CN103010196A - Pilot central valve position control type integrated master pump - Google Patents
Pilot central valve position control type integrated master pump Download PDFInfo
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- CN103010196A CN103010196A CN2012103424196A CN201210342419A CN103010196A CN 103010196 A CN103010196 A CN 103010196A CN 2012103424196 A CN2012103424196 A CN 2012103424196A CN 201210342419 A CN201210342419 A CN 201210342419A CN 103010196 A CN103010196 A CN 103010196A
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Abstract
The technical scheme of the invention provides a pilot central valve position control type integrated master pump. The structure of the pilot central valve position control type integrated master pump comprises a cylinder body, an oiler is arranged on the cylinder body, the rear end of the cylinder body is close, the front end of the cylinder body is open, a clutch master pump for controlling a clutch and a braking master pump for controlling front and rear wheels are arranged in the cylinder body, both the clutch master pump and the braking master pump are connected with the oiler, the sidewalls of both the clutch master pump and the braking master pump are provided with oil discharge outlets, and an opening and closing valve for controlling the opening and closing of the oil discharge outlet of the sidewall of the braking master pump is arranged in the oil discharge outlet.
Description
Technical field
The present invention relates to the integrated master cylinder of car brakeing, relate in particular to the integrated master cylinder of a kind of leading center control of valve position formula.
Background technology
In the prior art, the mode of car brakeing and power-transfer clutch being controlled by single pedal, realized that single pin is to the control of Clutch and brake, thereby can realize the two pedal arrangements fairly simple to Driving control, it is with respect to three pedal arrangements of the commonplace use of present automobile, that is: a left side is pedal of clutch, the right side is brake pedal, the acceleration/accel pedal, safety and the snap catch ability of vehicle operating have been improved, also reduced simultaneously the operation fatigue of chaufeur, can solve preferably the safe driving problem of chaufeur, the support link of human body control is provided for the transit industry safe driving.At present in the vehicle application of two pedal arrangements main be automatic gear car, automatic catch two pedal arrangements need to could be realized by turbine transformer, although turbine transformer is with high content of technology, but relative complex structure, volume and weight are all larger, fault rate is also relatively high, and fault cause is also complicated, so that the service expenditure in later stage is also higher.
Summary of the invention
For solving above-mentioned technical matters, the invention provides the more comprehensively integrated master cylinder of leading center control of valve position formula of a kind of performance.
Technical scheme of the present invention is, a kind of integrated master cylinder of leading center control of valve position formula with following structure is provided, it comprises cylinder body, cylinder body is provided with oil can, it is characterized in that: described rear end of the cylinder block sealing, front opening, be provided with in the cylinder body for the clutch general pump of control clutch and the master brake cylinder that is used for the control front and back wheel, clutch general pump and master brake cylinder all are connected with oil can, the sidewall of clutch general pump and master brake cylinder is equipped with oil discharge outlet, is provided with the keying valve of its keying of control in the oil discharge outlet of master brake cylinder sidewall.
Before adopting said structure, the present invention has following remarkable advantage and beneficial effect:
This integrated master cylinder can directly be connected with power-transfer clutch and the front and rear wheel brake system of vehicle; not only obviously reduced cost with respect to hydraulic torque converter; and vehicle crash change of speed speed-raising also there is comparatively significant effect; what this integrated master cylinder can add simultaneously forces the control of combining device and retarder thereof to power-transfer clutch, to the protection of drg, prevent brake overheating and deceleration and stopping performance is descended larger benefit is arranged.
Better, described master brake cylinder comprises the first brake pump and the second brake pump, and the sidewall of the first brake pump is provided with the first braking oil discharge outlet, and the sidewall of the second brake pump is provided with the second braking oil discharge outlet; Clutch general pump, the first brake pump and the second brake pump are equipped with for the break-make structure that connects oil can.The first brake pump be connected brake pump and connect respectively at the brake system of front and rear wheel.
Better, be provided with successively from front to back clutch piston, clutch epitrochoidal chamber, transition piston, the first brake piston, the first braking epitrochoidal chamber, the second brake piston and the second braking epitrochoidal chamber in the described cylinder body;
Be provided with the first retracing spring between clutch piston and clutch epitrochoidal chamber and transition piston composition clutch general pump and clutch piston and the transition piston; The first brake piston is installed in the rear end of transition piston, and the first brake piston and the first braking epitrochoidal chamber and the second brake piston form the first brake pump, are provided with the second retracing spring between the first brake piston and the second brake piston; The rear end of the second brake piston and the second braking epitrochoidal chamber and cylinder body forms the second brake pump, is provided with the 3rd retracing spring between the rear end of the second brake piston and cylinder body.This structure can realize the smooth break-make of epitrochoidal chamber and oil circuit by comparative maturity in the prior art, general brake piston technology, and is not only reliable, and can save design cost.
