CN101580059A - Electronic control pneumatic brake system - Google Patents
Electronic control pneumatic brake system Download PDFInfo
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- CN101580059A CN101580059A CNA2009100996079A CN200910099607A CN101580059A CN 101580059 A CN101580059 A CN 101580059A CN A2009100996079 A CNA2009100996079 A CN A2009100996079A CN 200910099607 A CN200910099607 A CN 200910099607A CN 101580059 A CN101580059 A CN 101580059A
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- trailer
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- brake
- brake system
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Abstract
The invention discloses an electronic control pneumatic brake system which comprises a front wheel brake system and a rear wheel brake system that are arranged on a tractor, a trailer brake system positioned on a trailer, a tractor electronic control unit connected with the front wheel brake system and the rear wheel brake system, a brake valve provided with a sensor and an electromagnetic valve connected with a brake control pipeline of the brake valve; wherein, the brake valve provided with the sensor transmits voltage signals into the electromagnetic valve to be taken as control signals through the tractor electronic control unit for braking front and rear wheels of the tractor in advance. By utilizing the characteristic of rapid voltage signal transmission speed, the electronic control unit is connected with the brake valve; when control pressure in a pressure brake pipeline is not completely set up, the voltage signals generated on a brake pedal of the brake valve is rapidly transmitted into the electronic control unit, and the electronic control unit controls the electromagnetic valve to do the corresponding action, so that brake is generated, and brake response can be enhanced.
Description
Technical field
The present invention relates to brake system of car, a kind of specifically electronic control pneumatic brake system.
Background technology
In the existing commercial vehicle/comm..vehicle brake system, the Pneumatic braking systems that adopt more, compression air brake is to come control brake power with air flow valve of brake pedal control, glancing impact, lead to the air pressure of each brake cylinder according to the Stroke Control of pedal from air receiver, the air pressure in the brake piping makes the brake cylinder action, drives drg work, Pneumatic braking system can provide bigger braking force, does not also have the air-resistance phenomenon of hydraulic brake system.But, just because compression air brake adopts is pneumatic brake, therefore needing enough air pressure provides power for brake plate, and providing of air pressure needs the engine drive air compressor to come pressurized air, and with atmosphere storage in air receiver, when brake, import by the brake activation valve control gaseous, there is compressed air brake cylinder to implement last braking again, and pressure gas enters the front wheel brake air chamber by brake activation valve earlier, enters the relay valve of trailing wheel again, is controlled the brake application by spring air chamber braking of trailing wheel at last by relay valve, therefore hysteresis phenomenon can appear in whole process, obvious especially on some trailers especially, between its tractor truck and trailer also similar hysteresis phenomenon can appear, and the time is about 0.3-0.9S, can influence deceleration and stopping performance when serious, cause traffic accident.
Summary of the invention
Problem to be solved by this invention is exactly the shortcoming that exists in the existing Pneumatic braking system, and a kind of modern design is provided, and can effectively improve the electronic control pneumatic brake system of compression air brake response.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of electronic control pneumatic brake system, comprise the front wheel brake system that is located on the tractor truck, back wheel brake system and be located at trailer brake system on the trailer, it is characterized in that: also comprise and front wheel brake system and back wheel brake system bonded assembly tractor truck electronic control unit, the brake activation valve of belt sensor and the electromagnetic valve that links to each other with the control of braking pipeline of brake activation valve, the brake activation valve of described belt sensor passes to electromagnetic valve by the tractor truck electronic control unit with voltage signal and as control signal the front-wheel and the trailing wheel of tractor truck is braked in advance.
Further, described front wheel brake system comprise air receiver before brake activation valve with belt sensor is by braking energy supplying pipeline bonded assembly, with preceding air receiver by braking energy supplying pipeline bonded assembly front wheel electromagnetic valve and with front wheel electromagnetic valve by compressed air brake cylinder before the control of braking pipeline bonded assembly, this front wheel electromagnetic valve is the brake activation valve direct connection by control of braking pipeline and belt sensor also; Described back wheel brake system comprises air receiver after brake activation valve with belt sensor is by braking energy supplying pipeline bonded assembly, the other end of back air receiver connects relay valve and trailing wheel electromagnetic valve respectively by the braking energy supplying pipeline, be connected by the control of braking pipeline between relay valve and trailing wheel electromagnetic valve, this relay valve also is connected with the brake activation valve of belt sensor by the control of braking pipeline, and the other end of trailing wheel electromagnetic valve is connected with the back compressed air brake cylinder by the control of braking pipeline.
