CN109720317A - Braking system for vehicle - Google Patents
Braking system for vehicle Download PDFInfo
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- CN109720317A CN109720317A CN201711049318.9A CN201711049318A CN109720317A CN 109720317 A CN109720317 A CN 109720317A CN 201711049318 A CN201711049318 A CN 201711049318A CN 109720317 A CN109720317 A CN 109720317A
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- oil
- brake
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- vehicle
- pressure
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- 239000002828 fuel tank Substances 0.000 claims abstract description 27
- 238000005259 measurement Methods 0.000 claims abstract description 18
- 230000001737 promoting effect Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 63
- 229910018904 PSV1 Inorganic materials 0.000 description 11
- 229910018888 PSV2 Inorganic materials 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
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- Regulating Braking Force (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The present invention relates to the braking systems for vehicle, comprising: spur units can promote the wheel cylinder of vehicle to brake the wheel of vehicle using brake oil；Brake oil in fuel tank can be supplied to spur units via the first pipeline by the first oil supply unit；Second oil supply unit can provide the brake oil of first pressure to spur units via the first pipeline, and first pressure is greater than in the pressure not to the brake oil before vehicle braking in the first pipeline；Parameter measurement unit, when for trampling the brake pedal of vehicle as driver, measurement is used to indicate the parameter of the braking requirement amount of driver；Controller, for when driver tramples brake pedal, the first and second oil supply units of control to provide brake oil to spur units via the first pipeline, until the pressure of the brake oil in the first pipeline reaches pressure corresponding with braking requirement amount indicated by the parameter.The braking system can improve the braking ability of vehicle.
Description
Technical field
The present invention relates to vehicular fields, the more particularly, to braking system of vehicle.
Background technique
Present vehicle usually all has braking system, to stop to moving traffic progress braking action of vehicle and driving
Only.
Current braking system usually utilizes vacuum booster or motor that the brake oil in the fuel tank for storing brake oil is defeated
Each wheel cylinder of vehicle is sent to assist operator brake vehicle, to realize quickly stopping and mitigate driving for vehicle
The physical strength that member pays when braking to vehicle.
If the vacuum booster or the motor generation event that are used to help driver and build pressure in brake piping in braking system
Barrier, then driver, which can only rely on manpower by trampling the brake pedal of vehicle, will store brake oil in the fuel tank of brake oil
It is transported to each wheel cylinder of vehicle, this meeting is so that the braking time and braking distance of vehicle extend, so as to cause vehicle
Braking ability reduces.
Summary of the invention
The embodiment of the present invention provides a kind of braking system for vehicle, can improve the braking ability of vehicle.
A kind of braking system for vehicle of embodiment according to the invention, comprising: spur units can utilize system
Dynamic oil promotes the wheel cylinder of vehicle to brake the wheel of the vehicle；First oil supply unit, can be via first
The brake oil for being used to store in the fuel tank of brake oil is supplied to the spur units by pipeline；Second oil supply unit, can be through
The brake oil of first pressure is provided from first pipeline to the spur units, the first pressure is greater than not to the vehicle
Braking the first pipeline of the foregoing description in brake oil pressure；Parameter measurement unit, described in being trampled as the driver
When the brake pedal of vehicle, measurement is used to indicate the parameter of the braking requirement amount of the driver；And controller, for working as
When the driver tramples the brake pedal, first oil supply unit and second oil supply unit are controlled via described the
One pipeline provides brake oil to the spur units, until the pressure of the brake oil in first pipeline reaches and the parameter
The indicated corresponding pressure of the braking requirement amount.
From the above, it can be seen that the braking system of the embodiment of the present invention have can be in abrupt deceleration vehicle to the system of vehicle
Driving wheel cylinder provides the second oil supply unit of high-pressure brake oil, thus the pressure of brake oil used in the wheel cylinder of vehicle can
Goal pressure is rapidly reached, thus reduce the braking time and braking distance of vehicle, therefore, compared with prior art, this
The scheme of invention can be improved the braking ability of vehicle.
Detailed description of the invention
Feature of the invention, feature, advantage and benefit will become obvious by the detailed description below in conjunction with attached drawing.
Fig. 1 shows the configuration diagram of the braking system of one embodiment according to the invention.
Fig. 2 shows the schematic diagrames of the course of work of the braking system of one embodiment according to the invention.
Fig. 3 shows the schematic diagram of the braking system of one embodiment according to the invention.
Specific embodiment
In the following, in conjunction with each embodiment of attached drawing detailed description of the present invention.
Fig. 1 shows the configuration diagram of the braking system of one embodiment according to the invention.As shown in Figure 1, braking
System 10 may include parameter measurement unit 20, the first oil supply unit 30, the second oil supply unit 40, spur units 50 and controller
60。
Parameter measurement unit 20 is used for when driver tramples the brake pedal 70 of vehicle, and measurement is used to indicate driver's
The parameter of braking requirement amount.Parameter measurement unit 20 may include master cylinder 202, pedal force simulator 204, simulator control valve
206, pedal travel sensor 208 and master cylinder pressure sensor 210.
The piston rod of master cylinder 202 is connect with brake pedal 70, and the brake oil input terminal of master cylinder 202 is connected to storage brake oil
Fuel tank 80, and, the brake oil output end of master cylinder 202 is connected to pedal force simulator 204 via simulator control valve 206.
Before brake pedal 70 is not trampled by driver, the piston rod of master cylinder 202 is in initial position, the brake oil in fuel tank 80
Enter the inner cavity of master cylinder 202 via the brake oil input terminal of master cylinder 202.When brake pedal 70 is trampled by driver, master cylinder 202
Piston rod moved since initial position with being operated for brake pedal 70, to oppress in the inner cavity of master cylinder 202
Brake oil is flowed out from the brake oil output end of master cylinder 202, and enters pedal force simulator 204 via simulator control valve 206.
When driver unclamps the brake pedal 70 being operated, as brake pedal 70 returns to its initial position, the piston rod of master cylinder 202
Its initial position is also returned to, so that the brake oil in fuel tank 80 can enter master cylinder via the brake oil input terminal of master cylinder 202 again
202 inner cavity.Pedal travel sensor 208 detects brake pedal 70 by the moving distance of the piston rod of measurement master cylinder 202
Stroke.Master cylinder pressure sensor 210 detects master cylinder by measuring the brake oil flowed out from the brake oil output end of master cylinder 202
202 braking oil pressure.Here, the braking oil pressure of master cylinder 202 measured by master cylinder pressure sensor 210 and pedal travel pass
The stroke of brake pedal 70 measured by sensor 208 is the parameter for indicating the braking requirement amount of driver.
First oil supply unit 30 can mention the brake oil in fuel tank 80 via pressure pipe road (the first pipeline) JY1 and JY2 is built
Supply spur units 50.First oil supply unit 30 includes manpower oil supply unit 32 and electronic oil supply unit 36.Manpower oil supply unit
Brake oil in fuel tank 80 is supplied to spur units 50 using the manpower of driver by 32.Electronic oil supply unit 36 utilizes vacuum
Brake oil in fuel tank 80 is supplied to spur units 50 by booster or motor.
Manpower oil supply unit 32 may include master cylinder 202, control valve CSV1 and control valve CSV2.The brake oil of master cylinder 202
Output end, which is connected to build pressure pipe road JY1 and be connected to via control valve CSV2 via control valve CSV1, builds pressure pipe road JY2.It is controlling
In the case that valve CSV1 and CSV2 is in the open state, when brake pedal 70 is trampled by driver, the piston rod of master cylinder 202
Brake oil in the mobile inner cavity to oppress master cylinder 202 is flowed out from the brake oil output end of master cylinder 202, and via control valve CSV1
It is separately flowed into CSV2 and builds pressure pipe road JY1 and JY2.
Electronic oil supply unit 36 includes vacuum booster or motor 362, piston cylinder 364, control valve PSV1, control valve PSV2
With pressure sensor Ps_SP.
Vacuum booster or motor 362 are connect with the piston rod of piston cylinder 364.When vacuum booster or motor 362 rotate forward
When, the piston rod that vacuum booster or motor 362 will drive piston cylinder 364 moves away its initial position.Work as vacuum booster
Or when the reversion of motor 362, vacuum booster or motor 362 will drive its initial position of the piston rod movement return of piston cylinder 364.
