CN106740786A - Emergency braking system - Google Patents
Emergency braking system Download PDFInfo
- Publication number
- CN106740786A CN106740786A CN201611241635.6A CN201611241635A CN106740786A CN 106740786 A CN106740786 A CN 106740786A CN 201611241635 A CN201611241635 A CN 201611241635A CN 106740786 A CN106740786 A CN 106740786A
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- Prior art keywords
- valve
- pressure
- air port
- port
- control
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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
- 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
- B60T13/683—Electrical control in fluid-pressure brake systems by electrically-controlled valves in pneumatic systems or parts thereof
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a kind of emergency braking system, it includes：Wind regime, for conveying total wind；Pressure limiting module, including controller, sensor, the first magnetic valve, the second magnetic valve, filter pressure relief valve, sensor, the first magnetic valve, the second magnetic valve are all connected with controller, and precompression is braked for pre-control；Trunk module, including total air port, braking air port, pre-control pressure port, atmospheric air port, the first movement valve element, the second movement valve element, valve seat, passage, diaphragm, pre-compressed spring, total air port, braking air port, pre-control pressure port, atmospheric air port, the first movement valve element, the second movement valve element, passage, diaphragm, pre-compressed spring are all connected with valve seat.Controlling of the present invention is strong, does not result in that emergency brake pressure is excessive or deficiency, and emergency brake pressure is set up will not be too fast or excessively slow, does not result in vehicle damage and operation security accident.
Description
Technical field
The present invention relates to a kind of brakes, more particularly to a kind of emergency braking system.
Background technology
Brake hard is typically all, it is necessary to real in a short period of time in traffic route or vehicle itself burst fortuitous event
Existing train slows down from high-speed travel state until stop, the speed that control train speed changes again in the process, it is too fast then
Passenger can be caused uncomfortable, severe patient results even in injury.The implementation of train brake hard is needed by viscous between steel wheel rail
To complete the applying of braking force of train, excessive emergency brake pressure can cause that brake force exceedes wheel rail adhesion, not only rise not
To the purpose of quick parking, however wheel sliding can be caused, train braking distance extension, or even wheel flat.
The brake hard control method of current track vehicle application, mainly carries out empty wagons or loaded vehicle with the break-make of magnetic valve
The selection of different braking pressure, or mechanical empty and load brake regulator carries out the emergency brake pressure output control under load change.
Both modes lack precise control and emergency brake pressure the applying speed to emergency brake pressure during brake hard
Control.
The controlling that the shortcoming of above-mentioned brake hard control is mainly reflected in emergency brake pressure is poor, easily causes urgent system
Dynamic pressure is excessive or deficiency, and emergency brake pressure sets up too fast or excessively slow, causes vehicle damage and operation security accident.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of emergency braking system, and its controlling is strong, do not result in tight
Anxious brake pressure is excessive or deficiency, and emergency brake pressure is set up will not be too fast or excessively slow, does not result in vehicle damage and operation is pacified
Full accident.
The present invention is to solve above-mentioned technical problem by following technical proposals：A kind of emergency braking system, its feature
It is that it includes：
Wind regime, for conveying total wind；
Pressure limiting module, is connected with wind regime, including controller, sensor, the first magnetic valve, the second magnetic valve, filter subtract
Pressure valve, sensor, the first magnetic valve, the second magnetic valve are all connected with controller, and precompression is braked for pre-control；
Trunk module, is connected with pressure limiting module, wind regime, including total air port, braking air port, pre-control pressure port, atmospheric air port, the
One movement valve element, second movement valve element, valve seat, passage, diaphragm, pre-compressed spring, total air port, braking air port, pre-control pressure port,
Atmospheric air port, the first movement valve element, the second movement valve element, passage, diaphragm, pre-compressed spring are all connected with valve seat, are made for being formed
Dynamic blast；
Current limliting module, is connected with trunk module, including bypass valve, choke valve, and bypass valve is connected with choke valve, realizes urgent
Braking impulsion control；
Checking cylinder, is connected, with current limliting module for producing brake pressure.
Preferably, a diameter of 25 millimeters of total air port.
Preferably, a diameter of 22 millimeters of the braking air port.
Preferably, a diameter of 12 millimeters of the pre-control pressure port.
Preferably, a diameter of 18 millimeters of the atmospheric air port.
