an air cylinder 3 and an air cylinder 4.
The control system valve components are arranged on a composition frame to form a modular compact design; compressed air is connected into a common relay valve 3 through a trailer valve 2 after being subjected to brake pressure grade control through an electric control brake master valve 1, and is connected into a single-channel module 4 of an axle under the action of an air inlet and a control port, and the single-channel module 4 controls the pressure of a wheel brake air chamber under the control of an air control loop. Meanwhile, the brake pressure can be processed by an ABS solenoid valve, so that the magnitude of the brake force when the vehicle slides and rolls is effectively adjusted. The detection joint is used for measuring the pressure value of the brake air chamber.
Claims (4)
1. Public road power non-wheel rail direction virtual rail train distributed brake control system, characterized by: the brake system comprises an electric control brake master valve (1), a trailer valve (2), a common relay valve (3), a single-channel module (4) and an ABS electromagnetic valve (5);
the gas outlet of automatically controlled main brake valve (1) is connected with the control port of trailer valve (2) and the control port of relay valve (3) commonly used, the control port of trailer valve (2) is connected with the control port of relay valve (3) commonly used, the delivery outlet of relay valve (3) commonly used is connected with single channel module (4), single channel module (4) are connected with ABS solenoid valve (5), single channel module (4) are used for controlling the pressure of wheel brake air chamber (6), through anti-skidding controller control ABS solenoid valve (5), the speed signal of every wheel is gathered through wheel speed sensor to the anti-skidding controller and analysis and calculation carries out, when judging that certain wheel takes place to slide, adjusts braking force through control ABS solenoid valve (5), realizes the braking of wheel and slides the control.
2. The distributed brake control system for public-rights non-wheeltrack guided virtual rail trains according to claim 1, wherein: the air outlet of the electric control brake master valve (1) is divided into two paths and respectively connected into two control ports of the trailer valve (2), wherein one path of the air outlet is simultaneously connected into a control port of the common relay valve (3), and an output control port of the trailer valve (2) is connected into a control port of the common relay valve of the next vehicle.
3. The distributed brake control system for public-rights non-wheeltrack guided virtual rail trains according to claim 1, wherein: an air inlet of the electric control brake master valve (1) is respectively connected with a first air storage cylinder and a second air storage cylinder; and compressed air of the air storage cylinder I simultaneously enters the brake air chamber (6) through the single-channel module (4) and the ABS electromagnetic valve (5).
4. The distributed brake control system for public-rights non-wheeltrack guided virtual rail trains according to claim 1, wherein: and the common relay valve (3) and the air inlet of the trailer valve (2) are respectively connected with a third air cylinder and a fourth air cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011012637.4A CN112172773A (en) | 2020-09-24 | 2020-09-24 | Public road right non-wheel-rail guiding virtual rail train distributed brake control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011012637.4A CN112172773A (en) | 2020-09-24 | 2020-09-24 | Public road right non-wheel-rail guiding virtual rail train distributed brake control system |
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| Publication Number | Publication Date |
|---|---|
| CN112172773A true CN112172773A (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011012637.4A Pending CN112172773A (en) | 2020-09-24 | 2020-09-24 | Public road right non-wheel-rail guiding virtual rail train distributed brake control system |
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| CN (1) | CN112172773A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208978829U (en) * | 2018-10-19 | 2019-06-14 | 中车株洲电力机车研究所有限公司 | A kind of electronic control pneumatic brake system of intelligence rail electric car |
| CN110194135A (en) * | 2019-05-21 | 2019-09-03 | 西安翔迅科技有限责任公司 | Radial type rubber tire trolleybus braking system suitable for 3 to 5 section compartments |
| CN110194134A (en) * | 2019-05-21 | 2019-09-03 | 西安翔迅科技有限责任公司 | More compartments even hang trolleybus braking system |
| CN209683674U (en) * | 2019-02-01 | 2019-11-26 | 西安翔迅科技有限责任公司 | A kind of braking system of tractor trailer train |
| CN111071228A (en) * | 2018-10-19 | 2020-04-28 | 中车株洲电力机车研究所有限公司 | Electric control air pressure braking system of intelligent rail electric car |
-
2020
- 2020-09-24 CN CN202011012637.4A patent/CN112172773A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208978829U (en) * | 2018-10-19 | 2019-06-14 | 中车株洲电力机车研究所有限公司 | A kind of electronic control pneumatic brake system of intelligence rail electric car |
| CN111071228A (en) * | 2018-10-19 | 2020-04-28 | 中车株洲电力机车研究所有限公司 | Electric control air pressure braking system of intelligent rail electric car |
| CN209683674U (en) * | 2019-02-01 | 2019-11-26 | 西安翔迅科技有限责任公司 | A kind of braking system of tractor trailer train |
| CN110194135A (en) * | 2019-05-21 | 2019-09-03 | 西安翔迅科技有限责任公司 | Radial type rubber tire trolleybus braking system suitable for 3 to 5 section compartments |
| CN110194134A (en) * | 2019-05-21 | 2019-09-03 | 西安翔迅科技有限责任公司 | More compartments even hang trolleybus braking system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210105 |
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| RJ01 | Rejection of invention patent application after publication |