CN204978611U - Double -piston passive form footboard sensation simulator - Google Patents
Double -piston passive form footboard sensation simulator Download PDFInfo
- Publication number
- CN204978611U CN204978611U CN201520098583.6U CN201520098583U CN204978611U CN 204978611 U CN204978611 U CN 204978611U CN 201520098583 U CN201520098583 U CN 201520098583U CN 204978611 U CN204978611 U CN 204978611U
- Authority
- CN
- China
- Prior art keywords
- piston
- spring
- double
- simulator
- pedal
- 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.)
- Active
Links
Landscapes
- Regulating Braking Force (AREA)
- Braking Elements And Transmission Devices (AREA)
Abstract
The utility model provides a double -piston passive form footboard sensation simulator, includes: footboard simulator shell, first piston, first spring, second piston, second spring, shape sealing washer, end cover, first piston be used for bearing hydraulic pressure force and first spring is given in the transmission for provide the footboard counter -force, and have the guide effect, the second piston be used for transmitting the spring force of first spring for the second spring to the guide effect has, the end cover is used for fixing a position the second spring to bear making a concerted effort of first spring and second spring spring force, the type sealing washer is used for the brake fluid of sealed first piston front end, prevents the hydraulic pressure force loss, the utility model has the characteristics of simple structure, reliability brake pedal high, better driving simulation person feel, are applicable to very much the electron hydraulic braking system of footboard and brake master cylinder decoupling zero etc.
Description
Technical field
The utility model belongs to automobile technical field, relates to automobile brake technology, especially a kind of passive pedal sense simulator being applicable to EHB.
Background technology
Due to petering out and the problem such as destruction of environment of oil, the advantages such as energy-saving and environmental protection make battery-driven car become the Main way of auto-industry future development.In order to improve energy utilization rate, economize on resources, protection of the environment; the auto-industry of various countries are are all researching and developing electronlmobil energetically; due to the restriction of motor, battery technology etc., the universal and commercialization that electronlmobil continual mileage is short, cost this two problems high hinders electronlmobil.
Existing EHB, the HAShev system of such as Bosch company and the SCB system of TRW Ltd. (US) One Space Park, Redondo Beach CA 90278 U.S.A., general is all coordinate motor and the braking Input Forces of pump to hydraulic efficiency pressure system to carry out ACTIVE CONTROL by installation high-voltage energy storage, its braking energy reclaimed is many, braking response is fast, accurately can identify braking intention and the simulation pedal sense of chaufeur.But high pressure accumulator technology is also immature, and reliability and safety also exist hidden danger, also improves the difficulty of control and the risk of inefficacy in addition owing to which increasing multiple electromagnetic valve.
High pressure accumulator, pump, hydraulic tubing and electromagnetic valve is replaced with motor and speed reduction gearing in electronic mechanical hydraulic brake system, also ACTIVE CONTROL and the adjustment of hydraulic coupling can be realized, by control path transmission of signal, master cylinder is promoted by motor drive machinery structure, there is not the problem such as high pressure accumulator potential safety hazard, electromagnetic valve inefficacy, its structure is simple, reduce cost, and the reliability of mechanical connection and safety are compared to full decoupling Shi Genggao, directly controlled by ECU, be easy to realize the functions such as ABS, TCS, ESC, ACC.The brake system of this form has a bright future, and is the important developing direction of following brake system.
Because the EHB that have employed motor and speed reducer structure needs pedal to remove with master brake cylinder push rod to be directly connected, this just needs to provide an antagonistic force to simulate conventional braking system to the outbreak of pedal firmly when driver steps on brake pedal, there is provided good pedal sense to driver, need to provide a kind of pedal sense simulator.
Utility model content
The purpose of this utility model is to provide a kind of double-piston passive type pedal sense simulator being applicable to EHB, can provide good pedal sense, be easy to control, safe and reliable.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of double-piston passive type pedal sense simulator, comprising:
Pedal simulator housing, inside is provided with cylinder block, and its left end sidewall is provided with through hole, and this through hole communicates with secondary master cylinder;
First piston, be arranged in the cylinder body of pedal simulator housing, its left end bears hydraulic coupling, and right-hand member bears spring force;
Second piston, is arranged in the cylinder body of pedal simulator housing, and it is between the first spring and the second spring, for bearing and transmit the power between the first spring and the second spring;
End cap, is arranged on pedal simulator cylinder body right-end openings place, for closed pedal simulator cylinder body and the position of restraining spring two right-hand member.
Further, the cylinder body left end of described pedal simulator is provided with stepped hole, for limiting first piston position.
On the left of described first piston, external cylindrical surface is provided with the groove of annular, wherein installs tangible seal ring, and the liquid for sealing first piston left end prevents from revealing.
Be provided with annular wall on the right side of described first piston, this annular wall comprises the inner side cylinder of the outside cylinder with the effect of leading and bearing side force and the effect with location first spring radial position.
Be provided with annular wall on the left of described second piston, this annular wall comprises the interior cylinder of the outside cylinder with the effect of leading and bearing side force and the effect with location first spring radial position.
Be provided with boss on the right side of described second piston, this boss comprises the external cylindrical surface with the effect of piston radial position, location second; Second is provided with through hole in the middle of piston, for being communicated with the air pressure about the second piston.
Described end cap right side is provided with boss and is convenient to this end cap to install with fastening; Through hole is provided with, for being communicated with air pressure in pedal simulator cylinder body and extraneous in the middle of this end cap.
Further, described pedal simulator is by the pedal sense of the different spring simulation Conventional braking systems of two rigidity.When pedal displacement is less, the rigidity of pedal simulator is the rigidity of two spring series connection; When after first piston and the second piston contact, the rigidity of pedal simulator is the rigidity of the second spring; Can by the suitable rigidity choosing two sections of springs, the figure line realizing treadle effort and displacement is the form of two sections of straight lines.
The utility model has the features such as structure is simple, the brake pedal feel of high, the better drive simulating person of reliability, the EHB being highly suitable for pedal and master brake cylinder decoupling zero.
Accompanying drawing explanation
Fig. 1 is the operating diagram of double-piston passive type pedal sense simulator embodiment of the present utility model.
Fig. 2 is the constructional drawing of double-piston passive type pedal sense simulator embodiment of the present utility model.
Label in accompanying drawing represents:
1-brake pedal; 2-secondary master cylinder; 3-fluid reservoir; 4-normally open solenoid valve; 5-pedal simulator; 6-shape seal ring; 7-first piston; 8-pedal simulator housing; 9-the first spring; 10-the second piston; 11-the second spring; 12-end cap.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is illustrated further.
As shown in Figure 1, be applicable to the novel double-piston passive type pedal sense simulator of EHB, comprise:
Pedal simulator housing 8, inside is provided with cylinder block, and its left end sidewall is provided with through hole, and this through hole communicates with secondary master cylinder 2;
First piston 7 is arranged in the cylinder body of pedal simulator housing 8, and its left end end bears hydraulic coupling, has right-hand member to bear spring force;
Second piston 10 is arranged in the cylinder body of pedal simulator housing 8, and it is between the first spring 9 and the second spring 11, for bearing and transmit the power between the first spring 9 and the second spring 11;
End cap 12 is arranged on pedal simulator 5 cylinder body right-end openings place, limits the position of the second spring 11 right-hand member for closed pedal simulator cylinder body;
The cylinder body left end of described pedal simulator is provided with stepped hole, for limiting first piston position.
On the left of described first piston 7, external cylindrical surface is provided with the groove of annular, wherein installs tangible seal ring 6, for sealing the liquid of first piston 7 left end, prevents from revealing; Be provided with annular wall on the right side of first piston 7, this annular wall mixed lateral column mask has guiding and bears the effect of side force, and this annular wall columnae medialis mask has the effect of location first spring 9 radial position.
Be provided with annular wall on the left of described second piston 10, this annular wall outside cylinder has guiding and bears the effect of side force, and in this annular wall, cylinder has the effect of location first spring 9 radial position; Be provided with boss on the right side of second piston 10, this boss external cylindrical surface has the effect of piston radial position, location second; Second is provided with through hole in the middle of piston 10, for being communicated with the air pressure about the second piston.
Described end cap 12 right side is provided with boss, and spanner can be utilized to install with fastening by this end cap 12; Through hole is provided with, for being communicated with air pressure in pedal simulator cylinder body and extraneous in the middle of this end cap 12.
The outlet of this double-piston passive type pedal sense simulator braking liquid is divided into two-way, and secondary master cylinder 2 of leading up to is connected with pedal 1, and normally open solenoid valve 4 of separately leading up to is connected with fluid reservoir 3.
During normal work, normally open solenoid valve 4 powers on, and becomes closed condition; When driver steps on brake pedal 1, hydraulic coupling in secondary master cylinder 2 increases and the first piston 7 promoted in double-piston passive type pedal sense simulator 5 moves right, now the first spring 9 and the second spring 11 are out of shape by compression and produce and show effect firmly, produce pedal sense, rigidity is now the rigidity that the first spring 9 is connected with the second spring 11, and this rigidity is less; When brake pedal 1 is operated certain distance and causes first piston 7 to contact with the annular wall of the second piston 10, the first spring 9 can not redeformation, and rigidity is now the rigidity of independent second spring 11, and this rigidity is larger.
When not needing pedal simulator to work, normally open solenoid valve 4 times electricity, become connected state, and when driver steps on brake pedal 1, the liquid in secondary master cylinder 2 is pressed in fluid reservoir, avoid producing extra resistance.
Above-mentioned is can understand for ease of those skilled in the art and apply the utility model to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the utility model is not limited to the above embodiments, and those skilled in the art, according to announcement of the present utility model, do not depart from improvement that the utility model category makes and amendment all should within protection domain of the present utility model.
Claims (7)
1. a double-piston passive type pedal sense simulator, is characterized in that: comprising:
Pedal simulator housing, inside is provided with cylinder block, and its left end sidewall is provided with through hole, and this through hole communicates with secondary master cylinder;
First piston, be arranged in the cylinder body of pedal simulator housing, its left end bears hydraulic coupling, and right-hand member bears spring force;
Second piston, is arranged in the cylinder body of pedal simulator housing, and it is between the first spring and the second spring, for bearing and transmit the power between the first spring and the second spring;
End cap, is arranged on pedal simulator cylinder body right-end openings place, for closed pedal simulator cylinder body and the position of restraining spring two right-hand member.
2. double-piston passive type pedal sense simulator according to claim 1, is characterized in that: the cylinder body left end of described pedal simulator is provided with stepped hole, for limiting first piston position.
3. double-piston passive type pedal sense simulator according to claim 1, is characterized in that: on the left of described first piston, external cylindrical surface is provided with the groove of annular, wherein installs tangible seal ring, and the liquid for sealing first piston left end prevents from revealing.
4. double-piston passive type pedal sense simulator according to claim 1, it is characterized in that: be provided with annular wall on the right side of described first piston, this annular wall comprises the inner side cylinder of the outside cylinder with the effect of leading and bearing side force and the effect with location first spring radial position.
5. double-piston passive type pedal sense simulator according to claim 1, it is characterized in that: be provided with annular wall on the left of described second piston, this annular wall comprises the interior cylinder of the outside cylinder with the effect of leading and bearing side force and the effect with location first spring radial position.
6. double-piston passive type pedal sense simulator according to claim 1, is characterized in that: be provided with boss on the right side of described second piston, and this boss comprises the external cylindrical surface with the effect of piston radial position, location second; Second is provided with through hole in the middle of piston, for being communicated with the air pressure about the second piston.