The brake oil input terminal of piston cylinder 364 is connected to fuel tank 80, and, the brake oil output end difference of piston cylinder 364
It is connected to via control valve PSV1 and PSV2 and builds pressure pipe road JY1 and JY2.When underfill brake oil is simultaneously in the inner cavity of piston cylinder 364
And the piston rod of piston cylinder 364, when being in its initial position, the brake oil in fuel tank 80 is inputted via the brake oil of piston cylinder 364
End is flowed into the inner cavity of piston cylinder 364.In the case where control valve PSV1 and PSV2 in the open state, when piston cylinder 364
System when piston rod moves away its initial position under the drive of vacuum booster or motor 362, in the inner cavity of piston cylinder 364
Dynamic oil, which is oppressed to be flowed into, builds pressure pipe road JY1 and JY2.In the case where control valve PSV1 and PSV2 in the open state, pressure
Sensor Ps_SP builds pressure pipe road JY1 and JY2 by measuring the brake oil of the brake oil output end outflow of piston cylinder 364 to detect
In brake oil pressure.
Here, if there is no failures for vacuum booster or motor 362 in electronic oil supply unit 36, using electronic
Brake oil in fuel tank 80 is supplied to spur units 50 by oil supply unit 36, on the contrary, if vacuum in electronic oil supply unit 36
Booster or motor 362 break down, then the brake oil in fuel tank 80 are supplied to spur units using manpower oil supply unit 32
50.Which of electronic oil supply unit 36 and manpower oil supply unit 32 of specifically used first oil supply unit 30 are come to actuating list
Member 50 provides brake oil, is controlled by controller 60.
Second oil supply unit 40 can have pressure (the first pressure via building pressure pipe road JY1 and JY2 and providing to spur units 50
Power) FP1 high-pressure brake oil, wherein pressure FP1 is greater than builds braking in pressure pipe road JY1 and JY2 before not to vehicle braking
The pressure of oil.
Second oil supply unit 40 may include oil storage tank 402, control valve 404 and control valve 406.The storage pressure of oil storage tank 402
The high-pressure brake oil of power FP1, and be connected to via control valve 404 respectively and control valve 406 and build pressure pipe road JY1 and JY2.Work as needs
When second oil supply unit 40 provides brake oil to spur units 50, control valve 404 and 406 is in the open state by control, thus
High-pressure brake oil in oil storage tank 402 is flowed into via control valve 404 and 406 builds pressure pipe road JY1 and JY2, and then is flowed into rush
Moving cell 50.The opening and closing of control valve 404 and 406 are controlled by controller 60.
Spur units 50 can promote the wheel cylinder of vehicle to vehicle using the brake oil built in pressure pipe road JY1 and JY2
Each wheel braked.
Spur units 50 include liquid valve behind liquid feed valve 506, the right side behind left front liquid feed valve 502, left front liquid valve 504, the right side
508, left back liquid feed valve 510, left back liquid valve 512, it is right before liquid valve 516 before liquid feed valve 514 and the right side.
Left front liquid feed valve 502, which is connected to, to be built between pressure pipe road JY1 and the wheel cylinder CLF of the near front wheel 90, and, left front liquid valve
504 are connected between the wheel cylinder CLF of the near front wheel 90 and fuel tank 80.When to be braked to the near front wheel 90, left front feed liquor
Valve 502 is opened to be closed with left front liquid valve 504, so that the brake oil built in the JY1 of pressure pipe road is provided to wheel cylinder CLF
To brake the near front wheel 90.When not braking to the near front wheel 90, left front liquid feed valve 502 is closed and left front 504 quilt of liquid valve
It opens, builds pressure pipe road JY1 and be supplied to the brake oil of wheel cylinder CLF and flow back into fuel tank 80 via left front liquid valve 504, to make
Driving wheel cylinder CLF does not brake the near front wheel 90.
Liquid feed valve 506, which is connected to, behind the right side builds between pressure pipe road JY1 and the wheel cylinder CRR of off hind wheel 92, and, go out after right
Liquid valve 508 is connected between the wheel cylinder CRR of off hind wheel 92 and fuel tank 80.When to be braked to off hind wheel 92, after right
Liquid valve 508 is closed after liquid feed valve 506 is opened and is right, so that the brake oil built in the JY1 of pressure pipe road is provided to braked wheel
Cylinder CRR is to brake off hind wheel 92.When not braked to off hind wheel 92, liquid valve after liquid feed valve 506 is closed and is right behind the right side
508 are opened, and build pressure pipe road JY1 and are supplied to the brake oil of wheel cylinder CRR and flow back into fuel tank 80 via liquid valve 508 behind the right side,
To which wheel cylinder CRR does not brake off hind wheel 92.
Left back liquid feed valve 510, which is connected to, to be built between pressure pipe road JY2 and the wheel cylinder CLR of left rear wheel 94, and, it is left back go out
Liquid valve 512 is connected between the wheel cylinder CLR of left rear wheel 94 and fuel tank 80.It is left back when to be braked to left rear wheel 94
Liquid feed valve 510 is opened to be closed with left back liquid valve 512, so that the brake oil built in the JY2 of pressure pipe road is provided to braked wheel
Cylinder CLR is to brake left rear wheel 94.When not braking to left rear wheel 94, left back liquid feed valve 510 is closed and left back liquid valve
512 are opened, and build pressure pipe road JY2 and are supplied to the brake oil of wheel cylinder CLR and flow back into fuel tank 80 via left back liquid valve 512,
To which wheel cylinder CLR does not brake left rear wheel 94.
Liquid feed valve 514, which is connected to, before the right side builds between pressure pipe road JY2 and the wheel cylinder CRF of off-front wheel 96, and, go out before right
Liquid valve 516 is connected between the wheel cylinder CRF of off-front wheel 96 and fuel tank 80.When to be braked to off-front wheel 96, before right
Liquid valve 516 is closed before liquid feed valve 514 is opened and is right, so that the brake oil built in the JY2 of pressure pipe road is provided to braked wheel
Cylinder CRF is to brake off-front wheel 96.When not braked to off-front wheel 96, liquid valve before liquid feed valve 514 is closed and is right before the right side
516 are opened, and build pressure pipe road JY2 and are supplied to the brake oil of wheel cylinder CRF and flow back into fuel tank 80 via liquid valve 516 before the right side,
To which wheel cylinder CLR does not brake off-front wheel 96.
Controller 60 is used for when driver tramples brake pedal 70, controls the first oil supply unit 30 and the second oil supply unit
40 provide brake oil to spur units 50 via building pressure pipe road JY1 and JY2, until the brake oil built in pressure pipe road JY1 and JY2
Pressure corresponding with the braking requirement amount of driver indicated by the parameter that parameter measurement unit 20 measures that pressure reaches.
Fig. 2 shows the schematic diagrames of the course of work of the braking system of one embodiment according to the invention.Below with reference to
Braking system 10 shown in FIG. 1 is described in detail the course of work 700 of braking system 10 shown in Fig. 2.
As shown in Fig. 2, the system initialization in box 702, when vehicle stops or before the engine ignition of vehicle
When, controller 60 controls the first oil supply unit 30 to 40 fuel feeding of the second oil supply unit.
Specifically, controller 60 make control valve CSV1 and CSV2, left front liquid feed valve 502, it is right after liquid feed valve 506, left back
Liquid feed valve 514 is in close state before liquid feed valve 510 and the right side, so that control valve PSV1, PSV2,404 and 406 are in open shape
State, and, control vacuum booster or motor 362 rotate forward so that piston cylinder 364 by the brake oil in fuel tank 80 via control
Valve PSV1 and PSV2, which are input to, builds pressure pipe road JY1 and JY2, build detected by the pressure sensor Ps_SP pressure pipe road JY1 and
The pressure of brake oil in JY2 reaches pressure FP1.In the process, since control valve 404 and 406 is in the open state,
A part that piston cylinder 364 is input in the brake oil for building pressure pipe road JY1 and JY2 also enters into oil storage tank 402, until oil storage tank
402 pressure also reaches pressure FP1.Reach pressure FP1 (i.e. oil storage tank in the pressure for the brake oil built in pressure pipe road JY1 and JY2
402 pressure reaches pressure FP1) after, controller 60 is in close state control valve 404 and 406.Making control valve
After 404 and 406 are in close state, controller 60 controls vacuum booster or motor 362 is inverted such that piston cylinder 364 will
It builds brake oil in pressure pipe road JY1 and JY2 and returns to oil dropping apparatus 80, build pressure pipe road detected by the pressure sensor Ps_SP
The pressure of brake oil in JY1 and JY2 reaches the scheduled pressure value smaller than pressure FP1, and then, controller 60 makes control valve
PSV1 and PSV2 is in close state and controls vacuum booster or motor 362 stops working.
