CN102705420B - Air spring regulating system - Google Patents
Air spring regulating system Download PDFInfo
- Publication number
- CN102705420B CN102705420B CN201210204488.0A CN201210204488A CN102705420B CN 102705420 B CN102705420 B CN 102705420B CN 201210204488 A CN201210204488 A CN 201210204488A CN 102705420 B CN102705420 B CN 102705420B
- Authority
- CN
- China
- Prior art keywords
- pneumatic spring
- pipeline
- heavy caliber
- regulating system
- inflation
- 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.)
- Expired - Fee Related
Links
Landscapes
- Vehicle Body Suspensions (AREA)
Abstract
The invention provides an air spring regulating system, which is simple in structure and used for improving stability of a vehicle body height regulating process. The technical scheme for realizing the purpose of the invention is as follows: the air spring regulating system comprises an air suspension controller ECU (Electronic Control Unit), an air spring, an inflation and deflation pipeline connected between an air supply device and the air spring, electromagnetic valves, and the air source device used for providing an air source, wherein the inflation and deflation pipeline comprises small-caliber pipelines and a big-caliber pipeline, the caliber of the big-caliber pipeline is smaller than that of the small-caliber pipelines, and electromagnetic valves are arranged between the two sections of the small-caliber pipelines and are respectively arranged on the small-caliber pipelines on the both ends of the big-caliber pipeline.
Description
Technical field
The present invention relates to isolation structure, especially pneumatic spring regulating system.
Background technique
Air suspension can improve the riding comfort of vehicle significantly, its core component is pneumatic spring, the more important thing is, electronic control air suspension vehicle, can pass through the inflation/deflation to pneumatic spring, realize the change of vehicle body height, to meet the requirement of different vehicle body heights under driving cycle, and driver can select pattern manually or automatically, realize the adjusting of vehicle body height.
When vehicle body height regulates, due to the pressure reduction existence of gas holder and pneumatic spring, while making inflation/deflation, vehicle body height adjustment process stability is inadequate, causes vehicle body height to regulate the phenomenons such as overshoot (overcharge or cross and put) and vibration.
At present, most pneumatic spring is a certain fixed structure, and its rigidity is the result of comprehensive matching, also has peer machine with the additional heavy caliber pipeline of fixed volume, only has and additional heavy caliber pipeline break-make two states.The stiffness characteristics that pneumatic spring is single can not cover the requirement that running conditions of vehicle changes on a large scale air spring rigidity, therefore needs the pneumatic spring of stiffness variable.Like this, air suspension controller ECU, according to the speed of a motor vehicle and road information, calculates current rigidity requirement in real time, and by drive unit, realizes the adjusting of air spring rigidity.
Summary of the invention
The object of this invention is to provide a kind of pneumatic spring regulating system, this pneumatic spring regulating system is simple in structure, can be used for improving the stability of vehicle body height adjustment process.
The technological scheme that realizes the object of the invention is:
Pneumatic spring regulating system, comprise air suspension controller ECU, pneumatic spring, be connected to inflation/deflation pipeline, solenoid valve between described compressed air source unit and described pneumatic spring, and for the compressed air source unit of source of the gas is provided, described inflation/deflation pipeline comprises the pipeline of small-bore pipeline and two kinds of bores of heavy caliber pipeline, the bore of described heavy caliber pipeline is greater than the bore of small-bore pipeline, and be located between two sections of small-bore pipelines, on the small-bore pipeline at described heavy caliber pipeline two ends, be respectively equipped with described solenoid valve.
The present invention by arranging heavy caliber pipeline in existing inflation/deflation pipeline, realize auxiliary chamber function, to substitute the effect of the auxiliary chamber in existing pneumatic spring regulating system, while regulating for vehicle body height, provide buffering, reach the object of stable regulation vehicle body height.
As a further improvement on the present invention, in described inflation/deflation pipeline, be provided with one section of above heavy caliber pipeline, to increase buffering dynamics.
Described one section of above heavy caliber pipeline can be tandem arrangement, be small-bore pipeline and the setting of heavy caliber pipeline interval in described inflation/deflation pipeline, and the volume of each section of heavy caliber pipeline is pneumatic spring volume half, and described one section of above long-pending summation of the large-diameter pipe appearance of a street is not more than the twice of pneumatic spring volume.
Described one section of above heavy caliber pipeline can be to be also arranged in parallel, and the volume of each section of heavy caliber pipeline is pneumatic spring volume half, and described one section of above long-pending summation of the large-diameter pipe appearance of a street is not more than the twice of pneumatic spring volume;
The further scheme of such scheme is that the described solenoid valve at close described pneumatic spring air inlet place is arranged in every parallel branch, reaches the independent of parallel branch inflation/deflation controlled.
The further scheme of such scheme is, is provided with vehicle body height regulon and rigidity has a grade regulon in air suspension controller ECU; Vehicle body height regulon: for when carrying out vehicle body height adjusting, open all solenoid valves; Rigidity has a grade regulon: for carrying out air spring rigidity while having level to regulate, close the solenoid valve being connected with compressed air source unit, the solenoid valve of simultaneously controlling other opens or closes, and realizes the variation of air spring rigidity.
The invention has the beneficial effects as follows:
The heavy caliber pipeline that bore is large is set on inflation/deflation pipeline, makes gas circuit when excessive volume tube road, upstream and downstream draught head reduces, mass flow rate relaxes, finally make pneumatic spring internal pressure change less, its fluctuation is also less, thereby can more stably regulate vehicle body height;
In addition, according to the rigidity formula of pneumatic spring
(wherein: p
0for initial gas pressure in pneumatic spring, closely related with load; A
efor pneumatic spring useful area; N is thermomechanics index; p
afor barometric pressure; X is pneumatic spring amount of deformation; V is volume) known, rigidity k and volume V have relation, and changing inversely trend; A plurality of heavy caliber pipelines are set and are connected with pneumatic spring, by the break-make of solenoid valve, can change the size of the gas volume of participation work, and then obtain desirable stiffness characteristics, meet in real time the requirement of vehicle riding comfort.
Accompanying drawing explanation
Fig. 1 is the structural drawing of first embodiment of the invention;
Fig. 2 is that in the first embodiment, solenoid valve has level to regulate residing open/close states under two kinds of patterns in vehicle body height adjusting and rigidity;
Fig. 3 is the structural drawing of second embodiment of the invention;
Below in conjunction with accompanying drawing and each embodiment, the invention will be further described.
Embodiment
Embodiment 1
Referring to Fig. 1, Fig. 1 shows pneumatic spring regulating system the first embodiment's structure.
Pneumatic spring regulating system has a pneumatic spring 5, and the source of the gas of pneumatic spring is provided by compressor, not shown compressor in Fig. 1, and the high pressure tank that the four-headed arrow shown in Fig. 1 means compressor charges and discharge air to inflation/deflation pipeline 10.
Inflation/deflation pipeline 10 comprises the pipeline of small-bore pipeline 1 and 2 two kinds of bores of heavy caliber pipeline, and the bore of heavy caliber pipeline 2 is greater than the bore of small-bore pipeline 1, and is located between two sections of small-bore pipelines 1.
On the inflation/deflation pipeline 10 between pneumatic spring 5 and the high pressure tank of compressor, be provided with two sections of heavy caliber pipelines 2 that are arranged in parallel, the volume of each section of heavy caliber pipeline is half of pneumatic spring 5 volumes.
Three solenoid valves are set respectively on inflation/deflation pipeline 10, the first solenoid valve 3a is for the gas path on-off between break-make high pressure tank and inflation/deflation pipeline, and the second solenoid valve 3b and the 3rd solenoid valve 3c are respectively used to control the gas path on-off between two heavy caliber pipelines 2 and pneumatic spring 5.
Open first and second and three solenoid valve 3a, 3b, 3c, compressor is realized inflation/deflation to pneumatic spring, can be used for vehicle body height and regulates.
Close the first solenoid valve, by controlling the on off operating mode of second and third solenoid valve 3a, 3b, 3c, can change the number of the heavy caliber pipeline 2 being connected with pneumatic spring 5, changed the gas volume size of the work that participates in, thereby obtain desirable stiffness characteristics, can meet in real time vehicle ride requirement.
Three solenoid valve 3a, 3b, 3c control by air suspension controller ECU is unified, in air suspension controller ECU, be provided with vehicle body height regulon and rigidity has a grade regulon, vehicle body height regulon is for when carrying out vehicle body height adjusting, control all solenoid valves and open, first, second, and third solenoid valve is opened; Rigidity has grade regulon for carrying out air spring rigidity while having level to regulate, control the closed electromagnetic valve being connected with compressed air source unit, i.e. the first closed electromagnetic valve, the solenoid valve of simultaneously controlling other opens or closes, second and the open/close states of the 3rd solenoid valve, realize the variation of air spring rigidity.Can be referring to Fig. 2, Fig. 2 shows three solenoid valves has level to regulate residing open/close states under two kinds of patterns in vehicle body height adjusting and rigidity.
Embodiment 2
Referring to Fig. 3, Fig. 3 shows another embodiment's of pneumatic spring regulating system structure.
Pneumatic spring regulating system has a pneumatic spring 5, and the source of the gas of pneumatic spring is provided by compressor, not shown compressor in Fig. 3, and the high pressure tank that the four-headed arrow shown in Fig. 3 means compressor charges and discharge air to inflation/deflation pipeline 10.
