CN203753123U - Electric control brake device for car - Google Patents
Electric control brake device for car Download PDFInfo
- Publication number
- CN203753123U CN203753123U CN201420039285.5U CN201420039285U CN203753123U CN 203753123 U CN203753123 U CN 203753123U CN 201420039285 U CN201420039285 U CN 201420039285U CN 203753123 U CN203753123 U CN 203753123U
- Authority
- CN
- China
- Prior art keywords
- brake
- valve
- storage tank
- cylinder
- braking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Landscapes
- Braking Systems And Boosters (AREA)
Abstract
The utility model relates to an electric control brake device for a car and belongs to the technical field of car brake control. A second shuttle valve (8) is arranged in a gas channel between a brake execution mechanism and a pedal brake valve (7), one air inlet of the second shuttle valve (8) is connected with an air outlet of the pedal brake valve (7), and the other air inlet is connected with a brake air storage tank through an electric control pneumatic brake valve (12) which comprises an operation air cylinder (1) and a double-cavity brake valve (2). The operation air cylinder (1) is a two-pass air cylinder and is connected with the brake air storage tank through a solenoid valve group, an air outlet of the double-cavity brake valve (2) is connected with an air inlet of the second shuttle valve (8), and an air inlet is connected with the brake air storage tank. By means of the device, the light brake operation mode is changed, the action is fast, the control air usage amount is small, the energy consumption is little, the device is flexible and reliable to control, the control is accurate, and the brake stability is good.
Description
Technical field
The utility model relates to automobile brake control device, is particularly convenient to the automobile electrically-controlled brake equipment of one that Intelligent Safety System Design for Automobile uses, and belongs to automobile brake control technology field.
Background technology
Chaufeur is during to car brakeing, generally steps on brake pedal by pin and realizes own braking and be intended to.Chaufeur is controlled vehicle braking force by controlling brake-pedal travel.Along with the development of Vehicular intelligent technology, Intelligent Safety System Design for Automobile can be found collision risk before chaufeur is recognized dangerous situation, and travelling of vehicle carried out to pro-active intervention, realized car brakeing, with the driving safety of support vehicles.Meanwhile, the intervention on vehicle and braking do not affect the normal driving of chaufeur yet, and Intelligent Safety System Design for Automobile only just can intervene and brake under necessary situation.
Referring to Fig. 1, China Patent Publication No.: CN201511953U, open day: on 06 23rd, 2010, utility model name was called: " automobile brake active control device ", comprises the brake actuator 12 being connected with braking storage tank by Foot braking valve 7; Wherein, in gas circuit between described brake actuator 12 and Foot braking valve 7, be provided with the second shuttle valve 8, the air extractor duct of the first admission port b1 access Foot braking valve 7 of this second shuttle valve, the second admission port a1 of this second shuttle valve is connected with braking storage tank, and in its gas circuit, is connected to and can makes two these electric controlled pneumatic brake valve that are switched on or switched off; The operation cylinder 1 of described electric controlled pneumatic brake valve 12 is connected with braking storage tank, and in its gas circuit, is connected to the control electromagnetic valve group that can control this gas path on-off.The design of this braking active control device does not change or affects the brake control mode of chaufeur.In the situation that only having chaufeur braking, chaufeur is by stepping on the pedal of Foot braking valve 7, and Foot braking valve 7 is controlled respectively the atmospheric pressure that of front wheel brake storage tank 10 and trailing wheel braking storage tank 11 according to the dynamics of chaufeur pedal.At this moment the air extractor duct pressure of electric controlled pneumatic brake valve 12 is 0, and the delivery pressure of Foot braking valve 7 is greater than the delivery pressure of dual-chamber brake 2, and due to the effect of two the second shuttle valves 8, Foot braking valve 7 is controlled car brakeing.In like manner do not step on brake pedal and vehicle need to brake time at chaufeur, vehicle active control system sends braking instruction to electric controlled pneumatic brake valve 12, and electric controlled pneumatic brake valve 12 is controlled respectively the output gas port pressure for front-wheel and trailing wheel braking according to braking control command by its operation cylinder 1 and dual-chamber brake 2.At this moment the air extractor duct pressure of Foot braking valve 7 is 0, and the delivery pressure of dual-chamber brake 2 is greater than the delivery pressure of Foot braking valve 7, and due to the effect of two the second shuttle valves 8, electric controlled pneumatic brake valve 12 is controlled car brakeing.If dual-chamber brake 2 and the equal delivery pressure of Foot braking valve 7, that is to say that chaufeur and vehicle active control system all send braking instruction, and act on respectively two the second shuttle valves 8, control car brakeing by dual-chamber brake 2 and the larger side of Foot braking valve 7 delivery pressures.Because electric controlled pneumatic brake valve 12 and Foot braking valve 7 can work alone, therefore both brake mode are independent of each other.Because the dual-chamber brake 2 in electric controlled pneumatic brake valve 12 and the dual-chamber brake on Foot braking valve 7 can be identical, therefore they are identical to the braking effect of vehicle, both sides are independent of each other, and have realized the seamless link between electric control braking and chaufeur braking.Can realize the various brake operatings of chaufeur, but when gently braking of realization (part braking, non-full application of brake), control is difficult, speed of response is lower, energy consumption is larger.In fact, at Intelligent Safety System Design for Automobile during in the pro-active intervention to car brakeing, only need to realize do not brake, three kinds of patterns of light braking of full application of brake and certain specific dynamics.
Summary of the invention
The purpose of this utility model is more difficult on controlling for the pattern of the light braking of existing automobile primary dynamic control device realization, the defect that energy consumption is larger and deficiency, provide one can realize light braking convenient, and can between three, can carry out the automobile electrically-controlled brake equipment switching fast, this device can be realized Intelligent Safety System Design for Automobile to car brakeing pro-active intervention, have that mode is simple, manoeuvrable, action response is fast, the advantage effective, energy consumption is lower is controlled in braking.
For achieving the above object, technical solution of the present utility model is: a kind of automobile electrically-controlled brake equipment, comprise Foot braking valve, braking storage tank and brake actuator, in gas circuit between described brake actuator and Foot braking valve, be provided with the second shuttle valve, the air extractor duct of described the second shuttle valve connects brake actuator, an admission port of the second shuttle valve is connected with the air extractor duct of Foot braking valve, another admission port of the second shuttle valve with through electric controlled pneumatic brake valve with braking storage tank be connected, described braking storage tank is divided into front wheel brake storage tank and trailing wheel braking storage tank, described electric controlled pneumatic brake valve is by operating cylinder and dual-chamber brake is formed by connecting, described operation cylinder connects front wheel brake storage tank and trailing wheel braking storage tank by electromagnetic valve group, the air extractor duct of described dual-chamber brake connects another admission port of the second shuttle valve, the admission port of dual-chamber brake connects front wheel brake storage tank and trailing wheel braking storage tank, described operation cylinder is double stroke cylinder, the external part of described double stroke cylinder is connected with the control end of dual-chamber brake, the gas port of double stroke cylinder connects front wheel brake storage tank and trailing wheel braking storage tank by electromagnetic valve group.
Described double stroke cylinder is made up of the front air cylinder with external part and the exhaust hood that is connected on after front air cylinder, the forced stroke of described front air cylinder is equal to or greater than the forced stroke of Foot braking valve, and the forced stroke of described exhaust hood is 1/4～1/2 of front air cylinder forced stroke.
The forced stroke of described exhaust hood is 1/3 of front air cylinder forced stroke.
Between described electromagnetic valve group and front wheel brake storage tank, trailing wheel braking storage tank, be provided with the first shuttle valve, two admission ports of the first shuttle valve are communicated with two storage tanks respectively, and the air extractor duct of the first shuttle valve is communicated with electromagnetic valve group.
Described electromagnetic valve group comprises three electric control reversing valves, described electric control reversing valve is normally closed two position three-way valve, the admission port of three electric control reversing valves is connected in parallel on the air extractor duct of the first shuttle valve, the air extractor duct of three electric control reversing valves is communicated with respectively after gas port after the rear cylinder on double stroke cylinder, front cylinder gas port before gas port and front cylinder, before rear cylinder on described double stroke cylinder, gas port is gas port before being communicated with atmosphere or being communicated with front cylinder, and the gas returning port of three electric control reversing valves is all communicated with atmosphere.
