CN102371984A - Vacuum boosting device of electric vehicle - Google Patents
Vacuum boosting device of electric vehicle Download PDFInfo
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- CN102371984A CN102371984A CN201110250569XA CN201110250569A CN102371984A CN 102371984 A CN102371984 A CN 102371984A CN 201110250569X A CN201110250569X A CN 201110250569XA CN 201110250569 A CN201110250569 A CN 201110250569A CN 102371984 A CN102371984 A CN 102371984A
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Abstract
The invention discloses a vacuum boosting device of an electric vehicle. The vacuum assisting device comprises a braking pedal, a vacuum booster, a brake main cylinder, an electric vacuum pump, a vacuum energy accumulator and an electronic control device; the brake main cylinder is connected with the brake pedal through the vacuum booster and the vacuum booster is also connected with the vacuum energy accumulator and the electric vacuum pump; the electric vacuum pump is electrically connected with the electronic control device and the electronic control device is also connected with a vacuum pressure sensor and an atmosphere pressure sensor; the vacuum pressure sensor is installed on the vacuum energy accumulator and the atmosphere pressure sensor is connected with the outside air. The vacuum degree in the vacuum energy accumulator is measured by using the vacuum pressure sensor and the outside atmosphere pressure is measured by using the atmosphere pressure sensor; after the vacuum degree and the outside atmosphere pressure are measured, sensor signals are sent to the electronic control device and actions of the electric vacuum pump are adjusted and controlled through comparing the sensor signals by the electronic control device, so that the boosting device can be used in areas with low altitudes and also can be normally used in areas with high altitudes.
Description
Technical field
The present invention relates to a kind of vacuum booster unit, be specifically related to a kind of battery-driven car vacuum booster unit.
Background technology
At present, on orthodox car, basically all be equipped with brake booster, particularly on medium and small discharge capacity vehicle, generally used vacuum booster brake device.For gasoline engine car; It is the difference of pressure that in induction maniflod, produces when utilizing engine operation between degree of vacuum and the bar pressure; Be the piston that the difference of pressure of vacuum booster interior diaphragm both sides helps promote master brake cylinder, alleviate the brake pedal force of chaufeur.For diesel-engined vehicle, generally adopt diesel motor to drive vacuum pump through belt in the running and produce the vacuum servo effect.For electronlmobil, because electrical motor itself can't produce negative pressure of vacuum; And the rotating speed of drive motor also is zero when vehicle parking; Even hybrid vehicle, from the consideration of energy-conserving and environment-protective, driving engine also can quit work when the vehicle temporary term stop.Electronlmobil (comprising mixed power electric car) can't be through drive motor in the dynamic assembly or the continuous vacuum source reliably and with long-term of engine producing; Therefore need on electronlmobil, set up electric vacuum pump; If but electric vacuum pump uninterrupted duty in automotive operation; Then flogging a dead horse, causing energy dissipation in a lot of times.
Prior electric car vacuum booster unit mainly passes through vacuum checking device; The control electric vacuum pump is worked in fixing vacuum pressure scope; This battery-driven car vacuum booster unit only is applicable to traveling automobile in FX, and is then inapplicable to the vehicle that travels on Different Altitude Regions.For example the regional bar pressure in China Qinghai-Tibet Platean only is equivalent to 50 ~ 70% of Plain.At region of no relief vacuum booster pump in proper working order, work then can too frequently cause descend problems such as noise increase service life owing to using in the highlands.
Summary of the invention
To the deficiency of prior art, the object of the present invention is to provide a kind of later-model battery-driven car vacuum booster unit, this device promptly can use in the low altitude area, also can normally use at high altitude region.
For realizing above-mentioned purpose; The invention provides a kind of battery-driven car vacuum booster unit; Comprise brake pedal, vacuum booster, master brake cylinder, electric vacuum pump, vacuum accumulator device, electronic control package, master brake cylinder is connected with brake pedal through vacuum booster, also is connected with vacuum accumulator device and electric vacuum pump on the described vacuum booster; Described electric vacuum pump is electrically connected with electronic control package; Be connected with vacuum pressure sensor and atmospheric-pressure sensor on the described electronic control package, described vacuum pressure sensor is loaded on the vacuum accumulator device, and described atmospheric-pressure sensor is connected with outside air.
The present invention can further be set between electric vacuum pump and the vacuum booster and vacuum accumulator device and vacuum booster between all be connected through vacuum line.
The invention has the beneficial effects as follows: adopt said structure, measure the degree of vacuum in the vacuum accumulator device, measure outside atmospheric pressure by atmospheric-pressure sensor by vacuum pressure sensor; After the measurement, these sensor signals are delivered on the electronic control package, by electronic control package through relatively adjusting and control the action of electric vacuum pump; Through the outside atmospheric pressure of measuring, can also calculate under the prerequisite that guarantees automobile brake perfrmance the accessible degree of vacuum of electric vacuum pump normal operation; Again revise the pressure interval range of Motorized vacuum pump work with this; To guarantee at high altitude region, reduce the electric vacuum pump energy consumption, improve system reliability; Utilize the working ability of electric vacuum pump in the low altitude area again to greatest extent, reduce system cost.
Description of drawings
Fig. 1 is a structural principle block diagram of the present invention;
Fig. 2 is a structural representation of the present invention.
The specific embodiment
Provided a kind of battery-driven car vacuum booster unit like Fig. 1, shown in 2; Comprise brake pedal 1, vacuum booster 2, master brake cylinder 3, electric vacuum pump 4, vacuum accumulator device 5, electronic control package 6; Master brake cylinder 3 is connected with brake pedal 1 through vacuum booster 2; All be connected between electric vacuum pump 4 and the vacuum booster 2 and between vacuum accumulator device 5 and the vacuum booster 2 through vacuum line; Described electric vacuum pump 4 is electrically connected with electronic control package 6; Be connected with vacuum pressure sensor 7 and atmospheric-pressure sensor 8 on the described electronic control package 6, described vacuum pressure sensor 7 is loaded on the vacuum accumulator device 5, and described atmospheric-pressure sensor 8 is connected with outside air.
Adopt said structure,, measure outside atmospheric pressure by atmospheric-pressure sensor 8 by the degree of vacuum that vacuum pressure sensor 7 is measured in the vacuum accumulator device 5; After the measurement, these sensor signals are delivered on the electronic control package 6, by electronic control package 6 through relatively adjusting and control the action of electric vacuum pump 4; Through the outside atmospheric pressure of measuring, can also calculate under the prerequisite that guarantees automobile brake perfrmance the accessible degree of vacuum of electric vacuum pump 4 normal operation; Again revise the pressure interval range of electric vacuum pump 4 work with this; To guarantee at high altitude region, reduce electric vacuum pump 4 energy consumptions, improve system reliability; Utilize the working ability of electric vacuum pump 4 in the low altitude area again to greatest extent, reduce system cost.
Certainly protection scope of the present invention is not limited to the foregoing description; Any unsubstantiality that the present invention has been done changes; All should fall in protection scope of the present invention; Pattern like electronic control package 6 can be for multiple, and being electrically connected between electronic control package 6 and vacuum pressure sensor 7, the atmospheric-pressure sensor 8 etc. can be direct or indirect, and is that electric connection mode each other can adopt simulation or numeral.
Claims (2)
1. battery-driven car vacuum booster unit; It is characterized in that: comprise brake pedal, vacuum booster, master brake cylinder, electric vacuum pump, vacuum accumulator device, electronic control package; Master brake cylinder is connected with brake pedal through vacuum booster; Also be connected with vacuum accumulator device and electric vacuum pump on the described vacuum booster, described electric vacuum pump is electrically connected with electronic control package, is connected with vacuum pressure sensor and atmospheric-pressure sensor on the described electronic control package; Described vacuum pressure sensor is loaded on the vacuum accumulator device, and described atmospheric-pressure sensor is connected with outside air.
2. battery-driven car vacuum booster unit according to claim 1 is characterized in that: all be connected through vacuum line between electric vacuum pump and the vacuum booster and between vacuum accumulator device and the vacuum booster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110250569XA CN102371984A (en) | 2011-08-29 | 2011-08-29 | Vacuum boosting device of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110250569XA CN102371984A (en) | 2011-08-29 | 2011-08-29 | Vacuum boosting device of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102371984A true CN102371984A (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110250569XA Pending CN102371984A (en) | 2011-08-29 | 2011-08-29 | Vacuum boosting device of electric vehicle |
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| CN (1) | CN102371984A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350693A (en) * | 2013-07-26 | 2013-10-16 | 重庆长安汽车股份有限公司 | Method for improving brake vacuum degree |
| CN103723137A (en) * | 2013-12-30 | 2014-04-16 | 重庆长安铃木汽车有限公司 | Brake assisting power control method for electric vehicle |
| CN104149766A (en) * | 2014-07-31 | 2014-11-19 | 广汽菲亚特汽车有限公司 | Working condition based method and device for adjusting electronic vacuum pumps of automobile brake system |
| CN104442774A (en) * | 2014-12-03 | 2015-03-25 | 吉林东光奥威汽车制动系统有限公司 | Vacuum braking boosting system |
| CN104842987A (en) * | 2015-04-01 | 2015-08-19 | 北京新能源汽车股份有限公司 | Vacuum booster system of electric automobile and pressure measurement method of system |
| CN105235669A (en) * | 2015-10-30 | 2016-01-13 | 北京新能源汽车股份有限公司 | Braking assistance control system, control method thereof and vehicle |
| CN105398436A (en) * | 2015-12-30 | 2016-03-16 | 北京新能源汽车股份有限公司 | Assist brake system of vehicle and vehicle provided with same |
| CN105539409A (en) * | 2015-11-30 | 2016-05-04 | 北京新能源汽车股份有限公司 | Brake booster system for vehicle and vehicle with brake booster system |
| CN105636848A (en) * | 2013-10-21 | 2016-06-01 | 雷诺股份公司 | Management of the differential pressure thresholds of a vacuum pump connected to the braking system of a motor vehicle |
| 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 |
| CN111731246A (en) * | 2020-06-12 | 2020-10-02 | 中国重汽集团济南动力有限公司 | Air compressor control system and method based on altitude self-adaption |
| FR3102440A1 (en) * | 2019-10-25 | 2021-04-30 | Psa Automobiles Sa | CONTROL PROCESS OF A BRAKING ASSIST DEVICE |
| CN113335250A (en) * | 2019-12-11 | 2021-09-03 | 株式会社韩中Ncs | Vacuum pressure control method of vehicle vacuum booster based on height |
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| CN201932148U (en) * | 2011-01-28 | 2011-08-17 | 华南理工大学 | Electric vehicle vacuum boosting device based on absolute pressure sensor |
| CN201932147U (en) * | 2011-01-28 | 2011-08-17 | 华南理工大学 | Vacuum power assisting device for electric automobile |
| CN202175035U (en) * | 2011-08-29 | 2012-03-28 | 温州大学 | Vacuum boosting device for electric vehicle |
-
2011
- 2011-08-29 CN CN201110250569XA patent/CN102371984A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE19517604A1 (en) * | 1994-05-25 | 1995-11-30 | Volkswagen Ag | Vehicle brake unit |
| EP1167149A2 (en) * | 2000-06-23 | 2002-01-02 | Delphi Technologies, Inc. | Self contained, supplemental vacuum assist unit for vehicule brake booster |
| KR20050006867A (en) * | 2003-07-10 | 2005-01-17 | 현대자동차주식회사 | Apparatus for Supporting Vacuum Booster of Automobile Brake |
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| CN101357630A (en) * | 2007-07-30 | 2009-02-04 | 比亚迪股份有限公司 | Brake vacuum booster device for electric automobile and control method thereof |
| CN201457356U (en) * | 2009-05-07 | 2010-05-12 | 纽贝耳汽车(杭州)有限公司 | Vacuum booster braking system for electric vehicles |
| CN201670225U (en) * | 2010-05-21 | 2010-12-15 | 天津清源电动车辆有限责任公司 | Control module, brake vacuum boosting device and electric automobile |
| CN201932148U (en) * | 2011-01-28 | 2011-08-17 | 华南理工大学 | Electric vehicle vacuum boosting device based on absolute pressure sensor |
| CN201932147U (en) * | 2011-01-28 | 2011-08-17 | 华南理工大学 | Vacuum power assisting device for electric automobile |
| CN202175035U (en) * | 2011-08-29 | 2012-03-28 | 温州大学 | Vacuum boosting device for electric vehicle |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350693A (en) * | 2013-07-26 | 2013-10-16 | 重庆长安汽车股份有限公司 | Method for improving brake vacuum degree |
| CN105636848A (en) * | 2013-10-21 | 2016-06-01 | 雷诺股份公司 | Management of the differential pressure thresholds of a vacuum pump connected to the braking system of a motor vehicle |
| CN105636848B (en) * | 2013-10-23 | 2019-07-09 | 雷诺股份公司 | Management to the differential pressure threshold value of the vacuum pump for the braking system for being connected to motor vehicles |
| CN103723137A (en) * | 2013-12-30 | 2014-04-16 | 重庆长安铃木汽车有限公司 | Brake assisting power control method for electric vehicle |
| CN104149766A (en) * | 2014-07-31 | 2014-11-19 | 广汽菲亚特汽车有限公司 | Working condition based method and device for adjusting electronic vacuum pumps of automobile brake system |
| CN104442774A (en) * | 2014-12-03 | 2015-03-25 | 吉林东光奥威汽车制动系统有限公司 | Vacuum braking boosting system |
| CN104842987A (en) * | 2015-04-01 | 2015-08-19 | 北京新能源汽车股份有限公司 | Vacuum booster system of electric automobile and pressure measurement method of system |
| CN105235669A (en) * | 2015-10-30 | 2016-01-13 | 北京新能源汽车股份有限公司 | Braking assistance control system, control method thereof and vehicle |
| CN105539409B (en) * | 2015-11-30 | 2018-07-17 | 北京新能源汽车股份有限公司 | The force aid system for braking of vehicle and vehicle with it |
| CN105539409A (en) * | 2015-11-30 | 2016-05-04 | 北京新能源汽车股份有限公司 | Brake booster system for vehicle and vehicle with brake booster system |
| CN105398436A (en) * | 2015-12-30 | 2016-03-16 | 北京新能源汽车股份有限公司 | Assist brake system of vehicle and vehicle provided with same |
| 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 |
| 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 |
| FR3102440A1 (en) * | 2019-10-25 | 2021-04-30 | Psa Automobiles Sa | CONTROL PROCESS OF A BRAKING ASSIST DEVICE |
| CN113335250A (en) * | 2019-12-11 | 2021-09-03 | 株式会社韩中Ncs | Vacuum pressure control method of vehicle vacuum booster based on height |
| CN111731246A (en) * | 2020-06-12 | 2020-10-02 | 中国重汽集团济南动力有限公司 | Air compressor control system and method based on altitude self-adaption |
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Application publication date: 20120314 |
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