7. double-piston passive type pedal sense simulator according to claim 1, is characterized in that: described end cap right side is provided with boss and is convenient to this end cap to install with fastening; Through hole is provided with, for being communicated with air pressure in pedal simulator cylinder body and extraneous in the middle of this end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520098583.6U CN204978611U (en) | 2015-02-11 | 2015-02-11 | Double -piston passive form footboard sensation simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520098583.6U CN204978611U (en) | 2015-02-11 | 2015-02-11 | Double -piston passive form footboard sensation simulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204978611U true CN204978611U (en) | 2016-01-20 |
Family
ID=55113011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520098583.6U Active CN204978611U (en) | 2015-02-11 | 2015-02-11 | Double -piston passive form footboard sensation simulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204978611U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109849882A (en) * | 2019-03-06 | 2019-06-07 | 上海擎度汽车科技有限公司 | Power simulator |
| CN110027535A (en) * | 2018-01-12 | 2019-07-19 | 比亚迪股份有限公司 | For the pedal sense simulator of vehicle and with its vehicle |
| CN110027521A (en) * | 2018-01-12 | 2019-07-19 | 比亚迪股份有限公司 | The pedal sense simulator of vehicle and vehicle with it |
| CN114013411A (en) * | 2021-11-10 | 2022-02-08 | 万向钱潮股份有限公司 | Pedal simulator of large vehicle control power-assisted system |
-
2015
- 2015-02-11 CN CN201520098583.6U patent/CN204978611U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110027535A (en) * | 2018-01-12 | 2019-07-19 | 比亚迪股份有限公司 | For the pedal sense simulator of vehicle and with its vehicle |
| CN110027521A (en) * | 2018-01-12 | 2019-07-19 | 比亚迪股份有限公司 | The pedal sense simulator of vehicle and vehicle with it |
| CN110027521B (en) * | 2018-01-12 | 2021-09-21 | 比亚迪股份有限公司 | Pedal feel simulator of vehicle and vehicle with same |
| CN109849882A (en) * | 2019-03-06 | 2019-06-07 | 上海擎度汽车科技有限公司 | Power simulator |
| CN114013411A (en) * | 2021-11-10 | 2022-02-08 | 万向钱潮股份有限公司 | Pedal simulator of large vehicle control power-assisted system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204978611U (en) | Double -piston passive form footboard sensation simulator | |
| CN107031597B (en) | Integrated electronic hydraulic braking system and method | |
| CN103754210B (en) | A kind of motor-driven EHB | |
| CN203698256U (en) | Special-purpose vehicle braking system | |
| CN103318162A (en) | Pedal decoupling type and integrated type brake master cylinder assembly for measuring integrated pedal displacement | |
| CN204775204U (en) | Parallel bar formula full decoupling electron hydraulic braking system | |
| CN203078511U (en) | Automobile brake-by-wire system | |
| CN103754208B (en) | A kind of EHB of Dual-motors Driving | |
| CN204567653U (en) | A kind of EHB | |
| CN104309599A (en) | Electro-hydraulic brake system | |
| CN103950443A (en) | Pedal feeding active control type electronic hydraulic braking system | |
| CN204567648U (en) | A kind of decoupling type EHB | |
| CN103754203A (en) | Electronic hydraulic brake system with mechanical failure protective function | |
| CN103950444A (en) | Electronic hydraulic brake system capable of reducing liquid outlets of main cylinder | |
| CN205044723U (en) | Improve two motor drive electron hydraulic braking systems of master cylinder | |
| CN203766732U (en) | Passive type pedal feeling simulation device | |
| CN104071141A (en) | A braking system for a vehicle and a method for operation of the braking system | |
| CN207523678U (en) | A kind of pedal simulator for being used to decouple braking system | |
| CN105270378B (en) | Service brake force aid system | |
| CN204567642U (en) | A kind of differential cooperative type dual power source EHB | |
| CN104648367A (en) | Fully-decoupled electric-liquid compound braking system | |
| CN106627541B (en) | Active hydraulic braking system of automobile | |
| CN207550177U (en) | A kind of pedal simulator for being used to decouple braking system | |
| CN102795216A (en) | Hydraulic unit for integrated automobile brake system | |
| CN106740777B (en) | Double-cylinder type braking auxiliary cylinder mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180202 Address after: 200092 Shanghai City, Yangpu District Siping Road No. 1230 Patentee after: Tongji innovation venture Holdings Limited Address before: 200092 Shanghai City, Yangpu District Siping Road No. 1239 Patentee before: Tongji University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180704 Address after: No. 1239, Siping Road, Yangpu District, Shanghai Patentee after: Tongji University Address before: No. 1230, Siping Road, Yangpu District, Shanghai Patentee before: Tongji innovation venture Holdings Limited |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190404 Address after: 201800 79, 328 Hengyong Road, Waigang Town, Jiading District, Shanghai Patentee after: Shanghai Yu Automotive Technology Co. Ltd. Address before: No. 1239, Siping Road, Yangpu District, Shanghai Patentee before: Tongji University |