Two admission ports of described dual-chamber brake connect respectively front wheel brake storage tank and trailing wheel braking storage tank, the air extractor duct that is communicated with front wheel brake storage tank on described dual-chamber brake is connected on two admission ports of second shuttle valve with the air extractor duct that is communicated with front wheel brake storage tank on Foot braking valve, the air extractor duct that is communicated with trailing wheel braking storage tank on described dual-chamber brake is connected on two admission ports of another the second shuttle valve with the air extractor duct that is communicated with trailing wheel braking storage tank on Foot braking valve, the air extractor duct of two the second shuttle valves is all connected with the admission port of brake actuator.
On described Foot braking valve, contact the valve body of pedal, structurally identical with dual-chamber brake.
Described brake actuator comprises front and back wheel brake actuator and trailer braking protection valve actuating unit.
Compared with prior art, the beneficial effects of the utility model are:
1. change operation cylinder into double stroke cylinder, by handling respectively the action of former and later two cylinders in double stroke cylinder, make the utility model can correspondingly realize full application of brake, gently braking and three kinds of operation modes of brakeless, handle simple, the pattern of electric control braking is various, manoeuvrable is reliable, controls accurately, and braking stationarity is good.Owing to having changed the operation mode of light braking, action is fast, controls gas consumption little, and energy consumption is less.
2. electromagnetic valve group adopts the electric control reversing valve of three normally closed two-position three ways in parallel, simple in structure, cost is low, the gas returning port of electric control reversing valve is communicated with atmosphere, corresponding of the operation of various braking modes needs an electric control reversing valve events, convenient to the control of the each admission port of double stroke cylinder, makes being active in one's movements of forward and backward cylinder, fast response time, operates steadily.
3. the valve body structure of Foot braking valve is identical with the dual-chamber brake structure in electropneumatic valve group, and dual-chamber brake is connected front wheel brake storage tank and trailing wheel braking storage tank respectively with two admission ports on Foot braking valve, the second shuttle valve that described dual-chamber brake air extractor duct is connected with pedal brake valve air gate is respectively with corresponding from the air extractor duct of front wheel brake storage tank and trailing wheel braking storage tank, to adapt to respectively the operating mode of front and rear wheel braking.
Brief description of the drawings
Fig. 1 is the structural representation of prior art;
Fig. 2 is the utility model detailed description of the invention structural representation;
Fig. 3 is the structural representation of the front gas port o air inlet of front air cylinder B in Fig. 2;
Fig. 4 is the structural representation of gas port l air inlet after exhaust hood A in Fig. 2;
Fig. 5 is the structural representation of gas port n air inlet after front air cylinder B in Fig. 2.
In figure, operation cylinder 1, dual-chamber brake 2, the first electric-controlled switch valve 3, the second electric-controlled switch valve 4, electric control reversing valve 5, the 3rd shuttle valve 6, Foot braking valve 7, the second shuttle valve 8, the first shuttle valve 9, front wheel brake storage tank 10, trailing wheel braking storage tank 11, electric controlled pneumatic brake valve 12, front and back wheel brake actuator 13, trailer braking protection valve actuating unit 14, front air cylinder A, exhaust hood B, the second admission port a of the first shuttle valve, the first admission port b of the first shuttle valve, the air extractor duct c of the first shuttle valve, the second admission port a1 of the second shuttle valve, the first admission port b1 of the second shuttle valve, the air extractor duct c1 of the second shuttle valve, the first air extractor duct d of Foot braking valve, the first admission port e of Foot braking valve, the second air extractor duct f of Foot braking valve, the second admission port g of Foot braking valve, the first outlet h of dual-chamber brake, the second outlet i of dual-chamber brake, the first admission port j of dual-chamber brake, the second admission port k of dual-chamber brake, gas port l after rear cylinder, gas port m before rear cylinder, gas port n after front cylinder, gas port o before front cylinder.
Detailed description of the invention
Below in conjunction with brief description of the drawings and specific embodiment mode, the utility model is described in further detail.
Referring to Fig. 2, the automobile electrically-controlled brake equipment of one of the present utility model, comprise Foot braking valve 7, braking storage tank and brake actuator, in gas circuit between described brake actuator and Foot braking valve 7, be provided with the second shuttle valve 8, the air extractor duct of described the second shuttle valve 8 connects brake actuator, an admission port of the second shuttle valve 8 is connected with the air extractor duct of Foot braking valve 7, another admission port of the second shuttle valve 8 with through electric controlled pneumatic brake valve 12 with braking storage tank be connected, described braking storage tank is divided into front wheel brake storage tank 10 and trailing wheel braking storage tank 11, described electric controlled pneumatic brake valve 12 is formed by connecting by operation cylinder 1 and dual-chamber brake 2, described operation cylinder 1 connects front wheel brake storage tank 10 and trailing wheel braking storage tank 11 by electromagnetic valve group, the air extractor duct of described dual-chamber brake 2 connects another admission port of the second shuttle valve 8, the admission port of dual-chamber brake 2 connects front wheel brake storage tank 10 and trailing wheel braking storage tank 11, described operation cylinder 1 is double stroke cylinder, the external part of described double stroke cylinder is connected with the control end of dual-chamber brake 2, the gas port of double stroke cylinder connects front wheel brake storage tank 10 and trailing wheel braking storage tank 11 by electromagnetic valve group.
Described double stroke cylinder is made up of the front air cylinder B with external part and the exhaust hood A that is connected on after front air cylinder B, the two ends of the two ends of exhaust hood A and front air cylinder B are respectively provided with 2 gas ports, the upper gas port near external part one side of front air cylinder B is gas port o before front cylinder, another gas port on front air cylinder B is gas port n after front cylinder, the upper gas port near front air cylinder B mono-side of exhaust hood A is gas port m before rear cylinder, and another gas port on exhaust hood A is gas port l after rear cylinder.According to the state that is positioned at the upper external part motion of front air cylinder B, in four gas ports, have two stretch out admission port after front cylinder after gas port n, rear cylinder gas port l and one return admission port before gas port o before cylinder, motion does not form gas port m before the rear cylinder of pneumostome of impact on external part to also have an air inlet.
The electromagnetic valve group matching with double stroke cylinder can have multiple, electromagnetic valve group comprises by a normally closed electric-controlled switch valve and one and often opens the gas circuit that electric-controlled switch valve forms air inlet and venting on a gas port as shown in Figure 1, but this electromagnetic valve group valve used is many, during to a gas port air inlet, needing to control multiple valve events could realize.
As Fig. 2, preferably make described electromagnetic valve group comprise three electric control reversing valves 5, described electric control reversing valve 5 is normally closed two position three-way valve, the admission port of three electric control reversing valves 5 is connected in parallel on the air extractor duct a of the first shuttle valve, the air extractor duct of three electric control reversing valves 5 is communicated with respectively after gas port l after the rear cylinder on double stroke cylinder, front cylinder gas port o before gas port n and front cylinder, before rear cylinder on described double stroke cylinder, gas port m is gas port o before being communicated with atmosphere or being communicated with front cylinder, and the gas returning port of three electric control reversing valves 5 is all communicated with atmosphere.So only need to control an electric control reversing valve 5, just can complete to a gas port air inlet and promote the process that external part moves.
Stepping on chaufeur pin distance that Foot braking valve 7 moves, directly to have influence on manual braking's effect the same, operation cylinder 1 promotes stroke that dual-chamber brake 2 moves and also can directly have influence on the intensity of braking, and stroke is less, and braking force is less, stroke is longer, and braking force is larger.The stroke that operation cylinder 1 stretches out motion is when maximum, it is full application of brake, comparatively speaking, in double stroke cylinder, the forced stroke of front air cylinder B has determined the range of double stroke cylinder external part, also the movement travel of double stroke cylinder external part while being full application of brake operation when automatically controlled, the forced stroke of exhaust hood A has determined the position that double stroke cylinder external part stops in whole stroke, i.e. the extension elongation of external part in the time of light braking.The size of braking force when the proportionate relationship of exhaust hood A forced stroke and front air cylinder B forced stroke has determined light braking.For improving the similarity of intelligent operation control and driver's operation control, preferably make the forced stroke of described front air cylinder B be equal to or greater than the forced stroke of Foot braking valve 7, the forced stroke of described exhaust hood A is 1/4～1/2 of front air cylinder B forced stroke.The too small low value that is less than this ratio of this ratio, braking force while gently braking is too little, braking effect is not obvious, light braking is little with the difference of brakeless, the excessive high value that exceedes this ratio of this ratio, braking force while gently braking is excessive, and the impact to vehicle while gently braking is larger, and it is uncomfortable that occupant can feel.The forced stroke that preferably makes described exhaust hood A is 1/3 of front air cylinder B forced stroke.At this moment 1/3 when the braking force of light braking is roughly equivalent to full application of brake,, the sensation of light braking is more steady, and comfort level is better.