Further, described tractor truck electronic control unit is connected with electromagnetic valve by the trailer wiring harness connector, and the voltage signal on the tractor truck electronic control unit passes to electromagnetic valve by the voltage signal outlet line that is located on the trailer wiring harness connector.
Further, described trailer brake system comprise with the brake activation valve of belt sensor by control of braking pipeline bonded assembly trailer control valve, trailer control valve is got the gas joint by trailer and is connected emergency relay valve, emergency relay valve connects the trailer electromagnetic valve by the control of braking pipeline, emergency relay valve connects the trailer air receiver by the braking energy supplying pipeline, described trailer electromagnetic valve connects the trailer braking protection valve air chamber by the control of braking pipeline, and described trailer air receiver is connected with the trailer electromagnetic valve by the braking energy supplying pipeline.
Further, be provided with the trailer electronic control unit in the described trailer brake system, this trailer electronic control unit is connected in series with the tractor truck electronic control unit by the voltage signal incoming line, and the other end of trailer electronic control unit is connected with the trailer electromagnetic valve by the voltage signal outlet line.
Preferably, also be connected with auxiliary air receiver on the described trailer control valve.
Preferably, the brake activation valve of described belt sensor is a two-chamber tandem piston formula structure.
The invention has the advantages that: utilize the fast characteristics of voltage signal speed of transmission, electronic control unit is connected with brake activation valve, when control air pressure is not set up fully in the compression air brake pipeline, promptly the voltage signal that brake pedal produced on the brake activation valve is transferred to electronic control unit, and be controlled by an electronic control unit electromagnetic valve and make corresponding actions, thereby produce braking, promote braking response, and after control air pressure is set up, by voltage signal and the action of air pressure control signal common implementing solenoid control, effectively promote braking response; Also on the trailer brake system, the trailer electronic control unit is set simultaneously, reduces the lag time between trailer and tractor truck, improve the deceleration and stopping performance of car load comprehensively; And the present invention does not carry out large-scale redevelopment to original system, thereby design cost is low, voltage signal of the present invention can independent brake, also can work together in conjunction with the air pressure control signal in the existing system, can improve the vehicle braked performance to greatest extent.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing:
Fig. 1 is the connection diagram (solid line shown in the figure is the braking energy supplying pipeline, and dotted line is the control of braking pipeline, and the some slip is the voltage signal incoming line, and the two point slip is the voltage signal outlet line) of each parts in the brake system of the present invention and pipeline.
The specific embodiment
A kind of electronic control pneumatic brake system of the present invention, mainly comprise the front wheel brake system that is located on the tractor truck, back wheel brake system and be located at trailer brake system on the trailer, be provided with the brake activation valve 1 of tractor truck electronic control unit 5, belt sensor and the electromagnetic valve that links to each other with the control of braking pipeline of brake activation valve 1 in front wheel brake system and the back wheel brake system, the brake activation valve 1 of described belt sensor passes to electromagnetic valve by tractor truck electronic control unit 5 with voltage signal and as control signal the front-wheel and the trailing wheel of tractor truck is braked in advance.
As shown in Figure 1, the concrete structure of each parts and pipeline is as follows in the brake system of the present invention: the front wheel brake system comprise air receiver 2 before brake activation valve 1 with belt sensor is by braking energy supplying pipeline bonded assembly, with preceding air receiver 2 by braking energy supplying pipeline bonded assembly front wheel electromagnetic valve 21 and with front wheel electromagnetic valve 21 by compressed air brake cylinder 22 before the control of braking pipeline bonded assembly, this front wheel electromagnetic valve 21 is brake activation valve 1 direct connection by control of braking pipeline and belt sensor also; Described back wheel brake system comprises air receiver 3 after brake activation valve 1 with belt sensor is by braking energy supplying pipeline bonded assembly, the other end of back air receiver 3 connects relay valve 31 and trailing wheel electromagnetic valve 32 respectively by the braking energy supplying pipeline, 32 of relay valve 31 and trailing wheel electromagnetic valves are connected by the control of braking pipeline, this relay valve 31 also is connected with the brake activation valve 1 of belt sensor by the control of braking pipeline, and the other end of trailing wheel electromagnetic valve 32 is connected with back compressed air brake cylinder 33 by the control of braking pipeline.Tractor truck electronic control unit 5 is connected with electromagnetic valve by the trailer wiring harness connector, and the voltage signal on the tractor truck electronic control unit 5 passes to electromagnetic valve by the voltage signal outlet line that is located on the trailer wiring harness connector.Above-mentioned part is the transformation to the tractor truck brake system, promotes the braking response between tractor truck front-wheel and trailing wheel, reduces lag time.
Described trailer brake system comprises that brake activation valve 1 with belt sensor is by control of braking pipeline bonded assembly trailer control valve 4, trailer control valve 4 is got gas joint 41 by trailer and is connected emergency relay valve 42, emergency relay valve 42 connects trailer electromagnetic valve 43 by the control of braking pipeline, emergency relay valve 42 connects trailer air receiver 8 by the braking energy supplying pipeline, described trailer electromagnetic valve 43 is decided pilot piping by braking and is connected trailer braking protection valve air chamber 44, and described trailer air receiver 8 is connected with trailer electromagnetic valve 43 by the braking energy supplying pipeline.In trailer brake system, also be provided with trailer electronic control unit 6, trailer electronic control unit 6 is connected in series with tractor truck electronic control unit 5 by the voltage signal incoming line, and the other end of trailer electronic control unit 6 is connected with trailer electromagnetic valve 43 by the voltage signal outlet line.Also be connected with auxiliary air receiver 45 on the described trailer control valve 4.Above-mentioned part is the transformation to trailer brake system, increases the synchronism of tractor truck and trailer braking protection valve, improves the deceleration and stopping performance of car load comprehensively.
The brake activation valve 1 of belt sensor is a two-chamber tandem piston formula structure among the present invention, and when one of them loop et out of order lost efficacy, another loop still can work on, and has certain braking potential to guarantee automobile, thereby has improved running safety.
Principle of work of the present invention: when carrying out service brake, when chaufeur is stepped on the brake activation valve brake pedal, begin to produce control air pressure in the brake system, but this air pressure is not sufficient to open front wheel electromagnetic valve 21 and trailing wheel electromagnetic valve 32, the voltage signal that produces when the present invention steps on by brake pedal transfers to tractor truck electronic control unit 5, is that control signal makes front wheel electromagnetic valve 21 and trailing wheel electromagnetic valve 32 open a part by tractor truck electronic control unit 5 with voltage transitions, in advance front-wheel and trailing wheel are braked, when control air pressure is set up fully in the barometric brake circuit, produce air pressure signal and act on by the brake activation valve 1 of belt sensor and act on front wheel electromagnetic valve 21 respectively and trailing wheel electromagnetic valve 32 makes it to open fully, the voltage signal control process of this moment still can be proceeded, so just formed the two redundant of control system, be the action of voltage signal and air pressure control signal common implementing solenoid control, promote braking response thus.
The present invention also is provided with trailer electronic control unit 6 in trailer brake system, when emergency braking, brake pedal is stepped on fully, trailer electronic control unit 6 is transferred to trailer electromagnetic valve 43 with voltage signal, by 43 complete openings of trailer electronic control unit 6 control trailer electromagnetic valves, pressurized air in the braking energy supplying pipeline enters trailer braking protection valve air chamber 44 through trailer electromagnetic valve 43, produce specified braking force, effectively promote braking response, reduce the lag time of trailer braking protection valve and tractor truck braking, improve the deceleration and stopping performance of car load comprehensively.
Claims (8)
1, a kind of electronic control pneumatic brake system, comprise the front wheel brake system that is located on the tractor truck, back wheel brake system and be located at trailer brake system on the trailer, it is characterized in that: also comprise and front wheel brake system and back wheel brake system bonded assembly tractor truck electronic control unit (5), brake activation valve of belt sensor (1) and the electromagnetic valve that links to each other with the control of braking pipeline of brake activation valve, the brake activation valve of described belt sensor (1) passes to electromagnetic valve by tractor truck electronic control unit (5) with voltage signal and as control signal the front-wheel and the trailing wheel of tractor truck is braked in advance.
