CN107891852A - A kind of pedal simulator - Google Patents
A kind of pedal simulator Download PDFInfo
- Publication number
- CN107891852A CN107891852A CN201711365959.5A CN201711365959A CN107891852A CN 107891852 A CN107891852 A CN 107891852A CN 201711365959 A CN201711365959 A CN 201711365959A CN 107891852 A CN107891852 A CN 107891852A
- Authority
- CN
- China
- Prior art keywords
- control valve
- normally opened
- cylinder body
- mouths
- opened control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
- B60T8/4072—Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for braking
- B60T8/4081—Systems with stroke simulating devices for driver input
-
- 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
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
-
- 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
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
- B60T8/4072—Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for braking
- B60T8/4081—Systems with stroke simulating devices for driver input
- B60T8/409—Systems with stroke simulating devices for driver input characterised by details of the stroke simulating device
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
A kind of pedal simulator disclosed by the invention, including simulator cylinder body, enter oil control valve and normally opened control valve, it is characterized in that, it is described enter oil control valve and normally opened control valve on the end cap of simulator cylinder body, it is described enter oil control valve a mouths, normally opened control valve a mouths connect with master cylinder, it is described enter oil control valve b mouths connected with simulator cylinder body, the normally opened control valve b mouths connect with brake actuator, it is described enter oil control valve a mouths and b mouths between be provided with check valve, hydrostatic sensor is additionally provided with the end cap of the simulator cylinder body, the hydrostatic sensor is in the oil circuit of normally opened control valve and master cylinder, the hydrostatic sensor is connected with ECU.Simulator cylinder body, magnetic valve, hydrostatic sensor are integrated on the end cap of simulator cylinder body by the present invention, are advantageous to product modular assembling, are reduced the risk of pipe interface and leakage, are improved product safety, reliability.
Description
Technical field
The present invention relates to a kind of linear brake system with decoupling function, more particularly to new-energy automobile brake field
The device of interior simulation feel.
Background technology
The problems such as to tackle tail gas pollution, climate warming, various countries increase the research and development of electric automobile.With electric automobile
Popularize, requirement to sure brake system also more and more higher., response speed be present in main flow hydraulic machinery brakes instantly
Slowly, the problems such as Linear Control degree difference, electric vehicle brake is not suitable for it.In order to preferably coordinate electric vehicle engineering to develop, EHB
（Electro-hydraulic brake）Technology is gradually formed, wherein pedal simulator, and pedal sense is provided for driver in EHB, is realized
The decoupling of brakes.
The technical scheme of pedal simulator is typically electromagnetic valve device and pedal simulator cylinder body in existing EHB brakes
Separate, be attached by oil pipe.The complexity and installation difficulty of hydraulic circuit are so added, multi-pipeline connector, is existed
The potential safety hazard of brake fluid leakage.
The content of the invention
The technical problems to be solved by the invention are overcome the deficiencies in the prior art, there is provided a kind of suitable for electric automobile
Pedal simulator, simulator cylinder body, magnetic valve, hydrostatic sensor are integrated, magnetic valve oil outlet and simulator cylinder body
Fuel feed hole shares, and is advantageous to the modularization of product, improves product oil circuit sealing security, reduces hydraulic circuit tie point, reduce
Pipeline complexity, save installation cost and installing space.
In order to solve above-mentioned purpose, the technical solution adopted by the present invention is：
A kind of pedal simulator, including simulator cylinder body, enter oil control valve and normally opened control valve, it is characterised in that it is described enter
Oil control valve and normally opened control valve on the end cap of simulator cylinder body, it is described enter oil control valve a mouths, normally opened control valve a mouths
Connected with master cylinder, it is described enter oil control valve b mouths connected with simulator cylinder body, the normally opened control valve b mouths are held with braking
Row device connect, it is described enter oil control valve a mouths and b mouths between be provided with check valve.
Be additionally provided with hydrostatic sensor on the end cap of the simulator cylinder body, the hydrostatic sensor located at normally opened control valve with
In the oil circuit of master cylinder, the hydrostatic sensor is connected with ECU.
The check valve is located at on the valve seat of oil control valve.
The master cylinder is provided with a brake chamber, and the normally opened control valve is corresponding to be provided with one group.
The master cylinder is provided with two brake chambers, respectively the first brake chamber and the second brake chamber, described normal
Open that control valve is corresponding to be provided with two groups, respectively normally opened control valve A and normally opened control valve B, the normally opened control valve A and normally opened control
Valve B processed a mouths are connected with the first brake chamber and the second brake chamber respectively.
The brake actuator includes motor, transmission mechanism and performs cylinder body, and the execution cylinder body passes through normally opened control
Valve processed is connected with master cylinder, and the motor drives transmission mechanism to be pressurizeed to performing cylinder body, the execution cylinder body
Oil-out is connected by ESP/ABS with wheel wheel cylinder.
The beneficial effects of the invention are as follows：Simulator cylinder body, magnetic valve, hydrostatic sensor are integrated into simulator cylinder by the present invention
On the end cap of body, be advantageous to product modular assembling, reduce the risk of pipe interface and leakage, improve product safety, reliability；
Because the present invention can decouple to brakes, energy regenerating regenerative braking mode can be applied.Existing standard ESP, ABS product need not
Upgrading, you can suitable for electric automobile, reduce difficulty of matching, and then saved construction cycle and the cost of vehicle.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the oil circuit schematic diagram of pedal simulator embodiment one of the present invention；
Fig. 3 is the oil circuit schematic diagram of pedal simulator embodiment two of the present invention；
Fig. 4 is to enter oil control valve and one-way valve structures schematic diagram in the present invention.
Embodiment
As depicted in figs. 1 and 2, a kind of pedal simulator, including simulator cylinder body 1, enter oil control valve 2 and normally opened control
Valve 3, it is described enter oil control valve 2 and normally opened control valve 3 on the end cap 4 of simulator cylinder body, in the present embodiment, the mould
Intend being additionally provided with hydrostatic sensor 5 on the end cap 4 of device cylinder body, it is described enter oil control valve 2, normally opened control valve 3 and hydrostatic sensor 5 it is logical
Riveting is crossed to be integrated on the end cap 4 of simulator cylinder body.
It is described enter a mouths of oil control valve 2, a mouths of normally opened control valve 3 connected with master cylinder 6.
Embodiment one：The master cylinder 6 is provided with two brake chambers, respectively the first brake chamber 601 and the second system
Dynamic chamber 602, the normally opened control valve 3 is corresponding to be provided with two groups, respectively normally opened control valve A 31 and normally opened control valve B 32,
The normally opened control valve A 31 and normally opened control valve B 32 a mouths respectively with the first brake chamber 601 and the second brake chamber 602
Connection.
It is described enter oil control valve 2 b mouths connected with simulator cylinder body 1, it is described enter oil control valve 2 a mouths and b mouths between set
There is check valve 8, in the present embodiment, as shown in figure 4, the check valve 8 is located at on the valve seat 21 of oil control valve 2, the list
Include funnel-shaped pipe 81 and steel ball 82 to valve 8, the funnel-shaped pipe is respectively from top to bottom heavy caliber portion, funnel rake
With small-bore portion, the steel ball is located at funnel rake, and the steel ball size is more than the diameter in small-bore portion, can only so allowed
Brake fluid outflow in simulator cylinder body, it must be controlled in oil-feed that not reversible inflow, i.e. brake fluid, which flow into simulator cylinder body,
In the case that valve is opened.
The b mouths of the normally opened control valve 3 connect with brake actuator 7, the brake actuator 7 include motor 701,
Transmission mechanism 702 and execution cylinder body 703, the execution cylinder body 703 are connected by normally opened control valve 3 with master cylinder 6, the drive
Dynamic motor 701 drives transmission mechanism 702 to be pressurizeed to performing cylinder body 703, and the oil-out for performing cylinder body 703 passes through ESP/
ABS is connected with wheel wheel cylinder, and the wheel wheel cylinder includes braked wheel before wheel cylinder 902, the right side behind left front wheel cylinder 901, the right side
Cylinder 903, left back wheel cylinder 904.
The master cylinder 6 and brake actuator 7 are directly connected to brake fluid oil pot 10, and brake fluid oil pot can be system
Dynamic master cylinder and brake actuator directly provide brake fluid.
The hydrostatic sensor 5 is in oil circuit of the normally opened control valve 3 with master cylinder 6, because normally opened control valve 2 is provided with
Two groups, thus hydrostatic sensor 5 also answer it is corresponding be provided with two groups, the hydrostatic sensor 5 is connected with ECU 11, and the hydraulic pressure passes
Sensor measures the hydraulic pressure size of pipeline, and signal is passed into ECU, and ECU controls the on off operating mode and brake actuator of magnetic valve
Operation.
Operation principle：As shown in Figure 2：During normal brake application, when driver's brake pedal 12, stroke sensor 13 is visited
Operator brake is measured to be intended to and feed back to ECU 11.Master cylinder 6 acts, the first brake chamber 601 and the second brake chamber
Brake fluid in 602 flows separately through normally open solenoid valve A 31 and normally open solenoid valve B 32.Normally open solenoid valve A 31 and normally opened electromagnetism
Valve B 32 is powered, and is closed, and master cylinder 6 and the oil circuit performed between cylinder body 703 are cut off.It is logical to enter oil control valve 2
Electricity, in the conduction state, brake fluid is flowed into simulator cylinder body 1 from master cylinder 6.As driver's pedal force improves, simulation
Elastic parts works in device cylinder body, there is provided a reaction force, provides pedal sense for driver, brakes is solved
Coupling.At the same time, brake actuator 7 drives transmission mechanism 702 right according to ECU instruction using the motor 701 of actuator
Perform cylinder body 703 to be pressurizeed, produce actual braking force and wheel wheel cylinder is distributed to by ESP/ABS.
