CN109572649B - Electric vacuum pump control device suitable for plateau and plateau areas - Google Patents
Electric vacuum pump control device suitable for plateau and plateau areas Download PDFInfo
- Publication number
- CN109572649B CN109572649B CN201811652592.XA CN201811652592A CN109572649B CN 109572649 B CN109572649 B CN 109572649B CN 201811652592 A CN201811652592 A CN 201811652592A CN 109572649 B CN109572649 B CN 109572649B
- Authority
- CN
- China
- Prior art keywords
- vacuum pump
- cavity
- vacuum
- circuit board
- plateau
- Prior art date
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000741 silica gel Substances 0.000 claims abstract description 8
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 8
- 230000006978 adaptation Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000004134 energy conservation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/02—Arrangements of pumps or compressors, or control devices therefor
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention relates to an electric vacuum pump control device suitable for a plateau and a plain area, which belongs to the field of automobile booster braking systems, wherein one end of a shell is connected with a connector, a cover plate is clamped and connected with the upper part of the shell, a cavity B communicated with a vacuum booster is arranged at the bottom of the shell, a cavity A communicated with the outside of a controller is arranged at the lower part of the shell, a waterproof and breathable film is arranged at a hole part of the cavity A communicated with the outside, a circuit board is fixedly connected with a circuit board seat, the inner end of an electric appliance connecting pin is electrically connected with the circuit board, a first absolute vacuum sensor is fixedly connected with the lower part of the circuit board, a second absolute vacuum sensor is fixedly connected with the lower part of the circuit board, and a second silica gel sealing gasket is arranged between the cavity B and the second absolute vacuum sensor. The electric vacuum pump control device has the advantages of being novel in structure, being an electric vacuum pump control device suitable for plateaus and plain areas, being capable of accurately controlling the vacuum pump in the plateaus and the plateau areas and improving the braking reliability and the comfort.
Description
Technical Field
The invention belongs to the field of automobile power-assisted braking systems, and is suitable for a new energy automobile and an automobile power-assisted system with a small-displacement turbo-charged electric vacuum pump.
Background
Along with the development of the automobile industry, energy conservation and emission reduction become main development directions of automobiles, and electric vehicles, hybrid vehicles and small-displacement turbocharged vehicles become main development objects. The key of energy conservation and emission reduction is to replace new energy as a power source or reduce the engine displacement so as to reduce the exhaust emission, thereby achieving the purposes of energy conservation and emission reduction. At present, the structure and the layout of an electric vehicle, a hybrid vehicle and a small-displacement turbo-charged vehicle are changed, the structure and the performance of an automobile brake booster system are affected, in order to solve the problem of brake booster, an electric vacuum pump is added to improve the performance of the brake booster system, so that the control of the electric vacuum pump becomes a key technology, particularly the air pressure in a plateau area is reduced, the atmospheric pressure is reduced, the vacuum degree of the electric vehicle and the small-displacement turbo-charged vehicle is reduced, the brake performance is reduced, at the moment, the vacuum pump is required to be controlled to work by a vacuum pump controller, the vacuum degree is improved for the vacuum booster system, the performance of the vacuum booster system is increased, and the brake performance and the brake pedal feel are improved, so that the vacuum pump controller becomes a key technology.
At present, a vacuum degree sensor is adopted for detecting the vacuum degree, the vacuum degree and the external air pressure cannot be simultaneously detected, the controller structure is easy to cause the vacuum pump to burn out or the brake foot is hard to sense partial pressure in a plateau area, so that the brake performance is reduced, for example, the differential pressure type vacuum degree sensor is reduced in the braking performance in the plateau area, the brake foot is hard, and the pressure insulation type vacuum sensor is easy to burn out the vacuum pump in the plateau area.
Disclosure of Invention
The invention provides an electric vacuum pump control device suitable for a plateau and a plateau area, which solves the problem that the vacuum pump is burnt out or brake foot is hard and the braking performance is reduced because whether the electric vacuum pump control device is in the plateau area or the plateau area cannot be judged at present.