Better, described break-make structure for connecting oil can refers to that respectively the inwall of clutch epitrochoidal chamber is provided with eccentric interior step groove, and step groove place is provided with the first seal ring in this, and the front side of the first seal ring is provided with the first oil duct that is communicated with oil can; Be provided with the transition epitrochoidal chamber between transition piston and the first brake piston, the transition epitrochoidal chamber is communicated with oil can through the second oil duct; The second brake piston is provided with the annular opening groove, and the annular opening groove is communicated with oil can through the 3rd oil duct.The break-make structure design of each epitrochoidal chamber and oil can is ingenious, take full advantage of the self performance of brake piston, the epitrochoidal chamber that makes can keep being communicated with or cutting off with oil can smoothly, exactly, unclamp exactly pedal, when each piston is in the return state under action of reset spring, each epitrochoidal chamber and oil can UNICOM.Move to left when depressing the pedal piston, each epitrochoidal chamber rises establishes when pressing, and the path of each epitrochoidal chamber and oil can all is cut off.
Better, described cylinder body is comprised of rear-bank rotor housing and the front-bank rotor housing that forward and backward two sections internal diameters vary in size, and rear-bank rotor housing is connected bolted with front-bank rotor housing and connects; Clutch general pump is positioned at front-bank rotor housing, and master brake cylinder is positioned at rear-bank rotor housing.The reducing cascaded structure can guarantee to satisfy separately different operation pressure demand of Clutch and brake.
Better, described keying valve comprises valve rod, fork and push rod, valve rod is provided with for the boss body of blocking respectively the first braking oil discharge outlet and the second braking oil discharge outlet, the bottom of rear-bank rotor housing is provided with slide opening, the valve rod sliding fit is in slide opening, be provided with the pull back spring that valve rod is applied elastic force in the slide opening, the rear end of rear-bank rotor housing is provided with the pendulum hole, fork is free to rotate to be installed in the pendulum hole, push rod passes the transition piston, the first brake piston and the second brake piston and through sealing member and their sliding fits, the front end of push rod stretches out the front end of transition piston and is provided with block, be provided with push rod spring between block and the transition piston, one end of fork and the rear end of push rod offset, and the rear end of the other end and valve rod offsets.By the body of stepping down that the clutch piston is entrained the effect of push rod is realized opening and closing the break-make control of valve.Body does not produce traction to push rod so this integrated master cylinder to clutch control the time, is stepped down, and closes so open and close valve, and only have clutch plunger to move to left this moment, and two braking pistons keep motionless.Clutch plunger continues to move to left and opens valve rod when the body of stepping down supports, and when the keying valve is in opening, begins to produce the braking control action, and this moment, clutch plunger was closed the oil discharge outlet of power-transfer clutch epitrochoidal chamber.It is to be controlled by the clutch plunger of anteposition that obvious this braking opens and closes, the pattern that the stroke that determined by the position of the relative push rod of clutch plunger the opportunity that this braking opens and closes is determined, so be named as " the integrated master cylinder of leading center control of valve position formula ", also can be referred to as " the total cylinder of front conduction central valve position control integration ".This operation pressure by the power-transfer clutch epitrochoidal chamber comes a certain position of pedal is needed drg is begun to produce the binding mode of braking, in the time of can guaranteeing to greatest extent that pedal is controlled Clutch and brake, its treadle effort and pedal stroke can not surpass the prescribed limits of human body standard.
Better, the rear end of described clutch piston is provided with axial mounting hole, be provided with step down body and the spring of stepping down in the mounting hole, step down body and mounting hole sliding fit and will step down spring application in mounting hole, the first retracing spring are enclosed within steps down external and offsets with limiting stopper in the mounting hole.This structure can prevent that valve rod from trampling the damage that the single control pedal causes valve rod because of operator's transition in braking procedure, allows bit architecture can play good buffer action.
