CN201128414Y - Vacuum booster unit for electric automobile - Google Patents
Vacuum booster unit for electric automobile Download PDFInfo
- Publication number
- CN201128414Y CN201128414Y CNU2007201961497U CN200720196149U CN201128414Y CN 201128414 Y CN201128414 Y CN 201128414Y CN U2007201961497 U CNU2007201961497 U CN U2007201961497U CN 200720196149 U CN200720196149 U CN 200720196149U CN 201128414 Y CN201128414 Y CN 201128414Y
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- China
- Prior art keywords
- vacuum
- vacuum booster
- vacuum pump
- pressure sensor
- booster
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- 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.)
- Expired - Lifetime
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- Regulating Braking Force (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The utility model discloses an electromobile vacuum power assistor, comprising a braking pedal, a vacuum assistor, a major braking cylinder, a vacuum pump, a vacuum pot and a major control ECU. The vacuum power assistor is respectively connected with the braking pedal and the major braking cylinder; the vacuum pump is connected with the vacuum power assistor through the vacuum pot; the braking pedal is provided with an angle displacement sensor and the vacuum pot is provided with a pressure sensor; the angle displacement sensor, the pressure sensor and the vacuum pump are electrically connected with the major control ECU respectively. As the braking pedal is provided with an angle displacement sensor for detecting the angle position changes of the pedal, and the vacuum pot is provided with a pressure sensor for measuring the internal pressure and for sending the sensor signals to the major control ECU, the vacuum power assistor provided by the utility model can more accurately control the motion of the vacuum pump and allow more flexible operation.
Description
Technical field
The utility model relates to a kind of vacuum booster unit, refers more particularly to a kind of brake vacuum work-saving device that can be used for electronlmobil.
Background technology
At present, basically all be equipped with power brake at traditional fuel-engined vehicle, using more is vacuum-assisted brake, the negative pressure that induction maniflod produced when it utilized engine operation, the interior rubber diaphragm of vacuum booster is moved, promote the piston of master brake cylinder, alleviate the power that the people steps on brake pedal with this, maneuverability pattern is relatively sensitiveer.And the push rod of current electronlmobil energy assisted braking system by pedal links up servo-unit and master brake cylinder, control power brake according to the electric signal that cavity pressure differential pressure sensor before and after signal piping pressure or the servo-unit provides, though can reach the purpose of brake, but because its maneuvering performance is flexible not as traditional fuel-engined vehicle, therefore the effect of braking can not show a candle to traditional fuel-engined vehicle, make safety, the road-holding property of electronlmobil all be affected, there is potential safety hazard in a lot of aspects.
The utility model content
The utility model provides the vacuum booster unit that a kind of operating characteristic is flexible, braking effect is good for overcoming the above problems.
The electronlmobil vacuum booster unit that the utility model provides, comprise brake pedal, vacuum booster, master brake cylinder, vacuum pump, vacuum reservoir, master control ECU, vacuum booster is connected with master brake cylinder with brake pedal respectively, vacuum pump is connected with vacuum booster by vacuum reservoir, brake pedal is provided with angle displacement sensor, vacuum reservoir is provided with pressure sensor, and angle displacement sensor, pressure sensor and vacuum pump are electrically connected with master control ECU respectively.
Described vacuum booster is divided into ante-chamber and back cavity two parts, and described ante-chamber is provided with a vacuum check valve, and described back cavity is provided with a control cock.
The ante-chamber of described vacuum booster is connected with described vacuum reservoir by described vacuum check valve, and the back cavity of described vacuum booster is connected with described brake pedal by described control cock.
The beneficial effects of the utility model: owing to angle displacement sensor is installed on brake pedal to detect the angle position change situation of pedal, simultaneously a pressure sensor has been installed on vacuum reservoir to measure its air pressure inside, give master control ECU in the lump with the signal of these sensors, the action of control vacuum pump is more accurate like this, operating characteristic is more flexible, and braking effect is more superior.
Description of drawings
Fig. 1 is the schematic block diagram of a kind of electronlmobil vacuum booster unit of the utility model;
Fig. 2 is the structural representation of a kind of electronlmobil vacuum booster unit of the utility model.
The specific embodiment
As shown in Figure 1, a kind of electronlmobil vacuum booster unit that the utility model provides, comprise: brake pedal 1, vacuum booster 3, master brake cylinder 4, vacuum reservoir 5, vacuum pump 6, master control ECU12, vacuum booster 3 is connected with master brake cylinder 4 with brake pedal 1 respectively, and power-assisted is provided when car brakeing; Vacuum pump 6 is connected with vacuum booster 3 by vacuum reservoir 5.
Vacuum reservoir 5 is provided with pressure sensor 11, be used to measure the air pressure in the vacuum reservoir 5, this pressure sensor 11 can adopt various piezoresistive effect formula pressure sensor known in those skilled in the art or resistance strain gauge formula pressure sensor, installation site according to the pressure sensor of different principle of work also has nothing in common with each other in addition, this also is known in those skilled in the art, does not repeat them here.
Master control ECU12 is electrically connected with pressure sensor 11, angle displacement sensor 13, vacuum pump 6 respectively, is used for the pressure signal and the displacement signal of receiving sensor, after handling by analysis, and the opening and closing of control vacuum pump 6.
As shown in Figure 2, vacuum booster 3 comprises a servo vacuum air chamber 8, and the thrust that produces during 8 work of servo vacuum air chamber acts directly on the push rod of master brake cylinder 4, and the hydraulic coupling that master brake cylinder 4 transmits finally acts on the vehicle braked wheel cylinder.This servo vacuum air chamber 8 is divided into ante-chamber and back cavity by a servo air chamber diaphragm (not shown), ante-chamber is provided with a vacuum check valve 10, ante-chamber is connected with vacuum reservoir 5 by vacuum check valve 10 and vacuum line, is provided with a control cock 2 on back cavity, and control cock 2 is connected with brake pedal 1.
Fig. 2 also shows the braking execution unit, and these parts comprise master brake cylinder 4, connects brake wheel cylinder 14,15,16,17 (connection mode is not shown) by brake circuit 7, also is provided with the receiver 9 of storing braking liquid on master brake cylinder 4.
According to the preferred implementation of device of the present invention, master control ECU12 through Treatment Analysis, controls vacuum pump 6 opening and closing by receiving the signal of pressure sensor 11 and angle displacement sensor 13.Master control ECU12 starts vacuum pump 6 by powering up for vacuum pump 6, and controls the duration of vacuum pump 6 unlatchings by the time that control vacuum pump 6 powers up.
Below with reference to Fig. 2, the concrete working process of the vacuum booster unit that the utility model provides is described.
After the vehicle launch energising, master control ECU12 and corresponding sensor are just started working, pressure sensor 11 handles to master control ECU12 the pressure signal transmission in the vacuum reservoir of measuring 5, when vacuum reservoir 5 internal gas pressures during greater than given value, master control ECU12 sends a signal to vacuum pump 6, start vacuum pump 6, vacuum reservoir 5 is connected in vacuum line and vacuum booster 3 ante-chambers, air wherein through vacuum check valve 10 by vacuum pump 6 sucking-offs, brake pedal 1 not action this moment, master brake cylinder 3 also just keeps existing quiescence.When vacuum reservoir 5 internal gas pressures reached setting value, master control ECU6 received data by analysis, gave vacuum pump 6 signals, and vacuum pump 6 stops action.After stepping on brake pedal 1, the effect of connecting rod mechanism passes to vacuum booster 3 with power, and the air pressure of its back cavity raises, ante-chamber air pressure is in a lower position, produce difference of pressure, application force passes to brake wheel cylinder 14,15,16,17 by brake circuit 7, forms power brake.So perseveration can make chaufeur need not that brake pedal 1 is applied bigger power and just can realize braking.
Claims (3)
1, a kind of electronlmobil vacuum booster unit, comprise brake pedal, vacuum booster, master brake cylinder, vacuum pump, vacuum reservoir, master control ECU, described vacuum booster is connected with master brake cylinder with described brake pedal respectively, described vacuum pump is connected with described vacuum booster by vacuum reservoir, it is characterized in that: described brake pedal is provided with angle displacement sensor, described vacuum reservoir is provided with pressure sensor, and described angle displacement sensor, pressure sensor and vacuum pump are electrically connected with described master control ECU respectively.
2, vacuum booster unit according to claim 1 is characterized in that: described vacuum booster is divided into ante-chamber and back cavity two parts, and described ante-chamber is provided with a vacuum check valve, and described back cavity is provided with a control cock.
3, vacuum booster unit according to claim 2 is characterized in that: the ante-chamber of described vacuum booster is connected with described vacuum reservoir by described vacuum check valve, and the back cavity of described vacuum booster is connected with described brake pedal by described control cock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201961497U CN201128414Y (en) | 2007-12-17 | 2007-12-17 | Vacuum booster unit for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201961497U CN201128414Y (en) | 2007-12-17 | 2007-12-17 | Vacuum booster unit for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201128414Y true CN201128414Y (en) | 2008-10-08 |
Family
ID=40016246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201961497U Expired - Lifetime CN201128414Y (en) | 2007-12-17 | 2007-12-17 | Vacuum booster unit for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201128414Y (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767581A (en) * | 2008-12-30 | 2010-07-07 | 比亚迪股份有限公司 | Vacuum assisted brake system, control method thereof, and vehicle comprising vacuum assisted brake system |
| CN101791980A (en) * | 2010-02-11 | 2010-08-04 | 中国汽车技术研究中心 | Electric vacuum servo device control strategy of electric car brake |
| CN101844556A (en) * | 2010-05-04 | 2010-09-29 | 奇瑞汽车股份有限公司 | Brake method and brake vacuum system of electric motor vehicle |
| CN101890949A (en) * | 2010-07-30 | 2010-11-24 | 重庆长安汽车股份有限公司 | Vacuum booster security control system and control method of strong hybrid electric vehicle |
| WO2011047594A1 (en) * | 2009-10-21 | 2011-04-28 | 深圳市陆地方舟电动车有限公司 | Electric booster brake assist system for electric vehicle |
| CN102180161A (en) * | 2011-04-21 | 2011-09-14 | 纽贝耳汽车(杭州)有限公司 | Electric auxiliary brake system of electric automobile |
| CN102297013A (en) * | 2010-06-25 | 2011-12-28 | 福特全球技术公司 | Method and device for producing vacuum in vacuum chamber of vehicle having internal combustion engine |
| CN102826081A (en) * | 2012-09-12 | 2012-12-19 | 浙江吉利汽车研究院有限公司杭州分公司 | Automobile brake system, method and automobile with brake system |
| CN103359098A (en) * | 2012-03-27 | 2013-10-23 | 北汽福田汽车股份有限公司 | Electromobile control method |
| CN103693033A (en) * | 2012-09-27 | 2014-04-02 | 北汽福田汽车股份有限公司 | Vacuum boosting system, electric vehicle and vacuum boosting control method |
| CN103790804A (en) * | 2012-10-26 | 2014-05-14 | 爱三工业株式会社 | Negative pressure supply unit |
| CN105083249A (en) * | 2015-09-22 | 2015-11-25 | 苏州普京真空技术有限公司 | Vacuum booster |
| CN107499298A (en) * | 2017-09-13 | 2017-12-22 | 无锡商业职业技术学院 | Vacuum control device for electric automobile braking system |
| CN113370953A (en) * | 2021-08-09 | 2021-09-10 | 北京智人智设网络科技有限责任公司 | New energy automobile braking electric vacuum boosting system |
-
2007
- 2007-12-17 CN CNU2007201961497U patent/CN201128414Y/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767581A (en) * | 2008-12-30 | 2010-07-07 | 比亚迪股份有限公司 | Vacuum assisted brake system, control method thereof, and vehicle comprising vacuum assisted brake system |
| WO2011047594A1 (en) * | 2009-10-21 | 2011-04-28 | 深圳市陆地方舟电动车有限公司 | Electric booster brake assist system for electric vehicle |
| CN101791980A (en) * | 2010-02-11 | 2010-08-04 | 中国汽车技术研究中心 | Electric vacuum servo device control strategy of electric car brake |
| CN101844556A (en) * | 2010-05-04 | 2010-09-29 | 奇瑞汽车股份有限公司 | Brake method and brake vacuum system of electric motor vehicle |
| CN102297013A (en) * | 2010-06-25 | 2011-12-28 | 福特全球技术公司 | Method and device for producing vacuum in vacuum chamber of vehicle having internal combustion engine |
| CN101890949A (en) * | 2010-07-30 | 2010-11-24 | 重庆长安汽车股份有限公司 | Vacuum booster security control system and control method of strong hybrid electric vehicle |
| CN101890949B (en) * | 2010-07-30 | 2012-11-07 | 重庆长安汽车股份有限公司 | Vacuum booster security control system and control method of strong hybrid electric vehicle |
| CN102180161A (en) * | 2011-04-21 | 2011-09-14 | 纽贝耳汽车(杭州)有限公司 | Electric auxiliary brake system of electric automobile |
| CN103359098B (en) * | 2012-03-27 | 2015-10-28 | 北汽福田汽车股份有限公司 | The control method of electronlmobil |
| CN103359098A (en) * | 2012-03-27 | 2013-10-23 | 北汽福田汽车股份有限公司 | Electromobile control method |
| CN102826081A (en) * | 2012-09-12 | 2012-12-19 | 浙江吉利汽车研究院有限公司杭州分公司 | Automobile brake system, method and automobile with brake system |
| CN103693033A (en) * | 2012-09-27 | 2014-04-02 | 北汽福田汽车股份有限公司 | Vacuum boosting system, electric vehicle and vacuum boosting control method |
| CN103790804A (en) * | 2012-10-26 | 2014-05-14 | 爱三工业株式会社 | Negative pressure supply unit |
| CN105083249A (en) * | 2015-09-22 | 2015-11-25 | 苏州普京真空技术有限公司 | Vacuum booster |
| CN107499298A (en) * | 2017-09-13 | 2017-12-22 | 无锡商业职业技术学院 | Vacuum control device for electric automobile braking system |
| CN113370953A (en) * | 2021-08-09 | 2021-09-10 | 北京智人智设网络科技有限责任公司 | New energy automobile braking electric vacuum boosting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081008 |
|
| CX01 | Expiry of patent term |