CN207875613U - A kind of active pedal simulator of brake-by-wire - Google Patents
A kind of active pedal simulator of brake-by-wire Download PDFInfo
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- CN207875613U CN207875613U CN201820087013.0U CN201820087013U CN207875613U CN 207875613 U CN207875613 U CN 207875613U CN 201820087013 U CN201820087013 U CN 201820087013U CN 207875613 U CN207875613 U CN 207875613U
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Abstract
The utility model is related to field of automobile, more particularly, to a kind of active pedal simulator of brake-by-wire.A kind of active pedal simulator of brake-by-wire, including pedal gear, master cylinder, active mode simulator and motor electronic control unit, first piston and the first spring are provided in master cylinder, pedal gear is connect by push rod with first piston, active mode simulator includes simulator master cylinder, second piston, leading screw, motor, driving wheel and driven wheel, the output shaft of motor is connect with driving wheel, feed screw nut is provided on leading screw, master cylinder track is provided in simulator master cylinder, it is provided with ball grooves on feed screw nut both sides outer wall corresponding with master cylinder track, ball is provided in ball grooves, it is set with second spring simulator master cylinder on leading screw it is located on the wall of second piston side and is provided with oil inlet and outlet.The utility model is simple in structure, difficulty of processing is low, and braking feel is smooth, comfort is high.
Description
Technical field
The utility model is related to field of automobile, are simulated more particularly, to a kind of active pedal of brake-by-wire
Device.
Background technology
Braking system is the important leverage of ride safety of automobile, current overwhelming majority automobile application vacuum servo form
Braking system, vacuum servo source generate negative pressure by engine or electric vacuum pump and carry out vacuum servo.With automobile active safety
The development of technology and hybrid power and pure electric automobile increasingly rise, and Conventional braking systems have been unable to meet new auto technology and answer
With such as AEB（Automatic emergency brake system）, regenerating braking energy recycling etc. functional requirements, brake-by-wire technology compare traditional braking
System has many advantages, such as simple in structure, braking response is fast, control accuracy is high, flexible arrangement, consistent pedal characteristic, easily
It is integrated in automobile kinetic-control system, and the regeneration brake system need of electric vehicle and hybrid vehicle can be met
It asks, there is good development prospect.But electric controlled brake system eliminates being directly connected to for brake pedal and wheel cylinder, it is necessary to
Using specific device come simulating brake pedal sense, during braking, brake pedal travel simulator is to driver one
Pedal reaction force, making driver, there are one good brake pedal feels, and driver is real-time according to pedal reaction force
The stroke for adjusting brake pedal ensures the safety of braking.
As Chinese patent publication No. is：103171531 A of CN, in the active brake pedal that on June 26th, 2013 announces
Stroke simulator and its control method, including band tooth interior circulation nut, lead screw mandril, driving gear, motor, second piston,
First piston, simulator cylinder body, partition board, limit switch and rear cover.Rear cover is mounted on the left and right sides of partition board, band with simulator cylinder body
Tooth interior circulation nut is mounted on rear cover on partition board using two thrust bearings, and spiral shell is recycled in the left end loading band tooth of lead screw mandril
To roll connection in female hole, the right end of lead screw mandril is inserted into the second piston in simulator cylinder body, the right side of second piston
First piston is installed, motor is mounted on the lower section of simulator cylinder body, and motor is to be fixedly connected with driving gear, motor control
Device processed is mounted on motor, and limit switch covers after being mounted on, and limit switch is that line is connect with electric machine controller.The device is adopted
It is designed with multisection type spring, simulator housing structure is complicated, technique difficulty of processing is big, and with the increase of segments, precision
Control it is further difficult, using multisection type spring design, can only a certain pedal force of approximate simulation-pedal travel curvilinear style,
Or be designed to adjustable, but it is complicated for operation, difficulty is big, and professional technician is needed to handle, everyday driver cannot facilitate
Quickly switch the braking feel oneself liked.It is used as the type simulator side of designing and developing simultaneously, is unfavorable for quickly coping with host
The braking feel of factory's different style develops demand.