As improvement, described keying valve comprises valve rod, valve rod is provided with for the boss body of blocking respectively the first braking oil discharge outlet and the second braking oil discharge outlet, the bottom of rear-bank rotor housing is provided with slide opening, the valve rod sliding fit is in slide opening, be provided with the pull back spring that valve rod is applied elastic force in one end of slide opening, the other end is communicated with the clutch epitrochoidal chamber through oil pipe.The keying valve can have multiple, is hydraulic valve herein.
Improve as another kind, described keying valve is electromagnetic valve, and described electromagnetic valve the first braking oil discharge outlet is braked the oil discharge outlet connection with being connected.
Description of drawings:
Fig. 1 is the structural representation of the integrated master cylinder of the leading center of the present invention control of valve position formula;
Fig. 2 is the enlarged diagram at A place among Fig. 1;
Fig. 3 is the integrated master cylinder characteristic working curve of leading center control of valve position formula scheme drawing;
Fig. 4 is the integrated master pump structure scheme drawing of leading center control of valve position formula with vacuum booster;
Fig. 5 is for adopting the integrated master pump structure scheme drawing of leading center control of valve position formula of hydraulic switch valve arrangement;
Fig. 6 is for adopting electromagnetic valve to open and close the integrated master pump structure scheme drawing of leading center control of valve position formula of valve arrangement;
Fig. 7 is for adopting electromagnetic valve to open and close the integrated master pump structure scheme drawing of another kind of leading center control of valve position formula of valve arrangement
The specific embodiment:
The invention will be further described below in conjunction with drawings and the specific embodiments.
Such as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Figure 7, the integrated master cylinder of the leading center of the present invention control of valve position formula, it comprises cylinder body, cylinder body is provided with oil can 1, described rear end of the cylinder block sealing, front opening, be provided with in the cylinder body for the clutch general pump of control clutch and the master brake cylinder that is used for the control front and back wheel, clutch general pump and master brake cylinder all are connected with oil can 1, the sidewall of clutch general pump and master brake cylinder is equipped with oil discharge outlet, is provided with the keying valve of its oil circuit break-make of control in the oil discharge outlet of master brake cylinder sidewall.
Wherein, above-mentioned master brake cylinder comprises the first brake pump and the second brake pump, and the sidewall that the sidewall of the first brake pump is provided with the first braking oil discharge outlet 2, the second brake pumps is provided with the second braking oil discharge outlet 3; Clutch general pump, the first brake pump and the second brake pump are equipped with for the break-make structure that connects oil can 1.
Concrete, be provided with successively from front to back clutch piston 4, clutch epitrochoidal chamber 5, transition piston 6, the first brake piston 7, the first braking epitrochoidal chamber 8, the second brake piston 9 and the second braking epitrochoidal chamber 10 in the cylinder body;
Be provided with the first retracing spring 11 between clutch piston 4 and clutch epitrochoidal chamber 5 and transition piston 6 composition clutch general pumps and clutch piston 4 and the transition piston 6; The first brake piston 7 is installed in the rear end of transition piston 6, and the first brake piston 7 and the first braking epitrochoidal chamber 8 and the second brake piston 9 form the first brake pump, are provided with the second retracing spring 12 between the first brake piston 7 and the second brake piston 9; The rear end of the second brake piston 9 and the second braking epitrochoidal chamber 10 and cylinder body forms the second brake pump, is provided with the 3rd retracing spring 14 between the rear end of the second brake piston 9 and cylinder body.
And the break-make structure that is used for connection oil can 1 refers to respectively, and the inwall of clutch epitrochoidal chamber 5 is provided with eccentric interior step groove 16, and the front side that these interior step groove 16 places are provided with the first seal ring 17, the first seal rings 17 is provided with the first oil duct 18 that is communicated with oil can 1; Be provided with transition epitrochoidal chamber 13 between transition piston 6 and the first brake piston 7, transition epitrochoidal chamber 13 is communicated with oil can 1 through the second oil duct 19; The second brake piston 9 is provided with annular opening groove 15, and annular opening groove 15 is communicated with oil can 1 through the 3rd oil duct 29.Here the first brake piston 7 and the second brake piston 9 have been used for reference routine techniques, have guaranteed that hydraulic oil can enter in each epitrochoidal chamber smoothly.And the concrete structure of wherein each epitrochoidal chamber can also be by multiple variation, such as: as shown in Figure 7, the concrete structure of transition oil pocket 13 also can adopt the structure of annular opening groove 15, and this moment, the first brake pump was all identical with the second braking pump structure.Form cavity 35 between the front end of the first brake piston 7 and transition piston 6, offer exhausr port 36 at the cylinder wall of the first brake piston 7 front ends, the cavitys in the cavity 35 are discharged smoothly, and this structure is conducive to brake the smooth return of finishing first piston 7.
For reaching more satisfactory clutch and braking effect, the reducing cylinder body that cylinder body adopts the rear-bank rotor housing 20 that varied in size by forward and backward two sections internal diameters and front-bank rotor housing 21 to form, so also be convenient to the assembling in later stage, rear-bank rotor housing 20 is connected with front-bank rotor housing and is connected through bolted, certainly, rear-bank rotor housing 20 is flexibly with the connection mode of front-bank rotor housing 21, and other can realize that both all can adopt the stable mode that connects, and do not do one by one at this and enumerate; Clutch general pump is positioned at front-bank rotor housing 21, and master brake cylinder is positioned at rear-bank rotor housing 20.
Described keying valve comprises valve rod 22, fork 23 and push rod 24, valve rod 22 is provided with for the boss body 30 of blocking respectively the first braking oil discharge outlet 2 and the second braking oil discharge outlet 3, the bottom of rear-bank rotor housing 20 is provided with slide opening 25, valve rod 22 sliding fits are in slide opening 25, be provided with the pull back spring 26 that valve rod 22 is applied elastic force in the slide opening 25, the rear end of rear-bank rotor housing 20 is provided with pendulum hole 27, fork 23 free to rotate being installed in the pendulum hole 27, push rod 24 passes transition piston 6, the first brake piston 7 and the second brake piston 9 and through sealing member and their sliding fits, the front end of push rod 24 stretches out the front end of transition piston 6 and is provided with block 28, be provided with push rod spring 29 between block 28 and the transition piston 6, one end of fork 23 and the rear end of push rod 24 offset, and the rear end of the other end and valve rod 22 offsets.Being connected between fork 23 and push rod 24 and the valve rod 22 can also be other modes, as hinged, promote valve rods 22 and moves as long as can realize that fork 23 swings.When reality is used, according to concrete vehicle or working condition requirement, can adopt ' trailing wheel is prior to front wheel brake ', or ' front-wheel is braked prior to trailing wheel ' or ' front, trailing wheel is braked simultaneously ' the sequence requirement of wheel hub braking, and the brake system of front and back wheel there is no specific requirement with being connected of two oil discharge outlets, can adjust mutually as required, for reaching this requirement, above-mentionedly the size of above-mentioned boss body 30 can be done suitable adjustment, with the unlatching of satisfying two braking oil discharge outlets demand after having is first arranged, because boss body 30 all is to be positioned on the valve rod 22, so but synchronizing moving, therefore, the size relationship between two braking oil discharge outlet relative boss body 30 steps can for
, also can be designed to
＞
, can certainly be designed to
＞
When for anti-throw-out lever 24 promotion forks 23 it being offseted with pendulum hole 27 sidewalls, push rod 24 occurs excessive around the property distortion, thereby produce the impact on each epitrochoidal chamber sealing property, in clutch piston 4, be provided with axial mounting hole 4.1, in mounting hole 4.1, be provided with step down body 4.2 and the spring 4.3 of stepping down, the body 4.2 of stepping down is pressed in the mounting hole 4.1 with mounting hole 4.1 sliding fits and the spring 4.3 of will stepping down, and it is outer and offset with limiting stopper in the mounting hole 4.1 that the first retracing spring 11 is enclosed within the body 4.2 of stepping down.Structure whereby, at mounting hole 4.1 upper side walls oil inlet is set, dock 5 oil-feeds of realization clutch epitrochoidal chamber with the first oil duct 18 by oil inlet, in clutch piston 4 moving process, oil inlet is in the break-make that alternately realizes clutch epitrochoidal chamber 5 and oil can 1 of the first seal ring 17 both sides.
In addition, in the present invention, the structure that opens and closes valve can have various structures, such as: hydraulic valve or electromagnetic valve all can be realized purpose of the present invention.
Wherein, hydraulic valve just can adopt following structure: described keying valve comprises valve rod, valve rod 22 is provided with for the boss body 30 of blocking respectively the first braking oil discharge outlet 2 and the second braking oil discharge outlet 3, the bottom of rear-bank rotor housing 20 is provided with slide opening 25, valve rod 22 sliding fits are in slide opening 25, be provided with the pull back spring 26 that valve rod 22 is applied elastic force in one end of slide opening 25, the other end is communicated with the clutch epitrochoidal chamber through oil pipe.The keying valve can have multiple, is hydraulic valve herein.
