Suspension system and vehicle

Abstract

The utility model discloses a suspension system and a vehicle, the suspension system comprises: a plurality of shock absorbers suitable for being respectively connected with a plurality of wheels of the vehicle; and the number of the hydraulic pumps is multiple, and each hydraulic pump selectively communicates with at least one of the multiple shock absorbers. Therefore, a plurality of hydraulic pumps are arranged, and each hydraulic pump is selectively communicated with at least one of the plurality of shock absorbers, so that when one hydraulic pump communicated with one shock absorber in one shock absorber breaks down, the other hydraulic pumps communicated with the hydraulic pump can continuously supply oil to the shock absorber to play a role; in this way, the lifting failure rate of the suspension system can be reduced, and the stability and reliability of the suspension system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a suspension system and a vehicle. Background Art

[0002] With the advancement of technology, vehicles are becoming increasingly widely used. To meet specific needs, such as increasing off-road capabilities or accommodating larger tire sizes, the vehicle's suspension system needs to raise the vehicle's chassis height above the ground. In other words, the suspension system needs to have a lifting function.

[0003] In the related art, the design of the suspension system is not reasonable enough. When the hydraulic pump of the suspension system fails, it cannot supply oil to the shock absorber, the lifting function will fail, and there is no backup oil supply device. This will lead to a high failure rate of the suspension system and reduce the reliability of the vehicle. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems in the prior art. To this end, one purpose of the present invention is to provide a suspension system that can reduce the lifting failure rate and has higher stability and reliability.

[0005] According to an embodiment of the present invention, the suspension system includes: a shock absorber, wherein there are multiple shock absorbers, and the multiple shock absorbers are suitable for being respectively connected to multiple wheels of the vehicle; and a hydraulic pump, wherein there are multiple hydraulic pumps, and each of the hydraulic pumps is selectively connected to at least one of the multiple shock absorbers.

[0006] Therefore, by setting up multiple hydraulic pumps, each hydraulic pump is selectively connected to at least one of the multiple shock absorbers. In this way, when a hydraulic pump connected to a certain shock absorber fails, another hydraulic pump connected to it can continue to supply oil to this shock absorber and play its role. This can reduce the lifting failure rate of the suspension system and improve the stability and reliability of the suspension system.

[0007] In some examples of the present invention, there are four shock absorbers, and the four shock absorbers are suitable for being connected to the left and right front wheels and the left and right rear wheels of the vehicle, respectively. There are four hydraulic pumps, and the four hydraulic pumps are continuously connected to the four shock absorbers in a one-to-one correspondence. The shock absorber that is continuously connected to any one of the four hydraulic pumps is set as a normally-connected shock absorber, and the other three shock absorbers are set as selected shock absorbers. Any one of the four hydraulic pumps is selectively connected to at least one of the three selected shock absorbers.

[0008] In some examples of the present invention, the suspension system also includes: a front solenoid valve and a rear solenoid valve, the four shock absorbers include two front shock absorbers and two rear shock absorbers, the two front shock absorbers are respectively suitable for being connected to the left and right front wheels of the vehicle, and the two rear shock absorbers are respectively suitable for being connected to the left and right rear wheels of the vehicle, the four hydraulic pumps include two front hydraulic pumps and two rear hydraulic pumps, the two front hydraulic pumps are connected to the two front shock absorbers one-to-one, and the two rear hydraulic pumps are connected to the two rear shock absorbers one-to-one, the front solenoid valve is arranged between the two front hydraulic pumps, and the front solenoid valve is selectively opened and closed, the rear solenoid valve is arranged between the two rear hydraulic pumps, and the rear solenoid valve is selectively opened and closed.

[0009] In some examples of the present invention, a front normally-flow path is connected between each of the front hydraulic pumps and each of the front shock absorbers, a front selection branch is connected between the two front normally-flow paths, and the front solenoid valve is arranged on the front selection branch; a rear normally-flow path is connected between each of the rear hydraulic pumps and each of the rear shock absorbers, a rear selection branch is connected between the two rear normally-flow paths, and the rear solenoid valve is arranged on the rear selection branch.

[0010] In some examples of the present invention, front and rear gating branches are connected between the front gating branch and the rear gating branch.

[0011] In some examples of the present invention, there are two front solenoid valves, which are spaced apart on the front gating branch; there are two rear solenoid valves, which are spaced apart on the rear gating branch.

[0012] In some examples of the present invention, the front end of the front and rear gating branches is connected to the part between the two front solenoid valves corresponding to the front gating branches, and the rear end of the front and rear gating branches is connected to the part between the two rear solenoid valves corresponding to the rear gating branches.

[0013] In some examples of the present invention, front and rear solenoid valves are provided on the front and rear gating branches.

[0014] In some examples of the present invention, the two front solenoid valves, the two rear solenoid valves, and the front and rear solenoid valves are integrated.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 Schematic diagram of a suspension system according to an embodiment of the present invention.

[0018] Reference numerals:

[0019] 100. Suspension system; 200. Wheels;

[0020] 10. Shock absorber; 11. Front shock absorber; 12. Rear shock absorber;

[0021] 20. Hydraulic pump; 21. Front hydraulic pump; 22. Rear hydraulic pump;

[0022] 30. Distribution valve; 31. Front solenoid valve; 32. Rear solenoid valve; 33. Front and rear solenoid valves;

[0023] 40. Front normal flow path; 41. Rear normal flow path; 42. Front selection branch; 43. Rear selection branch; 44. Front and rear selection branches. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0025] Reference below Figure 1 A suspension system 100 according to an embodiment of the present invention is described. The suspension system 100 may be applied to a vehicle.

[0026] Combine Figure 1 As shown, the suspension system 100 according to the present invention may mainly include: a shock absorber 10 and a hydraulic pump 20. There are multiple shock absorbers 10, each of which is suitable for being connected to multiple wheels 200 of a vehicle. There are multiple hydraulic pumps 20, each of which is selectively connected to at least one of the multiple shock absorbers 10.

[0027] Specifically, by setting up the shock absorber 10 and connecting the shock absorber 10 to the wheel 200 of the vehicle, when the vehicle is traveling on an uneven road and the wheel 200 encounters bumps on the road, the shock absorber 10 can absorb these vibrations and reduce the vibration and impact transmitted to the vehicle cabin, thereby making the vehicle travel more stable and improving the riding comfort of passengers.

[0028] Furthermore, to improve off-road performance and other operational performance, the vehicle's chassis height needs to be adjusted while driving. This means the suspension system 100 needs to have a lifting function. Since the shock absorber 10 is connected to the vehicle's chassis, a hydraulic pump 20 is provided and connected to the shock absorber 10. This allows the hydraulic pump 20 to supply oil to the shock absorber 10, adjusting its travel and thus achieving the lifting function of the suspension system 100.

[0029] By providing a plurality of shock absorbers 10 , the plurality of shock absorbers 10 are respectively connected to the plurality of wheels 200 of the vehicle, and each shock absorber 10 can absorb the vibration at the corresponding wheel 200 , thereby further improving the driving stability of the vehicle.

[0030] Moreover, unlike setting up one hydraulic pump, the present application sets up multiple hydraulic pumps 20 so that each hydraulic pump 20 is selectively connected to at least one of the multiple shock absorbers 10, that is, each shock absorber 10 can be connected to at least one of the multiple hydraulic pumps 20. In this way, while ensuring that each shock absorber 10 has a hydraulic pump 20 to supply oil for it and ensuring that the suspension system 100 has a lifting function, when a hydraulic pump 20 connected to a certain shock absorber 10 fails, another hydraulic pump 20 connected to it can also perform the oil supply function, thereby avoiding the situation where the shock absorber 10 cannot be supplied with oil, reducing the failure rate of the lifting function of the suspension system 100, and improving the stability and reliability of the suspension system 100.