In box 704, when the intention of abrupt deceleration vehicle is thought in the sending of brake pedal 70 that driver tramples vehicle, parameter measurement
Pedal travel sensor 208 and master cylinder pressure sensor 210 in unit 20 measure the stroke and master cylinder of brake pedal 70 respectively
202 braking oil pressure is simultaneously sent to controller 60, and, controller 60 make left front liquid feed valve 502 in spur units 50,
Liquid feed valve 514 is in the open state before liquid feed valve 506, left back liquid feed valve 510 and the right side behind the right side and makes left front liquid valve 504, the right side
Liquid valve 516 is in close state before liquid valve 508, left back liquid valve 512 and the right side afterwards.
In box 706, controller 60 is according to the pedal travel sensor 208 and master cylinder pressure biography in parameter measurement unit 20
The braking oil pressure of the stroke of brake pedal 70 and master cylinder 202 measured by sensor 210, calculating are built in pressure pipe road JY1 and JY2
Brake oil goal pressure Targ to be achieved.Such as, but not limited to, controller 60 be stored in advance brake pedal 70 stroke and
The various combination of the braking oil pressure of master cylinder 202 and the mapping of the goal pressure for the brake oil built in pressure pipe road JY1 and JY2 are closed
System, then, in the stroke and master cylinder 202 for obtaining brake pedal 70 from pedal travel sensor 208 and master cylinder pressure sensor 210
Braking oil pressure after, controller 60 according to the mapping relations that are stored calculate with the stroke of acquired brake pedal 70 and
The corresponding pressure of the braking oil pressure of master cylinder 202, as the brake oil target pressure to be achieved built in pressure pipe road JY1 and JY2
Power Targ.
In box 708, controller 60 controls both the first oil supply unit 30 and the second oil supply unit 40 to spur units 50
Supply brake oil.
For the second oil supply unit 40, controller 60 makes control valve 404 and 406 in the open state first.Due to storage
The pressure of brake oil in oil tank 402 is pressure FP1, is greater than the system built in pressure pipe road JY1 and JY2 before to vehicle braking
The pressure of oil is moved, therefore, the brake oil in oil storage tank 402 is input to via open control valve 404 and 406 builds pressure pipe road JY1
And JY2, and then it is supplied to spur units 50.Then, reach target pressure in the pressure for the brake oil built in pressure pipe road JY1 and JY2
After power Targ, controller 60 is in close state control valve 404 and 406, to prevent the brake oil in oil storage tank 402
It is input to and builds pressure pipe road JY1 and JY2.In one aspect, it if brake force needed for each wheel of vehicle is not identical, controls
Device 60 is it is also possible that control valve 404 and control valve 406 have different opening degrees, so that oil storage tank 402 is input to and builds
The quantity and oil storage tank 402 of the brake oil of pressure pipe road JY1 be input to build the brake oil of pressure pipe road JY2 quantity it is not identical.
For with the first oil supply unit 30, the manpower oil supply unit 32 in the first oil supply unit 30 is can be used in controller 60
Or electronic oil supply unit 36 supplies brake oil to spur units 50.
Wherein, the vacuum booster included by electronic oil supply unit 36 or motor 362 be there is no in the case where failure,
Controller 60 supplies brake oil to spur units 50 using the electronic oil supply unit 36 in the first oil supply unit 30.Specifically,
Controller 60 is in close state control valve CSV1, CSV2,404 and 406, opens so that control valve PSV1 and PSV2 are in
State, and, control vacuum booster or motor 362 rotate forward so that piston cylinder 364 by the brake oil in fuel tank 80 via control
Valve PSV1 and PSV2 processed, which is input to, builds pressure pipe road JY1 and JY2, then, builds pressure pipe road detected by the pressure sensor Ps_SP
After the pressure of brake oil in JY1 and JY2 reaches goal pressure Targ, controller 60 is in control valve PSV1 and PSV2
Closed state and control vacuum booster or motor 362 stops working.
Wherein, in the case that the vacuum booster included by electronic oil supply unit 36 or motor 362 break down, control
Device 60 supplies brake oil to spur units 50 using the manpower oil supply unit 32 in the first oil supply unit 30.Specifically, it controls
Device 60 is in close state control valve PSV1, PSV2,404 and 406, and, it is beaten so that control valve CSV1 and CSV2 are in
Open state, to trample the process of the brake pedal 70 of vehicle in driver, master cylinder 202 is under the drive of brake pedal 70 from it
The brake oil of brake oil output end compressing outflow is input to via control valve CSV1 and CSV2 to be built in pressure pipe road JY1 and JY2, so
Afterwards, in the braking oil pressure of the master cylinder 202 detected of master cylinder pressure sensor 210 (at this point, it is also to build pressure pipe road JY1 and JY2
In brake oil pressure) reach goal pressure Targ after, controller 60 make control valve CSV1 and CSV2 be in close shape
State.
In box 710, the liquid feed valve before liquid feed valve 506, left back liquid feed valve 510 and the right side after its left front liquid feed valve 502, right
514 in the open state, spur units 50 begin to the brake oil built in pressure pipe road JY1 and JY2 being supplied to wheel cylinder
CLF, CRR, CLR and CRF are braked with the near front wheel, off hind wheel, left rear wheel and the off-front wheel to vehicle.
In box 712, when the foot of driver leaves the brake pedal 70 for no longer trampling vehicle, controller 60 to actuate
Left front liquid feed valve 502 in unit 50, left front liquid valve 504, it is right after liquid feed valve 506, it is right after liquid valve 508, left back liquid feed valve
510, left back liquid valve 512, it is right before liquid valve 516 is all in opening state before liquid feed valve 514 and the right side so that building pressure pipe road
JY1 and JY2 is supplied to the brake oil of wheel cylinder CLF, CRR, CLR and CRF via liquid valve behind left front liquid valve 504, the right side
508, liquid valve 516 returns to fuel tank 80 before left back liquid valve 512 and the right side, so that wheel cylinder CLF, CRR, CLR and CRF are no longer
The near front wheel, off hind wheel, left rear wheel and the off-front wheel of abrupt deceleration vehicle.
It can be seen from the above that braking system 10 has can be in abrupt deceleration vehicle due in the present embodiment
The second oil supply unit 40 of high-pressure brake oil, thus braking used in the wheel cylinder of vehicle are provided to the wheel cylinder of vehicle
The pressure of oil can rapidly reach goal pressure, to reduce the braking time and braking distance of vehicle, therefore, this implementation
The braking system 10 of example can be improved the braking ability of vehicle.
Other modifications
It will be appreciated by those skilled in the art that although in the above embodiments, the second oil supply unit 40 includes two controls
Valve 404 and 406 processed, however, the present invention is not limited thereto.In some other embodiment of the invention, the second oil supply unit
40 can also only include a control valve, wherein oil storage tank 402 included by the second oil supply unit 40 is via a control valve
It is connected to and builds pressure pipe road JY1 and JY2.
It will be appreciated by those skilled in the art that although in the above embodiments, the second oil supply unit 40 includes control valve
Pressure pipe road JY1 and JY2 is built so that oil storage tank 402 to be connected to, however, the present invention is not limited thereto.Of the invention other one
In a little embodiments, such as when the input terminal and output end of oil storage tank 402 inherently have control valve, the second oil supply unit 40
It can be not required to additionally include in this case, storing up for oil storage tank 402 to be connected to the control valve for building pressure pipe road JY1 and JY2
Oil tank 402 builds pressure pipe road JY1 and JY2 by itself having control valve to be connected to.
It will be appreciated by those skilled in the art that although in the above embodiments, there are two build pressure pipe to the tool of braking system 10
Road JY1 and JY2, wherein the brake oil built in the JY1 of pressure pipe road to vehicle a front-wheel and a rear-wheel brake when make
With, and, the brake oil built in the JY2 of pressure pipe road to vehicle another front-wheel and another rear-wheel brake when use,
However, the present invention is not limited thereto.In some other embodiment of the invention, braking system 10 for example only has one and builds
Pressure pipe road, wherein the brake oil built in pressure pipe road use when each wheel to vehicle is braked, alternatively, system
For example only for tool there are four pressure pipe road is built, each builds the brake oil in pressure pipe road in one of wheel to vehicle to dynamic system 10
Use when being braked.
Although it will be appreciated by those skilled in the art that in the above embodiments, being used to indicate the braking requirement of driver
The parameter of amount is the braking oil pressure of master cylinder 202 and the stroke of brake pedal 70, however, the present invention is not limited thereto.At this
In some other embodiment of invention, the parameter for being used to indicate the braking requirement amount of driver is also possible in addition to master cylinder 202
Other parameters except the stroke of braking oil pressure and brake pedal 70, alternatively, be used to indicate the braking requirement amount of driver
Parameter may include at least one of the braking oil pressure of master cylinder 202 and the stroke of brake pedal 70 and one or more of the other
The parameter of type.
Fig. 3 shows the schematic diagram of the braking system for vehicle of one embodiment according to the invention.Such as Fig. 3 institute
Show, the braking system 800 for vehicle may include spur units 802, the first oil supply unit 804, the second oil supply unit 806,
Parameter measurement unit 808 and controller 810.Spur units 802 can promote the wheel cylinder of vehicle to institute using brake oil
The wheel for stating vehicle is braked.Spur units 802 can be such as, but not limited to be realized by spur units 50.First fuel feeding
The brake oil for being used to store in the fuel tank of brake oil can be supplied to the spur units via the first pipeline by unit 804.The
One oil supply unit 804 can be such as, but not limited to be realized by the first oil supply unit 30.Second oil supply unit 806 can be via institute
It states the first pipeline and provides the brake oil of first pressure to spur units 802, the first pressure is greater than not to the vehicle system
The pressure of brake oil in dynamic the first pipeline of the foregoing description.Second oil supply unit 806 can be such as, but not limited to be supplied by second
Oily unit 40 is realized.Parameter measurement unit 808 is used for when the driver tramples the brake pedal of the vehicle, and measurement is used
In the parameter for the braking requirement amount for indicating the driver.Parameter measurement unit 808 can be such as, but not limited to be surveyed by parameter
Unit 20 is measured to realize.Controller 810 is used for when the driver tramples the brake pedal, controls the first oil supply unit
804 and second oil supply unit 806 via first pipeline to spur units 802 provide brake oil, until first pipeline
In the pressure of brake oil reach pressure corresponding with braking requirement amount indicated by the parameter.
In one aspect, the second oil supply unit 806 may include: at least one control valve；And oil storage tank, via
At least one described control valve is connected to first pipeline, also, described first is stored before to the vehicle braking
The brake oil of pressure, wherein when the driver tramples the brake pedal, controller 810 makes at least one described control
Valve processed is in the open state, so that the oil storage tank can be via at least one described control valve and first pipeline by institute
The brake oil for stating first pressure is supplied to spur units 802.
On the other hand, first pipeline includes the second pipeline and third pipeline, wherein in second pipeline
Brake oil by the use when promoting the wheel cylinder to a front-wheel of the vehicle and a rear-wheel of spur units 802, with
And the brake oil in the third pipeline by spur units 802 promote the wheel cylinder to the vehicle another before
It is used when wheel and another rear-wheel, and, at least one described control valve includes the first control valve and the second control valve, wherein
The oil storage tank is connected to second pipeline via first control valve, and, the oil storage tank is via second control
Valve processed is connected to the third pipeline.
In yet another aspect, when the brake force needed for each wheel of the vehicle is not identical, controller 810 makes institute
Stating the first control valve and second control valve has different opening degrees.
In another aspect, controller 810 is also used to when the stationary vehicle is motionless or when the vehicle carries out system
When initialization, so that at least one described control valve is in the open state and the first oil supply unit 804 of control is managed to described first
Road supply brake oil, and, when the pressure of the brake oil in first pipeline reaches the first pressure so that it is described extremely
A few control valve, which is in close state and controls the first oil supply unit 804, to be stopped supplying brake oil to first pipeline.
It will be understood by those skilled in the art that each embodiment disclosed in this invention can be in the feelings without departing from invention essence
Various modifications, modification and/or adjustment are made under condition, these deformation, modification and/or adjustment all fall in protection scope of the present invention it
It is interior.Therefore, protection scope of the present invention is defined by appended claims.