And when opening and closing valve and being electromagnetic valve 33, need to operate with the open-close on-off 34 of 24 pairs of electromagnetic valves 33 of push rod, one end of push rod 24 is connected with clutch piston 4, the other end passes transition piston 6, the first brake piston 7 and the second brake piston 9 and reaches the outside of rear-bank rotor housing 20, electromagnetic valve 33 first braking oil discharge outlets 2 are braked oil discharge outlet 3 connections with being connected, and the open-close on-off 34 of electromagnetic valve 33 is docked with the other end of push rod 24.Like this, move forward and backward in the process at clutch piston 4, just can control electromagnetic valve 33 according to the distance that clutch piston 4 moves.
Certainly, the structure that opens and closes valve can also have multiple variation, is not repeated at this, and is all in the scope of independent claims of the present invention, utilizes principle of the present invention, adopts various conventional variations all to belong to and drops in protection scope of the present invention.
Groundwork process when the present invention uses is as follows:
⑴ clutch general pump, the first brake pump and the second brake pump under the normality in clutch general pump and the master brake cylinder all keeps being communicated with oil can 1, the first braking oil discharge outlet and the first braking oil discharge outlet all are in normally off, the clutch oil discharge outlet is in normally open, or is in normally off through pressure retaining valve (not shown in FIG.).
At first, just can promote the clutch piston when depressing " single control pedal " moves to left, the first retracing spring 11 is compressed, oil circuit between clutch epitrochoidal chamber 5 and the oil can 1 is disconnected, oil pressure in the clutch epitrochoidal chamber 5 raises, the first brake piston 7, the second brake piston 9 are followed move to left and close each cylinder and oil can 1 often open the road, the valve rod 22 of this moment keeps motionless, because making the first braking oil discharge outlet 2 and second brake 3 mouthfuls of oil extractions, boss body 30 is in normally off, so that the first braking clutch release slave cylinder 8 and the second braking clutch release slave cylinder 10 form two independently sealing integral body;
⑵ continue to treadle, oil pressure in the first braking clutch release slave cylinder 8, the second braking clutch release slave cylinder 10 and the clutch epitrochoidal chamber 5 all raises, but be not enough to promote the first brake piston 7 and the second brake piston 9 is moved, thereby finish disengaging of clutch, navigating mate can carry out gear shift operation this moment, or keeps the inertia traveling of automobile;
⑶ continue pushes pedals, enter slow control, power-transfer clutch force in conjunction with or the retarder controlled start working, when moving forward to block 28, clutch piston 4 collides with the body 4.2 of stepping down, push rod 24 moves to left, drive fork 23 swings and promote valve rod 22 and move, the first braking oil discharge outlet 2 and the second braking oil discharge outlet 3 are opened, begin vehicle is braked, this moment, clutch plunger 4 was closed the oil discharge outlet 14 of power-transfer clutch epitrochoidal chamber 5, continue to treadle, clutch piston 4 offsets with transition piston 6, it is mobile that the first brake piston 7 and the second brake piston 9 begin, valve rod 22 pushed away move to the first braking oil discharge outlet 2 and the second braking oil discharge outlet 3 be opened to certain position after, and the pommel is passed when offseting with pendulum hole 27 rear walls on the fork 23, the body 4.2 of stepping down begins to retreat movement, both guaranteed the position of valve rod 22, and can guarantee that again clutch piston 4 continued to promote transition pistons 6 and moves, made the first brake pump and the second brake pump can continue vehicle is braked.After unclamping pedal, under the effect of each retracing spring, integrated master cylinder can be replied normality smoothly.
The present invention combines with clutch system, the brake system of vehicle, can be according to the more satisfactory realization of vehicle condition from disengaging of clutch, enter power-transfer clutch and force in conjunction with the stage and realize that trailer is slow, enter again braking action of vehicle, then enter the disengaging of clutch stage to realize braking during standstill or emergency braking.
Set forth in conjunction with Fig. 4, this integrated master cylinder is with reference to present existing technology, when use is of the present invention, can between pedal and the integrated master cylinder of the present invention, set up work-saving device, such as vacuum booster 31, can guarantee that effective supply is to the separating force of power-transfer clutch and the braking force of drg in the limit value of human foot legpower.
