CN102069787A - Pipeline structure of vacuum power-assisted system of electric vehicle - Google Patents
Pipeline structure of vacuum power-assisted system of electric vehicle Download PDFInfo
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- CN102069787A CN102069787A CN 201010596085 CN201010596085A CN102069787A CN 102069787 A CN102069787 A CN 102069787A CN 201010596085 CN201010596085 CN 201010596085 CN 201010596085 A CN201010596085 A CN 201010596085A CN 102069787 A CN102069787 A CN 102069787A
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- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a pipeline structure of a vacuum power-assisted system of an electric vehicle. The pipeline structure comprises a vacuum booster, a vacuum pump, a vacuum tank, a pressure sensor, vacuum tubes, a two-way check valve and a three-way check valve; one side of the vacuum booster is connected with a vehicle brake pedal, and the other side of the vacuum booster is connected with the way I of the three-way check valve through the vacuum tube; one side of the vacuum tank is connected with the pressure sensor, and the other side of the vacuum tank is connected with the way II of the three-way check valve through the vacuum tube; and the way I of the two-way check valve is connected with the way III of the three-way check valve through the vacuum tube, and the way II of the two-way check valve is connected with the vacuum pump through the vacuum tube. Because the two-way check valve and the three-way check valve are arranged in a vacuum system pipeline, if the vacuum pump or the vacuum tank has vacuum leakage, the two-way check valve and the three-way check valve play a role in blocking the vacuum leakage to other parts. The pipeline structure for braking during running can still keep certain vacuum degree, play a role in braking safety and ensure the braking reliability.
Description
Technical field
The invention belongs to the electronlmobil field, particularly a kind of electronlmobil vacuum servo system pipeline structure.
Background technology
The vacuum that tradition fuel vehicle vacuum servo system mainly relies on the engine intake manifold place to produce by vacuum booster, finally obtains less treadle effort.And, provide vacuum, thereby play vacuum-assisted effect so need to increase in addition a cover electric vacuum booster system because the drive motor that adopts on the electronlmobil can't provide vacuum source.For the electric vacuum booster system, not reveal be to need the problem that solves emphatically to degree of vacuum in the vacuum servo system that guarantee to increase, and the vacuum system pipeline structure is the key of degree of vacuum in the assurance vacuum servo system.
Summary of the invention
The object of the present invention is to provide a kind of electronlmobil vacuum servo system pipeline structure that can effectively guarantee degree of vacuum in the system.
To achieve these goals, the technical solution used in the present invention is:
Described this electronlmobil vacuum servo system pipeline structure comprises vacuum booster, vacuum pump, vacuum reservoir, pressure sensor, vacuum lamp, two logical check valve and threeway check valves.
Described two logical check valves have two passages, are divided into passage one and passage two.
Described threeway check valve has three passages, is divided into passage one, passage two and passage three.
Described vacuum booster one side is marked time with automobile brake and is connected, and opposite side is connected with the passage one of described threeway check valve by vacuum lamp.
Described vacuum reservoir one side is connected with pressure sensor, and opposite side is connected with the passage two of described threeway check valve by vacuum lamp.Described pressure sensor is connected with car load ECU.Described pressure sensor is used to detect the system vacuum degree in the vacuum reservoir, and the data that record are fed back to car load ECU.
The passage one of described two logical check valves is connected with the passage three of described threeway check valve by vacuum lamp.
The passage two of described two logical check valves is connected with described vacuum pump by vacuum lamp.
Described vacuum pump is used for extraction system in-to-in air, thereby guarantees the degree of vacuum of vacuum servo internal system.Described vacuum pump is controlled by car load ECU.
When car brakeing or Reduced Speed Now, when chaufeur is stepped on brake pedal, the vacuum that vacuum booster will work and consumption systems is interior.At this moment, vacuum in vacuum lamp and the vacuum reservoir flows to vacuum booster by the threeway check valve, degree of vacuum descends in the system, when degree of vacuum drops to the vacuum ranges that car load ECU sets, described pressure sensor sends a signal to car load ECU, car load ECU will send instruction to described vacuum pump, vacuum pump work, and the air in vacuum booster, the vacuum reservoir is discharged in the atmosphere by vacuum pump through vacuum lamp.Rebulid degree of vacuum in the system.
Internal system degree of vacuum when described two logical check valves and threeway check valve are used to guarantee described vacuum pump and vacuum reservoir leakage.Generally two logical check valves and threeway check valve are in open mode, when vacuum pump is revealed, lead to vacuum reservoir and vacuum booster but close two logical check valve secluding airs, when vacuum reservoir is revealed, lead to vacuum booster but close threeway check valve secluding air.
