CN208006936U - A kind of automotive braking energy recovering device with pedal sense feedback - Google Patents
A kind of automotive braking energy recovering device with pedal sense feedback Download PDFInfo
- Publication number
- CN208006936U CN208006936U CN201820251986.3U CN201820251986U CN208006936U CN 208006936 U CN208006936 U CN 208006936U CN 201820251986 U CN201820251986 U CN 201820251986U CN 208006936 U CN208006936 U CN 208006936U
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- valve
- solenoid valve
- pedal
- master cylinder
- pressure
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Abstract
The utility model discloses a kind of automotive braking energy recovering devices with pedal sense feedback.Including brake pedal, master cylinder, lubricating cup, pedal simulator and hydraulic regulation unit, the piston rod of brake pedal and master cylinder connects, master cylinder includes front and back two chamber, two chambers of master cylinder are communicated with lubricating cup respectively, two chambers of master cylinder are connected after the first solenoid valve and second solenoid valve with the output end of pedal simulator respectively, two chamber of master cylinder is connected after third solenoid valve and the 4th solenoid valve with hydraulic regulation unit respectively, hydraulic regulation unit is connected with lubricating cup, and the output end of hydraulic regulation unit is connected to wheel cylinder.The utility model can not only simulate brake pedal feel identical with conventional truck, moreover it is possible to the pedal sense feedback specified to driver under specific operation, while braking energy is recycled to greatest extent, extend electro-motive vehicle continual mileage.
Description
Technical field
The utility model is related to the brake power recovering devices of vehicle, especially hybrid vehicle or pure electric vehicle
A kind of brake power recovering device with pedal sense feedback.
Background technology
New energy vehicle has become the important directions of auto industry sustainable development, with the flourishing hair of new energy vehicle
Exhibition, course continuation mileage have become an important factor for restricting new-energy automobile development, therefore the application of brake power recovering device and general
And it will be as irresistible trend.
Regular power retracting device has been generally used the design of full decoupling to ensure the pedal sense of driver.It drives
The braking intention of member is judged generally by master cylinder pressure sensor, pedal force sensor etc..But due to full decoupling knot
The pedal sense of structure, different road surfaces is completely the same, and the pedal sense difference under specific road conditions can not embody.It is low by taking ice and snow road as an example
Under attached operating mode, lower brake pressure will trigger ABS, but the high pressure that braking system can still be inputted according to driver is believed
Number input is adjusted, and leads to system hydraulic module load excessive, and loine pressure adjusts relatively rough, has one to part life
Fixing is rung.
Utility model content
In order to solve the problems, such as background technology, the utility model aim is to provide a kind of with pedal sense feedback
Automotive braking energy recovering device, not only can quick response, be accurately controlled brake pressure, efficiently recycle braking energy, also
Operator brake operating mode is reminded in the pedal feedback that can be specified to driver under specific operation, and induction driver is using correct
Braking maneuver reduce pressure to correct loine pressure and adjust load, achieve the purpose that protect pressure regulation parts.
To achieve the above object, the utility model solution is as follows：
The utility model includes that brake pedal, master cylinder, lubricating cup, pedal simulator and hydraulic regulation unit, braking are stepped on
The piston rod of plate and master cylinder connects, and master cylinder includes front and back two chamber, and two chambers of master cylinder are communicated with lubricating cup respectively, makes
Two chambers of dynamic master cylinder are connected after the first solenoid valve and second solenoid valve with the output end of pedal simulator respectively, master cylinder
Two chambers are connected after third solenoid valve and the 4th solenoid valve with hydraulic regulation unit respectively, hydraulic regulation unit and lubricating cup phase
Even, the output end of hydraulic regulation unit is connected to wheel cylinder.