This example can realize that Clutch and brake is by single pedal control, more be conducive to the motor habit that human body is controlled, the i.e. continuity of foot-operated action control, be exactly in detail: keep the inertia speed of a motor vehicle by disengaging of clutch, to the slow control of automobile, arrive again the continuity control of service brake.
This integrated master cylinder has another name called the two pedal arrangements that integrated master cylinder is realized, the automatic catch two pedal arrangements that relatively present employed turbine transformer is realized, and the former is lower than latter cost, the acceleration starting is faster.Although and turbine transformer is with high content of technology, relative complex structure, volume and weight are all larger, and fault rate is also relatively high, and fault cause is also complicated, and service expenditure is more high defective also.
The two pedal arrangements of being realized by this integrated master cylinder; by forcing combining device to control to power-transfer clutch; not only can increase the slow control function of automobile; also can set up during this time other retarder of automobile such as the control function of eddy current retarder, throttle gate retarder etc.; thereby reach the purpose to the drg protective effect; prevent from not establishing slow function because of the braking control process, direct frequent use to drg, and cause it to rub overheated and the problem generation braking failure.
Set forth in conjunction with Fig. 3, this integrated master cylinder is that a kind of position prosecutor formula of opening by the clutch plunger stroke of braking is controlled, although this master cylinder is controlled by a pedal, but when work, can not produce the phenomenon that ' clutch for clutch control piston ' and ' braking control plunger ' is subjected to displacement jointly, thereby cause pedal stroke excessive and exceed the specialized range value of human body pedal stroke, clutch control piston and drg control plunger are the reducing cascaded structure simultaneously, so not only can guarantee clutch control pressure different from the demand of the operation pressure separately of drg control presssure, but also can guarantee Clutch and brake controlled the time, its treadle effort also can not surpass the specified value of human body standard.Concretely, under the same treadle effort, when the position of pedal is lower than d
lDuring boundary position, a pedal control clutch namely is power-transfer clutch epitrochoidal chamber generation compressive deformation, is higher than d but work as pedal position
lDuring boundary position, pedal produces control action to drg, and this moment, compressive deformation occured first, second brake chamber successively, and the power-transfer clutch epitrochoidal chamber then remains on the state that clutch plunger and transition piston offset, and the distortion of its epitrochoidal chamber no longer occurs.This characteristic curve is the non-single curve that increases progressively, because this curve is at d
l" falling " characteristic of boundary position has just determined that also treadle effort can not surpass this requirement of specified value of human body standard.And braking and clutch epitrochoidal chamber compressive deformation independently separately, the pressure that not only can guarantee the epitrochoidal chamber that it is corresponding is built and is pressed soon, and its pedal stroke is also lacked most.
During two pedal arrangement that employing is realized by this integrated master cylinder, the interlock control action of single control pedal and acceleration/accel pedal can realize vehicle manual and the automatic more convenient alternately control action of engage a gear.Such as one of automatic engage a gear control example be: after depressing the single control pedal and making disengaging of clutch, further depressing pedal makes power-transfer clutch force the whole on period of combination again, this moment, automobile was in slow or stroke braking mode, depress again when being cut off the acceleration/accel pedal of Fuel supply system by the single control pedal, chaufeur just can by the control system of vehicle body computer, can be realized the purpose of next grade of automatic hanging.Same depress this moment when being cut off the acceleration/accel pedal of Fuel supply system by the single control pedal during chaufeur depresses the single control pedal and makes disengaging of clutch whole, chaufeur can by the control system of vehicle body computer, can be realized the purpose of automatic put in first gear equally.So when depressing the single control pedal, depress again when being cut off the acceleration/accel pedal of Fuel supply system by the single control pedal, the function that can set up to the acceleration/accel pedal automatic engage a gear this moment, further to improve this integrated master cylinder requirement is controlled in the simplification of automobile, or satisfied chaufeur to a kind of demand of automatic control.
The integrated control of Clutch and brake that employing is realized by this integrated master cylinder, can concentrate and use one or at least one booster device, can further reduce integral vehicle cost, further reaching the better ratio of performance to price, and further improve the requirement of the market competitiveness.
