CN104044572A - Double-acting electronically-controlled pneumatic braking valve and vehicle braking system - Google Patents
Double-acting electronically-controlled pneumatic braking valve and vehicle braking system Download PDFInfo
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- CN104044572A CN104044572A CN201410285303.2A CN201410285303A CN104044572A CN 104044572 A CN104044572 A CN 104044572A CN 201410285303 A CN201410285303 A CN 201410285303A CN 104044572 A CN104044572 A CN 104044572A
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Abstract
The invention relates to the technical field of vehicle braking, in particular to a double-acting electronically-controlled pneumatic braking valve and a vehicle braking device. The double-acting electronically-controlled pneumatic braking valve is provided with a valve body. The valve body is provided with valve element cavities and further provided with an air inlet and an air supply port which correspond to the valve element cavities, valve elements are arranged in the valve element cavities, and the control ends of the valve elements are connected with the tail end of a braking pedal through link mechanisms respectively. The double-acting electronically-controlled pneumatic braking valve is characterized in that electronic control mechanisms are arranged between the control ends of the valve elements and the braking pedal and respectively comprise a transmission rod, a transmission spring, an armature and an electromagnetic coil, wherein the transmission rods are connected with the armatures through the transmission springs, and the electromagnetic coils are located below the armatures and act on the armatures. Compared with the prior art, the recovery rate of braking energy of an eclectic commercial vehicle can be effectively increased under the effect of electronically-controlled braking; besides, original mechanical braking still can be achieved under the condition of electrical failures, and therefore the braking safety is guaranteed.
Description
Technical field
The present invention relates to vehicle brake technology field, one can be completely compatible with traditional Pneumatic braking system specifically, not only can realize and under the effect of electric control braking, effectively improve the electric commercial vehicle braking energy percent recovery, and the in the situation that of electrical accident, still can realize original mechanical braking, ensure double acting electronic control pneumatic brake valve and the motor vehicle braking system of braking safety.
Background technology
As everyone knows, the braking of vehicle at present mainly adopts pneumatic brake system, this type of brake system mainly comprises two large divisions: the one, and source of the gas part, comprise air compressor, pressure regulating device, air tank, air-pressure gauge and safety valve etc., the 2nd, control part, comprise brake pedal, air brake valve, pilot piping, compressed air brake cylinder etc., wherein air brake valve can be two-chamber air brake valve, the valve body of two-chamber air brake valve is provided with two spool chambers, and correspondence is offered two groups of admission ports and air taking port, in spool chamber, be provided with spool, the control end of spool is connected with brake pedal through connecting rod mechanism.When work, air compressor passes through belt pulley or gear drive by driving engine, air is pressed into air tank, air tank internal gas pressure utilizes pressure regulating device to remain within the scope of certain pressure, and show by air-pressure gauge, air tank is by air brake valve and pipeline and forward and backward compressed air brake cylinder UNICOM, and by brake pedal end control air brake valve, when braking, the air pressure of setting up in compressed air brake cylinder should be directly proportional to pedal stroke, by little pedal pressing force and the large braking force of Stroke Control, completes braking.
Electronlmobil, refers to all or part of automobile of electric energy driving motor as power system of using.20 end of the centurys, along with becoming increasingly conspicuous of the energy and environmental problem, electronlmobil with its cleanliness without any pollution, energy efficiency is high and energy source is diversified, the advantage such as simple in structure and easy to maintenance becomes development of automobile new focus.But short and these two problems of fetch long price of continual mileage have seriously hindered the merchandizing of electronlmobil.
Regenerative Braking Technology has utilized the energy that is consumed in friction braking originally, can reduce the energy consumption of electronlmobil, improve the economic performance of automobile, therefore, in current electric vehicle engineering research, regenerative brake has become a kind of important technical that reduces energy consumption, improves continual mileage.Regenerative Braking Technology claims again regenerative feedback braking, its principle is, in the time of braking, the inertia energy of running car is passed to motor by driving system, because motor has invertibility, be that electrical motor can be transformed into generator operation under given conditions, therefore can in the time of braking, adopt the way of regenerative braking, make motor operate in generating state, with generation mode work, for power battery charging, realize the regeneration of braking energy, so just can reclaim the inertia energy that a part is considerable.Meanwhile, the motor braking moment of generation can apply braking to drive wheel by driving system again, produces braking force.