Utility model content
The utility model provides that a kind of spring type is few, simple in structure, difficulty of processing is low primarily directed to the above problem,
The braking active pedal simulator of brake-by-wire that feel is smooth, comfort is high.
The purpose of this utility model is mainly to be achieved by following proposal：A kind of active pedal mould of brake-by-wire
Quasi- device, including pedal gear, master cylinder, active mode simulator and motor electronic control unit, the pedal gear power on
It is connected with pedal angle sensor, the pedal angle sensor is electrically connected with motor electronic control unit, the braking
First piston and the first spring are disposed in master cylinder from left to right, one end of first spring is against first piston
On right side, the other end of first spring is against on master cylinder inner wall, and the pedal gear passes through push rod and
The left side of one piston connects, the active mode simulator includes simulator master cylinder, be arranged in simulator master cylinder second
Piston, the leading screw being arranged in simulator master cylinder, the motor being arranged on simulator master cylinder side wall, driving wheel and with driving wheel phase
The driven wheel of cooperation, the motor are electrically connected with motor electronic control unit, the output shaft of the motor and driving wheel
It connects at center, is connected by two-direction thrust bearing between the leading screw and driven wheel, is provided on the leading screw and silk
Thick stick matched feed screw nut is provided with master cylinder track in the simulator master cylinder on the inner wall of both sides corresponding with leading screw,
Ball grooves are provided on feed screw nut both sides outer wall corresponding with master cylinder track, rolling is provided in the ball grooves
The side of pearl, the ball is against on the side wall of ball grooves, and the other side of the ball is against on master cylinder orbit sidewall, institute
Second spring is set on the leading screw stated, one end of the second spring is against on feed screw nut, the second spring
The other end is against in second piston, and the simulator master cylinder, which is located on the wall of second piston side, is provided with oil inlet and outlet, institute
The master cylinder stated, which is located on the wall of the first spring side, to be connect by oil circuit with oil inlet and outlet.It is electrically connected with and steps on pedal gear
Plate angular transducer, pedal angle sensor are electrically connected with motor electronic control unit, and pedal angle sensor can supervise in real time
Signal is simultaneously passed to motor electronic control unit by the state for surveying pedal gear, is disposed with the in master cylinder from left to right
One piston and the first spring, one end of the first spring are against on the right side of first piston, and the other end of the first spring is against system
On dynamic master cylinder inner wall, pedal gear is connected by the left side of push rod and first piston, when not braked, first piston and
First spring is in initial position, and when being braked, push rod is driven to move for pedal gear so that first piston is led in braking
Toward the movement of the first spring direction of compression in cylinder, active mode simulator includes simulator master cylinder, be arranged in simulator master cylinder the
Two pistons, the leading screw being arranged in simulator master cylinder, the motor being arranged on simulator master cylinder side wall, driving wheel and and driving wheel
Matched driven wheel, motor are electrically connected with motor electronic control unit, and motor electronic control unit receives to come from pedal angle
The signal of sensor simultaneously controls motor after being converted, and is connected at the output shaft of motor and the center of driving wheel, motor
Output shaft rotation can drive driving wheel stable rotation, connected by two-direction thrust bearing between leading screw and driven wheel, driving wheel
Rotation drives and is rotated simultaneously with the matched driven wheel of driving wheel, and driven wheel rotation can drive leading screw to turn by two-direction thrust bearing
Dynamic, the axial load that leading screw is born when rotating is carried by two-direction thrust bearing, and reduces its rotary friction by two-direction thrust bearing
Wipe power, be provided on leading screw with the matched feed screw nut of leading screw, in simulator master cylinder on the inner wall of both sides corresponding with leading screw
It is provided with master cylinder track, ball grooves are provided on feed screw nut both sides outer wall corresponding with master cylinder track, are arranged in ball grooves
There are ball, the side of ball to be against on the side wall of ball grooves, the other side of ball is against on master cylinder orbit sidewall, feed screw nut spiral shell
Line is connected on leading screw, and when leading screw is rotated with driven wheel, feed screw nut is since by ball, it limits rotary freedom, leading screw
Nut can only be moved along leading screw axial direction, and ball is driven to be moved in master cylinder track, and ball plays supporting role, leading screw
On be set with second spring, one end of second spring is against on feed screw nut, and the other end of second spring is against in second piston,
Simulator master cylinder, which is located on the wall of second piston side, is provided with oil inlet and outlet, and master cylinder is located on the wall of the first spring side
It is connect with oil inlet and outlet by oil circuit, when conventional brake, pedal gear drives push rod that first piston is pushed to be moved in master cylinder
It is dynamic, braking fluid is entered from oil inlet and outlet in simulator master cylinder by oil circuit while first piston compresses the first spring,
Braking fluid pushes second piston to be moved toward compression second spring direction, and pedal sense is only generated by the first spring at this time, motor
Electronic control unit receives the signal of pedal angle sensor passes and controls motor rotation, and motor is driven driven by driving wheel
Wheel turns over certain angle, while driven wheel drives the leading screw being attached thereto to rotate identical angle, and feed screw nut is along lead screw shaft
It is moved to direction, exports second spring preload amount displacement, pedal sense is generated by the first spring with second spring jointly at this time.
