Suspension system and vehicle

Abstract

The utility model discloses a suspension system and a vehicle. The suspension system comprises a hydraulic pump; the hydraulic pump is communicated with the shock absorber, the shock absorber is suitable for being connected with wheels of a vehicle, a one-way valve is connected between the shock absorber and the hydraulic pump, and the one-way valve allows oil in the shock absorber to flow back into the hydraulic pump; the electromagnetic switch valve is arranged between the hydraulic pump and the shock absorber and connected with the one-way valve in parallel, and the electromagnetic switch valve is selectively opened and closed so as to allow oil in the hydraulic pump to flow into the shock absorber. Therefore, the electromagnetic switch valve is arranged between the hydraulic pump and the shock absorber and is connected with the one-way valve in parallel, so that the electromagnetic switch valve is selectively opened and closed, oil in the hydraulic pump is allowed to flow into the shock absorber, and the electromagnetic switch valve is simple in structure, capable of reducing cost, high in anti-pollution capacity, not prone to clamping stagnation and blockage and better in reliability. Therefore, the fault maintenance frequency of the suspension system can be reduced, and the stability and reliability of the suspension system can be improved.

Description

Technical Field

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

[0002] With the development of technology and the improvement of users' living standards, vehicles have become an essential means of transportation for people. The hydraulic pump in the vehicle suspension system can distribute the oil in the liquid storage pot to the shock absorber through the suspension attitude control valve, so that the piston rod of the shock absorber performs a stretching movement, thereby realizing vehicle lifting.

[0003] In the related art, most of the switch control valves of the hydraulic pump are mechanical valves. However, the mechanical switch control valve not only has many components and a cumbersome assembly process, but also has high machining accuracy requirements, which will increase the manufacturing cost of the mechanical switch control valve. In addition, there will be more oil impurities inside the suspension system using the mechanical switch control valve. In the long run, internal jamming and blockage will occur, resulting in a decrease in the system's pressure holding capacity, loss of the vehicle's attitude, and reduction of the lifting efficiency, which will affect the normal working performance of the suspension system and reduce the reliability of the suspension system. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a suspension system, the structure of which is simple and the anti-pollution ability is strong, and the reliability of the suspension system can be effectively improved.

[0005] The utility model further provides a vehicle.

[0006] According to the suspension system of the utility model, it includes: a hydraulic pump; a shock absorber, the hydraulic pump is connected to the shock absorber, the shock absorber is adapted to be connected to the vehicle wheel, a check valve is connected between the shock absorber and the hydraulic pump, and the check valve allows the oil in the shock absorber to flow back to the hydraulic pump; an electromagnetic switch valve, the electromagnetic switch valve is arranged between the hydraulic pump and the shock absorber and is arranged in parallel with the check valve, and the electromagnetic switch valve selectively opens and closes to allow the oil in the hydraulic pump to flow to the shock absorber.

[0007] Thus, by arranging the electromagnetic switch valve between the hydraulic pump and the shock absorber and arranging it in parallel with the check valve, and making the electromagnetic switch valve selectively open and close to allow the oil in the hydraulic pump to flow to the shock absorber, the electromagnetic switch valve not only has a simple structure, can reduce costs, but also has strong anti-pollution ability, is not prone to jamming and blockage, and has better reliability. In this way, the fault repair frequency of the suspension system can be reduced, and the stability and reliability of the suspension system can be improved.

[0008] In some examples of the present utility model, an oil passage is provided inside the electromagnetic switching valve. One end of the oil passage is communicated with the hydraulic pump, and the other end is communicated with the shock absorber. The electromagnetic switching valve includes an electromagnetic coil and a valve core. The electromagnetic coil is circumferentially arranged around the outside of the valve core and is spaced from the valve core. The electromagnetic coil selectively drives the valve core to move so as to selectively open and close the oil passage.

[0009] In some examples of the present utility model, the oil passage includes a first oil passage and a second oil passage. The first end of the first oil passage is communicated with the hydraulic pump, the second end of the first oil passage is communicated with the first end of the second oil passage, and the second end of the second oil passage is communicated with the shock absorber. The valve core selectively opens and closes the first end of the second oil passage.

[0010] In some examples of the present utility model, the valve core includes a head and a rod portion. The rod portion is oppositely arranged in a first direction with the first end of the second oil passage. The rod portion extends in the first direction. The head is circular and is arranged at the end of the rod portion adjacent to the second oil passage in the first direction. The head selectively opens and closes the first end of the second oil passage.

[0011] In some examples of the present utility model, a conduit is provided inside the electromagnetic switching valve. The second oil passage is arranged inside the conduit. A guiding and mating inclined surface is provided at a portion of the conduit corresponding to the first end of the second oil passage. The guiding and mating inclined surface is in guiding and mating with the head.

[0012] In some examples of the present utility model, there are multiple shock absorbers, and the multiple shock absorbers are adapted to be respectively connected to multiple wheels of the vehicle. There are multiple hydraulic pumps, and each hydraulic pump is selectively communicated with at least one of the multiple shock absorbers.

[0013] In some examples of the present utility model, there are four shock absorbers, and the four shock absorbers are adapted to be respectively connected to the left and right front wheels and the left and right rear wheels of the vehicle. There are four hydraulic pumps, and the four hydraulic pumps are continuously and mutually communicated with the four shock absorbers in a one-to-one correspondence. The shock absorber that is continuously and mutually communicated with any one of the four hydraulic pumps is set as a normally open shock absorber, and the other three shock absorbers are set as selectively open shock absorbers. Any one of the four hydraulic pumps is selectively communicated with at least one of the three selectively open shock absorbers.

[0014] In some examples of the present utility model, a first solenoid valve and a second solenoid valve are further included. The shock absorber includes two front shock absorbers and two rear shock absorbers. The two front shock absorbers are respectively adapted to be connected to the left and right front wheels of the vehicle, and the two rear shock absorbers are respectively adapted to be connected to the left and right rear wheels of the vehicle. The first solenoid valve is arranged between the hydraulic pump and each of the shock absorbers. There are two second solenoid valves, one of the two second solenoid valves is arranged between the two front shock absorbers, and the other of the two second solenoid valves is arranged between the two rear shock absorbers.

[0015] In some examples of the present utility model, a third solenoid valve is further included. The four first solenoid valves and the two second solenoid valves are integrally arranged to form an attitude regulating valve, and a third solenoid valve is communicated between the attitude regulating valve and the hydraulic pump.

[0016] The vehicle according to the embodiment of the present utility model includes: the suspension system described above.

[0017] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0019] Figure 1 is a schematic diagram of the first embodiment of the suspension system according to the embodiment of the present utility model;

[0020] Figure 2 is a schematic diagram of the second embodiment of the suspension system according to the embodiment of the present utility model;

[0021] Figure 3 is a schematic diagram of the third embodiment of the suspension system according to the embodiment of the present utility model;

[0022] Figure 4 is a schematic diagram of the closed state of the electromagnetic switch valve according to the embodiment of the present utility model;

[0023] Figure 5 is a schematic diagram of the open state of the electromagnetic switch valve according to the embodiment of the present utility model.

[0024] REFERENCE SIGNS:

[0025] 100, suspension system;

[0026] 10, hydraulic pump;

[0027] 20, shock absorber; 201, front shock absorber; 202, rear shock absorber;

[0028] 30. Electromagnetic solenoid valve; 301. Oil passage; 302. Electromagnetic coil; 303. Spool valve; 304. Conduit;

[0029] 3011. First oil passage; 3012. Second oil passage; 3031. Head; 3032. Stem;

[0030] 40. Check valve;

[0031] 50. Attitude regulating valve; 501. First solenoid valve; 502. Second solenoid valve; 503. Third solenoid valve. Detailed implementation mode

[0032] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the drawings are exemplary. The embodiments of the present invention will be described in detail below.

[0033] Below, refer to Figures 1 - 5 Describe the suspension system 100 according to an embodiment of the present invention. The suspension system 100 can be applied to a vehicle.

[0034] In combination with Figures 1 - 5 As shown, the suspension system 100 according to the present invention mainly includes: a hydraulic pump 10, a shock absorber 20, and an electromagnetic solenoid valve 30. Among them, the hydraulic pump 10 can suck the oil in the fuel tank and deliver it to other components, which can ensure a stable oil supply in the vehicle suspension system 100 and guarantee the normal working performance of the vehicle.

[0035] Furthermore, the hydraulic pump 10 is connected to the shock absorber 20. The shock absorber 20 is adapted to be connected to the vehicle wheel. By controlling the expansion and contraction of the shock absorber 20, the attitude of the vehicle can be adjusted, and the shock absorber 20 can also absorb part of the road surface excitation or collision energy to ensure the smoothness of the vehicle driving.

[0036] Furthermore, a check valve 40 is connected between the shock absorber 20 and the hydraulic pump 10. The check valve 40 allows the oil in the shock absorber 20 to flow back to the hydraulic pump 10, which can ensure the normal function of the suspension system 100 to lower the vehicle.

[0037] Furthermore, the electromagnetic solenoid valve 30 is arranged between the hydraulic pump 10 and the shock absorber 20 and is arranged in parallel with the check valve 40. The electromagnetic solenoid valve 30 selectively opens and closes to allow the oil in the hydraulic pump 10 to flow to the shock absorber 20, which can ensure the normal function of the suspension system 100 to lift the vehicle.

[0038] Further, when the vehicle needs to be lifted, the electromagnetic switch valve 30 is opened, and the motor in the hydraulic pump 10 drives the gear pump to make the oil in the oil storage tank enter the shock absorber 20 through the electromagnetic switch valve 30, causing the piston rod in the shock absorber 20 to perform a stretching movement, thereby lifting the vehicle to the required height. When the vehicle needs to be lowered, the electromagnetic switch valve 30 arranged in parallel with the one-way valve 40 in the hydraulic pump 10 is closed, and the self-weight of the whole vehicle causes the oil to flow back to the oil storage tank through the one-way valve 40. At the same time, the piston rod of the shock absorber 20 retracts, and the vehicle gradually returns to the ground.

[0039] With such a setting, by arranging the electromagnetic switch valve 30 between the hydraulic pump 10 and the shock absorber 20 and in parallel with the one-way valve 40, the electromagnetic switch valve 30 is selectively opened and closed to allow the oil in the hydraulic pump 10 to flow into the shock absorber 20. The electromagnetic switch valve 30 not only has a simple structure, can reduce costs, but also has strong anti-pollution ability, is not prone to jamming and blockage, and has better reliability. This can reduce the failure maintenance frequency of the suspension system 100 and improve the stability and reliability of the suspension system 100.

[0040] In some embodiments of the present invention, the structural layout of the suspension system 100 can be ensured to remain unchanged, and the electromagnetic switch valve 30 arranged in parallel with the one-way valve 40 can be replaced with a mechanical switch valve alone, which can also optimize the structural design and working performance of the suspension system 100.

[0041] Combined Figure 1 、 Figure 4 and Figure 5 As shown, an oil passage 301 is provided in the electromagnetic switch valve 30. One end of the oil passage 301 is communicated with the hydraulic pump 10, and the other end is communicated with the shock absorber 20. The electromagnetic switch valve 30 includes an electromagnetic coil 302 and a valve core 303. The electromagnetic coil 302 is circumferentially arranged around the outside of the valve core 303 and is spaced from the valve core 303. The electromagnetic coil 302 selectively drives the valve core 303 to move to selectively open and close the oil passage 301.

