CN1785727A - Hydraulic assisted braking system of electric power automobile - Google Patents
Hydraulic assisted braking system of electric power automobile Download PDFInfo
- Publication number
- CN1785727A CN1785727A CN 200410089429 CN200410089429A CN1785727A CN 1785727 A CN1785727 A CN 1785727A CN 200410089429 CN200410089429 CN 200410089429 CN 200410089429 A CN200410089429 A CN 200410089429A CN 1785727 A CN1785727 A CN 1785727A
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- Prior art keywords
- hydraulic
- brake
- control unit
- ecu
- braking
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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.)
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- 239000012530 fluid Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 230000004913 activation Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- Regulating Braking Force (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Elements And Transmission Devices (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The present invention discloses a hydraulic energy assisted braking system of electric automobile. It includes a brake main cylinder, a brake petal mechanism and a pipeline device. It is characterized by that said system also includes a hydraulic energy-assisted body communicated with said brake main cylinder, said brake petal mechanism also includes an angle sensor connected with brake petal turning shaft and an electric control unit connected with said angle sensor, and said pipeline device includes a brake fluid inlet pipe, a brake fluid-returning pipe, a fluid feeding valve and a fluid returning valve.
Description
Technical field
The present invention relates to a kind of automobile hydraulic energy assisted braking system, particularly a kind of hydraulic assisted braking system of electric power automobile.
Background technology
Automobile powered by conventional energy utilizes vacuum booster as brake servo unit usually, mainly utilizes the degree of vacuum at driving engine trunnion place to help the pilot control brake pedal, to reach power-assisted effect.Mate vacuum booster on braking system of electric car, engine negative pressure effect so degree of vacuum are too not little owing to having, and can not reach tangible labour-saving effect.
Summary of the invention
The objective of the invention is to address the above problem, a kind of hydraulic assisted braking system of electric power automobile is provided.
The objective of the invention is by following existing techniques in realizing:
A kind of hydraulic assisted braking system of electric power automobile, comprise a master brake cylinder, a brake treadle mechanism and a pepe installation, native system also comprises a hydraulic booster body that communicates with this master brake cylinder, this brake treadle mechanism also comprise one with a brake pedal turning cylinder bonded assembly angular transducer and an ECU (Electrical Control Unit) that links to each other with this angular transducer, this pepe installation comprises a braking feed tube that is connected on this hydraulic booster body, a braking liquid back pipe that is connected on this hydraulic booster body, a feed liquor valve that is connected with this ECU (Electrical Control Unit) that is arranged on this braking feed tube is arranged on this braking liquid back pipe and time liquid valve that be connected with this ECU (Electrical Control Unit) with one.
Wherein, this angular transducer passes to this ECU (Electrical Control Unit) with the angular signal of the brake pedal of acquisition, and this feed liquor valve opens or cuts out according to the control signal of this ECU (Electrical Control Unit), and this time liquid valve opens or cuts out according to the control signal of this ECU (Electrical Control Unit).
Wherein, this hydraulic booster body comprises that a hydraulic cavities, one are arranged in this hydraulic cavities and boosting piston and a dust boot that is fixed on this hydraulic cavities that link to each other with brake push rod.
Wherein, this braking feed tube links to each other with the energy storage tank of hydraulic power-assist steering system, and this braking liquid back pipe links to each other with the fluid reservoir of this hydraulic power-assist steering system.
Positive progressive effect of the present invention is: at first, make electronlmobil can give up the vacuum brake work-saving device, solved on the electronlmobil and to have made the bad problem of power-assisted effect owing to degree of vacuum is not high, secondly, use the hydraulic coupling that hydraulic power-assist steering system produces, divide a pipeline on brake system, to come, reduced the shared space of system, simultaneously can cost-cutting.
Description of drawings
Fig. 1 is the initial position scheme drawing of one embodiment of the invention.
Fig. 2 is the scheme drawing after the brake pedal of one embodiment of the invention moves.
The specific embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
As shown in Figure 1, a kind of hydraulic assisted braking system of electric power automobile, comprise a master brake cylinder 1, a brake treadle mechanism and a pepe installation, native system also comprises a hydraulic booster body 2 that communicates with this master brake cylinder 1, comprises that a hydraulic cavities 4, one are arranged in this hydraulic cavities 4 and boosting piston 3 and dust boots 5 that are fixed on this hydraulic cavities 4 that link to each other with brake push rod 6;
This brake treadle mechanism also comprise one with a brake pedal turning cylinder bonded assembly angular transducer 9 and an ECU (Electrical Control Unit) 10 that links to each other with this angular transducer 9, this angular transducer 9 can pass to this ECU (Electrical Control Unit) 10 with the angular signal of the brake pedal 7 that obtains;
This pepe installation comprise one be connected braking feed tube 13 on this hydraulic booster body 2, one be connected braking liquid back pipe 14 on this hydraulic booster body 2, one be arranged on this braking feed tube 13 the feed liquor valve 11 that is connected with this ECU (Electrical Control Unit) 10 with one be arranged on this braking liquid back pipe 14 and be connected with this ECU (Electrical Control Unit) 10 return liquid valve 12, this braking feed tube 13 links to each other with the energy storage tank 15 of hydraulic power-assist steering system 17, and this braking liquid back pipe 14 links to each other with the fluid reservoir 16 of this hydraulic power-assist steering system 17.