2, a kind of electronic control pneumatic brake system according to claim 1, it is characterized in that: described tractor truck electronic control unit (5) is connected with electromagnetic valve by trailer wiring harness connector (7), and the voltage signal on the tractor truck electronic control unit (5) passes to electromagnetic valve by the voltage signal outlet line that is located on the trailer wiring harness connector (7).
3, a kind of electronic control pneumatic brake system according to claim 1 and 2, it is characterized in that: described front wheel brake system comprise air receiver (2) before brake activation valve (1) with belt sensor is by braking energy supplying pipeline bonded assembly, with preceding air receiver (2) by braking energy supplying pipeline bonded assembly front wheel electromagnetic valve (21) and with front wheel electromagnetic valve (21) by compressed air brake cylinder (22) before the control of braking pipeline bonded assembly, this front wheel electromagnetic valve (21) is brake activation valve (1) direct connection by control of braking pipeline and belt sensor also; Described back wheel brake system comprises air receiver (3) after brake activation valve (1) with belt sensor is by braking energy supplying pipeline bonded assembly, the other end of back air receiver (3) connects relay valve (31) and trailing wheel electromagnetic valve (32) respectively by the braking energy supplying pipeline, be connected by the control of braking pipeline between relay valve (31) and trailing wheel electromagnetic valve (32), this relay valve (31) also is connected with the brake activation valve (1) of belt sensor by the control of braking pipeline, and the other end of trailing wheel electromagnetic valve (32) is connected with back compressed air brake cylinder (33) by the control of braking pipeline.
4, a kind of electronic control pneumatic brake system according to claim 1, it is characterized in that: described trailer brake system comprise with the brake activation valve (1) of belt sensor by control of braking pipeline bonded assembly trailer control valve (4), trailer control valve (4) is got gas joint (41) by trailer and is connected emergency relay valve (42), emergency relay valve (42) connects trailer electromagnetic valve (43) by the control of braking pipeline, emergency relay valve (42) connects trailer air receiver (8) by the braking energy supplying pipeline, described trailer electromagnetic valve (43) connects the trailer braking protection valve air chamber by the control of braking pipeline, and described trailer air receiver (8) is connected with trailer electromagnetic valve (43) by the braking energy supplying pipeline.
5, a kind of electronic control pneumatic brake system according to claim 4, it is characterized in that: be provided with trailer electronic control unit (6) in the described trailer brake system, this trailer electronic control unit (6) is connected in series with tractor truck electronic control unit (5) by the voltage signal incoming line, and the other end of trailer electronic control unit (6) is connected with trailer electromagnetic valve (43) by the voltage signal outlet line.
6, according to claim 4 or 5 described a kind of electronic control pneumatic brake systems, it is characterized in that: also be connected with auxiliary air receiver (45) on the described trailer control valve (4).
7, according to any described a kind of electronic control pneumatic brake system of claim 1 to 5, it is characterized in that: the brake activation valve of described belt sensor (1) is two-chamber tandem piston formula structure.
