CN1314560C - Synchronous air brake system controlled by voltage - Google Patents
Synchronous air brake system controlled by voltage Download PDFInfo
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- CN1314560C CN1314560C CNB2005100119191A CN200510011919A CN1314560C CN 1314560 C CN1314560 C CN 1314560C CN B2005100119191 A CNB2005100119191 A CN B2005100119191A CN 200510011919 A CN200510011919 A CN 200510011919A CN 1314560 C CN1314560 C CN 1314560C
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- 230000003111 delayed effect Effects 0.000 abstract 1
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- 206010039203 Road traffic accident Diseases 0.000 description 2
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- 238000005259 measurement Methods 0.000 description 2
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Abstract
The present invention relates to a voltage controlled synchronous coordination pneumatic brake system which provides a fire-new technical scheme that voltage signals are used for controlling the pneumatic brake. When a front wheel brakes, compressed air in a front air storage tank enters a front brake air chamber through a brake valve, a first voltage pressure sensor causes the output air pressure of the brake valve to be converted into voltage signals, the voltage signals is processed by a single chip computer intelligent controller, an electromagnetic proportional valve is controlled to output air pressure signals to control a relay valve to open, compressed air in a back air storage tank enters a back brake air chamber through the relay valve, and the brake of a back wheel is realized. The output end of the electromagnetic proportional valve is also provided with a second voltage pressure sensor which causes the output air pressure of the electromagnetic proportional valve to be converted into voltage signals to feed back to the controller to form a closed-loop control circuit, and the brake air pressure of the front brake air chamber and the brake air pressure of the back brake air chamber are coincident. Because the transmission of electrical signals can not be delayed, the present invention realizes the synchronous coordination brake in the real sense. The present invention can be widely applied to various large and middle size automobiles, trains and city light rail vehicles.
Description
Technical field
The present invention relates to compression air brake, particularly relate to length by the voltage The synchronized Coordinative Control apart from Pneumatic braking system.
Background technology
Big-and-middle-sized automobile, train, Urban Light Rail Vehicle etc. generally adopt compression air brake, but such as superimposed trailer, independent trailer etc. in when brake, often take place to collide before and after tractor truck and the trailer, upspring, whipping, fold, flop phenomenon, cause traffic accident.Trace it to its cause, drag is asynchronous, inharmonious before and after mainly causes.Existing compression air brake is that chaufeur is trampled braking vane unlatching brake valve, the gas that brake valve varies in size according to foot-operated dynamics direct ratio delivery pressure, and gas is clipped to by tracheorrhaphy and reaches front-wheel and trailing wheel.Gas directly enters the front-wheel air chamber and promotes connecting rod enforcement front wheel brake.Gas arrives the relay valve that is positioned at trailing wheel by tracheae, opens to connect back storage tank valve, and the gas of air receiver enters trailing wheel air chamber promotion connecting rod and implements the trailing wheel braking.Survey factually, the car that wheel base is 13 meters, the trailing wheel braking maneuver postpones 0.6 second than front-wheel,
Although relay valve has amplification, because of the asynchronous problem that causes still clearly.Front and back wheel braking time difference has caused front wheel brake, and trailing wheel is also rotating, because effect of inertia, trailer continues preshoot, so cause aforementioned collision, upspring, whipping, folding, flop phenomenon, cause traffic accident.
Patent documentation CN2631877Y Vehicle Electronic Control air braking systems of the prior art has disclosed the technical conceive of realizing automobile front and back wheel synchronous braking by electric transducer and electronic controller structure.But the document does not relate to and how to guarantee to make the front and back wheel braking pressure to be consistent.And the relation how document does not also set up input air pressure and output voltage signal to pressure sensor is described, thereby can not fundamentally instruct the realization of automobile front and back wheel synchronous braking.
Summary of the invention
The present invention is directed to technical matters of the prior art, provide a kind of and not only can realize front and back wheel synchronous braking and the synchronous air brake system controlled by voltage that the front and back wheel braking pressure is consistent, improve automobile brake perfrmance comprehensively, eliminated potential safety hazard greatly.
Technical conceive of the present invention is:
The present invention substitutes the transmission of traditional air pressure control signal with the transmission of voltage control signal between preceding brake unit of isolating mutually and back brake unit, with be arranged at described before the voltage signal that obtains of the first voltage pressure sensor on the brake unit air pressure bang path as control signal, because the voltage signal speed of transmission is fast, time difference in short range ignores, the brake control signal that forward and backward brake unit is received remains on synchronization substantially, has realized the front and back wheel synchronous braking to greatest extent; Simultaneously, utilize the controlled reset of voltage signal, the braking pressure of forward and backward compressed air brake cylinder is consistent, realize synchronous coordination braking truly.