The pedal simulator includes that motor, outer housing and lead screw, nut, simulator in outer housing are lived
Plug I, emulator piston II and pedal simulator spring, emulator piston I are placed in the middle part in outer housing by shell internal body portion
For two inner cavities, lead screw, nut are housed wherein in the first inner chamber of side, emulator piston is housed in the second inner chamber of the other side
II and pedal simulator spring, and filled with fluid；The output shaft of motor is extend into outer housing and, lead screw coaxially connected with lead screw
On be set with nut, nut through connecting rod structure is fixedly connected with emulator piston I, and emulator piston II is provided with central through hole, steps on
Plate simulator spring is connected between emulator piston II and the inner face of outer housing.The shell that pedal simulator spring is connected
Output end of the body end face middle opening as pedal simulator.
Motor work drives emulator piston I mobile back and forth horizontally in an axial direction in outer housing through screw pair so that
The volume of outer housing second inner chamber changes, and then changes the oil pressure of second inner chamber, through the first solenoid valve and second solenoid valve
Open two intracavitary that connection is transmitted to master cylinder so that the two cavity oil pressure of master cylinder changes and back and forth changes brake pedal
Feedback force realizes the simulation for being applied to feel on brake pedal.
The pressure difference thrust and pedal simulator spring that emulator piston II is generated in itself both ends different cross-sectional simultaneously
Under the action of pressure balance is moved and reached in second inner chamber, to realize fluid pressure variation pulsation adjustment.
Under specific operation, motor work drives emulator piston I horizontal in an axial direction in outer housing through screw pair
It is mobile so that the volume of outer housing second inner chamber increases or reduces, and then changes the oil pressure of second inner chamber, through the first solenoid valve or
Second solenoid valve is connected to two intracavitary for being transmitted to master cylinder so that the oil pressure of master cylinder rodless cavity changes and piston rod is made to push away
Dynamic or retraction so that load adjustable feedback force to brake pedal.
The hydraulic regulation unit includes high pressure accumulator, motor supercharging pump module, the first pressure regulator valve, the second pressure regulation
Valve, linear control valve and liquid valve, high pressure accumulator are connect with motor supercharging pump module, and motor supercharging pump module is connected to oil
Cup, high pressure accumulator are separately connected the input terminal connection of the first pressure regulator valve, the second pressure regulator valve, and third solenoid valve is connected to the first tune
The output end of pressure valve and the 4th solenoid valve are connected to the output end of the second pressure regulator valve；The output end of first pressure regulator valve distinguishes warp
Property control valve is connected to two of which wheel cylinder, and linear control valve is connected to other two to the output end of the second pressure regulator valve respectively
A wheel cylinder, four wheel cylinders are connected to lubricating cup through respective liquid valve.
Pressure source is provided by high pressure accumulator, the output of high pressure accumulator is divided into building for two-way high-pressure brake liquid and pushes back road,
Two-way, which is built, pushes back road respectively by the first pressure regulator valve, the pressure output and locking of the control of the second pressure regulator valve；First pressure regulator valve output the
After one builds and pushes back road, two wheel cylinders are communicated to through respective linear control valve respectively；Pressure is built in second pressure regulator valve output second
Behind circuit, other two wheel cylinder is communicated to through respective linear control valve respectively；High pressure accumulator is equipped with pressure sensor,
High pressure accumulator pressure is increased when the pressure that pressure sensor detects is less than threshold value by motor by pressure monitor sensor
Press pump module supplements pressure to threshold value or more to high pressure accumulator；Four independent wheel cylinder brake pressures via it is respective go out liquid
Valve, liquid valve, liquid valve and liquid valve are discharged to lubricating cup.
In the utility model, the brake fluid pressure that operator brake power is generated through pedal, master cylinder is by two groups of high-speed switch electricity
Magnet valve controls, and wheel cylinder can be acted on by hydraulic regulation unit, or act on pedal simulator.Private takes motor and passes through transmission
Mechanism is connected with pedal simulator, can not only realize that pedal sense is adjustable, but also under specific damped condition, can give brake pedal
Specific feedback.