8, according to any described a kind of electronic control pneumatic brake system of claim 6, it is characterized in that: the brake activation valve of described belt sensor (1) is two-chamber tandem piston formula structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100996079A CN101580059B (en) | 2009-06-05 | 2009-06-05 | Electronic control pneumatic brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100996079A CN101580059B (en) | 2009-06-05 | 2009-06-05 | Electronic control pneumatic brake system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101580059A true CN101580059A (en) | 2009-11-18 |
| CN101580059B CN101580059B (en) | 2011-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100996079A Active CN101580059B (en) | 2009-06-05 | 2009-06-05 | Electronic control pneumatic brake system |
Country Status (1)
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| CN (1) | CN101580059B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102050104A (en) * | 2010-12-27 | 2011-05-11 | 威海广泰空港设备股份有限公司 | Electrically-controlled air braking device of flat-plate transport vehicle |
| CN104044571A (en) * | 2014-07-02 | 2014-09-17 | 江苏大学 | United brake system and method for combination vehicle |
| US20140343813A1 (en) * | 2011-07-04 | 2014-11-20 | CNH Industrial America, LLC | Method of and Apparatus for Braking a Tractor-Trailer Combination |
| CN104875732A (en) * | 2015-05-28 | 2015-09-02 | 江苏大学 | Brake control system and method for semi-trailer train |
| CN105196999A (en) * | 2015-09-29 | 2015-12-30 | 东风商用车有限公司 | Electronic control automatic braking system for trailer |
| 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 |
| CN104340198B (en) * | 2014-09-22 | 2017-01-11 | 中联重科股份有限公司 | Air pressure braking system for vehicle and vehicle |
| CN107878434A (en) * | 2017-11-30 | 2018-04-06 | 南京理工大学 | Electric controlled brake system for trailer |
| CN108327696A (en) * | 2017-01-18 | 2018-07-27 | 中车株洲电力机车研究所有限公司 | A kind of rubber tire train gas, electricity mixing control braking system |
| CN109501790A (en) * | 2018-10-24 | 2019-03-22 | 江苏大学 | The pressure retarded compensation of trailer braking protection valve and wheel slip combined control system and method |
| CN113119933A (en) * | 2021-04-06 | 2021-07-16 | 广州瑞立科密汽车电子股份有限公司 | Trailer line control unit and brake system |
-
2009
- 2009-06-05 CN CN2009100996079A patent/CN101580059B/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102050104A (en) * | 2010-12-27 | 2011-05-11 | 威海广泰空港设备股份有限公司 | Electrically-controlled air braking device of flat-plate transport vehicle |
| CN102050104B (en) * | 2010-12-27 | 2012-10-24 | 威海广泰空港设备股份有限公司 | Electrically-controlled air braking device of flat-plate transport vehicle |
| US9481346B2 (en) * | 2011-07-04 | 2016-11-01 | Cnh Industrial America Llc | Method of and apparatus for braking a tractor-trailer combination |
| US20140343813A1 (en) * | 2011-07-04 | 2014-11-20 | CNH Industrial America, LLC | Method of and Apparatus for Braking a Tractor-Trailer Combination |
| CN104044571B (en) * | 2014-07-02 | 2016-08-24 | 江苏大学 | A kind of truck combination associated braking system and method |
| CN104044571A (en) * | 2014-07-02 | 2014-09-17 | 江苏大学 | United brake system and method for combination vehicle |
| CN104340198B (en) * | 2014-09-22 | 2017-01-11 | 中联重科股份有限公司 | Air pressure braking system for vehicle and vehicle |
| CN104875732A (en) * | 2015-05-28 | 2015-09-02 | 江苏大学 | Brake control system and method for semi-trailer train |
| CN105196999A (en) * | 2015-09-29 | 2015-12-30 | 东风商用车有限公司 | Electronic control automatic braking system for trailer |
| 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 |
| CN108327696A (en) * | 2017-01-18 | 2018-07-27 | 中车株洲电力机车研究所有限公司 | A kind of rubber tire train gas, electricity mixing control braking system |
| CN107878434A (en) * | 2017-11-30 | 2018-04-06 | 南京理工大学 | Electric controlled brake system for trailer |
| CN109501790A (en) * | 2018-10-24 | 2019-03-22 | 江苏大学 | The pressure retarded compensation of trailer braking protection valve and wheel slip combined control system and method |
| CN109501790B (en) * | 2018-10-24 | 2021-04-20 | 江苏大学 | Trailer brake pressure delay compensation and wheel slip rate combined control system and method |
| CN113119933A (en) * | 2021-04-06 | 2021-07-16 | 广州瑞立科密汽车电子股份有限公司 | Trailer line control unit and brake system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101580059B (en) | 2011-07-13 |
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Denomination of invention: An electronically controlled pneumatic braking system Effective date of registration: 20200730 Granted publication date: 20110713 Pledgee: Diankou sub branch of Zhejiang Zhuji Rural Commercial Bank Co., Ltd Pledgor: ZHEJIANG VIE SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2020330000528 |
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