Technical scheme of the present invention is:
A kind of synchronous air brake system controlled by voltage, brake unit and back brake unit before comprising, and with described before brake unit and back brake unit bonded assembly voltage control unit, described before brake unit comprise successively storage tank before the bonded assembly, brake valve and preceding compressed air brake cylinder; Described back brake unit comprises successively storage tank behind the bonded assembly, relay valve and back compressed air brake cylinder; Described voltage control unit by be arranged at described before the signal that obtains of the first voltage pressure sensor on the brake unit air pressure bang path as the control signal of the described back of control brake unit, via controller output control signal is given electromagnetic proportional valve, by electromagnetic proportional valve control relay valve; It is characterized in that: described voltage control unit also comprises a reactive circuit that the braking pressure of described forward and backward compressed air brake cylinder is consistent, described reactive circuit connects the mouth of controller and electromagnetic proportional valve, and this reactive circuit comprises that one gathers the second voltage pressure sensor of electromagnetic proportional valve mouth air pressure.
Described controller is the micro controller system intelligent controller.
The described first and second voltage pressure sensors are exported the voltage signal that the air pressure of 0～0.8MPa is converted into 0～10V in proportion to the micro controller system intelligent controller.
The delay of brake unit and back brake unit synchronous braking is in 0.01 second before described.
Technique effect of the present invention is:
The present invention proposes a kind of technical scheme of brand new voltage-Pneumatic braking system, the preceding brake unit and the back brake unit that utilize the voltage control technology to isolate are mutually realized synchronous braking control by voltage control unit, realize the front and back wheel synchronous braking to greatest extent, solved the technical matters that the intrinsic trailing wheel of traditional Pneumatic braking system lags behind and brakes.Voltage control unit of the present invention by be arranged at described before the voltage signal that obtains of the first voltage pressure sensor on the brake unit air pressure bang path as control signal, controller output control signal is given electromagnetic proportional valve, electric signal is reduced to corresponding air pressure signal like this, the breakdown action of electromagnetic proportional valve output pressure signal control relay valve has substituted the transmission of traditional air pressure control signal with the transmission of voltage control signal.Simultaneously, reactive circuit utilizes the controlled reset of voltage signal, forms closed control circuit, and the braking pressure of forward and backward compressed air brake cylinder is consistent.Because the voltage signal speed of transmission is fast, the time difference in short range ignores, and front and back wheel realizes synchronous coordination braking truly, thereby brakes asynchronous problem fundamentally solving front and back wheel, has eliminated potential safety hazard greatly.Experimental measurement is the result show, the car that wheel base is 13 meters, the trailing wheel braking maneuver that adopts technical solution of the present invention than the delay of front wheel brake action less than 0.01 second.
Technical solution of the present invention has made full use of the structure of existing Pneumatic braking system, does not need existing pipeline is carried out large-scale redevelopment, and connecting voltage control unit between forward and backward brake unit can finish, and has that cost is low, the obvious results characteristics.Voltage control unit of the present invention both can have been born the synchro control of front and back wheel alone, again can with traditional Pneumatic braking system co-operation, realize the two redundant of control of braking, improve the reliability of automobile brake control to greatest extent, thoroughly eliminate safe hidden trouble.
Obviously, the present invention also has more the functional character of in-depth and application prospect widely.For example, the present invention also can cooperate with the ABS anti-skid brake system that is provided with on the automobile and other safety system, the safety control of the wider meaning of realization.
The present invention can be widely used in the application of all kinds of big-and-middle-sized automobiles, train, Urban Light Rail Vehicle.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Mark lists as follows among the figure:
The 1-braking vane; Brake unit before the 2-; Storage tank before the 21-; The 22-brake valve; Compressed air brake cylinder before the 23-; The 3-voltage control unit; The 31-first voltage pressure sensor; The 32-controller; The 33-electromagnetic proportional valve; The 34-second voltage pressure sensor; Brake unit behind the 4-; Storage tank behind the 41-; The 42-relay valve; Compressed air brake cylinder behind the 43-; The 5-air compressor; 6-gas transmission pipeline; The 7-electrical signal transmission line.
The specific embodiment
Describe technical scheme of the present invention in detail below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present invention.As shown in Figure 1, synchronous air brake system controlled by voltage of the present invention is made up of brake unit 2, voltage control unit 3 and back brake unit 4 before the bonded assembly successively.Preceding brake unit 2 comprises the preceding storage tank 21 of bonded assembly, brake valve 22 and preceding compressed air brake cylinder 23 successively.When automobile driver depressed brake valve 22, the pressurized air of the preceding storage tank 21 that is communicated with air compressor 5 entered compressed air brake cylinder 23 by brake valve 22, and the action of front brake push rod promotes adjusting arm and brakes.Back brake unit 4 comprises successively storage tank 41 behind the bonded assembly, relay valve 42 and back compressed air brake cylinder 43.Relay valve 42 is opened according to the gas signal of input, and the pressurized air that is communicated with back storage tank 41 enters compressed air brake cylinder 43 by relay valve 42, and the action of rear brake push rod promotes adjusting arm and brakes.
