CN109318675A - A kind of interconnection type ISD suspension - Google Patents
A kind of interconnection type ISD suspension Download PDFInfo
- Publication number
- CN109318675A CN109318675A CN201810966497.0A CN201810966497A CN109318675A CN 109318675 A CN109318675 A CN 109318675A CN 201810966497 A CN201810966497 A CN 201810966497A CN 109318675 A CN109318675 A CN 109318675A
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- accumulator
- oil cylinder
- suspension
- rodless cavity
- control module
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/06—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid
- B60G21/073—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The present invention relates to a kind of interconnection type ISD suspensions, including accumulator, orifice valve, hydraulic cylinder, piston, piston rod, helix tube, connecting line, electrichydraulic control module, hydraulic cylinder is divided into epicoele and cavity of resorption by piston, hydraulic cylinder epicoele is connected to accumulator, orifice valve is arranged in accumulator inlet, the upper end of hydraulic cylinder and sprung mass are hinged, and the lower end of piston rod and unsprung mass are hinged, and each hydraulic cylinder realizes interconnection by helix tube, electrichydraulic control module and high-pressure oil pipe.Compared with tradition interconnects suspension, which can not only make full use of the rigidity of each suspension and damping for vibration damping, moreover it is possible to generate used appearance using the oil liquid of high-speed motion, greatly improve tyre dynamic load lotus and its high frequency peaks, enhance road friendliness, promote driving safety.
Description
Technical field
The present invention relates to a kind of hydro-pneumatic suspension system, the oil gas interconnection suspension system with used container is refered in particular to.
Background technique
Hydro pneumatic suspension is widely used in military vehicle, engineering truck and car racing car, can pass through different connection knots
Structure realizes that anti-side inclines, anti-pitching, balances the functions such as axle load, such as laterally interconnection, cross interconnected, mixing interconnection diversified forms, has
There is a heterodromous characteristic of anti-vehicle, hydraulic interconnection suspension can increase the pitching of suspension system/vertical when being installed on front and back wheel group
Mode rigidity can improve lateral/warp stiffness of suspension system when being installed on left and right wheels group.
Road friendliness causes damage and destruction for describing automobile tire dynamic loading road pavement.The big commercial vehicle of loading capacity
Usage amount increase with special vehicle is the main reason for leading to pavement destruction, this will cause huge urban road maintenance and pipe
Reason expense.The road stress that automobile generates and residual deformation and dynamic wheel load are related with static wheel load, and static load wheel load is by vehicle
Loading capacity determines that caused by dynamic wheel load is motivated the vibration generated by road roughness as vehicle, this patent can pass through
The used element that holds of fluid power effectively inhibits tyre dynamic load lotus, Proper Match vehicle parameter, road improvement friendly.
Used container is the new element proposed based on the electromechanical theory of similarity, has inertia characteristics identical with mass elements.It will
Used container introduces vehicle suspension system, ISD(inerter-spring-damper) suspension has become passive suspension technology hair
The new direction of exhibition, ISD suspension are able to suppress the low-frequency resonance of vehicle body, improve vehicle comfort, reduce wheel hop, improve tire
Ground connection property.
Summary of the invention
Tyre dynamic load lotus and the dynamic stroke of suspension can be reduced the purpose of the present invention is to provide a kind of, promotes tire road holding,
The interconnection type ISD suspension of road improvement friendly.
For achieving the above object, the technical scheme adopted by the invention is as follows, a kind of interconnection type ISD suspension, including electro-hydraulic
Control module, the first oil cylinder and the second oil cylinder are equipped between the electrichydraulic control module and the rodless cavity of first oil cylinder
First helix tube is also connected with the first accumulator on the rodless cavity of first oil cylinder, and the inlet of first accumulator is set
It is equipped with the first orifice valve；The electrichydraulic control module and second oil cylinder, rodless cavity between the second helix tube, institute are installed
It states and is also connected with the second accumulator on the rodless cavity of the second oil cylinder, the inlet of second accumulator is provided with the second damping
Valve；The rodless cavity and sprung mass of first oil cylinder and second oil cylinder are hinged, first oil cylinder and second oil
The piston rod of cylinder and unsprung mass are hinged.
It further include third oil cylinder and the 4th oil cylinder in above scheme, the electrichydraulic control module and the third oil cylinder
Third helix tube is installed between rodless cavity, third accumulator, the third are also connected on the rodless cavity of the third oil cylinder
The inlet of accumulator is provided with third orifice valve；The electrichydraulic control module and the 4th oil cylinder, rodless cavity between pacify
Equipped with the 4th helix tube, the 4th accumulator, the entrance of the 4th accumulator are also connected on the rodless cavity of the 4th oil cylinder
Place is provided with the 4th orifice valve；The rodless cavity and sprung mass of the third oil cylinder and the 4th oil cylinder are hinged, the third
The piston rod and unsprung mass of oil cylinder and the 4th oil cylinder are hinged.
In above scheme, first accumulator, second accumulator, the third accumulator and the 4th accumulation of energy
Device is using gas as elastic fluid, first accumulator, second accumulator, the third accumulator and the described 4th
The gas in gas spring in accumulator is separated with the oil liquid in pipe-line system by diaphragm of rubber or floating piston, gas bullet
Spring generates elastic force.
The present invention also protects a kind of interconnection type ISD to be suspended in application when inclination or pitching occur for vehicle.
The present invention also protects a kind of interconnection type ISD to be suspended in answering when inclination, pitching, warpage, vertical vibration occur for vehicle
With.
Beneficial effects of the present invention: the present invention is increased helix tube and is realized inertia energy storage using the mode of " interconnection ", compared to
The interconnection suspension of traditional sense can greatly improve tire ground connection property；Difference with the hydro pneumatic suspension with used container is, leads to
Different Join Shapes is crossed, suspension rate is further decreased, promotes ride performance, and improves suspension and moves stroke.
Detailed description of the invention
Fig. 1 is left and right communication type interconnection type ISD suspension schematic diagram.
Fig. 2 is front and back communication type interconnection type ISD suspension schematic diagram.
Fig. 3 is mixed connection formula interconnection type ISD suspension schematic diagram.
Fig. 4 is 5 kinds of connection forms that mixed connection formula suspension utilizes electrichydraulic control module to realize.
Fig. 5 is tyre dynamic load lotus power spectral density comparison diagram.
Fig. 6 is that suspension moves stroke power spectral density comparison diagram.
Fig. 7 is vehicle body acceleration power spectral density comparison diagram.
Fig. 8 is roll angle acceleration power spectral density comparison diagram.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Shown in embodiment one: Fig. 1 and Fig. 2, a kind of interconnection type ISD suspension, including electrichydraulic control module 8, the first oil cylinder 4-1
With the second oil cylinder 4-2, the first helix tube is installed between the electrichydraulic control module 8 and the rodless cavity of the first oil cylinder 4-1
6-1 is also connected with the first accumulator 1-1, the inlet of the first accumulator 1-1 on the rodless cavity of the first oil cylinder 4-1
It is provided with the first orifice valve 2-1；The electrichydraulic control module 8 and the second oil cylinder 4-2, rodless cavity between be equipped with second
Helix tube 6-2 is also connected with the second accumulator 1-2 on the rodless cavity of the second oil cylinder 4-1, the second accumulator 1-2's
Inlet is provided with the second orifice valve 2-2；The rodless cavity and sprung mass of the first oil cylinder 4-1 and the second oil cylinder 4-2
Hingedly, the piston rod and unsprung mass of the first oil cylinder 4-1 and the second oil cylinder 4-2 are hinged.
Vehicle suspension accesses spiral on the pressure duct of hydraulic cylinder connection on the basis of transverse hydraulic interconnects suspension
Pipe, piston area are greater than the sectional area of helical pipe, oil liquid can be made to rotate and store a large amount of kinetic energy in helix tube high speed,
Generate used hold；When the pure vertical vibration of vehicle body, left and right wheels bounce is consistent, and left and right hydraulic cylinder inner fluid pressure is almost the same, oil
Liquid is in connecting pipeline and helix tube, and the gas spring in accumulator mitigates impact at this time, reduces Oscillation Amplitude, throttle valve decaying
Vibration；When vehicle body rolls, left and right wheels bounce is inconsistent, it is assumed that under the action of tire bounce, in the hydraulic cylinder of left side
Oil pressure be higher than right side, oil liquid will in the case where left hand piston pushes, from left side hydraulic cylinder to the right hydraulic cylinder flowing, oil liquid is in spiral
Hydraulic energy is converted into kinetic energy by the rotation of pipe high speed, and left and right sides hydraulic cylinder internal pressure differences reduce, so that left and right sides suspension moves row
Journey reduces, while improving tyre dynamic load lotus, improves road friendliness.
Left and right interconnection architecture described in embodiment one kind mainly works in vehicle roll (Fig. 1), described in embodiment one
Interconnection architecture up and down (Fig. 2) is mainly worked in vehicle pitch.