The invention has the advantages that: described this electronlmobil vacuum servo system pipeline structure, piping layout is reasonable, and it is installed on two logical check valves and threeway check valve in the vacuum system pipeline, and it can play the effect of piece-rate system each several part.If vacuum pump or vacuum reservoir end have vacuum leak to occur, two logical check valves and threeway check valve play a part to cut off degree of vacuum and leak to other parts of system.The present invention brakes when driving, still can keep certain degree of vacuum, can play brake safe, guarantees the reliability of braking.
Description of drawings
Below the content of Figure of description expression of the present invention and the mark among the figure are made brief description:
Fig. 1 is described electronlmobil vacuum servo system pipeline structural representation;
Mark among the above-mentioned figure is:
1, automobile brake is marked time, and 2, vacuum booster, 3, the threeway check valve, 4, vacuum pump, 5, two logical check valves, 6, pressure sensor, 7, vacuum reservoir, 8, vacuum lamp.
The specific embodiment
Contrast accompanying drawing below, by description to embodiment, to the effect of the mutual alignment between the specific embodiment of the present invention such as the related each several part and annexation, each several part and principle of work etc., be described in further detail, design of the present invention, technical scheme had more complete, accurate and deep understanding to help those skilled in the art.
Described this electronlmobil vacuum servo system pipeline structure comprises vacuum booster 2, vacuum pump 4, vacuum reservoir 7, pressure sensor 6, vacuum lamp 8, two logical check valve 5 and threeway check valves 3.
Described two logical check valves 5 have two passages, are divided into passage one and passage two.
Described threeway check valve 3 has three passages, is divided into passage one, passage two and passage three.
Described vacuum booster one side and automobile brake are marked time and 1 are connected, and opposite side is connected with the passage one of described threeway check valve 3 by vacuum lamp 8.
Described vacuum reservoir 7 one sides are connected with pressure sensor 6, and opposite side is connected with the passage two of described threeway check valve 3 by vacuum lamp 8.Described pressure sensor 6 is connected with car load ECU.Described pressure sensor 6 is used to detect the system vacuum degree in the vacuum reservoir 7, and the data that record are fed back to car load ECU.
The passage one of described two logical check valves 5 is connected with the passage three of described threeway check valve 3 by vacuum lamp 8.
The passage two of described two logical check valves 5 is connected with described vacuum pump 4 by vacuum lamp 8.
Described vacuum pump 4 is used for extraction system in-to-in air, thereby guarantees the degree of vacuum of vacuum servo internal system.Described vacuum pump 4 is controlled by car load ECU.
Principle of work of the present invention is: when car brakeing or Reduced Speed Now, and when chaufeur is stepped on automobile brake pedal 1, the vacuum that vacuum booster 2 will work and consumption systems is interior.At this moment, the vacuum in vacuum lamp 8 and the vacuum reservoir 7 flows to vacuum booster 2 by threeway check valve 3, and degree of vacuum descends in the system, and 6 pairs of intrasystem degree of vacuum of described pressure sensor detect; When vacuum ranges that detected value sets less than car load ECU, described pressure sensor 6 sends a signal to car load ECU, car load ECU will send instruction to described vacuum pump 4, vacuum pump 4 work, and the air in vacuum booster 2, the vacuum reservoir 7 is discharged in the atmosphere by vacuum pump 4 through vacuum lamp 8.Rebulid degree of vacuum in the system.
Internal system degree of vacuum when described two logical check valves 5 and threeway check valve 3 are used to guarantee described vacuum pump 4 and vacuum reservoir 7 leakages.Generally two logical check valves 5 and threeway check valve 3 are in open mode, when vacuum pump 4 is revealed, lead to vacuum reservoir 7 and vacuum booster 2 but close two logical check valve 5 secluding airs, when vacuum reservoir 7 is revealed, lead to vacuum booster 2 but close threeway check valve 3 secluding airs.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (4)
1. an electronlmobil vacuum servo system pipeline structure is characterized in that: comprise vacuum booster (2), vacuum pump (4), vacuum reservoir (7), pressure sensor (6), vacuum lamp (8), two logical check valve (5) and threeway check valves (3); Described vacuum booster one side mark time with automobile brake (1) be connected, opposite side is connected with the passage one of described threeway check valve (3) by vacuum lamp (8); Described vacuum reservoir (7) one sides are connected with pressure sensor (6), and opposite side is connected with the passage two of described threeway check valve (3) by vacuum lamp (8); The passage one of described two logical check valves (5) is connected with the passage three of described threeway check valve (3) by vacuum lamp (8), and the passage two of described two logical check valves (5) is connected with described vacuum pump (4) by vacuum lamp (8).
2. according to the described electronlmobil vacuum servo of claim 1 system pipeline structure, it is characterized in that: described pressure sensor (6) is connected with car load ECU.
3. according to claim 1 or 2 described electronlmobil vacuum servo system pipeline structures, it is characterized in that: described pressure sensor (6) is used to detect the interior system vacuum degree of vacuum reservoir (7) and the data that record is fed back to car load ECU.
