CN208682810U - A kind of electrical servo brake apparatus with multiple-working mode - Google Patents
A kind of electrical servo brake apparatus with multiple-working mode Download PDFInfo
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- CN208682810U CN208682810U CN201821347774.1U CN201821347774U CN208682810U CN 208682810 U CN208682810 U CN 208682810U CN 201821347774 U CN201821347774 U CN 201821347774U CN 208682810 U CN208682810 U CN 208682810U
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- gear
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- pedal
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Abstract
The utility model discloses the electrical servo brake apparatus with multiple-working mode, shell is connect with end cap, and a cavity is formed between the shell and end cap, ball-screw is installed at the center of the cavity, transmission mechanism is connect with ball-screw, for output torque driving master cylinder to realize that servo brake, the piston of master cylinder are mounted in shell, the piston is pushed by pushing mechanism in its braking direction, and pushing mechanism is connect with pedal gear.The utility model has the beneficial effects that supporting Brake energy recovery, its small stroke line traffic control having the function of can guarantee to realize that Brake energy recovery maximizes under most of operating conditions, when the rotary angle transmitter connecting with pedal or the rotary angle transmitter connecting with ball-screw break down, two rotary angle transmitters tactful can switch to determine power-assisted size, improve the reliability of brake apparatus, it can work under a variety of braking modes, and has the function of failure backup manual braking, meet the braking requirement under different operating conditions.
Description
Technical field
The utility model belongs to automobile brake technical field, watches more particularly, to a kind of electronic with multiple-working mode
Take brake apparatus.
Background technique
Brake system of car is closely related safely with running, in addition to traditional vacuum servo formula braking, electric boosted
Formula servo brake system and the anti-blocking brake system to grow up on the basis of the two (ABS) outside, also develop in recent years
Novel line control brake system, such as electronic hydraulic brake system (EHB) and mechanical type brake system electric (EMB).
Line control brake system can neatly coordinate friction catch and regenerative braking, realize autonomous system with also can be convenient
Dynamic, requirement of line control brake system in terms of meeting Brake energy recovery, active is better than the Hydraulic braking system of transmission
System.
Electrical servo brake assembly abbreviation eBooster, principle are to perceive brake pedal row using pedal travel sensor
The braking intention of journey and driver, and brake servo controller is transmitted a signal to, drive the motor work in servo brake assembly
Make, driving transmission device amplifies pedal force to motor again, operating pressure needed for making master cylinder generate braking.
But the self-service brake actuator in electrical servo brake assembly is the production for relying on the production of import foreign countries mostly
The price of product, product is higher, and is also to need independent import on matched components from main breaking zone device, leads to state
The use processing cost of interior manufacturing and processing enterprise is high, and domestic enterprise selectively can not carry out lasting performance to automobile and change
Into, the reduction of system optimization and cost.
Utility model content
That the purpose of the utility model is to provide a kind of structures is simple, easy to operate, production cost is low, can have a variety of systems
Dynamic model formula, the electrical servo brake apparatus with multiple-working mode to meet braking requirement under different operating conditions.
The technical solution of the utility model is as follows:
A kind of electrical servo brake apparatus with multiple-working mode, including shell, end cap, master cylinder, ball wire
Thick stick, transmission mechanism, pushing mechanism and pedal gear, the shell are connect with end cap, and form one between the shell and end cap
Cavity installs the ball-screw at the center of the cavity, and the transmission mechanism is connect with the ball-screw, is turned for exporting
Square drives the master cylinder to realize that servo brake, the piston of the master cylinder are mounted in the shell, and the piston is logical
It crosses the pushing mechanism to be pushed in its braking direction, the pushing mechanism is connect with pedal gear, and the pushing mechanism is for passing
Pass the motive force of the pedal gear.
In the above-mentioned technical solutions, the ball-screw includes screw, first bearing and second bearing, and the screw passes through
First bearing, second bearing are connect with the inner face of shell, end cap respectively, and 3rd bearing and are equipped on the ball-screw
Three bolts, and the 3rd bearing, third bolt are mounted in the guide groove of the shell, for guaranteeing that the ball-screw will not
It rotates so that ball-screw edge is moved axially back and forth.
In the above-mentioned technical solutions, the transmission mechanism includes motor, first gear, duplicate gear, second gear and company
Spindle, the motor are mounted on the outside of the shell, and the output shaft of the motor is connect with first gear, the shell with
The connecting shaft is installed, the side of the screw is arranged in the connecting shaft, and the other side passes through key and described second between end cap
Gear connection, the connecting shaft are connect by fourth bearing with circlip with the duplicate gear, the duplicate gear and the first tooth
Wheel engagement connection, the second gear engage connection, the first sensor gear and the first corner with first sensor gear
Sensor connection, the first sensor gear and the first rotary angle transmitter can mutual induction, for incuding ball-screw
Stroke is equipped with second sensor gear on the pushing mechanism.
In the above-mentioned technical solutions, the pushing mechanism include primary push rod, auxiliary push-rod, U-shaped hinge, bulb, pallet and
One end of cover board, the U-shaped hinge is connect with the pedal gear, and the other end passes through the cover board, the first locking nut and ball
One end connection of head, the other end of the bulb are connected by the second locking nut, nut and primary push rod, and the primary push rod is separate
One end of the bulb stretches in end cap, one end connection of the primary push rod one end and auxiliary push-rod far from bulb, described
The other end of auxiliary push-rod is connect with the pallet, and reaction tray is equipped in the pallet, and the front end of the reaction tray is equipped with
One mandril, the mandril are connect with the piston of the master cylinder, for pushing the master cylinder to move.
In the above-mentioned technical solutions, one end of the pallet is mounted in the hole of the ball-screw, and the two can be
It is relatively moved in axial direction, the auxiliary push-rod is installed in one end of the pallet, and the other end installs the reaction tray.
In the above-mentioned technical solutions, the both ends of the pallet offer the first hole and the second hole respectively, first hole
Less than the aperture in the second hole, the auxiliary push-rod is mounted in the first hole in aperture, and the reaction tray is mounted in the second hole.
In the above-mentioned technical solutions, the primary push rod is equipped with rack gear, the second sensor gear and the rack gear phase
Cooperation, the second sensor gear are connect with the second rotary angle transmitter.
In the above-mentioned technical solutions, the pedal gear includes pedal and taper spring, and the taper spring is mounted on institute
It states between end cap and nut, for acting on the primary push rod, and guarantees that the pedal is maintained at initial bit when not being operated
It sets.
In the above-mentioned technical solutions, reset spring is installed between the pallet and shell.
In the above-mentioned technical solutions, the end cap is equipped with screw rod, for connecting with external pedal support.
The utility model has the advantages and positive effects of:
1. the servo brake of the utility model supports Brake energy recovery, the small stroke line traffic control having the function of can
Guarantee to realize that Brake energy recovery maximizes under most of operating conditions, and will not influence brake pedal feel.
2. install two rotary angle transmitters in device, it connect when the rotary angle transmitter being connect with pedal or with ball-screw
When rotary angle transmitter breaks down, two rotary angle transmitters can strategy switching to determine power-assisted size, that improves brake apparatus can
By property.
3. can be used cooperatively with ABS, ESC and AEB/ACC system, the scope of application of device is improved.
4. the present apparatus can work under a variety of braking modes, and have the function of failure backup manual braking, to meet not
With the braking requirement under operating condition.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the electrical servo brake apparatus with multiple-working mode of the utility model；
Fig. 2 is the E-E sectional view of Fig. 1.
In figure:
1, master cylinder 2, shell 3, reset spring
4, mandril 5, pallet 6, auxiliary push-rod
7, the first rotary angle transmitter 9, first sensor gear 10, second gear
11, key 12, ball-screw 13, end cap
14, second sensor gear 15, taper spring 16, primary push rod
17, the second locking nut 18, nut 19, bulb
20, U-shaped hinge 21, the first locking nut 22, cover board
23, screw 24, second bearing 26, screw rod
27, circlip 28, fourth bearing 29, duplicate gear
30, first gear 31, reaction tray 32, first bearing
33, connecting shaft 34, motor 35,3rd bearing
36, third bolt
Specific embodiment
The utility model is described in further detail below in conjunction with specific embodiment.It should be appreciated that described herein
Specific embodiment is used only for explaining the utility model, is not used to limit the protection scope of the utility model.
Embodiment 1
As Figure 1-Figure 2, the electrical servo brake apparatus with multiple-working mode of the utility model, including shell
2, end cap 13, master cylinder 1, ball-screw 12, transmission mechanism, pushing mechanism and pedal gear, shell 2 are connect with end cap 13,
And a cavity is formed between the shell 2 and end cap 13, ball-screw 12, transmission mechanism and ball are installed at the center of the cavity
Lead screw 12 connects, for output torque driving master cylinder 1 to realize that servo brake, the piston of master cylinder 1 are mounted on shell 2
Interior, which is pushed by pushing mechanism in its braking direction, and pushing mechanism is connect with pedal gear, which is used for
Transmit the motive force of pedal gear；Ball-screw 12 includes screw 23, first bearing 32 and second bearing 24, and screw 23 leads to respectively
Cross first bearing 32, second bearing 24 is connect with the inner face of shell 2, end cap 13,3rd bearing is installed on ball-screw 12
35 and third bolt 36, and the 3rd bearing 35, third bolt 36 are mounted in the guide groove of shell 2, for guaranteeing ball wire
Thick stick 12, which not can rotate, to be translatable.Transmission mechanism includes motor 34, first gear 30, duplicate gear 29, second gear 10 and connects
Spindle 33, motor 34 are mounted on the outside of shell 2, and the output shaft of motor 34 is connect with first gear 30, in shell 2 and end cap 13
Between connecting shaft 33 is installed, connecting shaft 33 is arranged in the side of screw 23, and the other side is connect by key 11 with second gear 10, company
Spindle 33 is connect by fourth bearing 28 with circlip 27, duplicate gear 29, and duplicate gear 29 engages connection with first gear 30, the
Two gears 10 engage connection with first sensor gear 9, and first sensor gear 9 connect (the first biography with the first rotary angle transmitter 7
Sensor gear 9 is a kind of gear with sensor, is meshed and connect with second gear 10, and passes through the first rotation angular sensing
The cooperation induction of device 7 measures the stroke of ball-screw 12), first sensor gear 9, the first rotary angle transmitter 7 form power-assisted stroke
Sensor is equipped with second sensor gear 14 for measuring the stroke of ball-screw 12 on pushing mechanism；Pushing mechanism packet
Include primary push rod 16, auxiliary push-rod 6, U-shaped hinge 20, bulb 19, pallet 5 and cover board 22, one end of U-shaped hinge 20 and pedal gear
Connection, the other end are connect by cover board 22, the first locking nut 21 with one end of bulb 19, and the other end of bulb 19 passes through second
Locking nut 17, nut 18 are connect with primary push rod 16, and primary push rod 16 stretches in end cap 13 far from one end of bulb 19, primary push rod
16 one end far from bulb 19 is connect with one end of auxiliary push-rod 6, and the other end of auxiliary push-rod 6 is connect with pallet 5,5 in pallet
Reaction tray 31 is installed, the front end of reaction tray 31 is equipped with a mandril 4, and mandril 4 is connect with the piston of master cylinder 1, for pushing away
Dynamic master cylinder 1 moves；Primary push rod 16 is equipped with rack gear, and second sensor gear 14 is matched with rack gear, second sensor tooth
Wheel 14 connect (the i.e. a kind of gear with sensor of second sensor gear 14, with primary push rod 16 with the second rotary angle transmitter
Rack gear be meshed, and measure the stroke of pedal with the cooperation induction of the second rotary angle transmitter), second sensor gear 14, the
Two rotary angle transmitters form pedal travel sensor；Pedal gear includes pedal and taper spring 15, and taper spring 15 is mounted on
Between end cap 13 and nut 18, for acting on primary push rod 6, and guarantee that pedal is maintained at initial position when not being operated.
One end of above-mentioned pallet 5 is mounted in the hole of ball-screw 12, and the two can relatively move in the axial direction, pallet
The first hole is offered on 5, auxiliary push-rod 6 is installed in the first hole, and auxiliary push-rod 6 and pallet 5 opposite in the axial direction can move
It is dynamic, the second hole is offered on pallet 5, and installation reaction tray 31 the second hole in, the aperture of the aperture in the first hole less than the second hole.
Reset spring 3 is installed between above-mentioned pallet 5 and shell 2.
Above-mentioned end cap 13 is equipped with screw rod 26, for connecting with external pedal support.
When autonomous braking mode uses the electrical servo brake apparatus of the utility model:
On automobile electric-control system (such as AEB system) to servo brake issue brake request, 34 output torque of motor,
Motor 34 drives first gear 30 to rotate, so that duplicate gear 29, second gear 10, screw 23 successively be driven to push pallet 5, anti-
31 and the Forward of mandril 4 should be coiled, active force is applied to master cylinder 1, generates braking action.
Embodiment 2
The electrical servo brake apparatus of the utility model is used under On-line Control dynamic model formula:
Under brake-by-wire mode, the gap between the annular end face of pallet 5 and the front end face of auxiliary push-rod 6 is
S0, pedal force will not be sent in reaction tray 31, and pedal force is entirely to be provided by taper spring 15.
Under line traffic control mode, after driver steps on pedal, the pedal force of pedal is transferred to circular cone bullet via U-shaped hinge 20
On spring 15, it will be sent in pedal on auxiliary push-rod 6 again under the action of push rod 16；Since required target braking force is by vapour
The regenerative braking of the power motor of vehicle generates, and target braking force depends on the stroke of pedal, and (pedal travel is passed by second
Sensor gear 14, the second rotary angle transmitter measure).
When the power battery of automobile allows to charge or regenerative braking power is higher than target braking force, by the power motor of automobile
It is braked.When the power battery of automobile does not allow to charge or regenerative braking power is lower than target braking force, then produced by motor 34
Raw servo brake power, i.e. 34 output torque of motor, by first gear 30, duplicate gear 29, second gear 10, the biography of screw 23
It is dynamic, it is converted into thrust, then push master cylinder 1 via reaction tray 31, mandril 4, realizes servo brake.
Wherein, the braking deceleration maximum under line traffic control mode reaches 0.25g.
Embodiment 3
The electrical servo brake apparatus of the utility model is used under power brake mode,
The annular end face of control pallet 5 is aligned with the front end face of auxiliary push-rod 6, to reach the annular end face of pallet 5
Gap S0 between the front end face of auxiliary push-rod 6 is eliminated, and guarantees that reaction tray 31 reacts on the power of ball-screw 12 and push rod
As fixed ratio.First rotary angle transmitter (contactless rotary angle transmitter) that first sensor gear 9 connects is silk
Thick stick stroke sensor, to measure 12 stroke of ball-screw.When the displacement difference of control push rod 16 and ball-screw 12 is 0, regeneration
Braking is exited, and brake force is all provided by friction brake.
Wherein, braking deceleration is greater than 0.25g.
Above-mentioned reaction tray 31 is made of rubber material.
Embodiment 4
When servo brake system failure, after driver steps on pedal, pedal is stepped on to the lowest order of two push rods, it is main
Driving a reaction disk 31 is acted on master cylinder 1 and is generated to drive mandril 4 to move under the action of push rod 16, auxiliary push-rod 6
Brake pressure realizes manpower backup braking.
The spatially relative terms such as "upper", "lower", "left", "right" have been used in embodiment for ease of explanation, have been used for
Relationship of the elements or features relative to another elements or features shown in explanatory diagram.It should be understood that in addition to figure
Shown in except orientation, spatial terminology is intended to include the different direction of device in use or operation.For example, if in figure
Device be squeezed, the element for being stated as being located at other elements or feature "lower" will be located into other elements or feature "upper".
Therefore, exemplary term "lower" may include both upper and lower orientation.Device, which can be positioned in other ways, (to be rotated by 90 ° or position
In other orientation), it can be interpreted accordingly used herein of the opposite explanation in space.
Moreover, the relational terms of such as " first " and " second " or the like are used merely to one with another with identical
The component of title distinguishes, without necessarily requiring or implying between these components there are any this actual relationship or
Sequentially.
One embodiment of the utility model is described in detail above, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
Equivalent variations and improve etc., should still belong within the patent covering scope of the utility model.
Claims (10)
1. a kind of electrical servo brake apparatus with multiple-working mode, it is characterised in that: including shell (2), end cap (13),
Master cylinder (1), ball-screw (12), transmission mechanism, pushing mechanism and pedal gear, the shell (2) and end cap (13) are even
It connects, and forms a cavity between the shell (2) and end cap (13), the ball-screw (12) is installed at the center of the cavity,
The transmission mechanism is connect with the ball-screw (12), drives the master cylinder (1) to realize servo for output torque
Braking, the piston of the master cylinder (1) are mounted in the shell, and the piston is by the pushing mechanism in its braking direction
It is pushed, the pushing mechanism is connect with pedal gear, which is used to transmit the motive force of the pedal gear.
2. electrical servo brake apparatus according to claim 1, it is characterised in that: the ball-screw (12) includes screw
(23), first bearing (32) and second bearing (24), the screw (23) pass through first bearing (32), second bearing (24) difference
It is connect with the inner face of shell (2), end cap (13), 3rd bearing (35) and third bolt is installed on the ball-screw (12)
(36), and the 3rd bearing (35), third bolt (36) are mounted in the guide groove of the shell (2), for guaranteeing the rolling
Ballscrew (12) not can rotate.
3. electrical servo brake apparatus according to claim 2, it is characterised in that: the transmission mechanism includes motor
(34), first gear (30), duplicate gear (29), second gear (10) and connecting shaft (33), the motor (34) are mounted on institute
The outside of shell (2) is stated, the output shaft of the motor (34) is connect with first gear (30), in the shell (2) and end cap
(13) it is installed between the connecting shaft (33), the connecting shaft (33) is arranged in the side of the screw (23), and the other side passes through
Key (11) is connect with the second gear (10), and the connecting shaft (33) passes through fourth bearing (28) and circlip (27), duplex-gear
(29) connection is taken turns, the duplicate gear (29) engages connection, the second gear (10) and the first sensing with first gear (30)
Device gear (9) engagement connection, the first sensor gear (9) connect with the first rotary angle transmitter (7), in the pushing mechanism
On second sensor gear (14) are installed.
4. electrical servo brake apparatus according to claim 3, it is characterised in that: the pushing mechanism includes primary push rod
(16), auxiliary push-rod (6), U-shaped hinge (20), bulb (19), pallet (5) and cover board (22), one end of the U-shaped hinge (20)
It is connect with the pedal gear, the other end is connected by one end of the cover board (22), the first locking nut (21) and bulb (19)
It connects, the other end of the bulb (19) is connect by the second locking nut (17), nut (18) with primary push rod (16), described featured
Bar (16) stretches in end cap (13) far from the one end of the bulb (19), the one end of the primary push rod (16) far from bulb (19)
It is connect with one end of auxiliary push-rod (6), the other end of the auxiliary push-rod (6) is connect with the pallet (5), the pallet (5)
It is inside equipped with reaction tray (31), the front end of the reaction tray (31) is equipped with a mandril (4), the mandril (4) and the braking
The piston of master cylinder (1) connects, for pushing the master cylinder (1) to move.
5. electrical servo brake apparatus according to claim 4, it is characterised in that: one end of the pallet (5) is mounted on
In the hole of the ball-screw (12), and the two can relatively move in the axial direction, and one end installation of the pallet (5) is described auxiliary
Boosting bar (6), the other end install the reaction tray (31).
6. electrical servo brake apparatus according to claim 5, it is characterised in that: open respectively at the both ends of the pallet (5)
Equipped with the first hole and the second hole, less than the aperture in the second hole, the auxiliary push-rod (6) is mounted on first for the aperture in first hole
In hole, the reaction tray (31) is mounted in the second hole.
7. electrical servo brake apparatus according to claim 6, it is characterised in that: the primary push rod (16) is equipped with tooth
Item, the second sensor gear (14) match with the rack gear, and the second sensor gear (14) and the second corner pass
Sensor connection.
8. electrical servo brake apparatus according to claim 7, it is characterised in that: the pedal gear includes pedal and circle
It bores spring (15), the taper spring (15) is mounted between the end cap (13) and nut (18), for acting on the master
Push rod (16), and guarantee that the pedal is maintained at initial position when not being operated.
9. electrical servo brake apparatus according to claim 8, it is characterised in that: between the pallet (5) and shell (2)
Reset spring (3) are installed.
10. electrical servo brake apparatus according to claim 9, it is characterised in that: the end cap (13) is equipped with screw rod
(26), for being connect with external pedal support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821347774.1U CN208682810U (en) | 2018-08-21 | 2018-08-21 | A kind of electrical servo brake apparatus with multiple-working mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821347774.1U CN208682810U (en) | 2018-08-21 | 2018-08-21 | A kind of electrical servo brake apparatus with multiple-working mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208682810U true CN208682810U (en) | 2019-04-02 |
Family
ID=65886247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821347774.1U Active CN208682810U (en) | 2018-08-21 | 2018-08-21 | A kind of electrical servo brake apparatus with multiple-working mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208682810U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108860120A (en) * | 2018-08-21 | 2018-11-23 | 宁波多维吉汽车科技有限公司 | A kind of electrical servo brake apparatus with multiple-working mode |
| CN112224191A (en) * | 2020-10-22 | 2021-01-15 | 合肥工业大学 | Integrated motor hydraulic brake |
-
2018
- 2018-08-21 CN CN201821347774.1U patent/CN208682810U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108860120A (en) * | 2018-08-21 | 2018-11-23 | 宁波多维吉汽车科技有限公司 | A kind of electrical servo brake apparatus with multiple-working mode |
| CN112224191A (en) * | 2020-10-22 | 2021-01-15 | 合肥工业大学 | Integrated motor hydraulic brake |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190505 Address after: 210000 288 Qinhuai Road, Yung Yang Street, Lishui District, Nanjing, Jiangsu Patentee after: Nanjing Jingweida Automobile Technology Co., Ltd. Address before: Room 0908, Haitian Building, No. 16, 72 Lane, Wenjiao Road, Jiangbei District, Ningbo City, Zhejiang Province Patentee before: Ningbo multidimensional Auto Technology Co., Ltd. |