[0031] Therefore, by providing a plurality of hydraulic pumps 20, each hydraulic pump 20 is selectively connected to at least one of the plurality of shock absorbers 10. In this way, when a hydraulic pump 20 connected to a certain shock absorber 10 fails, another hydraulic pump 20 connected thereto can also perform the oil supply function, thereby reducing the lifting failure rate of the suspension system 100 and improving the stability and reliability of the suspension system 100.

[0032] Combine Figure 1 As shown, there are four shock absorbers 10, which are suitable for being connected to the left and right front wheels and the left and right rear wheels of the vehicle, respectively. There are four hydraulic pumps 20, which are continuously connected to the four shock absorbers 10 in a one-to-one correspondence. The shock absorber 10 that is continuously connected to any one of the four hydraulic pumps 20 is set as a normally open shock absorber, and the other three shock absorbers 10 are set as selectable shock absorbers, and any one of the four hydraulic pumps 20 is selectively connected to at least one of the three selectable shock absorbers.

[0033] Specifically, the vehicle has four wheels 200, including left and right front wheels and left and right rear wheels. By providing four shock absorbers 10, the four shock absorbers 10 can be adapted to be connected to the left and right front wheels and the left and right rear wheels of the vehicle, respectively, thereby improving the vehicle's vibration damping performance. Furthermore, four hydraulic pumps 20 can also be provided, so that the four hydraulic pumps 20 are continuously connected to the four shock absorbers 10 in a one-to-one correspondence. Thus, each hydraulic pump 20 can be connected to a corresponding shock absorber 10, enabling independent oil supply to each shock absorber 10.

[0034] On the one hand, during lifting, the suspension system 100 is not restricted by the lever ratio and internal pressure of each shock absorber 10, so that the four hydraulic pumps 20 can work simultaneously. Each hydraulic pump 20 pumps oil into the shock absorber 10 that is continuously interconnected with it. On the premise of realizing the lifting function of the suspension system 100, the lifting speed is further increased and the working performance of the suspension system 100 is improved.

[0035] On the other hand, independent control of each wheel 200 can be achieved. When the vehicle body is unstable, such as when the vehicle is camping outdoors and the vehicle tilts due to uneven ground, the posture of each wheel 200 can be controlled separately to make the vehicle reach a level state.

[0036] Furthermore, the shock absorber 10 that is continuously interconnected with any one of the four hydraulic pumps 20 is set as a normally-on shock absorber, and the other three shock absorbers 10 are set as gated shock absorbers. Any one of the four hydraulic pumps 20 is selectively connected to at least one of the three gated shock absorbers, that is, each hydraulic pump 20 is not only continuously interconnected with a corresponding normally-on shock absorber, but is also selectively connected to at least one of the other three shock absorbers 10. In this way, each hydraulic pump 20 can not only supply oil to the corresponding normally-on shock absorber, but also selectively supply oil to at least one of the other three shock absorbers 10.

[0037] In this way, when the hydraulic pump 20 corresponding to a certain shock absorber 10 and continuously connected thereto fails, the shock absorber 10 and the corresponding hydraulic pump 20 selectively connected thereto can also be connected, so that the hydraulic pump 20 corresponding to the shock absorber 10 and selectively connected thereto can supply oil to the shock absorber 10, thereby avoiding the situation where the shock absorber 10 cannot be supplied with oil, ensuring the normal implementation of the lifting function of the suspension system 100, thereby reducing the failure rate of the lifting function of the suspension system 100 and improving the stability and reliability of the suspension system 100.