[0042] Specifically, an oil passage 301 is provided in the electromagnetic switch valve 30, and one end of the oil passage 301 is communicated with the hydraulic pump 10, and the other end is communicated with the shock absorber 20. This can not only ensure the reliability of oil delivery, but also ensure that the oil can be delivered from the hydraulic pump 10 to the shock absorber 20, and can ensure the rationality and reliability of the structural setting of the suspension system 100.

[0043] Furthermore, the electromagnetic switching valve 30 includes an electromagnetic coil 302 and a valve core 303. The electromagnetic coil 302 is circumferentially arranged around the outside of the valve core 303 and is spaced apart from the valve core 303. The electromagnetic coil 302 selectively drives the valve core 303 to move so as to selectively open and close the oil passage 301. Specifically, after the electromagnetic coil 302 is energized, a magnetic field is generated, and then an electromagnetic force will be generated. By making the valve core 303 move under the action of the electromagnetic force, the opening and closing of the electromagnetic switching valve 30 can be controlled, so that the on-off of the oil passage 301 can be controlled. In this way, the rationality and reliability of the structural arrangement of the electromagnetic switching valve 30 can be ensured, the on-off control of the oil passage 301 by the electromagnetic switching valve 30 can be realized, the normal working performance of the suspension system 100 can be ensured, and the reliability of the structure of the suspension system 100 can be further improved.

[0044] Combined with Figure 1 、 Figure 4 and Figure 5 As shown, the oil passage 301 includes a first oil passage 3011 and a second oil passage 3012. The first end of the first oil passage 3011 is communicated with the hydraulic pump 10, the second end of the first oil passage 3011 is communicated with the first end of the second oil passage 3012, and the second end of the second oil passage 3012 is communicated with the shock absorber 20. The valve core 303 selectively opens and closes the first end of the second oil passage 3012. Specifically, the oil passage 301 includes a first oil passage 3011 and a second oil passage 3012. The oil delivery between the hydraulic pump 10 and the shock absorber 20 is realized jointly through the first oil passage 3011 and the second oil passage 3012. Among them, the first end of the first oil passage 3011 is communicated with the hydraulic pump 10, the second end of the first oil passage 3011 is communicated with the first end of the second oil passage 3012, the second end of the second oil passage 3012 is communicated with the shock absorber 20, and an electromagnetic switching valve is arranged at the first end of the second oil passage 3012, so that its valve core 303 selectively opens and closes the first end of the second oil passage 3012. In this way, not only can a barrier between the shock absorber 20 and the hydraulic pump 10 be added, the structural design of the suspension system 100 can be further optimized, but also the oil delivery condition at the shock absorber 20 can be accurately controlled, the working performance of the suspension system 100 can be optimized, and the stability and reliability of the suspension system 100 can be improved.

[0045] In some embodiments of the present utility model, an electromagnetic switch valve connected in series with a one-way valve 40 may be added between the hydraulic pump 10 and the shock absorber 20. Specifically, the electromagnetic switch valve is arranged adjacent to the second end of the first hydraulic fluid passage 3011, and together with the electromagnetic switch valves at the first ends of each second hydraulic fluid passage 3012, an attitude regulating valve 50 is formed. Further, multiple sealing barriers can be formed, and the control of the hydraulic fluid passage 301 of the suspension system 100 can be optimized, the adjustment effect of the suspension system on the vehicle attitude can be improved, the structural design of the suspension system 100 can be further optimized, and the adjustment effect of the suspension system 100 on the vehicle attitude can be optimized.

[0046] Combined with Figure 1 , Figure 4 and Figure 5 As shown, the valve core 303 includes a head 3031 and a rod portion 3032. The rod portion 3032 is disposed opposite to the first end of the second hydraulic fluid passage 3012 in the first direction. The rod portion 3032 extends in the first direction. The head 3031 is circular and is disposed at the end of the rod portion 3032 adjacent to the second hydraulic fluid passage 3012 in the first direction. The head 3031 selectively opens and closes the first end of the second hydraulic fluid passage 3012.

[0047] Specifically, the valve core 303 includes a head 3031 and a rod portion 3032. By arranging the rod portion 3032 of the valve core 303 opposite to the first end of the second hydraulic fluid passage 3012 in the first direction and extending the rod portion 3032 in the first direction, and in addition, the head 3031 of the valve core 303 is circular and is disposed at the end of the rod portion 3032 adjacent to the second hydraulic fluid passage 3012 in the first direction, the rationality and reliability of the structure of the electromagnetic switch valve 30 can be ensured. Thus, not only can the wear on the head 3031 caused by the hydraulic fluid be reduced, but also the influence of the setting of the head 3031 on the flow of the hydraulic fluid can be prevented, and the sealing performance and anti-pollution ability of the electromagnetic switch valve 30 can be improved.

[0048] Further, the head 3031 of the valve core 303 selectively opens and closes the first end of the second hydraulic fluid passage 3012. In this way, the opening and closing of the second hydraulic fluid passage 3012 can be controlled through the electromagnetic switch valve 30, the conveying direction and conveying amount of the hydraulic fluid can be conveniently regulated, the working performance of the suspension system 100 can be improved, and the reliability of the suspension system 100 can be improved.

[0049] Combined with Figure 1 , Figure 4 and Figure 5As shown, a conduit 304 is provided inside the electromagnetic switching valve 30, and a second hydraulic fluid passage 3012 is arranged inside the conduit 304. A guiding and mating inclined surface is provided at a portion of the conduit 304 corresponding to the first end of the second hydraulic fluid passage 3012, and the guiding and mating inclined surface mates with the head 3031. Specifically, by providing the conduit 304 inside the electromagnetic switching valve 30, arranging the second hydraulic fluid passage 3012 inside the conduit 304, and providing a guiding and mating inclined surface at a portion of the conduit 304 corresponding to the first end of the second hydraulic fluid passage 3012, with the guiding and mating inclined surface mating with the head 3031, not only can the sealing performance and reliability of the second hydraulic fluid passage 3012 be improved, leakage of the hydraulic fluid at the second hydraulic fluid passage 3012 can be prevented, but also the flow of the hydraulic fluid can be guided, the reliability of the on-off control between the first hydraulic fluid passage 3011 and the second hydraulic fluid passage 3012 can be improved, and the reliability of the suspension system 100 can be improved.

[0050] Combined with Figure 2 、 Figure 4 and Figure 5 As shown, there are multiple shock absorbers 20, and the multiple shock absorbers 20 are adapted to be respectively connected to multiple wheels of the vehicle. There are multiple hydraulic pumps 10, and each hydraulic pump 10 is selectively connected and communicated with at least one of the multiple shock absorbers 20.

[0051] Specifically, by providing multiple shock absorbers 20, with the multiple shock absorbers 20 respectively connected to multiple wheels of the vehicle, each shock absorber 20 can absorb the vibration energy at the corresponding wheel, and the driving smoothness of the vehicle can be further improved.

[0052] Furthermore, different from providing only one hydraulic pump 10, in this application, by providing multiple hydraulic pumps 10, each hydraulic pump 10 is selectively connected and communicated with at least one of the multiple shock absorbers 20, that is: each shock absorber 20 can be connected and communicated with at least one of the multiple hydraulic pumps 10. In this way, on the premise of ensuring that each shock absorber 20 has a hydraulic pump 10 to supply oil to it and ensuring that the suspension system 100 has a lifting function, when a certain hydraulic pump 10 connected to a certain shock absorber 20 fails, another connected hydraulic pump 10 can also perform the oil supply function, thereby avoiding the situation where oil cannot be supplied to this shock absorber 20, reducing the failure rate of the lifting function of the suspension system 100, and improving the stability and reliability of the suspension system 100.

[0053] With such an arrangement, one or more wheels of the vehicle can be selectively coordinated with the lifting of the vehicle, the lifting function of the vehicle can be optimized, the failure of the lifting function caused by the failure of one or more hydraulic pumps 10 can be avoided, and the smoothness and reliability of the vehicle during driving can be improved.

[0054] Combined with Figure 2 、Figure 4 and Figure 5 As shown in Figure 5 , there are four shock absorbers 20, and the four shock absorbers 20 are adapted to be respectively connected to the left and right front wheels and the left and right rear wheels of the vehicle. There are four hydraulic pumps 10, and the four hydraulic pumps 10 are continuously interconnected with the four shock absorbers 20 in one-to-one correspondence. The shock absorber 20 that is continuously interconnected with any one of the four hydraulic pumps 10 is set as a normally connected shock absorber 20, and the other three shock absorbers 20 are set as selectively connected shock absorbers 20. Any one of the four hydraulic pumps 10 is selectively connected to at least one of the three selectively connected shock absorbers 20.

[0055] Specifically, the vehicle has a total of four wheels, namely the left and right front wheels and the left and right rear wheels. By setting the shock absorbers 20 to four, the four shock absorbers 20 can be adapted to be respectively connected to the left and right front wheels and the left and right rear wheels of the vehicle, and the shock absorption performance of the vehicle can be improved. And the hydraulic pumps 10 are also set to four, so that the four hydraulic pumps 10 are continuously interconnected with the four shock absorbers 20 in one-to-one correspondence. In this way, one hydraulic pump 10 can be correspondingly connected to one shock absorber 20, and independent oil supply to each shock absorber 20 can be achieved.

[0056] On the one hand, during lifting, the suspension system 100 can be made not restricted by the lever ratio and internal pressure of each shock absorber 20, and the four hydraulic pumps 10 can work simultaneously. Each hydraulic pump 10 pumps oil into the shock absorber 20 that is continuously interconnected with it. On the premise of realizing the lifting function of the suspension system 100, the lifting speed can be further increased, and the working performance of the suspension system 100 can be improved.

[0057] On the other hand, independent control of each wheel can be achieved. When the vehicle body is not stable, for example, when the vehicle is camping outdoors and the vehicle tilts due to uneven ground, attitude control can be performed on a certain wheel alone to make the vehicle reach a horizontal state.

[0058] Furthermore, the shock absorber 20 that is continuously interconnected with any one of the four hydraulic pumps 10 is set as a normally connected shock absorber 20, and the other three shock absorbers 20 are set as selectively connected shock absorbers 20. Any one of the four hydraulic pumps 10 is selectively connected to at least one of the three selectively connected shock absorbers 20, that is: each hydraulic pump 10 is not only continuously interconnected with a corresponding normally connected shock absorber 20, but also selectively connected to at least one of the other three shock absorbers 20. In this way, each hydraulic pump 10 can not only supply oil to the corresponding normally connected shock absorber 20, but also selectively supply oil to at least one of the other three shock absorbers 20.

[0059] Thus, when a hydraulic pump 10 that is continuously interconnected with a corresponding shock absorber 20 fails, the shock absorber 20 can also be connected to the corresponding hydraulic pump 10 that is selectively interconnected therewith, so that the hydraulic pump 10 that is selectively interconnected with the shock absorber 20 supplies oil to the shock absorber 20, avoiding the situation where the shock absorber 20 cannot be supplied with oil, ensuring the normal realization 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.

[0060] Combined Figure 3 、 Figure 4 and Figure 5 As shown, the suspension system 100 further includes a first solenoid valve 501 and a second solenoid valve 502. The shock absorber 20 includes two front shock absorbers 201 and two rear shock absorbers 202. The two front shock absorbers 201 are respectively adapted to be connected to the left and right front wheels of the vehicle, and the two rear shock absorbers 202 are respectively adapted to be connected to the left and right rear wheels of the vehicle. A first solenoid valve 501 is provided between the hydraulic pump 10 and each shock absorber 20. There are two second solenoid valves 502. One of the two second solenoid valves 502 is provided between the two front shock absorbers 201, and the other of the two second solenoid valves 502 is provided between the two rear shock absorbers 202.

[0061] Specifically, the shock absorber 20 includes two front shock absorbers 201 and two rear shock absorbers 202. The two front shock absorbers 201 are adapted to be connected to the left and right front wheels of the vehicle, and the two rear shock absorbers 202 are adapted to be connected to the left and right rear wheels of the vehicle. In this way, the suspension system 100 can damp the left and right front wheels and the left and right rear wheels of the vehicle respectively, thereby reducing the body vibration caused by road excitation and being beneficial to improving the riding comfort.

[0062] Further, a first solenoid valve 501 is provided between the hydraulic pump 10 and each shock absorber 20 to respectively control the flow of the oil in the hydraulic pump 10 to each shock absorber 20, and the stiffness of each shock absorber 20 can be independently adjusted, and then the damping ability of each shock absorber 20 can be adjusted.

[0063] Further, a second solenoid valve 502 is provided between the two front shock absorbers 201. The second solenoid valve 502 in this embodiment includes but is not limited to a pressure leveling solenoid valve. When the vehicle is driving, if one of the two front shock absorbers 201 is suddenly subjected to a large impact, the second solenoid valve 502 opens, so that the oil in the impacted front shock absorber 201 flows to the other front shock absorber 201, thereby reducing the stiffness of the impacted front shock absorber 201 to absorb more vibration, and increasing the stiffness of the other front shock absorber 201, which can improve the smoothness of the vehicle body and the controllability of the vehicle.

[0064] Furthermore, a second solenoid valve 502 is disposed between the two rear shock absorbers 202. The second solenoid valve 502 in this embodiment includes, but is not limited to, a pressure leveling electromagnetic switch valve. When the vehicle is in motion, if one of the two rear shock absorbers 202 is suddenly subjected to a large impact, the second solenoid valve 502 opens, causing the hydraulic fluid in the impacted rear shock absorber 202 to flow to the other rear shock absorber 202. As a result, the stiffness of the impacted rear shock absorber 202 can be reduced to absorb more vibrations, while the stiffness of the other rear shock absorber 202 increases, thereby improving the ride smoothness of the vehicle and its handling performance.

[0065] Thus, by disposing the second solenoid valve 502 between the two front shock absorbers 201 and between the two rear shock absorbers 202, the pressure between the two front shock absorbers 201 or between the two rear shock absorbers 202 can be balanced by adjusting the pressure of the shock absorbers 20, ensuring the ride smoothness and comfort of the vehicle during driving.

[0066] In some embodiments of the present invention, the drive motor of the hydraulic pump 10 is a high-power drive motor. In this way, when the vehicle is lifted continuously multiple times, the high-power drive motor can drive the hydraulic pump 10 to continuously pump high-pressure hydraulic fluid into the shock absorbers 20. On the one hand, it can ensure sufficient power during the initial lift of the vehicle. On the other hand, the lifting speed of the vehicle during continuous lifting will not be affected, making the lifting speed of the vehicle more stable.

[0067] Combined with Figure 3 、 Figure 4 and Figure 5 As shown, the suspension system 100 further includes a third solenoid valve 503. The four first solenoid valves 501 and the two second solenoid valves 502 are integrally arranged to form an attitude regulating valve 50. A third solenoid valve 503 is connected between the attitude regulating valve 50 and the hydraulic pump 10. Specifically, by integrally arranging the four first solenoid valves 501 and the two second solenoid valves 502 to form the attitude regulating valve 50, the adjustment effect of the suspension system on the vehicle attitude is enhanced. And a third solenoid valve 503 is connected between the attitude regulating valve 50 and the hydraulic pump 10 to control the on / off of the oil passage 301 between the hydraulic pump 10 and the attitude regulating valve 50. This can not only optimize the structure and layout of the switching valves inside the control module of the suspension system 100, reduce the failure rate of the suspension system 100, improve the stability and reliability of the vehicle during driving, simplify the structure of the suspension system 100, simplify the installation process of the suspension system 100, but also reduce the weight and manufacturing cost of the suspension system 100.

[0068] A vehicle according to the present utility model may mainly include: the above-mentioned suspension system 100. Specifically, since the suspension system 100 has stronger anti-pollution ability and good structural layout and working performance, applying the suspension system 100 to a vehicle can not only reduce the weight and manufacturing cost of the vehicle, but also improve the stability and reliability of the vehicle.

[0069] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present utility model.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0071] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A suspension system, characterized in that: include: Hydraulic pumps; A shock absorber, the hydraulic pump is in communication with the shock absorber, the shock absorber is suitable for being connected to a wheel of a vehicle, a one-way valve is connected between the shock absorber and the hydraulic pump, and the one-way valve allows the oil in the shock absorber to flow back into the hydraulic pump; An electromagnetic switch valve is arranged between the hydraulic pump and the shock absorber and is arranged in parallel with the one-way valve. The electromagnetic switch valve is selectively opened and closed to allow the oil in the hydraulic pump to flow into the shock absorber.

2. The suspension system according to claim 1, characterized in that: An oil channel is arranged in the electromagnetic switch valve, one end of the oil channel is connected to the hydraulic pump, and the other end is connected to the shock absorber. The electromagnetic switch valve includes an electromagnetic coil and a valve core. The electromagnetic coil is circumferentially arranged on the outside of the valve core and is spaced apart from the valve core. The electromagnetic coil selectively drives the valve core to move so as to selectively switch the oil channel.

3. The suspension system according to claim 2, characterized in that: The oil channel includes a first oil channel and a second oil channel, the first end of the first oil channel is connected to the hydraulic pump, the second end of the first oil channel is connected to the first end of the second oil channel, the second end of the second oil channel is connected to the shock absorber, and the valve core selectively switches the first end of the second oil channel.

4. The suspension system according to claim 3, characterized in that: The valve core includes a head and a rod, the rod is arranged opposite to the first end of the second oil channel in a first direction, the rod is extended in the first direction, the head is circular and is arranged at the end of the rod adjacent to the second oil channel in the first direction, and the head selectively switches the first end of the second oil channel.

5. The suspension system according to claim 4, characterized in that: A conduit is arranged in the electromagnetic switch valve, the second oil channel is arranged in the conduit, and a guide matching slope is arranged at a portion of the conduit corresponding to the first end of the second oil channel, and the guide matching slope matches with the head guide.

6. The suspension system according to claim 1, characterized in that: There are a plurality of shock absorbers, each of which is suitable for being connected to a plurality of wheels of a vehicle respectively. There are a plurality of hydraulic pumps, each of which is selectively connected to at least one of the plurality of shock absorbers.

7. The suspension system according to claim 6, characterized in that: 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 selective shock absorbers, and any one of the four hydraulic pumps is selectively connected to at least one of the three selective shock absorbers.

8. The suspension system according to claim 1, characterized in that: It also includes a first solenoid valve and a second solenoid valve, the shock absorber includes 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 first solenoid valve is arranged between the hydraulic pump and each of the shock absorbers, there are two second solenoid valves, one of the two second solenoid valves is arranged between the two front shock absorbers, and the other of the two second solenoid valves is arranged between the two rear shock absorbers.

9. The suspension system according to claim 8, characterized in that It also includes a third solenoid valve. Four of the first solenoid valves and two of the second solenoid valves are integrated to form a posture adjustment valve. The third solenoid valve is connected between the posture adjustment valve and the hydraulic pump.

10. A vehicle, characterized in that: A suspension system comprising any one of claims 1-9.

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