The gain effect that the utility model has is：
Compared with routinely decoupling energy recycle device, the utility model is additionally arranged pedal simulator, passes through pedal simulator
Add the feedback function with driver's pedal brake pedal.Under special operation condition, by motor driven ball spindle gear,
Piston is pushed, accumulator cavity pressure is changed, is fed back to go out different pedal senses to driver, to improve braking effect, and can
It is dangerous to be prompted to driver.
The utility model is in addition to that can simulate brake pedal feel identical with conventional truck, moreover it is possible to be driven under specific operation
The pedal sense feedback that the person of sailing specifies, while braking energy is recycled to greatest extent, extend electro-motive vehicle continual mileage.
Also, the utility model, when automatically controlled device fails, all solenoid valve power-off, the present invention can retain hydraulic braking work(
Can, there is higher safety, reliability.
Description of the drawings
Fig. 1 is the general structure schematic diagram of the utility model.
Fig. 2 is the hydraulic schematic diagram of the utility model.
Fig. 3 is the pedal simulator partial schematic diagram of the utility model.
In figure：101, master cylinder, 102, pedal simulator, 103, hydraulic regulation unit, 104. lubricating cups, the 105, first electricity
Magnet valve, 106, second solenoid valve, 107, third solenoid valve, the 108, the 4th solenoid valve；201, high pressure accumulator, 202, motor increase
Press pump module, the 203, first pressure regulator valve, the 204, second pressure regulator valve, 205, linear control valve, 206, linear control valve, 207, linear
Control valve, 208, linear control valve, 209, liquid valve, 210, liquid valve, 211, liquid valve, 212, liquid valve；301, motor,
302, lead screw, 303, nut, 304, emulator piston I, 305, emulator piston II, 306, pedal simulator spring.
Specific implementation mode
The utility model is described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, the utility model specific implementation includes brake pedal, master cylinder 101, lubricating cup 104, pedal mould
Quasi- device 102 and hydraulic regulation unit 103, brake pedal are connect with the piston rod of master cylinder 101, before master cylinder 101 includes
Two chambers of two chamber afterwards, master cylinder 101 are communicated with lubricating cup 104 respectively, and two chambers of master cylinder 101 pass through the first solenoid valve respectively
105 and second solenoid valve 106 after be connected with the output end of pedal simulator 102,101 liang of chambers of master cylinder respectively pass through third electricity
It is connected with hydraulic regulation unit 103 after magnet valve 107 and the 4th solenoid valve 108, hydraulic regulation unit 103 is connected with lubricating cup 104, liquid
The output end that pressure adjusts unit 103 is connected to wheel cylinder.
First solenoid valve 105 and second solenoid valve 106 are normally close valve, when driver has braking intention, the first electromagnetism
Valve 105 and second solenoid valve 106 can be opened.
Third solenoid valve 107 and the 4th solenoid valve 108 are normally open valve, when driver has braking intention, third electromagnetism
Valve 107 and the 4th solenoid valve 108 can close.
As shown in figure 3, pedal simulator 102 include motor 301, outer housing and lead screw 302 in outer housing,
Nut 303, emulator piston I304, emulator piston II305 and pedal simulator spring 306, emulator piston I304 are placed in
Shell internal body portion is two inner cavities by middle part in outer housing, equipped with lead screw 302, nut wherein in the first inner chamber of side
303, emulator piston II305 and pedal simulator spring 306 are housed, and filled with fluid in the second inner chamber of the other side；Motor
301 output shaft is extend into the inner cavity of outer housing and coaxially connected with lead screw 302, and nut 303, spiral shell are set on lead screw 302
Female 303 through connecting rod structures are fixedly connected with emulator piston I304, and emulator piston II305 is provided with central through hole, pedal simulation
Device spring 306 is connected between emulator piston II305 and the inner face of outer housing.Emulator piston I304 and simulator are lived
Plug II305 is tightly connected between outer housing inner wall by sealing ring.