Inflation/deflation pipeline 10 comprises the pipeline of small-bore pipeline 1 and 2 two kinds of bores of heavy caliber pipeline, and the bore of heavy caliber pipeline 2 is greater than the bore of small-bore pipeline 1, and is located between two sections of small-bore pipelines 1.
Two heavy caliber pipelines 2 that are provided with tandem arrangement on the inflation/deflation pipeline 10 between pneumatic spring 5 and the high pressure tank of compressor, the volume of each heavy caliber pipeline is half of pneumatic spring volume.
Three solenoid valves are set respectively on inflation/deflation pipeline, the first solenoid valve 3a is for the gas path on-off between break-make high pressure tank and inflation/deflation pipeline, and the second solenoid valve 3b and the 3rd solenoid valve 3c are respectively used to control the gas path on-off between two heavy caliber pipelines 2 and pneumatic spring 5.
Open first and second and three solenoid valve 3a, 3b, 3c, compressor is realized inflation/deflation to pneumatic spring 5, can be used for vehicle body height and regulates.
Close the first solenoid valve, by controlling the on off operating mode of second and third solenoid valve 3a, 3b, 3c, can change the number of the heavy caliber pipeline 2 being connected with pneumatic spring 5, changed the gas volume size of the work that participates in, thereby obtain desirable stiffness characteristics, can meet in real time vehicle ride requirement.
Three solenoid valves are controlled by air suspension controller ECU is unified, in air suspension controller ECU, be provided with vehicle body height regulon and rigidity has a grade regulon, vehicle body height regulon is for when carrying out vehicle body height adjusting, control all solenoid valves and open, first, second, and third solenoid valve is opened; Rigidity has grade regulon for carrying out air spring rigidity while having level to regulate, control the closed electromagnetic valve being connected with compressed air source unit, i.e. the first closed electromagnetic valve, the solenoid valve of simultaneously controlling other opens or closes, second and the open/close states of the 3rd solenoid valve, realize the variation of air spring rigidity.Can be referring to Fig. 2, Fig. 2 shows three solenoid valves has level to regulate residing open/close states under two kinds of patterns in vehicle body height adjusting and rigidity.
The present invention is applied on vehicle air suspension, can realize the impact of pressurized gas while relaxing vehicle body height adjusting, guarantee that vehicle body height regulates stable, the utmost point that has that can also realize air spring rigidity regulates, according to vehicle current working, switch in real time level of rigidity, improved the riding comfort of air suspension vehicle.
Certainly, above-described embodiment is only preferably embodiment of the present invention, during practical application, can also have more variation, and for example, the number of heavy caliber pipeline 2 is also three or four; Or it can also be pressurized gas suction booster etc. that the air compressor of origin is provided, these changes can realize object of the present invention equally.
Claims (5)
1. pneumatic spring regulating system, comprise air suspension controller ECU, pneumatic spring, for the compressed air source unit of source of the gas is provided and be connected to described compressed air source unit and described pneumatic spring between inflation/deflation pipeline, be connected to the solenoid valve at described inflation/deflation pipeline two ends, it is characterized in that, in described inflation/deflation pipeline, be provided with one section of above heavy caliber pipeline, the bore of described heavy caliber pipeline is greater than the bore of described inflation/deflation pipeline; In described air suspension controller ECU, be provided with vehicle body height regulon and rigidity has a grade regulon; Described vehicle body height regulon: for when carrying out vehicle body height adjusting, open all described solenoid valves; Described rigidity has a grade regulon: for carrying out air spring rigidity while having level to regulate, close the solenoid valve being connected with compressed air source unit, the solenoid valve of simultaneously controlling other opens or closes, and realizes the variation of air spring rigidity.
2. pneumatic spring regulating system according to claim 1, it is characterized in that, described one section of above heavy caliber pipeline tandem arrangement, and the volume of each section of described heavy caliber pipeline is described pneumatic spring volume half, and the long-pending summation of the described large-diameter pipe appearance of a street is not more than the twice of described pneumatic spring volume.
3. pneumatic spring regulating system according to claim 1, it is characterized in that, described one section of above heavy caliber pipeline is arranged in parallel, and the volume of each section of described heavy caliber pipeline is described pneumatic spring volume half, and the long-pending summation of the described large-diameter pipe appearance of a street is not more than the twice of described pneumatic spring volume.
4. pneumatic spring regulating system according to claim 1, is characterized in that, described compressed air source unit is air compressor.
5. pneumatic spring regulating system according to claim 3, is characterized in that, the described solenoid valve at close described pneumatic spring air inlet place is arranged in every parallel branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210204488.0A CN102705420B (en) | 2012-06-19 | 2012-06-19 | Air spring regulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210204488.0A CN102705420B (en) | 2012-06-19 | 2012-06-19 | Air spring regulating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102705420A CN102705420A (en) | 2012-10-03 |
| CN102705420B true CN102705420B (en) | 2014-10-29 |
Family
ID=46898409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210204488.0A Expired - Fee Related CN102705420B (en) | 2012-06-19 | 2012-06-19 | Air spring regulating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102705420B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506402A (en) * | 2018-04-02 | 2018-09-07 | 海南大学 | A kind of shared gas chamber air spring system |
| CN109578497A (en) * | 2018-10-18 | 2019-04-05 | 清华大学 | Multi gear quickly compensates air damper |
| CN111347859B (en) * | 2018-12-21 | 2021-12-21 | 郑州宇通客车股份有限公司 | Vehicle-mounted battery anti-collision system and vehicle |
| CN111350899B (en) * | 2020-01-20 | 2021-07-30 | 杭州萧山金鹰交通设施有限公司 | Pipeline shock absorber support |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5413316A (en) * | 1993-12-13 | 1995-05-09 | Bridgestone/Firestone, Inc. | Adjustable rate air spring |
| US6905126B1 (en) * | 2001-01-03 | 2005-06-14 | Jesse A. Jurrens | Air-bag suspension system |
| CN2724800Y (en) * | 2004-09-07 | 2005-09-14 | 中国石油天然气股份有限公司华北石化分公司 | Double rotation petroleum pipeline of furnace for heating petroleum |
| CN102003488A (en) * | 2010-11-18 | 2011-04-06 | 江苏大学 | Variable-volume additional air chamber of constant internal pressure air spring |
| CN202188058U (en) * | 2011-07-12 | 2012-04-11 | 胡培培 | Air spring system |
-
2012
- 2012-06-19 CN CN201210204488.0A patent/CN102705420B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5413316A (en) * | 1993-12-13 | 1995-05-09 | Bridgestone/Firestone, Inc. | Adjustable rate air spring |
| US6905126B1 (en) * | 2001-01-03 | 2005-06-14 | Jesse A. Jurrens | Air-bag suspension system |
| CN2724800Y (en) * | 2004-09-07 | 2005-09-14 | 中国石油天然气股份有限公司华北石化分公司 | Double rotation petroleum pipeline of furnace for heating petroleum |
| CN102003488A (en) * | 2010-11-18 | 2011-04-06 | 江苏大学 | Variable-volume additional air chamber of constant internal pressure air spring |
| CN202188058U (en) * | 2011-07-12 | 2012-04-11 | 胡培培 | Air spring system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102705420A (en) | 2012-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102705420B (en) | Air spring regulating system | |
| EP3219522B1 (en) | Vehicle suspension control system with high flow exhaust mechanization | |
| US10539202B2 (en) | Vehicular shock absorber and method for controlling same | |
| EP2878464A3 (en) | Vehicle height adjustment apparatus | |
| CN105835649B (en) | A kind of hydro pneumatic suspension and its control method with variable volume auxiliary chamber | |
| CN108266486A (en) | Volume has the adjustable air spring additional air chamber of grade | |
| CN109606055A (en) | A kind of airsuspension system and method and the vehicle for installing the system | |
| CN102094927B (en) | Integral type pneumatic spring with controllable third-level damp and adaptive second-level stiffness | |
| CN204284293U (en) | A kind of adjustable damper valve and hydro pneumatic suspension | |
| CN105090315A (en) | Real-time adjusting device for pressure of air spring and auxiliary air chamber | |
| CN107725523A (en) | Load sensing multi-way valve and there is its engineering machinery | |
| CN105082916A (en) | Electronic control air suspension system control strategy employing pressure adjustment of auxiliary air chamber | |
| JP2011085209A (en) | Suspension device of large-sized vehicle | |
| ATE368583T1 (en) | DECENTRALIZED CLOSED LEVELING DEVICE FOR MOTOR VEHICLES | |
| CN109515104A (en) | A kind of wheel hub driving electric car airsuspension system with multilayer auxiliary chamber | |
| CN103899463A (en) | Multi-stage buffer type relief valve | |
| ATE530362T1 (en) | LEVEL CONTROL DEVICE | |
| CN109515105B (en) | Air suspension control method with multilayer additional air chambers for hub-driven electric vehicle | |
| CN109356955B (en) | Air spring with multilayer additional air chambers for hub-driven electric automobile | |
| CN103419591B (en) | High-pressure air source self-stabilization device of air suspension vehicle body height adjustment system | |
| CN203342759U (en) | Full-automatic stepless speed change type linear depressurization device | |
| CN102620020B (en) | Combined flow regulation valve | |
| CN203892437U (en) | Device for realtime adjusting of pressure of auxiliary air chamber of air spring | |
| CN102374203A (en) | Hydraulic control loop | |
| CN102128230A (en) | Integral three-level damping controlled oil gas spring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20160619 |