[0038] Combine Figure 1As shown, the suspension system 100 may further include a front solenoid valve 31 and a rear solenoid valve 32, the four shock absorbers 10 may include two front shock absorbers 11 and two rear shock absorbers 12, the two front shock absorbers 11 are respectively suitable for being connected to the left and right front wheels of the vehicle, and the two rear shock absorbers 12 are respectively suitable for being connected to the left and right rear wheels of the vehicle, the four hydraulic pumps 20 may include two front hydraulic pumps 21 and two rear hydraulic pumps 22, the two front hydraulic pumps 21 are connected to the two front shock absorbers 11 in a one-to-one correspondence, and the two rear hydraulic pumps 22 are connected to the two rear shock absorbers 12 in a one-to-one correspondence, the front solenoid valve 31 is arranged between the two front hydraulic pumps 21, and the front solenoid valve 31 is selectively opened and closed, the rear solenoid valve 32 is arranged between the two rear hydraulic pumps 22, and the rear solenoid valve 32 is selectively opened and closed.

[0039] Specifically, the two front hydraulic pumps 21 are continuously connected to the two front shock absorbers 11 in a one-to-one correspondence. By setting the front solenoid valve 31 between the two front hydraulic pumps 21, it is only necessary to control the front solenoid valve 31 to be selectively opened and closed, so that each front shock absorber 11 can not only be continuously connected to the corresponding front hydraulic pump 21, but also be selectively connected to the other front hydraulic pump 21. In this way, even if one of the two front hydraulic pumps 21 fails, the other front hydraulic pump 21 can also supply oil to the two front shock absorbers 11, that is, the two front shock absorbers 11 can serve as backup for each other and supply oil to the two front shock absorbers 11, thereby reducing the failure rate of the lifting function of the suspension system 100 and improving the stability and reliability of the suspension system 100.

[0040] Furthermore, the two rear hydraulic pumps 22 are continuously connected to the two rear shock absorbers 12 in a one-to-one correspondence. By arranging the rear solenoid valve 32 between the two rear hydraulic pumps 22, it is only necessary to control the rear solenoid valve 32 to be selectively opened and closed, so that each rear shock absorber 12 can be continuously connected to the corresponding rear hydraulic pump 22 and selectively connected to the other rear hydraulic pump 22. In this way, even if one of the two rear hydraulic pumps 22 fails, the other rear hydraulic pump 22 can also supply oil to the two rear shock absorbers 12, that is, the two rear shock absorbers 12 can serve as backup for each other and supply oil to the two rear shock absorbers 12, thereby reducing the failure rate of the lifting function of the suspension system 100 and improving the stability and reliability of the suspension system 100.

[0041] Combine Figure 1 As shown, a front normal flow path 40 is connected between each front hydraulic pump 21 and each front shock absorber 11 , a front gating branch 42 is connected between the two front normal flow paths 40 , and the front solenoid valve 31 is arranged on the front gating branch 42 .

[0042] Specifically, by connecting a front normally-pass flow path 40 between each front hydraulic pump 21 and each front shock absorber 11, that is, connecting a front normally-pass flow path 40 between one front hydraulic pump 21 and one front shock absorber 11, and connecting another front normally-pass flow path 40 between another front hydraulic pump 21 and another front shock absorber 11, the two front hydraulic pumps 21 and the two front shock absorbers 11 can be continuously connected to each other in a one-to-one correspondence.

[0043] Furthermore, by connecting the two front normally-open flow paths 40 with a front selection branch 42 and arranging the front solenoid valve 31 on the front selection branch 42, selective communication between the two front normally-open flow paths 40 can be achieved by opening and closing the front solenoid valve 31, so that each front shock absorber 11 can not only be continuously connected to the corresponding front hydraulic pump 21, but also be selectively connected to the other front hydraulic pump 21, thereby achieving mutual backup of the two front shock absorbers 11 and making the suspension system 100 simpler and more controllable.

[0044] Combine Figure 1 As shown, a rear normal flow path 41 is connected between each rear hydraulic pump 22 and each rear shock absorber 12 , a rear selection branch 43 is connected between the two rear normal flow paths 41 , and the rear solenoid valve 32 is arranged on the rear selection branch 43 .

[0045] Specifically, a rear normally-pass flow path 41 is connected between each rear hydraulic pump 22 and each rear shock absorber 12, that is, a rear normally-pass flow path 41 is connected between one rear hydraulic pump 22 and one rear shock absorber 12, and another rear normally-pass flow path 41 is connected between another rear hydraulic pump 22 and another rear shock absorber 12. In this way, the two rear hydraulic pumps 22 and the two rear shock absorbers 12 can be continuously connected to each other in a one-to-one correspondence.

[0046] Furthermore, by connecting the two rear normally-open flow paths 41 with a rear selection branch 43 and arranging the rear solenoid valve 32 on the rear selection branch 43, selective communication between the two rear normally-open flow paths 41 can be achieved by opening and closing the rear solenoid valve 32, so that each rear shock absorber 12 is not only continuously connected to the corresponding rear hydraulic pump 22, but also selectively connected to the other rear hydraulic pump 22, thereby achieving mutual backup of the two rear shock absorbers 12 and making the suspension system 100 simpler and more controllable.

[0047] Combine Figure 1As shown, a front and rear gating branch 44 is connected between the front gating branch 42 and the rear gating branch 43, so that the front gating branch 42 and the rear gating branch 43 can be connected through the front and rear gating branches 44, and the oil of the front hydraulic pump 21 can selectively flow to at least one rear shock absorber 12 through the front normal flow path 40, the front gating branch 42, the front and rear gating branches 44, and the rear gating branch 43, and the oil of the rear hydraulic pump 22 can also selectively flow to at least one front shock absorber 11 through the rear normal flow path 41, the rear gating branch 43, the front and rear gating branches 44, and the front gating branch 42.

[0048] In this way, under the premise that the two front shock absorbers 11 serve as backup for each other and the two rear shock absorbers 12 serve as backup for each other, the front hydraulic pump 21 can also supply oil to the rear shock absorber 12, and the rear hydraulic pump 22 can supply oil to the front shock absorber 11, that is, the four hydraulic pumps 20 can serve as backup for each other. In this way, even if three of the four hydraulic pumps 20 fail, the other hydraulic pump 20 can also supply oil to the four shock absorbers 10, thereby further reducing the failure rate of the lifting function of the suspension system 100 and further improving the stability and reliability of the suspension system 100.

[0049] Further, combined with Figure 1 As shown, the front and rear solenoid valves 33 are provided on the front and rear gating branches 44. Specifically, by providing the front and rear solenoid valves 33 on the front and rear gating branches 44, the opening and closing of the front and rear solenoid valves 33 can be controlled to control the opening and closing of the front and rear gating branches 44, thereby achieving selective communication between the front gating branch 42 and the rear gating branch 43. This makes the selective communication between the front gating branch 42 and the rear gating branch 43 simpler and more controllable, thereby improving the reliability of the suspension system 100 and making the suspension system 100 more intelligent and controllable.

[0050] Combine Figure 1 As shown, there are two front solenoid valves 31, which are spaced apart on the front gating branch 42. There are two rear solenoid valves 32, which are spaced apart on the rear gating branch 43. The front end of the front-rear gating branch 44 is connected to the portion of the front gating branch 42 corresponding to the two front solenoid valves 31, and the rear end of the front-rear gating branch 44 is connected to the portion of the rear gating branch 43 corresponding to the two rear solenoid valves 32.

[0051] Specifically, by connecting the front end of the front and rear selection branches 44 with the part between the two front solenoid valves 31 corresponding to the front selection branch 42, one front solenoid valve 31 can be connected between a front normal-flow path 40 and the front end of the front and rear selection branch 44, and another front solenoid valve 31 can be connected between another front normal-flow path 40 and the front and rear selection branches 44, and the two front solenoid valves 31 work independently, so that by controlling the selective opening and closing of the two front solenoid valves 31, the two front normal-flow paths 40 can be selectively connected to the front and rear selection branches 44, respectively, so that the rear hydraulic pump 22 can realize independent oil supply to each front shock absorber 11, thereby ensuring separate control of each front shock absorber 11.

[0052] Furthermore, by connecting the rear ends of the front and rear selection branches 44 with the parts between the two rear solenoid valves 32 corresponding to the rear selection branch 43, one rear solenoid valve 32 can be connected between a rear normal-flow path 41 and the rear ends of the front and rear selection branches 44, and another rear solenoid valve 32 can be connected between another rear normal-flow path 41 and the front and rear selection branches 44, and the two rear solenoid valves 32 work independently, so that by controlling the selective opening and closing of the two front solenoid valves 31, the two rear normal-flow paths 41 can be selectively connected to the front and rear selection branches 44, respectively, so that the rear hydraulic pump 22 can realize independent oil supply to each rear shock absorber 12, thereby ensuring separate control of each rear shock absorber 12.

[0053] The above configuration of four shock absorbers 10, four hydraulic pumps 20, two front solenoid valves 31, two rear solenoid valves 32, and one front and rear solenoid valve 33 forms the basic structure of a suspension system 100. In this suspension system 100, each hydraulic pump 20 drives each shock absorber 10. The four hydraulic pumps 20 are interconnected with the four shock absorbers 10, serving as backup for each other.

[0054] When lifting, the two front solenoid valves 31, the two rear solenoid valves 32, and the one front and rear solenoid valves 33 can all be disconnected, allowing the four hydraulic pumps 20 to operate simultaneously. This allows each of the four hydraulic pumps 20 to supply oil to the shock absorber 10 and lift the vehicle, achieving simultaneous lifting of all four wheels and accelerating the lifting speed. Of course, it is also possible to disconnect the two front solenoid valves 31, the two rear solenoid valves 32, and the one front and rear solenoid valves 33, and control the operation of a single hydraulic pump 20 to achieve independent control of the posture of the wheel 200 corresponding to the hydraulic pump 20.

[0055] When one or more hydraulic pumps 20 fail, the remaining hydraulic pumps 20 can supply oil to other shock absorbers 10 to ensure normal function.

[0056] For example, when a front hydraulic pump 21 fails, the two front solenoid valves 31 can be controlled to open, the two rear solenoid valves 32 and one front and rear solenoid valve 33 can be controlled to be disconnected, and the other front hydraulic pump 21 can be controlled to work. The front hydraulic pump 21 can supply oil to the two front shock absorbers 11 at the same time, and the two rear hydraulic pumps 22 can be controlled to supply oil to the two rear shock absorbers 12 respectively, thereby realizing the lifting function of the suspension system 100.

[0057] For another example, when both front hydraulic pumps 21 and one rear hydraulic pump 22 fail, first, the two rear solenoid valves 32 are controlled to open, the two front solenoid valves 31 and one front and rear solenoid valve 33 are controlled to be disconnected, and the other rear hydraulic pump 22 is controlled to operate to supply oil to the two rear shock absorbers 12. Then, after the oil supply to the two rear shock absorbers 12 is completed, the rear solenoid valve 32 located between the failed rear hydraulic pump 22 and the front and rear selection branch 44 is controlled to close, and the two front solenoid valves 31, one front and rear solenoid valve 33, and the other rear solenoid valve 32 are controlled to open, so that the rear hydraulic pump 22 can supply oil to the two front shock absorbers 11. Then, after the oil supply to the two front shock absorbers 11 is completed, since the right rear shock absorber 12 has been supplied with oil twice, the right rear shock absorber 12 needs to be height-adjusted and leveled. The two front solenoid valves 31, the two rear solenoid valves 32 and the one front and rear solenoid valves 33 can be controlled to be disconnected, and the rear hydraulic pump 22 that is not faulty can be controlled to work, and the oil of the rear shock absorber 12 that is normally connected to it can be discharged into the liquid storage pot until the height is leveled.

[0058] In some embodiments of the present invention, Figure 1 As shown, the two front solenoid valves 31, the two rear solenoid valves 32, and the front and rear solenoid valves 33 are integrated. Specifically, the two front solenoid valves 31, the two rear solenoid valves 32, and the front and rear solenoid valves 33 are all connected between the two front normally-flow paths 40 and the two rear normally-flow paths 41. By integrating the two front solenoid valves 31, the two rear solenoid valves 32, and the front and rear solenoid valves 33 into a distribution valve 30, the number of components of the suspension system 100 can be reduced while ensuring the normal operation of the suspension system 100, facilitating assembly of the suspension system 100 and thus simplifying the suspension system 100.