Traditional vehicle Pneumatic braking system adopts brake activation valve control brake-pressure.The control spool of brake activation valve adopts mechanical system to be connected with brake pedal, the braking pressure of brake activation valve output becomes fixed function relation with treadle effort, in the time that chaufeur is stepped on brake pedal, all wheels will produce mechanical friction braking force, and the kinetic energy of automobile is converted into heat energy and dissipates in friction.
Summary of the invention
The present invention is directed to the shortcoming and defect that prior art exists, having proposed one can be completely compatible with traditional Pneumatic braking system, not only can realize and under the effect of electric control braking, effectively improve the electric commercial vehicle braking energy percent recovery, and the in the situation that of electrical accident, still can realize original mechanical braking, ensure double acting electronic control pneumatic brake valve and the motor vehicle braking system of braking safety.
The present invention can reach by following measures:
A kind of double acting electronic control pneumatic brake valve, be provided with valve body, on valve body, offer spool chamber, in spool chamber, be provided with spool, on valve body, also offer the admission port corresponding with spool chamber and air taking port, the control end of spool is connected with brake pedal end through connecting rod mechanism respectively, it is characterized in that being also provided with between spool control end and brake pedal electrical control mechanism, described electrical control mechanism comprises drive link, driving spring, armature and magnet coil, wherein drive link is connected with armature through driving spring, and magnet coil is positioned at armature below and acts on armature.
The connecting rod mechanism being connected with brake pedal end with the control end of spool in the present invention comprises uploads lever, upper driving spring and lever, wherein uploading lever is connected with lever through uploading spring, the upper end of uploading lever is connected with brake pedal end, and lever end is connected with spool control end.
On valve body of the present invention, can offer two spool chambers arranged side by side, in spool chamber, be equipped with spool, the control end of two spools is connected with brake pedal end through connecting rod mechanism, wherein the lever in connecting rod mechanism adopts component lever, the end of component lever is connected with two spool control ends respectively, the front end of component lever through upper driving spring with upload lever and be connected; Correspondence is provided with two groups of electrical control mechanisms between two spool control ends and brake pedal respectively.
The present invention is provided with the pedal displacement sensor that is connected to brake pedal end.
The present invention also proposes a kind of motor vehicle braking system, be provided with controller, it is characterized in that being provided with above-mentioned double acting electronic control pneumatic brake valve, in controller, be provided with the solenoid controlled circuit being connected with electrical control mechanism in double acting electronic control pneumatic brake valve, the treater being connected with solenoid controlled circuit.
In controller of the present invention, be also provided with the pedal displacement signal acquisition circuit being connected with the pedal displacement sensor on double acting electronic control pneumatic brake valve.
The present invention in use, double acting electronic control pneumatic brake valve access motor vehicle braking system, in the time that chaufeur is stepped on brake pedal, controller calculates respectively car load according to the signal magnitude of pedal displacement sensor and brakes required drive wheel and non-driving wheel braking force, obtain the size of the regenerative braking moment having applied drive wheel by CAN bus from electric commercial vehicle power drive system simultaneously, according to the electric current of magnet coil in two proportion electro-magnets of difference control of the required total braking force of drive wheel and regenerative brake power, make two air taking port A of air brake valve, B exports different air pressure, the B mouth output pressure that leads to drive wheel reduces, and the A mouth output pressure that leads to non-driving wheel is constant, thereby make motor regenerative brake power and airbrasive braking force sum on drive wheel meet car load brake request,
In the time occurring that electrical malfunction or signal disturb, the electromagnetic force of coil is lost, and chaufeur is by deeply stepping on brake pedal, and treadle effort will be delivered on brake activation valve spool step by step by drive link, spring and armature, thereby operation brake activation valve, completes the output control of braking pressure.Whole process and traditional braking valve are basic identical, and small impact is only that the rigidity of running part reduces, and the pedal displacement that exporting same brake-pressure needs increases.
The present invention compared with prior art, have the following advantages: (1) can realize mechanical braking and two kinds of functions of electric control braking according to different controlled condition, in electric control braking process, electronic controller is according to the electric current of the signal magnitude control magnet coil of pedal position sensor, thus the electromagnetic force of control action on relief pressure valve cartridge; (2) driver pedal power can act on the output pressure of directly controlling A mouth on relief pressure valve cartridge by mechanical action end and spring thereof, meanwhile, ratio magnet coil and armature can be by electromagnetic force on brake activation valve spools, thereby realize double-acting spool control, the size of making a concerted effort to have determined air pressure output of dual force; (3) under electronic control module and suitable control method control, can independently control easily the compression air brake power of drive wheel, reclaim reserved braking force for possessing the new-energy automobile braking energy of regenerative brake ability, improve the braking energy percent recovery, (4) in addition, in the time of electrical malfunction, only adopt the pedal of chaufeur to carry out power operation braking, vehicle Pneumatic braking system still can normally be worked.
brief description of the drawings:
Accompanying drawing 1 is the structural representation of double acting electronic control pneumatic brake valve in the present invention.
Accompanying drawing 2 is structural representations of motor vehicle braking system in the present invention.
Reference numeral: brake pedal 1, pedal displacement sensor 2, upload lever 3, upper driving spring 4, lever 5, drive link 6, driving spring 7, armature 8, magnet coil 9, spool control end 10, valve body 11, controller 12, electrical motor 13, high pressure gas holder 14, electrokinetic cell 15, motor controller 16.
detailed description of the invention:
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in Figure 1, the present invention proposes a kind of double acting electronic control pneumatic brake valve, be provided with valve body 11, on valve body, offer spool chamber, in spool chamber, be provided with spool, on valve body 11, also offer the admission port corresponding with spool chamber and air taking port, the control end of spool is connected with brake pedal 1 end through connecting rod mechanism respectively, it is characterized in that being also provided with electrical control mechanism between spool control end 10 and brake pedal 1, described electrical control mechanism comprises drive link 6, driving spring 7, armature 8 and magnet coil 9, wherein drive link 6 is connected with armature 8 through driving spring 7, magnet coil 9 is positioned at armature 8 belows and acts on armature 8.
The connecting rod mechanism being connected with brake pedal 1 end with spool control end 10 in the present invention comprises uploads lever 3, upper driving spring 4 and lever 5, wherein uploading lever 3 is connected with lever 5 through uploading spring 4, the upper end of uploading lever 3 is connected with brake pedal 1 end, and lever 5 ends are connected with spool control end 10.
On valve body 11 of the present invention, can offer two spool chambers arranged side by side, in spool chamber, be equipped with spool, the control end of two spools is connected with brake pedal 1 end through connecting rod mechanism, wherein the lever 5 in connecting rod mechanism adopts component lever 5, the end of component lever 5 is connected with two spool control ends 10 respectively, the front end of component lever 5 through upper driving spring 4 with upload lever 3 and be connected; Correspondence is provided with two groups of electrical control mechanisms between two spool control ends and brake pedal 1 respectively.
The present invention is provided with the pedal displacement sensor 2 that is connected to brake pedal 1 end.
As shown in Figure 2, the present invention also proposes a kind of motor vehicle braking system, be provided with controller 12, it is characterized in that being provided with above-mentioned double acting electronic control pneumatic brake valve, in controller 12, be provided with the solenoid controlled circuit being connected with electrical control mechanism in double acting electronic control pneumatic brake valve, the treater being connected with solenoid controlled circuit.
In controller 12 of the present invention, be also provided with the pedal displacement signal acquisition circuit being connected with the pedal displacement sensor 2 on double acting electronic control pneumatic brake valve.
The present invention in use, double acting electronic control pneumatic brake valve access motor vehicle braking system, in the time that chaufeur is stepped on brake pedal 1, controller calculates respectively car load according to the signal magnitude of pedal displacement sensor 2 and brakes required drive wheel and non-driving wheel braking force, obtain the size of the regenerative braking moment having applied drive wheel by CAN bus from electric commercial vehicle power drive system simultaneously, according to the electric current of magnet coil in two proportion electro-magnets of difference control of the required total braking force of drive wheel and regenerative brake power, make two air taking port A of air brake valve, B exports different air pressure, the B mouth output pressure that leads to drive wheel reduces, and the A mouth output pressure that leads to non-driving wheel is constant, thereby make motor regenerative brake power and airbrasive braking force sum on drive wheel meet car load brake request,
In the time occurring that electrical malfunction or signal disturb, the electromagnetic force of coil is lost, and chaufeur is by deeply stepping on brake pedal, and treadle effort will be delivered on brake activation valve spool step by step by drive link, spring and armature, thereby operation brake activation valve, completes the output control of braking pressure.Whole process and traditional braking valve are basic identical, and small impact is only that the rigidity of running part reduces, and the pedal displacement that exporting same brake-pressure needs increases.
The present invention compared with prior art, have the following advantages: (1) can realize mechanical braking and two kinds of functions of electric control braking according to different controlled condition, in electric control braking process, electronic controller is according to the electric current of the signal magnitude control magnet coil of pedal position sensor, thus the electromagnetic force of control action on relief pressure valve cartridge; (2) driver pedal power can act on the output pressure of directly controlling A mouth on relief pressure valve cartridge by mechanical action end and spring thereof, meanwhile, ratio magnet coil and armature can be by electromagnetic force on brake activation valve spools, thereby realize double-acting spool control, the size of making a concerted effort to have determined air pressure output of dual force; (3) under electronic control module and suitable control method control, can independently control easily the compression air brake power of drive wheel, reclaim reserved braking force for possessing the new-energy automobile braking energy of regenerative brake ability, improve the braking energy percent recovery, (4) in addition, in the time of electrical malfunction, only adopt the pedal of chaufeur to carry out power operation braking, vehicle Pneumatic braking system still can normally be worked.
Claims (6)
1. a double acting electronic control pneumatic brake valve, be provided with valve body, on valve body, offer spool chamber, in spool chamber, be provided with spool, on valve body, also offer the admission port corresponding with spool chamber and air taking port, the control end of spool is connected with brake pedal end through connecting rod mechanism respectively, it is characterized in that being also provided with between spool control end and brake pedal electrical control mechanism, described electrical control mechanism comprises drive link, driving spring, armature and magnet coil, wherein drive link is connected with armature through driving spring, and magnet coil is positioned at armature below and acts on armature.
2. a kind of double acting electronic control pneumatic brake valve according to claim 1, it is characterized in that the connecting rod mechanism being connected with brake pedal end with the control end of spool comprises uploads lever, upper driving spring and lever, wherein uploading lever is connected with lever through uploading spring, the upper end of uploading lever is connected with brake pedal end, and lever end is connected with spool control end.
3. a kind of double acting electronic control pneumatic brake valve according to claim 1, it is characterized in that offering on described valve body two spool chambers arranged side by side, in spool chamber, be equipped with spool, the control end of two spools is connected with brake pedal end through connecting rod mechanism, wherein the lever in connecting rod mechanism adopts component lever, the end of component lever is connected with two spool control ends respectively, the front end of component lever through upper driving spring with upload lever and be connected; Correspondence is provided with two groups of electrical control mechanisms between two spool control ends and brake pedal respectively.
4. a kind of double acting electronic control pneumatic brake valve according to claim 1, is characterized in that being provided with the pedal displacement sensor that is connected to brake pedal end.
5. a motor vehicle braking system, be provided with controller, it is characterized in that being provided with double acting electronic control pneumatic brake valve as described in any one in claim 1-4, in controller, be provided with the solenoid controlled circuit being connected with electrical control mechanism in double acting electronic control pneumatic brake valve, the treater being connected with solenoid controlled circuit.
6. a kind of motor vehicle braking system according to claim 5, is characterized in that being also provided with in described controller the pedal displacement signal acquisition circuit being connected with the pedal displacement sensor on double acting electronic control pneumatic brake valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410285303.2A CN104044572A (en) | 2014-06-24 | 2014-06-24 | Double-acting electronically-controlled pneumatic braking valve and vehicle braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410285303.2A CN104044572A (en) | 2014-06-24 | 2014-06-24 | Double-acting electronically-controlled pneumatic braking valve and vehicle braking system |
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| CN104044572A true CN104044572A (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410285303.2A Pending CN104044572A (en) | 2014-06-24 | 2014-06-24 | Double-acting electronically-controlled pneumatic braking valve and vehicle braking system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106956671A (en) * | 2017-04-06 | 2017-07-18 | 许昌学院 | A kind of manual double spool brake valve |
| CN113734130A (en) * | 2021-11-08 | 2021-12-03 | 杭州非白三维科技有限公司 | Brake valve for new energy automobile braking system |
Citations (7)
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| GB1143454A (en) * | 1966-05-17 | 1969-02-19 | Magneti Marelli Spa | Improvements in or relating to pneumatic braking systems |
| JPH05124492A (en) * | 1991-11-08 | 1993-05-21 | Mitsubishi Heavy Ind Ltd | Operating device for brake |
| CN201240378Y (en) * | 2008-07-24 | 2009-05-20 | 浙江万安科技股份有限公司 | Electric control apparatus for foot brake valve of motor vehicle |
| CN101508282A (en) * | 2009-03-06 | 2009-08-19 | 同济大学 | Electrohydraulic composite braked brake valve for vehicle line control and control method thereof |
| CN101857019A (en) * | 2010-05-18 | 2010-10-13 | 河南昌通科技有限公司 | Two-stage stab-braking double-cavity parallel arrangement type brake master valve |
| CN102120450A (en) * | 2011-01-26 | 2011-07-13 | 瑞立集团瑞安汽车零部件有限公司 | Main brake valve with electronic-control pneumatic-control dual-circuit signals |
| CN203902532U (en) * | 2014-06-24 | 2014-10-29 | 哈尔滨工业大学（威海） | Double-acted electrically-controlled and pneumatic brake valve and vehicle brake device |
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2014
- 2014-06-24 CN CN201410285303.2A patent/CN104044572A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1143454A (en) * | 1966-05-17 | 1969-02-19 | Magneti Marelli Spa | Improvements in or relating to pneumatic braking systems |
| JPH05124492A (en) * | 1991-11-08 | 1993-05-21 | Mitsubishi Heavy Ind Ltd | Operating device for brake |
| CN201240378Y (en) * | 2008-07-24 | 2009-05-20 | 浙江万安科技股份有限公司 | Electric control apparatus for foot brake valve of motor vehicle |
| CN101508282A (en) * | 2009-03-06 | 2009-08-19 | 同济大学 | Electrohydraulic composite braked brake valve for vehicle line control and control method thereof |
| CN101857019A (en) * | 2010-05-18 | 2010-10-13 | 河南昌通科技有限公司 | Two-stage stab-braking double-cavity parallel arrangement type brake master valve |
| CN102120450A (en) * | 2011-01-26 | 2011-07-13 | 瑞立集团瑞安汽车零部件有限公司 | Main brake valve with electronic-control pneumatic-control dual-circuit signals |
| CN203902532U (en) * | 2014-06-24 | 2014-10-29 | 哈尔滨工业大学（威海） | Double-acted electrically-controlled and pneumatic brake valve and vehicle brake device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106956671A (en) * | 2017-04-06 | 2017-07-18 | 许昌学院 | A kind of manual double spool brake valve |
| CN106956671B (en) * | 2017-04-06 | 2019-04-12 | 许昌学院 | A kind of manual double spool brake valve |
| CN113734130A (en) * | 2021-11-08 | 2021-12-03 | 杭州非白三维科技有限公司 | Brake valve for new energy automobile braking system |
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Application publication date: 20140917 |