4. according to the described electronlmobil vacuum servo of claim 3 system pipeline structure, it is characterized in that: described vacuum pump (4) is controlled by car load ECU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010596085 CN102069787A (en) | 2010-12-20 | 2010-12-20 | Pipeline structure of vacuum power-assisted system of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010596085 CN102069787A (en) | 2010-12-20 | 2010-12-20 | Pipeline structure of vacuum power-assisted system of electric vehicle |
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| CN102069787A true CN102069787A (en) | 2011-05-25 |
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| CN 201010596085 Pending CN102069787A (en) | 2010-12-20 | 2010-12-20 | Pipeline structure of vacuum power-assisted system of electric vehicle |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107472227A (en) * | 2017-06-09 | 2017-12-15 | 宝沃汽车（中国）有限公司 | Brake vacuum force aid system, control method and vehicle |
| DE102016218660A1 (en) | 2016-09-28 | 2018-03-29 | Ford Global Technologies, Llc | Method for fault diagnosis of a vacuum 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 |
| CN109532807A (en) * | 2018-12-29 | 2019-03-29 | 北京汽车股份有限公司 | Vacuum boost system, the control method of vacuum boost system and vehicle |
| US10493974B2 (en) | 2016-09-28 | 2019-12-03 | Ford Global Technologies, Llc | Method for diagnosing fault in a vacuum system including a check valve |
| CN111452770A (en) * | 2020-03-04 | 2020-07-28 | 浙江吉利新能源商用车集团有限公司 | Vehicle braking vacuum boosting system, control system and method |
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| KR20060006436A (en) * | 2004-07-16 | 2006-01-19 | 현대자동차주식회사 | Braking control device of electric vehicle |
| FR2896748A1 (en) * | 2006-01-30 | 2007-08-03 | Peugeot Citroen Automobiles Sa | Motor vehicle power-assisted braking system has air duct with shutoff unit to connect or separate low-pressure chamber and vacuum pump |
| CN2936861Y (en) * | 2006-06-15 | 2007-08-22 | 比亚迪股份有限公司 | Electric vehicle vacuum power brake device |
| CN201304987Y (en) * | 2008-11-26 | 2009-09-09 | 扬州飞驰动力科技有限公司 | Vacuum boost braking system for pure electric car |
| CN101695924A (en) * | 2009-10-21 | 2010-04-21 | 深圳市陆地方舟电动车有限公司 | Electric power assisting brake auxiliary system of electric car |
| DE102008051851A1 (en) * | 2008-10-17 | 2010-04-29 | Bayerische Motoren Werke Aktiengesellschaft | Operating method for vacuum brake booster of vehicle, involves connecting vacuum pump with vacuum chamber, where vacuum pump is formed vacuum source |
| 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 |
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2010
- 2010-12-20 CN CN 201010596085 patent/CN102069787A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060006436A (en) * | 2004-07-16 | 2006-01-19 | 현대자동차주식회사 | Braking control device of electric vehicle |
| FR2896748A1 (en) * | 2006-01-30 | 2007-08-03 | Peugeot Citroen Automobiles Sa | Motor vehicle power-assisted braking system has air duct with shutoff unit to connect or separate low-pressure chamber and vacuum pump |
| CN2936861Y (en) * | 2006-06-15 | 2007-08-22 | 比亚迪股份有限公司 | Electric vehicle vacuum power brake device |
| DE102008051851A1 (en) * | 2008-10-17 | 2010-04-29 | Bayerische Motoren Werke Aktiengesellschaft | Operating method for vacuum brake booster of vehicle, involves connecting vacuum pump with vacuum chamber, where vacuum pump is formed vacuum source |
| CN201304987Y (en) * | 2008-11-26 | 2009-09-09 | 扬州飞驰动力科技有限公司 | Vacuum boost braking system for pure electric car |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| DE102016218660A1 (en) | 2016-09-28 | 2018-03-29 | Ford Global Technologies, Llc | Method for fault diagnosis of a vacuum system |
| US10493974B2 (en) | 2016-09-28 | 2019-12-03 | Ford Global Technologies, Llc | Method for diagnosing fault in a vacuum system including a check valve |
| CN107472227A (en) * | 2017-06-09 | 2017-12-15 | 宝沃汽车（中国）有限公司 | Brake vacuum force aid system, control method and vehicle |
| CN107472227B (en) * | 2017-06-09 | 2020-03-24 | 宝沃汽车（中国）有限公司 | Brake vacuum boosting system, control method and vehicle |
| 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 |
| CN109532807A (en) * | 2018-12-29 | 2019-03-29 | 北京汽车股份有限公司 | Vacuum boost system, the control method of vacuum boost system and vehicle |
| CN111452770A (en) * | 2020-03-04 | 2020-07-28 | 浙江吉利新能源商用车集团有限公司 | Vehicle braking vacuum boosting system, control system and method |
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Application publication date: 20110525 |
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