Claims (9)
1. integrated master cylinder of leading center control of valve position formula, it comprises cylinder body, cylinder body is provided with oil can (1), it is characterized in that: described rear end of the cylinder block sealing, front opening is provided with in the cylinder body for the clutch general pump of control clutch and the master brake cylinder that is used for the control front and back wheel, and clutch general pump and master brake cylinder all are connected with oil can (1), the sidewall of clutch general pump and master brake cylinder is equipped with oil discharge outlet, is provided with the keying valve of its keying of control in the oil discharge outlet of master brake cylinder sidewall.
2. the integrated master cylinder of leading center control of valve position formula according to claim 1, it is characterized in that: described master brake cylinder comprises the first brake pump and the second brake pump, the sidewall of the first brake pump is provided with the first braking oil discharge outlet (2), and the sidewall of the second brake pump is provided with the second braking oil discharge outlet (3); Clutch general pump, the first brake pump and the second brake pump are equipped with for the break-make structure that connects oil can (1).
3. the integrated master cylinder of leading center control of valve position formula according to claim 2 is characterized in that: be provided with successively from front to back clutch piston (4), clutch epitrochoidal chamber (5), transition piston (6), the first brake piston (7), the first braking epitrochoidal chamber (8), the second brake piston (9) and the second braking epitrochoidal chamber (10) in the described cylinder body;
Be provided with the first retracing spring (11) between clutch piston (4) and clutch epitrochoidal chamber (5) and transition piston (6) composition clutch general pump and clutch piston (4) and the transition piston (6); The first brake piston (7) is installed in the rear end of transition piston (6), the first brake piston (7) forms the first brake pump with the first braking epitrochoidal chamber (8) and the second brake piston (9), is provided with the second retracing spring (12) between the first brake piston (7) and the second brake piston (9); The second brake piston (9) forms the second brake pump with the rear end of the second braking epitrochoidal chamber (10) and cylinder body, is provided with the 3rd retracing spring (14) between the rear end of the second brake piston (9) and cylinder body.
4. the integrated master cylinder of leading center control of valve position formula according to claim 3, it is characterized in that: described break-make structure for connecting oil can (1) refers to respectively, the inwall of clutch epitrochoidal chamber (5) is provided with eccentric interior step groove (16), should locate to be provided with the first seal ring (17) by interior step groove (16), the front side of the first seal ring (17) is provided with the first oil duct (18) that is communicated with oil can (1); Be provided with transition epitrochoidal chamber (13) between transition piston (6) and the first brake piston (7), transition epitrochoidal chamber (13) is communicated with oil can (1) through the second oil duct (19); The second brake piston (9) is provided with annular opening groove (15), and annular opening groove (15) is communicated with oil can (1).
5. the integrated master cylinder of the described leading center control of valve position formula of any one according to claim 1-4, it is characterized in that: described cylinder body is comprised of rear-bank rotor housing (20) and the front-bank rotor housing (21) that forward and backward two sections internal diameters vary in size, and rear-bank rotor housing (20) is connected 21 with front-bank rotor housing) connect through bolted; Clutch general pump is positioned at front-bank rotor housing (21), and master brake cylinder is positioned at rear-bank rotor housing (20).
6. the integrated master cylinder of leading center control of valve position formula according to claim 5, it is characterized in that: described keying valve comprises valve rod (22), fork (23) and push rod (24), valve rod (22) is provided with for the boss body (30) of blocking respectively the first braking oil discharge outlet (2) and the second braking oil discharge outlet (3), the bottom of rear-bank rotor housing (20) is provided with slide opening (25), valve rod (22) sliding fit is in slide opening (25), be provided with the pull back spring (26) that valve rod (22) is applied elastic force in the slide opening (25), the rear end of rear-bank rotor housing (20) is provided with pendulum hole (27), fork (23) is free to rotate to be installed in the pendulum hole (27), push rod (24) passes transition piston (6), the first brake piston (7) and the second brake piston (9) and through sealing member and their sliding fits, the front end of push rod (24) stretches out the front end of transition piston (6) and is provided with block (28), be provided with push rod spring (29) between block (28) and the transition piston (6), the rear end of one end of fork (23) and push rod (24) offsets, and the rear end of the other end and valve rod (22) offsets.
7. the integrated master cylinder of leading center control of valve position formula according to claim 6, it is characterized in that: the rear end of described clutch piston (4) is provided with axial mounting hole (4.1), be provided with the body of stepping down (4.2) and the spring of stepping down (4.3) in the mounting hole (4.1), step down body (4.2) and mounting hole (4.1) sliding fit and the spring (4.3) of will stepping down is pressed in the mounting hole (4.1), and it is outer and offset with limiting stopper in the mounting hole (4.1) that the first retracing spring (11) is enclosed within the body of stepping down (4.2).
