CN101885330A - Vacuum pump braking system for adaptive electric vehicle - Google Patents
Vacuum pump braking system for adaptive electric vehicle Download PDFInfo
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- CN101885330A CN101885330A CN 201010226766 CN201010226766A CN101885330A CN 101885330 A CN101885330 A CN 101885330A CN 201010226766 CN201010226766 CN 201010226766 CN 201010226766 A CN201010226766 A CN 201010226766A CN 101885330 A CN101885330 A CN 101885330A
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- vacuum
- braking system
- vacuum pump
- booster
- chamber
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- 230000003044 adaptive effect Effects 0.000 title claims abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000006698 induction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
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- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The invention belongs to the technical field of electric automobile braking, and particularly relates to a vacuum pump braking system for an adaptive electric vehicle, which is applied to electric vehicles. A vacuum booster of the braking system is arranged between a brake pedal and a brake master cylinder; the brake pedal is connected with the vacuum booster through a push rod; the brake master cylinder is communicated with a front wheel brake cylinder and a rear wheel brake cylinder respectively; the components of the vacuum booster, a vacuum one-way valve, a vacuum tank, a vacuum pump, a vacuum pump ECU and the like are connected in series to form a vacuum boost braking system of an electric automobile; and the vacuum pump ECU is connected with a pressure sensor and a power supply respectively. The vacuum pump braking system improves the existing vacuum boost braking system of the electric automobile, and improves the stability and the environmental suitability of the vacuum boost braking system of the electric automobile.
Description
Technical field
The invention belongs to electronlmobil braking technology field, particularly be applied to a kind of vacuum pump braking system for adaptive electric vehicle of elec. vehicle.
Background technology
For the vehicle braked system, in the time can't satisfying the needs of service brake, just need to adopt vacuum boosting braking system by the braking force that manpower produced.The vacuum source of against vacuum force aid system, gasoline-powered vehicle can produce higher vacuum pressure at induction maniflod, can provide enough vacuum sources for vacuum boosting braking system, and the vehicle that drives for diesel motor and gasoline direct injection engine, the requirement that can not provide the vacuum pressure of par to satisfy the vacuum brake force aid system at the induction maniflod place provides vacuum source so need to install vacuum pump.
Equally, for electronlmobil, brake system does not have vacuum source yet, therefore need change a social system the brake system vacuum booster unit, installs an electric vacuum pump with enough free air capacities additional, thereby can produce enough degree of vacuum.The size of the degree of vacuum that vacuum pump produced, the magnitude relationship of external atmosphere pressure arrive the mode of operation of vacuum booster, are related to the performance of servo-unit, and can have influence on brake system reliable operation under various operating modes.So the work of existing electronlmobil vacuum boosting braking system is subjected to the influence of sea level elevation.The present invention improves existing electronlmobil vacuum boosting braking system, improves the stability and the compatible with environment of electronlmobil vacuum boosting braking system.
Summary of the invention
The purpose of this invention is to provide a kind of vacuum pump braking system for adaptive electric vehicle, it is characterized in that, vacuum booster is installed between brake pedal and the master brake cylinder, brake pedal is connected with vacuum booster by push rod, and master brake cylinder is connected with front wheel brake oil cylinder and trailing wheel brake cylinder respectively; Vacuum booster, vacuum check valve, vacuum reservoir, vacuum pump and vacuum pump ECU form the electronlmobil vacuum boosting braking system, and also pressure sensor and power supply connect vacuum pump ECU respectively.
Described pressure sensor pressure sensor comprises atmospheric-pressure sensor and vacuum sensor, is used to measure the degree of vacuum in external atmospheric pressure and the vacuum reservoir.
Described vacuum booster is controlled front wheel brake oil cylinder, trailing wheel brake cylinder by the control brake master cylinder.
The servo vacuum air chamber of described vacuum booster is divided into vacuum chamber and atmosphere chamber (can communicate with atmosphere when atmos-valve is opened) by the piston that has rubber diaphragm, the power-assisted size that can provide vacuum booster depends on the size of the air pressure difference between vacuum chamber and the atmosphere chamber, when the pressure of atmosphere chamber reached external atmosphere pressure, vacuum booster provided maximum brake boost.
The invention has the beneficial effects as follows existing electronlmobil vacuum boosting braking system is improved, improve the stability and the compatible with environment of electronlmobil vacuum boosting braking system.
