CN102145643A - Closed loop gas path system of electric control air suspension - Google Patents
Closed loop gas path system of electric control air suspension Download PDFInfo
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- CN102145643A CN102145643A CN 201110054646 CN201110054646A CN102145643A CN 102145643 A CN102145643 A CN 102145643A CN 201110054646 CN201110054646 CN 201110054646 CN 201110054646 A CN201110054646 A CN 201110054646A CN 102145643 A CN102145643 A CN 102145643A
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Abstract
The invention discloses a closed loop air path system of an electric control air suspension, which comprises an air storage tank, an air compressor, an air filter, a dryer, an air charging/discharging circuit switching solenoid valve, an air spring charging valve switch solenoid valve, an air path air compensation switch solenoid valve and connecting pipelines. As an electronic control unit (ECU) of an electric control air suspension system of a vehicle controls the on/off of the solenoid valves and the air compressor according to input vehicle information and control strategies, the charging or discharging of respective air springs in the air suspension of the vehicle is realized, and the air pressure in the air springs is changed, so that the vehicle reaches a set target state, and the smoothness and the control stability of the vehicle are improved; and when the closed loop air path system is adopted, air cannot be directly discharged into the atmosphere, but returns to the air storage tank when the air springs discharge air, so that the energy conservation of the system can be realized, and meanwhile, the noise is reduced.
Description
Technical field
The present invention relates to the vehicle electrically controlling airsuspension system, particularly a kind of closed loop air-channel system of electronic control air suspension.
Background technology
The electronic control air suspension system reduces the destruction of vehicle road pavement owing to can improve the traveling comfort and the road-holding property of vehicle, is used widely gradually on vehicles such as passenger vehicle, lorry.
Fig. 1 is the air-channel system figure of present electronic control air suspension, the pressurized air that air compressor produces is stored in the storage tank (4) behind air dryer (2) and airfilter (3), storage tank (4) can be eliminated compressed-air actuated pressure pulsation, and can keep the air feed of short time when Air compressor breaks down.The electronic control unit of electronic control air suspension (10) receives the height of car information of height sensor (7) transmission that is installed on vehicle antero posterior axis (5,17), and controls the power on/off of all electromagnetic valves (11,12,13,14,15) of air-channel system according to control policy.When height of car need raise, electronic control unit opens two-position three way magnetic valve (11) and two-position two-way solenoid valve (12,13,14,15) energising by the output control signal, and the pressurized air in the storage tank (4) puts on the air to four air bellows (6,8,18,16) of vehicle antero posterior axis airsuspension system respectively through each electromagnetic valve.Then only need open two-position two-way solenoid valve corresponding and two-position three way magnetic valve if only need to the inflation of part air bellow with it.When height of car reaches the object height of setting, all closed electromagnetic valves, the air bellow inflation finishes.When height of car need reduce, electronic control unit output control signal was opened all two-position two-way solenoid valves, and then the air in the air bellow is crossed two-position two-way solenoid valve, two-position three way magnetic valve and noise silencer (9) exhaust to atmosphere.Then only need open two-position two-way solenoid valve corresponding if only need to the exhaust of part air bellow with it.
Because this open loop air-channel system is when exhaust, with the direct exhaust to atmosphere of the air in the air bellow, therefore, the open loop air-channel system makes airsuspension system in use cause a large amount of wastes of the energy.
Summary of the invention
For overcoming the shortcoming and defect of prior art, the objective of the invention is to propose a kind of closed loop air-channel system of electronic control air suspension, the degradation of energy that the air bellow that reduces present electronic control air suspension causes the direct exhaust to atmosphere of air during owing to exhaust in charging and discharging the gas process makes vehicle more energy-conservation.
The present invention is achieved through the following technical solutions:
A kind of closed loop air-channel system of electronic control air suspension, comprise storage tank, Air compressor, the storage tank air-channel system, be installed in the air bellow on the car antero posterior axis, be used to control the electronic control unit of air-channel system, it is characterized in that: described air-channel system comprises first electromagnetic valve that is interconnected, second electromagnetic valve, the 3rd electromagnetic valve, the 4th electromagnetic valve, the 5th electromagnetic valve, the 6th electromagnetic valve, the 7th electromagnetic valve, the 4th electromagnetic valve wherein, the 5th electromagnetic valve, the 6th electromagnetic valve, the 7th electromagnetic valve also is communicated with air bellow, described first electromagnetic valve also with storage tank, Air compressor is communicated with, electronic control unit respectively with storage tank, Air compressor, first electromagnetic valve, second electromagnetic valve, the 3rd electromagnetic valve, the 4th electromagnetic valve, the 5th electromagnetic valve, the 6th electromagnetic valve, the 7th electromagnetic valve is electrically connected, and described the 3rd electromagnetic valve also is connected with the main air-channel system of vehicle.
Described the 3rd electromagnetic valve, the 4th electromagnetic valve, the 5th electromagnetic valve, the 6th electromagnetic valve, the 7th electromagnetic valve are two-position two-way solenoid valve, and described first electromagnetic valve, second electromagnetic valve are two-position three way magnetic valve.
Also be connected with air dryer and airfilter between described first electromagnetic valve and the Air compressor.
Also be provided with height sensor on the described car antero posterior axis.
Described storage tank is provided with pressure sensor.
The present invention has following advantage and beneficial effect with respect to prior art: the technology of the present invention means are simple and easy to do, when air bellow is exitted, pressurized air in the air bellow is not direct exhaust to atmosphere, but send in the storage tank through Air compressor, thereby reduced compressed-air actuated degradation of energy, made the electronic control air suspension system have energy-conserving action;
The present invention realized the inflation of each air bellow in the vehicle air suspension or venting, changes the gaseous tension in the air bellow, makes vehicle reach the dbjective state of setting, improves the ride comfort and the road-holding property of vehicle.Adopt this closed loop air-channel system, air bellow when venting air is direct exhaust to atmosphere not, but comes back to storage tank, can realize the energy-conservation of system, and the while has also reduced noise, has positive application value.
Description of drawings
Fig. 1 is an air-channel system structural representation of using electronic control air suspension at present always;
Fig. 2 is the structural representation of the closed loop air-channel system of electronic control air suspension of the present invention.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 2, the closed loop air-channel system of electronic control air suspension of the present invention, comprise storage tank 1, Air compressor 6, storage tank 1 air-channel system, be installed in car antero posterior axis 7, air bellow 8 on 20,10,19,21, be used to control the electronic control unit 11 of air-channel system, described air-channel system comprises first electromagnetic valve 3 that is interconnected, second electromagnetic valve 12, the 3rd electromagnetic valve 13, the 4th electromagnetic valve 15, the 5th electromagnetic valve 16, the 6th electromagnetic valve 17, the 7th electromagnetic valve 18, the 4th electromagnetic valve 15 wherein, the 5th electromagnetic valve 16, the 6th electromagnetic valve 17, the 7th electromagnetic valve 18 also with air bellow 8,10,19,21 are communicated with, described first electromagnetic valve 3 also with storage tank 1, Air compressor 6 is communicated with, electronic control unit 11 respectively with storage tank 1, Air compressor 6, first electromagnetic valve 3, second electromagnetic valve 12, the 3rd electromagnetic valve 13, the 4th electromagnetic valve 15, the 5th electromagnetic valve 16, the 6th electromagnetic valve 17, the 7th electromagnetic valve 18 is electrically connected, and described the 3rd electromagnetic valve 13 also is connected with the main air-channel system 14 of vehicle.
Described the 3rd electromagnetic valve 13, the 4th electromagnetic valve 15, the 5th electromagnetic valve 16, the 6th electromagnetic valve 17, the 7th electromagnetic valve 18 are two-position two-way solenoid valve, and described first electromagnetic valve 3, second electromagnetic valve 12 are two-position three way magnetic valve.
Also be connected with air dryer 4 and airfilter 5 between described first electromagnetic valve 3 and the Air compressor 6.
Also be provided with height sensor 9 on the described car antero posterior axis 7,20.
Described storage tank (1) is provided with pressure sensor 2.