At initial position, feed liquor valve 11 and time liquid valve 12 all are in normally off, when chaufeur is stepped on brake pedal 7, angular transducer 9 obtains the positive angular signal (signal of brake activation direction) of brake pedal 7, and pass to ECU (Electrical Control Unit) 10, ECU (Electrical Control Unit) 10 is sent signal to feed liquor valve 11, and feed liquor valve 11 is opened.
If sometime, the cireular frequency that ECU (Electrical Control Unit) 10 is judged the angular signal of the brake pedal that obtains from angular transducer 9 is zero, just is the pressure hold mode at this moment, and ECU (Electrical Control Unit) 10 is sent signal at stop feed liquor valve 11.
If it is negative that ECU (Electrical Control Unit) 10 is judged the angular signal of the brake pedal 7 of angular transducer 9 acquisitions, be that chaufeur reduces the pressure that is applied on the brake pedal 7, brake pedal 7 moves to initial position under the effect of pull back spring, ECU (Electrical Control Unit) 10 is just closed feed liquor valve 11, and opens back liquid valve 12.
Claims (4)
1, a kind of hydraulic assisted braking system of electric power automobile, comprise a master brake cylinder, a brake treadle mechanism and a pepe installation, it is characterized in that, native system also comprises a hydraulic booster body that communicates with this master brake cylinder, this brake treadle mechanism also comprise one with a brake pedal turning cylinder bonded assembly angular transducer and an ECU (Electrical Control Unit) that links to each other with this angular transducer, this pepe installation comprises a braking feed tube that is connected on this hydraulic booster body, a braking liquid back pipe that is connected on this hydraulic booster body, a feed liquor valve that is connected with this ECU (Electrical Control Unit) that is arranged on this braking feed tube is arranged on this braking liquid back pipe and time liquid valve that be connected with this ECU (Electrical Control Unit) with one.
2, hydraulic assisted braking system of electric power automobile according to claim 1, it is characterized in that, this angular transducer passes to this ECU (Electrical Control Unit) with the angular signal of the brake pedal of acquisition, this feed liquor valve opens or cuts out according to the control signal of this ECU (Electrical Control Unit), and this time liquid valve opens or cuts out according to the control signal of this ECU (Electrical Control Unit).
3, hydraulic assisted braking system of electric power automobile according to claim 2, it is characterized in that this hydraulic booster body comprises that a hydraulic cavities, one are arranged in this hydraulic cavities and boosting piston and a dust boot that is fixed on this hydraulic cavities that link to each other with brake push rod.
According to claim 1,2 or 3 described hydraulic assisted braking system of electric power automobile, it is characterized in that 4, this braking feed tube links to each other with the energy storage tank of hydraulic power-assist steering system, this braking liquid back pipe links to each other with the fluid reservoir of this hydraulic power-assist steering system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100894299A CN100402354C (en) | 2004-12-10 | 2004-12-10 | Hydraulic assisted braking system of electric power automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100894299A CN100402354C (en) | 2004-12-10 | 2004-12-10 | Hydraulic assisted braking system of electric power automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1785727A true CN1785727A (en) | 2006-06-14 |
| CN100402354C CN100402354C (en) | 2008-07-16 |
Family
ID=36783360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100894299A Expired - Fee Related CN100402354C (en) | 2004-12-10 | 2004-12-10 | Hydraulic assisted braking system of electric power automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100402354C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863269A (en) * | 2010-06-18 | 2010-10-20 | 奇瑞汽车股份有限公司 | Electronic braking pedal |
| CN103738328A (en) * | 2013-12-31 | 2014-04-23 | 合肥德通电驱动系统有限公司 | Brake device for electric vehicle |
| CN106347335A (en) * | 2016-10-11 | 2017-01-25 | 浙江吉利控股集团有限公司 | Assistance system for vehicle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6817681B2 (en) * | 2000-06-20 | 2004-11-16 | Continental Teves Ag & Co., Ohg | Electrohydraulic brake system for motor vehicles |
| DE10232054B4 (en) * | 2002-07-16 | 2004-08-12 | Robert Bosch Gmbh | Hydraulic vehicle brake system and brake actuation unit |
| DE10235373B4 (en) * | 2002-08-02 | 2011-04-07 | Robert Bosch Gmbh | Method for testing a hydraulic vehicle brake system for undissolved gas in the brake fluid |
| KR20040034152A (en) * | 2002-10-21 | 2004-04-28 | 현대자동차주식회사 | Auxiliary brake system in vehicle |
-
2004
- 2004-12-10 CN CNB2004100894299A patent/CN100402354C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863269A (en) * | 2010-06-18 | 2010-10-20 | 奇瑞汽车股份有限公司 | Electronic braking pedal |
| CN103738328A (en) * | 2013-12-31 | 2014-04-23 | 合肥德通电驱动系统有限公司 | Brake device for electric vehicle |
| CN106347335A (en) * | 2016-10-11 | 2017-01-25 | 浙江吉利控股集团有限公司 | Assistance system for vehicle |
| CN106347335B (en) * | 2016-10-11 | 2019-08-30 | 浙江吉利控股集团有限公司 | A kind of force aid system for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100402354C (en) | 2008-07-16 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080716 |
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| CF01 | Termination of patent right due to non-payment of annual fee |