CN102745185B - Brake device for car - Google Patents
Brake device for car Download PDFInfo
- Publication number
- CN102745185B CN102745185B CN201210094250.7A CN201210094250A CN102745185B CN 102745185 B CN102745185 B CN 102745185B CN 201210094250 A CN201210094250 A CN 201210094250A CN 102745185 B CN102745185 B CN 102745185B
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- Prior art keywords
- auxiliary
- oil pressure
- fluid
- tube
- pipe
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
- B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
- B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
- B60T13/161—Systems with master cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
- B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
- B60T13/161—Systems with master cylinder
- B60T13/167—In combination with distributor valve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/26—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels
- B60T8/262—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels using valves with stepped characteristics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Regulating Braking Force (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The present invention relates to brake device for car, it comprises master cylinder portion; Wheel cylinder portion, is assemblied in multiple wheel respectively; Oil pressure pipe portion, introduces wheel cylinder portion respectively by the brake fluid in master cylinder portion amplification; Pumping section, is assemblied in oil pressure pipe portion, aspirates brake fluid by motor; Auxiliary oil pressure portion, is connected with oil pressure pipe portion and provides auxiliary fluid oil pressure to oil pressure pipe portion.Auxiliary oil pressure portion can increase the oil pressure of auxiliary fluid.
Description
Technical field
The present invention relates to brake device for car, the brake equipment oil pressure that the car that is specifically multiplied uses is for the brake device for car of commercial vehicle.
Background technology
Brake device for car generally provides braking force to wheel, and steer motor is stable to travel.
The ESC (ElectronicStabilityControl) of brake device for car be vehicle rotary and will exceed the maximum performance time, utilize oil pressure generation braking force, make the system of automobile movement stabilization.
Fig. 1 is the generalized schematic of traditional brake device for car.
According to Fig. 1, car brake device 1 possesses master cylinder 2 and wheel cylinder 3.
Possess oil pressure pipe 4 between master cylinder 2 and wheel cylinder 3, the oil pressure of amplification in master cylinder 2 is introduced wheel cylinder 3.
On the other hand, oil pressure pipe 4 is possessed by the pump 6 driven by motor 5.For controlling the attitude of car, when implementing braking to wheel cylinder 3, in pump 6, oil pressure is arrived wheel cylinder 3 by amplification.
Reservoir 7 forms the temporary storage space of master cylinder 2 brake fluid.
Described technical pattern is background technology of the present invention, contributes to understanding the present invention, does not refer to the conventional art that the technical field of the invention is generally understood.
Traditional brake device for car is as the commercial vehicle/comm..vehicles such as big bus use, and there is the problem that pressure needed for wheel cylinder cannot arrive rapidly because of the extension of oil pressure pipe.
Therefore this problem should be improved.
Summary of the invention
For improving described problem, the invention provides a kind of by power steering gear oil press, supplementing not enough oil pressure, make required oil pressure arrive rapidly the brake device for car of wheel cylinder.
For realizing described object, the invention provides a kind of brake device for car, it comprises master cylinder; Wheel cylinder portion, is assemblied in multiple wheel respectively; Oil pressure pipe portion, introduces described wheel cylinder portion respectively by the brake fluid in described master cylinder portion amplification; Pumping section, the motor possessed by described oil pressure pipe portion suction brake fluid; Auxiliary oil pressure portion, is connected with described oil pressure pipe portion and provides the oil pressure of auxiliary fluid to described oil pressure pipe portion.Described auxiliary oil pressure portion can increase the oil pressure of auxiliary fluid.
Described auxiliary oil pressure portion, comprising: auxiliary tank, comprises auxiliary fluid; Auxiliary pumping section, aspirates the auxiliary fluid be included in described auxiliary tank; Auxiliary cylinders portion, increases through the auxiliary fluid oil pressure that described auxiliary pumping section generates; First auxiliary tube, its one end is connected to described auxiliary tank portion, and the other end is connected with described auxiliary pumping section; Second auxiliary tube, one end is connected to described auxiliary pumping section, and the other end is connected with described auxiliary cylinders portion, possesses the second auxiliary valve; 3rd auxiliary tube, one end is connected to described second auxiliary tube, and the other end is connected with described auxiliary tank portion, possesses the 3rd auxiliary valve; 4th auxiliary tube, one end is connected to described auxiliary cylinders portion, and the other end is connected with described oil pressure pipe portion.