Description of drawings
Fig. 1 is an electric vacuum booster servo braking system scheme drawing.
Fig. 2 is vacuum pump braking system braking schematic flow sheet.
Fig. 3 is the vacuum booster structural representation.
The specific embodiment
The invention provides a kind of vacuum pump braking system for adaptive electric vehicle.Below in conjunction with accompanying drawing the present invention is illustrated.
Fig. 1 is an electric vacuum booster servo braking system scheme drawing.Among the figure, vacuum booster 6 is installed between brake pedal 7 and the master brake cylinder 5, and brake pedal 7 is connected with vacuum booster 6 by push rod 8, and master brake cylinder 5 is connected with front wheel brake oil cylinder 4 and trailing wheel brake cylinder 3 respectively; Vacuum booster 6, vacuum check valve 9, vacuum reservoir 1, vacuum pump 2 and vacuum pump ECU16 etc. are composed in series the electronlmobil vacuum boosting braking system, and vacuum pump ECU16 also is connected with pressure sensor 10 and power supply 11 respectively.Vacuum pump 2 can be controlled the size of degree of vacuum in the vacuum reservoir 1, and vacuum reservoir 1 provides vacuum source by vacuum lamp for the work of vacuum booster 6.
As shown in Figure 2, by push rod 8 direct controls, braking fluid is assigned to front wheel brake oil cylinder 4 and trailing wheel brake cylinder 3 by master brake cylinder 5 to this electric vacuum booster servo braking system by brake pedal 7; The power that vacuum booster 6 and brake pedal 7 produce is superimposed on the push rod 8 that acts on master brake cylinder 5, to improve the delivery pressure of master brake cylinder 5; The servo vacuum air chamber of vacuum booster 6 is divided into vacuum chamber 14 and atmosphere chamber 13 (generally being in vacuum state) by having rubber diaphragm 12, atmosphere chamber 13 can communicate (as shown in Figure 3) with atmosphere when atmos-valve 15 is opened, the power-assisted size that can provide 6 of vacuum boosters depends on the size of the air pressure difference between vacuum chamber 14 and the atmosphere chamber 13, when the pressure of atmosphere chamber reached external atmosphere pressure, vacuum booster 6 can provide maximum brake boost; The degree of vacuum that vacuum pump ECU16 among the present invention measures in external atmospheric pressure and the vacuum reservoir by pressure sensor 10, thereby obtain relative pressure, control the work of vacuum pump and the degree of vacuum size in the vacuum reservoir according to the size of relative pressure, thereby can under different altitude height, obtain satisfied vacuum servo effect.
Claims (3)
1. vacuum pump braking system for adaptive electric vehicle, it is characterized in that, vacuum booster is installed between brake pedal and the master brake cylinder, and brake pedal is connected with vacuum booster by push rod, and master brake cylinder is connected with front wheel brake oil cylinder and trailing wheel brake cylinder respectively; Vacuum booster, vacuum check valve, vacuum reservoir, vacuum pump and vacuum pump ECU are composed in series the electronlmobil vacuum boosting braking system, and vacuum pump ECU also is connected with pressure sensor and power supply respectively.
2. according to the described a kind of vacuum pump braking system for adaptive electric vehicle of claim 1, it is characterized in that described pressure sensor comprises atmospheric-pressure sensor and vacuum sensor, be used to measure the degree of vacuum in external atmospheric pressure and the vacuum reservoir.
3. according to the described a kind of vacuum pump braking system for adaptive electric vehicle of claim 1, it is characterized in that, the servo vacuum air chamber of described vacuum booster is divided into vacuum chamber and atmosphere chamber by rubber diaphragm, the power-assisted size that can provide vacuum booster depends on the size of the air pressure difference between vacuum chamber and the atmosphere chamber, when the pressure of atmosphere chamber reached external atmosphere pressure, vacuum booster provided maximum brake boost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010226766 CN101885330A (en) | 2010-07-14 | 2010-07-14 | Vacuum pump braking system for adaptive electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010226766 CN101885330A (en) | 2010-07-14 | 2010-07-14 | Vacuum pump braking system for adaptive electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101885330A true CN101885330A (en) | 2010-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010226766 Pending CN101885330A (en) | 2010-07-14 | 2010-07-14 | Vacuum pump braking system for adaptive electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101885330A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102717791A (en) * | 2012-06-14 | 2012-10-10 | 浙江师范大学 | Auxiliary braking system |
| CN104018911A (en) * | 2013-03-01 | 2014-09-03 | 通用汽车环球科技运作有限责任公司 | Positive crankcase ventilation system |
| CN105966382A (en) * | 2016-05-03 | 2016-09-28 | 北京新能源汽车股份有限公司 | Electric vehicle, as well as method and device for estimating sea level elevation of environment around electric vehicle |
| 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 |
| CN113734127A (en) * | 2021-09-27 | 2021-12-03 | 广西宁达汽车科技有限公司 | Plateau control method for vacuum system of new energy electric vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09267739A (en) * | 1996-04-03 | 1997-10-14 | Toyota Motor Corp | Vacuum booster |
| JPH1191546A (en) * | 1997-09-24 | 1999-04-06 | Tokico Ltd | Brake device |
| JP2000142371A (en) * | 1998-11-13 | 2000-05-23 | Bosch Braking Systems Co Ltd | Fluid pressure booster and brake system using it |
| CN1359819A (en) * | 2000-12-20 | 2002-07-24 | 日信工业株式会社 | Vacuum booster |
| CN2759872Y (en) * | 2004-12-13 | 2006-02-22 | 万向钱潮股份有限公司 | Vacuum power-assisted brake apparatus of electric automobile |
| CN2880613Y (en) * | 2005-12-28 | 2007-03-21 | 比亚迪股份有限公司 | Brake vacuum booster for electric automobile |
| CN201442578U (en) * | 2009-04-24 | 2010-04-28 | 枣庄市高晟实业公司 | Vacuum servo braking system of electric automobile |
| CN201721440U (en) * | 2010-07-14 | 2011-01-26 | 清华大学 | Vacuum pump brake system for self-adaptive electric vehicle |
-
2010
- 2010-07-14 CN CN 201010226766 patent/CN101885330A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09267739A (en) * | 1996-04-03 | 1997-10-14 | Toyota Motor Corp | Vacuum booster |
| JPH1191546A (en) * | 1997-09-24 | 1999-04-06 | Tokico Ltd | Brake device |
| JP2000142371A (en) * | 1998-11-13 | 2000-05-23 | Bosch Braking Systems Co Ltd | Fluid pressure booster and brake system using it |
| CN1359819A (en) * | 2000-12-20 | 2002-07-24 | 日信工业株式会社 | Vacuum booster |
| CN2759872Y (en) * | 2004-12-13 | 2006-02-22 | 万向钱潮股份有限公司 | Vacuum power-assisted brake apparatus of electric automobile |
| CN2880613Y (en) * | 2005-12-28 | 2007-03-21 | 比亚迪股份有限公司 | Brake vacuum booster for electric automobile |
| CN201442578U (en) * | 2009-04-24 | 2010-04-28 | 枣庄市高晟实业公司 | Vacuum servo braking system of electric automobile |
| CN201721440U (en) * | 2010-07-14 | 2011-01-26 | 清华大学 | Vacuum pump brake system for self-adaptive electric vehicle |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102717791A (en) * | 2012-06-14 | 2012-10-10 | 浙江师范大学 | Auxiliary braking system |
| CN102717791B (en) * | 2012-06-14 | 2015-03-04 | 浙江师范大学 | Auxiliary braking system |
| CN104018911A (en) * | 2013-03-01 | 2014-09-03 | 通用汽车环球科技运作有限责任公司 | Positive crankcase ventilation system |
| DE102014102101B4 (en) * | 2013-03-01 | 2021-07-01 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Crankcase ventilation system |
| CN105966382A (en) * | 2016-05-03 | 2016-09-28 | 北京新能源汽车股份有限公司 | Electric vehicle, as well as method and device for estimating sea level elevation of environment around electric vehicle |
| CN105966382B (en) * | 2016-05-03 | 2019-02-22 | 北京新能源汽车股份有限公司 | The height above sea level evaluation method and device of electric car and its local environment |
| 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 |
| CN113734127A (en) * | 2021-09-27 | 2021-12-03 | 广西宁达汽车科技有限公司 | Plateau control method for vacuum system of new energy electric vehicle |
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Application publication date: 20101117 |