Preferably, the pedal gear includes fixing bracket, pedal and pedal arm, the pedal is fixed on pedal
Arm lower end, the pedal arm upper end are rotatablely connected with fixing bracket, and the push rod is hinged with pedal arm.Pedal gear includes
Fixing bracket, pedal and pedal arm, pedal are fixed on pedal arm lower end, and pedal arm upper end, which is rotated with fixing bracket by axis pin, to be connected
It connects, push rod is hinged with pedal arm, and when driver steps on pedal, pedal rotates with pedal arm and push rod is driven to move simultaneously.
There is alternate brake to return by oil circuit connection preferably, the master cylinder is located on the wall of the first spring side
Road.Master cylinder is located on the wall of the first spring side has alternate brake circuit by oil circuit connection, when active mode simulator is sent out
When raw failure, the power-off of active mode simulator is stopped, and provides vehicle braking force by alternate brake circuit at this time.
It is opened preferably, being provided with closed type simulator on oil circuit between the active mode simulator and master cylinder
Solenoid valve is closed, being provided with open type master cylinder on the oil circuit between the alternate brake circuit and master cylinder is isolated electromagnetism
Valve.Closed type simulator opening and closing solenoid valve is provided on oil circuit between active mode simulator and master cylinder, alternate brake returns
It is provided with open type master cylinder isolation solenoid valve on oil circuit between road and master cylinder, when conventional brake, closed type simulation
Device opening and closing solenoid valves are in the open state, and the energization of open type master cylinder isolation solenoid valve is closed, spare system
Dynamic circuit does not work；When active mode simulator breaks down, closed type simulator is opened and closed solenoid valve power-off and closes, active
Simulator is stopped, and the power-off of open type master cylinder isolation solenoid valve is opened, and vehicle braking force is provided by alternate brake circuit.
Preferably, being provided with the first piston sealing ring being close to master cylinder inner wall, institute on the first piston
The second piston sealing ring being close to simulator master cylinder inner wall is provided in the second piston stated.It is provided with and makes on first piston
The first piston sealing ring that master cylinder inner wall is close to is moved, the second piston being close to simulator master cylinder inner wall is provided in second piston
Sealing ring so that braking fluid not easily passs through piston and the gap location of inboard wall of cylinder block leaks, and increases the service life of equipment, together
When also improve equipment use when safety.
A kind of control method of the active pedal simulator of above-mentioned brake-by-wire, carries out according to the following steps：
1）, one share 3 kinds of working conditions：
（1）Idle state；
（2）Conventional brake state；
（3）Alternate brake state；
2）, motor electronic control unit judge which kind of work is system be in by judging pedal angle sensor live signal
Make state；
3）, according to working condition determine motor action：
a）If, be in idle condition, i.e., when not braked, first piston and second piston are in initial position, electricity
Machine is motionless；
b）If, be in conventional brake state, motor electronic control unit according to the signal of pedal angle sensor passes come
Control motor rotation；
c）If, be in alternate brake state, i.e., when the active pedal simulator of brake-by-wire breaks down, closed type simulation
Device is opened and closed solenoid valve power-off and closes, and active mode simulator is stopped, and the power-off of open type master cylinder isolation solenoid valve is opened, by
Alternate brake circuit provides vehicle braking force.