Preferably, a diameter of 2 millimeters of the passage.
Positive effect of the invention is：Controlling of the present invention is strong, does not result in emergency brake pressure excessive or not
Foot, emergency brake pressure is set up will not be too fast or excessively slow, does not result in vehicle damage and operation security accident.
Brief description of the drawings
Fig. 1 is the theory diagram of emergency braking system of the present invention.
Fig. 2 is the theory diagram of pressure limiting module in the present invention.
Fig. 3 is the structural representation of trunk module in the present invention.
Fig. 4 is the theory diagram of current limliting module in the present invention.
Specific embodiment
Present pre-ferred embodiments are given below in conjunction with the accompanying drawings, to describe technical scheme in detail.
As shown in Figures 1 to 4, emergency braking system of the present invention includes：
Wind regime, for conveying total wind；
Pressure limiting module, is connected with wind regime, including controller, sensor, the first magnetic valve, the second magnetic valve, filter subtract
Pressure valve, sensor, the first magnetic valve, the second magnetic valve are all connected with controller, filter pressure relief valve, filter pressure relief valve and
One magnetic valve is connected；The air pressure that filter pressure relief valve comes to wind regime carries out the coarse adjustment of pre- governor pressure, and then controller is by connecing
The load signal of sensor is received, charge, exhaust control is carried out to the first magnetic valve, the second magnetic valve is inflated and pressurize control
System, eventually through the sensor feedback of the port of export, realizes the precise control to pre- governor pressure.
Trunk module, is connected with pressure limiting module, wind regime, including total air port 11, braking air port 12, pre-control pressure port 13, big
The movement movement of valve element 15, second of gas port 14, first valve element 16, valve seat 17, passage 18, diaphragm 19, pre-compressed spring 20, wherein always
Air port is connected with wind regime, and pre-control pressure port is connected with pressure limiting modular outlets, and braking air port is connected with current limliting module, in pre- pressure control
Promote second to move valve element upwards in the presence of power, after pushing up the rubber end face of upper first movement valve element, one is formed between them close
Envelope valve port, makes braking air port pressure isolated from atmosphere, continues to press on the first valve element, beats the first valve element and the sealing valve port of valve seat
Open, now total air port air pressure just can enter braking air port along the valve port opened, and form braking blast；
Current limliting module, is connected with trunk module, including bypass valve, choke valve, and bypass valve is connected in parallel with choke valve, front end
It is connected with the braking air port of trunk module, mainly by-passing valve road is used in the case of normal brake application, this loop is by going here and there in urgent
The one normal-closed electromagnetic valve control in loop, when brake hard, the magnetic valve dead electricity being connected with urgent loop on by-passing valve, bypass
Road disconnects, and now front braking air port pressure enters checking cylinder by choke valve, and this design can both meet braking usually will
Ask, the compression shock of (brake hard is bigger than full service braking pressure) when can well control brake hard again, realize urgent
Braking impulsion control；
Checking cylinder, is connected, with current limliting module for producing brake pressure.
A diameter of 25 millimeters of total air port, size is suitable, reduces cost.
A diameter of 22 millimeters of the braking air port, size is suitable, reduces cost.
A diameter of 12 millimeters of the pre-control pressure port, size is suitable, reduces cost.
A diameter of 18 millimeters of the atmospheric air port, size is suitable, reduces cost.
A diameter of 2 millimeters of the passage, size is suitable, reduces cost.
Particular embodiments described above, technical problem, technical scheme and beneficial effect to solution of the invention are carried out
Further describe, should be understood that and the foregoing is only specific embodiment of the invention, be not limited to
The present invention, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc., should be included in this
Within the protection domain of invention.
