CN208134006U - Hydraulic active variation rigidity lateral stability lever system - Google Patents
Hydraulic active variation rigidity lateral stability lever system Download PDFInfo
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- CN208134006U CN208134006U CN201820324008.7U CN201820324008U CN208134006U CN 208134006 U CN208134006 U CN 208134006U CN 201820324008 U CN201820324008 U CN 201820324008U CN 208134006 U CN208134006 U CN 208134006U
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- stabilizer bar
- lateral stability
- lever system
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Abstract
A kind of hydraulic active variation rigidity lateral stability lever system, including, stabilizer bar, secondary hydraulic cylinder, oil circuit component, suspension link, fixing seat and main hydraulic cylinder, wherein the stabilizer bar is installed on the car body by the fixing seat；The stabilizer bar, one end are connected with main hydraulic cylinder, and the other end is connected with one end of the suspension link；The other end of the suspension link is connected with suspension；The oil circuit component is for connecting main hydraulic cylinder and secondary hydraulic cylinder；The main hydraulic cylinder is connected by the oil circuit component with the secondary hydraulic cylinder.By external decelerating motor and drive mechanism, precommpression is carried out to the elastic element on external hydraulic cylinder, thus it is possible to vary the mechanical characteristic of system, to dynamically change the anti-roll stiffness of stabilizer bar.
Description
Technical field
The present invention relates to technical field of vehicle control, especially design a kind of hydraulic active variation rigidity lateral stability leverage
System.
Background technique
Stabilizer bar（Sway bar）It is a component part of automotive suspension, main purpose is for reducing vehicle turning
When body roll, to use the lesser bearing spring of rigidity, to improve vehicle ride quality；The sway bar of automobile front-rear axle
Rigidity, which is arranged in pairs or groups, can also change the dynamic characteristic of automobile chassis, that is, adjust the understeer and ovdersteering characteristic of automobile chassis,
Automobile is set to obtain desired ride characteristic；On certain off-road vehicles, it is also desirable to reduce stabilizer bar rigidity or even disconnect it
Connection allows left and right sides suspension to obtain bigger stroke, to improve vehicle in the handling capacity of rough ground.
Mechanical type horizontal stabiliser bar is the torsion-bar spring that a shape is similar to U-typed, and both ends linking arm passes through connecting rod
It is connected on suspension with flexural pivot.When nonsynchronous compression, extensional motion occur for left and right sides suspension, suspension is driven horizontal by connecting rod
It is moved to the linking arm of stabiliser bar, and then torsional load is applied with to the torsion bar portion of connection left and right linking arm；It is fixed according to elasticity
Rule it is found that torsion bar portion twists after deformation, make by the way that connecting rod is counter by the elastic force for the extraneous torsional load that can create antagonism, this power
For suspension, the as resistance of left and right sides suspension Asynchrony.It is generally used using the automobile of independent suspension independent
Stabilizer bar；Certain arm-type semi-independent suspension bridges of dragging are used as torsion-bar spring using suspension itself to play stabilizer bar
Effect.
The torsion stiffness of above-mentioned stabilizer bar（Or the anti-roll stiffness to vehicle）In suspension geometry and anti-dumping stick force
It learns after structure design determines and determines, can not make again and change and adjust；Some high-performance（Movement is biased to）Vehicle brand or third party
Spare and accessory parts brand provides multiple link holes arriving torsion bar portion offset or dish and not waiting on stabilizer bar linking arm, by that will connect
Bar is connected on different holes, thus it is possible to vary stabilizer bar is to the anti-roll stiffness of vehicle body, but the conciliation is that have grade and must
It must be completed after parking by dismounting mode.
Summary of the invention
In order to solve the shortcomings of the prior art, it is horizontal that the purpose of the present invention is to provide a kind of hydraulic active variation rigidities
To stabilizer bar system.
To achieve the above object, the present invention provides a kind of hydraulic active variation rigidity lateral stability lever system, including, laterally
Stabiliser bar, secondary hydraulic cylinder, oil circuit component, suspension link, fixing seat and main hydraulic cylinder, which is characterized in that
The stabilizer bar is installed on the car body by the fixing seat；
The stabilizer bar, one end are connected with main hydraulic cylinder, and the other end is connected with one end of the suspension link
It connects；The other end of the suspension link is connected with suspension；
The main hydraulic cylinder is connected by the oil circuit component with the secondary hydraulic cylinder.
Further, the main hydraulic cylinder, including, rotary inner core and main hydraulic cylinder shell, the rotary inner core are provided with
A pair of symmetrical protrusion, is divided into four for the main hydraulic cylinder inner cavity together with the tab on the main hydraulic cylinder shell
Cavity.
Further, the stabilizer bar, including left stabilizer bar and right stabilizer bar；The suspension link,
Including left suspension link and right suspension link；
The right stabilizer bar, one end are connected with main hydraulic cylinder, one end of the other end and the right suspension link
It is connected；
The left stabilizer bar, one end are connected with main hydraulic cylinder, one end of the other end and the left suspension link
It is connected.
Further, the left and right stabilizer bar is fixedly connected with the main hydraulic cylinder shell or rotary inner core respectively.
Further, the secondary hydraulic cylinder, including, mandrel, secondary hydraulic cylinder housing, motor, motor shaft, outside electric motor protecting
Shell, spring tray, reset spring, spring overcoat cylinder and shell, wherein
It is connected through a screw thread between the spring tray and the mandrel, and is connected by spline with the spring overcoat cylinder
It connects；
The spring overcoat cylinder is fixedly connected on the hydraulic cylinder housing of pair, so that the spring tray is along the mandrel
Axial movement.
Further, it being formed with spline inside the spring overcoat cylinder, the spring tray is externally formed with spline,
The inside of the spring overcoat cylinder connect cooperation by spline with the outside of the spring tray.
Further, it is provided with splined hole inside the left side of the mandrel, is connect with the motor shaft by spline.
Further, the reset spring is arranged between the hydraulic cylinder housing of the pair and spring tray, and the core
Axis passes through.
Further, the spring tray, including left spring pallet, right spring tray, when the mandrel is by the motor
When driving rotation, the left and right spring tray moves in reverse direction, realizes while synchronizing holddown spring or synchronous pull-off spring.
The present invention solves technical solution used by disadvantages mentioned above：Torsion-bar spring is replaced using a swivel hydraulic cylinder
The left and right sides of stabilizer bar is separated from structure, is disconnected by part.It is hydraulic when Asynchrony occurs for two sides suspension
Hydraulic oil in cylinder will be extruded, suck, and convert the Asynchrony of suspension to the flowing of hydraulic oil.In rotating hydraulic cylinder
Fluid pressure line is connected on external hydraulic cylinder, is configured with elastic element on external hydraulic cylinder, in running of hydraulic power oil, external liquid
Pressure cylinder piston moves and deformation of elastic element is made to generate resistance, so that system be made to obtain the energy of anti-suspension Asynchrony
Power.By external decelerating motor and drive mechanism, precommpression is carried out to the elastic element on external hydraulic cylinder, thus it is possible to vary system
Mechanical characteristic, to dynamically change the anti-roll stiffness of stabilizer bar.Regulative mode be motorized adjustment, step-less adjustment,
Driver is adjusted in driver's cabin by switch, button or vehicle-mounted computer, is completed without being dismounted by suspension frame structure, and
It can complete to adjust in vehicle travel process；Further, the torsion stiffness of adjusting can also be according to vehicle driving-cycle and driving
Mode etc. is intelligently adjusted by vehicle-mounted computer.
Hydraulic active variation rigidity lateral stability lever system of the invention is imitated with following technology compared with the existing technology
Fruit：
1）Propose a kind of scheme of adjustable stabilizer bar rigidity；2）The adjusting is completed by adjusting motor
, do not have to dismounting vehicle structure, and can in vehicle traveling, stabilizer bar work in（When there is torque）, adjust at any time
Section, it is unrestricted；
3）By the design of master-pair hydraulic cylinder form, so that elastic mechanism and regulating mechanism are external, lateral stability bar body
On do not increase support multimass and rotary inertia, optimize the kinetic characteristic of suspension system；
4）By the adjusting of stabilizer bar rigidity, the ability that adjustable vehicle chassis anti-side is inclined, solve anti-side incline and
The contradiction of comfort；
5）By the adjusting of stabilizer bar rigidity, the steering characteristic of adjustable vehicle chassis meets special use
It is required that for example in normally travel, increasing the anti-roll stiffness of headstock and reducing the anti-roll stiffness of the tailstock, be partial to chassis
Understeer increases straight line stability and the safety on chassis；It is driven in movement, increase the anti-roll stiffness of the tailstock and reduces vehicle
The health roll stiffness of head, makes chassis be partial to ovdersteering, and the flexibility for increasing chassis promotes vehicle performance texture；
6）Pass through reduce stabilizer bar rigidity, it is possible to reduce left and right sides wheel interferes with each other, for example, vehicle into
When row rough ground is current, respective suspension travel can be increased by reducing the interference of left and right sides wheel, make wheel preferably snugly
Face keeps wheel to the adhesive force on ground, improves vehicle handling capacity.Further, the precommpression of reset spring can also be eliminated,
So that the torsional rigidity of stabilizer bar is reduced to zero, thoroughly disconnects the interconnection of left and right sides suspension.
The present invention can adjust the antitorque of stabilizer bar in real time（Anti- inclination）Rigidity is not necessarily to by way of dismounting, can
To be adjusted in vehicle travel process, to the driving status of vehicle without particular/special requirement when adjusting；This adjusting is active
It adjusts, torsional rigidity is actively adjusted by driver or computer system；Torsional rigidity is electrodeless adjustment.It, can by above-mentioned adjusting
To realize to the adjusting of transverse stiffness of suspension, the adjusting of vehicle chassis steering characteristic and increase offroad vehicle suspension travel to increase
Strong cross-country handling capacity（Reduce or even eliminate anti-roll stiffness）.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, and with it is of the invention
Embodiment together, is used to explain the present invention, and is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is hydraulic active variation rigidity lateral stability lever system schematic perspective view according to the present invention；
Fig. 2 is the horizontal section of the main hydraulic cylinder of hydraulic active variation rigidity lateral stability lever system according to the present invention
Figure；
Fig. 3 is that the secondary hydraulic cylinder internal structure of hydraulic active variation rigidity lateral stability lever system according to the present invention is illustrated
Figure；
In figure：The right stabilizer bar of 1-；The left stabilizer bar of 2-；3- pair hydraulic cylinder；The first oil circuit of 4-；The second oil circuit of 5-；
The first hydraulic oil pipe of 6-；The second hydraulic oil pipe of 7-；8- suspension link；9- fixing seat；10- main hydraulic cylinder；31- mandrel；32- pair liquid
Cylinder pressure shell；33- motor；34- motor shaft；35- electric motor protecting shell；36- spring tray；37- reset spring；Outside 38- spring
Sleeve；39- shell.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Fig. 1 is hydraulic active variation rigidity lateral stability lever system schematic perspective view according to the present invention, such as Fig. 1 institute
Show, hydraulic active variation rigidity lateral stability lever system of the invention, including, right stabilizer bar 1, left stabilizer bar 2, pair
Hydraulic cylinder 3, the first oil circuit 4, the second oil circuit 5, the first hydraulic oil pipe 6, the second hydraulic oil pipe 7, suspension link 8, fixing seat 9 and master
Hydraulic cylinder 10.
Right stabilizer bar 1 and left stabilizer bar 2 are connected by main hydraulic cylinder 10, and wherein main hydraulic cylinder 10 is rotation liquid
Cylinder pressure.Main hydraulic cylinder internal structure is as shown in Fig. 2, main hydraulic cylinder includes rotary inner core 101 and main hydraulic cylinder shell 102.Zuo Heng
It is connected respectively with the shell of main hydraulic cylinder with rotary inner core to stabiliser bar 2 with right stabilizer bar 1（It connects firmly）.Secondary hydraulic cylinder 3
Fixed on car body, shell is totally-enclosed, and moving component is all in closure, external movement-less part.Stabilizer bar main body
（Right stabilizer bar 1 and left stabilizer bar 2）It is installed on car body by fixing seat 9.
When assymmetric motion occurs for left and right vehicle wheel side suspension, left stabilizer bar 2 and the right side can be affected by suspension link 8
Asynchronous rotation occurs for stabilizer bar 1, and the shell and rotary inner core in turn resulting in main hydraulic cylinder relatively rotate, thus will
Hydraulic oil in main hydraulic cylinder 10 is squeezed out or is sucked in hydraulic cylinder.
Fig. 2 is the horizontal section of the main hydraulic cylinder of hydraulic active variation rigidity lateral stability lever system according to the present invention
Figure, as shown in Fig. 2, the first oil circuit（Collecting pipe）4（2, the upper left being located in Fig. 2 and lower right）Pass through main liquid respectively
Hydraulic oil duct on cylinder pressure shell is connected to the hydraulic oil chamber of upper left and lower right, and is connected to by external oil pipe；Top
The first oil circuit 4 secondary hydraulic cylinder 3 is connected to by the first hydraulic oil pipe 6.Similarly, the second oil circuit（Collecting pipe）5（2）Connect respectively
It is connected to the hydraulic oil chamber of upper right side and lower left, and is connected to by external oil pipe, then secondary liquid is connected to by the second hydraulic oil pipe 7
Cylinder pressure 3.When the rotary inner core 101 of main hydraulic cylinder 10 in Fig. 2 according to being rotated clockwise, and main hydraulic cylinder shell 102 is motionless
When, the hydraulic fluid chamber building volume of the upper left and bottom right in main hydraulic cylinder in Fig. 2 reduces, and hydraulic oil is forced out, by the first oil
It is pumped by the first hydraulic oil pipe 6 to secondary hydraulic cylinder 3 behind road 4；Meanwhile upper right and the hydraulic fluid chamber building volume of lower-left increase, liquid
Pressure is reached by the second hydraulic oil pipe 7 is drawn into main hydraulic cylinder by the hydraulic oil duct on hydraulic cylinder housing 102 after second oil circuit 5
In 10.Conversely, above-mentioned running of hydraulic power oil direction is anti-when main hydraulic cylinder rotary inner core 101 in Fig. 2 by rotating counterclockwise
To.
After relative rotation occurs for the shell 102 of main hydraulic cylinder and rotary inner core 101, the hydraulic oil that pumps out and be pumped into is along the
One hydraulic oil pipe 6 and the second hydraulic oil pipe 7 reach secondary hydraulic cylinder 3.
Fig. 3 is that the secondary hydraulic cylinder internal structure of hydraulic active variation rigidity lateral stability lever system according to the present invention is illustrated
Figure, as shown in figure 3, secondary hydraulic cylinder 3 is made of the mandrel 31 with piston structure and secondary hydraulic cylinder housing 32.As described above, when
When main hydraulic cylinder 10 rotates clockwise, hydraulic oil enters secondary hydraulic cylinder 3 by the first hydraulic oil pipe 6, and hydraulic from second
Oil pipe 7 flows out hydraulic cylinder, therefore the mandrel 31 of secondary hydraulic cylinder 3 moves downward under the promotion of piston structure.At this point, right side resets
Spring 37 compresses, and left side reset spring 37 is upheld, and under the collective effect of two reset springs, one is generated on mandrel 31
Restoring force.Restoring force is converted into hydraulic and oily along the first hydraulic oil pipe 6 and the second hydraulic oil pipe 7, first by piston structure
Oilhole on road 4 and the second oil circuit 5, main hydraulic cylinder shell enters in main hydraulic cylinder 10, in the rotary inner core of main hydraulic cylinder 10
Upper hydrodynamic force, and an opposing torque is generated to stabilizer bar, that is, it plays transverse arresting apparatus and resists left and right sides not
The effect moved synchronously.
Hydraulic oil flow through the first hydraulic oil pipe 6 and the second hydraulic oil pipe 7 reaches secondary hydraulic cylinder 3, push secondary hydraulic
Piston in cylinder 3 or so linear motion.The left and right linear motion of secondary hydraulic cylinder piston will drive the reset spring 37 of two sides（Left and right
2）Compression is upheld, and restoring force can be by formula：It indicates.Its neutralization is left and right side reset spring rigidity.With spring
The amount of compression increases, and pitch is smaller（Spring rate is smaller）The spring of part can enter contact condition, to make this part
Spring follow the string, cause spring as a whole rigidity increase.Conversely, entering contact condition originally with the extension of spring
Spring can disengage contact, to make Monolithic spring Stiffness.Further, if left and right sides spring tray is located remotely from each other, make
Spring does not enter precommpression, and possesses certain free travel（When secondary hydraulic cylinder mandrel moves left and right, spring as a whole is mobile,
But it does not compress）, then the effective rigidity of spring is zero at this time, and the rigidity of whole system also falls to zero.
Spring tray 36（Left and right totally 2）Spring compression force transmitting is transmitted on mandrel 31 by secondary hydraulic cylinder housing 32.
Spring tray 36 and mandrel 31 are using threaded connection.Spring tray 36 passes through spline and spring overcoat cylinder 38（Left and right 2）It is connected
It connects；Spring overcoat cylinder 38 connects firmly on secondary hydraulic cylinder housing 32, is not able to rotate, therefore spring tray 36 can only be axial along mandrel 31
Movement, and cannot relatively secondary hydraulic cylinder housing 32 rotate；When mandrel 31 is rotated by motor shaft 34 by motor 33 by spline
When, mandrel 31 is just relatively rotated with spring tray 36, then the two is under screw-driven, it may occur that axial along mandrel
Movement.The pre compressed magnitude of spring tray position change at this time, reset spring changes, and achievees the purpose that change reset spring.Mandrel
It is reversed with the screw thread left and right sides of spring tray, therefore when mandrel rotation, left and right sides spring tray can move in reverse direction, i.e., together
When synchronous holddown spring or synchronous pull-off spring.
Electric motor protecting shell 35 and shell 39 mainly play fixed and sealing process.
The torque of the twist motion of sway bar and receiving is output on secondary hydraulic cylinder by the present invention by hydraulic mode,
Secondary hydraulic cylinder is set finally to move the recipient with load；It so avoids arranging excessive part on stabiliser bar, to avoid quality
With the increase of rotary inertia, avoid deteriorating vehicle suspension characteristic.By above scheme, so that elastomeric element and stiffness tuning machine
Structure may exit off stabilizer bar arrangement, and be connected between the two by hydraulic oil hose, and arrangement is not limited by position.Of the invention
Secondary hydraulic cylinder is using a pair of of reset spring；Spring is designed using variation rigidity（Pitch variation）, after precommpression, the small part of rigidity
It can be compacted to follow the string（Refer to spring, non-elastic properties of materials）, so that spring as a whole rigidity be made to rise.Present invention design
One set electric adjusting mechanism, so that the symmetrical preload amount for adjusting 2 side reset springs can be synchronized using a decelerating motor,
Namely adjust its rigidity.
Those of ordinary skill in the art will appreciate that：The foregoing is only a preferred embodiment of the present invention, and does not have to
In the limitation present invention, although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art
For, still can to foregoing embodiments record technical solution modify, or to part of technical characteristic into
Row equivalent replacement.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should all include
Within protection scope of the present invention.
Claims (9)
1. a kind of hydraulic active variation rigidity lateral stability lever system, including, stabilizer bar, oil circuit component, is hanged secondary hydraulic cylinder
Frame connecting rod, fixing seat and main hydraulic cylinder, which is characterized in that
The stabilizer bar is installed on the car body by the fixing seat；
The stabilizer bar, one end are connected with main hydraulic cylinder, and the other end is connected with one end of the suspension link；Institute
The other end for stating suspension link is connected with suspension；
The main hydraulic cylinder is connected by the oil circuit component with the secondary hydraulic cylinder.
2. hydraulic active variation rigidity lateral stability lever system according to claim 1, which is characterized in that the master is hydraulic
Cylinder, including, rotary inner core and main hydraulic cylinder shell, the rotary inner core are provided with a pair of symmetrical protrusion, with the master
The main hydraulic cylinder inner cavity is divided into four cavitys together by the tab on hydraulic cylinder housing.
3. hydraulic active variation rigidity lateral stability lever system according to claim 1, which is characterized in that the transverse direction is steady
Fixed pole, including left stabilizer bar and right stabilizer bar；The suspension link, including left suspension link and right suspension link；
The right stabilizer bar, one end are connected with main hydraulic cylinder, and the other end is connected with one end of the right suspension link
It connects；
The left stabilizer bar, one end are connected with main hydraulic cylinder, and the other end is connected with one end of the left suspension link
It connects.
4. hydraulic active variation rigidity lateral stability lever system according to claim 3, which is characterized in that described left and right
Stabilizer bar is fixedly connected with the main hydraulic cylinder shell or rotary inner core respectively.
5. a kind of hydraulic active variation rigidity lateral stability lever system according to claim 1, which is characterized in that the pair
Hydraulic cylinder, including, mandrel, secondary hydraulic cylinder housing, motor, motor shaft, electric motor protecting shell, spring tray, reset spring, spring
Outer sleeve and shell, wherein
It is connected through a screw thread between the spring tray and the mandrel, and is connected by spline with the spring overcoat cylinder；
The spring overcoat cylinder is fixedly connected on the hydraulic cylinder housing of pair, so that axis of the spring tray along the mandrel
To movement.
6. hydraulic active variation rigidity lateral stability lever system according to claim 5, which is characterized in that outside the spring
Sleeve inner is formed with spline, and the spring tray is externally formed with spline；The inside of the spring overcoat cylinder with it is described
The outside of spring tray is connected by spline to be cooperated.
7. hydraulic active variation rigidity lateral stability lever system according to claim 5, which is characterized in that the mandrel
It is provided with splined hole inside left side, is connect with the motor shaft by spline.
8. hydraulic active variation rigidity lateral stability lever system according to claim 5, which is characterized in that the reset bullet
Spring is arranged between the hydraulic cylinder housing of the pair and spring tray, and the mandrel passes through.
9. hydraulic active variation rigidity lateral stability lever system according to claim 5, which is characterized in that the latch bracket
Disk, including left spring pallet, right spring tray, when the mandrel is rotated by the motor driven, the left and right spring tray
It moves in reverse direction, realizes while synchronizing holddown spring or synchronous pull-off spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820324008.7U CN208134006U (en) | 2018-03-09 | 2018-03-09 | Hydraulic active variation rigidity lateral stability lever system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820324008.7U CN208134006U (en) | 2018-03-09 | 2018-03-09 | Hydraulic active variation rigidity lateral stability lever system |
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| CN208134006U true CN208134006U (en) | 2018-11-23 |
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| CN201820324008.7U Active CN208134006U (en) | 2018-03-09 | 2018-03-09 | Hydraulic active variation rigidity lateral stability lever system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110605947A (en) * | 2019-09-23 | 2019-12-24 | 安徽工程大学 | All-terrain independent suspension mobile robot for farms based on ROS scheduling system |
| CN111422021A (en) * | 2020-04-13 | 2020-07-17 | 合肥工业大学 | Automobile suspension system with anti-roll and off-road performances |
| CN114248592A (en) * | 2020-09-21 | 2022-03-29 | 上海汽车集团股份有限公司 | Stabilizer bar assembly, stabilizer bar system and vehicle |
| CN114348115A (en) * | 2022-02-17 | 2022-04-15 | 一汽解放汽车有限公司 | Variable-rigidity cross beam and frame assembly |
-
2018
- 2018-03-09 CN CN201820324008.7U patent/CN208134006U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110605947A (en) * | 2019-09-23 | 2019-12-24 | 安徽工程大学 | All-terrain independent suspension mobile robot for farms based on ROS scheduling system |
| CN110605947B (en) * | 2019-09-23 | 2024-03-12 | 安徽工程大学 | All-terrain independent suspension mobile robot for farm based on ROS scheduling system |
| CN111422021A (en) * | 2020-04-13 | 2020-07-17 | 合肥工业大学 | Automobile suspension system with anti-roll and off-road performances |
| CN114248592A (en) * | 2020-09-21 | 2022-03-29 | 上海汽车集团股份有限公司 | Stabilizer bar assembly, stabilizer bar system and vehicle |
| CN114348115A (en) * | 2022-02-17 | 2022-04-15 | 一汽解放汽车有限公司 | Variable-rigidity cross beam and frame assembly |
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