CN106904160A - A kind of vehicle brake fluid pressure power assisting device and its boosting method - Google Patents
A kind of vehicle brake fluid pressure power assisting device and its boosting method Download PDFInfo
- Publication number
- CN106904160A CN106904160A CN201710237441.7A CN201710237441A CN106904160A CN 106904160 A CN106904160 A CN 106904160A CN 201710237441 A CN201710237441 A CN 201710237441A CN 106904160 A CN106904160 A CN 106904160A
- Authority
- CN
- China
- Prior art keywords
- motor
- brake fluid
- master cylinder
- assisting device
- fluid pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 5
- 238000001125 extrusion Methods 0.000 claims description 3
- 230000003137 locomotive effect Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- 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
- B60T13/745—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 acting on a hydraulic system, e.g. a master cylinder
-
- 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
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/82—Brake-by-Wire, EHB
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
- Regulating Braking Force (AREA)
Abstract
The present invention relates to brake system of car, and in particular to a kind of vehicle brake fluid pressure power assisting device；Including the outlet of master cylinder, motor, screw rod, piston pressure sensor, normally open solenoid valve, oil can and master cylinder；Described normally open solenoid valve is arranged on the pipeline of oil can and master cylinder, and described pressure sensor is arranged on the pipeline between normally open solenoid valve and master cylinder；Described motor is connected by screw rod with piston；The invention simplifies brake-by-wire supercharging device, reduces cost；And non-self-lock-ing screw rod is added using motor, the response time is fast；Mutually being checked using current of electric and pressure carries out closed-loop control, improves safety coefficient.
Description
Technical field
The present invention relates to brake system of car, and in particular to a kind of vehicle brake fluid pressure power assisting device and its supercharging side
Method.
Background technology
The line control system of current EHB types typically uses plunger displacement pump as pressure source, but plunger displacement pump is in pressurization
In the presence of certain pressure oscillation, noise of motor is big during work, and the plunger life-span is also shorter.
Plunger displacement pump adds high pressure accumulator as pressure source, relatively costly, and complex structure is, it is necessary to multiple valve system collaboration works
Make, and there is certain potential safety hazard in high pressure accumulator.
The content of the invention
The object of the invention includes following content：
1st, brake-by-wire supercharging device, reduces cost are simplified.
2nd, eliminate plunger and build the pressure oscillation problem that pressure is present, improve brake comfort.
3rd, system response time is improved, shortens braking distance.
4th, current of electric and pressure are mutually checked, and improve system safety coefficient.
The present invention includes following content：A kind of vehicle brake fluid pressure power assisting device, described vehicle brake fluid pressure power-assisted dress
Put including the outlet of master cylinder, motor, screw rod, piston pressure sensor, normally open solenoid valve, oil can and master cylinder；
Described normally open solenoid valve is arranged on the pipeline of oil can and master cylinder, and described pressure sensor is arranged on normally opened electricity
On pipeline between magnet valve and master cylinder；
Described motor is connected by screw rod with piston.
Preferably, the screw rod in described vehicle brake fluid pressure power assisting device is non-self-lock-ing screw rod.
Preferably, described vehicle brake fluid pressure power assisting device, it is characterised in that：Described motor is that high speed is low turns round electricity
Machine.
Preferably, the motor in described vehicle brake fluid pressure power assisting device is low speed torsion motor high.
Preferably, piston cup is provided between the piston and master cylinder in described vehicle brake fluid pressure power assisting device, just
Preferably sealed between piston and master cylinder.
Preferably, motor in described vehicle brake fluid pressure power assisting device coordinates non-self-lock-ing screw rod, current of electric with it is non-
Self-locking screw pressure is mutually checked carries out closed-loop control.
A kind of method that use vehicle brake fluid pressure power assisting device carries out master cylinder braking supercharging, comprises the following steps：
Step one：During brake pedal, ECU control normally open solenoid valves are closed, while electric motor starting, drives screw rod to turn
Dynamic, the system adds non-self-lock-ing screw rod using high-speed electric expreess locomotive, is axially moved piston, and brake fluid is entered into master from outlet extrusion
Cylinder；
Step 2：ECU judges brake pressure size according to current of electric, when pressure meets to be required, motor stalls；
Step 3：During brake release, motor reversal, band piston retracts, normally opened after brake pedal returns to origin position
Valve is opened.
The present invention coordinates non-self-lock-ing screw rod using motor, and current of electric and pressure are mutually checked and carries out closed-loop control.
When driver's brake pedal, ECU control normally open solenoid valves are closed, while electric motor starting, drives screw rod to turn
It is dynamic, piston is axially moved, brake fluid is entered into master cylinder (not identified in figure) from outlet extrusion.
Because the braking system construction in a systematic way pressure initial stage needs to eliminate the gap between friction plate and brake disc, it is therefore desirable to which system is responded
Hurry up, quickly can set up pressure, so adding non-self-lock-ing screw rod preferably with high-speed electric expreess locomotive.
ECU judges brake pressure size according to current of electric, when pressure meets to be required, motor stalls.
During brake release, motor reversal, band piston is retracted, and after brake pedal returns to origin position, normally open valve is opened.
The present invention has following advantage compared to prior art：
1st, brake-by-wire supercharging device, reduces cost are simplified.
2nd, non-self-lock-ing screw rod is added using motor, the response time is fast.
3rd, mutually being checked using current of electric and pressure carries out closed-loop control, improves safety coefficient.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
Other accompanying drawings are obtained with according to these accompanying drawings.
Fig. 1 is the overall structure diagram of vehicle brake fluid pressure power assisting device of the present invention.
Label declaration：1st, motor；2nd, non-self-lock-ing screw rod；3rd, master cylinder；4th, piston；5th, normally open solenoid valve；6th, oil can；7th, piston
Pressure sensor；8th, piston cup；9th, export.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, following examples be explanation of the invention and
The invention is not limited in following examples.
Embodiment：
As shown in figure 1, the invention provides a kind of vehicle brake fluid pressure power assisting device, it is characterised in that：Described vehicle
Brake fluid pressure power assisting device includes master cylinder 3, motor 1, screw rod, piston pressure sensor 7, normally open solenoid valve 5, oil can 6 and master cylinder
Outlet 9；Normally open solenoid valve is arranged on the pipeline of oil can and master cylinder, and pressure sensor is arranged between normally open solenoid valve and master cylinder
Pipeline on；Motor is connected by screw rod with piston.Screw rod is non-self-lock-ing screw rod 2；Motor is that high speed is low turns round motor or for low
Fast torsion motor high；Piston cup 8 is provided between piston and master cylinder；Motor coordinates non-self-lock-ing screw rod, current of electric and non-self-lock-ing
Screw pressure is mutually checked carries out closed-loop control.
Furthermore, it is necessary to explanation, the specific embodiment described in this specification, is named the shape of its parts and components
Title etc. can be with difference.The equivalent or simple change that all constructions according to described in inventional idea of the present invention, feature and principle are done, wraps
Include in the protection domain of patent of the present invention.Those skilled in the art can be to described specific implementation
Example is made various modifications or supplement or is substituted using similar mode, without departing from structure of the invention or surmounts this
Scope as defined in the claims, all should belong to protection scope of the present invention.
Claims (7)
1. a kind of vehicle brake fluid pressure power assisting device, it is characterised in that：Described vehicle brake fluid pressure power assisting device include master cylinder,
The outlet of motor, screw rod, piston pressure sensor, normally open solenoid valve, oil can and master cylinder；
Described normally open solenoid valve is arranged on the pipeline of oil can and master cylinder, and described pressure sensor is arranged on normally open solenoid valve
On pipeline between master cylinder；
Described motor is connected by screw rod with piston.
2. vehicle brake fluid pressure power assisting device according to claim 1, it is characterised in that：Described screw rod is non-self-lock-ing spiral shell
Bar.
3. vehicle brake fluid pressure power assisting device according to claim 1, it is characterised in that：Described motor is the low torsion of high speed
Motor.
4. vehicle brake fluid pressure power assisting device according to claim 1, it is characterised in that：Described motor is low speed torsion high
Motor.
5. vehicle brake fluid pressure power assisting device according to claim 1, it is characterised in that：Between described piston and master cylinder
It is provided with piston cup.
6. vehicle brake fluid pressure power assisting device according to claim 1, it is characterised in that：Described motor coordinates non-self-lock-ing
Screw rod, current of electric is mutually checked with non-self-lock-ing screw pressure and carries out closed-loop control.
7. a kind of method that use vehicle brake fluid pressure power assisting device carries out master cylinder braking supercharging, it is characterised in that：Including as follows
Step：
Step one：During brake pedal, ECU control normally open solenoid valves are closed, while electric motor starting, drives screw rod to rotate, should
System adds non-self-lock-ing screw rod using high-speed electric expreess locomotive, is axially moved piston, and brake fluid is entered into master cylinder from outlet extrusion；
Step 2：ECU judges brake pressure size according to current of electric, when pressure meets to be required, motor stalls；
Step 3：During brake release, motor reversal, band piston retracts, and after brake pedal returns to origin position, normally open valve is beaten
Open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710237441.7A CN106904160A (en) | 2017-04-12 | 2017-04-12 | A kind of vehicle brake fluid pressure power assisting device and its boosting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710237441.7A CN106904160A (en) | 2017-04-12 | 2017-04-12 | A kind of vehicle brake fluid pressure power assisting device and its boosting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106904160A true CN106904160A (en) | 2017-06-30 |
Family
ID=59196147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710237441.7A Pending CN106904160A (en) | 2017-04-12 | 2017-04-12 | A kind of vehicle brake fluid pressure power assisting device and its boosting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106904160A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566612A (en) * | 2019-08-23 | 2019-12-13 | 芜湖伯特利汽车安全系统股份有限公司 | Structure and method for reducing dragging torque of automobile brake calipers |
| CN114228685A (en) * | 2021-12-27 | 2022-03-25 | 广东技术师范大学 | Electronic hydraulic line control brake system and hydraulic closed-loop control strategy |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708718A (en) * | 2009-12-14 | 2010-05-19 | 奇瑞汽车股份有限公司 | Wire control braking system and braking method thereof |
| KR20110026588A (en) * | 2009-09-08 | 2011-03-16 | 현대모비스 주식회사 | Braking system for vehicle |
| KR20120045599A (en) * | 2010-10-29 | 2012-05-09 | 현대모비스 주식회사 | Multi function breaking pressure generating device |
| CN104724097A (en) * | 2015-02-03 | 2015-06-24 | 北京航空航天大学 | Dual-motor drive-by-wire pressure sequence adjusting brake system |
| CN104816714A (en) * | 2015-03-27 | 2015-08-05 | 同济大学 | Brake system pressure buildup unit and wheel cylinder hydraulic pressure control method |
| CN105270378A (en) * | 2015-11-04 | 2016-01-27 | 浙江万向精工有限公司 | Vehicle brake assisting system |
| CN105292089A (en) * | 2015-11-04 | 2016-02-03 | 浙江万向精工有限公司 | Vehicle braking device |
| CN206749781U (en) * | 2017-04-12 | 2017-12-15 | 潘泓冰 | A kind of vehicle brake fluid pressure power assisting device |
-
2017
- 2017-04-12 CN CN201710237441.7A patent/CN106904160A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110026588A (en) * | 2009-09-08 | 2011-03-16 | 현대모비스 주식회사 | Braking system for vehicle |
| CN101708718A (en) * | 2009-12-14 | 2010-05-19 | 奇瑞汽车股份有限公司 | Wire control braking system and braking method thereof |
| KR20120045599A (en) * | 2010-10-29 | 2012-05-09 | 현대모비스 주식회사 | Multi function breaking pressure generating device |
| CN104724097A (en) * | 2015-02-03 | 2015-06-24 | 北京航空航天大学 | Dual-motor drive-by-wire pressure sequence adjusting brake system |
| CN104816714A (en) * | 2015-03-27 | 2015-08-05 | 同济大学 | Brake system pressure buildup unit and wheel cylinder hydraulic pressure control method |
| CN105270378A (en) * | 2015-11-04 | 2016-01-27 | 浙江万向精工有限公司 | Vehicle brake assisting system |
| CN105292089A (en) * | 2015-11-04 | 2016-02-03 | 浙江万向精工有限公司 | Vehicle braking device |
| CN206749781U (en) * | 2017-04-12 | 2017-12-15 | 潘泓冰 | A kind of vehicle brake fluid pressure power assisting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566612A (en) * | 2019-08-23 | 2019-12-13 | 芜湖伯特利汽车安全系统股份有限公司 | Structure and method for reducing dragging torque of automobile brake calipers |
| CN114228685A (en) * | 2021-12-27 | 2022-03-25 | 广东技术师范大学 | Electronic hydraulic line control brake system and hydraulic closed-loop control strategy |
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