Shown in Figure 2, stored pressurized air in the storage tank 1 with certain pressure, the air pressure of pressure sensor 2 monitoring storage tanks, source of the gas 14 is the main air-channel system of vehicle, air bellow 8,10,19,21 is installed on the vehicle antero posterior axis 7,20.First electromagnetic valve 3,12 effects of second electromagnetic valve are for charging and discharging the air circuit conversion, wherein the 4th electromagnetic valve 15, the 5th electromagnetic valve 16, the 6th electromagnetic valve 17,18 effects of the 7th electromagnetic valve are the air cocks that charge and discharge for air bellow, and promptly each air bellow all has an electromagnetic valve corresponding with it.The information of the pressure sensor 2 of height sensor 9 and storage tank 1 is sent in the electronic control unit 11.The power on/off of all air-channel system electromagnetic valves of the present invention and the switch of Air compressor 6 are controlled according to input information and control policy by electronic control unit (ECU) 11 of electronic control air suspension system.Because pressure is bigger in the air-channel system of the present invention, simultaneously in order to obtain bigger charge air, all air-channel system electromagnetic valves can adopt the pilot-operated type solenoid directional control valve.
When to air bellow 8,10,19,21 inflations, 3 outages of first electromagnetic valve, 12 energisings of second electromagnetic valve, meanwhile, the vehicle antero posterior axis needs gas filed air bellow 8,10,19,21 cooresponding the 4th electromagnetic valves 15, the 5th electromagnetic valve 16, the 6th electromagnetic valve 17,18 energisings of the 7th electromagnetic valve to open, Air compressor 6 operations, gas circuit is in the inflation loop.Pressurized air in the storage tank 1 enters 10,8,21,19 pairs of air bellows of air bellow by each electromagnetic valve and puts on the air after passing through Air compressor 6 superchargings as source of the gas.After vehicle reaches dbjective state, all the electromagnetic valve outages of this air-channel system, gas circuit disconnects, and Air compressor is out of service simultaneously, and inflation finishes.If only need the inflation of part air bellow, then only cooresponding electromagnetic valve energising gets final product the outage of rest switch electromagnetic valve to the gas filed air bellow of needs in the gas replenishment process.
When air bellow 8,10,19,21 venting, 3 energisings of first electromagnetic valve, 12 outages of second electromagnetic valve, meanwhile, need air bellow 8,10,19,21 cooresponding the 4th electromagnetic valves 15, the 5th electromagnetic valve 16, the 6th electromagnetic valve 17,18 energisings of the 7th electromagnetic valve of venting to open, Air compressor 6 operations, gas circuit is in the venting loop.Air process electromagnetic valve in the air bellow 8,10,19,21, and by sending in the storage tank 1 after Air compressor 6 superchargings.After vehicle reaches dbjective state, all electromagnetic valve outages, gas circuit disconnects, and Air compressor is out of service simultaneously, and venting finishes.If only need the venting of part air bellow, then only cooresponding switch electromagnetic valve energising gets final product the outage of rest switch electromagnetic valve to the air bellow of needs venting in the deflation course.
Because source of the gas 14 is a vehicle single-piece master air feed gas circuit in the air-channel system of the present invention, so when the gas of air-channel system of the present invention reduces because of leakage, can be to first electromagnetic valve 3 and 12 energisings of second electromagnetic valve, all the other electromagnetic valve outages, and Air compressor 6 operations.Gas in the whole air feed gas circuit of vehicle just can enter storage tank 1 through the 3rd electromagnetic valve 13 and after Air compressor 6 superchargings, the deficiency of compensation air-channel system required air.Can close all electromagnetic valves and Air compressor 6 when pressure reaches initial setting pressure in the storage tank 1, gas circuit stops compensating air.Have only the pressure that detects storage tank 1 pressure sensor 2 when electronic control unit 11 during less than setup pressure value, it just can carry out gas circuit compensated with air program.
As mentioned above, the present invention has increased by two two-position three way magnetic valves with respect to the open loop air-channel system and has realized conversion between inflation and the venting loop, no matter make in venting still in the gas replenishment process, Air compressor 6 can both be worked, air is carried out supercharging, make air can enter air bellow or storage tank fast smoothly.During venting, the air in the air bellow is got back in the storage tank through electromagnetic valve, has reduced compressed-air actuated degradation of energy.
Just can realize the present invention preferably as mentioned above.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (5)
1. the closed loop air-channel system of an electronic control air suspension, comprise storage tank, Air compressor, the storage tank air-channel system, be installed in the air bellow on the car antero posterior axis, be used to control the electronic control unit of air-channel system, it is characterized in that: described air-channel system comprises first electromagnetic valve that is interconnected, second electromagnetic valve, the 3rd electromagnetic valve, the 4th electromagnetic valve, the 5th electromagnetic valve, the 6th electromagnetic valve, the 7th electromagnetic valve, the 4th electromagnetic valve wherein, the 5th electromagnetic valve, the 6th electromagnetic valve, the 7th electromagnetic valve also is communicated with air bellow, described first electromagnetic valve also with storage tank, Air compressor is communicated with, electronic control unit respectively with storage tank, Air compressor, first electromagnetic valve, second electromagnetic valve, the 3rd electromagnetic valve, the 4th electromagnetic valve, the 5th electromagnetic valve, the 6th electromagnetic valve, the 7th electromagnetic valve is electrically connected, and described the 3rd electromagnetic valve also is connected with the main air-channel system of vehicle.
2. the closed loop air-channel system of electronic control air suspension according to claim 1, it is characterized in that: described the 3rd electromagnetic valve, the 4th electromagnetic valve, the 5th electromagnetic valve, the 6th electromagnetic valve, the 7th electromagnetic valve are two-position two-way solenoid valve, and described first electromagnetic valve, second electromagnetic valve are two-position three way magnetic valve.
3. the closed loop air-channel system of electronic control air suspension according to claim 1 and 2 is characterized in that: also be connected with air dryer and airfilter between described first electromagnetic valve and the Air compressor.
4. the closed loop air-channel system of electronic control air suspension according to claim 3 is characterized in that: also be provided with height sensor on the described car antero posterior axis.
5. the closed loop air-channel system of electronic control air suspension according to claim 3, it is characterized in that: described storage tank is provided with pressure sensor.
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| CN 201110054646 CN102145643A (en) | 2011-03-08 | 2011-03-08 | Closed loop gas path system of electric control air suspension |
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| CN 201110054646 CN102145643A (en) | 2011-03-08 | 2011-03-08 | Closed loop gas path system of electric control air suspension |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241097A (en) * | 2013-05-23 | 2013-08-14 | 江苏大学 | Self-pressurized device with high pressure chamber and low pressure chamber of closed air loop air suspension system |
| CN103373191A (en) * | 2012-04-20 | 2013-10-30 | 福特全球技术公司 | Height adjusting device for automobile body |
| CN104015581A (en) * | 2014-05-20 | 2014-09-03 | 江苏大学 | Method for adjusting and controlling vehicle height of electrical control air suspension |
| CN105501021A (en) * | 2015-12-18 | 2016-04-20 | 江苏科技大学 | Automobile chassis height regulating and controlling device and control method thereof |
| CN106143041A (en) * | 2015-04-17 | 2016-11-23 | 金华理工泰科汽车研究所有限公司 | A kind of Vehicular air suspension control system and control method thereof |
| CN106976371A (en) * | 2015-12-04 | 2017-07-25 | 丰田自动车株式会社 | Compressed air source unit |
| CN107444053A (en) * | 2017-09-19 | 2017-12-08 | 安路普（北京）汽车技术有限公司 | A kind of air suspension control system and its method of work, multiple-axle vehicle |
| CN108297642A (en) * | 2018-02-06 | 2018-07-20 | 海南大学 | Shared gas chamber airsuspension system and its control method |
| CN108883684A (en) * | 2016-03-30 | 2018-11-23 | 威伯科欧洲有限责任公司 | compressed air supply device |
| CN108973580A (en) * | 2018-07-30 | 2018-12-11 | 广州市米萨汽车电子科技有限公司 | Electric air pump |
| CN109367346A (en) * | 2018-11-23 | 2019-02-22 | 清科智能悬架系统（苏州）有限公司 | A kind of distributing valve for gas direction changeable in airsuspension system |
| CN109414971A (en) * | 2016-09-27 | 2019-03-01 | 日立汽车系统株式会社 | Airsuspension system |
| CN109655293A (en) * | 2019-01-24 | 2019-04-19 | 清科智能悬架系统（苏州）有限公司 | A kind of air suspension of automobile fault diagnosis system, diagnostic method and upgrade method |
| CN110315923A (en) * | 2019-08-06 | 2019-10-11 | 珠海格力电器股份有限公司 | A kind of gas path device, airsuspension system, automobile and its control method |
| CN113147299A (en) * | 2021-05-05 | 2021-07-23 | 东风汽车集团股份有限公司 | Inflation-free automobile air suspension system |
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| CN201400066Y (en) * | 2009-04-14 | 2010-02-10 | 房县星源工贸有限责任公司 | Electronically controlled air suspension system |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103373191A (en) * | 2012-04-20 | 2013-10-30 | 福特全球技术公司 | Height adjusting device for automobile body |
| CN103241097A (en) * | 2013-05-23 | 2013-08-14 | 江苏大学 | Self-pressurized device with high pressure chamber and low pressure chamber of closed air loop air suspension system |
| CN103241097B (en) * | 2013-05-23 | 2015-09-02 | 江苏大学 | High-low pressure chamber closed loop gas circuit airsuspension system self-supercharging device |
| CN104015581A (en) * | 2014-05-20 | 2014-09-03 | 江苏大学 | Method for adjusting and controlling vehicle height of electrical control air suspension |
| CN106143041B (en) * | 2015-04-17 | 2019-11-22 | 金华理工泰科汽车研究所有限公司 | A kind of Vehicular air suspension control system and its control method |
| CN106143041A (en) * | 2015-04-17 | 2016-11-23 | 金华理工泰科汽车研究所有限公司 | A kind of Vehicular air suspension control system and control method thereof |
| CN106976371B (en) * | 2015-12-04 | 2019-07-02 | 丰田自动车株式会社 | Compressed air source unit |
| CN106976371A (en) * | 2015-12-04 | 2017-07-25 | 丰田自动车株式会社 | Compressed air source unit |
| CN105501021B (en) * | 2015-12-18 | 2017-12-26 | 江苏科技大学 | A kind of highly regulated device of automobile chassis and its control method |
| CN105501021A (en) * | 2015-12-18 | 2016-04-20 | 江苏科技大学 | Automobile chassis height regulating and controlling device and control method thereof |
| CN108883684B (en) * | 2016-03-30 | 2022-02-22 | 威伯科欧洲有限责任公司 | Pneumatic system, compressed air supply device, method for operating a pneumatic system and/or a pneumatic device, and control and/or regulation device for a pneumatic system and/or a compressed air supply device |
| CN108883684A (en) * | 2016-03-30 | 2018-11-23 | 威伯科欧洲有限责任公司 | compressed air supply device |
| CN109414971A (en) * | 2016-09-27 | 2019-03-01 | 日立汽车系统株式会社 | Airsuspension system |
| CN109414971B (en) * | 2016-09-27 | 2022-02-25 | 日立安斯泰莫株式会社 | Air suspension system |
| CN107444053A (en) * | 2017-09-19 | 2017-12-08 | 安路普（北京）汽车技术有限公司 | A kind of air suspension control system and its method of work, multiple-axle vehicle |
| CN107444053B (en) * | 2017-09-19 | 2022-12-27 | 安路普（北京）汽车技术有限公司 | Air suspension control system, working method thereof and multi-axle vehicle |
| CN108297642A (en) * | 2018-02-06 | 2018-07-20 | 海南大学 | Shared gas chamber airsuspension system and its control method |
| CN108973580A (en) * | 2018-07-30 | 2018-12-11 | 广州市米萨汽车电子科技有限公司 | Electric air pump |
| CN109367346A (en) * | 2018-11-23 | 2019-02-22 | 清科智能悬架系统（苏州）有限公司 | A kind of distributing valve for gas direction changeable in airsuspension system |
| CN109655293A (en) * | 2019-01-24 | 2019-04-19 | 清科智能悬架系统（苏州）有限公司 | A kind of air suspension of automobile fault diagnosis system, diagnostic method and upgrade method |
| CN110315923A (en) * | 2019-08-06 | 2019-10-11 | 珠海格力电器股份有限公司 | A kind of gas path device, airsuspension system, automobile and its control method |
| CN110315923B (en) * | 2019-08-06 | 2024-01-26 | 珠海格力电器股份有限公司 | Air circuit device, air suspension system, automobile and control method of automobile |
| CN113147299A (en) * | 2021-05-05 | 2021-07-23 | 东风汽车集团股份有限公司 | Inflation-free automobile air suspension system |
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Application publication date: 20110810 |