Core of the present invention is to be provided with the voltage control unit 3 that guarantees the action of front and back brake synchronous coordination between preceding brake unit 2 and back brake unit 4, more particularly, described back brake unit 4 is controlled as control signal by the voltage signal that the first voltage pressure sensor 31 that is arranged on the described preceding brake unit 2 transmission of pressure paths obtains by voltage control unit 3.Voltage control unit 3 comprises the bonded assembly first voltage pressure sensor 31, micro controller system intelligent controller 32 and electromagnetic proportional valve 33 successively, the wherein said first voltage pressure sensor 31 is arranged on the mouth of brake valve 22, and electromagnetic proportional valve 33 is connected with relay valve 42.The output pressure parameter that the first voltage pressure sensor 31 is gathered brake valve 22, and to controller 32 output voltage signals; Controller 32 is exported control signals to electromagnetic proportional valve 33 after handling described voltage signal, and electric signal is reduced to corresponding air pressure signal like this, the breakdown action of electromagnetic proportional valve 33 output pressure signal control relay valves 42.
In the present embodiment, the first voltage pressure sensor 31 is converted into the voltage signal of 0～10V to controller 32 outputs in proportion with the air pressure of 0～0.8MPa.The first voltage pressure sensor 31 can be selected the dynamic air pressure sensing device highly sensitive, that response frequency is fast for use.
Micro controller system intelligent controller 32 adopts MCU, is made up of incoming signal treatment circuit and output driving circuit.The incoming signal treatment circuit receives 0～10V voltage signal of the first voltage pressure sensor, 31 outputs, and output driving circuit is according to instruction output voltage signal control electromagnetic proportional valve 33 actions of MCU.Electromagnetic proportional valve 33 is opened in proportion according to the voltage signal of controller 32 outputs and is regulated the valves the output pressure signal.
Because the voltage signal speed of transmission between the first voltage pressure sensor 31, controller 32 and the electromagnetic proportional valve 33 is very fast, time difference in short range ignores, so the action of relay valve 42 is constantly identical with the action of brake valve 22 basically constantly, so front and back wheel can realize synchronous braking.Experimental measurement is the result show, the car that wheel base is 13 meters, the trailing wheel braking maneuver that adopts technical solution of the present invention than the delay of front wheel brake action less than 0.01 second.
Be the delivery pressure of accuracy control electromagnetic proportional valve 33, and the braking pressure of forward and backward compressed air brake cylinder is consistent, the present invention also is provided with reactive circuit.Described reactive circuit comprises respectively and controller 32 and the electromagnetic proportional valve 33 mouth bonded assemblys second voltage pressure sensor 34.The output pressure parameter that the described second voltage pressure sensor 34 is gathered electromagnetic proportional valve 33, the voltage signal that air pressure is converted to 0～10V feeds back to controller 32.Controller 32 with the output voltage of the feedback voltage of the second voltage pressure sensor 34 and the first voltage pressure sensor 31 relatively after, eliminate error, output signal removes to control electromagnetic proportional valve 33 again, control by this closed loop circuit, the braking pressure of forward and backward compressed air brake cylinder is consistent, because the transmission of electric signal is not time-delay almost, make the present invention realize synchronous coordination braking truly.
Technical scheme of the present invention can be provided with multiple project organization according to actual needs.For example, for requiring the synchronous designing requirement fully of forward and backward brake unit, the present invention can adopt voltage control unit 3 to control forward and backward relay valve simultaneously, realizes absolute fully synchronous braking (being that front and back wheel braking nothing postpones).This technical scheme and structure flow process shown in Figure 1 are slightly different, but still do not break away from technical conceive of the present invention.
From the foregoing description as can be seen, technical solution of the present invention has made full use of the structure of existing Pneumatic braking system, do not need existing pipeline is carried out large-scale redevelopment, connecting voltage control unit 3 between forward and backward brake unit can finish, and has that cost is low, the obvious results characteristics.Obviously, voltage control unit 3 of the present invention both can have been born the synchro control of front and back wheel alone, again can with traditional Pneumatic braking system co-operation, realize the two redundant of control of braking, improve the reliability of automobile brake control to greatest extent.
Obviously, the present invention also has more the functional character of in-depth and application prospect widely.For example, the present invention also can cooperate with the ABS anti-skid brake system that is provided with on the automobile and other safety system, the safety control of the wider meaning of realization.
The present invention can be widely used in the brake system of all kinds of big-and-middle-sized automobiles, train, Urban Light Rail Vehicle and use.