8. the integrated master cylinder of leading center control of valve position formula according to claim 5, it is characterized in that: described keying valve comprises valve rod (22), valve rod (22) is provided with for the boss body (30) of blocking respectively the first braking oil discharge outlet (2) and the second braking oil discharge outlet (3), the bottom of rear-bank rotor housing (20) is provided with slide opening (25), valve rod (22) sliding fit is in slide opening (25), be provided with the pull back spring (26) that valve rod (22) is applied elastic force in one end of slide opening (25), the other end is communicated with clutch epitrochoidal chamber (5) through oil pipe (32).
9. the integrated master cylinder of leading center control of valve position formula according to claim 5, it is characterized in that: described keying valve is electromagnetic valve (33) and push rod (24), one end of push rod (24) is connected with clutch piston (4), described electromagnetic valve (33) first braking oil discharge outlets (2) are braked oil discharge outlet (3) connection with being connected, and the open-close on-off (34) of electromagnetic valve (33) is docked with the other end of push rod (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210342419.6A CN103010196B (en) | 2012-09-16 | 2012-09-16 | Pilot central valve position control type integrated master pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210342419.6A CN103010196B (en) | 2012-09-16 | 2012-09-16 | Pilot central valve position control type integrated master pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103010196A true CN103010196A (en) | 2013-04-03 |
| CN103010196B CN103010196B (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210342419.6A Expired - Fee Related CN103010196B (en) | 2012-09-16 | 2012-09-16 | Pilot central valve position control type integrated master pump |
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| Country | Link |
|---|---|
| CN (1) | CN103010196B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104742738A (en) * | 2015-04-07 | 2015-07-01 | 重庆电讯职业学院 | Automobile clutching and braking integrated device |
| CN107738637A (en) * | 2017-11-15 | 2018-02-27 | 宁波市鄞州堃信工业产品设计有限公司 | The integrated total pumping system of control of pressure difference side valve type braking clutch |
| CN112455225A (en) * | 2020-12-04 | 2021-03-09 | 安徽江淮汽车集团股份有限公司 | Hydraulic control gas valve and automobile brake control system |
| CN113002506A (en) * | 2021-03-29 | 2021-06-22 | 安徽江淮汽车集团股份有限公司 | Hydraulic control air valve and automobile brake control system |
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| US5101945A (en) * | 1991-04-22 | 1992-04-07 | Scott James S | (Clutch-brake pedal) brake system |
| US5452779A (en) * | 1994-03-01 | 1995-09-26 | Eaton Corporation | Dual piston hydraulic cylinder for clutch and upshift brake actuator |
| CN102139684A (en) * | 2011-02-23 | 2011-08-03 | 尹钢 | Single-control vehicle brake device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1425470A (en) * | 1972-06-08 | 1976-02-18 | Automotive Prod Co Ltd | Fluid pressure operated clutch release mechanism |
| US5101945A (en) * | 1991-04-22 | 1992-04-07 | Scott James S | (Clutch-brake pedal) brake system |
| US5452779A (en) * | 1994-03-01 | 1995-09-26 | Eaton Corporation | Dual piston hydraulic cylinder for clutch and upshift brake actuator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104742738A (en) * | 2015-04-07 | 2015-07-01 | 重庆电讯职业学院 | Automobile clutching and braking integrated device |
| CN104742738B (en) * | 2015-04-07 | 2018-02-02 | 重庆电讯职业学院 | Automatic clutch and braking equipment integrating |
| CN107738637A (en) * | 2017-11-15 | 2018-02-27 | 宁波市鄞州堃信工业产品设计有限公司 | The integrated total pumping system of control of pressure difference side valve type braking clutch |
| CN107738637B (en) * | 2017-11-15 | 2024-04-30 | 山西通盛达机械有限公司 | Differential pressure slide valve type braking clutch integrated control master cylinder system |
| CN112455225A (en) * | 2020-12-04 | 2021-03-09 | 安徽江淮汽车集团股份有限公司 | Hydraulic control gas valve and automobile brake control system |
| CN113002506A (en) * | 2021-03-29 | 2021-06-22 | 安徽江淮汽车集团股份有限公司 | Hydraulic control air valve and automobile brake control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103010196B (en) | 2015-01-28 |
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