Under the abnormality of batteries of electric automobile dead electricity, Full Vehicle System can not be powered, driver enters to electric automobile
Row brake hard, now, enter the dead electricity of oil control valve 2, be off state, brake fluid can not be flowed into simulator cylinder body 1, pedal
Simulator is failure to actuate.Normally open solenoid valve A 31 and the dead electricity of normally open solenoid valve B 32, in the conduction state, the system in master cylinder 6
Hydrodynamic is flowed into wheel wheel cylinder by performing cylinder body 703, produces braking moment, and now motor does not work.
Embodiment two：As shown in figure 3, when master cylinder uses single cylinder, a normally open solenoid valve and a liquid can be reduced
Pressure sensor, that is to say, that the master cylinder 6 is provided with a brake chamber, and the normally opened control valve 3 is corresponding to be provided with one
Group, the hydrostatic sensor 5 is corresponding also only with setting one group, and remaining is constant.
Operation principle：During normal brake application, when driver's brake pedal, stroke sensor detects operator brake
It is intended to and feeds back to ECU.Master cylinder acts, and brake fluid flows into normally open solenoid valve.Normally open solenoid valve is powered, in closing shape
State, master cylinder and the oil circuit performed between cylinder body are cut off.Enter oil control valve energization, in the conduction state, brake fluid is from system
Dynamic master cylinder is flowed into simulator cylinder body.As driver's pedal force improves, elastic parts works in simulator cylinder body, there is provided one
Individual reaction force, pedal sense is provided for driver, brakes is decoupled.At the same time, brake actuator is according to ECU's
Instruction, drive transmission mechanism to be pressurizeed to performing cylinder body using the motor of actuator, produce actual braking force and pass through
ESP/ABS7 distributes to wheel wheel cylinder.
Under the abnormality of batteries of electric automobile dead electricity, Full Vehicle System can not be powered, driver enters to electric automobile
Row brake hard, now, enter oil control valve dead electricity, be off state, brake fluid can not be flowed into simulator cylinder body, pedal mould
Intend device to be failure to actuate.Normally open solenoid valve dead electricity, in the conduction state, the brake fluid in master cylinder is direct by braking execution cylinder body
Flow into wheel wheel cylinder, produce braking moment, now motor does not work.
Claims (6)
1. a kind of pedal simulator, including simulator cylinder body, enter oil control valve and normally opened control valve, it is characterised in that described
Enter oil control valve and normally opened control valve located at simulator cylinder body end cap on, it is described enter oil control valve a mouths, normally opened control valve a
Mouthful connect with master cylinder, it is described enter oil control valve b mouths connected with simulator cylinder body, the normally opened control valve b mouths and brake
Actuator connect, it is described enter oil control valve a mouths and b mouths between be provided with check valve.
2. a kind of pedal simulator according to claim 1, it is characterised in that on the end cap of the simulator cylinder body also
Provided with hydrostatic sensor, the hydrostatic sensor is in the oil circuit of normally opened control valve and master cylinder, the hydrostatic sensor
It is connected with ECU.
3. a kind of pedal simulator according to claim 1, it is characterised in that the check valve is located at into oil control valve
Valve seat on.
4. a kind of pedal simulator according to claim 1, it is characterised in that the master cylinder is provided with a braking
Chamber, the normally opened control valve is corresponding to be provided with one group.
5. a kind of pedal simulator according to claim 1, it is characterised in that the master cylinder is provided with two brakings
Chamber, respectively the first brake chamber and the second brake chamber, the normally opened control valve is corresponding to be provided with two groups, respectively normally opened
Control valve A and normally opened control valve B, the normally opened control valve A and normally opened control valve B a mouths respectively with the first brake chamber and
Two brake chambers connect.
6. a kind of pedal simulator according to claim 1, it is characterised in that the brake actuator includes driving electricity
Machine, transmission mechanism and execution cylinder body, the execution cylinder body are connected by normally opened control valve with master cylinder, the motor band
Dynamic transmission mechanism is pressurizeed to performing cylinder body, and the oil-out for performing cylinder body is connected by ESP/ABS with wheel wheel cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711365959.5A CN107891852A (en) | 2017-12-18 | 2017-12-18 | A kind of pedal simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711365959.5A CN107891852A (en) | 2017-12-18 | 2017-12-18 | A kind of pedal simulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107891852A true CN107891852A (en) | 2018-04-10 |
Family
ID=61807657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711365959.5A Pending CN107891852A (en) | 2017-12-18 | 2017-12-18 | A kind of pedal simulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107891852A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112319443A (en) * | 2020-10-29 | 2021-02-05 | 上海拿森汽车电子有限公司 | Brake pedal simulator |
| CN112744206A (en) * | 2019-10-30 | 2021-05-04 | 比亚迪股份有限公司 | Oil way block of vehicle braking system and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020000752A1 (en) * | 2000-04-27 | 2002-01-03 | Akihito Kusano | Brake control device for a vehicle |
| US20050151418A1 (en) * | 2001-12-05 | 2005-07-14 | Daimlerchrysler Ag | Electrohydraulic braking system with a pedal travel simulator consisting of a spring loaded pressure cylinder and a mechanically coupled servo piston |
| JP2008222029A (en) * | 2007-03-13 | 2008-09-25 | Honda Motor Co Ltd | Brake device |
| CN101879891A (en) * | 2010-06-29 | 2010-11-10 | 浙江亚太机电股份有限公司 | Simulator for feeling automobile brake pedal |
| CN102294997A (en) * | 2011-06-15 | 2011-12-28 | 浙江亚太机电股份有限公司 | Sensation simulator of automobile brake pedal |
| CN103264639A (en) * | 2013-06-14 | 2013-08-28 | 陈晶杰 | Mechanical-electric-hydraulic compound braking system and corresponding vehicle |
| CN103359096A (en) * | 2013-08-07 | 2013-10-23 | 吉林大学 | Hydraulic braking control device applicable to braking energy recovery |
| CN103950443A (en) * | 2014-04-14 | 2014-07-30 | 同济大学 | Pedal feeding active control type electronic hydraulic braking system |
| CN106740778A (en) * | 2016-11-25 | 2017-05-31 | 浙江亚太机电股份有限公司 | A kind of integrated form master cylinder |
| CN107200001A (en) * | 2017-06-05 | 2017-09-26 | 重庆大学 | HEV/EV regenerative braking control pressurer systems based on front and back wheel bi-motor |
| CN207579850U (en) * | 2017-12-18 | 2018-07-06 | 浙江力邦合信智能制动系统股份有限公司 | A kind of pedal simulator |
-
2017
- 2017-12-18 CN CN201711365959.5A patent/CN107891852A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020000752A1 (en) * | 2000-04-27 | 2002-01-03 | Akihito Kusano | Brake control device for a vehicle |
| US20050151418A1 (en) * | 2001-12-05 | 2005-07-14 | Daimlerchrysler Ag | Electrohydraulic braking system with a pedal travel simulator consisting of a spring loaded pressure cylinder and a mechanically coupled servo piston |
| JP2008222029A (en) * | 2007-03-13 | 2008-09-25 | Honda Motor Co Ltd | Brake device |
| CN101879891A (en) * | 2010-06-29 | 2010-11-10 | 浙江亚太机电股份有限公司 | Simulator for feeling automobile brake pedal |
| CN102294997A (en) * | 2011-06-15 | 2011-12-28 | 浙江亚太机电股份有限公司 | Sensation simulator of automobile brake pedal |
| CN103264639A (en) * | 2013-06-14 | 2013-08-28 | 陈晶杰 | Mechanical-electric-hydraulic compound braking system and corresponding vehicle |
| CN103359096A (en) * | 2013-08-07 | 2013-10-23 | 吉林大学 | Hydraulic braking control device applicable to braking energy recovery |
| CN103950443A (en) * | 2014-04-14 | 2014-07-30 | 同济大学 | Pedal feeding active control type electronic hydraulic braking system |
| CN106740778A (en) * | 2016-11-25 | 2017-05-31 | 浙江亚太机电股份有限公司 | A kind of integrated form master cylinder |
| CN107200001A (en) * | 2017-06-05 | 2017-09-26 | 重庆大学 | HEV/EV regenerative braking control pressurer systems based on front and back wheel bi-motor |
| CN207579850U (en) * | 2017-12-18 | 2018-07-06 | 浙江力邦合信智能制动系统股份有限公司 | A kind of pedal simulator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112744206A (en) * | 2019-10-30 | 2021-05-04 | 比亚迪股份有限公司 | Oil way block of vehicle braking system and vehicle |
| CN112744206B (en) * | 2019-10-30 | 2022-03-18 | 比亚迪股份有限公司 | Oil way block of vehicle braking system and vehicle |
| CN112319443A (en) * | 2020-10-29 | 2021-02-05 | 上海拿森汽车电子有限公司 | Brake pedal simulator |
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