Be the explanation of the specific embodiment of the invention only below, in any form the present invention do not made restriction.Should be pointed out that for a person skilled in the art, can also make a lot of relevant distortion and improvement according to guiding theory of the present invention, but these all will fall into protection scope of the present invention.
Claims (4)
1. synchronous air brake system controlled by voltage, brake unit and back brake unit before comprising, and with described before brake unit and back brake unit bonded assembly voltage control unit, described before brake unit comprise successively storage tank before the bonded assembly, brake valve and preceding compressed air brake cylinder; Described back brake unit comprises successively storage tank behind the bonded assembly, relay valve and back compressed air brake cylinder; Described voltage control unit by be arranged at described before the signal that obtains of the first voltage pressure sensor on the brake unit air pressure bang path as the control signal of the described back of control brake unit, via controller output control signal is given electromagnetic proportional valve, by electromagnetic proportional valve control relay valve; It is characterized in that: described voltage control unit also comprises a reactive circuit that the braking pressure of described forward and backward compressed air brake cylinder is consistent, described reactive circuit connects the mouth of controller and electromagnetic proportional valve, and this reactive circuit comprises that one gathers the second voltage pressure sensor of electromagnetic proportional valve mouth air pressure.
2. synchronous air brake system controlled by voltage as claimed in claim 1 is characterized in that, described controller is the micro controller system intelligent controller.
3. synchronous air brake system controlled by voltage as claimed in claim 2 is characterized in that, the described first and second voltage pressure sensors are exported the voltage signal that the air pressure of 0～0.8MPa is converted into 0～10V in proportion to the micro controller system intelligent controller.
4. synchronous air brake system controlled by voltage as claimed in claim 2 is characterized in that, the delay of described preceding brake unit and back brake unit synchronous braking is in 0.01 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100119191A CN1314560C (en) | 2005-06-13 | 2005-06-13 | Synchronous air brake system controlled by voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100119191A CN1314560C (en) | 2005-06-13 | 2005-06-13 | Synchronous air brake system controlled by voltage |
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| Publication Number | Publication Date |
|---|---|
| CN1699099A CN1699099A (en) | 2005-11-23 |
| CN1314560C true CN1314560C (en) | 2007-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100119191A Expired - Fee Related CN1314560C (en) | 2005-06-13 | 2005-06-13 | Synchronous air brake system controlled by voltage |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681561A (en) * | 2011-03-17 | 2012-09-19 | 上海全路通铁道科技发展有限公司 | Device and method for real-time control of train pipe volume pressure |
| CN106004847B (en) * | 2016-07-13 | 2019-03-19 | 徐州重型机械有限公司 | Air braking system and working truck |
| CN106274871A (en) * | 2016-08-31 | 2017-01-04 | 东科克诺尔商用车制动技术有限公司 | Commercial car owner's trailer air pressure deceleration of electrons control system |
| CN108216171B (en) * | 2016-12-21 | 2024-05-10 | 安百拓（南京）建筑矿山设备有限公司 | Brake system of underground diesel locomotive |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5207095A (en) * | 1991-10-11 | 1993-05-04 | Liberty Mutual Insurance Company | Vehicle braking technique evaluation apparatus |
| US5242216A (en) * | 1991-07-30 | 1993-09-07 | Sumitomo Electric Industries, Ltd. | Antilock brake control apparatus |
| CN2631877Y (en) * | 2003-07-22 | 2004-08-11 | 万安集团有限公司 | Electronic controlled gas pressure braker of vehicle |
-
2005
- 2005-06-13 CN CNB2005100119191A patent/CN1314560C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5242216A (en) * | 1991-07-30 | 1993-09-07 | Sumitomo Electric Industries, Ltd. | Antilock brake control apparatus |
| US5207095A (en) * | 1991-10-11 | 1993-05-04 | Liberty Mutual Insurance Company | Vehicle braking technique evaluation apparatus |
| CN2631877Y (en) * | 2003-07-22 | 2004-08-11 | 万安集团有限公司 | Electronic controlled gas pressure braker of vehicle |
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| CN1699099A (en) | 2005-11-23 |
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Owner name: BEIJING TINGYI BRAKE CO., LTD. Free format text: FORMER OWNER: WANG TINGYI Effective date: 20100108 |
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Effective date of registration: 20100108 Address after: Building M2, No. 5, zone 3, Hing Valley Economic Development Zone, Pinggu, Beijing Patentee after: Beijing Tingyi Brake Co., Ltd. Address before: No. 5, unit 3, Paradise West District, Pinggu District, Beijing Patentee before: Wang Tingyi |
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Addressee: Beijing Tingyi Brake Co., Ltd. Document name: Notification to Pay the Fees |
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