CN206254996U - Electric booster braking system - Google Patents
Electric booster braking system Download PDFInfo
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- CN206254996U CN206254996U CN201620887045.XU CN201620887045U CN206254996U CN 206254996 U CN206254996 U CN 206254996U CN 201620887045 U CN201620887045 U CN 201620887045U CN 206254996 U CN206254996 U CN 206254996U
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Abstract
The utility model provides a kind of electric booster braking system, it includes electrodynamic braking power-assisted coupling device, using hollow ball screw mechanism, the gear wheel of the electrodynamic braking power-assisted coupling device is engaged with a little gear, the little gear is connected to the output shaft of motor, an electronic control unit is connected between the motor and the electrodynamic braking power-assisted coupling device, for controlling the motor to work.The utility model electric booster braking system is used as power source by motor, using two-stage movement conversion mechanism, it is possible to achieve motor turns to translation, the first order is gear reduction, and the second level is hollow ball screw mechanism, its simple structure, size is small, transmission efficiency.The decoupling that motor servo power and people are stepped between brake pedal force is realized by branch sleeve so that motor-driven servo-assisted system does not influence driver to step on brake pedal feel when working.
Description
Technical field
The utility model is related to field of automobile brake, more particularly to a kind of electric booster braking system.
Background technology
With the development of electric automobile and intelligent automobile, new requirement is proposed to brakes, if autonomous produce
The brake force (active brake) of needs, can realize braking energy recovering function, and can match chassis active safety system
Function.For example, the control of anti-blocking brake system (ABS, Anti-lock Braking System), Anti-slip regulation (ASR,
Acceleration Skid control system), vehicle stability controlled system (ESC, Electronic Stability
) and adaptive learning algorithms (ACC, Adaptive Cruise Control) etc. controller.
Traditional brake fluid system uses vacuum booster and master cylinder, wheel cylinder system.Wherein, vacuum booster is needed
Vacuum is extracted by engine.However, electric automobile eliminates traditional engine structure, using motor as driving
Device, this vacuum booster for allowing for conventional hydraulic braking loses function.Simultaneously as electric automobile regenerative braking capability
Demand, it is desirable in Brake energy recovery control process, drags the regenerative braking force of generation, and do not wish simultaneously using motor is counter as far as possible
Hope that driver is actuated wheel cylinder by pedal and clamps the friction brake force participation braking procedure that brake disc is produced, this is accomplished by system
Dynamic system can realize the decoupling of friction brake force and regenerative braking force.
In recent years, many electric automobiles are ensured using vavuum pump instead of the vacuum of engine extraction vacuum booster
The assist function of brakes.However, vavuum pump scheme needs the interim work of motor to ensure vacuum, that is, driving
Under the not braking operating mode of member, motor is also required to work.And, in continuous braking, brake pressure can gradually decay the system, can
Potential safety hazard can be brought.The system cannot realize that assist rate is adjustable, and the function such as active brake, can not be with other controls of chassis
The system integration processed, has certain limitation.Meanwhile, the volume of vavuum pump and air accumulator is larger, is unfavorable for save space.
Current electric booster braking patent, such as E-ACT series of products made in Japan, it uses core motor as power
Source, using ball screw as transmission mechanism, actuates master cylinder and produces brake force.This kind of scheme, due to the chi of core motor
It is very little larger, hence in so that the volume and quality of system are all very huge, and its complex structure, be unfavorable for automobile lightweight and
Energy-conservation.Another, the ibooster series of products that such as Bosch is released, it uses worm and gear and rack-and-pinion as driver
Structure, this kind of scheme, transmission it is less efficient, the performance requirement to motor is higher, is also unfavorable for the energy-conservation of cost savings and automobile.
The brakes that such as patent CN104118416A is proposed, the kind of drive using core motor plus ball-screw is straight
Connect the translation for being converted to leading screw of motor, centre lacks deceleration Zeng Niu mechanisms, so as to increased the need to Motor torque
Ask, cause the oversized of motor.Whole system does not have return spring, and when power-assisted is released, leading screw and push rod are all had no idea
Home position is returned to, the position difference of each pedal push rod can bring the mutation of feel, and cannot precise control.This system
The ball recess of pedal push rod is too remote at the link of push rod and pedal, and driver can be caused to step on the power of brake pedal in sealing
Excessive deflecting force is produced at circle, mechanism kinematic is hindered.
System such as shown in patent CN104709096A, using unilateral gear rack system as movement conversion mechanism, meeting
Certain deflecting force is produced, so as to larger resistance can be produced in the case of current of electric increase, mechanism blockage is easily caused.
Manpower and motor force be direct-coupling on tooth bar, therefore during motor failure, manpower demand overcomes the anti-towing tension square of motor, leads
Cause backup brake force not enough.
Utility model content
The technical problems to be solved in the utility model is hidden in order to overcome brakes in the prior art to easily cause safety
A kind of defect of trouble, there is provided electric booster braking system.
The utility model is to solve above-mentioned technical problem by following technical proposals：
A kind of electric booster braking system, its feature is that the electric booster braking system includes electrodynamic braking power-assisted
Coupling device, using hollow ball screw mechanism, the gear wheel of the electrodynamic braking power-assisted coupling device is engaged with a little gear,
The little gear is connected to the output shaft of motor, and an electricity is connected between the motor and the electrodynamic braking power-assisted coupling device
Sub-control unit, for controlling the motor to work.
It is preferred that the electrodynamic braking power-assisted coupling device includes：Pedal push rod；
Ball-screw and power-assisted sleeve, the power-assisted sleeve are embedded in the ball-screw；
Branch sleeve, one end of the pedal push rod is connected with one end of the branch sleeve, the branch sleeve it is another
One end is embedded in one end of the power-assisted sleeve；
Power-assisted body push rod, one end of the power-assisted body push rod is connected with the branch sleeve, and the other end is located in described helping
One first elastomeric element is provided with power sleeve, and on the power-assisted body push rod so that first elastomeric element is fastened on institute
State between branch sleeve and the power-assisted sleeve, to drive the power-assisted body push rod to move by promoting the pedal push rod；
The other end of the power-assisted sleeve is provided with reaction tray and master cylinder push rod, and the reaction tray connects with the master cylinder push rod
Connect, the end of the master cylinder push rod is provided with the second elastomeric element.
It is preferred that being connected using ball pivot between the pedal push rod and the branch sleeve, the branch sleeve and described
Interference fit is used between power-assisted body push rod.
It is preferred that the electrodynamic braking power-assisted coupling device also includes booster end cap, the booster end cap is set in
The outside of the ball-screw, is provided with a PTS induction coil on the outer surface of the booster end cap；
A PTS iron core is provided with the booster end cap, the PTS iron core is installed
In a PTS installation axle, and the PTS installation axle is arranged on the branch sleeve, is made
The PTS induction coil is parallel to each other with the PTS iron core.
It is preferred that the nut of the gear wheel and the ball-screw is connected as a single entity, in the nut two of the ball-screw
End is provided with bearing.
It is preferred that the ball-screw is hollow type, the inner surface of the power-assisted sleeve is provided with stepped projection, and built-in
In the ball-screw.
It is preferred that the reaction tray is made of rubber, and the inner ring of the reaction tray and the one of the power-assisted body push rod
End in contact, the stepped projection contacts of the outer ring of the reaction tray and the power-assisted sleeve.
It is preferred that one end of the power-assisted body push rod is located in the power-assisted sleeve, and have between the reaction tray
One first gap；
There is one second gap, second gap is more than described first between the branch sleeve and the power-assisted sleeve
Gap.
It is preferred that first elastomeric element and second elastomeric element use return spring.
It is preferred that one end of second elastomeric element mounts elastically, the other end is arranged on the booster end
Cover；
The master cylinder push rod is connected on the piston of master cylinder, and fluid reservoir is also associated with the master cylinder.
Positive effect of the present utility model is：
The utility model electric booster braking system is used as power source by motor, using two-stage movement conversion mechanism, can
To realize the translation that turns to of motor, the first order is gear reduction, and the second level is hollow ball screw mechanism, the letter of its structure
Single, size is small, transmission efficiency.The decoupling that motor servo power and people are stepped between brake pedal force is realized by branch sleeve, is made
Obtaining when motor-driven servo-assisted system works does not influence driver to step on brake pedal feel.
Brief description of the drawings
The above and other feature of the utility model, property and advantage will pass through with reference to the accompanying drawings and examples
Describe and become apparent, identical reference represents identical feature all the time in the accompanying drawings, wherein：
Fig. 1 is the structural representation of the utility model electric booster braking system.
Fig. 2 is the power brake control principle drawing of the utility model electric booster braking system.
Fig. 3 is the active brake control principle drawing of the utility model electric booster braking system.
Fig. 4 is the change assist rate schematic diagram of the utility model electric booster braking system.
Specific embodiment
It is that above-mentioned purpose of the present utility model, feature and advantage can be become apparent, below in conjunction with accompanying drawing to this practicality
New specific embodiment elaborates.
Now with detailed reference to Description of Drawings embodiment of the present utility model.It is preferable to carry out referring in detail to of the present utility model
Example, its example is shown in the drawings.In the case of any possible, will mark to represent phase using identical in all of the figs
Same or similar part.Although additionally, the term used in the utility model be from public term select,
It is that some terms mentioned in the utility model specification are probably that applicant carrys out selection by his or her judgement, its is detailed
Implication explanation in the relevant portion of description herein.In addition, it is desirable to not only by the actual terms for being used, and be also to
The meaning that is contained by each term understands the utility model.
Fig. 1 is the structural representation of the utility model electric booster braking system.Fig. 2 is the electric boosted system of the utility model
The power brake control principle drawing of dynamic system.Fig. 3 is the active brake control principle of the utility model electric booster braking system
Figure.Fig. 4 is the change assist rate schematic diagram of the utility model electric booster braking system.
As shown in Figures 1 to 4, the utility model discloses a kind of electric booster braking system, it includes that electrodynamic braking is helped
Power coupling device 10, using hollow ball screw mechanism, the little gear of gear wheel 100 and of electrodynamic braking power-assisted coupling device 10
20 engagements, little gear 20 is connected to the output shaft 31 of motor 30, and is provided with steam vent 32 at the two ends of output shaft.In the He of motor 30
An electronic control unit 40 is connected between electrodynamic braking power-assisted coupling device 10, is worked for controlled motor 30.
Preferably, electrodynamic braking power-assisted coupling device 10 includes pedal push rod 11, ball-screw 12, power-assisted sleeve 13, company
Female connector cylinder 14 and power-assisted body push rod 15.Wherein, power-assisted sleeve 13 is embedded in ball-screw 12.One end of pedal push rod 11 and company
One end connection of female connector cylinder 14, and the other end of branch sleeve 14 is embedded in one end of power-assisted sleeve 13.Power-assisted body push rod 15
One end be connected with branch sleeve 14, the other end is located in power-assisted sleeve 13, and is provided with one first on power-assisted body push rod 15
Elastomeric element 16 so that the first elastomeric element 16 is fastened between branch sleeve 14 and power-assisted sleeve 13, with by promoting pedal
Push rod 11 is moved driving power-assisted body push rod 15.The other end of power-assisted sleeve 13 is provided with reaction tray 17 and master cylinder push rod 18,
Reaction tray 17 is connected with master cylinder push rod 18, the second elastomeric element 19 is provided with the end of master cylinder push rod 18.Here the first bullet
Property the elastomeric element 19 of part 16 and second preferably by return spring, one end of the second elastomeric element 19 is arranged on spring base
On 191, the other end is arranged on the booster end cap.Master cylinder push rod 18 is connected on the piston of master cylinder 200, braking master
Fluid reservoir 300 is also associated with cylinder 200.
Further, connected using ball pivot between pedal push rod 11 and branch sleeve 14, and in branch sleeve 14 and power-assisted
Interference fit is used between body push rod 15.
Additionally, electrodynamic braking power-assisted coupling device 10 also includes booster end cap, the booster end cap is set in ball
The outside of leading screw 12.Here booster end cap includes booster rear end cap 50 and booster drive end bearing bracket 51, in booster rear end
A PTS induction coil 52 is provided with the outer surface of lid.A pedal travel is provided with the booster end cap
Sensor iron core 53, PTS iron core 53 is arranged in a PTS installation axle 54, and pedal row
Journey sensor installation axle 54 is arranged on branch sleeve 14, makes PTS induction coil 52 and PTS
Iron core 53 is parallel to each other.PTS iron core 53 and PTS induction coil 52 are respectively positioned in driving cabin,
And PTS induction coil 52 and motor 30 are connected by electric wire with electronic control unit 40.
Preferably, the nut of gear wheel 100 and ball-screw 12 is connected as a single entity, and is provided with the nut two ends of ball-screw 12
Bearing 60.Ball-screw 12 herein is preferably hollow type, and stepped projection is provided with the inner surface of power-assisted sleeve 13, and built-in
In ball-screw 12.
In addition, reaction tray 17 is made of rubber, and in the inner ring and the end thereof contacts of power-assisted body push rod 15 of reaction tray 17,
So that the stepped projection contacts of the outer ring of reaction tray 17 and power-assisted sleeve 13.
One end of power-assisted body push rod 15 is located in power-assisted sleeve 13, and has one first gap S between reaction tray 17.Even
There is one second gap X, the second gap X to be more than (preferably only slightly larger than) the first gap S between female connector cylinder 14 and power-assisted sleeve 13.
According to said structure, the course of work of the utility model electric booster braking system is：When driver steps on braking
During pedal, pedal force is delivered on pedal push rod 11, and pedal push rod 11 can promote branch sleeve 14 to travel forward, branch sleeve 14
PTS iron core 53 can be driven to move, and promote power-assisted body push rod 15 to advance, PTS iron core 53 is transported
It is dynamic to produce induced signal on PTS induction coil 52.Power-assisted body push rod 15 applies power after overcoming gap S
Onto reaction tray 17, now reaction tray 17 is deformed upon, inner ring due to the applying of power-assisted body push rod 15 power occur depression so as to
Produce a deformation quantity S1.
The deformation quantity S1 of the signal measurement inner ring that electronic control unit 40 passes through PTS induction coil 52, be
The concave shape variable of reaction tray 17 is made up, gear wheel is driven by little gear 20 by the controlled motor 30 of electronic control unit 40
100 rotate, so as to drive the nut rotation of ball-screw 12 and cause the leading screw translation of ball-screw 12, ball-screw 12 drives
Power-assisted sleeve 13 advances, so that the outer ring of the stepped raised and reaction tray 17 of power-assisted sleeve 13 contacts so that reaction tray
17 outer ring edge stress, so as to make up the concave shape variable S1 of the inner ring of reaction tray 17.
Meanwhile, electronic control unit 40 measures the shape of reaction tray outer ring by the Hall sensor 33 that motor 30 is carried indirectly
Variable S2, and the controlled quentity controlled variable X1 of motor is obtained according to following equation：X1=S1-S2, control targe causes that the value of X1 levels off to zero,
Namely so that the deformation of reaction tray disappears.The power of so driver's pedal causes that the inner ring of reaction tray 17 produces deformation, electricity
Sub-control unit 40 is worked by controlled motor 30 make up this deformation again, is iteratively repeated this process, is applied to power-assisted body push rod
Manpower on 15 is superimposed with the motor force being applied on power-assisted sleeve 13 at reaction tray 17 so that the inside and outside circle of reaction tray 17
Deformation is balanced, and macroscopically reaction tray 17 does not produce deformation, and master cylinder push rod is promoted under the collective effect of motor force and manpower
18 advance, and brake force is produced so as to actuate master cylinder 200, realize electric booster braking function, now Electric booster
Assist rate is the area ratio of the inner ring of reaction tray 17 and outer ring.
When the driver releases the brake pedal, pedal push rod 11 can drive branch sleeve 14 to move backward, branch sleeve 14
PTS iron core 53 can be driven to move backward, and drive power-assisted body push rod 15 to move backward, power-assisted body push rod 15 is applied
The manpower being added in reaction tray 17 is gradually decreased.Now, the inside and outside circle stress balance of reaction tray 17 is broken, reaction tray 17
There is convex change in inner ring, its deflection is S2.Electronic control unit 40 is passed by PTS iron core 53 and pedal travel
Induced signal between sensor induction coil 52 measures the deformation quantity S2 of the inner ring of reaction tray 17, and controlled motor 30 passes through little gear
20 drive gear wheels 100 are rotated so as to drive the nut rotation of ball-screw 12, and cause the leading screw translation of ball-screw 12.Rolling
Ballscrew 12 drives power-assisted sleeve 13 to retreat, so that the outer ring for reducing the stepped raised and reaction tray 17 of power-assisted sleeve 13 contacts
Power, make up the deformation quantity S1 of the convex change of the inner ring of reaction tray 17.
Meanwhile, electronic control unit 40 measures the shape of reaction tray outer ring by the Hall sensor 33 that motor 30 is carried indirectly
Variable S2, and the controlled quentity controlled variable X1 of motor is obtained according to following equation：X1=S2-S1, control targe causes that the value of X1 also levels off to
Zero, that is, cause that the deformation of reaction tray disappears.It is iteratively repeated this process so that it is flat that the inside and outside cast of reaction tray 17 becomes holding
Weigh, macroscopically reaction tray 17 does not produce deformation, and power-assisted body push rod 15 and power-assisted sleeve 13 to retreat jointly.
When power-assisted body push rod 15 is backed to no longer to be contacted with reaction tray 17, motor 30 no longer works.Now, master cylinder
The returning place force collective effect of 200 hydraulic coupling and the second elastomeric element 19 so that motor 30, reaction tray 17, the and of master cylinder push rod 18
Power-assisted sleeve 13 returns to initial position.Meanwhile, the first elastomeric element 16 causes that pedal push rod 11, branch sleeve 14 and power-assisted body are pushed away
Bar 15 returns to initial position.
During electronic control unit, motor, power supply or sensor failure when electric booster braking system, driver steps on
The power of pedal is delivered on pedal push rod 11, and pedal push rod 11 can promote branch sleeve 14 to travel forward, and branch sleeve 14 can be pushed away
Dynamic power-assisted body push rod 15 advances, and power-assisted body push rod 15 is exerted a force in reaction tray 17 after overcoming gap S.Now reaction tray 17
Inner ring is deformed upon, and after power-assisted body push rod 15 moves on overcomes gap X, branch sleeve 14 and power-assisted sleeve 13 are contacted, from
And applying power is in the outer ring of reaction tray 17.So as to integrated pushing reaction tray 17 is advanced so as to promote master cylinder push rod 18, and actuate system
Dynamic master cylinder 200 produces brake force, and motor 30 does not work during this, and part brake force is produced only by manpower, meets emergent
Brake legislation demand.
When driver does not have brake pedal, if electronic control unit 40 by vehicle-mounted other sensors 41 (such as
Radar, camera) information judge need to implement active brake or other control devices send active brake when asking (as urgent
Braking, automatic Pilot etc.), brakes is worked under active brake pattern.Electronic control unit 40 is by vehicle-mounted under this pattern
The signal of other sensors 41 sends control signal by judging to motor 30, and motor 30 drives gear wheel 100 by little gear 20
Rotate the nut rotation so as to drive ball-screw 12 and cause the leading screw translation of ball-screw 12, ball-screw 12 drives power-assisted
Sleeve 13 advances, so that the outer ring of the stepped raised and reaction tray 17 of power-assisted sleeve 13 contacts so that reaction tray 17
Outer ring edge stress.Because now power-assisted body push rod 15 is not acted on the inner ring of reaction tray 17, compensatory reactionBu Changfanying disk 17 of having no idea
Deformation quantity, because reaction tray 17 is quality of rubber materials, when its deformation quantity to a certain extent after, will have rigid body characteristic, from
And master cylinder push rod 18 is promoted, and actuate the generation brake force of master cylinder 200.
As shown in Fig. 2 when system is in normal power brake working condition, system is obtained by PTS 70
The displacement information S1 that driver steps on brake pedal is obtained, the displacement information S2 of motor is obtained by motor Hall sensor, by inclined
Difference controller N1 obtains control deviation X1：X1=S2-S1, is then now needed by position deviation command analysis module N2
To the desired value of the control command of motor 30, then control command is compensated by friction, damping compensation curve N3 again, most
The final control command of motor 30 is obtained afterwards, and brake pressure is produced so as to actuate master cylinder 200.
As shown in figure 3, when system has the initiative braking operation state, system is (thunderous by vehicle-mounted other sensors 41
Reach, image first-class) environmental information of vehicle periphery is obtained, and the desired control electric current of motor is obtained by command analysis module Z1
I1, motor obtains the actual current information i2 of motor by motor current sensor 28, is controlled by deviation controller Z2
Offset command I:I=i2-i1, then controlled motor 30 actuate master cylinder 200 produce brake pressure.Under active brake function,
Once electronic control unit 40 detects driver's brake pedal, then power brake function is switched to.
As shown in figure 4, the change assist rate operation principle of system into：Motor power-assisted act on reaction tray 17 outer ring and people it is defeated
Enter the inner ring that power acts on reaction tray 17, the inner ring deflection S1 of reaction tray 17, race deformation amount S2.When assist rate g is set to g=
During g0, control targe is set as X1：X1=S2-S1+0, that is, ensure that the inside and outside cast variable difference of reaction tray 17 is always
Zero.
If necessary to assist rate g>During g0, then can be realized by setting control targe, even control targe is X1：X1=
S2-S1+X0, that is, ensure that the inside and outside cast variable difference of reaction tray 17 is always a constant positive value X0.If necessary to power-assisted
Compare g<During g0, then can be realized by setting control targe, even control targe is X1：X1=S2-S1+X0, that is, ensure
The inside and outside cast variable difference of reaction tray 17 is always a constant positive value-X0.Just can be real by the size for changing X0 and-X0
Existing different assist rate.
In sum, the utility model electric booster braking system is used as power source by motor, is moved by two-stage and turned
Converting mechanism, realizes the translation that turns to of motor, and the first order is gear reduction, and the second level is hollow ball screw mechanism, knot
Structure is simple, and size is small, transmission efficiency.The solution that motor servo power and people are stepped between brake pedal force is realized by branch sleeve
Coupling so that motor-driven servo-assisted system does not influence driver to step on brake pedal feel when working.Brake pedal push rod position
In the hollow interior of ball-screw, in the case of motor failure, or system cut-off, the power that people steps on brake pedal can be by system
Dynamic pedal push rod, promotes power-assisted sleeve, directly actuates master cylinder piston and produces backup brake force, with failure backup functionality.
Meanwhile, the microsensor that the utility model electric booster braking system has installed electromagnetic type additional in branch sleeve comes
The displacement of branch sleeve is measured, so as to be used for carrying out operator brake intention assessment, this scheme causes electricity of the present utility model
Dynamic energy assisted braking system modularization, more compact structure, it is to avoid install sensor additional on brake pedal.Sensor is located at driving cabin
It is interior, sensor water-proof and temperature grade are reduced, advantageously reduce cost.
Further, the utility model electric booster braking system gathers operator brake and anticipates by PTS
Figure, by the controlled motor of electronic control unit 40, realizes electric booster braking function, and adjustable with pedal sense, assist rate can
Regulatory function.In the case where driver does not step on brake pedal, electronic control unit 40 can be by other brake commands
(such as the active brake order based on radar or visual sensing), controlled motor promotes power-assisted sleeve, is produced so as to actuate master cylinder piston
Raw brake force, realizes active brake function.Now, due to brake pedal push rod be located at ball-screw it is hollow in, itself and motor
Mobile decoupling, therefore, motion during motor active brake will not drive brake pedal to move together, such that it is able to reduce motor
Load in active brake.
Secondly, the utility model electric booster braking system is also provided with louvre in the link position of motor and gear shaft,
Because electrodynamic braking system is located at enging cabin, therefore classification of waterproof is high, and seal is high, ventilative by air-vent, can avoid
Motor internal condenses vapor.
Although the foregoing describing specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
These are merely illustrative of, and protection domain of the present utility model is defined by the appended claims.Those skilled in the art
Member can make numerous variations or repair to these implementation methods on the premise of without departing substantially from principle of the present utility model and essence
Change, but these changes and modification each fall within protection domain of the present utility model.
Claims (10)
1. a kind of electric booster braking system, it is characterised in that the electric booster braking system includes electrodynamic braking power-assisted coupling
Attach together and put, using hollow ball screw mechanism, the gear wheel of the electrodynamic braking power-assisted coupling device is engaged with a little gear, institute
The output shaft that little gear is connected to motor is stated, an electronics is connected between the motor and the electrodynamic braking power-assisted coupling device
Control unit, for controlling the motor to work.
2. electric booster braking system as claimed in claim 1, it is characterised in that the electrodynamic braking power-assisted coupling device bag
Include：
Pedal push rod；
Ball-screw and power-assisted sleeve, the power-assisted sleeve are embedded in the ball-screw；
Branch sleeve, one end of the pedal push rod is connected with one end of the branch sleeve, the other end of the branch sleeve
It is embedded in one end of the power-assisted sleeve；
Power-assisted body push rod, one end of the power-assisted body push rod is connected with the branch sleeve, and the other end is located in the power-assisted set
In cylinder, and one first elastomeric element is provided with the power-assisted body push rod so that first elastomeric element is fastened on the company
Between female connector cylinder and the power-assisted sleeve, to drive the power-assisted body push rod to move by promoting the pedal push rod；
The other end of the power-assisted sleeve is provided with reaction tray and master cylinder push rod, and the reaction tray is connected with the master cylinder push rod,
The end of the master cylinder push rod is provided with the second elastomeric element.
3. electric booster braking system as claimed in claim 2, it is characterised in that the pedal push rod and the branch sleeve
Between using ball pivot connect, between the branch sleeve and the power-assisted body push rod use interference fit.
4. electric booster braking system as claimed in claim 2, it is characterised in that the electrodynamic braking power-assisted coupling device is also
Including booster end cap, the booster end cap is set in the outside of the ball-screw, the outer surface of the booster end cap
On be provided with a PTS induction coil；
A PTS iron core is provided with the booster end cap, the PTS iron core is arranged on one
In PTS installation axle, and the PTS installation axle is arranged on the branch sleeve, is made described
PTS induction coil is parallel to each other with the PTS iron core.
5. electric booster braking system as claimed in claim 2, it is characterised in that the gear wheel and the ball-screw
Nut is connected as a single entity, and bearing is provided with the nut two ends of the ball-screw.
6. electric booster braking system as claimed in claim 5, it is characterised in that the ball-screw is hollow type, described
The inner surface of power-assisted sleeve is provided with stepped projection, and is built in the ball-screw.
7. electric booster braking system as claimed in claim 2, it is characterised in that the reaction tray is made of rubber, and
The end thereof contacts of the inner ring of the reaction tray and the power-assisted body push rod, the rank of the outer ring of the reaction tray and the power-assisted sleeve
Scalariform projection contacts.
8. electric booster braking system as claimed in claim 7, it is characterised in that one end of the power-assisted body push rod is located at institute
State in power-assisted sleeve, and there is one first gap between the reaction tray；
There is one second gap, between second gap is more than described first between the branch sleeve and the power-assisted sleeve
Gap.
9. electric booster braking system as claimed in claim 2, it is characterised in that first elastomeric element and described second
Elastomeric element uses return spring.
10. electric booster braking system as claimed in claim 2, it is characterised in that one end peace of second elastomeric element
On spring base, the other end is arranged on the booster end cap；
The master cylinder push rod is connected on the piston of master cylinder, and fluid reservoir is also associated with the master cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620887045.XU CN206254996U (en) | 2016-08-16 | 2016-08-16 | Electric booster braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620887045.XU CN206254996U (en) | 2016-08-16 | 2016-08-16 | Electric booster braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206254996U true CN206254996U (en) | 2017-06-16 |
Family
ID=59023754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620887045.XU Withdrawn - After Issue CN206254996U (en) | 2016-08-16 | 2016-08-16 | Electric booster braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206254996U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106240552A (en) * | 2016-08-16 | 2016-12-21 | 上海汇众汽车制造有限公司 | Electric booster braking system |
| CN107757380A (en) * | 2017-11-03 | 2018-03-06 | 吉林大学 | A kind of integrated electric energy assisted braking system |
| CN107776563A (en) * | 2017-11-24 | 2018-03-09 | 吉林大学 | A kind of adjustable electric booster braking system of gearratio |
| CN110027534A (en) * | 2018-01-12 | 2019-07-19 | 比亚迪股份有限公司 | Pedal simulator, line control brake system and vehicle |
-
2016
- 2016-08-16 CN CN201620887045.XU patent/CN206254996U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106240552A (en) * | 2016-08-16 | 2016-12-21 | 上海汇众汽车制造有限公司 | Electric booster braking system |
| CN106240552B (en) * | 2016-08-16 | 2018-12-11 | 上海汇众汽车制造有限公司 | Electric booster braking system |
| CN107757380A (en) * | 2017-11-03 | 2018-03-06 | 吉林大学 | A kind of integrated electric energy assisted braking system |
| CN107757380B (en) * | 2017-11-03 | 2019-01-18 | 吉林大学 | A kind of integrated electric energy assisted braking system |
| CN107776563A (en) * | 2017-11-24 | 2018-03-09 | 吉林大学 | A kind of adjustable electric booster braking system of gearratio |
| CN110027534A (en) * | 2018-01-12 | 2019-07-19 | 比亚迪股份有限公司 | Pedal simulator, line control brake system and vehicle |
| CN110027534B (en) * | 2018-01-12 | 2021-09-21 | 比亚迪股份有限公司 | Pedal simulator, brake-by-wire system and vehicle |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170616 Effective date of abandoning: 20181211 |