Therefore, a kind of active pedal simulator of brake-by-wire of the utility model has following advantages：1. practicality is new
Spring type is few in type, simple in structure, difficulty of processing is low, and the parts used are less, reduces cost when plant produced；
2. the active mode simulator designed in the utility model can carry out spring pre-tightening amount by motor and transmission mechanism
It adjusting in real time, solves pedal force-stroke piecewise linearity in prior art, braking feel has some setbacks sliding, comfort difference problem,
It can realize that different brake pedal force feedbacks is special by same pedal simulator by way of changing Software for Design simultaneously
Property solves the problems, such as that prior art pedal force-stroke curve is single, difficult adjustment；
3. the utility model is applied to line control brake system, it can be achieved that high precision nonlinear pedal simulator pedal force-is stepped on
Plate stroke curve exports, and ensures that pedal feel is comfortably controllable, gives driver's confidence.
4. the utility model is applied to line control brake system, can be according to different drive demands, the side being arranged by software
Formula conveniently and efficiently switches different braking styles.
Description of the drawings
Attached drawing 1 is a kind of structural schematic diagram of the utility model.
Attached drawing 2 is the enlarged cross-sectional view of active mode simulator in the utility model.
Attached drawing 3 is active mode simulator control principle drawing in the utility model.
Attached drawing 4 is the exportable pedal force of active mode simulator-stroke curve figure in the utility model.
It illustrates：1- fixing brackets, 2- pedal arms, 3- pedals, 4- pedal angle sensors, 5- push rods, 6- first live
Plug, 7- first piston sealing rings, the first springs of 8-, 9- master cylinders, 10- open type master cylinder isolation solenoid valves, 11- are spare
Brake circuit, 12- closed type simulators are opened and closed solenoid valve, 13- motor electronic control units, 14- active mode simulators, 15- moulds
Quasi- device master cylinder, 16- second springs, 17- master cylinder tracks, 18- balls, 19- ball grooves, 20- two-direction thrust bearings, 21- driven wheels,
22- oil inlet and outlets, 23- second pistons, 24- second piston sealing rings, 25- leading screws, 26- motors, 27- feed screw nuts, 28- drivings
Wheel, A1- two-part spring simulators pedal force-stroke curve, the exportable pedal force of C1- the utility model simulators-stroke are bent
Line example 1, the exportable pedal force of C2- the utility model simulators-stroke curve example 2, C3- the utility model simulators are exportable to be stepped on
Plate power-stroke curve example 3.
Specific implementation mode
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment 1：
As shown in Figure 1, 2, the active pedal simulator of a kind of brake-by-wire, including pedal gear, master cylinder 9, active
Mode simulator 14 and motor electronic control unit 13 are electrically connected with pedal angle sensor 4, pedal angle sensing on pedal gear
Device is electrically connected with motor electronic control unit, and pedal angle sensor can monitor the state of pedal gear in real time and signal is passed
Motor electronic control unit is passed, is disposed with first piston 6 and the first spring 8, the first bullet in master cylinder from left to right
One end of spring is against on the right side of first piston, and the other end of the first spring is against on master cylinder inner wall, pedal gear packet
Fixing bracket 1, pedal 3 and pedal arm 2 are included, pedal is fixed on pedal arm lower end, and pedal arm upper end passes through axis pin with fixing bracket
Rotation connection, pedal gear are connect by push rod 5 with the left side of first piston, and push rod is hinged with pedal arm, when driver steps on
When lower pedal, pedal rotates with pedal arm and push rod is driven to move simultaneously, when not braked, first piston and the first spring
It is in initial position, when being braked, push rod is driven to move for pedal gear so that first piston past pressure in master cylinder
It contracts the movement of the first spring direction, active mode simulator includes simulator master cylinder 15, the second piston that is arranged in simulator master cylinder
23, be arranged the leading screw 25 in simulator master cylinder, the motor 26 being arranged on simulator master cylinder side wall, driving wheel 28 and with driving