In specific implementation, the second inner chamber of outer housing is step ladder inner hole structure, and inner end diameter is big, and outer diameter is small,
Emulator piston II305 is hierarchic structure, and the big small end of emulator piston II305 is tightly connected and is loaded on the of outer housing respectively
In the inner end and outer end of the step ladder inner hole structure of two inner cavities.
As shown in figure 3, the work of motor 301 drives emulator piston I304 water in an axial direction in outer housing through screw pair
It is flat to move back and forth so that the volume of outer housing second inner chamber changes, and then changes the oil pressure of second inner chamber, through the first electromagnetism
Valve 105 is opened with second solenoid valve 106 and is connected to two intracavitary for being transmitted to master cylinder 101 so that two chambers of master cylinder 101
Oil pressure changes and back and forth changes the feedback force of brake pedal, realizes the simulation for being applied to feel on brake pedal.For example, passing through electricity
301 positive and negative rotation of machine drives the reciprocating motion of emulator piston I304, the final reciprocal change for realizing brake pedal feedback force real
Now trembling for simulation ABS pushes up pedal sense to prompt wheel in driving to have locking risk.
The pressure difference that emulator piston II305 is generated in pedal simulator spring 306 and both ends different cross-sectional simultaneously pushes away
Pressure balance is moved and reached under the action of power in second inner chamber, to realize the pulsation adjustment of fluid pressure variation.
Under conventional operating mode, motor 301 with report brake gear to control the locking of lead screw and nut ancillary equipment, live by simulator
I304 is filled in by nut 303 by connecting rod locking, and emulator piston II305 overcomes spring force under pressure, changes in second
The oil pressure of chamber realizes the simulation completed to being applied to feel on brake pedal after being transmitted to master cylinder 101 and brake pedal.
Under specific operation, when such as brake force deficiency, the work of motor 301 drives emulator piston I304 through screw pair
It being moved horizontally in an axial direction in outer housing so that the volume of outer housing second inner chamber increases, and then reduces the oil pressure of second inner chamber,
Two intracavitary for being transmitted to master cylinder 101 are connected to through the first solenoid valve 105 or second solenoid valve 106 so that master cylinder 101
Two cavity pressures are reduced thus to the feedback shift action that brake pedal load is shunk, and guiding driver steps on brake pedal and carries out tightly deeply
Anxious braking.
As shown in Fig. 2, hydraulic regulation unit 103 includes high pressure accumulator 201, motor supercharging pump module 202, the first pressure regulation
Valve 203, the second pressure regulator valve 204, linear control valve 205,206 and liquid valve 209,210,211,212, high pressure accumulator 201 with
Motor is pressurized pump module 202 and connects, and motor supercharging pump module 202 is connected to lubricating cup 104, and high pressure accumulator 201 is separately connected the
The input terminal connection of one pressure regulator valve 203, the second pressure regulator valve 204, third solenoid valve 107 are connected to the output of the first pressure regulator valve 203
End and the 4th solenoid valve 108 are connected to the output end of the second pressure regulator valve 204；The output end of first pressure regulator valve 203 distinguishes warp
Property control valve 205,206 be connected to two of which wheel cylinder, the output end of the second pressure regulator valve 204 distinguishes linear control valve
207,208 it is connected to other two wheel cylinder, four wheel cylinders are connected through respective liquid valve 209,210,211,212
To lubricating cup 104.
In hydraulic regulation unit 103, pressure source is provided by high pressure accumulator 201, the output of high pressure accumulator 201 is divided into two
Building for road high-pressure brake liquid pushes back road, and two-way, which is built, pushes back the pressure that road is controlled by the first pressure regulator valve 203, the second pressure regulator valve 204 respectively
Power exports and locking；After first pressure regulator valve 203 output first builds and pushes back road, connect respectively through respective linear control valve 205,206
Two wheel cylinders are led to, and establish brake pressure, pass through the braking pressure of wheel cylinder in linear control valve individual control loop
Power；After second pressure regulator valve 204 output second builds and pushes back road, other two are communicated to through respective linear control valve 207,208 respectively
A wheel cylinder, and brake pressure is established, pass through the brake pressure of wheel cylinder in linear control valve individual control loop；High pressure
Accumulator 201 is equipped with pressure sensor, and 201 pressure of high pressure accumulator is detected by pressure monitor sensor in pressure sensor
Pressure be less than threshold value when, from motor be pressurized pump module 202 to high pressure accumulator 201 supplement pressure to threshold value more than；Four
A independent wheel cylinder brake pressure is discharged via respective liquid valve 209, liquid valve 210, liquid valve 211 and liquid valve 212 to oil
Cup 104.
