CN106314409B - Electrodynamic braking power-assisted coupling device - Google Patents
Electrodynamic braking power-assisted coupling device Download PDFInfo
- Publication number
- CN106314409B CN106314409B CN201610675525.4A CN201610675525A CN106314409B CN 106314409 B CN106314409 B CN 106314409B CN 201610675525 A CN201610675525 A CN 201610675525A CN 106314409 B CN106314409 B CN 106314409B
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- Prior art keywords
- sleeve
- assisted
- power
- coupling device
- electrodynamic braking
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Classifications
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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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/746—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive and mechanical transmission of the braking action
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/24—Electrodynamic brake systems for vehicles in general with additional mechanical or electromagnetic braking
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Braking Systems And Boosters (AREA)
- Braking Elements And Transmission Devices (AREA)
Abstract
The present invention provides a kind of electrodynamic braking power-assisted coupling devices comprising: pedal push rod；Screw rod and power-assisted sleeve, power-assisted sleeve are embedded in screw rod；Sleeve is connected, one end of pedal push rod is connected with the one end for connecting sleeve, and the other end for connecting sleeve is embedded in one end of power-assisted sleeve；One end of adjusting block with connect sleeve connection, the other end is threaded through in power-assisted sleeve, and one first elastomeric element is provided on adjusting block, so that the first elastomeric element is fastened between connection sleeve and power-assisted sleeve, to drive adjusting block mobile by pushing pedal push rod；The other end of power-assisted sleeve is provided with reaction tray and master cylinder mandril, and reaction tray is connect with master cylinder mandril, and master cylinder mandril is made to be connected to shell by the second elastomeric element.The present invention realizes brake boost by ball-screw, has friction loss small, the high advantage of transmission efficiency, while its kinematic accuracy is high, is able to achieve accurate Fine Feed, reduces the difficulty of motor control.
Description
Technical field
The present invention relates to field of automobile brake, in particular to a kind of electrodynamic braking power-assisted coupling device.
Background technique
With the development of electric car and intelligent automobile, braking system is put forward new requirements, such as can independently be generated
The brake force (active brake) needed, can be realized braking energy recovering function, and can match chassis active safety system
Function, for example, anti-blocking brake system (ABS, Anti-lock Braking System), Anti-slip regulation control (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 is using vacuum booster and master cylinder, wheel cylinder system.Wherein, vacuum booster needs
Vacuum degree is extracted by engine.However, electric car eliminates traditional engine structure, using motor as driving
Device, this vacuum booster for allowing for conventional hydraulic braking lose function.Simultaneously as electric car regenerative braking capability
Demand, it is desirable that in Brake energy recovery control process, use the anti-regenerative braking force for dragging generation of motor as far as possible, and do not wish simultaneously
Driver is hoped to actuate wheel cylinder by pedal and clamp the friction brake force participation braking process that brake disc generates, this just needs to make
Dynamic system is able to achieve the decoupling of friction brake force and regenerative braking force.
In recent years, many electric cars replace the vacuum degree of engine extraction vacuum booster using vacuum pump, to guarantee
The assist function of braking system.However, vacuum pump scheme is driving to guarantee that vacuum degree needs the work of motor stage
Under the not braking operating condition of member, motor is also required to work.Moreover, the system is in continuous braking, brake pressure can gradually decay, can
Security risk can be brought.The system cannot achieve that assist rate is adjustable and the functions such as active brake, can not be with other controls of chassis
The system integration processed, there is certain limitations.Meanwhile the volume of vacuum pump and air accumulator is larger, is unfavorable for saving space.
Current electric booster braking product, such as E-ACT series of products made in Japan, use core motor as power
Source actuates master cylinder and generates brake force using ball screw as transmission mechanism.Such scheme, due to the ruler of core motor
Very little larger, so that the volume and quality of system are all very huge, and its structure is complicated, be unfavorable for automobile lightweight and
Energy conservation.Another uses worm and gear and rack-and-pinion as driver such as the ibooster series of products that Bosch is released
The efficiency of structure, such scheme, transmission is lower, higher to the performance requirement of motor, is also unfavorable for the energy conservation of cost savings and automobile.
The braking system that such as patent CN104118416A is proposed, the kind of drive using core motor plus ball-screw are straight
It connects the translation for being converted to lead screw of motor, centre lacks deceleration torque increase mechanism, to increase the need to Motor torque
It asks, leads to the oversized of motor.Whole system does not have return spring, and when power-assisted releases, lead 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 be unable to accurately control.This system
The spherical groove of pedal push rod is too far at the link apart from push rod and pedal, will lead to driver and steps on the power of brake pedal and is sealing
Excessive deflecting force is generated at circle, hinders mechanism kinematic.
Such as system shown in patent CN104709096A, using unilateral gear rack system as movement conversion mechanism, meeting
Certain deflecting force is generated, so that biggish resistance can be generated in the case where current of electric increases, is easy to cause mechanism blockage.
Manpower and motor force are direct-couplings on rack gear, therefore when motor failure, and manpower demand overcomes the anti-towing tension square of motor, are led
Cause backup brake force insufficient.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome in the prior art braking system be easy to cause security risk etc.
Defect provides a kind of electrodynamic braking power-assisted coupling device.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of electrodynamic braking power-assisted coupling device, it is characterized in that, the electrodynamic braking power-assisted coupling device includes: pedal
Push rod；
Screw rod and power-assisted sleeve, the power-assisted sleeve are embedded in the screw rod；
Sleeve is connected, one end connection of one end of the pedal push rod and the connection sleeve is described to connect the another of sleeve
One end is embedded in one end of the power-assisted sleeve；
Adjusting block, one end of the adjusting block and the connection sleeve connection, the other end are threaded through in the power-assisted sleeve,
And one first elastomeric element is provided on the adjusting block, so that first elastomeric element is fastened on the connection sleeve and institute
It states between power-assisted sleeve, to drive the adjusting block mobile by pushing the pedal push rod；
The other end of the power-assisted sleeve is provided with reaction tray and master cylinder mandril, and the reaction tray and the master cylinder mandril connect
It connects, the master cylinder mandril is made to be connected to shell by the second elastomeric element.
Preferably, being connected between the pedal push rod and the connection sleeve using flexural pivot.
Preferably, using threaded connection between the connection sleeve and the adjusting block.
Preferably, the screw rod is rotation ball screw.
Preferably, the outer cover connected nut of the screw rod, ball is connected between the nut and the screw rod.
Preferably, the electrodynamic braking power-assisted coupling device further includes gear wheel, the gear wheel is connected by hot jacket or key
It connects on the nut.
Preferably, first elastomeric element and second elastomeric element use return spring.
Preferably, being provided with sensor on the pedal push rod, the sensor is used to monitor the position of the pedal push rod
It moves.
Preferably, the sensor is stroke sensor or pedal rotary angle transmitter.
Preferably, signal is passed to electronic control unit by the sensor, the electronic control unit passes through the letter
The deflection for number obtaining the reaction tray, to control the rotation of corresponding motor.
The positive effect of the present invention is that:
Electrodynamic braking power-assisted coupling device of the present invention realizes brake boost by ball-screw, has friction loss small, passes
The high advantage of efficiency of movement, while its kinematic accuracy is high, is able to achieve accurate Fine Feed, reduces the difficulty of motor control.Furthermore
Its invertibity and high speed feed also meets the needs of braking system well.
Detailed description of the invention
The above and other feature of the present invention, property and advantage will pass through description with reference to the accompanying drawings and examples
And become apparent, identical appended drawing reference always shows identical feature in the accompanying drawings, in which:
Fig. 1 is the schematic diagram of electrodynamic braking power-assisted coupling device of the present invention.
Specific embodiment
For the above objects, features and advantages of the present invention can be clearer and more comprehensible, below in conjunction with attached drawing to tool of the invention
Body embodiment elaborates.
The embodiment of the present invention is described with detailed reference to attached drawing now.Referring in detail to the preferred embodiment of the present invention, show
Example is shown in the accompanying drawings.In the case of any possible, identical or phase will be indicated using identical label in all the appended drawings
As part.In addition, the present invention is said although term used in the present invention is selected from public term
Some terms mentioned in bright book may be that applicant is judged to carry out selection as his or her, and detailed meanings are retouched this paper's
Illustrate in the relevant portion stated.Furthermore, it is desirable that not only by used actual terms, and be also to through each term institute
The meaning that contains understands the present invention.
Fig. 1 is the schematic diagram of electrodynamic braking power-assisted coupling device of the present invention.
As shown in Figure 1, the invention discloses a kind of electrodynamic braking power-assisted coupling devices comprising pedal push rod 10, screw rod
20, power-assisted sleeve 21, connection sleeve 11 and adjusting block 22.Wherein, power-assisted sleeve 21 is embedded in screw rod 20, by pedal push rod 10
One end connected with the one end for connecting sleeve 11, and the other end for connecting sleeve 11 is embedded in one end of power-assisted sleeve 21.It adjusts
One end of locking nub 22 is connected with sleeve 11 is connect, and the other end is threaded through in power-assisted sleeve 21, and is provided on adjusting block 22
One first elastomeric element 23, so that the first elastomeric element 23 is fastened between connection sleeve 11 and power-assisted sleeve 21, by pushing away
Pedal push rod 10 is moved to drive adjusting block 22 mobile.The other end of power-assisted sleeve 21 is provided with reaction tray 30 and master cylinder mandril
40, reaction tray 30 here is connect with master cylinder mandril 40, and master cylinder mandril 40 is made to be connected to shell 50 by the second elastomeric element 41.
Preferably, it is connected between pedal push rod 10 and connection sleeve 11 using flexural pivot.Connect sleeve 11 and adjusting block 22 it
Between using be threadedly coupled.Sleeve 11 is connected in the present invention with adjusting block 22 through being threadedly coupled, and can pass through change adjusting block in this way
22 precessions connect the depth of sleeve 11 to change hollow heavy size.Hollow heavy size affects power-assisted and jumps increment, different
Power-assisted, which jumps increment, can realize different driving modes.
Further, screw rod 20 preferably rotates ball screw.In the outer cover connected nut 60 of screw rod 20, nut 60 and silk
It is connected between bar 20 using ball.Hot jacket or key connection have gear wheel 70 on nut 60.When gear wheel 70 rotates, pass through limit
The rotation ball-screw of throwing bar 20 can be by the translation for being converted into screw rod 20 of nut 60.The present invention passes through ball-screw
It realizes brake boost, has friction loss small, the high advantage of transmission efficiency, while its kinematic accuracy is high, is able to achieve accurate micro-
Feeding, reduces the difficulty of motor control.Furthermore the invertibity of ball-screw and high speed feed also very well satisfy braking
The needs of system.
Preferably, herein the first elastomeric element 23 and the second elastomeric element 41 uses return spring.Present invention employs
The return form of dual spring, wherein the first elastomeric element 23 gives 10 return of pedal push rod, the second elastomeric element 41 gives ball-screw
Return.In this way when power assisting device fails, manpower only needs to overcome the power of the first elastomeric element 23 to realize braking, makes more to step on
Plate power acts on master cylinder mandril 40.
Further, it is provided with sensor 80 on pedal push rod 10, for monitoring the displacement of pedal push rod 10.Herein
Sensor 80 can be preferably stroke sensor or pedal rotary angle transmitter, and stroke sensor can directly obtain pedal push rod 10
Displacement, pedal rotary angle transmitter can obtain the displacement of pedal push rod 10 indirectly.Passing through sensor 80 in use process will
Signal passes to electronic control unit (not shown)), the electronic control unit obtains reaction tray 30 by the signal
Deflection, to control the rotation of corresponding motor.The output shaft of motor is connect with pinion gear (not shown), and pinion gear with
Gear wheel 70 is meshed, and can realize the effect of deceleration torque increase in this way.
It is described according to above structure, when driver steps on pedal, pedal push rod 10 moves right, so that 22 grams of adjusting block
Its hollow heavy realization between reaction tray 30 is taken to contact.When pedal push rod 10 continues to move right, reaction tray 30 can be generated
Deformation, deflection can be obtained by sensor 80.
Power-assisted sleeve 21 is driven to move right when screw rod 20 is translatable to the right, such pedal force is being reacted with power-assisted collective effect
On disk 30, reaction tray 30 transmits the force to master cylinder mandril 40 to make master cylinder (not shown) generate brake force, realizes
Electrodynamic braking power-assisted.
When brake booster failure, pedal push rod 10 is acted directly on master cylinder mandril 40 by reaction tray 30 and is realized
Braking.When needing to realize active brake, motor can work independently, and generate power-assisted by ball-screw and act on reaction tray
On 30, then realizes and brake via master cylinder mandril 40.
In conclusion electrodynamic braking power-assisted coupling mechanism structure of the present invention is simple, may be implemented to be power, power-assisted jump increment
And the adjusting of assist rate.It realizes brake boost by ball-screw, has friction loss small, the high advantage of transmission efficiency,
Its kinematic accuracy is high simultaneously, is able to achieve accurate Fine Feed, reduces the difficulty of motor control.Furthermore its invertibity and high speed into
Also meet the needs of braking system well to property.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
Under the premise of from the principle and substance of the present invention, various changes or modifications can be made to these embodiments, but these are changed
Protection scope of the present invention is each fallen with modification.
Claims (10)
1. a kind of electrodynamic braking power-assisted coupling device, which is characterized in that the electrodynamic braking power-assisted coupling device includes:
Pedal push rod；
Screw rod and power-assisted sleeve, the power-assisted sleeve are embedded in the screw rod；
Connect sleeve, one end connection of one end of the pedal push rod and the connection sleeve, the other end of the connection sleeve
It is embedded in one end of the power-assisted sleeve；
Adjusting block, one end of the adjusting block and the connection sleeve connection, the other end is threaded through in the power-assisted sleeve, and institute
It states and is provided with one first elastomeric element on adjusting block, so that first elastomeric element is fastened on the connection sleeve and described helps
Between power sleeve, to drive the adjusting block mobile by pushing the pedal push rod；
The other end of the power-assisted sleeve is provided with reaction tray and master cylinder mandril, and the reaction tray is connect with the master cylinder mandril,
The master cylinder mandril is set to be connected to shell by the second elastomeric element.
2. electrodynamic braking power-assisted coupling device as described in claim 1, which is characterized in that the pedal push rod and the connection
It is connected between sleeve using flexural pivot.
3. electrodynamic braking power-assisted coupling device as described in claim 1, which is characterized in that the connection sleeve and the adjusting
Using threaded connection between block.
4. electrodynamic braking power-assisted coupling device as described in claim 1, which is characterized in that the screw rod is rotation ball wire
Bar.
5. electrodynamic braking power-assisted coupling device as claimed in claim 4, which is characterized in that the external of the screw rod is socketed spiral shell
Mother, ball connects between the nut and the screw rod.
6. electrodynamic braking power-assisted coupling device as claimed in claim 5, which is characterized in that the electrodynamic braking power-assisted coupling dress
Setting further includes gear wheel, and the gear wheel is by hot jacket or key connection on the nut.
7. electrodynamic braking power-assisted coupling device as described in claim 1, which is characterized in that first elastomeric element and described
Second elastomeric element uses return spring.
8. electrodynamic braking power-assisted coupling device as described in claim 1, which is characterized in that be provided with biography on the pedal push rod
Sensor, the sensor are used to monitor the displacement of the pedal push rod.
9. electrodynamic braking power-assisted coupling device as claimed in claim 8, which is characterized in that the sensor is stroke sensor
Or pedal rotary angle transmitter.
10. electrodynamic braking power-assisted coupling device as claimed in claim 8, which is characterized in that the sensor transmits signal
Electron control unit, the electronic control unit obtain the deflection of the reaction tray by the signal, to control phase
Answer the rotation of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610675525.4A CN106314409B (en) | 2016-08-16 | 2016-08-16 | Electrodynamic braking power-assisted coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610675525.4A CN106314409B (en) | 2016-08-16 | 2016-08-16 | Electrodynamic braking power-assisted coupling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106314409A CN106314409A (en) | 2017-01-11 |
| CN106314409B true CN106314409B (en) | 2018-12-11 |
Family
ID=57740017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610675525.4A Active CN106314409B (en) | 2016-08-16 | 2016-08-16 | Electrodynamic braking power-assisted coupling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106314409B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740792B (en) * | 2017-02-07 | 2019-08-16 | 上汽通用汽车有限公司 | A kind of Electric brake booster |
| 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 |
| CN109941250A (en) * | 2017-12-20 | 2019-06-28 | 任立鹏 | A kind of electrodynamic braking power-assisted coupling device |
| DE102019205972A1 (en) * | 2019-04-25 | 2020-10-29 | Robert Bosch Gmbh | Electromechanical brake pressure generator for a hydraulic brake system of a vehicle and vehicle comprising an electromechanical brake pressure generator |
| CN113147713B (en) * | 2021-05-12 | 2022-03-08 | 湘潭大学 | Hydraulic power-assisted brake device for assisting electronic power-assisted brake |
| CN113173150B (en) * | 2021-06-08 | 2022-03-11 | 湘潭大学 | New energy automobile brake booster device and brake feeling consistency optimization method |
| CN115071659A (en) * | 2022-07-06 | 2022-09-20 | 浙江亚太机电股份有限公司 | Internal transmission mechanism for electronic booster |
Citations (4)
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|---|---|---|---|---|
| CN102556035A (en) * | 2010-12-09 | 2012-07-11 | 日立汽车系统株式会社 | Electric motor-driven booster |
| CN104118416A (en) * | 2014-08-06 | 2014-10-29 | 邓伟文 | Electro-hydraulic combined braking system with electric power function and applicable to regenerative braking automobile |
| CN104760586A (en) * | 2015-03-31 | 2015-07-08 | 同济大学 | Double-motor driving type electronic hydraulic brake system capable of actively simulating pedal feeling |
| CN205971272U (en) * | 2016-08-16 | 2017-02-22 | 上海汇众汽车制造有限公司 | Electronic brake assist coupling device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012081799A (en) * | 2010-10-07 | 2012-04-26 | Hitachi Automotive Systems Ltd | Electric booster |
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2016
- 2016-08-16 CN CN201610675525.4A patent/CN106314409B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556035A (en) * | 2010-12-09 | 2012-07-11 | 日立汽车系统株式会社 | Electric motor-driven booster |
| CN104118416A (en) * | 2014-08-06 | 2014-10-29 | 邓伟文 | Electro-hydraulic combined braking system with electric power function and applicable to regenerative braking automobile |
| CN104760586A (en) * | 2015-03-31 | 2015-07-08 | 同济大学 | Double-motor driving type electronic hydraulic brake system capable of actively simulating pedal feeling |
| CN205971272U (en) * | 2016-08-16 | 2017-02-22 | 上海汇众汽车制造有限公司 | Electronic brake assist coupling device |
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| CN106314409A (en) | 2017-01-11 |
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