Matched driven wheel 21 is taken turns, motor is electrically connected with motor electronic control unit, and motor electronic control unit receives to come from pedal
The signal of angular transducer simultaneously controls motor after being converted, and is connected at the output shaft of motor and the center of driving wheel,
The output shaft rotation of motor can drive driving wheel stable rotation, be connected by two-direction thrust bearing 20 between leading screw and driven wheel,
Driving wheel rotation drives to be rotated simultaneously with the matched driven wheel of driving wheel, and driven wheel rotation can be driven by two-direction thrust bearing
Leading screw rotates, and the axial load that leading screw is born when rotating is carried by two-direction thrust bearing, and reduces it by two-direction thrust bearing
Rotating friction force, is provided on leading screw and the matched feed screw nut 27 of leading screw, corresponding with leading screw two in simulator master cylinder
It is provided with master cylinder track 17 on the inner wall of side, ball grooves 19 are provided on feed screw nut both sides outer wall corresponding with master cylinder track,
Ball 18 is provided in ball grooves, the side of ball is against on the side wall of ball grooves, and the other side of ball is against master cylinder rail side
On wall, feed screw nut is threaded on leading screw, and when leading screw is rotated with driven wheel, feed screw nut is due to by its limitation of ball
Rotary freedom, feed screw nut can only be moved along leading screw axial direction, and ball is driven to be moved in master cylinder track, and ball plays
Supporting role is set with second spring 16 on leading screw, and one end of second spring is against on feed screw nut, second spring it is another
End is against in second piston, and simulator master cylinder, which is located on the wall of second piston side, is provided with oil inlet and outlet 22, master cylinder position
In being connect with oil inlet and outlet by oil circuit on the wall of the first spring side, it is provided on first piston and is close to master cylinder inner wall
First piston sealing ring 7, be provided with the second piston sealing ring 24 being close to simulator master cylinder inner wall in second piston so that
Braking fluid not easily passs through piston and the gap location of inboard wall of cylinder block leaks, and increases the service life of equipment, also improves simultaneously
Safety when equipment uses, when conventional brake, pedal gear drives push rod that first piston is pushed to be moved in master cylinder, the
Braking fluid is entered from oil inlet and outlet in simulator master cylinder by oil circuit while one piston compresses the first spring, brake oil
Liquid pushes second piston toward the movement of compression second spring direction, and pedal sense is only by the generation of the first spring, motor electronic control at this time
Unit processed receives the signal of pedal angle sensor passes and controls motor rotation, and motor drives driven wheel to turn over by driving wheel
Certain angle, while driven wheel drives the leading screw being attached thereto to rotate identical angle, feed screw nut is along leading screw axial direction
It is mobile, second spring preload amount displacement is exported, pedal sense is generated by the first spring with second spring jointly at this time；Master cylinder
There is alternate brake circuit 11 by oil circuit connection on the wall of the first spring side, between active mode simulator and master cylinder
Oil circuit on be provided with closed type simulator opening and closing solenoid valve 12, be arranged on the oil circuit between alternate brake circuit and master cylinder
There is an open type master cylinder isolation solenoid valve 10, when conventional brake, closed type simulator opening and closing solenoid valves are in open shape
State, the energization of open type master cylinder isolation solenoid valve are closed, and alternate brake circuit does not work；When active simulation
When device breaks down, closed type simulator is opened and closed solenoid valve power-off and closes, and active mode simulator is stopped, open type braking master
The power-off of cylinder isolation solenoid valve is opened, and vehicle braking force is provided by alternate brake circuit.
Active mode simulator control principle drawing in the utility model is as shown in figure 3, the utility model can pass through motor electricity
Non-linear pedal force-stroke curve is flexibly arranged in sub-control unit software and hardware, need to only deposit target pedal force-stroke curve data
It is stored in electronic control unit software strategy, is stepped on using active mode simulator output different-style in same set of the utility model
Plate power-stroke curve, in conventional brake, motor electronic control unit obtains working as former riding by pedal angle sensor live signal
Plate stroke, and present day analog device bullet is conversed according to the pedal angle being stored in electronic control unit-pedal force relationship by objective (RBO)
Spring target preload amount by being compared with the current spring pre-tightening magnitude of simulator, and considers system idle stroke, other springs
Power, frictional force and Current Temperatures compensate and correct, and export final simulator spring target preload amount, motor electronic control unit
Motor corner conversion is carried out, target rotation angle is rapidly and accurately exported by motor, and pass through motor decelerating mechanism, feed screw nut
Pair forms practical spring pre-tightening amount, and completion follows target pedal force-stroke curve.
The utility model active mode simulator can theoretically realize that pedal force-stroke arbitrary function closes in a certain range
The curve of system exports, as shown in figure 4, parallelogram right boundary is respectively the active pedal simulator spring of the utility model
Pedal force-stroke curve when minimum and maximum preload amount, and the upper border line of parallelogram is maximum pedal travel limit value.
According to the requirement of target pedal force-stroke curve, pedal force-stroke that requirement can be exported in parallelogram region is bent
Line.In Fig. 4, A1 is two-part spring pedal simulator pedal force-stroke curve, and the active pedal simulator of the utility model can
Adjust spring pre-tightening amount in real time according to pedal travel by motor, can export with target pedal-stroke curve very close to sheet
The exportable pedal force of utility model simulator-stroke curve example 1C1；Meanwhile in parallelogram region, it can also export all
Such as the exportable pedal force of the utility model simulator-stroke curve example 2C2, the exportable pedal force-row of the utility model simulator
Non-linear pedal force-stroke curve of the different-styles such as journey curve example 3C3.
A kind of control method of the active pedal simulator of above-mentioned brake-by-wire, carries out according to the following steps：
1）, one share 3 kinds of working conditions：
（1）Idle state；
（2）Conventional brake state；
（3）Alternate brake state；
2）, motor electronic control unit judge which kind of work is system be in by judging pedal angle sensor live signal
Make state；
3）, according to working condition determine motor action：
a）If, be in idle condition, i.e., when not braked, first piston and second piston are in initial position, electricity
Machine is motionless；
b）If, be in conventional brake state, motor electronic control unit according to the signal of pedal angle sensor passes come
Control motor rotation；
c）If, be in alternate brake state, i.e., when the active pedal simulator of brake-by-wire breaks down, closed type simulation
Device is opened and closed solenoid valve power-off and closes, and active mode simulator is stopped, and the power-off of open type master cylinder isolation solenoid valve is opened, by
Alternate brake circuit provides vehicle braking force.
It should be understood that the embodiment is merely to illustrate the utility model rather than limitation the scope of the utility model.In addition
It should be understood that after reading the content taught by the present invention, those skilled in the art can make the utility model various
Change or modification, these equivalent forms also fall within the scope of the appended claims of the present application.
Claims (5)
1. a kind of active pedal simulator of brake-by-wire, which is characterized in that including pedal gear, master cylinder, active mould
Intend device and motor electronic control unit, pedal angle sensor, the pedal angle are electrically connected on the pedal gear
Sensor is electrically connected with motor electronic control unit, is disposed with first piston and in the master cylinder from left to right
One end of one spring, first spring is against on the right side of first piston, and the other end of first spring is against
On master cylinder inner wall, the pedal gear is connected by the left side of push rod and first piston, the active simulation
Device includes simulator master cylinder, is arranged in simulator master cylinder second piston, the leading screw being arranged in simulator master cylinder, setting exist
Motor, driving wheel on simulator master cylinder side wall and with the matched driven wheel of driving wheel, the motor and motor electronic control
Unit processed is electrically connected, and is connected at the output shaft of the motor and the center of driving wheel, is led between the leading screw and driven wheel
Two-direction thrust bearing connection is crossed, is provided with and the matched feed screw nut of leading screw, the simulator master cylinder on the leading screw
Master cylinder track, feed screw nut both sides corresponding with master cylinder track are provided on interior both sides corresponding with leading screw inner wall
It is provided with ball grooves on outer wall, ball is provided in the ball grooves, the side of the ball is against the side wall of ball grooves
On, the other side of the ball is against on master cylinder orbit sidewall, is set with second spring on the leading screw, and described second
One end of spring is against on feed screw nut, and the other end of the second spring is against in second piston, the simulator master
Cylinder, which is located on the wall of second piston side, is provided with oil inlet and outlet, and the master cylinder is located on the wall of the first spring side and leads to
Oil circuit is crossed to connect with oil inlet and outlet.
2. the active pedal simulator of a kind of brake-by-wire according to claim 1, which is characterized in that the pedal exerciser
Structure includes fixing bracket, pedal and pedal arm, and the pedal is fixed on pedal arm lower end, the pedal arm upper end and fixation
Holder pivots connect, and the push rod is hinged with pedal arm.
3. the active pedal simulator of a kind of brake-by-wire according to claim 1, which is characterized in that the braking master
Cylinder is located on the wall of the first spring side has alternate brake circuit by oil circuit connection.
4. the active pedal simulator of a kind of brake-by-wire according to claim 3, which is characterized in that described is active
Be provided on oil circuit between simulator and master cylinder closed type simulator opening and closing solenoid valve, the alternate brake circuit with
Open type master cylinder isolation solenoid valve is provided on oil circuit between master cylinder.
5. the active pedal simulator of a kind of brake-by-wire according to claim 1 or 2 or 3, which is characterized in that described
It is provided with the first piston sealing ring being close to master cylinder inner wall on first piston, is provided in the second piston and mould
The second piston sealing ring that quasi- device master cylinder inner wall is close to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820087013.0U CN207875613U (en) | 2018-01-18 | 2018-01-18 | A kind of active pedal simulator of brake-by-wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820087013.0U CN207875613U (en) | 2018-01-18 | 2018-01-18 | A kind of active pedal simulator of brake-by-wire |
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| Publication Number | Publication Date |
|---|---|
| CN207875613U true CN207875613U (en) | 2018-09-18 |
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ID=63507474
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|---|---|---|---|
| CN201820087013.0U Active CN207875613U (en) | 2018-01-18 | 2018-01-18 | A kind of active pedal simulator of brake-by-wire |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109927697A (en) * | 2018-11-23 | 2019-06-25 | 万向钱潮股份有限公司 | A kind of automobile brake-by-wire device |
| CN109927695A (en) * | 2018-01-18 | 2019-06-25 | 万向钱潮股份有限公司 | A kind of active pedal simulator of brake-by-wire and its control method |
| CN112406829A (en) * | 2020-12-10 | 2021-02-26 | 吉林大学 | Active brake pedal stroke simulator and control method thereof |
| CN112406836A (en) * | 2020-12-10 | 2021-02-26 | 吉林大学 | Brake-by-wire system with backup function and control method thereof |
-
2018
- 2018-01-18 CN CN201820087013.0U patent/CN207875613U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109927695A (en) * | 2018-01-18 | 2019-06-25 | 万向钱潮股份有限公司 | A kind of active pedal simulator of brake-by-wire and its control method |
| CN109927695B (en) * | 2018-01-18 | 2020-10-23 | 万向钱潮股份有限公司 | Wire-controlled active pedal simulator and control method thereof |
| CN109927697A (en) * | 2018-11-23 | 2019-06-25 | 万向钱潮股份有限公司 | A kind of automobile brake-by-wire device |
| CN112406829A (en) * | 2020-12-10 | 2021-02-26 | 吉林大学 | Active brake pedal stroke simulator and control method thereof |
| CN112406836A (en) * | 2020-12-10 | 2021-02-26 | 吉林大学 | Brake-by-wire system with backup function and control method thereof |
| CN112406829B (en) * | 2020-12-10 | 2024-03-05 | 吉林大学 | Active brake pedal stroke simulator and control method thereof |
| CN112406836B (en) * | 2020-12-10 | 2024-03-05 | 吉林大学 | Wire control braking system with backup function and control method thereof |
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