Claims (5)
1. a kind of braking system (800) for vehicle, comprising:
Spur units (802) can promote the wheel cylinder of vehicle to the wheel system of the vehicle using brake oil
It is dynamic；
First oil supply unit (804) can provide the brake oil for being used to store in the fuel tank of brake oil via the first pipeline
Give the spur units (802)；
Second oil supply unit (806) can provide first pressure to the spur units (802) via first pipeline
Brake oil, the first pressure are greater than in the pressure not to the brake oil in first pipeline of the vehicle braking foregoing description；
Parameter measurement unit (808), when for trampling the brake pedal of the vehicle as the driver, measurement is used to indicate institute
State the parameter of the braking requirement amount of driver；And
Controller (810), for controlling first oil supply unit (804) when the driver tramples the brake pedal
Brake oil is provided to the spur units (802) via first pipeline with second oil supply unit (806), until described
The pressure of brake oil in first pipeline reaches pressure corresponding with braking requirement amount indicated by the parameter.
2. braking system (800) as described in claim 1, wherein second oil supply unit (806) includes:
At least one control valve；And
Oil storage tank is connected to first pipeline via at least one described control valve, also, to the vehicle braking it
Before store the brake oil of the first pressure,
Wherein, when the driver tramples the brake pedal, the controller (810) makes at least one described control valve
It is in the open state, so that the oil storage tank can be via at least one described control valve and first pipeline by described
The brake oil of one pressure is supplied to the spur units (802).
3. braking system as claimed in claim 2, wherein
First pipeline includes the second pipeline and third pipeline, wherein the brake oil in second pipeline is actuated by described
Unit (802) use when promoting the wheel cylinder to a front-wheel of the vehicle and a rear-wheel, and, the third
Brake oil in pipeline by the spur units (802) promote the wheel cylinder to another front-wheel of the vehicle and another
It is used when one rear-wheel, and
At least one described control valve includes the first control valve and the second control valve, wherein the oil storage tank is via described first
Control valve is connected to second pipeline, and, the oil storage tank is connected to the third pipeline via second control valve.
4. braking system (800) as claimed in claim 3, wherein
When the brake force needed for each wheel of the vehicle is not identical, the controller makes first control valve and institute
The second control valve is stated with different opening degrees.
5. braking system (800) as claimed in claim 2, wherein
The controller (810) is also used to make when the stationary vehicle is motionless or when the vehicle carries out system initialization
At least one control valve described in obtaining is in the open state and controls the first oil supply unit (804) the first pipeline of Xiang Suoshu supply
Brake oil, and, when the pressure of the brake oil in first pipeline reaches the first pressure so that it is described at least one
Control valve, which is in close state and controls first oil supply unit (804), to be stopped supplying brake oil to first pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711049318.9A CN109720317A (en) | 2017-10-31 | 2017-10-31 | Braking system for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711049318.9A CN109720317A (en) | 2017-10-31 | 2017-10-31 | Braking system for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109720317A true CN109720317A (en) | 2019-05-07 |
Family
ID=66294245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711049318.9A Pending CN109720317A (en) | 2017-10-31 | 2017-10-31 | Braking system for vehicle |
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| Country | Link |
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| CN (1) | CN109720317A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111361535A (en) * | 2020-04-24 | 2020-07-03 | 吉林大学 | Integrated electronic hydraulic brake system |
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| CN103661328A (en) * | 2012-08-28 | 2014-03-26 | 日立汽车系统株式会社 | Brake control apparatus |
| KR101673772B1 (en) * | 2015-05-29 | 2016-11-07 | 현대자동차주식회사 | Electro-hydraulic brake system and method for controlling the same |
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| CN101987616A (en) * | 2009-07-29 | 2011-03-23 | 株式会社万都 | Electro-hydraulic brake system |
| CN102114834A (en) * | 2011-02-15 | 2011-07-06 | 清华大学 | X-type pipeline layout energy feedback type hydraulic antilock brake system for electric vehicle |
| CN102700537A (en) * | 2012-06-08 | 2012-10-03 | 清华大学 | Vehicle braking energy recovery system |
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