CN109733144A - Airsuspension system, the working method of airsuspension system and automobile - Google Patents
Airsuspension system, the working method of airsuspension system and automobile Download PDFInfo
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- CN109733144A CN109733144A CN201910058168.0A CN201910058168A CN109733144A CN 109733144 A CN109733144 A CN 109733144A CN 201910058168 A CN201910058168 A CN 201910058168A CN 109733144 A CN109733144 A CN 109733144A
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Abstract
The present invention provides a kind of airsuspension system, the working method and automobile of airsuspension system, the vehicle bridge of automobile is connect by airsuspension system with vehicle frame, airsuspension system includes the first air spring and the second air spring arranged in parallel, first air spring and the second air spring are both connected between vehicle frame and vehicle bridge, airsuspension system further includes height fixture, the both ends of height fixture are connect with vehicle frame and vehicle bridge respectively, the extending direction of height fixture is parallel to the telescopic direction of the first air spring, height fixture can be flexible along the telescopic direction of the first air spring.Airsuspension system can realize that height and rigidity decoupling are adjusted.
Description
Technical field
The present invention relates to automotive suspension technical fields, specifically, being to be related to a kind of airsuspension system, air suspension system
The working method and automobile of system.
Background technique
Airsuspension system is to guarantee the important device of the performances such as vehicle driving ride comfort, control stability.Air suspension
The core component of system is air spring.Under the control of ECU (electronic controller), the air pressure of air spring internal compressed gas
It can change with load and road conditions and be adjusted, under no matter fully loaded, unloaded or other spring carried mass, vehicle height
It all will not change too much, to significantly improve riding comfort.
Air spring is a kind of using the counter-force for the compressed air being sealed in inside rubber pneumatic bag as elastic restoring force
A kind of elastic element.Its working principle is that: it is filled with compressed air in air bag, forms a compressed air column, when oscillating load increases
The height of added-time, air spring reduce, and dischargeable capacity reduces, and the effective area of air column becomes larger in air bag, and rigidity becomes larger, therefore
The bearing capacity of air spring rises；When oscillating load reduces, the height of air spring is increased, and dischargeable capacity increases, air bag
The effective area of interior air column reduces, and rigidity reduces, therefore the bearing capacity decline of air spring.Therefore, in effective stroke
Interior, height, dischargeable capacity and the bearing capacity of air spring are smoothly flexible as the increase and decrease of oscillating load has occurred to be transmitted.
However, comfort and driving stability are a pair of contradictory bodies.It is general uncommon from the angle for improving car comfort
It hopes that the air spring of suspension can be relatively soft, its buffer function can be given full play to, but vehicle body certainly will be led in the process of moving in this way
Displacement become larger, then need to correspondingly improve bodywork height, this can increase the height of C.G. of vehicle body therewith again, be unfavorable for improving
Riding stability.On the other hand, it is the control stability for improving automobile, generally requires suspension that there is biggish spring rate and subtract
Device damping is shaken, this is obviously contradicted with the requirement for improving comfort.
Summary of the invention
The first object of the present invention is to provide a kind of airsuspension system realizing height and rigidity decoupling and adjusting.
The second object of the present invention is to provide a kind of working method of above-mentioned airsuspension system.
The third object of the present invention is to provide a kind of automobile with above-mentioned airsuspension system.
The fourth object of the present invention is to provide another automobile with above-mentioned airsuspension system.
To realize that above-mentioned first purpose, the present invention provide a kind of airsuspension system, the vehicle bridge of automobile passes through air suspension
System is connect with vehicle frame, and airsuspension system includes the first air spring and the second air spring arranged in parallel, and first
Air spring and the second air spring are both connected between vehicle frame and vehicle bridge, and airsuspension system further includes height fixture,
The both ends of height fixture are connect with vehicle frame and vehicle bridge respectively, and the extending direction of height fixture is parallel to the first air bullet
The telescopic direction of spring, height fixture can be along the flexible of the telescopic direction of the first air spring
One Preferable scheme is that, the first air spring and the second air spring carrying same load when, the first air bullet
The rigidity of spring is greater than the rigidity of the second air spring.
Further embodiment is that the first air spring is identical as the structure of the second air spring, the work of the first air spring
Make the swept volume that volume is greater than the second air spring.