Embodiment two: Fig. 3 is the embodiment two of interconnection type ISD suspension, on the basis of example 1, increases third oil
Cylinder 4-3 and the 4th oil cylinder 4-4 is equipped with third spiral shell between the electrichydraulic control module 8 and the rodless cavity of the third oil cylinder 4-3
Coil 6-3 is also connected with third accumulator 1-3 on the rodless cavity of the third oil cylinder 4-3, and the third accumulator 1-3's enters
Third orifice valve 2-3 is provided at mouthful；The electrichydraulic control module 8 and the 4th oil cylinder 4-4, rodless cavity between be equipped with
4th helix tube 6-4 is also connected with the 4th accumulator 1-4, the 4th accumulator 1- on the rodless cavity of the 4th oil cylinder 4-4
4 inlet is provided with the 4th orifice valve 2-4；The rodless cavity of the third oil cylinder 4-3 and the 4th oil cylinder 4-4 and suspension matter
Amount is hinged, and the piston rod and unsprung mass of the third oil cylinder 4-3 and the 4th oil cylinder 4-4 are hinged.
With embodiment one the difference is that, by adjust embodiment three described in electricity/liquid control module, to vehicle side
Incline, pitching, warpage, the different motions form such as vertical vibration, using shown in different Join Shapes (Fig. 4), grabs ground improving tire
While power, the optimal adjustment to body gesture is realized.
In two embodiments, the first accumulator 1-1, the second accumulator 1-2, the third accumulator 1-3 and
The 4th accumulator 1-4 is using gas as elastic fluid, the first accumulator 1-1, the second accumulator 1-2, institute
The oil liquid stated in gas and pipe-line system in the gas spring in third accumulator 1-3 and the 4th accumulator 1-4 passes through
Diaphragm of rubber or floating piston separate, and gas spring generates elastic force.
For comparative analysis interconnection type ISD suspension, the performance difference of tradition interconnection suspension and the passive suspension of tradition, this patent
Simulation analysis has been carried out, left and right communication type tradition interconnection suspension, left and right communication type ISD suspension and the passive suspension of tradition has been chosen and carries out
Comparison, specific structure is as shown in Figure 1 and Figure 2, and the passive suspension of tradition is damping and spring parallel-connection structure.Vehicle 20m/s is sailed in emulation
B grades of road surfaces are crossed to input as spectrum of road surface roughness, and assume suspension rate, damping and it is used hold be it is linear, the spring carried mass of three kinds of suspensions,
Nonspring carried mass and tire stiffness are equal, remaining suspension parameter is obtained by optimization.By emulating available Fig. 5~Fig. 8,
Respectively left and right interconnection type ISD suspension, the passive suspension of tradition, left and right communication type tradition interconnect the output power spectrum density pair of suspension
Than figure.
Although having greatly improved from fig. 5, it can be seen that tradition interconnects suspension tyre dynamic load lotus in low-frequency range peak value,
High band has obvious deterioration, and interconnection type ISD suspension is passively suspended in high band performance with tradition and is closer to.It can from Fig. 6
Out, it is narrow to move the more traditional interconnection suspension of stroke resonance bands for the suspension of interconnection type ISD suspension.From figure 7 it can be seen that and traditional suspension
It compares, interconnection type ISD suspension can obviously inhibit the body vibrations of 0~3Hz, but in low-frequency range vibration isolating effect not as good as tradition interconnection
Suspension.
1 random response of table exports root-mean-square value
As shown in Table 1, compared with traditional passive suspension, interconnection type ISD suspension and the roll angle acceleration of tradition interconnection suspension are equal
Root value has respectively reduced 7.3% and 21.2%；Vehicle body normal acceleration has respectively reduced 9.2% and 22.7%；Tyre dynamic load lotus is disliked
1.3% and 20.1% are changed；The suspension of interconnection type ISD suspension, which moves stroke, improves 11.1%, and tradition interconnection suspension has 0.9% evil
Change.
In conclusion interconnection type ISD suspension is generally better than the passive suspension of tradition, although in the anti-vibration performance ratio of low-frequency range
Tradition interconnection suspension slightly has deficiency, but can make up for it tyre dynamic load lotus in the deterioration of high band, improves tire ground connection property, lifting road
Road friendly.
Claims (5)
1. a kind of interconnection type ISD suspension, including electrichydraulic control module (8), the first oil cylinder (4-1) and the second oil cylinder (4-2),
It is characterized in that, the first helix tube is installed between the electrichydraulic control module (8) and the rodless cavity of first oil cylinder (4-1)
(6-1) is also connected with the first accumulator (1-1) on the rodless cavity of first oil cylinder (4-1), first accumulator (1-1)
Inlet be provided with the first orifice valve (2-1)；The electrichydraulic control module (8) and second oil cylinder (4-2), rodless cavity
Between be equipped with the second helix tube (6-2), be also connected with the second accumulator (1-2) on the rodless cavity of second oil cylinder (4-1),
The inlet of second accumulator (1-2) is provided with the second orifice valve (2-2)；First oil cylinder (4-1) and described second
The rodless cavity and sprung mass of oil cylinder (4-2) are hinged, the piston rod of first oil cylinder (4-1) and second oil cylinder (4-2)
It is hinged with unsprung mass.
2. a kind of interconnection type ISD suspension according to claim 1, which is characterized in that further include third oil cylinder (4-3) and
Four oil cylinders (4-4) are equipped with third spiral between the electrichydraulic control module (8) and the rodless cavity of the third oil cylinder (4-3)
It manages (6-3), is also connected with third accumulator (1-3) on the rodless cavity of the third oil cylinder (4-3), the third accumulator (1-
3) inlet is provided with third orifice valve (2-3)；The electrichydraulic control module (8) is with the 4th oil cylinder (4-4) without bar
4th helix tube (6-4) is installed between chamber, is also connected with the 4th accumulator (1- on the rodless cavity of the 4th oil cylinder (4-4)
4), the inlet of the 4th accumulator (1-4) is provided with the 4th orifice valve (2-4)；The third oil cylinder (4-3) and described
The rodless cavity and sprung mass of four oil cylinders (4-4) are hinged, the piston of the third oil cylinder (4-3) and the 4th oil cylinder (4-4)
Bar is hinged with unsprung mass.
3. a kind of interconnection type ISD suspension according to claim 2, which is characterized in that first accumulator (1-1), institute
The second accumulator (1-2), the third accumulator (1-3) and the 4th accumulator (1-4) is stated to be situated between using gas as elasticity
Matter, first accumulator (1-1), second accumulator (1-2), the third accumulator (1-3) and the 4th accumulation of energy
The gas in gas spring in device (1-4) is separated with the oil liquid in pipe-line system by diaphragm of rubber or floating piston, gas
Spring generates elastic force.
4. interconnection type ISD described in claim 1 is suspended in application when inclination or pitching occur for vehicle.
5. interconnection type ISD as claimed in claim 2 is suspended in application when inclination, pitching, warpage, vertical vibration occur for vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810966497.0A CN109318675B (en) | 2018-08-23 | 2018-08-23 | Interconnection formula ISD suspension |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810966497.0A CN109318675B (en) | 2018-08-23 | 2018-08-23 | Interconnection formula ISD suspension |
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| CN109318675B CN109318675B (en) | 2022-03-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110001340A (en) * | 2019-03-28 | 2019-07-12 | 江苏大学 | A kind of control method of airsuspension system and oil liquid connecting pipeline and oil liquid connecting pipeline |
| WO2021093533A1 (en) * | 2019-11-15 | 2021-05-20 | Ningbo Geely Automobile Research & Development Co., Ltd. | An anti-roll wheel suspension system for vehicles, and a method for performing anti-roll of a vehicle with an anti-roll wheel suspension system |
| CN113147298A (en) * | 2021-03-24 | 2021-07-23 | 江苏大学 | Multi-mode double-air-chamber oil-gas ISD suspension and working method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001340A (en) * | 2019-03-28 | 2019-07-12 | 江苏大学 | A kind of control method of airsuspension system and oil liquid connecting pipeline and oil liquid connecting pipeline |
| CN110001340B (en) * | 2019-03-28 | 2022-03-22 | 江苏大学 | Air suspension system, oil liquid communication pipeline and control method of oil liquid communication pipeline |
| WO2021093533A1 (en) * | 2019-11-15 | 2021-05-20 | Ningbo Geely Automobile Research & Development Co., Ltd. | An anti-roll wheel suspension system for vehicles, and a method for performing anti-roll of a vehicle with an anti-roll wheel suspension system |
| US11807064B2 (en) | 2019-11-15 | 2023-11-07 | Ningbo Geely Automobile Research & Development Co. | Anti-roll wheel suspension system for vehicles, and a method for performing anti-roll of a vehicle with an anti-roll wheel suspension system |
| CN113147298A (en) * | 2021-03-24 | 2021-07-23 | 江苏大学 | Multi-mode double-air-chamber oil-gas ISD suspension and working method thereof |
| CN113147298B (en) * | 2021-03-24 | 2024-01-05 | 江苏大学 | Multi-mode double-air-chamber oil-gas ISD suspension and working method thereof |
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