Described auxiliary cylinders portion, comprising: vat, and one end is connected to described second auxiliary tube; Little cylinder, is communicated with described vat, and its other end is connected with described 4th auxiliary tube, is formed and is less than vat; Large piston, is built in described vat, because being moved by the auxiliary fluid of described second auxiliary tube supply; Valve piston, is built in described little cylinder, configures separately with described large piston; Auxiliary pipe link, connects described large piston and described valve piston.
Described auxiliary cylinders portion, also comprises oil pressure survey sensor, is arranged on described vat, for measuring oil pressure.
Described auxiliary cylinders portion, also comprises elastomer-assisted, for providing resilient mounting to described valve piston.
Described auxiliary cylinders portion, also comprises exhaust tube, is connected and for displacement fluids with the described little cylinder between described large piston and described valve piston.
Described auxiliary tank portion, described auxiliary tank portion is power steering gear oil press.
The present invention relates to brake device for car is that brake fluid arrives wheel cylinder portion by the rapid supercharging in auxiliary oil pressure portion.
The present invention relates to brake device for car is by the oil pressure of sensor measurement auxiliary fluid, is sent to control part, makes control part regulate the driving of auxiliary pumping section in real time.
The present invention relates to brake device for car is form exhaust tube in auxiliary cylinders portion, prevents brake fluid from mixing mutually with auxiliary fluid.
The valve piston sectional area that the present invention relates to brake device for car is less than large piston, and auxiliary fluid increases at valve piston to the pressure that large piston transmits and is provided in brake fluid.
Accompanying drawing explanation
Fig. 1 is traditional brake device for car sketch plan schematic diagram;
Fig. 2 is the brake device for car generalized schematic of one embodiment of the invention;
Fig. 3 is the generalized schematic in auxiliary cylinders portion in the brake device for car of one embodiment of the invention;
Fig. 4 be in the brake device for car of one embodiment of the invention auxiliary cylinders portion by the state generalized schematic of auxiliary fluid supercharging.
Nomenclature
10: master cylinder portion 20: wheel cylinder portion
30: oil pressure pipe portion 31: the first manages
32: the second pipes 33: the three are managed
34: the four pipes 35: the five are managed
40: pumping section 50: auxiliary oil pressure portion
51: the first auxiliary tube 52: the second auxiliary tubes
53: the three auxiliary tube 54: the four auxiliary tubes
55: auxiliary tank portion 56; Auxiliary pumping section
57: auxiliary cylinders portion 71: vat
72: little cylinder 73: large piston
74: valve piston 75: auxiliary pipe link
76: sensor 77: elastomer-assisted
78: exhaust tube.
Detailed description of the invention
Below in conjunction with accompanying drawing, to the brake device for car embodiment that the present invention relates to, be described in detail.In description process, the line thickness in diagram or component size etc., for illustrating more simple and understanding, can exaggerate to some extent.Following term defines according to function of the present invention, can be different according to user, the intention of transporting user or convention.But these terms should define based on the full content of this specification sheets.
Fig. 2 is the generalized schematic of the brake device for car of one embodiment of the invention, Fig. 3 is the generalized schematic in auxiliary cylinders portion in the brake device for car of one embodiment of the invention, Fig. 4 be in the brake device for car of one embodiment of the invention auxiliary cylinders portion by the state generalized schematic of auxiliary fluid supercharging.
According to Fig. 2 to Fig. 4, the brake device for car 100 that one embodiment of the invention relates to possesses master cylinder portion 10, wheel cylinder portion 20, oil pressure pipe portion 30, pumping section 40, auxiliary oil pressure portion 50.
Master cylinder portion 10 supplies brake fluid accordingly with the displacement of brake pedal.
Wheel cylinder portion 20 is assemblied on multiple wheel, and the four wheels namely comprising common front-wheel and trailing wheel to multiple wheel provides braking force.
The brake fluid that master cylinder portion 10 supplies by oil pressure pipe portion 30 introduces wheel cylinder portion 20, and brake fluid uses brake noise.