One Preferable scheme is that, the minimum range between height fixture and the first air spring is fixed greater than height
Minimum range between device and the second air spring.
One Preferable scheme is that, airsuspension system have connection port, the first air spring by first height adjust
Economize on electricity magnet valve is connect with connection port, and the second air spring is connect by the second height adjustment solenoid valve with connection port.
One Preferable scheme is that, height fixture includes fixed link and retaining mechanism, and the extending direction of fixed link is flat
Row is in the telescopic direction of the first air spring, and the first end of fixed link is fixedly connected with vehicle frame, and the second end of fixed link passes through lock
Tight mechanism is connect with vehicle bridge, and retaining mechanism adjusts length of the fixed link between vehicle frame and vehicle bridge.
Further embodiment is that retaining mechanism is mounted in vehicle bridge and between vehicle frame and vehicle bridge.
One Preferable scheme is that, retaining mechanism is electrically connected with relay switch.
One Preferable scheme is that, one of the second air spring far from the first air spring is arranged in height fixture
Side.
One Preferable scheme is that, the second air spring is arranged in close to the one of the first air spring in height fixture
Side.
One Preferable scheme is that, the quantity of height fixture is two or more, and multiple height fixtures are arranged in
The side of second air spring.
Further embodiment is that the second air spring is close to the side of the first air spring and the second air spring far from
An at least height fixture is respectively set in the side of one air spring.
To realize that above-mentioned second purpose, the present invention provide a kind of working method of above-mentioned airsuspension system, including height
Regulating step and stiffness tuning step, stiffness tuning step are located at after height adjustment step；Wherein height adjustment step includes
Height fixture is in height-adjustable state, while being inflated to the first air spring and the second air spring, or
It deflates simultaneously to the first air spring and the second air spring, length of the height fixture between vehicle frame and vehicle bridge
It is consistent with the length of the first air spring, the length of the second air spring；The inflated for deflated end of first air spring, it is high
It spends fixed device and is in height stationary state.Stiffness tuning step includes that the second air spring is inflated or is deflated.
To realize that above-mentioned third purpose, the present invention provide a kind of automobile, which includes vehicle bridge, vehicle bridge and above-mentioned air
Suspension system.
One Preferable scheme is that, vehicle frame is arranged in parallel with vehicle bridge, and the first air spring, the second air spring and height are solid
Determine device and be each perpendicular to vehicle frame, the both ends of the first air spring are fixedly connected with vehicle frame and vehicle bridge respectively, the second air spring
Both ends are fixedly connected with vehicle frame and vehicle bridge respectively.
To realize that above-mentioned 4th purpose, the present invention provide another automobile, which includes vehicle frame, vehicle bridge and above-mentioned sky
Gas suspension system.
Further embodiment is that pilot hole is offered in vehicle bridge, and the extending direction of pilot hole is parallel to the extension of fixed link
The second end in direction, fixed link is threaded through in pilot hole, and the second end of fixed link can be moved along the extending direction of pilot hole.
The invention has the advantages that airsuspension system includes that biggish first air spring of swept volume and work are held
Lesser second air spring of product, controls the first air spring and the second air spring by two height adjustment solenoid valves respectively
Inflation/deflation process.When automobile will adjust bodywork height, at the same to the first air spring and the second air spring inflation or
It deflates simultaneously to the first air spring and the second air spring, while height fixture is in height-adjustable state, height
Length of the fixed device between vehicle frame and vehicle bridge is protected always with the length of the first air spring, the length of the second air spring
It holds consistent.After the distance between vehicle frame and vehicle bridge reach preset value, stop inflating the first air spring or deflating, simultaneously
Height fixture is in height stationary state.Then, the second air spring is inflated or is deflated, further change air
The rigidity of suspension system.In the stiffness tuning the step of, the setting of height fixture can prevent the second air spring to vehicle frame
The influence of distance between vehicle bridge.To realize that height and rigidity decoupling are adjusted, make airsuspension system before height is constant
Change rigidity is put, the purpose of driving stability and comfort is realized while being promoted.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of airsuspension system embodiment of the present invention.
Fig. 2 is the pneumatic diagram of airsuspension system embodiment of the present invention.
Fig. 3 is the control principle drawing of airsuspension system embodiment of the present invention.
The invention will be further described with reference to the accompanying drawings and embodiments.
Specific embodiment
Referring to Fig. 1, automobile includes vehicle frame 11, vehicle bridge 12, wheel 13, airsuspension system and air suspension control system,
Vehicle bridge 12 includes preceding bridge and rear axle, and the quantity of wheel 13 is four, the both ends of bridge before two wheels 13 are separately mounted to, and in addition two
A wheel 13 is separately mounted to the both ends of rear axle, and vehicle bridge 12 is connect by airsuspension system with vehicle frame 11.In other embodiments
In, the quantity of wheel 13 may be six or eight etc., and wheel 13 is installed in the both ends of vehicle bridge 12.
Airsuspension system includes four groups of adjusting components, and four groups of adjusting components are arranged respectively close to four wheels 13.Every group
Adjusting component includes 3, first air springs 4 of a height fixture and a second air bullet arranged in parallel
Spring 5, the first air spring 4, the second air spring 5 and height fixture 3 are both connected between vehicle frame and vehicle bridge, and when first
When air spring 4 and the second air spring 5 carry identical load, the rigidity of the first air spring 4 is greater than the second air spring 5
Rigidity.The present invention mainly adjusts the height of airsuspension system by the first air spring 4, by adjusting the second air bullet
Spring 5 further adjusts the rigidity of airsuspension system.The knot of first air spring 4 and the second air spring 5 in the present embodiment
Structure is identical, and the swept volume of the first air spring 4 is greater than the swept volume of the second air spring 5.The work of first air spring 4
Make that volume is larger, major function is to adjust the height of vehicle frame 11, for improving the control stability of automobile, the second air spring
5 swept volume is smaller, and major function is to adjust the rigidity of airsuspension system, to improve comfort when running car.
Vehicle frame 11 is arranged in parallel with vehicle bridge 12, and the first air spring 4, the second air spring 5 and height fixture 3 hang down
Directly it is arranged in vehicle frame 11, the both ends of the first air spring 4 are fixedly connected with vehicle frame 11 and vehicle bridge 12 respectively, the second air spring 5
Both ends be fixedly connected respectively with vehicle frame 11 and vehicle bridge 12.
Side of second air spring 5 far from the first air spring 4, and the fixed dress of height is arranged in height fixture 3
Set 3 and the first minimum range between air spring 4 be greater than most narrow spacing between height fixture 3 and the second air spring 5
From.The extending direction of height fixture 3 is parallel to the telescopic direction of the first air spring 4, and height fixture 3 can be along first
The telescopic direction of air spring 4 is flexible.
Height fixture 3 includes fixed link 31 and retaining mechanism 32, and the extending direction of fixed link 31 is parallel to the first sky
The first end of the telescopic direction of gas spring 4, fixed link 31 is fixedly connected with vehicle frame 11, and the second end of fixed link 31 passes through locking machine
Structure 32 is connect with vehicle bridge 12, and retaining mechanism 32 is mounted in vehicle bridge 12 and between vehicle frame 11 and vehicle bridge 12, solid for adjusting
Length of the fixed pole 31 between vehicle frame 11 and vehicle bridge 12, for example, retaining mechanism 32 is opened when needing to adjust the height of vehicle frame 11
It opens, fixed link 31 is in adjustable in length state, and length of the fixed link 31 between vehicle frame 11 and vehicle bridge 12 is with the first air
The elongation of spring 4 and the second air spring 5 and extend, contract with the shortening of the first air spring 4 and the second air spring 5
It is short；When needing the height of fixed vehicle frame 11, retaining mechanism 32 is closed, length of the fixed link 31 between vehicle frame 11 and vehicle bridge 12
It is constant, consequently facilitating the rigidity of the second air spring 5 is adjusted.Pilot hole 121, pilot hole 121 are offered in vehicle bridge 12
Extending direction be parallel to the extending direction of fixed link 31, the second end of fixed link 31 is threaded through in pilot hole 121, and fixed
The second end of bar 31 can be moved along the extending direction of pilot hole 121.
Referring to figs. 2 and 3, air suspension control system includes the first height adjustment solenoid valve 611, the second height adjustment electricity
It is magnet valve 612, relay switch 613, intake solenoid valve 621, first exhaust solenoid valve 631 and second exhaust solenoid valve 64, unidirectional
Valve, gas receiver 623, pressure switch 624, exhaust silencer 60, air dryer 67, air compressor 68 and air cleaner
69, overvoltage protection valve 66, ECU7, alarm 81, relay 80, motor 88, braking sensor 82, throttle position sensor
83, steering wheel angle sensor 84, height sensor 85 and velocity sensor 86 etc..Wherein, alarm 81, relay
80, braking sensor 82, throttle position sensor 83, steering wheel angle sensor 84, height sensor 85 and speed
Sensor 86, the first height adjustment solenoid valve 611, the second height adjustment solenoid valve 612, relay switch 613 etc. are and ECU7
Connection.Air compressor 68 is electrically connected by motor 88 with relay 80.
Airsuspension system has connection port, and connection port is used to supply to the first air spring 4 and the second air spring 5
Gas, and for the gas in the first air spring 4 and the second air spring 5 to be discharged.One the first air spring 4 passes through one
A first height adjustment solenoid valve 611 is connect with connection port, and second air spring 5 passes through the second height adjustment electricity
Magnet valve 612 is connect with connection port.First height adjustment solenoid valve 611 is used to open or close the gas circuit of the first air spring 4,
Second height adjustment solenoid valve 612 is used to open or close the gas circuit of the second air spring 5.
The air circuit connection relationship of air suspension control system is that air compressor 68 is separately connected air cleaner 69 and sky
Gas dryer 67, and air dryer 67 is connect by diaphragm valve 65 with exhaust silencer 60, air cleaner 69 and diaphragm
Valve 65 is connect with second exhaust solenoid valve 64, while second exhaust solenoid valve 64 is connect with overvoltage protection valve 66.It is air-dried
Device 67 is connect by the first check valve 671 with gas receiver 623, and pressure switch 624, pressure switch 624 are connected on gas receiver 623
For controlling the air pressure in gas receiver 623.Intake solenoid valve 621 is connect by second one-way valve 622 with gas receiver 623, and first
Exhaust solenoid valve 631 is connect by third check valve 632 with air dryer 67.Intake solenoid valve 621 is adjusted by the first height
Economize on electricity magnet valve 611 is connect with the first air spring 4, and intake solenoid valve 621 is empty by the second height adjustment solenoid valve 612 and second
Gas spring 5 connects, and first exhaust solenoid valve 631 is connect by the first height adjustment solenoid valve 611 with the first air spring 4, the
One exhaust solenoid valve 631 is connect by the second height adjustment solenoid valve 612 with the second air spring 5.Connection port is located at air inlet
Between solenoid valve 621 and the first height adjustment solenoid valve 611, and it is connected to port and is located at first exhaust solenoid valve 631 and second
Between height adjustment solenoid valve 612.
One retaining mechanism 32 is electrically connected with a relay switch 613, and relay switch 613 is electrically connected with ECU7.After
Electric switch 613 is for opening or closing retaining mechanism 32, and when opening retaining mechanism 32, height adjustment device is fixed in height
State；When closing retaining mechanism 32, height adjustment device is in height-adjustable state.Retaining mechanism 32 can be by holding component
It is constituted with two cylinders, holds component tightly and be mounted in vehicle bridge, two cylinders are electrically connected with relay switch 613, hold component tightly
Including two holding components, two are held tightly the two sides that component is oppositely arranged on fixed link 31, a cylinder and a holding component
Connection, the direction that component is held in cylinder driving to separate and close fixed link 31 tightly is mobile, enables two holding components from fixation
The two sides of bar 31 are fixedly clamped bar 31, to realize the adjusting of length of the fixed link 31 between vehicle frame 11 and vehicle bridge 12.When need
When adjusting the height of vehicle frame 11, two cylinders respectively drive two holding components and are separated from each other, and fixed link 31 is in length can
Adjustment state, when needing the height of fixed vehicle frame 11, cylinder drives two holding components close to each other and holds fixed link 31 tightly,
Length of the fixed link 31 between vehicle frame 11 and vehicle bridge 12 is constant, consequently facilitating the rigidity of the second air spring 5 is adjusted.
Preferably, be provided with multiple location holes in fixed link 31, hold component tightly and be provided with positioning pin, when fixed link 31 is in length can not
When adjustment state, positioning pin is inserted into positioning hole, prevents fixed link 31 from bouncing back.When fixed link 31 is in adjustable in length state
When, positioning pin is exited from positioning hole.
When running car, the sensors such as height sensor 85, velocity sensor 86 detect motion state of automobile
Then the signal of motion state of automobile is sent to ECU7 by CAN network by signal, ECU7 analyzes motion state of automobile
Judgement, and control signal is exported to air suspension control system.Air suspension control system is according to control signal to each solenoid valve
With relay switch 613 is equal carries out switch control, thus the first air spring 4 of control and the second air spring 5 be inflated or
It deflates, to realize the function of airsuspension system.
Air compressor 68 is sucked the air in atmosphere by air cleaner 69, and compressed air is through being air-dried
Device 67 is sent into gas receiver 623.Second exhaust solenoid valve 64 is used to control the unlatching of diaphragm valve 65, when second exhaust solenoid valve 64
When in exhaust condition, one end that diaphragm valve 65 is connect with second exhaust solenoid valve 64 is in normal pressure state, diaphragm valve 65 and sky
Air dryer 67, first exhaust solenoid valve 631, the first height adjustment solenoid valve are successively passed through in one end that gas dryer 67 connects
611 are connected to the inside of the first air spring 4, and one end that diaphragm valve 65 is connect with air dryer 67 is successively by being air-dried
Device 67, first exhaust solenoid valve 631, the second height adjustment solenoid valve 612 are connected to the inside of the second air spring 5, at this time film
Plate valve 65 is on position, and the gas inside the first air spring 4 passes through the first height adjustment solenoid valve 611, first exhaust
It is discharged into atmosphere after solenoid valve 631, third check valve 632, air dryer 67, diaphragm valve 65 by exhaust silencer 60,
Gas inside second air spring 5 passes through the second height adjustment solenoid valve 612, first exhaust solenoid valve 631, third check valve
632, it is discharged into atmosphere after air dryer 67, diaphragm valve 65 by exhaust silencer 60.
When second row air valve is in non-exhaust condition, the both ends of diaphragm valve 65 are ended under high pressure, air compressor 68
The compressed air of discharge enters in gas receiver 623 after air dryer 67 and the first check valve 671.In addition, overvoltage protection
Valve 66 is used to limit the pressure of air suspension control system, once system pressure is more than preset value, overvoltage protection valve 66 i.e. with it is big
Conductance is logical, reduces system pressure by deflating.
The working method of airsuspension system includes height adjustment step and stiffness tuning step.
Height adjustment step includes: firstly, relay switch 613 is closed, and retaining mechanism 32 is in the open state, at this point,
Height fixture 3 is in height-adjustable state, while being inflated to the first air spring 4 and the second air spring 5, or
Person simultaneously deflates to the first air spring 4 and the second air spring 5, and the first air spring 4 is synchronous with the second air spring 5
It stretches, the second end of fixed link 31 is threaded through in pilot hole 121, and the second end of fixed link 31 is along pilot hole 121
Extending direction it is mobile, the length of length of the fixed link 31 positioned at vehicle frame 11 and vehicle bridge 12 between and the first air spring 4, second
The length of air spring 5 is always consistent.Then, after the height between vehicle frame 11 and vehicle bridge 12 reaches the height of requirement,
The inflated for deflated end of first air spring 4, relay switch 613 are opened, and retaining mechanism 32 is in close state, i.e. locking machine
Structure 32 locks fixed link 31, and fixed link 31 can not be moved along the extending direction of pilot hole 121, at this time height fixture 3
In height stationary state, by the height adjustment to vehicle frame 11 to meet driving stability requirement.Airsuspension system at this time
Rigidity k be the first air spring 4 the sum of rigidity k1 and the rigidity k2 of the second air spring 5.
After the completion of stiffness tuning step includes: height adjustment step, for the needs for improving driver comfort, then to air
The rigidity of suspension system is adjusted, and by the way that the second air spring 5 is inflated or is deflated, realizes the second air spring 5
The variation of rigidity k2, and then the global stiffness k=k1+k2 of airsuspension system is made to change, to make the airsuspension system
Rigidity can be changed in the case where height is constant, realize while being promoted the purpose of driving stability and comfort.
In addition, height fixture also can be set in the second air spring close to the side of the first air spring.One group
Adjusting component also may include more than two height fixtures, and multiple height fixtures are arranged in the second air spring
Side, side point of second air spring close to the side and the second air spring of the first air spring far from the first air spring
At least one height fixture is not set.Retaining mechanism also may be mounted in vehicle bridge and be located at one of vehicle bridge far from vehicle frame
Side.The structure of first air spring and the second air spring can not also be identical, such as the first air spring can be empty for bellows
Gas spring, the second air spring can be diaphragm type air spring, when the first air spring and the carrying of the second air spring are identical
When load, the rigidity of the first air spring is greater than the rigidity of the second air spring.Above-mentioned change is able to achieve the purpose of the present invention.
Therefore airsuspension system includes biggish first air spring of swept volume and swept volume lesser
Two air springs control the inflation/deflation mistake of the first air spring and the second air spring by two height adjustment solenoid valves respectively
Journey.When automobile will adjust bodywork height, while to the first air spring and the inflation of the second air spring or simultaneously to first
Air spring and the second air spring are deflated, while height fixture is in height-adjustable state, height fixture position
Length between vehicle frame and vehicle bridge is consistent with the length of the first air spring, the length of the second air spring.Work as vehicle frame
After the distance between vehicle bridge reaches preset value, stop inflating the first air spring or deflating, while height fixture
In height stationary state.Then, the second air spring is inflated or is deflated, further change the rigid of airsuspension system
Degree.In the stiffness tuning the step of, the setting of height fixture can prevent the second air spring to the spacing of vehicle frame and vehicle bridge
From influence.To realize that height and rigidity decoupling are adjusted, airsuspension system is made to change rigidity under the premise of height is constant,
Realize while being promoted the purpose of driving stability and comfort.
It finally it is emphasized that the above is only a preferred embodiment of the present invention, is not intended to restrict the invention, for this
For the technical staff in field, the present invention can have various change and change, all within the spirits and principles of the present invention, done
Any modification, equivalent substitution, improvement and etc., should all be included in the protection scope of the present invention.
Claims (17)
1. the vehicle bridge of airsuspension system, automobile is connect by the airsuspension system with vehicle frame, the airsuspension system
Including the first air spring and the second air spring arranged in parallel, first air spring and the second air spring are equal
It is connected between vehicle frame and vehicle bridge；
It is characterized by:
The airsuspension system further includes height fixture, the both ends of the height fixture respectively with the vehicle frame and
The vehicle bridge connection, the extending direction of the height fixture is parallel to the telescopic direction of first air spring, described
Height fixture can be flexible along the telescopic direction of first air spring.
2. airsuspension system according to claim 1, it is characterised in that:
When first air spring and second air spring carrying same load, the rigidity of first air spring is big
In the rigidity of second air spring.
3. airsuspension system according to claim 2, it is characterised in that:
First air spring is identical as the structure of second air spring, and the swept volume of first air spring is big
In the swept volume of second air spring.
4. airsuspension system according to any one of claims 1 to 3, it is characterised in that:
Minimum range between the height fixture and first air spring is greater than the height fixture and institute
State the minimum range between the second air spring.
5. airsuspension system according to any one of claims 1 to 3, it is characterised in that:
The airsuspension system have connection port, first air spring by the first height adjustment solenoid valve with it is described
It is connected to port connection, second air spring is connect by the second height adjustment solenoid valve with the connection port.
6. airsuspension system according to any one of claims 1 to 3, it is characterised in that:
The height fixture includes fixed link and retaining mechanism, and it is empty that the extending direction of the fixed link is parallel to described first
The telescopic direction of gas spring, the first end of the fixed link are fixedly connected with the vehicle frame, and the second end of the fixed link passes through
The retaining mechanism is connect with the vehicle bridge, and the retaining mechanism adjusts the fixed link between the vehicle frame and the vehicle bridge
Length.
7. airsuspension system according to claim 6, it is characterised in that:
The retaining mechanism is mounted in the vehicle bridge and between the vehicle frame and the vehicle bridge.
8. airsuspension system according to claim 6, it is characterised in that:
The retaining mechanism is electrically connected with relay switch.
9. airsuspension system according to any one of claims 1 to 3, it is characterised in that:
Side of second air spring far from first air spring is arranged in the height fixture.
10. airsuspension system according to any one of claims 1 to 3, it is characterised in that:
Second air spring is arranged in close to the side of first air spring in the height fixture.
11. airsuspension system according to any one of claims 1 to 3, it is characterised in that:
The quantity of the height fixture is two or more, and multiple height fixtures are arranged in the second air bullet
The side of spring.
12. airsuspension system according to claim 11, it is characterised in that:
Second air spring is close to the side of first air spring and second air spring far from described first
An at least height fixture is respectively set in the side of air spring.
13. the working method of airsuspension system, which is characterized in that airsuspension system is that the claims 1 to 12 are any
Airsuspension system described in, the working method of the airsuspension system include height adjustment step and stiffness tuning step
Suddenly, the stiffness tuning step is located at after the height adjustment step；
The height adjustment step includes:
The height fixture is in height-adjustable state, while to first air spring and the second air bullet
Spring is inflated, or is deflated simultaneously to first air spring and second air spring, and the height is fixed
Length of the device between the vehicle frame and the vehicle bridge and the length of first air spring, second air spring
Length be consistent；
The inflated for deflated end of first air spring, the height fixture are in height stationary state；
The stiffness tuning step includes:
Second air spring is inflated or is deflated.
14. automobile, including vehicle frame and vehicle bridge, which is characterized in that the automobile further includes any one of claim 1 to 5 or 9 to 12
Described in any item airsuspension systems.
15. automobile according to claim 14, it is characterised in that:
The vehicle frame is arranged in parallel with the vehicle bridge, and first air spring, second air spring and the height are solid
Determine device and be each perpendicular to the vehicle frame, the both ends of first air spring are fixed with the vehicle frame and the vehicle bridge respectively to be connected
It connects, the both ends of second air spring are fixedly connected with the vehicle frame and the vehicle bridge respectively.
16. automobile, including vehicle frame and vehicle bridge, which is characterized in that the automobile further includes that claim 6 to 8 is described in any item
Airsuspension system.
17. automobile according to claim 16, it is characterised in that:
Pilot hole is offered in the vehicle bridge, the extending direction of the pilot hole is parallel to the extending direction of the fixed link, institute
The second end for stating fixed link is threaded through in the pilot hole, and the second end of the fixed link can be along the extension side of the pilot hole
To movement.
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| CN201910058168.0A CN109733144B (en) | 2019-01-22 | 2019-01-22 | Air suspension system, working method of air suspension system and automobile |
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| CN201910058168.0A CN109733144B (en) | 2019-01-22 | 2019-01-22 | Air suspension system, working method of air suspension system and automobile |
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| CN109733144B CN109733144B (en) | 2020-10-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111645474A (en) * | 2019-08-27 | 2020-09-11 | 西华大学 | Variable-stiffness auxiliary device for truck leaf spring suspension |
| CN114396448A (en) * | 2022-01-20 | 2022-04-26 | 重庆理工大学 | Air spring and height and rigidity decoupling method thereof |
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| US3145985A (en) * | 1961-09-07 | 1964-08-25 | Bourcier Christian-Marie-Luci | Vehicle suspension devices |
| CN101844494A (en) * | 2009-03-11 | 2010-09-29 | 阿文美驰技术有限责任公司 | Cross-coupled variable piston air suspension |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111645474A (en) * | 2019-08-27 | 2020-09-11 | 西华大学 | Variable-stiffness auxiliary device for truck leaf spring suspension |
| CN111645474B (en) * | 2019-08-27 | 2021-09-03 | 西华大学 | Variable-stiffness auxiliary device for truck leaf spring suspension |
| CN114396448A (en) * | 2022-01-20 | 2022-04-26 | 重庆理工大学 | Air spring and height and rigidity decoupling method thereof |
| CN114396448B (en) * | 2022-01-20 | 2024-02-23 | 重庆理工大学 | Air spring and decoupling method for height and rigidity of air spring |
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| Publication number | Publication date |
|---|---|
| CN109733144B (en) | 2020-10-23 |
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