FL, FR, RL, RR in Fig. 1 and Fig. 2 have respectively represented the braked wheel of the near front wheel, off-front wheel, left rear wheel, off hind wheel
Cylinder.
In specific implementation, there are elevated pressures holding, while the first pressure regulation in hydraulic regulation unit and high pressure accumulator always
Valve 203, the second pressure regulator valve 204, linear control valve 205, linear control valve 206, linear control valve 207, linear control valve 208 are equal
Using Linear Control, enabling it is quick and accurate to pressure of wheel braking cylinder progress to control, effectively improve energy recovery efficiency.
In specific implementation, motor 301 is the servo motor with report brake gear, therefore feed screw nut pair lock position is adjustable, needle
To the pedal sense difference of different vehicle, tunable performance is superior, and matching versatility is splendid.
In the implementation of this example, equipped with pedal travel sensor or pedal force sensor to monitor driver on brake pedal
Braking intention, operator brake are intended to be monitored by pedal displacement sensor or pedal force sensor, pass through pedal displacement sensor
Or pedal force sensor can precisely judge that operator brake is intended to.The master cylinder 101 that brake pedal is connected respectively with pedal
Simulator 102 is connected with hydraulic regulation unit 103, and break-make has braking to anticipate by two groups of four solenoid valve controls in driver therebetween
When figure, pedal sense preferably simulation and switching.
The above-mentioned description to embodiment is not limitations of the present invention, any simple on the basis of the utility model
It is monotropic change after structure, belong to scope of protection of the utility model.
Claims (6)
1. a kind of automotive braking energy recovering device with pedal sense feedback, it is characterised in that：Including brake pedal, master cylinder
(101), lubricating cup (104), pedal simulator (102) and hydraulic regulation unit (103), brake pedal and master cylinder (101)
Piston rod connects, and master cylinder (101) includes front and back two chamber, and two chambers of master cylinder (101) are communicated with lubricating cup (104) respectively,
Two chambers of master cylinder (101) are respectively after the first solenoid valve (105) and second solenoid valve (106) and pedal simulator
(102) be connected, (101) two chamber of master cylinder respectively after third solenoid valve (107) and the 4th solenoid valve (108) with hydraulic pressure tune
It saves unit (103) to be connected, hydraulic regulation unit (103) is connected with lubricating cup (104), and the output end of hydraulic regulation unit (103) connects
It is connected to wheel cylinder.
2. a kind of automotive braking energy recovering device with pedal sense feedback according to claim 1, it is characterised in that：Institute
The pedal simulator (102) stated includes motor (301), outer housing and lead screw (302), nut in outer housing
(303), emulator piston I (304), emulator piston II (305) and pedal simulator spring (306), emulator piston I
(304) it is two inner cavities to be placed in the middle part in outer housing by shell internal body portion, and lead screw is housed wherein in the first inner chamber of side
(302), nut (303) are equipped with emulator piston II (305) and pedal simulator spring (306) in the second inner chamber of the other side,
And filled with fluid；The output shaft of motor (301) is extend into outer housing and coaxially connected with lead screw (302), and lead screw covers on (302)
Equipped with nut (303), nut (303) through connecting rod structure is fixedly connected with emulator piston I (304), emulator piston II (305)
It is provided with central through hole, pedal simulator spring (306) is connected to emulator piston II (305) between the inner face of outer housing.