[0059] The vehicle according to the present invention may primarily include the aforementioned suspension system 100. Specifically, by applying the suspension system 100 to a vehicle, not only can the vehicle's lifting speed be increased, but the vehicle's lifting failure rate can also be reduced, thereby improving the vehicle's operating performance and reliability, thereby enhancing the vehicle's product competitiveness and improving the user experience.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0061] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0062] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A suspension system, characterized in that: include: Shock absorbers (10), there are four shock absorbers (10), and the four shock absorbers (10) are suitable for being connected to the left and right front wheels and the left and right rear wheels of the vehicle respectively; A hydraulic pump (20), wherein there are four hydraulic pumps (20), and the four hydraulic pumps (20) are continuously connected to the four shock absorbers (10) in a one-to-one correspondence, and the shock absorber (10) that is continuously connected to any one of the four hydraulic pumps (20) is set as a normally open shock absorber (10), and the other three shock absorbers (10) are set as selectable shock absorbers (10), and any one of the four hydraulic pumps (20) is selectively connected to at least one of the three selectable shock absorbers (10).

2. The suspension system according to claim 1, wherein: Also includes: A front solenoid valve (31) and a rear solenoid valve (32), the four shock absorbers (10) include two front shock absorbers (11) and two rear shock absorbers (12), the two front shock absorbers (11) are respectively suitable for being connected to the left and right front wheels of the vehicle, and the two rear shock absorbers (12) are respectively suitable for being connected to the left and right rear wheels of the vehicle, the four hydraulic pumps (20) include two front hydraulic pumps (21) and two rear hydraulic pumps (22), the two front hydraulic pumps (21) are connected to the two front shock absorbers (11) in a one-to-one correspondence, and the two rear hydraulic pumps (22) are connected to the two rear shock absorbers (12) in a one-to-one correspondence, the front solenoid valve (31) is arranged between the two front hydraulic pumps (21), and the front solenoid valve (31) is selectively opened and closed, the rear solenoid valve (32) is arranged between the two rear hydraulic pumps (22), and the rear solenoid valve (32) is selectively opened and closed.

3. The suspension system according to claim 2, characterized in that A front constant flow path (40) is connected between each front hydraulic pump (21) and each front shock absorber (11), a front selection branch (42) is connected between the two front constant flow paths (40), and the front solenoid valve (31) is arranged on the front selection branch (42); A rear constant flow path (41) is connected between each rear hydraulic pump (22) and each rear shock absorber (12), a rear selection branch (43) is connected between the two rear constant flow paths (41), and the rear solenoid valve (32) is arranged on the rear selection branch (43).

4. The suspension system according to claim 3, characterized in that Front and rear gating branches (44) are connected between the front gating branch (42) and the rear gating branch (43).

5. The suspension system according to claim 4, characterized in that There are two front solenoid valves (31), and the two front solenoid valves (31) are arranged at intervals on the front selection branch (42); there are two rear solenoid valves (32), and the two rear solenoid valves (32) are arranged at intervals on the rear selection branch (43).

6. The suspension system according to claim 5, characterized in that The front end of the front and rear selection branch (44) is connected to the portion between the two front solenoid valves (31) corresponding to the front selection branch (42), and the rear end of the front and rear selection branch (44) is connected to the portion between the two rear solenoid valves (32) corresponding to the rear selection branch (43).

7. The suspension system according to claim 4, wherein: Front and rear solenoid valves (33) are provided on the front and rear selection branches (44).

8. The suspension system according to claim 7, wherein: The two front solenoid valves (31), the two rear solenoid valves (32), and the front and rear solenoid valves (33) are integrated.

9. A vehicle, characterized in that: A suspension system (100) comprising any one of claims 1-8.

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