Claims (6)
1. a kind of emergency braking system, it is characterised in that it includes：
Wind regime, for conveying total wind；
Pressure limiting module, is connected with wind regime, including controller, sensor, the first magnetic valve, the second magnetic valve, filter pressure relief valve,
Sensor, the first magnetic valve, the second magnetic valve are all connected with controller, and filter pressure relief valve is connected with the first magnetic valve；Filtering
The air pressure that device pressure-reducing valve comes to wind regime carries out the coarse adjustment of pre- governor pressure, and then load-carrying of the controller by receiving sensor is believed
Number, charge, exhaust control is carried out to the first magnetic valve, the second magnetic valve is inflated and holding pressure control, eventually through the port of export
Sensor feedback, realize to the precise control of pre- governor pressure；
Trunk module, is connected with pressure limiting module, wind regime, including total air port, braking air port, pre-control pressure port, atmospheric air port, the first shifting
Movable valve plug, the second movement valve element, valve seat, passage, diaphragm, pre-compressed spring, wherein total air port is connected with wind regime, pre-control pressure port
It is connected with pressure limiting modular outlets, braking air port is connected with current limliting module, promotes second to move valve in the presence of pre- governor pressure
Core upwards, push up it is upper first movement valve element rubber end face after, between them formed one sealing valve port, make braking air port pressure with it is big
Air bound from, continue to press on the first valve element, open the sealing valve port of the first valve element and valve seat, now total air port air pressure just can edge
The valve port opened and enter braking air port, form braking blast；
Current limliting module, is connected with trunk module, including bypass valve, choke valve, and bypass valve is connected in parallel with choke valve, and front end is with
Connected after the braking air port of module, mainly by-passing valve road is used in the case of normal brake application, this loop is by going here and there in urgent loop
Normal-closed electromagnetic valve control, when brake hard, the magnetic valve dead electricity being connected with urgent loop on by-passing valve, bypass is disconnected
Open, now front braking air port pressure enters checking cylinder by choke valve, realize brake hard impulsion control；
Checking cylinder, is connected, with current limliting module for producing brake pressure.
2. emergency braking system as claimed in claim 1, it is characterised in that a diameter of 25 millimeters of total air port.
3. emergency braking system as claimed in claim 1, it is characterised in that a diameter of 22 millimeters of the braking air port.
4. emergency braking system as claimed in claim 1, it is characterised in that a diameter of 12 millimeters of the pre-control pressure port.
5. emergency braking system as claimed in claim 1, it is characterised in that a diameter of 18 millimeters of the atmospheric air port.
6. emergency braking system as claimed in claim 1, it is characterised in that a diameter of 2 millimeters of the passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611241635.6A CN106740786B (en) | 2016-12-29 | 2016-12-29 | Emergency braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611241635.6A CN106740786B (en) | 2016-12-29 | 2016-12-29 | Emergency braking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106740786A true CN106740786A (en) | 2017-05-31 |
| CN106740786B CN106740786B (en) | 2023-05-26 |
Family
ID=58923562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611241635.6A Active CN106740786B (en) | 2016-12-29 | 2016-12-29 | Emergency braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106740786B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2098424A2 (en) * | 2008-03-05 | 2009-09-09 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Electropneumatic braking device with load-corrected brake pressure regulation |
| CN102189986A (en) * | 2010-03-05 | 2011-09-21 | 上海庞丰机电科技有限公司 | High-reliability rail transit vehicle brake system |
| CN102700539A (en) * | 2012-05-30 | 2012-10-03 | 上海庞丰交通设备科技有限公司 | Multifunctional control type microcomputer straight-through electric control braking system |
| CN202806786U (en) * | 2012-09-25 | 2013-03-20 | 上海庞丰交通设备科技有限公司 | Modularization brake control unit |
| CN104309602A (en) * | 2014-10-16 | 2015-01-28 | 四川制动科技股份有限公司 | Relay valve with empty and loaded vehicle brake cylinder pressure adjusting function |
-
2016
- 2016-12-29 CN CN201611241635.6A patent/CN106740786B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2098424A2 (en) * | 2008-03-05 | 2009-09-09 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Electropneumatic braking device with load-corrected brake pressure regulation |
| CN102189986A (en) * | 2010-03-05 | 2011-09-21 | 上海庞丰机电科技有限公司 | High-reliability rail transit vehicle brake system |
| CN102700539A (en) * | 2012-05-30 | 2012-10-03 | 上海庞丰交通设备科技有限公司 | Multifunctional control type microcomputer straight-through electric control braking system |
| CN202806786U (en) * | 2012-09-25 | 2013-03-20 | 上海庞丰交通设备科技有限公司 | Modularization brake control unit |
| CN104309602A (en) * | 2014-10-16 | 2015-01-28 | 四川制动科技股份有限公司 | Relay valve with empty and loaded vehicle brake cylinder pressure adjusting function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106740786B (en) | 2023-05-26 |
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