CN201721440U - Vacuum pump brake system for self-adaptive electric vehicle - Google Patents
Vacuum pump brake system for self-adaptive electric vehicle Download PDFInfo
- Publication number
- CN201721440U CN201721440U CN2010202582555U CN201020258255U CN201721440U CN 201721440 U CN201721440 U CN 201721440U CN 2010202582555 U CN2010202582555 U CN 2010202582555U CN 201020258255 U CN201020258255 U CN 201020258255U CN 201721440 U CN201721440 U CN 201721440U
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- vacuum
- vacuum pump
- electric vehicle
- brake
- booster
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- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The utility model belongs to the field of brake technology of an electric vehicle, and particularly relates to a vacuum pump brake system for a self-adaptive electric vehicle. A vacuum booster of the brake system is installed between a brake pedal and a main brake cylinder; the brake pedal is connected with the vacuum booster by a push rod; the main brake cylinder is respectively connected with a front wheel brake oil cylinder and a rear wheel brake oil cylinder; the vacuum boost brake system of the electric vehicle is formed by the vacuum booster, a vacuum one-way valve, a vacuum tank, a vacuum pump, a vacuum pump ECU and the like which are connected in series; and the vacuum pump ECU is also respectively connected with a pressure sensor and a power supply. The utility model improves the existing vacuum boost brake system of the electric vehicle, and improves the stability and the environmental adaptation of the vacuum boost brake system of the electric vehicle.
Description
Technical field
The utility model belongs to electronlmobil braking technology field, particularly is 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 utility model mainly is that existing electronlmobil vacuum boosting braking system is improved, and improves the stability and the compatible with environment of electronlmobil vacuum boosting braking system.
Summary of the invention
The purpose of this utility model is the deficiency of the influence that is subjected to sea level elevation of the work at existing electronlmobil vacuum boosting braking system and a kind of vacuum pump braking system for adaptive electric vehicle is provided, 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 beneficial effects of the utility model are that existing electronlmobil vacuum boosting braking system is improved, and 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 utility model provides a kind of vacuum pump braking system for adaptive electric vehicle.Below in conjunction with accompanying drawing the utility model 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202582555U CN201721440U (en) | 2010-07-14 | 2010-07-14 | Vacuum pump brake system for self-adaptive electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202582555U CN201721440U (en) | 2010-07-14 | 2010-07-14 | Vacuum pump brake system for self-adaptive electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201721440U true CN201721440U (en) | 2011-01-26 |
Family
ID=43489738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202582555U Expired - Lifetime CN201721440U (en) | 2010-07-14 | 2010-07-14 | Vacuum pump brake system for self-adaptive electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201721440U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885330A (en) * | 2010-07-14 | 2010-11-17 | 清华大学 | Vacuum pump braking system for adaptive electric vehicle |
| CN103085796A (en) * | 2011-11-02 | 2013-05-08 | 财团法人车辆研究测试中心 | Brake power-assisting source system with brake kinetic energy recovery and failure protection functions |
| CN103770767A (en) * | 2012-10-22 | 2014-05-07 | 财团法人车辆研究测试中心 | Electronic type vacuum brake power assisting system |
| CN103917423A (en) * | 2011-11-15 | 2014-07-09 | 罗伯特·博世有限公司 | Method and device for activating an electrical vacuum pump for a brake booster of a vehicle |
| CN105035054A (en) * | 2015-06-25 | 2015-11-11 | 奇瑞汽车股份有限公司 | Electro-hydraulic braking system for automobile and method for using electro-hydraulic braking system |
| CN109484387A (en) * | 2018-12-19 | 2019-03-19 | 安徽江淮汽车集团股份有限公司 | A kind of control method and system of vacuum pump of electric automobile |
-
2010
- 2010-07-14 CN CN2010202582555U patent/CN201721440U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885330A (en) * | 2010-07-14 | 2010-11-17 | 清华大学 | Vacuum pump braking system for adaptive electric vehicle |
| CN103085796A (en) * | 2011-11-02 | 2013-05-08 | 财团法人车辆研究测试中心 | Brake power-assisting source system with brake kinetic energy recovery and failure protection functions |
| CN103085796B (en) * | 2011-11-02 | 2014-11-19 | 财团法人车辆研究测试中心 | Brake power-assisting source system with brake kinetic energy recovery and failure protection functions |
| CN103917423A (en) * | 2011-11-15 | 2014-07-09 | 罗伯特·博世有限公司 | Method and device for activating an electrical vacuum pump for a brake booster of a vehicle |
| CN103917423B (en) * | 2011-11-15 | 2016-08-17 | 罗伯特·博世有限公司 | For the method and apparatus triggering the electrovacuum pump of the brake booster for vehicle |
| US9869310B2 (en) | 2011-11-15 | 2018-01-16 | Robert Bosch Gmbh | Method and device for activating an electric vacuum pump for a brake booster of a vehicle |
| CN103770767A (en) * | 2012-10-22 | 2014-05-07 | 财团法人车辆研究测试中心 | Electronic type vacuum brake power assisting system |
| CN103770767B (en) * | 2012-10-22 | 2016-08-10 | 财团法人车辆研究测试中心 | Electronic type vacuum brake force aid system |
| CN105035054A (en) * | 2015-06-25 | 2015-11-11 | 奇瑞汽车股份有限公司 | Electro-hydraulic braking system for automobile and method for using electro-hydraulic braking system |
| CN105035054B (en) * | 2015-06-25 | 2018-08-14 | 奇瑞汽车股份有限公司 | For automobile electro-hydraulic brake system and use its method |
| CN109484387A (en) * | 2018-12-19 | 2019-03-19 | 安徽江淮汽车集团股份有限公司 | A kind of control method and system of vacuum pump of electric automobile |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |