CN111391601A - Hydraulic interconnection suspension system for multi-axle vehicle - Google Patents
Hydraulic interconnection suspension system for multi-axle vehicle Download PDFInfo
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- CN111391601A CN111391601A CN202010339325.8A CN202010339325A CN111391601A CN 111391601 A CN111391601 A CN 111391601A CN 202010339325 A CN202010339325 A CN 202010339325A CN 111391601 A CN111391601 A CN 111391601A
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- hydraulic
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- suspension system
- hydraulic actuator
- axle
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- 239000000725 suspension Substances 0.000 title claims abstract description 33
- 238000013016 damping Methods 0.000 claims description 30
- 238000010586 diagram Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
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Classifications
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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
- B60G21/067—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 different axles on the same side of the vehicle, i.e. the left or the right side
-
- 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 invention discloses a hydraulic interconnection suspension system for a multi-axle vehicle, which comprises hydraulic actuators arranged at two ends of each axle of the vehicle, wherein the hydraulic actuators are arranged between a wheel assembly and a vehicle body; the hydraulic actuator units are arranged side by side to form a group, corresponding hydraulic pipelines of the group of hydraulic actuator units are connected through connecting oil paths, and the connecting oil paths and/or the hydraulic pipelines in the hydraulic actuator units are connected with energy accumulators; the roll performance of a multi-axle vehicle can be effectively improved.
Description
Technical Field
The invention relates to the technical field of vehicle suspensions, in particular to a hydraulic interconnection suspension system for a multi-axle vehicle.
Background
In actual engineering application at present, the large-scale cargo carrying vehicle of multiaxis vehicle is big, the barycenter is high, and suspension system needs to provide great roll angle rigidity, and the roll angle rigidity that traditional suspension can provide is limited. And the traditional multi-axle vehicle suspension can not improve the vehicle control performance and realize the coordination control of the smoothness and the control stability on the premise that the riding comfort is not influenced negatively.
Disclosure of Invention
In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a hydraulic interconnected suspension system for a multi-axle vehicle, which can effectively improve the roll performance of the multi-axle vehicle.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the hydraulic interconnection suspension system for the multi-axle vehicle comprises hydraulic actuators arranged at two ends of each axle of the vehicle, wherein the hydraulic actuators are arranged between a wheel assembly and a vehicle body; the hydraulic actuator units are arranged side by side to form a group, corresponding hydraulic pipelines of the hydraulic actuator units are connected through connecting oil paths, and the connecting oil paths and/or the hydraulic pipelines in the hydraulic actuator units are connected with energy accumulators.
Furthermore, the connecting oil paths between the group of hydraulic actuator units arranged side by side are connected through an interconnection switch.
And a damping valve is correspondingly arranged in front of an oil port of the energy accumulator.
The hydraulic actuator is a hydraulic cylinder, one end of the hydraulic cylinder is a rodless cavity, and the other end of the hydraulic cylinder is a rod cavity.
And a damping valve is arranged in each hydraulic actuator unit corresponding to the hydraulic pipeline.
And the hydraulic pipeline in each corresponding hydraulic actuator unit is connected with an energy accumulator.
The damping valve is an adjustable damping valve.
And the damping valve in the hydraulic pipeline is arranged corresponding to the oil port of each hydraulic actuator.
Compared with the prior art, the invention has the following advantages:
the hydraulic interconnection suspension system for the multi-axle vehicle is reasonable in structural design, has good anti-roll performance, can improve the vehicle control performance on the premise that the riding comfort is not affected negatively, achieves coordinated control over the smoothness and the control stability, and is stable, reliable and relatively low in cost.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
fig. 1 is a schematic diagram of a first structure of a triaxial vehicle hydraulic suspension system of the present invention.
Fig. 2 is a schematic diagram of a multi-axle vehicle hydraulic suspension system of the present invention.
Fig. 3 is a schematic diagram of a second structure of the triaxial vehicle hydraulic suspension system of the present invention.
Fig. 4 is a schematic diagram of a third structure of the triaxial vehicle hydraulic suspension system of the present invention.
Fig. 5 is a schematic diagram of a fourth structure of the hydraulic suspension system of the triaxial vehicle of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, the hydraulic interconnection suspension system for a multi-axle vehicle includes hydraulic actuators disposed corresponding to both ends of each axle of the vehicle, the hydraulic actuators being disposed between a wheel assembly and a vehicle body, a pair of hydraulic actuators disposed corresponding to both ends of each axle of the vehicle being connected, an upper chamber of a corresponding one side hydraulic actuator being connected to a lower chamber of a corresponding other side hydraulic actuator through a hydraulic pipeline, a lower chamber of a corresponding one side hydraulic actuator being connected to an upper chamber of a corresponding other side hydraulic actuator through another hydraulic pipeline, a pair of hydraulic actuators disposed corresponding to each axle and the hydraulic pipeline connected therebetween forming a hydraulic actuator unit; the hydraulic actuator units are arranged side by side to form a group, corresponding hydraulic pipelines of the group of hydraulic actuator units are connected through connecting oil paths, and the connecting oil paths and/or the hydraulic pipelines in the hydraulic actuator units are connected with energy accumulators.
The hydraulic actuator is a hydraulic cylinder, one end of the hydraulic cylinder is a rodless cavity, and the other end of the hydraulic cylinder is a rod cavity. Specifically, two hydraulic cylinders are oppositely arranged on the left and right sides in each hydraulic actuator unit and are connected, the upper cavity of one hydraulic cylinder is connected with the lower cavity of the corresponding hydraulic cylinder on the other side through a hydraulic pipeline, and the lower cavity of the corresponding hydraulic cylinder on one side is connected with the upper cavity of the corresponding hydraulic cylinder on the other side through another hydraulic pipeline.
The hydraulic cylinders in each hydraulic actuator unit are consistent in connection mode, are arranged side by side, and are stable, reliable and relatively low in cost.
The hydraulic pipeline corresponding to each hydraulic actuator unit is connected with an energy accumulator; and a damping valve is correspondingly arranged in front of an oil port of the energy accumulator.
A damping valve is arranged in each hydraulic actuator unit corresponding to the hydraulic pipeline; preferably, the damping valve in the hydraulic pipeline is arranged corresponding to the oil port of each hydraulic actuator.
The damping valve is an adjustable damping valve and is used for providing real-time adjustable system damping force, expanding the damping adjusting range and accuracy and being capable of being installed as required.
The connecting oil paths between a group of hydraulic actuator units arranged side by side are connected through the interconnection switches, the number of the hydraulic actuator units and the connecting mode of the system can be flexibly changed according to the number of the vehicle axles, the application range is wide, and the cost is reduced.
The hydraulic interconnection suspension system has reasonable structural design, better anti-roll performance, stable and reliable stability and lower cost, can improve the vehicle control performance on the premise that the riding comfort is not influenced negatively, and realizes the coordinated control of the smoothness and the control stability.
Preferred specific examples are:
example 1:
fig. 1 is a schematic view of a hydraulic suspension system for a three-axle vehicle capable of improving the roll performance of the vehicle, in which two hydraulic cylinders (1a,1b,1c,1d,1e,1f) are provided for each axle, and apply force to the vehicle body and wheels as an actuating device of the hydraulic suspension.
The two ends of each corresponding shaft are oppositely arranged on the left and the right of the hydraulic cylinder and are connected through two hydraulic pipelines (2,3,7,8,11 and 12), and each hydraulic pipeline comprises two main pipelines: the rod cavity of the left side actuator and the rod-free cavity of the right side actuator are connected in one way, and the rod-free cavity of the left side actuator and the rod cavity of the right side actuator are connected in the other way.
The corresponding hydraulic pipelines of the three hydraulic actuator units are connected through connecting oil passages (9,10), and each closed loop is provided with an energy accumulator (6a, 6b) connected in the hydraulic pipelines.
When the vehicle turns left at a certain speed, the vehicle body is subjected to a certain lateral acceleration, so that the posture of the vehicle body changes and the vehicle body rolls right, in the left and right side actuators (1a and 1b,1c and 1d,1e and 1f) of the same axle, the upper cavities of the right side actuators (1a, 1c and 1e) are compressed, the volume is reduced, oil flows out of the actuators, the upper cavities of the left side actuators (1b, 1d and 1f) are stretched, the volume is increased, the oil flows into the actuators, one of the loops flows into the energy accumulator 6a to continue to compress gas, the oil pressure of the loop is increased, the other loop flows out of the energy accumulator 6b, so that the gas compression amount is reduced, the oil pressure of the loop is reduced, so that the upper chamber and the lower chamber of the actuator generate pressure difference, the left actuator and the right actuator generate roll moment for restraining the vehicle body from continuously rolling, the posture of the vehicle body is changed, and the roll performance of the vehicle is improved.
Example 2:
fig. 2 is a schematic diagram of a hydraulic interconnection suspension system for a multi-axle vehicle capable of improving vehicle rolling performance, wherein the number of actuators depends on the number of axles of the vehicle, and generally, one actuator is respectively arranged at the left and right of the same axle and is an actuating device of the hydraulic suspension and is respectively fixedly connected with a vehicle body and a wheel to apply force to the vehicle body and the wheel.
Connect the hydraulic pressure pipeline of actuator, hydraulic pressure pipeline includes two at least main branches: the rod cavity of the left side actuator and the rod-free cavity of the right side actuator are connected in one way, and the rod-free cavity of the left side actuator and the rod cavity of the right side actuator are connected in the other way.
The connecting oil paths among a group of hydraulic actuator units arranged side by side are connected through interconnection switches, and the number and the connecting mode of the hydraulic actuator units of the system can be flexibly changed according to the number of the vehicle axles; according to the type of the vehicle, the interconnection switch I13 and the interconnection switch II 14 can be disconnected or connected, if the vehicle is divided into a plurality of compartments, the interconnection switch I13 and the interconnection switch II 14 are disconnected, when the interconnection switch I13 and the interconnection switch II 14 are disconnected, the hydraulic pipeline is provided with a plurality of main roads, and when the interconnection switch I13 and the interconnection switch II 14 are connected, the hydraulic pipeline is provided with two main roads.
The connecting oil paths (9,10) positioned at the front part are connected with the connecting pipelines (21,22) positioned at the rear part through interconnection switches, the hydraulic actuator units positioned at the rear part are consistent with the hydraulic actuator units in the figure 1 in connection mode, each hydraulic actuator unit comprises two hydraulic cylinders (na, nb, nc, nd), the corresponding hydraulic cylinders are connected through hydraulic pipelines (15,16,19,20), the corresponding hydraulic pipelines of each unit are connected through the connecting oil paths (21,22), and the connecting oil paths are connected with energy accumulators (6c, 6 d).
Example 3:
referring to fig. 3, another hydraulic suspension system for a three-axle vehicle that improves roll performance and ride comfort of the vehicle is shown, wherein a damping valve (23a, 23b, 24a, 24b, 25a, 25b, 26a, 26b, 27a, 27b, 28a, 28b) is provided in each hydraulic cylinder port, such that when oil flows through the damping valve, the system generates a damping force value that improves ride comfort of the vehicle.
Example 4:
as shown in fig. 4, which is a schematic view of another hydraulic suspension system for a three-axle vehicle, which can improve the roll performance and the smoothness of the vehicle, a damping valve is arranged at the outlet of each cylinder, a damping valve (29a, 29b) is also arranged in front of each energy accumulator, the connecting oil path is connected with the energy accumulator through a branch (4,5), and the corresponding energy accumulator damping valve is arranged on the branch; when the vehicle is excited by the uneven road surface in the vertical direction, the oil volume of some chambers of the oil cylinder is reduced, the oil volume of some chambers is increased, the damping valve at the outlet of the oil cylinder correspondingly generates damping force according to matching, the flow passing through the front damping valve of the energy accumulator is very small, the front damping valve of the energy accumulator hardly generates damping force, and the smoothness of the vehicle is improved. When the vehicle turns and the vehicle body tilts, more oil enters and exits the energy accumulator at the moment, and when the oil flows through the damping valve in front of the energy accumulator, the tilting damping corresponding to the tilting stiffness can be correspondingly generated according to matching, so that the tilting performance of the vehicle is improved.
Example 5:
referring to fig. 5, another hydraulic suspension system for a three-axle vehicle that improves roll performance and ride comfort is shown, wherein an accumulator (6a, 6b, 6c, 6d, 6e, 6f) is provided at the outlet of the upper chamber of each cylinder, and a plurality of accumulators are provided in each closed circuit. When the vehicle is excited by a concave-convex road surface, oil liquid discharged from the upper cavity of the oil cylinder can enter the energy accumulator to relieve impact.
The control method can improve the vehicle control performance and realize the coordination control of the smoothness and the control stability on the premise that the riding comfort is not influenced negatively.
The above-mentioned features are merely for describing preferred embodiments of the present invention and may be arbitrarily combined to form a plurality of embodiments of the present invention.
The invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (8)
1. The utility model provides a hydraulic pressure interconnection suspension system for multiaxis vehicle, includes the hydraulic actuator who corresponds the setting of each axle both ends of vehicle, and hydraulic actuator establishes between wheel assembly and automobile body its characterized in that: the hydraulic actuator unit comprises a pair of hydraulic actuators, a pair of hydraulic pipelines and a hydraulic pipeline, wherein the pair of hydraulic actuators are arranged at two ends of each shaft of the corresponding vehicle and are connected with each other; the hydraulic actuator units are arranged side by side to form a group, corresponding hydraulic pipelines of the hydraulic actuator units are connected through connecting oil paths, and the connecting oil paths and/or the hydraulic pipelines in the hydraulic actuator units are connected with energy accumulators.
2. A hydraulic interconnected suspension system for a multi-axle vehicle as claimed in claim 1 wherein: and the connecting oil paths between the group of hydraulic actuator units arranged side by side are connected through the interconnection switch.
3. A hydraulic interconnected suspension system for a multi-axle vehicle as claimed in claim 1 wherein: and a damping valve is correspondingly arranged in front of an oil port of the energy accumulator.
4. A hydraulic interconnected suspension system for a multi-axle vehicle as claimed in claim 1 wherein: the hydraulic actuator is a hydraulic cylinder, one end of the hydraulic cylinder is a rodless cavity, and the other end of the hydraulic cylinder is a rod cavity.
5. A hydraulic interconnected suspension system for a multi-axle vehicle as claimed in claim 1 or 3 wherein: and a damping valve is arranged in each hydraulic actuator unit corresponding to the hydraulic pipeline.
6. A hydraulic interconnected suspension system for a multi-axle vehicle as claimed in claim 1 or 4 wherein: and the hydraulic pipeline in each corresponding hydraulic actuator unit is connected with an energy accumulator.
7. A hydraulic interconnected suspension system for a multi-axle vehicle as claimed in claim 5 wherein: the damping valve is an adjustable damping valve.
8. A hydraulic interconnected suspension system for a multi-axle vehicle as claimed in claim 5 wherein: and the damping valve in the hydraulic pipeline is arranged corresponding to the oil port of each hydraulic actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010339325.8A CN111391601A (en) | 2020-04-26 | 2020-04-26 | Hydraulic interconnection suspension system for multi-axle vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010339325.8A CN111391601A (en) | 2020-04-26 | 2020-04-26 | Hydraulic interconnection suspension system for multi-axle vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN111391601A true CN111391601A (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010339325.8A Pending CN111391601A (en) | 2020-04-26 | 2020-04-26 | Hydraulic interconnection suspension system for multi-axle vehicle |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH079831A (en) * | 1993-06-29 | 1995-01-13 | Kobe Steel Ltd | Hydro-pneumatic suspension |
| CN102059929A (en) * | 2010-12-20 | 2011-05-18 | 三一汽车起重机械有限公司 | Hydro-pneumatic suspension system and wheeled vehicle with same |
| WO2013104199A1 (en) * | 2012-01-09 | 2013-07-18 | 中联重科股份有限公司 | Combination of suspension systems, multiple-axle vehicle and multiple-axle chassis |
| CN203449878U (en) * | 2013-08-08 | 2014-02-26 | 常州万安汽车部件科技有限公司 | Hydraulic interconnected torsion-eliminating suspension system for four-wheel vehicle |
| CN204037280U (en) * | 2014-08-06 | 2014-12-24 | 常州万安汽车部件科技有限公司 | Vehicle suspension system and self-propelled vehicle |
| CN106476561A (en) * | 2015-08-27 | 2017-03-08 | 上海汽车集团股份有限公司 | A kind of automobile anti-side-sway eliminator, suspension system and automobile |
| CN212124778U (en) * | 2020-04-26 | 2020-12-11 | 常州万安汽车部件科技有限公司 | Hydraulic interconnected suspension system for multi-axle vehicle |
-
2020
- 2020-04-26 CN CN202010339325.8A patent/CN111391601A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH079831A (en) * | 1993-06-29 | 1995-01-13 | Kobe Steel Ltd | Hydro-pneumatic suspension |
| CN102059929A (en) * | 2010-12-20 | 2011-05-18 | 三一汽车起重机械有限公司 | Hydro-pneumatic suspension system and wheeled vehicle with same |
| WO2013104199A1 (en) * | 2012-01-09 | 2013-07-18 | 中联重科股份有限公司 | Combination of suspension systems, multiple-axle vehicle and multiple-axle chassis |
| CN203449878U (en) * | 2013-08-08 | 2014-02-26 | 常州万安汽车部件科技有限公司 | Hydraulic interconnected torsion-eliminating suspension system for four-wheel vehicle |
| CN204037280U (en) * | 2014-08-06 | 2014-12-24 | 常州万安汽车部件科技有限公司 | Vehicle suspension system and self-propelled vehicle |
| CN106476561A (en) * | 2015-08-27 | 2017-03-08 | 上海汽车集团股份有限公司 | A kind of automobile anti-side-sway eliminator, suspension system and automobile |
| CN212124778U (en) * | 2020-04-26 | 2020-12-11 | 常州万安汽车部件科技有限公司 | Hydraulic interconnected suspension system for multi-axle vehicle |
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