The technical scheme adopted by the invention is as follows: one end of the shell is connected with the connector, the cover plate is clamped with the upper part of the shell, the bottom of the shell is provided with a cavity B communicated with the vacuum booster, the lower part of the shell is provided with a cavity A communicated with the outside of the controller, the cavity A is not communicated with the cavity B, a waterproof and breathable film is arranged at a hole of the cavity A communicated with the outside, a fixed waterproof and breathable film clamping seat is clamped with the shell at the hole, so that the waterproof and breathable film is fixed, a circuit board seat is fixedly connected with the bottom surface of the shell, a circuit board is fixedly connected with the circuit board seat, the inner end of an electrical appliance connecting contact pin is electrically connected with the circuit board, the outer end of the electrical appliance connecting contact pin is positioned in the connector, a first insulating vacuum sensor is fixedly connected with the lower part of the circuit board, a first silica gel sealing gasket is arranged between the cavity A and the first insulating vacuum sensor, a second insulating vacuum sensor is fixedly connected with the lower part of the circuit board, and a second silica gel sealing gasket is arranged between the cavity B and the second insulating vacuum sensor.
The electrical appliance connection contact pin comprises a power connection port, a ground connection port, a vacuum pump positive electrode interface and a vacuum pump negative electrode interface.
The invention has the advantages that the structure is novel, the vacuum absolute pressure sensor is used for measuring the external atmospheric pressure to identify whether the vacuum pump is on a plateau or on a plain, the vacuum absolute pressure sensor is used for accurately controlling the vacuum pump to start working or stop working, the service life of the vacuum pump is prolonged, the braking performance is increased, the controller or the vacuum pump is prevented from burning out in a plateau area, or the brake foot is hard in sense and the braking performance is reduced, and the vacuum pump control device is an electric vacuum pump control device suitable for the plateau and the plain area, and can realize accurate control of the vacuum pump in the plateau and the plateau area and improve the braking reliability and the braking comfort.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged view of section I of FIG. 1;
fig. 3 is a left side view of fig. 1.
Detailed Description
One end of the shell 11 is connected with the connector 1, the cover plate 3 is clamped with the upper part of the shell 11, a cavity B1102 communicated with the vacuum booster is arranged at the bottom of the shell 11, a cavity A1101 communicated with the outside of the controller is arranged at the lower part of the shell 11, the cavity A1101 and the cavity B1102 are not communicated, a waterproof and breathable film 10 is arranged at a hole 1103 where the cavity A1101 is communicated with the outside, a fixed waterproof and breathable film clamping seat 9 is clamped with the shell 11 at the hole, so that the waterproof and breathable film 10 is fixed, a circuit board seat 8 is fixedly connected with the bottom surface of the shell 11, a circuit board 4 is fixedly connected with the circuit board seat 8, the inner end of an electrical appliance connecting pin 2 is electrically connected with the circuit board 4, the outer end of the electrical appliance connecting pin 2 is positioned in the connector 1, a first insulating vacuum sensor 5 is fixedly connected with the lower part of the circuit board 4, a first silica gel sealing gasket 6 is arranged between the cavity A1101 and the first insulating vacuum sensor 5, a second insulating vacuum sensor 7 is fixedly connected with the lower part of the circuit board 4, and a second silica gel sealing gasket 12 is arranged between the cavity B1102 and the second insulating vacuum sensor 7.
The electrical connection contact pin 2 comprises a power connection port 201, a ground connection port 202, a vacuum pump positive electrode interface 203 and a vacuum pump negative electrode interface 204.
The working principle of the device is that,
the connector 1 is connected with a vacuum pump and a power supply, outside gas enters the cavity A through the waterproof and breathable film 10, the pressure of the cavity A, namely the external atmospheric pressure, is detected through the first vacuum absolute pressure sensor, so that the altitude can be identified, whether the altitude is a plain or a plateau area is judged, the sealing performance of the contact surface of the vacuum absolute pressure sensor is ensured by the silica gel sealing gasket, the first vacuum absolute pressure sensor and the second vacuum absolute pressure sensor are prevented from being conducted, the waterproof and breathable film plays a role in preventing water from entering the cavity A to burn out the first vacuum absolute pressure sensor, but the gas can be conducted bidirectionally, and the first vacuum absolute pressure sensor can accurately measure the external atmospheric pressure; the vacuum absolute pressure sensor II detects the vacuum degree of the vacuum booster through a cavity B, and the cavity A and the cavity B are independent and non-conductive;
after power-on, initializing hardware and various states, detecting the atmospheric pressure outside the controller through a first absolute vacuum sensor, judging whether the atmospheric pressure outside is greater than or equal to 90kpa, if so, indicating an approximately plain area, entering a plain mode to control a vacuum pump, detecting the air pressure of a vacuum booster through a second absolute vacuum sensor, controlling the air pressure of the vacuum booster to be between 30kpa and 50kpa, and if not, operating the vacuum pump; if the external air pressure is less than 90kpa, the method indicates that the vacuum pump enters a plateau mode to control the vacuum pump, the absolute pressure vacuum sensor II is used for detecting the air pressure of the vacuum booster, and the vacuum pump is controlled to be between 35kpa and 60kpa, and if the air pressure is not between 35kpa and 60kpa, the vacuum pump works, so that the power consumption of an engine can be reduced, the braking effect of an automobile can be increased, and the feel of braking feet can be improved.
Claims (2)
1. An electric vacuum pump controlling means in adaptation plateau and plain district, the one end and the joint connection of casing, apron and casing top joint, its characterized in that: the bottom of the shell is provided with a cavity B communicated with the vacuum booster, the lower part of the shell is provided with a cavity A communicated with the outside of the controller, the cavity A is not communicated with the cavity B, a waterproof and breathable film is arranged at a hole of the cavity A communicated with the outside, a fixed waterproof and breathable film clamping seat is clamped with the shell at the hole, so that the waterproof and breathable film is fixed, a circuit board seat is fixedly connected with the bottom surface of the shell, a circuit board is fixedly connected with the circuit board seat, the inner end of an electrical appliance connecting pin is electrically connected with the circuit board, the outer end of the electrical appliance connecting pin is positioned in a joint, a first absolute vacuum sensor is fixedly connected with the lower part of the circuit board, a first silica gel sealing gasket is arranged between the cavity A and the first absolute vacuum sensor, a second absolute vacuum sensor is fixedly connected with the lower part of the circuit board, and a second silica gel sealing gasket is arranged between the cavity B and the second absolute vacuum sensor;
after power-on, initializing hardware and various states, detecting the atmospheric pressure outside the controller through a first absolute vacuum sensor, judging whether the atmospheric pressure outside is greater than or equal to 90kpa, if so, indicating an approximately plain area, entering a plain mode to control a vacuum pump, detecting the air pressure of a vacuum booster through a second absolute vacuum sensor, controlling the air pressure of the vacuum booster to be between 30kpa and 50kpa, and if not, operating the vacuum pump; if the external air pressure is less than 90kpa, indicating an approximate plateau area, entering a plateau mode to control a vacuum pump, detecting the air pressure of a vacuum booster through a second absolute vacuum sensor, controlling the air pressure between 35kpa and 60kpa, and if the air pressure is not between 35kpa and 60kpa, operating the vacuum pump.
2. An electric vacuum pump control apparatus adapted to a plateau and a plateau region as claimed in claim 1, wherein: the electrical appliance connection contact pin comprises a power connection port, a ground connection port, a vacuum pump positive electrode interface and a vacuum pump negative electrode interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811652592.XA CN109572649B (en) | 2018-12-30 | 2018-12-30 | Electric vacuum pump control device suitable for plateau and plateau areas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811652592.XA CN109572649B (en) | 2018-12-30 | 2018-12-30 | Electric vacuum pump control device suitable for plateau and plateau areas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109572649A CN109572649A (en) | 2019-04-05 |
| CN109572649B true CN109572649B (en) | 2023-10-24 |
Family
ID=65915644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811652592.XA Active CN109572649B (en) | 2018-12-30 | 2018-12-30 | Electric vacuum pump control device suitable for plateau and plateau areas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109572649B (en) |
Citations (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1266673A (en) * | 1969-03-08 | 1972-03-15 | ||
| EP0049955A1 (en) * | 1980-10-09 | 1982-04-21 | General Motors Corporation | Dual cavity pressure sensor |
| US4518316A (en) * | 1982-09-10 | 1985-05-21 | Mitsubishi Denki Kabushiki Kaisha | Pressure sustaining apparatus |
| JPH05340830A (en) * | 1992-06-09 | 1993-12-24 | Nippondenso Co Ltd | Pressure sensor and its manufacture |
| US5460074A (en) * | 1992-11-13 | 1995-10-24 | Itt Automotive Europe Gmbh | Vacuum brake power booster |
| US5823637A (en) * | 1997-03-14 | 1998-10-20 | Blue; W. Scott | Universal vacuum pump apparatus and method |
| JP2000258274A (en) * | 1999-03-05 | 2000-09-22 | Laurel Bank Mach Co Ltd | Pressure sensor for paper sheet counter |
| US6253656B1 (en) * | 1998-07-08 | 2001-07-03 | Lucas Industries Public Limited Company | Sensor assembly for a brake booster and brake booster equipped therewith |
| US6324845B1 (en) * | 2000-06-23 | 2001-12-04 | Delphi Technologies, Inc. | Self contained, supplemental vacuum assist unit for vehicle brake booster |
| JP2006153782A (en) * | 2004-11-30 | 2006-06-15 | Mitsuteru Kimura | Gas-sensing device having porous lid |
| KR20060069101A (en) * | 2004-12-17 | 2006-06-21 | 현대자동차주식회사 | Safety device for brake booster |
| JP2008082178A (en) * | 2006-09-25 | 2008-04-10 | Nabtesco Corp | Negative pressure supply device |
| JP2011098607A (en) * | 2009-11-04 | 2011-05-19 | Denso Corp | Vehicle control system |
| WO2011065515A1 (en) * | 2009-11-30 | 2011-06-03 | Toyota Jidosha Kabushiki Kaisha | Assistance-limit recognizing device, assistance-limit recognizing method, and vehicle brake system including the assistance-limit recognizing device |
| CN102381302A (en) * | 2011-08-23 | 2012-03-21 | 重庆小康工业集团股份有限公司 | Analog-to-digital electric vacuum assistance system and air pressure control method |
| WO2013007752A2 (en) * | 2011-07-11 | 2013-01-17 | Continental Teves Ag & Co. Ohg | Pneumatic brake booster |
| CN102943759A (en) * | 2012-11-13 | 2013-02-27 | 吉林东光奥威汽车制动系统有限公司 | Electric vacuum pump |
| CN203020299U (en) * | 2013-01-15 | 2013-06-26 | 赛普(杭州)电动汽车有限公司 | Braking system |
| CN103398819A (en) * | 2013-08-26 | 2013-11-20 | 昆山市兴利车辆科技配套有限公司 | Novel vehicle vacuum pressure sensor |
| CN203419131U (en) * | 2013-08-26 | 2014-02-05 | 昆山市兴利车辆科技配套有限公司 | Novel automobile vacuum pressure sensor |
| CN103674397A (en) * | 2013-12-03 | 2014-03-26 | 新会康宇测控仪器仪表工程有限公司 | High-overload back pressure type absolute-pressure sensor module and manufacturing technology thereof |
| WO2016043670A1 (en) * | 2014-09-15 | 2016-03-24 | Baggia Aleš | Magnetic induction system, a sensor and a method for measuring air pressure in vacuum insulation panels |
| GB201614051D0 (en) * | 2016-08-17 | 2016-09-28 | Ford Global Tech Llc | A method of controlling an aspirator valve |
| CN205905967U (en) * | 2016-08-19 | 2017-01-25 | 江铃控股有限公司 | Integral plastic three -way structure suitable for car braking vacuum monitoring device |
| CN206223355U (en) * | 2016-11-28 | 2017-06-06 | 芜湖捷欧汽车部件有限公司 | A kind of high-air-tightness inlet structure on vacuum transducer |
| CN107697058A (en) * | 2017-11-17 | 2018-02-16 | 河北亚大汽车塑料制品有限公司 | A kind of vacuum pressure sensor check valve |
| CN108106773A (en) * | 2017-12-13 | 2018-06-01 | 芜湖致通汽车电子有限公司 | Four pressure differential pressure pickups |
| CN108132123A (en) * | 2017-12-23 | 2018-06-08 | 埃泰克汽车电子(芜湖)有限公司 | Braking automobile power-assisted vacuum sensor, pressure difference detection method and preparation method |
| CN207902421U (en) * | 2018-02-14 | 2018-09-25 | 罗伯特·博世有限公司 | Low pressure sensor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5541306B2 (en) * | 2011-05-27 | 2014-07-09 | 株式会社デンソー | Mechanical quantity sensor device and manufacturing method thereof |
-
2018
- 2018-12-30 CN CN201811652592.XA patent/CN109572649B/en active Active
Patent Citations (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1266673A (en) * | 1969-03-08 | 1972-03-15 | ||
| EP0049955A1 (en) * | 1980-10-09 | 1982-04-21 | General Motors Corporation | Dual cavity pressure sensor |
| US4518316A (en) * | 1982-09-10 | 1985-05-21 | Mitsubishi Denki Kabushiki Kaisha | Pressure sustaining apparatus |
| JPH05340830A (en) * | 1992-06-09 | 1993-12-24 | Nippondenso Co Ltd | Pressure sensor and its manufacture |
| US5460074A (en) * | 1992-11-13 | 1995-10-24 | Itt Automotive Europe Gmbh | Vacuum brake power booster |
| US5823637A (en) * | 1997-03-14 | 1998-10-20 | Blue; W. Scott | Universal vacuum pump apparatus and method |
| US6253656B1 (en) * | 1998-07-08 | 2001-07-03 | Lucas Industries Public Limited Company | Sensor assembly for a brake booster and brake booster equipped therewith |
| JP2000258274A (en) * | 1999-03-05 | 2000-09-22 | Laurel Bank Mach Co Ltd | Pressure sensor for paper sheet counter |
| US6324845B1 (en) * | 2000-06-23 | 2001-12-04 | Delphi Technologies, Inc. | Self contained, supplemental vacuum assist unit for vehicle brake booster |
| JP2006153782A (en) * | 2004-11-30 | 2006-06-15 | Mitsuteru Kimura | Gas-sensing device having porous lid |
| KR20060069101A (en) * | 2004-12-17 | 2006-06-21 | 현대자동차주식회사 | Safety device for brake booster |
| JP2008082178A (en) * | 2006-09-25 | 2008-04-10 | Nabtesco Corp | Negative pressure supply device |
| JP2011098607A (en) * | 2009-11-04 | 2011-05-19 | Denso Corp | Vehicle control system |
| WO2011065515A1 (en) * | 2009-11-30 | 2011-06-03 | Toyota Jidosha Kabushiki Kaisha | Assistance-limit recognizing device, assistance-limit recognizing method, and vehicle brake system including the assistance-limit recognizing device |
| WO2013007752A2 (en) * | 2011-07-11 | 2013-01-17 | Continental Teves Ag & Co. Ohg | Pneumatic brake booster |
| CN102381302A (en) * | 2011-08-23 | 2012-03-21 | 重庆小康工业集团股份有限公司 | Analog-to-digital electric vacuum assistance system and air pressure control method |
| CN102943759A (en) * | 2012-11-13 | 2013-02-27 | 吉林东光奥威汽车制动系统有限公司 | Electric vacuum pump |
| CN203020299U (en) * | 2013-01-15 | 2013-06-26 | 赛普(杭州)电动汽车有限公司 | Braking system |
| CN103398819A (en) * | 2013-08-26 | 2013-11-20 | 昆山市兴利车辆科技配套有限公司 | Novel vehicle vacuum pressure sensor |
| CN203419131U (en) * | 2013-08-26 | 2014-02-05 | 昆山市兴利车辆科技配套有限公司 | Novel automobile vacuum pressure sensor |
| CN103674397A (en) * | 2013-12-03 | 2014-03-26 | 新会康宇测控仪器仪表工程有限公司 | High-overload back pressure type absolute-pressure sensor module and manufacturing technology thereof |
| WO2016043670A1 (en) * | 2014-09-15 | 2016-03-24 | Baggia Aleš | Magnetic induction system, a sensor and a method for measuring air pressure in vacuum insulation panels |
| GB201614051D0 (en) * | 2016-08-17 | 2016-09-28 | Ford Global Tech Llc | A method of controlling an aspirator valve |
| CN205905967U (en) * | 2016-08-19 | 2017-01-25 | 江铃控股有限公司 | Integral plastic three -way structure suitable for car braking vacuum monitoring device |
| CN206223355U (en) * | 2016-11-28 | 2017-06-06 | 芜湖捷欧汽车部件有限公司 | A kind of high-air-tightness inlet structure on vacuum transducer |
| CN107697058A (en) * | 2017-11-17 | 2018-02-16 | 河北亚大汽车塑料制品有限公司 | A kind of vacuum pressure sensor check valve |
| CN108106773A (en) * | 2017-12-13 | 2018-06-01 | 芜湖致通汽车电子有限公司 | Four pressure differential pressure pickups |
| CN108132123A (en) * | 2017-12-23 | 2018-06-08 | 埃泰克汽车电子(芜湖)有限公司 | Braking automobile power-assisted vacuum sensor, pressure difference detection method and preparation method |
| CN207902421U (en) * | 2018-02-14 | 2018-09-25 | 罗伯特·博世有限公司 | Low pressure sensor |
Non-Patent Citations (3)
| Title |
|---|
| 内压缩干式螺杆真空泵工作特性数学建模;巫修海;陈文华;张宝夫;;真空科学与技术学报(第09期);第25-32页 * |
| 智能汽车电子真空助力器设计;柳恩芬;袁亮;张玉海;;吉林大学学报(信息科学版)(第04期);第33-39页 * |
| 电动真空泵在真空助力制动系统中的应用;李海龙;;轻型汽车技术(第Z3期);第5-8页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109572649A (en) | 2019-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110979283B (en) | Control method of vacuum boosting system and storage medium | |
| CN101767581A (en) | Vacuum assisted brake system, control method thereof, and vehicle comprising vacuum assisted brake system | |
| CN201670225U (en) | Control module, brake vacuum boosting device and electric automobile | |
| CN106930931B (en) | A kind of electric air compressor control system and its control method | |
| JP2001055133A (en) | Method for supplying negative pressure in vehicle and device thereof | |
| CN102815290B (en) | Activate the stand-by circuit of electric vacuum pump when controller breaks down | |
| CN101830214A (en) | Control module, control method, brake vacuum servo device and electric automobile | |
| JPH10100884A (en) | Brake fluid pressure control device | |
| CN112744199A (en) | Electro-hydraulic brake system, application method thereof and vehicle | |
| CN109484387B (en) | Control method and system for vacuum pump of electric vehicle | |
| CN201932148U (en) | Electric vehicle vacuum boosting device based on absolute pressure sensor | |
| CN109572649B (en) | Electric vacuum pump control device suitable for plateau and plateau areas | |
| CN109094544B (en) | Electric automobile vacuum pump controller structure and control method | |
| KR102406138B1 (en) | Method for detecting vacuum pump fail of vehicle | |
| JP2010162914A (en) | Vacuum pump control device | |
| EP1319819A3 (en) | Method for detecting abnormality in hybrid vehicle | |
| CN205381264U (en) | Electric motor car vacuum servo control system | |
| CN209535037U (en) | A kind of Motorized vacuum apparatus for controlling pump adapting to plateau and plains region | |
| CN211107379U (en) | New energy automobile braking electric vacuum boosting system | |
| CN108099885B (en) | Vacuum degree control method and system suitable for hybrid power braking | |
| CN209131577U (en) | Displacement sensor system and clutch detecting device | |
| CN110435618A (en) | A kind of brake of electric vehicle digital electric vacuum assistance system for taking into account altitude environment | |
| CN207689070U (en) | A kind of braking automobile power-assisted vacuum sensor | |
| CN205801090U (en) | Electric motor car electric controlled brake system and electric motor car | |
| CN108749807A (en) | A kind of differential pressure pickup working method of Highgrade integration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |