CN110027522A - Pedal simulator, line control brake system and vehicle - Google Patents
Pedal simulator, line control brake system and vehicle Download PDFInfo
- Publication number
- CN110027522A CN110027522A CN201810031472.1A CN201810031472A CN110027522A CN 110027522 A CN110027522 A CN 110027522A CN 201810031472 A CN201810031472 A CN 201810031472A CN 110027522 A CN110027522 A CN 110027522A
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- China
- Prior art keywords
- push rod
- elastic component
- pedal
- transmission mechanism
- mounting base
- 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.)
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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
- 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
- B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Elements And Transmission Devices (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a kind of pedal simulators, line control brake system and vehicle, the pedal simulator includes: push rod, two elastic components, pushing mechanism and booster parts, one end of each elastic component is only against on push rod and the other end is equipped with pressure-bearing portion, two elastic components are sequentially distributed along the axial direction of push rod, push rod will be often pressed on push rod by pushing mechanism near the pressure-bearing portion of the elastic component of push rod, the pressure-bearing portion of two elastic components is separated from each other in the axial direction when push rod is in lifting position, the pressure-bearing portion of the elastic component of neighbouring push rod successively pushes against the elastic component far from push rod in adjacent elastic component, booster parts auxiliary pushing component pushing and pressing push rod or can act on pushing mechanism far from push rod direction.The force compensating that push rod is subject to by booster parts as a result, or retardance, so as to during operator brake, it is possible to provide give driver's feedback force appropriate, promote pedal sense.
Description
Technical field
The present invention relates to technical field of vehicle, in particular to a kind of pedal simulator, line control brake system and vehicle
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Background technique
In the related technology, when vehicle needs to brake, driver steps on brake pedal under needing.For conventional truck, pass
Hydraulic or mechanical connection between the brake pedal and brake of system vehicle, the braking reaction force of braking system feedback can be straight
It connects and acts on pedal to provide comfortable, reasonable brake feel for driver.And due to the addition of electric braking on electric vehicle
And hydraulic or mechanical connection the cancellation between brake pedal and brake, feedback arrives when driver can not directly perceive braking
Reaction force (i.e. the Rigid Feedback of pedal) on brake pedal, causes the brake feel of driver bad, influences driver's
Driving experience.
Summary of the invention
The present invention is directed to solve one of above-mentioned technical problem in the prior art at least to a certain extent.For this purpose, this hair
It is bright to propose a kind of pedal simulator, the pedal simulator can feasible simulation pedal force, promote pedal sense, improve and drive
Experience.
The invention also provides a kind of line control brake system and vehicle with above-mentioned pedal simulator.
According to a first aspect of the present invention the pedal simulator of embodiment include: push rod, two elastic components, pushing mechanism and
One end of booster parts, each elastic component is only against on the push rod and the other end is equipped with pressure-bearing portion, described two bullets
Property part is sequentially distributed along the axial direction of the push rod, and the push rod will be near the elastic component of the push rod by the pushing mechanism
Pressure-bearing portion be often pressed on the push rod, the push rod is in the pressure-bearing portion of described two elastic components when lifting position described
It is separated from each other in axial direction, and when the push rod is moved towards the elastic component, the bullet of neighbouring push rod in adjacent elastic component
Property part pressure-bearing portion successively push against the elastic component far from the push rod, the booster parts are configured to assist the promotion
Component pushes against the push rod or acts on the pushing mechanism towards far from the push rod direction.
Pedal simulator according to an embodiment of the present invention, when push rod pushes, pushing mechanism is first to one of elastic component
Downward pressure is generated, after pedal is trampled to enough depth, another elastic component is in the second pushed section and pushing mechanism
It is compressed under effect, reaction force can be fed back to push rod when elastic component is compressed.When two elastic components feed back to the power of push rod
When less than driver to actual demand (i.e. the target pedal force) of pedal force, the feedback force that booster parts need to should be subject to push rod is done
It compensates out, i.e., booster parts need to be supplied to the upward power of push rod, so as to be provided to driver good for the feedback force for being subject to push rod
Good brake feel；When the power that two elastic components feed back to push rod is greater than actual demand of the driver to pedal force, (i.e. target is stepped on
Plate power) when, the feedback force that booster parts need to should be subject to push rod blocks, i.e., it is downward need to be supplied to push rod for booster parts
Power, so that the feedback force for being subject to push rod can be supplied to driver's brake feel appropriate through brake pedal.
According to some embodiments of the present invention, the pedal simulator further include: control element, displacement sensor and power
Sensor, institute's displacement sensors are electrically connected with the control element, to detect the current displacement of the push rod and believe displacement
Number it is sent to control element, the force snesor is electrically connected with the control element, to detect suffered by the push rod when being pushed forward
Thrust signal is simultaneously sent to control element by power, and the booster parts are described when forward thrust and corresponding default of current displacement
When thrust is unequal, control the booster parts obtain it is electric and by the pushing mechanism by thrust in the push rod, until
It is described when forward thrust it is equal with the default thrust.
In some embodiments, described two elastic components are sequentially distributed along the axial direction of the push rod, two elastic components it is rigid
Degree is sequentially increased on the direction extended from the push rod to the booster parts.
Optionally, each elastic component includes at least one spring, and the spring is appointing in disc spring and compressed spring
It is a kind of.
In some embodiments, described two elastic components are respectively positioned on the side that the pushing mechanism deviates from the push rod, most
It is only supported and is matched with the pushing mechanism by the pressure-bearing portion being plugged in the pushing mechanism close to the elastic component of the push rod
It closes.
According to some embodiments of the present invention, the pushing mechanism includes multiple being spaced apart and being connected to each other in the axial direction
Push-plate, the moving member is located between the push-plate of arbitrary neighborhood, and the booster parts have power output member, and the power is defeated
One of push-plate can be pushed against when part is towards the pushrod movement out along first direction, the power output member deviates from the push rod
Another push-plate can be pushed against when movement in a second direction, the first direction is opposite with the second direction.
Further, described two push-plates are connected by multiple connecting rods, and the multiple connecting rod is around the push-plate
It is circumferentially uniformly distributed, the moving member and the push rod face in the axial direction.
In some embodiments, the booster parts include: driving motor, the first transmission mechanism and the second driver
Structure, the driving motor have output shaft, and first transmission mechanism includes driving link, driven member, the driving link and described
Driven member transmission engagement, the driving link are connect with the output shaft by retarder, and first transmission mechanism is chain conveyer
Any one of mechanism, gear drive, tape handler, Worm and worm-wheel gearing, second transmission mechanism include
Rotating member and moving member, the rotating member and the moving member by screw-driven or by gear teeth meshing, the rotating member with
The driven member connection, the moving member are formed as the power output member of the booster parts, and second transmission mechanism is tooth
Take turns any one of rack gear, screw nut driving mechanism, ball-screw transmission mechanism.
Further, the pedal simulator includes: simulator mounting base, transmission mechanism mounting base and elastic component installation
Seat, the simulator mounting base is interior to be equipped with guide chute, and the pushing mechanism is slidingly disposed in the guide chute, described
A part of second transmission mechanism is located in the simulator mounting base, and the transmission mechanism mounting base has installation chamber, institute
The another part for stating the first transmission mechanism and second transmission mechanism is located in the installation cavity room, the driving motor it is defeated
Shaft protrudes into the installation cavity room, and the simulator mounting base and the driving motor are connected to the transmission mechanism and pacify
Fill the two sides of seat, one end of the elastic component mounting base connect with transmission mechanism mounting base, the elastic component mounting base it is another
End is abutted against with the elastic component.
Further, the transmission mechanism mounting base have with the oilhole that is connected of installation chamber, in the oilhole
Equipped with closing its sealing bolt.
Optionally, pedal simulator further includes telescopic dust cover, and one end of the dust cover and the elastic component connect
It connects and the other end is fixedly connected with the pushing mechanism.
The line control brake system of embodiment according to a second aspect of the present invention, including such as above-mentioned pedal mould as described in the examples
Quasi- device.
Further, the present invention also proposes that a kind of vehicle includes: brake pedal and pedal simulator, the one of the push rod
End is connect with the brake pedal and the other end is abutted against with the pushing mechanism.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the schematic diagram of pedal simulator and brake pedal according to an embodiment of the present invention；
Fig. 2 is the schematic diagram of pedal simulator according to an embodiment of the present invention.
Appended drawing reference:
Pedal simulator 100, brake pedal 200,
Simulator mounting base 11, transmission mechanism mounting base 12, blanking cover 121, elastic component mounting base 13,
Push rod 2, elastic component 3, pressure-bearing portion 31, pushing mechanism 4, push-plate 41, connecting rod 42,
Booster parts 5, driving motor 51, retarder 52, the first transmission mechanism 53, driving link 531, driven member 532, second
Transmission mechanism 54, moving member 541, rotating member 542, dust cover 6, fastener 7, elastic component abut seat 8.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Currently, line control brake system is a completely new arrestment mechanism, it is on braking drive organ function and touch device
Innovation.Line control brake system eliminates traditional brake fluid system, provides braking energy source with motor, is driven with electric signal transmission
The person's of sailing braking intention, executing agency are electric mechanical braking actuator.When vehicle braking, driver's brake pedal 200,
Brake pedal 200 has pedal simulator 100, and pedal travel signal can pass through CAN (controller local area network: Controller
Area Network) bus is sent to controller.Controller receives speed wheel speed, current of electric and rotor-position signal simultaneously,
It is analyzed by comprehensive calculating, controller issues control signal.Power driving circuit is according to the control signal of controller to electronics
The driving part (such as linear motor) of mechanical braking actuator (such as drum brake or disk brake) provide it is correspondingly sized and
The electric current in direction, to control the direction of motion of driving part, thrust size, movement velocity.It is held in this way, driving part drives again
Row mechanism (such as parking brake actuator or service brake executing agency) is defeated by wheel and implements to brake to generate brake force.
One 100 simulating brake pedal of pedal simulator, 200 characteristic of the line control brake system, it is biggish to eliminate volume
The component of the conventional hydraulics braking system such as vacuum brake assistor, master cylinder, oil conservator is simulated using purely mechanic pedal
Device eliminates intermediate variable (hydraulic, air pressure etc.), improves the integrability degree of vehicle, and the response time is fast, mechanical performance
It is good.Importantly, the pedal simulator 100 of the embodiment of the present invention is that the driving experience based on line traffic control control technology is poor, and
Existing pedal simulator 100 cannot accurately, intuitively feed back pressure suffered by force snesor and the improvement that carries out.
Pedal simulator 100 according to an embodiment of the present invention is described below with reference to Fig. 1 to Fig. 2.
As depicted in figs. 1 and 2, the pedal simulator 100 of embodiment includes: push rod 2, two according to a first aspect of the present invention
One end of elastic component 3, pushing mechanism 4 and booster parts 5, each elastic component 3 is only against on push rod 2 and the other end is equipped with and holds
Splenium 31, two elastic components 3 are sequentially distributed along the axial direction of push rod 2, and push rod 2 will be near the elasticity of push rod 2 by pushing mechanism 4
The pressure-bearing portion 31 of part 3 is often pressed on push rod 2, and the pressure-bearing portion 31 of two elastic components 3 is in the axial direction when push rod 2 is in lifting position
It is separated from each other, and when push rod 2 is moved towards elastic component 3, the pressure-bearing of the elastic component 3 of neighbouring push rod 2 in adjacent elastic component 3
Portion 31 successively pushes against the elastic component 3 far from push rod 2, booster parts 5 be configured to auxiliary pushing component 4 push against push rod 2 or
Pushing mechanism 4 is acted on towards far from 2 direction of push rod.
It is understood that pushing mechanism 6 first generates downward pressure to one of elastic component 3 when push rod 2 pushes
Power, after pedal is trampled to enough depth, another elastic component 3 quilt under the action of the second pushed section 22 and pushing mechanism 4
Reaction force, can be fed back to push rod 2 by compression when elastic component 4 is compressed.When the power that two elastic components 3 feed back to push rod 2 is less than
When driver is to actual demand (i.e. the target pedal force) of pedal force, the feedback force that booster parts 5 need to should be subject to push rod 2 is made
Compensation, i.e., booster parts 5 need to be supplied to the upward power of push rod 2, so as to be provided to driver good for the feedback force for being subject to push rod 2
Good brake feel；When the power that two elastic components 4 feed back to push rod 2 is greater than driver to actual demand (the i.e. target of pedal force
Pedal force) when, the feedback force that booster parts 5 need to should be subject to push rod 2 blocks, i.e., booster parts 4 need to be supplied to push rod 2 to
Under power, so that the feedback force for being subject to push rod 2 can be supplied to driver's brake feel appropriate through brake pedal 200.
That is, brake pedal 200 can push push rod 2 to move, when push rod 2 is mobile, leading portion stroke only oppresses one
A deformation of elastic component 3 obtains pressure feedback, and back segment stroke push rod 2 will push two elastic components 3, at this time two elastic components 3
It acts on push rod 2 simultaneously, so that pedal simulator 100 can make to stop the bullet supported with 21 phase of the first pushed section when stress is smaller
Property part 3 preferentially shrink, and during 2 stress of push rod is gradually increased, make to stop the elastic component 3 supported with push rod 2, in pushing mechanism
It is gradually tapered up under the action of 4, in this way simulating the pedal force of pedal simulator 100, the effect is more real.
It should be noted that brake feel include pedal brake feeling, driver experience vehicle braking deceleration, listen
The many factors such as brake noise and visual vehicle deceleration in feel.Wherein, pedal brake feels that pedal moves down displacement
With the effect of the multinomial aggregation of data feedback such as pedal feedback power, pedal brake feels mostly important, and good pedal brake is felt
The driving experience of driver can be improved.
The working principle of the pedal simulator of the embodiment of the present invention are as follows: the design object of pedal force is by 3 He of elastic component
Certain control method comes out pedal simulated behavior.Since the active force of elastic component 3 has linear characteristic mostly, and pedal force is special
Property sometimes for be nonlinear, therefore the method that is combined with booster parts 5 using elastic component 3 of the present invention simulate pedal by
The reaction force (i.e. pedal force) arrived, i.e., using the driving force of the elastic force of elastic component 3 and booster parts 5 come comprehensive simulation pedal
Power.Wherein, elastic component 3 provides based-pedal power, guarantees that braking system works " brake feel " of real-time pedal, booster parts 5
Target pedal force is provided together with elastic component 3, the remainder between compensation or retardance based-pedal power and target pedal force.
Pedal simulator 100 according to an embodiment of the present invention is sequentially distributed there are two elastic component 3 in the axial direction of push rod 2,
And then when driver tramples brake pedal 200, the elastic component 3 that neighbouring push rod 2 is arranged preferentially is shunk, thus two elastic components 3
It successively shrinks to provide feedback force, and when the feedback force of two elastic components 3 and target pedal force are inconsistent, passes through booster parts
5 pairs are adjusted when forward thrust, keep feedback force consistent with target pedal force, so that pedal simulator 100 can be stepped on braking
The stress variation of different phase, gives the unused force feedback of driver, to promote driving experience on plate 200.
In addition, can make brake pedal 200 fast by two elastic components 3 and booster parts 5 after vehicle is completed to brake
Speed returns back to original state (the natural stretching state of brake pedal 200 when not trampling brake pedal 200), to improve vehicle
Job stability.
It should be noted that driver, during driving vehicle, meeting is according to driving situation, to the traveling of current vehicle
State is adjusted.That is, slowing down in driver to vehicle with follow the bus when driving, light brake-apply 200 is needed
To slow down, brought to a halt to vehicle in driver so as to need brake pedal fast and accurately when vehicle stop motion
200 trample the terminal of braking distance.In above process, it is clear that slow down and be applied to brake pedal 200 with driver when brake
Power be different, and then by setting two elastic components 3, allow pedal simulator 100 according to the practical operation of driver
Situation feeds back thrust multi-level out, so that pedal simulator 100 can provide the feedback force for being more nearly target pedal force.
According to some embodiments of the present invention, pedal simulator 100 further include: control element, displacement sensor and power
Sensor, displacement sensor are electrically connected with control element, to detect the current displacement of push rod 2 and displacement signal is sent to control
Element, force snesor are electrically connected with control element, to detect suffered by push rod 2 when forward thrust and thrust signal being sent to control
Element, when the forward thrust default thrust corresponding with current displacement is unequal, control booster parts 5 obtain electric booster parts 5
And pass through pushing mechanism 4 for thrust in push rod 2, until when forward thrust is equal with default thrust.
It optionally, include ECU and current amplifier in control element, current amplifier can be to Current amplifier.Such knot
Structure setting preferably regulates and controls the working condition of booster parts 5 convenient for control element.
Specifically, 2 displacement of push rod and the force snesor feedback that control element is fed back by displacement sensor push away
2 stress of bar, and default thrust when it is reached the displacement with push rod 2 preset in control element is compared, and pre-
If thrust works with booster parts 5 when forward thrust is inconsistent, are made, and pushes push rod 2 far from elastic component 3 by booster parts 5
Or moved towards elastic component 3, to increase or decrease feedback force provided by two elastic components 3, so that when forward thrust and in advance
If thrust is consistent.In this way, being adjusted by booster parts 5 to when forward thrust, to make provided by pedal simulator 100
Thrust is more nearly default thrust.
In some embodiments, two elastic components 3 are sequentially distributed along the axial direction of push rod 2, and the rigidity of two elastic components 3 is certainly
It is sequentially increased on the direction that push rod 2 extends to booster parts 5.That is, being got over the rigidity of the elastic component 3 closer to push rod 2
Small, the rigidity further away from the elastic component 3 of push rod 2 is bigger.
As a result, by the way that multiple rigidity and the different elastic component 33 of coefficient of elasticity is arranged, so that pedal simulator 100 can be with
When stress is smaller, makes two elastic components 3 under the pressure of push rod 3 while shrinking, and the rigidity of elastic component 3 is made to keep stablizing,
Not only can be improved pedal simulator 100 thrust adjust accuracy and job stability, but also can by rigidity compared with
Big elastic component 3 shares the load of the lesser elastic component 3 of rigidity, so that two elastic components 3 all have longer service life.
Optionally, each elastic component 3 includes at least one spring, and spring is any one of disc spring and compressed spring.This
The selection of sample, elastic component 3 is more reasonable, can not only reduce the production cost of pedal simulator 100, but also use spring conduct
The volume of the pedal simulator 100 of elastic component 3 is smaller, and space hold is more reasonable, arranges simpler.
As shown in Figure 1, two elastic components 3 are respectively positioned on the side that pushing mechanism 4 deviates from push rod 2, near the elasticity of push rod 2
Part 3 only supports cooperation by the pressure-bearing portion 31 being plugged in pushing mechanism 4 and pushing mechanism 4.
Specifically, push rod 2 is extend into pushing mechanism 4, and by pushing pushing mechanism 4 so that elastic component 3 is shunk, and two
A elastic component 3 is located at the lower section of pushing mechanism 4.Push rod 2 is spaced apart with the elastic component 3 of 4 lower section of pushing mechanism as a result, is avoided
Push rod 2 is directly contacted with the elastic component 3 of 4 lower section of pushing mechanism, and then when booster parts 5 break down, still can be with
Guarantee the job stability that brake pedal 200 is braked.
In specific embodiment shown in Fig. 1, pushing mechanism 4 is spaced apart in the axial direction and is connected to each other including multiple
Push-plate 41, moving member 541 is located between the push-plate 41 of arbitrary neighborhood, and booster parts 5 have power output member, power output member
One of push-plate 41 can be pushed against when moving towards push rod 2 along first direction, it can be along the when power output member is moved away from push rod 2
Two directions push against another push-plate 41, and first direction is opposite with second direction.
It should be noted that first direction refers to power output member axially move closer to the direction of push rod 2, second direction refers to
Power output member is axially distant from the direction of push rod 2.
As a result, when needing booster parts 5 to compensate pedal force, control power output member is moved along first direction, two
A elastic component 3 carries out the compensation of power on the basis of being applied to the based-pedal power of push rod 2, and then makes when forward thrust (current pedal
Power) it increases to default thrust (target pedal force) unanimously；When needing booster parts 5 to block pedal force, power output is controlled
Part moves in a second direction, and based-pedal power to be applied to push rod 2 in two elastic components 3 on the basis of carries out the retardance of power.
Specifically, one is located at the top of pushing mechanism 4, another position in the push-plate 41 being spaced apart in the axial direction
In the lower section of pushing mechanism 4, and then when power output member is moved away from push rod 2, pushing and pressing are located at the push-plate of 4 lower section of pushing mechanism
41, with compression elastic piece 3, when power output member is moved towards push rod 2, pushing and pressing are located at the push-plate 41 of 4 top of pushing mechanism.With
Reduce the stress of elastic component 3.
As shown in Figure 1, two push-plates 41 are connected by multiple connecting rods 42, circumferential direction of multiple connecting rods 42 around push-plate 41
It is uniformly distributed, moving member 541 and push rod 2 face in the axial direction.Not only multiple connecting rods 42 make the stress of two push-plates 41 as a result,
More uniform, pushing mechanism 4 has higher structural stability, and moving member 541 and 2 face of push rod, and then moving member 541
It can be axially moveable on push rod 2, to limit by push rod 2 to the movement of moving member 541, improve moving member 541
Kinetic stability.
In some embodiments, booster parts 5 include: driving motor 51, the first transmission mechanism 53 and the second driver
Structure 54, driving motor 51 have output shaft, the first transmission mechanism 53 include driving link 531, driven member 532, driving link 531 and from
The transmission engagement of moving part 532, driving link 531 and output shaft are connect by retarder 52, the first transmission mechanism 53 be chain-drive mechanism,
Any one of gear drive, tape handler, Worm and worm-wheel gearing.
Second transmission mechanism 54 includes rotating member 542 and moving member 541, and rotating member 542 and moving member 541 are passed by screw thread
It moves or by gear teeth meshing, rotating member 542 is connect with driven member 532, and moving member 541 is formed as the power output of booster parts 5
Part, the second transmission mechanism 54 are rack and pinion drive mechanism, screw nut driving mechanism, any in ball-screw transmission mechanism
Kind.
The power of driving motor 51 is passed to the second transmission mechanism 54, the second driver by the first transmission mechanism 53 as a result,
Structure 54 is by the straight reciprocating motion for being converted into moving member 541 of rotating member 542, to make to push away under the action of moving member 541
Dynamic component 4 is moved towards push rod 2 or far from push rod 2, not only can pass through the first transmission mechanism 53 and the second transmission
The power of driving motor 51 is passed to pushing mechanism 4 by mechanism 54, and make transmission it is more steady, so that moving member 541 fortune
It is dynamic more steady.
As shown in Fig. 2, pedal simulator 100 includes: simulator mounting base 11, transmission mechanism mounting base 12 and elastic component
Mounting base 13, simulator mounting base 11 is interior to be equipped with guide chute, and pushing mechanism 4 is slidingly disposed in guide chute, and second passes
A part of motivation structure 54 is located in simulator mounting base 11, and transmission mechanism mounting base 12 has installation chamber, the first driver
Another part of structure 53 and the second transmission mechanism 54 is located in installation cavity room, and the output shaft of driving motor 51 protrudes into installation chamber
Interior, simulator mounting base 11 is connected to the two sides of transmission mechanism mounting base 12, and elastic component mounting base with driving motor 51
13 one end is connect with transmission mechanism mounting base 12, and the other end and the elastic component 3 of elastic component mounting base 13 abut against.
Pushing mechanism 4 is arranged in simulator mounting base 11 as a result, and by the first transmission mechanism 53 and part second
Transmission mechanism 54 is arranged in transmission mechanism mounting base 12, not only makes the arrangement of booster parts 5 and pushing mechanism 4 more adduction
Reason, and it is more stable that the sliding of pushing mechanism 4 and the power of booster parts 5 by guide chute, can be made to transmit.
In addition, elastic component 3 is abutted with transmission mechanism mounting base 12 by elastic component mounting base 13, to improve elastic component 3
With the connective stability of transmission mechanism mounting base 12, and keep the job stability of elastic component 3 higher.
It should be noted that shown in Figure 2, simulator mounting base 11 is bolted on the predetermined position on vehicle body
On, one end of transmission mechanism mounting base 12 is fixedly connected with simulator mounting base 11, and the other end is connect with elastic component mounting base 13,
It is provided with the accommodation space of elastic component 3 in elastic component mounting base 13, and elastic component mounting base 13 is fixed on by vehicle by fastener 7
With, and then supporting one end of elastic component 3 mutually only with vehicle body, the other end is only against in elastic component mounting base 13, in the system of trampling
When dynamic pedal 200, the feedback force of brake pedal 200 is provided by elastic component 3.
Certainly, the present invention is not limited thereto, another elastic component 3 can be pressed on elastic component by pushing mechanism 4 by push rod
In mounting base 13, which can be fixedly attached to one with transmission mechanism mounting base 12, simulator mounting base 11
It rises, is collectively formed as the shell of pedal simulator 100, elastic component mounting base 13 can also be with transmission mechanism mounting base 12, simulation
Device mounting base 11 is independent mutually but fixes with respect to vehicle body, and elastic component 3 can be disk spring, and disk spring can be by tight
Firmware 7 abutted with elastic component seat 8 be fixedly connected and elastic component 3 can be pressed on elastic component abut seat 8 on.
Referring to shown in Fig. 2, transmission mechanism mounting base 12 has the oilhole being connected with installation chamber, is equipped with closing in oilhole
Its sealing bolt 121.In this way, sealing bolt 121 is detachably arranged on oilhole, not only make through oilhole to installation chamber
The operation of interior filling lubricating oil is simpler, and can prevent dust from entering in installation cavity room through oilhole.
Certainly, the invention is not limited thereto, can be blocked, can also be led to oilhole by sealing bolt 121 outside oilhole
It crosses blanking cover or blocks blocking to oilhole.
In specific embodiment shown in Fig. 2, pedal simulator 100 further includes telescopic dust cover 6, dust cover 6
One end connect with elastic component 3 and the other end is fixedly connected with pushing mechanism 4.6 housing of dust cover is on push rod 2 as a result, to prevent
When throw-out lever 2 moves, dust enters the installation that simulator mounting base 11 and transmission mechanism mounting base 12 limit by push rod 2
In chamber, to improve the job stability of pedal simulator 100.
The line control brake system of embodiment according to a second aspect of the present invention, including the pedal simulator in such as above-described embodiment
100。
Line control brake system according to an embodiment of the present invention can not only make line traffic control by the way that pedal simulator 100 is arranged
Dynamic system has higher job stability, and can provide pedal force feedback in use for driver, to improve
Driving experience.
Further, the present invention also proposes that a kind of vehicle includes: brake pedal 200 and pedal simulator 100, push rod 2
One end be fixedly connected with brake pedal 200 and the other end is pivotally connected with pushing mechanism 4.
Vehicle according to an embodiment of the present invention can be pushed away when driver tramples brake pedal 200 by push rod 2
Dynamic component 4 to improve the driving experience of driver, and then makes so that pedal simulator 100 provides pedal force feedback for driver
Driver can adjust the power for trampling brake pedal 200, according to driving experience to improve the driving safety of vehicle.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
The instructions such as " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside"
Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and simplification is retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is at least two, such as two
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate with each other；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the interaction relationship of connection or two elements inside two elements.For the ordinary skill in the art,
The specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
What can be combined in any suitable manner in one or more embodiment or examples.In addition, those skilled in the art can say this
Different embodiments or examples described in bright book are engaged and are combined.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (13)
1. a kind of pedal simulator characterized by comprising
Push rod；
One end of two elastic components, two elastic components is only against on the push rod and the other end is equipped with pressure-bearing portion, described
Two elastic components are sequentially distributed along the axial direction of the push rod；
Pushing mechanism, the push rod will be often pressed on by the pushing mechanism near the pressure-bearing portion of the elastic component of the push rod
On the push rod, the push rod is spaced each other in the pressure-bearing portion of described two elastic components when being in lifting position in the axial direction
Open, and when the push rod is moved towards the elastic component, in adjacent elastic component the pressure-bearing portion of the elastic component of neighbouring push rod according to
It is secondary to push against the elastic component far from the push rod；And
Booster parts, the booster parts are configured to that the pushing mechanism is assisted to push against the push rod or towards far from described
Push rod direction acts on the pushing mechanism.
2. pedal simulator according to claim 1, which is characterized in that further include:
Control element；
Displacement sensor, institute's displacement sensors are electrically connected with the control element, to detect the current displacement of the push rod simultaneously
Displacement signal is sent to control element；And
Force snesor, the force snesor are electrically connected with the control element, work as forward thrust simultaneously suffered by the push rod to detect
Thrust signal is sent to control element, the booster parts are in the default thrust corresponding with current displacement when forward thrust
When unequal, control the booster parts obtain it is electric and by the pushing mechanism by thrust in the push rod, until described
When forward thrust is equal with the default thrust.
3. pedal simulator according to claim 1, which is characterized in that axial direction of described two elastic components along the push rod
It is sequentially distributed, the rigidity of two elastic components is sequentially increased on the direction extended from the push rod to the booster parts.
4. pedal simulator according to claim 3, which is characterized in that each elastic component includes at least one bullet
Spring, the spring are any one of disc spring and compressed spring.
5. pedal simulator according to claim 1, which is characterized in that described two elastic components are respectively positioned on the pushing part
Part deviates from the side of the push rod, and the elastic component near the push rod passes through the pressure-bearing that is plugged in the pushing mechanism
Portion and the pushing mechanism only support cooperation.
6. pedal simulator according to claim 1, which is characterized in that the pushing mechanism include two in the axial direction between
Every the push-plate for being distributed and being connected to each other, the moving member is located between the push-plate of arbitrary neighborhood, and the booster parts have power
Output can push against one of push-plate, the power along first direction when the power output member is towards the pushrod movement
Output can push against another push-plate, the first direction and the second direction in a second direction when deviating from the pushrod movement
On the contrary.
7. pedal simulator according to claim 6, which is characterized in that described two push-plates are connected by multiple connecting rods
It connects, the multiple connecting rod is uniformly distributed around the circumferential direction of the push-plate, the moving member and the push rod face in the axial direction.
8. pedal simulator described in any one of -7 according to claim 1, which is characterized in that the booster parts include:
Driving motor, the driving motor have output shaft；
First transmission mechanism, first transmission mechanism include driving link, driven member, and the driving link and the driven member are driven
Engagement, the driving link are connect with the output shaft by retarder, and first transmission mechanism is chain-drive mechanism, gear biography
Any one of motivation structure, tape handler, Worm and worm-wheel gearing；And
Second transmission mechanism, second transmission mechanism include rotating member and moving member, and the rotating member and the moving member are logical
It crosses screw-driven or by gear teeth meshing, the rotating member is connect with the driven member, and the moving member is formed as the power-assisted
The power output member of component, second transmission mechanism are rack and pinion drive mechanism, screw nut driving mechanism, ball-screw
Any one of transmission mechanism.
9. pedal simulator according to claim 8, which is characterized in that the electric mechanical simulator includes:
Simulator mounting base, the simulator mounting base is interior to be equipped with guide chute, and the pushing mechanism is slidingly disposed at described
In guide chute, a part of second transmission mechanism is located in the simulator mounting base；
Transmission mechanism mounting base, the transmission mechanism mounting base have installation chamber, first transmission mechanism and described second
Another part of transmission mechanism is located in the installation cavity room, and the output shaft of the driving motor protrudes into the installation cavity room,
The simulator mounting base and the driving motor are connected to the two sides of the transmission mechanism simulator；And
One end of elastic component mounting base, the elastic component mounting base is connect with transmission mechanism mounting base, the elastic component mounting base
The other end abutted against with the elastic component.
10. pedal simulator according to claim 9, which is characterized in that the transmission mechanism mounting base have with it is described
The oilhole that installation chamber is connected, the oilhole is interior to be equipped with the sealing bolt for closing it.
11. pedal simulator according to claim 1, which is characterized in that it further include telescopic dust cover, it is described dust-proof
One end of cover is connect with the elastic component and the other end is fixedly connected with the pushing mechanism.
12. a kind of line control brake system, which is characterized in that including pedal simulation such as of any of claims 1-11
Device.
13. a kind of vehicle characterized by comprising
Brake pedal；And
Such as pedal simulator of any of claims 1-11, one end of the push rod connect with the brake pedal and
The other end is abutted against with the pushing mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810031472.1A CN110027522B (en) | 2018-01-12 | 2018-01-12 | Pedal simulator, brake-by-wire system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810031472.1A CN110027522B (en) | 2018-01-12 | 2018-01-12 | Pedal simulator, brake-by-wire system and vehicle |
Publications (2)
| Publication Number | Publication Date |
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| CN110027522A true CN110027522A (en) | 2019-07-19 |
| CN110027522B CN110027522B (en) | 2021-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810031472.1A Active CN110027522B (en) | 2018-01-12 | 2018-01-12 | Pedal simulator, brake-by-wire system and vehicle |
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| CN (1) | CN110027522B (en) |
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| CN110027522B (en) | 2021-09-21 |
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