Two admission ports that are provided with the first shuttle valve 9, the first shuttle valves 9 between described electromagnetic valve group and front wheel brake storage tank 10, trailing wheel braking storage tank 11 are connected with two storage tanks respectively.In Fig. 2, the second admission port a of the first shuttle valve is connected with trailing wheel braking storage tank 11, and the first admission port b of the first shuttle valve is connected with front wheel brake storage tank 10, and the air extractor duct c of the first shuttle valve is communicated with electromagnetic valve group.At this moment, have an admission port to have pressure or pressure higher than opposite side in two admission ports of the first shuttle valve 9, this admission port has in gas and flows through, and from the air extractor duct c output of the first shuttle valve, the admission port of opposite side is blocked.
The second admission port g of described Foot braking valve connects front wheel brake storage tank 10, the first admission port f of Foot braking valve connects trailing wheel braking storage tank 11, when the corresponding connection of the second admission port g of the second air extractor duct e of described Foot braking valve and Foot braking valve, flow through the gas in front wheel brake storage tank 10, when the corresponding connection of the first admission port f of the first air extractor duct d of Foot braking valve and Foot braking valve, flow through the gas in trailing wheel braking storage tank 11.
Two admission ports of described dual-chamber brake 2 connect respectively front wheel brake storage tank 10 and trailing wheel braking storage tank 11, the air extractor duct that is communicated with front wheel brake storage tank 10 on described dual-chamber brake 2 is connected on two admission ports of second shuttle valve 8 with the air extractor duct that is communicated with front wheel brake storage tank 10 on Foot braking valve 7, the air extractor duct that is communicated with trailing wheel braking storage tank 11 on described dual-chamber brake 2 is connected on two admission ports of another the second shuttle valve 8 with the air extractor duct that is communicated with trailing wheel braking storage tank 11 on Foot braking valve 7, the air extractor duct of two the second shuttle valves 8 is all connected with the admission port of brake actuator.
The second admission port k of described dual-chamber brake connects front wheel brake storage tank 10, the first admission port j of dual-chamber brake connects trailing wheel braking storage tank 11, when the corresponding connection of the second admission port k of the second air extractor duct i of described dual-chamber brake and dual-chamber brake, flow through the gas in front wheel brake storage tank 10, when the corresponding connection of the first admission port k of the first air extractor duct h of dual-chamber brake and dual-chamber brake, flow through the gas in trailing wheel braking storage tank 11.
The first air extractor duct d of Foot braking valve is connected to through pipeline on the first admission port b1 of second shuttle valve, the first air extractor duct h of dual-chamber brake is connected to through pipeline on the second admission port a1 of same the second shuttle valve, the second air extractor duct e of Foot braking valve is connected to through pipeline on the first admission port b1 of another the second shuttle valve, the second admission port a1 that the second air extractor duct i of dual-chamber brake is connected to another the second shuttle valve through pipeline is upper, and the air extractor duct c1 of two the second shuttle valves 8 is connected with trailer braking protection valve actuating unit 14 with front and back wheel brake actuator 13 respectively.
On described Foot braking valve 7, contact the valve body of pedal, structurally identical with dual-chamber brake 2.
Described brake actuator comprises front and back wheel brake actuator 13 and trailer braking protection valve actuating unit 14.
Referring to Fig. 2, Fig. 3, Fig. 4, Fig. 5, in described double stroke cylinder, have two to stretch out the i.e. gas port l after gas port n and rear cylinder after front cylinder of admission port, one return admission port before the front gas port o of cylinder respectively the situation of air inlet be described as follows:
Three described electric control reversing valves 5 are normally closed two position three-way valve.Described double stroke cylinder comprises front air cylinder B and exhaust hood A, the external part of front air cylinder B withstands on the control end of dual-chamber brake 2, after exhaust hood A is connected on front air cylinder B, the external part of exhaust hood A stretches in the cylinder body of front air cylinder B and can promote the piston movement of front air cylinder B from the rear portion of front air cylinder B, the length of front air cylinder B cylinder body is greater than the length of exhaust hood A cylinder body.In Fig. 3 ~ Fig. 5, the length of front air cylinder B external part and piston operation is one times of left and right of exhaust hood A piston running length.
As Fig. 3, open and connect gas circuit when being connected to before the first shuttle valve 9 and front cylinder the electric control reversing valve 5 between gas port o, electric control reversing valve 5 after being connected to the electric control reversing valve 5 between gas port l after the first shuttle valve 9 and rear cylinder and being connected to the first shuttle valve 9 and being connected to the first shuttle valve 9 and front cylinder between gas port n still closes gas circuit in normally off, the gas returning port of this two electric control reversing valve 5 is communicated with atmosphere, from the gas of the first shuttle valve 9 air extractor duct c1 from front air cylinder B before cylinder gas port o inject the rod end chamber of double stroke cylinder front air cylinder B, gas port n motion after the piston forward cylinder in front air cylinder B, and promote the piston rod movement in exhaust hood A, make exhaust hood A inner carrier move to gas port l place after rear cylinder, at this moment, the state of front air cylinder external part in just having contacted with dual-chamber brake 2, be equivalent to chaufeur in the time of brakeless, the pedal of foot-operated brake 7 is the same in relaxation state, so time electric controlled pneumatic brake valve 12 cancel the state of brake operating in brakeless.
As Fig. 4, when be connected to the first shuttle valve 9 and after after cylinder the electric control reversing valve 5 between gas port l open and connect gas circuit, electric control reversing valve 5 after being connected to the electric control reversing valve 5 between the front gas port o of the first shuttle valve 9 and front cylinder and being connected to the first shuttle valve 9 and front cylinder between gas port n still closes gas circuit in normally off, the gas returning port of this two electric control reversing valve 5 is communicated with atmosphere, before rear cylinder, gas port m is communicated with atmosphere as pneumostome, or before rear cylinder, before gas port m and front cylinder, gas port o is in parallel, from the gas of the first shuttle valve 9 air extractor duct c1 from exhaust hood A after cylinder gas port l inject the plunger shaft of double stroke cylinder exhaust hood A, the piston in the front cylinder B of the promotion of the piston rod in exhaust hood A and external part are to control end one lateral movement of dual-chamber brake 2, when the piston movement in exhaust hood A to gas port m place before rear cylinder be equivalent to front air cylinder A external part release stroke 1/3 time, piston movement in rear cylinder A completes a stroke, at this moment, front air cylinder external part only promotes dual-chamber brake 2 and has completed 1/3 movement travel, the first outlet h part conducting of the first admission port j of dual-chamber brake and dual-chamber brake, the second outlet i part conducting of the second admission port k dual-chamber brake of dual-chamber brake, the gas of part conducting enters the second admission port a1 of two the second shuttle valves, promote valve core movement, make gas flow to and drive brake actuator action from the air extractor duct c1 of two the second shuttle valves, the light braking of the brake actuator of realization including front and back wheel brake actuator 13 and trailer braking protection valve actuating unit 14, being equivalent to pilot control carries out while gently braking, only step on the stroke of foot-operated brake 7 parts, so time electric controlled pneumatic brake valve 12 in light braking mode.