Pumping section 40 is arranged on oil pressure pipe portion 30, is driven and aspirate brake fluid by motor 41.The brake fluid being stored in master cylinder portion 10 by the driving of pumping section 40 is, even if inoperation brake pedal, also can move to wheel cylinder portion 40.
Auxiliary oil pressure portion 50 is connected with oil pressure pipe portion 30.The oil pressure generated by auxiliary fluid is supplied to oil pressure pipe portion 30 by described auxiliary oil pressure portion 50.
The oil pressure pipe portion 30 of one embodiment of the invention possesses the first pipe 31, second pipe 32, the 3rd pipe 33, the 4th pipe 34 and the 5th pipe 35.
One end of the first pipe 31 is connected to master cylinder portion 10.Described first pipe 31 possesses the first valve 31a, for opening/closing first pipe 31.
First pipe 31 has to be connected to master cylinder portion 10 for a pair, and the second pipe 32 connecting each first pipe 31 guides brake fluid to the 5th pipe 35.Described first pipe 31 is identical to the configuration of the 5th pipe 35, is described below to the second pipe 32 connecting one of them the first pipe 31 to the 5th pipe 32.
Second pipe 32 is in first pipe 31 the other end branch.Described second pipe 32 is that one end is connected to the first pipe 31, and the other end is connected with the reservoir 60 of temporary reservoir brake fluid.
Second pipe 32 possesses the pumping section 40 of the brake fluid stored in suction master cylinder portion 10, and the second valve 32a of opening/closing second pipe 32.
3rd pipe 33 is connected to the second pipe 32.Described 3rd pipe 33 is connected with the second pipe 32 between the second valve 32a and pumping section 40.
4th pipe 34 is that one end is connected to the 3rd pipe 33, and the other end is connected with wheel cylinder portion 20.Described 4th pipe 34 is formed multiple, connects the wheel cylinder portion 20 that is assemblied in respectively on multiple wheel.Opening/closing 4th pipe 34 of 4th valve 34a.
5th pipe 35 is that one end is connected to the 4th pipe 34, and the other end is connected with the second pipe 32.Described 5th pipe 35 is connected to opening/closing 5th pipe 35 of each the 4th pipe the 34, five valve 35a.Multiple 5th pipe 35 can be polymerized connection second pipe 32 mutually.
First valve 31a, the second valve 32a, the 4th valve 34a and the 5th valve 35a regulate opening/closing amount by control part.Described control part implements monitoring to rotation of wheel state, with the opening/closing amount of control cock, and regulates the driving of pumping section 40 and motor 41.
3rd pipe 33 is connected to auxiliary oil pressure portion 50.Described auxiliary oil pressure portion 50 is connected with the 3rd pipe 33, increases the oil pressure of brake fluid.
Therefore, when the wheel cylinder portion 20 as Heavy Duty Commercial Cars such as big buses needs to control rapidly oil pressure, the oil pressure of brake fluid is increased by pumping section 40 and auxiliary oil pressure portion 50 and is moved to rapidly wheel cylinder 20.
The auxiliary oil pressure portion 50 of one embodiment of the invention possesses the first auxiliary tube 51 to the 4th auxiliary tube 54, auxiliary tank portion 55, auxiliary pumping section 56, auxiliary cylinders portion 57.
Auxiliary tank portion 55 comprises auxiliary fluid.Described auxiliary tank portion 55 uses power steering gear oil press.
Power steering gear oil press is for regulating wheel direction, and chaufeur can change wheel direction by power steering gear oil press and not cost power.
Auxiliary tank portion 55 can as storage of power steering hardware fuel tank, also can as the power steering gear transfer tube comprising power steering gear oil.
Auxiliary pumping section 56 aspirates the auxiliary fluid that auxiliary tank portion 55 comprises.Described auxiliary pumping section 56 is driven by control part and forces to transfer auxiliary fluid.
Auxiliary cylinders portion 57 is connected with oil pressure pipe portion 30 and provides the oil pressure of auxiliary fluid to oil pressure pipe portion 30.
The brake fluid in oil pressure pipe portion 30 is increased rapidly by pumping section 40 and auxiliary cylinders portion 57 oil pressure and moved to wheel cylinder portion 20.
First auxiliary tube 51 is that one end is connected to auxiliary tank portion 55, and the other end is connected to auxiliary pumping section 56.The auxiliary fluid be included in power steering gear oil press is introduced auxiliary pumping section 56 by described first auxiliary tube 51.
Second auxiliary tube 52 is that one end is connected to auxiliary pumping section 56, and the other end is connected with auxiliary cylinders portion 57.Described second auxiliary tube 52 is that the auxiliary fluid generated by auxiliary pumping section 56 is sent to auxiliary cylinders portion 57.
Second auxiliary tube 52 is possessed and is driven and the second auxiliary valve 52a of opening/closing second auxiliary tube 52 by control part.
3rd auxiliary tube 53 is that one end is connected to the second auxiliary tube 52, and the other end is connected with auxiliary tank portion 55.Auxiliary fluid is introduced auxiliary tank portion 55 by described 3rd auxiliary tube 53, prevents auxiliary fluid from incurring loss in auxiliary tank portion 55.
3rd auxiliary tube 53 is possessed and is driven and the 3rd auxiliary valve 53a of opening/closing 3rd auxiliary tube 53 by control part.
4th auxiliary tube 54 is that one end is connected to auxiliary cylinders portion 57, and the other end is connected with oil pressure pipe portion 30.The oil pressure of the auxiliary fluid generated from auxiliary oil pressure portion 50 is passed to oil pressure pipe portion 30 by described 4th auxiliary tube 54.
The auxiliary cylinders portion 57 of one embodiment of the invention possesses vat 71, little cylinder 72, large piston 73, valve piston 74 and auxiliary pipe link 75.
Vat 71 is that one end is connected to the second auxiliary tube 52 and flows into auxiliary fluid.Little cylinder 72 is that one end is communicated with the other end of vat 71, and the other end is connected with the 4th auxiliary tube 54 and flows into brake fluid.
The formation 72 of little cylinder is less than vat 71.Such as, vat 71 is be connected with drum with little cylinder 72, and the internal diameter of vat 71 is greater than little cylinder 72.
Large piston 73 is built in vat 71, mobile in vat 71.Described large piston 73 possesses the sealing-in 73a formed by the material comprising rubber and the medial surface be close in vat 71.
Valve piston 74 is built in little cylinder 72, mobile in little cylinder 72.Described valve piston 74 possesses the sealing-in 74a that formed by the material comprising rubber and is close to the medial surface of little cylinder 72.
The sectional area of large piston 73 is greater than the sectional area of valve piston 74, corresponding with the size of vat 71 and little cylinder 72.
Auxiliary pipe link 75 is that its both ends are connected to large piston 73 and valve piston 74.
Large piston 73 moves along valve piston 74 direction, then valve piston 74 moves along the 4th auxiliary tube 54 direction and increases the oil pressure of brake fluid.
Because of the difference of large piston 73 and valve piston 74 sectional area, the pressure putting on valve piston 74 is greater than the pressure putting on large piston 73.
Such as, brake fluid applies the pressure of 100bar to large piston 73, then large piston 73 is moved by the pressure of 100bar, and the valve piston 74 that sectional area is less than large piston 73 is, is applied the pressure increased than 100bar by brake fluid.
The auxiliary cylinders portion 57 of one embodiment of the invention also possesses sensor 76.Described sensor 76 is assemblied in vat 71 1 end, measures the oil pressure of the auxiliary fluid flowed into from the second auxiliary tube 52 and is sent to control part.In addition, sensor 76 can be arranged on the second auxiliary tube 52 can measuring auxiliary fluid oil pressure.
The auxiliary cylinders portion 57 of one embodiment of the invention also possesses provides flexibly mounted elastomer-assisted 77 to valve piston.
Described elastomer-assisted 77, between the other end and valve piston 74 of little cylinder 72, to move along the 4th auxiliary tube 54 direction with valve piston and shrinks.
The driving of auxiliary pumping section 56 stops the oil pressure then putting on large piston 73 to be removed.Be subject to restoring force expansion thereupon elastomer-assisted 77 and valve piston 74 is restored to the original state.
After valve piston 74 restores to the original state, the large piston 73 be attached thereto restores to the original state.
The auxiliary cylinders portion 57 of one embodiment of the invention also possesses exhaust tube 78.Described exhaust tube 78 is connected with the little cylinder 72 between large piston 73 and valve piston 74.
Exhaust tube 78 is guided the auxiliary fluid spilt from large piston 73 and is discharged to outside, auxiliary cylinders portion 57, guides the brake fluid spilt from valve piston 74 and discharges to outside, auxiliary cylinders portion 57.
Prevent brake fluid from mixing with the auxiliary fluid in auxiliary oil pressure portion 50 by exhaust tube, also prevent auxiliary fluid from mixing with the brake fluid in oil pressure pipe portion 30.
Below the effect of brake device for car of the one embodiment of the invention with described structure is described.
Connection master cylinder portion 10 and each wheel cylinder portion 20 possess auxiliary oil pressure portion 50 with the oil pressure pipe portion 30 guiding brake fluid.Described auxiliary oil pressure portion 50 comprises power steering gear auxiliary fluid.
In this condition, if control automobile attitude and each wheel cylinder portion 20 requires rapid braking force, then to be driven by motor 41 with pumping section 40 and be stored in the brake fluid in master cylinder portion 10, by by open the first pipe 31 of the first valve 31a, move to the second pipe 32.Now the second valve 32a can close the second pipe 32.
The brake fluid flowing into the second pipe 32 moves to the 4th pipe 34 be connected with each wheel cylinder portion 20 by the 3rd pipe 33, indivedual 4th valve 34a that multiple 4th pipe 34 possesses respectively are open, make brake fluid arrive wheel cylinder portion 20.
Such as, when the wheel cylinder portion 30 to off front wheel supplies brake fluid, the 4th valve 34a of the 4th pipe 34 be connected with the wheel cylinder portion 20 of off front wheel is open and make brake fluid arrive the wheel cylinder portion 20 of off front wheel.
If the wheel cylinder portion 20 not to the near front wheel supplies brake fluid, then the 4th valve 34a of the 4th pipe 34 be connected with the wheel cylinder portion 20 of the near front wheel closes and brake fluid cannot arrive the wheel cylinder portion 20 of the near front wheel.
If the oil pressure supplied to wheel cylinder portion 20 is excessive, then implemented to control by control part, make the 5th valve 35a of the 5th pipe 35 open and by brake fluid temporary reservoir to receiver 60.
On the other hand, auxiliary oil pressure portion 50 can increase the oil pressure of the brake fluid to the 3rd pipe 33 movement, therefore as Heavy Duty Commercial Cars such as big buses, even if the spacing in master cylinder portion 10 and wheel cylinder portion 20 is far away again, oil pressure still can arrive rapidly each wheel cylinder portion 20 and solve the deficiency of brake fluid.
Below the operative relation in described auxiliary oil pressure portion 50 is summarized.
After the control signal driving of auxiliary pumping section 56 with control part, be included in the auxiliary fluid in auxiliary tank portion 55, move to the second auxiliary tube 52 from the first auxiliary tube 51.Now, the second auxiliary valve 52a is open, and the 3rd auxiliary valve 53a closes.
Auxiliary cylinders portion 57 is moved to by the auxiliary fluid of auxiliary pumping section 56, afterburning to large piston 73.
Add pressure at auxiliary fluid, large piston 73 moves along valve piston 74 direction, then the brake fluid that the valve piston 74 connected therewith shrinks elastomer-assisted 77 and compresses in the 4th auxiliary tube 54.
Now, because large piston 73 sectional area is less than the sectional area of valve piston 74, the pressure putting on valve piston 74 can be greater than the pressure putting on large piston 73.Thereupon, brake fluid is provided in than the pressure of the pressure amplification more of auxiliary fluid.
The brake fluid compressed at the 4th auxiliary tube 54 moves to the 3rd pipe 33, mixes mutually with the brake fluid compressed by pumping section 40, is finally increase by pumping section 40 and auxiliary oil pressure portion 50 pressure and arrives wheel cylinder 20 thereupon brake fluid.
After the driving stopping of complementary pump 56, valve piston 74 gets back to original position by elastomer-assisted, and the large piston 73 be connected with valve piston 74 by auxiliary pipe link 75 also gets back to original position.Now, the second auxiliary valve 52a closes, and the 3rd auxiliary valve 53a is open and auxiliary fluid moves to auxiliary tank portion 55.
In addition, the sensor 76 providing the vat 71 of large piston 73 mobile space to possess measures the pressure of the auxiliary fluid flowed into by the second auxiliary tube 52.Gaging pressure is sent to control part by described sensor 76, and control part, according to the signal of sensor 76, regulates the driving of auxiliary pumping section 56.
Above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of technical scheme described in various embodiments of the present invention.
Claims (4)
1. a brake device for car, is characterized in that, comprising:
Master cylinder portion;
Wheel cylinder portion, is assemblied in multiple wheel respectively;
Oil pressure pipe portion, introduces described wheel cylinder portion respectively by the brake fluid in described master cylinder portion amplification;
Pumping section, is assemblied in described oil pressure pipe portion, aspirates brake fluid by motor; And
Auxiliary oil pressure portion, is connected to described oil pressure pipe portion, provides the oil pressure of auxiliary fluid to described oil pressure pipe portion;
Described auxiliary oil pressure portion increases the oil pressure of auxiliary fluid;
Described auxiliary oil pressure portion comprises: auxiliary tank portion, comprises auxiliary fluid;
Auxiliary pumping section, aspirates the auxiliary fluid be included in described auxiliary tank;
Auxiliary cylinders portion, is connected to described oil pressure pipe portion, increases through the oil pressure of the auxiliary fluid that described auxiliary pumping section generates;
First auxiliary tube, one end is connected to described auxiliary tank portion, and the other end is connected with described auxiliary pumping section;
Second auxiliary tube, one end is connected to described auxiliary pumping section, and the other end is connected with described auxiliary cylinders portion;
3rd auxiliary tube, one end is connected to described second auxiliary tube, and the other end is connected with described auxiliary tank portion, possesses the 3rd auxiliary valve;
4th auxiliary tube, one end is connected to described auxiliary cylinders portion, and the other end is connected with described oil pressure pipe portion;
Described auxiliary cylinders portion comprises:
Vat, one end is connected to described second auxiliary tube;
Little cylinder, is communicated with described vat, and the other end is connected with described 4th auxiliary tube, and its formation is less than described vat;
Large piston, is built in described vat, moves because of the auxiliary fluid by the second auxiliary tube supply;
Valve piston, is built in described little cylinder, configures separately with described large piston;
Auxiliary pipe link, connects described large piston and described valve piston;
Described auxiliary cylinders portion also comprises elastomer-assisted, for providing elastic support to described valve piston.
2. brake device for car according to claim 1, is characterized in that,
Described auxiliary cylinders portion also comprises oil pressure survey sensor, for measuring oil pressure, is installed on described vat.
3. brake device for car according to claim 1, is characterized in that,
Described auxiliary cylinders portion also comprises exhaust tube, for displacement fluids, is connected with the described little cylinder between described large piston and described valve piston.
4. the brake device for car according to item a certain in claim 2 to 3, is characterized in that,
Described auxiliary tank portion uses power steering gear oil press.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110036317A KR101767880B1 (en) | 2011-04-19 | 2011-04-19 | Brake device of vehicle |
| KR10-2011-0036317 | 2011-04-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102745185A CN102745185A (en) | 2012-10-24 |
| CN102745185B true CN102745185B (en) | 2016-03-23 |
Family
ID=47025802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210094250.7A Active CN102745185B (en) | 2011-04-19 | 2012-04-01 | Brake device for car |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101767880B1 (en) |
| CN (1) | CN102745185B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101566705B1 (en) * | 2013-05-29 | 2015-11-06 | 현대모비스 주식회사 | Electronic hydraulic brake device |
| KR101567842B1 (en) * | 2014-09-12 | 2015-11-11 | 현대모비스 주식회사 | Brake device for vehicle |
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- 2011-04-19 KR KR1020110036317A patent/KR101767880B1/en active IP Right Grant
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| CN101039829A (en) * | 2004-10-15 | 2007-09-19 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Brake system for motor vehicles |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20120118750A (en) | 2012-10-29 |
| KR101767880B1 (en) | 2017-08-16 |
| CN102745185A (en) | 2012-10-24 |
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