3. a kind of automotive braking energy recovering device with pedal sense feedback according to claim 2, it is characterised in that：Together
When emulator piston II (305) pressure difference thrust and pedal simulator spring (306) for being generated in itself both ends different cross-sectional
Under the action of pressure balance is moved and reached in second inner chamber, to realize fluid pressure variation pulsation adjustment.
4. a kind of automotive braking energy recovering device with pedal sense feedback according to claim 1, it is characterised in that：Institute
The hydraulic regulation unit (103) stated include high pressure accumulator (201), motor supercharging pump module (202), the first pressure regulator valve (203),
Second pressure regulator valve (204), linear control valve (205,206) and liquid valve (209,210,211,212), high pressure accumulator (201)
It is connect with motor supercharging pump module (202), motor supercharging pump module (202) is connected to lubricating cup (104), high pressure accumulator (201)
It is separately connected the input terminal connection of the first pressure regulator valve (203), the second pressure regulator valve (204), third solenoid valve (107) is connected to first
The output end of pressure regulator valve (203) and the 4th solenoid valve (108) are connected to the output end of the second pressure regulator valve (204)；First pressure regulator valve
(203) output end distinguishes linear control valve (205,206) and is connected to two of which wheel cylinder, the second pressure regulator valve (204)
Output end distinguish linear control valve (207,208) and be connected to other two wheel cylinder, four wheel cylinders are through respective
Liquid valve (209,210,211,212) is connected to lubricating cup (104).
5. a kind of automotive braking energy recovering device with pedal sense feedback according to claim 1, it is characterised in that：Institute
The first solenoid valve (105) and second solenoid valve (106) stated are normally close valve, when driver has braking intention, first
Solenoid valve (105) and second solenoid valve (106) can be opened.
6. a kind of automotive braking energy recovering device with pedal sense feedback according to claim 1, it is characterised in that：Institute
The third solenoid valve (107) and the 4th solenoid valve (108) stated are normally open valve, when driver has braking intention, third
Solenoid valve (107) and the 4th solenoid valve (108) can close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820251986.3U CN208006936U (en) | 2018-02-12 | 2018-02-12 | A kind of automotive braking energy recovering device with pedal sense feedback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820251986.3U CN208006936U (en) | 2018-02-12 | 2018-02-12 | A kind of automotive braking energy recovering device with pedal sense feedback |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208006936U true CN208006936U (en) | 2018-10-26 |
Family
ID=63886624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820251986.3U Withdrawn - After Issue CN208006936U (en) | 2018-02-12 | 2018-02-12 | A kind of automotive braking energy recovering device with pedal sense feedback |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208006936U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407788A (en) * | 2018-02-12 | 2018-08-17 | 浙江亚太机电股份有限公司 | Recovering Waste Energy of Braking in Automobiles system with pedal sense feedback |
| CN113479179A (en) * | 2021-07-28 | 2021-10-08 | 中国第一汽车股份有限公司 | Integrated hydraulic braking system and control method thereof |
| WO2023194623A1 (en) * | 2022-04-07 | 2023-10-12 | Asetek Danmark A/S | Driving simulator brake system with controlled pedal feedback |
-
2018
- 2018-02-12 CN CN201820251986.3U patent/CN208006936U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407788A (en) * | 2018-02-12 | 2018-08-17 | 浙江亚太机电股份有限公司 | Recovering Waste Energy of Braking in Automobiles system with pedal sense feedback |
| CN113479179A (en) * | 2021-07-28 | 2021-10-08 | 中国第一汽车股份有限公司 | Integrated hydraulic braking system and control method thereof |
| WO2023194623A1 (en) * | 2022-04-07 | 2023-10-12 | Asetek Danmark A/S | Driving simulator brake system with controlled pedal feedback |
| CN117980198A (en) * | 2022-04-07 | 2024-05-03 | 阿塞泰克丹麦公司 | Driving simulator brake system with controlled pedal feedback |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181026 Effective date of abandoning: 20200317 |