As Fig. 5, open and connect gas circuit when being connected to after the first shuttle valve 9 and front cylinder the electric control reversing valve 5 between gas port n, electric control reversing valve 5 after being connected to the electric control reversing valve 5 between the front gas port o of the first shuttle valve 9 and front cylinder and being connected to the first shuttle valve 9 and rear cylinder between gas port l still closes gas circuit in normally off, the gas returning port of this two electric control reversing valve 5 is communicated with atmosphere, inject the plunger shaft of double stroke cylinder front air cylinder B from gas port n after gas the past cylinder of the first shuttle valve 9 air extractor duct c1, the piston in front air cylinder B and external part are to control end one lateral movement of dual-chamber brake 2, until gas port o while being external part highest distance position before front cylinder, piston movement in front air cylinder B just stops, at this moment, front air cylinder external part promotes dual-chamber brake 2 and marches to advance distance farthest, the full conducting of the first outlet h of the first admission port j of dual-chamber brake and dual-chamber brake, the full conducting of the second outlet i of the second admission port k of dual-chamber brake and dual-chamber brake, gas after full conducting enters the second admission port a of two the second shuttle valves, promote valve core movement, make gas flow to and drive brake actuator action from the air extractor duct c1 of two the second shuttle valves, whole brakings of the brake actuator of realization including front and back wheel brake actuator 13 and trailer braking protection valve actuating unit 14, being equivalent to pilot control steps on the pedal of foot-operated brake 7 to range and floors, whole brakings are realized.
Above content is the further description of the utility model being done in conjunction with detailed description of the invention; can not think that concrete enforcement of the present utility model is confined to these explanations; for the utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; the simple replacement of making, all should be considered as belonging to protection domain of the present utility model.
Claims (8)
1. an automobile electrically-controlled brake equipment, comprise Foot braking valve (7), braking storage tank and brake actuator, in gas circuit between described brake actuator and Foot braking valve (7), be provided with the second shuttle valve (8), the air extractor duct of described the second shuttle valve (8) connects brake actuator, an admission port of the second shuttle valve (8) is connected with the air extractor duct of Foot braking valve (7), another admission port of the second shuttle valve (8) with through electric controlled pneumatic brake valve (12) with braking storage tank be connected, described braking storage tank is divided into front wheel brake storage tank (10) and trailing wheel braking storage tank (11), described electric controlled pneumatic brake valve (12) is formed by connecting by operation cylinder (1) and dual-chamber brake (3), described operation cylinder (1) connects front wheel brake storage tank (10) and trailing wheel braking storage tank (11) by electromagnetic valve group, the air extractor duct of described dual-chamber brake (3) connects another admission port of the second shuttle valve (8), the admission port of dual-chamber brake (2) connects front wheel brake storage tank (10) and trailing wheel braking storage tank (11), it is characterized in that: described operation cylinder (1) is double stroke cylinder, the external part of described double stroke cylinder is connected with the control end of dual-chamber brake (2), the gas port of double stroke cylinder connects front wheel brake storage tank (10) and trailing wheel braking storage tank (11) by electromagnetic valve group.
2. the automobile electrically-controlled brake equipment of one according to claim 1, it is characterized in that: described double stroke cylinder is by the front air cylinder with external part (B) and be connected on front air cylinder (B) exhaust hood (A) formation afterwards, the forced stroke of described front air cylinder (B) is equal to or greater than the forced stroke of Foot braking valve (7), and the forced stroke of described exhaust hood (A) is 1/4～1/2 of front air cylinder (B) forced stroke.
3. the automobile electrically-controlled brake equipment of one according to claim 2, is characterized in that: the forced stroke of described exhaust hood (A) is 1/3 of front air cylinder (B) forced stroke.
4. the automobile electrically-controlled brake equipment of one according to claim 1, it is characterized in that: between described electromagnetic valve group and front wheel brake storage tank (10), trailing wheel braking storage tank (11), be provided with the first shuttle valve (9), two admission ports of the first shuttle valve (9) are communicated with two storage tanks respectively, and the air extractor duct of the first shuttle valve (9) is communicated with electromagnetic valve group.
5. according to the automobile electrically-controlled brake equipment of the one described in claim 1 or 4, it is characterized in that: described electromagnetic valve group comprises three electric control reversing valves (5), described electric control reversing valve (5) is normally closed two position three-way valve, the admission port of three electric control reversing valves (5) is connected in parallel on the air extractor duct of the first shuttle valve (9), the air extractor duct of three electric control reversing valves (5) is communicated with respectively gas port (l) after the rear cylinder on double stroke cylinder, gas port (o) before gas port after front cylinder (n) and front cylinder, before rear cylinder on described double stroke cylinder, gas port (m) is gas port (o) before being communicated with atmosphere or being communicated with front cylinder, the gas returning port of three electric control reversing valves (5) is all communicated with atmosphere.
6. the automobile electrically-controlled brake equipment of one according to claim 1, it is characterized in that: two admission ports of described dual-chamber brake (3) connect respectively front wheel brake storage tank (10) and trailing wheel braking storage tank (11), the upper air extractor duct that is communicated with front wheel brake storage tank (10) of described dual-chamber brake (2) is connected on two admission ports of second shuttle valve (8) with the air extractor duct that is communicated with front wheel brake storage tank (10) on Foot braking valve (7), the upper air extractor duct that is communicated with trailing wheel braking storage tank (11) of described dual-chamber brake (2) is connected on two admission ports of another the second shuttle valve (8) with the air extractor duct that is communicated with trailing wheel braking storage tank (11) on Foot braking valve (7), the air extractor duct of two the second shuttle valves (8) is all connected with the admission port of brake actuator.
7. the automobile electrically-controlled brake equipment of one according to claim 1, is characterized in that: the valve body of the upper contact of described Foot braking valve (7) pedal is structurally identical with dual-chamber brake (2).
8. according to the automobile electrically-controlled brake equipment of the one described in claim 1 or 6, it is characterized in that: described brake actuator comprises front and back wheel brake actuator (13) and trailer braking protection valve actuating unit (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420039285.5U CN203753123U (en) | 2014-01-22 | 2014-01-22 | Electric control brake device for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420039285.5U CN203753123U (en) | 2014-01-22 | 2014-01-22 | Electric control brake device for car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203753123U true CN203753123U (en) | 2014-08-06 |
Family
ID=51248427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420039285.5U Expired - Lifetime CN203753123U (en) | 2014-01-22 | 2014-01-22 | Electric control brake device for car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203753123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386406A (en) * | 2018-01-31 | 2018-08-10 | 东风商用车有限公司 | A kind of air cylinder structure and its application process |
-
2014
- 2014-01-22 CN CN201420039285.5U patent/CN203753123U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386406A (en) * | 2018-01-31 | 2018-08-10 | 东风商用车有限公司 | A kind of air cylinder structure and its application process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108501921B (en) | A kind of hydraulic line control brake system and its brake control method with double pressure sources | |
| US8794718B2 (en) | Valve unit for an electro-pneumatic brake control device for controlling a parking brake | |
| CN105073529B (en) | Brakes for motor vehicle | |
| CN203543939U (en) | Automobile proportional relay valve | |
| CN108979869B (en) | Vehicle with a steering wheel | |
| CN104169143A (en) | Vehicle brake device | |
| CN105329229A (en) | Car and braking system of car | |
| CN201511953U (en) | Active control device for automobile brake | |
| CN201842110U (en) | Small grouped diesel multiple unit brake system | |
| CN203753123U (en) | Electric control brake device for car | |
| CN105008193A (en) | Fluid-pressure brake device for vehicle | |
| CN106194442A (en) | The throttle of a kind of vehicle, gear, exhaust brake combination control method | |
| CN108394396B (en) | Loader service braking system | |
| CN104760583B (en) | Automobile front axle holding brake device, parking braking system of automobile | |
| CN211231051U (en) | Unmanned operation automatic control forklift brake hydraulic system | |
| CN105365805A (en) | Pneumatic braking system capable of preventing vehicle from having malfunctions | |
| CN211617672U (en) | Air pipeline system of driving brake system of instructional car | |
| CN110541856B (en) | Unmanned automatic control's fork truck braking hydraulic system | |
| CN108146414B (en) | Electronic parking valve with proportional output and control method | |
| CN207328144U (en) | Automobile accelerator mistake-stepping prevention device | |
| CN203856589U (en) | Shuttle bus and exhaust braking system thereof | |
| CN2868789Y (en) | Fully double-circuit automobile braking system | |
| CN203005403U (en) | Pneumatic control type assistant braking device for truck | |
| CN205168480U (en) | Commercial vehicle hill start auxiliary system air -operated controller solenoid valve | |
| CN203485908U (en) | Braking main valve of air inflation brake |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |