CN206544526U - A kind of force aid system for braking and automobile - Google Patents
A kind of force aid system for braking and automobile Download PDFInfo
- Publication number
- CN206544526U CN206544526U CN201720197036.2U CN201720197036U CN206544526U CN 206544526 U CN206544526 U CN 206544526U CN 201720197036 U CN201720197036 U CN 201720197036U CN 206544526 U CN206544526 U CN 206544526U
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- braking
- aid system
- valve rod
- brake
- force aid
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Abstract
The utility model is related to automobile brake technical field, more particularly to a kind of force aid system for braking and automobile.Force aid system for braking includes：Brake pedal, ECU, and the brake boost mechanism being connected with brake pedal；The force aid system for braking includes valve rod, valve lever bushing, driver element, master cylinder etc..Wherein, valve lever bushing includes the hollow hole that one end has opening, and the valve rod is plugged in hollow hole.Because there is gap in the head of valve rod and the bottom of hollow hole, when valve rod is not contacted with the bottom of hollow hole, under the control of entire car controller, control vehicle motor provides braking moment and carries out energy regenerating, brake force is provided using or without using force aid system for braking according to the brake force specifically to be reached in this energy recovery process, with higher Brake energy recovery efficiency.
Description
Technical field
The utility model is related to automobile brake technical field, more particularly to a kind of force aid system for braking and automobile.
Background technology
As country advocates environmental protection, energy-saving and emission-reduction energetically, it is inevitable that new-energy automobile has become future automobile industry
Development trend.
However, no matter for hybrid vehicle or pure electric vehicle, Brake energy recovery is all one and weighed very much
The function of wanting.It can produce braking moment by the motor of new-energy automobile, and the motor is producing braking moment
Electric energy can be produced simultaneously and is charged for the battery of automobile, so as to increase the continual mileage of automobile.
But, most of new-energy automobile does not all realize Brake energy recovery farthest in the market,
It is not Brake energy recovery truly.Its principle is, only when the braking intention of driver is less than 0.1g, big electricity
Machine output is less than the braking moment of 0.05g braking decelerations, while driver's foot pedal still produces 0.1g braking moment,
Namely motor braking torque is superimposed the braking moment produced with conventional friction torque.
This mode has three significant drawbacks：
Really it is recycled 1. the heat energy that friction catch is produced does not have, but the braking moment produced by superimposed motor
To realize energy regenerating；
2. destroying the real braking intention of driver, script driver needs 0.1g deceleration, as a result friction catch
The deceleration for generating 0.15g is superimposed with motor braking, makes the pedal sense of driver excessively poor.
3. the Brake energy recovery efficiency produced in this way is very low, less than 1%.
Utility model content
The purpose of this utility model is to propose a kind of force aid system for braking, can solve the problem that there is Brake Energy in the prior art
Measure the problem of organic efficiency is low.
Of the present utility model to be to propose a kind of automobile in a purpose, it uses brake boost system as described above
System.
For up to this purpose, the utility model uses following technical scheme：
A kind of force aid system for braking, it includes：Brake pedal, ECU, and the braking being connected with brake pedal are helped
Force mechanisms；
Pedal gear in the brake boost mechanism includes valve rod and valve lever bushing, wherein, valve lever bushing includes
One end has the hollow hole of opening, and the valve rod is plugged in hollow hole, and when force aid system for braking is in normal condition, valve
There is gap in the head of bar and the bottom of hollow hole；
Brake pedal is connected with the afterbody of adjustment fork, and is provided with displacement detector at the brake pedal, works as braking
Force aid system be in on-position when, when valve rod brake pedal and adjustment fork drive under motion and valve rod head also not with
During the bottom contact of hollow hole, displacement detector produces detection signal, now, and ECU will detect that signal is sent to vehicle
Controller, vehicle control unit controls vehicle motor provides braking moment and carries out energy regenerating；
If the brake force that vehicle motor is provided is unsatisfactory for braking requirement, the head of valve rod and the bottom of hollow hole
Distance is gradually shortened, and ECU provides extra power-assisted according to detection signal control force aid system for braking；
When the head of valve rod is contacted with the bottom of hollow hole, valve rod and rack and vehicle motor are made jointly
It is dynamic.
As a kind of preferred scheme of above-mentioned force aid system for braking, the pedal gear also includes adjustment fork, locking
Nut, ball cup, volute spring and spring base；
Wherein, the bulb of valve rod afterbody is arranged in the bulb shell of ball cup, and adjustment fork is screwed in the screw thread of ball cup,
And fastened by locking nut, valve rod is connected by ball cup, adjustment fork with brake pedal；
Volute spring one end load pedal gear where housing groove in, the other end be inserted on ball cup and by
Spring base pretension.
It is used as a kind of preferred scheme of above-mentioned force aid system for braking, in addition to power-assisted unit and power-assisted transmission apparatus, power-assisted
Unit drives the motion of valve lever bushing by power-assisted transmission apparatus, final to promote master cylinder to realize brake.
As a kind of preferred scheme of above-mentioned force aid system for braking, the power-assisted unit include power-assisted unit housings, motor,
Worm gear, worm screw, shaft joint, bearing and gear；
Motor is connected by shaft joint with worm screw, and worm gear is pressed on gear, in gear-worm gear assembly press-in housing bearing, shell
Body bearing is locked by circlip.
It is used as a kind of preferred scheme of above-mentioned force aid system for braking, the shaft joint pawl disk press-in motor of the shaft joint
Axle, another coupling claw disk press-in worm screw, and coupling claw disk and bearing are pushed down by lock-screw screw-in worm screw.
As a kind of preferred scheme of above-mentioned force aid system for braking, the worm screw two ends are pressed with bearing, away from motor one
Hold and O-ring is housed on worm shaft, bearing is compressed by locking nut.
As a kind of preferred scheme of above-mentioned force aid system for braking, the power-assisted transmission apparatus include rack, rack bush,
Reaction plate, push-rod assembly, spring base, preloading spring and briquetting；
Wherein, push-rod assembly includes ram seat, push rod, pad and push rod cup, and ram seat and push rod are connected by bulb, pushed away
Head is pressed into push rod, and adjust pad is accompanied between push rod cup and push rod；
Rack bush has been radially arranged boss, and rack is located in rack bush and is caught in the radial groove of rack, valve
Bushing is located in the hollow hole of rack, and the side of valve lever bushing is equipped with valve rod, and opposite side, which has in groove, groove, to be set
There is reaction plate, preloading spring is together crimped onto on reaction plate together with spring base and push-rod assembly；
Preloading spring one end is enclosed on master cylinder, and the other end is enclosed on spring base；
Briquetting is pushed down and spring is housed in the back of tooth of rack, block slots, and has adjusting nut to adjust preloading spring pretightning force.
A kind of automobile, it includes force aid system for braking as described above.
The beneficial effects of the utility model are：Because ECU is believed according to the displacement of brake pedal in the utility model
Number control motor, force aid system for braking are braked, under the control of entire car controller, the motor offer of control vehicle
Braking moment simultaneously carries out energy regenerating, is used or without using system according to the brake force specifically to be reached in this energy recovery process
Dynamic force aid system provides brake force, with higher Brake energy recovery efficiency.
Brief description of the drawings
Fig. 1 be the utility model embodiment provide force aid system for braking power-assisted unit, power-assisted transmission apparatus and
The structural representation that pedal gear three coordinates；
Fig. 2 is the structural representation for the force aid system for braking power-assisted unit that the utility model embodiment is provided；
Fig. 3 is the structural representation that the power-assisted unit and power-assisted transferring structure that the utility model embodiment is provided coordinate
Figure.
Wherein：
1：Valve rod；2：Valve lever bushing；3：Adjustment fork；4：Locking nut；5：Volute spring；6：Spring base；7：Master cylinder；
8：Motor；9：Turbine；10：Worm screw；11：Shaft joint；12：Gear；13：Rack；14：Rack bush；15：Reaction plate；16：Push rod
Component；17：Preloading spring； 18：Briquetting；19：Ball cup 20：Locking nut；21：Spring base；22：Ram seat；23：Push rod；
24：Pad；25：Push rod cup；26：Spring；27：Adjusting nut.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
As Figure 1-3, present embodiments provide for a kind of force aid system for braking, it includes brake pedal, ECU
(ECU of force aid system for braking, the ECU hereinafter mentioned also is the ECU of force aid system for braking), and
The brake boost mechanism being connected with brake pedal.
Pedal gear in brake boost mechanism includes valve rod 1 and valve lever bushing 2, wherein, valve lever bushing 2 includes
One end has the hollow hole of opening, and valve rod 1 is plugged in hollow hole, and (is driven when force aid system for braking is in normal condition
When the person of sailing does not trample brake pedal), there is gap in the head of valve rod 1 and the bottom of hollow hole.
Brake pedal is connected with the afterbody of adjustment fork 3, and displacement detector is provided with brake pedal, works as brakes
During in on-position (during driver's brake pedal), valve rod 1 brake pedal and adjustment fork drive under motion and
When the head of valve rod 1 is not contacted also with the bottom of hollow hole, displacement detector produces detection signal, now, and ECU will
Detection signal is sent to entire car controller, and vehicle control unit controls vehicle motor provides braking moment and carries out energy and returns
Receive.
If the brake force that vehicle motor is provided is unsatisfactory for braking requirement, the head of valve rod 1 and the bottom of hollow hole
Portion's distance is gradually shortened, and ECU provides extra power-assisted according to detection signal control force aid system for braking, when the head of valve rod 1
When portion is contacted with the bottom of hollow hole, valve rod 1 and rack 13 and vehicle motor are braked jointly.
In the present embodiment, because the head of valve rod 1 and the bottom of hollow hole have gap, in the control of entire car controller
Under system, control vehicle motor, which provides braking moment and carries out basis in energy regenerating, this energy recovery process, will specifically reach
The brake force arrived provides brake force using or without using force aid system for braking, with higher Brake energy recovery efficiency.
Pedal gear also includes adjustment fork 3, locking nut 4, ball cup 19, volute spring 5 and spring base 6, wherein,
The bulb of the afterbody of valve rod 1 is arranged in the bulb shell of ball cup, and adjustment fork 3 is screwed in the screw thread of ball cup, and passes through locking
Nut 4 is fastened, and valve rod 1 is connected by ball cup, adjustment fork 3 with brake pedal, and the one end of volute spring 5 loads pedal gear
In the groove of the housing at place, the other end is inserted on ball cup and by the pretension of spring base 6.
Force aid system for braking also includes power-assisted unit and power-assisted transmission apparatus, and power-assisted unit is driven by power-assisted transmission apparatus
The motion of valve lever bushing, it is final to promote master cylinder 7 to realize brake.
Power-assisted unit includes power-assisted unit housings, motor 8, worm gear 9, worm screw 10, shaft joint 11, bearing and gear 12, its
In, motor 8 is connected by elastic shaft joint 11 with worm screw 10, and worm gear 10 is pressed on gear 12, gear-worm gear assembly press-in housing
In bearing, housing bearing is locked by circlip.
The shaft joint pawl disk press-in motor shaft of above-mentioned elastic shaft joint 11, another coupling claw disk press-in worm screw
10, and coupling claw disk and bearing are pushed down by lock-screw screw-in worm screw.
The two ends of worm screw 10 are pressed with bearing, and O-ring is housed on away from one end worm shaft of motor 8, pressed by locking nut 20
Mandrel is held.
Power-assisted transmission apparatus includes rack 13, rack bush 14, reaction plate 15, push-rod assembly 16, spring base, preloading spring
17 and briquetting 18.Wherein, push-rod assembly 16 includes push rod by ram seat 22, push rod 23, pad 24 and push rod cup 25, ram seat 22
Connected with push rod 23 by bulb, the press-in push rod 23 of push rod cup 25 accompanies adjust pad 24 between push rod cup 25 and push rod 23.
Rack bush 14 has been radially arranged boss, and rack 13 is located in rack bush 14 and is caught in the radial groove of rack 13, valve
Bushing 2 is located in the hollow hole of rack 13, and the side of valve lever bushing 2 is equipped with valve rod 1, and opposite side has groove, groove
Reaction plate 15 is inside provided with, preloading spring 17 is together crimped onto on reaction plate 15 together with spring base 21 and push-rod assembly 16.Pretension
The one end of spring 17 is enclosed on master cylinder 7, and the other end is enclosed on spring base 21.Briquetting 18 pushes down the back of tooth of rack 13, briquetting 18
Spring 26 is housed in groove, and has adjusting nut 27 to adjust initial tension of spring.
In order to above-mentioned force aid system for braking, be further detailed, present embodiment additionally provides above-mentioned braking and helped
The specific course of work of Force system, after driver's brake pedal, due to there is gap between valve rod 1 and valve lever bushing 2,
There is idle stroke between the two, valve rod 1 will not promote valve lever bushing 2, now, ECU control motor provides braking
Torque simultaneously carries out energy regenerating, if the brake force that vehicle motor is provided is when being unsatisfactory for braking requirement, the head of valve rod 1 with
The distance from bottom of hollow hole is gradually shortened, and ECU provides extra power-assisted according to detection signal control force aid system for braking.
The braking procedure of mechanical braking is：Motor 8 drives worm screw 10 by shaft coupling 11, and the driving worm gear 9 of worm screw 10 and gear 12 are together
Rotate.Power-assisted unit gear 12 is moved with carry-over bar 13 during work, and rack 13 is by promoting valve lever bushing 2 to promote reaction plate successively
15th, push-rod assembly 16, finally realize brake by the components drive master cylinder 7 of push rod 16.
In the present embodiment, a kind of method for recovering brake energy of brakes is additionally provided, it is characterised in that use
Such as above brakes, specifically including procedure below：
When driver's brake pedal, displacement detector collection brake pedal displacement signal, and pass to automatically controlled
Unit, then this signal passed to entire car controller by ECU, vice versa for above-mentioned signal transmission, that is to say, that signal is passed
It is two-way to pass；
The braking deceleration that entire car controller reaches according to needed for the calculating of the displacement signal of brake pedal judges driver；
If braking deceleration is no more than M, vehicle control unit controls vehicle motor is braked and carries out energy regenerating；
If braking deceleration is more than M, entire car controller continues to control the braking of vehicle motor, while asking braking to help
Force system provides the brake force more than M parts.
M value is 0.3g.
If braking deceleration is no more than M, ECU signals to motor 8, and worm screw 10, snail are driven by shaft coupling 11
Bar 10 drives worm gear 9 and gear 12 to rotate together.Power-assisted unit gear 12 is moved with carry-over bar 13 during work, and rack 13 is by pushing away
Ovable valve stem bushing 2 promotes reaction plate 15, push-rod assembly 16, finally promotes the first of master cylinder 7 to live by push-rod assembly 16 successively
Plug, master cylinder first piston promotes brake fluid to produce hydraulic pressure output, so as to realize braking.
It should be noted that：When braking intention is no more than M, due to there is the presence of idle stroke, stepped on when brake pedal is stepped on
Plate power can't power transmission to master cylinder 7, such hydraulic system would not produce brake force, and brake force is carried by motor completely
For because ability is not wasted on friction plate, this structure can significantly lift the efficiency of energy regenerating.
A kind of automobile is additionally provided in the present embodiment, and it includes brakes as described above.
Technical principle of the present utility model is described above in association with specific embodiment.These descriptions are intended merely to explain this reality
With new principle, and the limitation to the utility model protection domain can not be construed in any way.Based on explanation herein,
Those skilled in the art, which would not require any inventive effort, can associate other embodiments of the present utility model,
These modes are fallen within protection domain of the present utility model.
Claims (8)
1. a kind of force aid system for braking, it is characterised in that including：Brake pedal, ECU, and be connected with brake pedal
Brake boost mechanism；
Pedal gear in the brake boost mechanism includes valve rod (1) and valve lever bushing (2), wherein, valve lever bushing (2)
There is the hollow hole of opening including one end, the valve rod (1) is plugged in hollow hole, and normal shape is in force aid system for braking
During state, there is gap in the head of valve rod (1) and the bottom of hollow hole；
Brake pedal is connected with the afterbody of adjustment fork (3), and is provided with displacement detector at the brake pedal, when braking is helped
When Force system is in on-position, when the head of motion and valve rod (1) under drive of the valve rod (1) in brake pedal and adjustment fork (3)
When portion is not contacted also with the bottom of hollow hole, displacement detector produces detection signal, now, and ECU will detect signal hair
Entire car controller is given, vehicle control unit controls vehicle motor provides braking moment and carries out energy regenerating；
If the brake force that vehicle motor is provided is unsatisfactory for braking requirement, the head of valve rod (1) and the bottom of hollow hole
Distance is gradually shortened, and ECU provides extra power-assisted according to detection signal control force aid system for braking；
When the head of valve rod (1) is contacted with the bottom of hollow hole, valve rod (1) and rack (13) and vehicle motor are common
Braked.
2. force aid system for braking according to claim 1, it is characterised in that the pedal gear also includes adjustment fork
(3), locking nut (4), ball cup (19), volute spring (5) and spring base (6)；
Wherein, the bulb of valve rod (1) afterbody is arranged in the bulb shell of ball cup, and adjustment fork (3) screws in the screw thread of ball cup
In, and fastened by locking nut, valve rod (1) is connected by ball cup, adjustment fork (3) with brake pedal；
Volute spring (5) one end load pedal gear where housing groove in, the other end be inserted on ball cup and by
Spring base pretension.
3. force aid system for braking according to claim 2, it is characterised in that also including power-assisted unit and servodrive machine
Structure, power-assisted unit drives the motion of valve lever bushing by power-assisted transmission apparatus, final to promote master cylinder to realize brake.
4. force aid system for braking according to claim 3, it is characterised in that the power-assisted unit includes power-assisted cell enclosure
Body, motor (8), worm gear (9), worm screw (10), shaft joint (11), bearing and gear (12)；
Motor (8) is connected by shaft joint (11) with worm screw (10), and worm gear (9) is pressed on gear (12), gear-worm gear assembly pressure
Enter in housing bearing, housing bearing is locked by circlip.
5. force aid system for braking according to claim 4, it is characterised in that a shaft joint pawl of the shaft joint (11)
Disk is pressed into motor shaft, another coupling claw disk press-in worm screw, and pushes down coupling claw by lock-screw screw-in worm screw (10)
Disk and bearing.
6. force aid system for braking according to claim 4, it is characterised in that worm screw (10) two ends are pressed with bearing,
Away from O-ring is equipped with the worm shaft of motor one end, bearing is compressed by locking nut (20).
7. force aid system for braking according to claim 4, it is characterised in that the power-assisted transmission apparatus includes rack
(13), rack bush (14), reaction plate (15), push-rod assembly (16), spring base (21), preloading spring (17) and briquetting (18)；
Wherein, push-rod assembly (16) includes ram seat (22), push rod (23), pad (24) and push rod cup (25), ram seat (22)
Connected with push rod (23) by bulb, push rod cup (25) press-in push rod (23) accompanies tune between push rod cup (25) and push rod (23)
Whole pad (24)；
Rack bush (14) has been radially arranged boss, and rack (13) is located in rack bush (14) and is caught in the footpath of rack (13)
Into groove, valve lever bushing (2) is located in the hollow hole of rack (13), and the side of valve lever bushing (2) is equipped with valve rod (1),
Opposite side, which has, is provided with reaction plate (15) in groove, groove, preloading spring (17) is together with spring base (21) and push-rod assembly
(16) together it is crimped onto on reaction plate (15)；
Preloading spring (17) one end is enclosed on master cylinder (7), and the other end is enclosed on spring base (21)；
Briquetting (18) is pushed down and spring (26) is housed in the back of tooth of rack (13), block slots, and has adjusting nut (27) to adjust pretension
Spring (17) pretightning force.
8. a kind of automobile, it is characterised in that including the force aid system for braking as described in claim 1-7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720197036.2U CN206544526U (en) | 2017-03-02 | 2017-03-02 | A kind of force aid system for braking and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720197036.2U CN206544526U (en) | 2017-03-02 | 2017-03-02 | A kind of force aid system for braking and automobile |
Publications (1)
| Publication Number | Publication Date |
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| CN206544526U true CN206544526U (en) | 2017-10-10 |
Family
ID=59994344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720197036.2U Active CN206544526U (en) | 2017-03-02 | 2017-03-02 | A kind of force aid system for braking and automobile |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106915342A (en) * | 2017-03-02 | 2017-07-04 | 上海拿森汽车电子有限公司 | A kind of force aid system for braking, the method for brake system energy regenerating and automobile |
| CN107672577A (en) * | 2017-11-01 | 2018-02-09 | 拿森汽车科技南通有限公司 | A kind of Electric brake booster for automobile |
| CN110466486A (en) * | 2019-08-30 | 2019-11-19 | 爱驰汽车有限公司 | Service brake control method, system, equipment and storage medium |
| CN110481521A (en) * | 2019-09-10 | 2019-11-22 | 上海拿森汽车电子有限公司 | A kind of the rack gear control method for movement and device of electric brake system |
| CN113071467A (en) * | 2021-05-12 | 2021-07-06 | 浙江大学台州研究院 | Decoupling type electric power-assisted brake device |
-
2017
- 2017-03-02 CN CN201720197036.2U patent/CN206544526U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106915342A (en) * | 2017-03-02 | 2017-07-04 | 上海拿森汽车电子有限公司 | A kind of force aid system for braking, the method for brake system energy regenerating and automobile |
| CN106915342B (en) * | 2017-03-02 | 2024-02-06 | 上海拿森汽车电子有限公司 | Brake power assisting system, brake system braking energy recovery method and automobile |
| CN107672577A (en) * | 2017-11-01 | 2018-02-09 | 拿森汽车科技南通有限公司 | A kind of Electric brake booster for automobile |
| CN107672577B (en) * | 2017-11-01 | 2023-12-29 | 上海拿森汽车电子有限公司 | Electric brake booster for automobile |
| CN110466486A (en) * | 2019-08-30 | 2019-11-19 | 爱驰汽车有限公司 | Service brake control method, system, equipment and storage medium |
| CN110481521A (en) * | 2019-09-10 | 2019-11-22 | 上海拿森汽车电子有限公司 | A kind of the rack gear control method for movement and device of electric brake system |
| CN110481521B (en) * | 2019-09-10 | 2021-08-06 | 上海拿森汽车电子有限公司 | Rack movement control method and device of electric brake system |
| CN113071467A (en) * | 2021-05-12 | 2021-07-06 | 浙江大学台州研究院 | Decoupling type electric power-assisted brake device |
| CN113071467B (en) * | 2021-05-12 | 2024-04-12 | 浙江大学台州研究院 | Decoupling type electric power-assisted braking device |
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