Valve block and integrated valve for suspension system, suspension system and vehicle

Abstract

A valve block (1) and integrated valve (10) for a suspension system (100), a suspension system (100) and a vehicle (1000). The integrated valve (10) for the suspension system (100) comprises a valve block (1) and a control valve assembly (2), wherein a main flow path (11) and a plurality of branch flow paths (12) are provided in the valve block (1), first ends of the plurality of branch flow paths (12) all being connected to a first end of the main flow path (11), a second end of the main flow path (11) being adapted to be connected to a pump assembly (20), and second ends of the branch flow paths (12) being adapted to be connected to a shock absorber (30); and the control valve assembly (2) comprises a plurality of first electromagnetic valves (21), the branch flow paths (12) being provided with at least one first electromagnetic valve (21).

Description

Valve blocks and integrated valves for suspension systems, suspension systems, and vehicles

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to patent application number 202310968243.3, filed July 31, 2023, entitled “Valve block and integrated valve for a suspension system, a suspension system, and a vehicle,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to the technical field of vehicles, and in particular to a valve block and an integrated valve for a suspension system, a suspension system, and a vehicle. Background Art

[0004] In related technologies, some vehicles are equipped with a suspension height adjustment system, in which each shock absorber of the vehicle is provided with a regulating valve group for adjusting its height, so as to actively control the extension and shortening of each shock absorber. However, the system has a large number of parts and a complex structure, and occupies a large space in the entire vehicle.

[0005] Summary of the Invention

[0006] The present disclosure aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present disclosure proposes an integrated valve for a suspension system, which can achieve miniaturization and integration of the integrated valve.

[0007] The present disclosure also provides a suspension system having the integrated valve.

[0008] The present disclosure also provides a vehicle having the above-mentioned integrated valve or suspension system.

[0009] The present disclosure also provides a valve block for a suspension system.

[0010] According to an embodiment of the present disclosure, an integrated valve for a suspension system includes: a valve block, in which a main flow path and a plurality of branch flow paths are provided, wherein the first ends of the plurality of branch flow paths are connected to the first end of the main flow path, the second end of the main flow path is suitable for being connected to a pump assembly, and the second end of the branch flow path is suitable for being connected to a shock absorber; and a control valve assembly, wherein the control valve assembly includes a plurality of first solenoid valves, and at least one of the first solenoid valves is provided on the branch flow path.

[0011] According to the integrated valve for the suspension system according to the embodiment of the present disclosure, its valve block has a main flow path and multiple branch flow paths, each branch flow path is provided with a first solenoid valve, and each branch flow path is correspondingly connected to a shock absorber. The opening and closing of the first solenoid valve on the branch flow path can be adjusted to control whether each shock absorber is connected to the main flow path, so as to achieve the control of the posture of the suspension system. The integrated valve has a high degree of integration and occupies a small space, which is conducive to the miniaturization and integration of the integrated valve, and further helps to improve the space utilization rate of the whole vehicle and reduce the weight of the whole vehicle.

[0012] According to some embodiments of the present disclosure, the control valve assembly further includes at least one second solenoid valve, and the valve block is further provided with at least one connecting flow path, the two ends of the connecting flow path are respectively connected to the two branch flow paths, and the second solenoid valve is provided on the connecting flow path.

[0013] According to some embodiments of the present disclosure, each of the branch flow paths has a first flow path section and a second flow path section, one end of the first flow path section is constructed as the second end of the branch flow path, the other end of the first flow path section is connected to one end of the second flow path section, and the other end of the second flow path section is constructed as the first end of the branch flow path; the second flow path section is provided with the first solenoid valve; the first flow path sections of the two branch flow paths are connected through the connecting flow path.

[0014] According to some embodiments of the present disclosure, the axis of the first flow path segment, the axis of the second flow path segment and the axis of the main flow path are arranged perpendicular to each other, and the projections of the first flow path segment and the main flow path on a plane perpendicular to the axis of the main flow path do not overlap.

[0015] According to some embodiments of the present disclosure, the connecting flow path includes: a third flow path section, a fourth flow path section and a fifth flow path section, the two ends of the fourth flow path section are respectively connected to the first end of the third flow path section and the first end of the fifth flow path section, the second end of the third flow path section and the second end of the fifth flow path section are respectively connected to the two branch flow paths, the second end of the third flow path section and the second end of the fifth flow path section are constructed as the two ends of the connecting flow path, the fourth flow path section is provided with the second solenoid valve; the second end of the third flow path section is coaxially connected to the first flow path section connected thereto.

[0016] According to some embodiments of the present disclosure, the axis of the fourth flow path segment is parallel to the axis of the second flow path segment, and the opening of the fourth flow path segment at one end away from the third flow path segment is provided on the first side surface of the valve block, and the opening of the second flow path segment at one end away from the first flow path segment is provided on the first side surface of the valve block.

[0017] According to some embodiments of the present disclosure, the fifth flow segment includes: a first sub-flow segment, a second sub-flow segment and a third sub-flow segment, the two ends of the second sub-flow segment are respectively connected to the first end of the first sub-flow segment and the first end of the third sub-flow segment, the second end of the first sub-flow segment is connected to the fourth flow segment, the axis of the first sub-flow segment is parallel to the axis of the main flow path, the axis of the second sub-flow segment is parallel to the axis of the second flow segment, and the third sub-flow segment is coaxially connected to the first flow segment of the branch flow path connected to it.

[0018] According to some embodiments of the present disclosure, the control valve assembly further includes a third solenoid valve, and the valve block further includes an energy storage flow path connected to the main flow path, the energy storage flow path is suitable for connecting to an accumulator, and the third solenoid valve is provided on the energy storage flow path.

[0019] According to some embodiments of the present disclosure, the energy storage flow path includes: a sixth flow path section, a seventh flow path section and an eighth flow path section, the two ends of the seventh flow path section are respectively connected to the sixth flow path section and the eighth flow path section, the sixth flow path section is connected to the main flow path, the seventh flow path section is provided with the third solenoid valve, the axis of the sixth flow path section and the axis of the eighth flow path section are perpendicular to the axis of the main flow path, and the axis of the seventh flow path section is perpendicular to the axis of the sixth flow path section and the axis of the main flow path; the opening of the end of the seventh flow path section away from the eighth flow path section is provided on the first side surface of the valve block.

[0020] According to some embodiments of the present disclosure, the valve block has an inlet flow path, the inlet flow path is connected to the main flow path, and the inlet flow path is coaxially connected to the sixth flow path section.

[0021] According to some embodiments of the present disclosure, the control valve assembly includes a cover plate, which defines a accommodating cavity with the first side of the valve block, and each of the first solenoid valves includes a first valve body and a first coil, the first valve body portion is arranged in the branch flow path, the first coil is arranged in the first valve body, and each of the first coils is accommodated in the accommodating cavity.

[0022] According to some embodiments of the present disclosure, the integrated valve for the suspension system further includes a connecting piece, the valve block is provided with a mounting hole, the connecting piece is provided in the mounting hole, and the connecting piece partially protrudes from the valve block.

[0023] According to some embodiments of the present disclosure, the integrated valve for the suspension system further includes a vibration-damping sleeve, which is sleeved on the connecting piece and installed in the mounting hole.

[0024] According to some embodiments of the present disclosure, the vibration-damping sleeve is interference fit with the mounting hole.

[0025] According to some embodiments of the present disclosure, a plurality of spaced-apart protrusions are provided on the outer circumferential surface of the vibration-damping sleeve.

[0026] According to some embodiments of the present disclosure, the plurality of protrusions are evenly spaced apart along the circumferential direction of the vibration-damping sleeve.

[0027] According to another embodiment of the present disclosure, a suspension system includes: an integrated valve, which is the above-mentioned integrated valve for the suspension system; a plurality of shock absorbers, which are connected one-to-one with the plurality of branch flow paths; and a pump assembly, which is connected to the main flow path.

[0028] According to the suspension system of the embodiment of the present disclosure, its valve block has a main flow path and multiple branch flow paths, each branch flow path is provided with a first solenoid valve, and each branch flow path is correspondingly connected to a shock absorber. The controller can control whether each shock absorber is connected to the main flow path by adjusting the opening and closing of the first solenoid valve on the branch flow path, so as to realize the control of the posture of the suspension system. The integrated valve has a high degree of integration and occupies a small space, which is conducive to the miniaturization and integration of the integrated valve, and further helps to improve the space utilization rate of the whole vehicle and reduce the weight of the whole vehicle.

[0029] According to some embodiments of the present disclosure, the suspension system further includes an accumulator, which is connected to the main flow path through an energy storage flow path in the valve block.

[0030] According to some embodiments of the present disclosure, the plurality of shock absorbers include four shock absorbers, the plurality of branch flow paths include four branch flow paths, and the controller controls the first solenoid valve to enable the shock absorbers to adjust the vehicle body height.

[0031] A vehicle according to another embodiment of the present disclosure includes the above-mentioned integrated valve for a suspension system or the suspension system.

[0032] According to the vehicle of the embodiment of the present disclosure, its valve block has a main flow path and multiple branch flow paths, each branch flow path is provided with a first solenoid valve, and each branch flow path is correspondingly connected to a shock absorber. The controller can control whether each shock absorber is connected to the main flow path by adjusting the opening and closing of the first solenoid valve on the branch flow path, so as to achieve the control of the posture of the suspension system. The integrated valve has a high degree of integration and occupies a small space, which is conducive to the miniaturization and integration of the integrated valve, and further helps to improve the space utilization rate of the whole vehicle and reduce the weight of the whole vehicle.

[0033] According to some embodiments of the present disclosure, a frame connecting plate is fixedly provided on the frame of the vehicle, and the integrated valve is detachably connected to the frame connecting plate.

[0034] According to some embodiments of the present disclosure, the integrated valve is disposed adjacent to a middle position of the four wheels.

[0035] According to another aspect of an embodiment of the present disclosure, a valve block is provided with a main flow path and multiple branch flow paths, the first ends of the multiple branch flow paths are connected to the first end of the main flow path, the second end of the main flow path is suitable for connection to a pump assembly, and the second end of the branch flow path is suitable for connection to a shock absorber.

[0036] According to the valve block for the suspension system of the embodiment of the present disclosure, the valve block has a main flow path and multiple branch flow paths, each branch flow path is connected to a corresponding shock absorber, and the pump assembly of the suspension system can adjust the expansion and contraction of the shock absorber through the valve block to achieve control of the posture of the suspension system. The valve block has a high degree of integration and occupies a small space, which is conducive to the miniaturization and integration of the valve block, and further helps to improve the space utilization of the entire vehicle and reduce the weight of the entire vehicle.

[0037] According to some embodiments of the present disclosure, the valve block is further provided with at least one communicating flow path, and both ends of the communicating flow path are respectively connected to the two branch flow paths.

[0038] According to some embodiments of the present disclosure, each of the branch flow paths has a first flow path section and a second flow path section, one end of the first flow path section is constructed as the second end of the branch flow path, the other end of the first flow path section is connected to one end of the second flow path section, and the other end of the second flow path section is constructed as the first end of the branch flow path; the first flow path sections of the two branch flow paths are connected through the connecting flow path; the axis of the first flow path section, the axis of the second flow path section and the axis of the main flow path are arranged perpendicular to each other, and the projections of the first flow path section and the main flow path on a plane perpendicular to the axis of the main flow path do not overlap.

[0039] According to some embodiments of the present disclosure, the connecting flow path includes: a third flow path section, a fourth flow path section and a fifth flow path section, the two ends of the fourth flow path section are respectively connected to the first end of the third flow path section and the first end of the fifth flow path section, the second end of the third flow path section and the second end of the fifth flow path section are respectively connected to the two branch flow paths, the second end of the third flow path section and the second end of the fifth flow path section are constructed as the two ends of the connecting flow path; the second end of the third flow path section is coaxially connected to the first flow path section connected thereto.

[0040] According to some embodiments of the present disclosure, the axis of the fourth flow path segment is parallel to the axis of the second flow path segment, and the opening of the fourth flow path segment at one end away from the third flow path segment is provided on the first side surface of the valve block, and the opening of the second flow path segment at one end away from the first flow path segment is provided on the first side surface of the valve block.

[0041] According to some embodiments of the present disclosure, the fifth flow segment includes: a first sub-flow segment, a second sub-flow segment and a third sub-flow segment, the two ends of the second sub-flow segment are respectively connected to the first end of the first sub-flow segment and the first end of the third sub-flow segment, the second end of the first sub-flow segment is connected to the fourth flow segment, the axis of the first sub-flow segment is parallel to the axis of the main flow path, the axis of the second sub-flow segment is parallel to the axis of the second flow segment, and the third sub-flow segment is coaxially connected to the first flow segment of the branch flow path connected to it.

[0042] According to some embodiments of the present disclosure, the valve block is further provided with an energy storage flow path connected to the main flow path, and the energy storage flow path is suitable for being connected to an accumulator.

[0043] According to some embodiments of the present disclosure, the energy storage flow path includes: a sixth flow path section, a seventh flow path section and an eighth flow path section, the two ends of the seventh flow path section are respectively connected to the sixth flow path section and the eighth flow path section, the sixth flow path section is connected to the main flow path, the axis of the sixth flow path section and the axis of the eighth flow path section are perpendicular to the axis of the main flow path, and the axis of the seventh flow path section is perpendicular to the axis of the sixth flow path section and the axis of the main flow path; the opening of the end of the seventh flow path section away from the eighth flow path section is arranged on the first side surface of the valve block.

[0044] According to some embodiments of the present disclosure, the valve block has an inlet flow path, the inlet flow path is connected to the main flow path, and the inlet flow path is coaxially connected to the sixth flow path segment. Additional aspects and advantages of the present disclosure will be described in part in the following description and will become apparent from the following description or learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] FIG1 is a perspective view of an integrated valve according to an embodiment of the present disclosure;

[0046] FIG2 is a perspective view of a partial structure of an integrated valve according to an embodiment of the present disclosure;

[0047] FIG3 is an exploded view of an integrated valve according to an embodiment of the present disclosure;

[0048] FIG4 is a structural schematic diagram of a suspension system according to an embodiment of the present disclosure;

[0049] FIG5 is a cross-sectional view of an integrated valve at a main flow path according to an embodiment of the present disclosure;

[0050] 6 is a cross-sectional view of an integrated valve at a first flow path section according to an embodiment of the present disclosure;

[0051] FIG7 is another cross-sectional view of the integrated valve at the main flow path according to an embodiment of the present disclosure;

[0052] 8 is a cross-sectional view of an integrated valve at a first sub-flow section and a second sub-flow section according to an embodiment of the present disclosure;

[0053] FIG9 is a schematic diagram of the internal structure of an integrated valve according to an embodiment of the present disclosure;

[0054] 10 is a schematic diagram of the flow of oil through the integrated valve when multiple shock absorbers are simultaneously raised according to an embodiment of the present disclosure;

[0055] FIG11 is a schematic diagram of the flow of oil through the integrated valve when multiple shock absorbers descend simultaneously according to an embodiment of the present disclosure;

[0056] 12 is a schematic diagram of the flow of oil in the integrated valve when the F solenoid valve and the R solenoid valve are open according to an embodiment of the present disclosure;

[0057] 13 is a schematic diagram of the flow direction of oil when the accumulator is accumulating energy in the integrated valve according to an embodiment of the present disclosure;

[0058] FIG14 is a schematic diagram of the cooperation between the integrated valve and the vehicle frame connecting plate according to an embodiment of the present disclosure;

[0059] FIG. 15 is a schematic diagram of a vehicle according to an embodiment of the present disclosure.

[0060] Reference numerals:

[0061] Valve block 1, main flow path 11, branch flow path 12, FR branch flow path 12a, FL branch flow path 12b, RR branch flow path 12c, RL branch flow path 12d, first flow path section 121, second flow path section 122, connecting flow path 13, F connecting flow path 13a, R connecting flow path 13b, third flow path section 131, fourth flow path section 132, fifth flow path section 133, first sub-flow path section 1331, second sub-flow path section 1332 , third sub-flow section 1333, energy storage flow path 14, sixth flow section 141, seventh flow section 142, eighth flow section 143, inlet flow path 15, FR shock absorber connection port 16a, FL shock absorber connection port 16b, RR shock absorber connection port 16c, RL shock absorber connection port 16d, pump assembly connection port 16e, accumulator connection port 16f, mounting hole 17, fastener 18, steel ball 19, control valve assembly 2, first electric Magnetic valve 21, FR solenoid valve 21a, FL solenoid valve 21b, RR solenoid valve 21c, RL solenoid valve 21d, first valve body 211, first coil 212, second solenoid valve 22, F solenoid valve 22e, R solenoid valve 22f, second valve body 221, second coil 222, third solenoid valve 23, third valve body 231, third coil 232, cover plate 24, circuit board 25, plug-in interface 26, sealing ring 27, Frame connection assembly 3, vibration damping sleeve 31, connector 32, frame connection part 321, integrated valve 10, pump assembly 20, oil pump 201, fluid reservoir 202, one-way valve 203, return valve 204, pump attenuator 205, shock absorber 30, FR shock absorber 30a, FL shock absorber 30b, RR shock absorber 30c, RL shock absorber 30d, accumulator 40, suspension system 100, frame connection plate 200, vehicle 1000. DETAILED DESCRIPTION

[0062] The following describes in detail embodiments of the present disclosure, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0063] In the description of the present disclosure, it should be understood that the terms "length", "width", "height", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present disclosure 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 cannot be understood as a limitation on the present disclosure.

[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0065] In this disclosure, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.

[0066] The integrated valve 10 for the suspension system 100 , the suspension system 100 , and the vehicle 1000 according to embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0067] It should be noted that the suspension system 100 according to the embodiment of the present disclosure can be an air suspension system or a hydraulic suspension system, and the fluid flowing between the pump assembly 20, the valve block 1 and the shock absorber 30 can be gas or liquid. For example, in the following embodiments, the suspension system 100 is described as a hydraulic suspension system, and the fluid flowing between the pump assembly 20, the valve block 1 and the shock absorber 30 is described as oil.

[0068] 1 to 9 , an integrated valve 10 for a suspension system 100 includes a valve block 1 and a control valve assembly 2 , wherein:

[0069] The valve block 1 includes a main flow path 11 and multiple branch flow paths 12. The first ends of the multiple branch flow paths 12 are connected to the first end of the main flow path 11. The second end of the main flow path 11 is adapted to connect to a pump assembly 20. The pump assembly 20 is configured to regulate the oil pressure in the main flow path 11. The pump assembly 20 pumps oil into the main flow path 11 to increase the oil pressure therein. The oil in the main flow path 11 can also flow back to the pump assembly 20 to reduce the oil pressure therein. The second ends of the branch flow paths 12 are adapted to connect to shock absorbers 30. Each branch flow path 12 is connected to a corresponding shock absorber 30. The number of shock absorbers 30 can be the same as the number of wheels of the vehicle 1000. By controlling the oil pressure in a branch flow path 12, the oil pressure in the corresponding shock absorber 30 can be adjusted, thereby controlling the raising and lowering of the shock absorber 30 and, in turn, the posture of the suspension system 100. The integrated valve 10 can include only one valve block 1 to improve the integration of the integrated valve 10.

[0070] The control valve assembly 2 includes multiple first solenoid valves 21. At least one first solenoid valve 21 is provided on the branch flow path 12. The first solenoid valve 21 is used to adjust the flow area of ​​the branch flow path 12. In other words, the first solenoid valve 21 on the branch flow path 12 can control the on / off state of the branch flow path 12. The first solenoid valve 21 has an open state and a closed state. When the first solenoid valve 21 on the branch flow path 12 is in the open state, the branch flow path 12 connects its corresponding shock absorber 30 with the main flow path 11, and the oil pressure in the shock absorber 30 can be adjusted through the main flow path 11. When the first solenoid valve 21 on the branch flow path 12 is in the closed state, the branch flow path 12 disconnects its corresponding shock absorber 30 from the main flow path 11. Changes in the oil pressure in the main flow path 11 do not affect the oil pressure of the branch flow path 12 and its corresponding shock absorber 30. In this case, the main flow path 11 can regulate the oil pressure of other shock absorbers 30. The integrated valve 10 can include only one control valve assembly 2 to improve the integration level of the integrated valve 10.

[0071] It should be noted that when the first solenoid valve 21 is in the open state, the opening size of the first solenoid valve 21 can be adjusted within a first preset opening range, so that the first solenoid valve 21 can control the increase or decrease of the flow area of ​​its corresponding branch flow path 12, thereby achieving the control of the flow rate of oil in the branch flow path 12.

[0072] In a specific embodiment, as shown in FIG4 , the suspension system 100 includes: a FR (front right) shock absorber 30a, a FL (front left) shock absorber 30b, a RR (rear right) shock absorber 30c, and a RL (rear left) shock absorber 30d. The valve block 1 has a main flow path 11 and a FR branch flow path 12a, a FL branch flow path 12b, a RR branch flow path 12c, and a RL branch flow path 12d. The FR branch flow path 12a connects the main flow path 11 and the FR shock absorber 30a, the FL branch flow path 12b connects the main flow path 11 and the FL shock absorber 30b, the RR branch flow path 12c connects the main flow path 11 and the RR shock absorber 30c, and the RL branch flow path 12d. d connects the main flow path 11 and the RL shock absorber 30d, and the control valve assembly 2 includes a FR solenoid valve 21a, a FL solenoid valve 21b, a RR solenoid valve 21c, and an RL solenoid valve 21d. The FR solenoid valve 21a is arranged in the FR branch flow path 12a and is used to control the flow area of ​​the FR branch flow path 12a. The FL solenoid valve 21b is arranged in the FL branch flow path 12b and is used to control the flow area of ​​the FL branch flow path 12b. The RR solenoid valve 21c is arranged in the RR branch flow path 12c and is used to control the flow area of ​​the FR branch flow path 12a. The RL solenoid valve 21d is arranged in the RL branch flow path 12d and is used to control the flow area of ​​the FR branch flow path 12a.

[0073] It should be noted that the suspension system 100 can adjust the posture of one or more of the FR shock absorber 30a, FL shock absorber 30b, RR shock absorber 30c, and RL shock absorber 30d to improve the adjustment efficiency of the suspension system 100. That is to say, when the suspension system 100 needs to control the posture of any one or more shock absorbers 30, the first solenoid valve 21 on the corresponding branch flow path 12 can be opened to connect the shock absorber 30 whose posture needs to be adjusted with the main flow path 11.

[0074] When the suspension system 100 needs to control the posture of the FR shock absorber 30a, the FR solenoid valve 21a opens, connecting the FR shock absorber 30a to the main flow path 11 via the FR branch flow path 12a. The pump assembly 20 adjusts the oil pressure in the main flow path 11 to change the oil pressure within the FR shock absorber 30a. When the FR shock absorber 30a reaches a preset length, the FR solenoid valve 21a closes to maintain the adjusted length of the FR shock absorber 30a. When the FR shock absorber 30a needs to be extended, the pump assembly 20 pumps oil into the main flow path 11, pressurizing the oil in the main flow path 11 and allowing it to flow into the FR shock absorber 30a through the FR branch flow path 12a. When the FR shock absorber 30a needs to be shortened, the FR shock absorber 30a, under the influence of the vehicle's own weight, causes the oil in the FR shock absorber 30a to flow through the FR branch flow path 12a and the main flow path 11 back to the pump assembly 20, thereby adjusting the posture of the FR shock absorber 30a.

[0075] When the suspension system 100 needs to control the posture of the FL shock absorber 30b, the FL solenoid valve 21b opens, connecting the FL shock absorber 30b to the main flow path 11 via the FL branch flow path 12b. The pump assembly 20 adjusts the oil pressure in the main flow path 11 to change the oil pressure within the FL shock absorber 30b. When the FL shock absorber 30b reaches a preset length, the FL solenoid valve 21b closes to maintain the adjusted length of the FL shock absorber 30b. When the FL shock absorber 30b needs to be extended, the pump assembly 20 pumps oil into the main flow path 11, pressurizing the oil therein and allowing it to flow into the FL shock absorber 30b through the FL branch flow path 12b. When the FL shock absorber 30b needs to be shortened, the vehicle's own weight causes the oil within the FL shock absorber 30b to flow back through the FL branch flow path 12b and the main flow path 11 to the pump assembly 20, thereby adjusting the posture of the FL shock absorber 30b.

[0076] When the suspension system 100 needs to control the posture of the RR shock absorber 30c, the RR solenoid valve 21c opens, connecting the RR shock absorber 30c to the main flow path 11 via the RR branch flow path 12c. The pump assembly 20 adjusts the oil pressure in the main flow path 11 to change the oil pressure within the RR shock absorber 30c. When the RR shock absorber 30c reaches a preset length, the RR solenoid valve 21c closes to maintain the adjusted length of the RR shock absorber 30c. When the RR shock absorber 30c needs to be extended, the pump assembly 20 pumps oil into the main flow path 11, pressurizing the oil in the main flow path 11 and allowing it to flow into the RR shock absorber 30c through the RR branch flow path 12c. When the RR shock absorber 30c needs to be shortened, the RR shock absorber 30c, under the influence of the vehicle's own weight, causes the oil in the RR shock absorber 30c to flow back through the RR branch flow path 12c and the main flow path 11 to the pump assembly 20, thereby adjusting the posture of the RR shock absorber 30c.

[0077] When the suspension system 100 needs to control the posture of the RL shock absorber 30d, the RL solenoid valve 21d opens, connecting the RL shock absorber 30d to the main flow path 11 via the RL branch flow path 12d. The pump assembly 20 adjusts the oil pressure in the main flow path 11 to change the oil pressure within the RL shock absorber 30d. When the RL shock absorber 30d reaches a preset length, the RL solenoid valve 21d closes to maintain the adjusted length of the RL shock absorber 30d. When the RL shock absorber 30d needs to extend, the pump assembly 20 pumps oil into the main flow path 11, pressurizing the oil therein and allowing it to flow into the RL shock absorber 30d through the RL branch flow path 12d. When the RL shock absorber 30d needs to contract, the weight of the vehicle causes the oil within the RL shock absorber 30d to flow back through the RL branch flow path 12d and the main flow path 11 to the pump assembly 20, thereby adjusting the posture of the RL shock absorber 30d.

[0078] When the suspension system 100 needs to control the FR shock absorber 30a, FL shock absorber 30b, RR shock absorber 30c, and RL shock absorber 30d to rise and fall simultaneously, the FR solenoid valve 21a, FL solenoid valve 21b, RR solenoid valve 21c, and RL solenoid valve 21d are opened simultaneously to connect all shock absorbers 30 to the main flow path 11.

[0079] 4 and 10 , when the FR shock absorber 30a, the FL shock absorber 30b, the RR shock absorber 30c, and the RL shock absorber 30d need to be extended simultaneously, the pump assembly 20 can pump oil into the main flow path 11 so that the oil in the main flow path 11 is pressurized and flows to the corresponding shock absorber 30 through the FR branch flow path 12a, the FL branch flow path 12b, the RR branch flow path 12c, and the RL branch flow path 12d to lift the suspension as a whole. At the same time, when each shock absorber 30 reaches a preset length, all first solenoid valves 21 are closed to keep each shock absorber 30 at the adjusted length.

[0080] 4 and 11 , when the FR shock absorber 30a, the FL shock absorber 30b, the RR shock absorber 30c, and the RL shock absorber 30d need to be shortened at the same time, the FR shock absorber 30a, the FL shock absorber 30b, the RR shock absorber 30c, and the RL shock absorber 30d, under the action of the vehicle's own weight, causes the oil in each shock absorber 30 to flow back to the pump assembly 20 through the corresponding branch flow path 12 and the main flow path 11, so as to lower the suspension as a whole. At the same time, when each shock absorber 30 reaches a preset length, all first solenoid valves 21 are closed to keep each shock absorber 30 at the adjusted length.

[0081] According to the integrated valve 10 for the suspension system 100 according to the embodiment of the present disclosure, its valve block 1 has a main flow path 11 and multiple branch flow paths 12, each branch flow path 12 is provided with a first solenoid valve 21, and each branch flow path 12 is correspondingly connected to a shock absorber 30. The opening and closing of the first solenoid valve 21 on the branch flow path 12 can be adjusted to control whether each shock absorber 30 is connected to the main flow path 11, so as to achieve the control of the posture of the suspension system 100. The integrated valve 10 has a high degree of integration and occupies a small space, which is conducive to the miniaturization and integration of the integrated valve 10, and further conducive to improving the space utilization rate of the whole vehicle and reducing the weight of the whole vehicle.

[0082] In some embodiments of the present disclosure, as shown in Figure 4, the control valve assembly 2 also includes at least one second solenoid valve 22, and the valve block 1 is further provided with at least one connecting flow path 13, the two ends of the connecting flow path 13 are respectively connected to the two branch flow paths 12, and a second solenoid valve 22 is provided on the connecting flow path 13. The second solenoid valve 22 on the connecting flow path 13 is used to adjust the flow area of ​​the connecting flow path 13, that is, the second solenoid valve 22 on the connecting flow path 13 can control the on and off of the connecting flow path 13, and the second solenoid valve 22 has an open state and a closed state. When the second solenoid valve 22 on the connecting flow path 13 is in an open state, the two branch flow paths 12 connected to the connecting flow path 13 can be connected, so that the shock absorber 30 corresponding to the two branch flow paths 12 can quickly establish a pressure balance, thereby keeping the posture of the whole vehicle balanced and maintaining the stability of the whole vehicle.

[0083] It should be noted that when the second solenoid valve 22 is in the open state, the opening size of the second solenoid valve 22 can be adjusted within a second preset opening range, so that the second solenoid valve 22 can control the increase or decrease of the flow area of ​​its corresponding connecting flow path 13, thereby achieving the control of the flow rate of oil in the connecting flow path 13.

[0084] In some embodiments of the present disclosure, a connecting flow path 13 is provided between two adjacent branch flow paths 12. For example, the valve block 1 is provided with four branch flow paths 12, a connecting flow path 13 is provided between two of the four branch flow paths 12, and a connecting flow path 13 is provided between the other two of the four branch flow paths 12.

[0085] In one specific embodiment, as shown in Figures 4 to 9, the valve block 1 defines an F (front) communication flow path 13a and an R (rear) communication flow path 13b. The F communication flow path 13a connects the FR branch flow path 12a and the FL branch flow path 12b. The F communication flow path 13a is provided with an F solenoid valve 22e for adjusting the flow area of ​​the F communication flow path 13a. The R communication flow path 13b connects the RR branch flow path 12c and the RL branch flow path 12d. The R communication flow path 13b is provided with an R solenoid valve 22f for adjusting the flow area of ​​the R communication flow path 13b.

[0086] 4 and 12 , when the pressures of the FR shock absorber 30a and the FL shock absorber 30b are unbalanced, the F solenoid valve 22e can be opened to allow the oil between the FR shock absorber 30a and the FL shock absorber 30b to communicate, and the oil inside the FR shock absorber 30a and the FL shock absorber 30b can flow to the low-pressure side by itself until the pressure balance is re-established, and then the F solenoid valve 22e can be closed.

[0087] 4 and 12 , when the pressure of the RR shock absorber 30c and the RL shock absorber 30d is unbalanced, the R solenoid valve 22f can be opened to connect the oil between the RR shock absorber 30c and the RL shock absorber 30d, and the oil inside the RR shock absorber 30c and the RL shock absorber 30d can flow to the low-pressure side by itself until the pressure balance is re-established, and then the R solenoid valve 22f is closed.

[0088] In some embodiments of the present disclosure, as shown in Figures 1 to 9, each branch flow path 12 has a first flow path section 121 and a second flow path section 122. One end of the first flow path section 121 is configured as the second end of the branch flow path 12. In other words, one end of the first flow path section 121 is suitable for connection to the shock absorber 30. The other end of the first flow path section 121 is connected to one end of the second flow path section 122. The other end of the second flow path section 122 is configured as the first end of the branch flow path 12. In other words, the other end of the second flow path section 122 is connected to the main flow path. The second flow path section 122 is provided with a first solenoid valve 21, which can adjust the flow area of ​​the second flow path section 122. The first flow path sections 121 of the two branch flow paths 12 are connected through a connecting flow path 13, and the third end of the branch flow path 12 is constructed at the connection between the two branch flow paths 12 and the connecting flow path 13. Therefore, when it is necessary to establish a pressure balance between the two shock absorbers 30, there is no need to control the first solenoid valve 21 on the branch flow path 12 corresponding to the shock absorber 30 to open. The two shock absorbers 30 can be connected by controlling the second solenoid valve 22 on the connecting flow path 13 to open, which is beneficial to improving the control efficiency of the integrated valve 10.

[0089] In some embodiments of the present disclosure, as shown in Figures 1 to 9, the control valve assembly 2 also includes a third solenoid valve 23, and the valve block 1 is further provided with an energy storage flow path 14 connected to the main flow path 11. The energy storage flow path 14 is suitable for being connected to the accumulator 40. A third solenoid valve 23 is provided on the energy storage flow path 14. The third solenoid valve 23 on the energy storage flow path 14 is used to adjust the flow area of ​​the energy storage flow path 14. That is to say, the third solenoid valve 23 on the energy storage flow path 14 can control the on and off of the energy storage flow path 14. When the accumulator 40 stores and releases energy, the third solenoid valve 23 opens to connect the accumulator 40 with the main flow path 11, and the pump assembly 20 can pump oil to the accumulator 40 through the main flow path 11 and the energy storage flow path 14 to store energy in the accumulator 40. When the shock absorber 30 needs to be extended, the pump assembly 20 and the accumulator 40 can simultaneously deliver oil to the main flow path 11. The accumulator 40 can reduce the power of the pump assembly 20, reduce the working noise of the pump assembly 20, and improve the service life of the pump assembly 20. At the same time, when a large number of shock absorbers 30 need to be lifted, the load of the main flow path 11 requires a larger flow rate, and the accumulator 40 can release oil to supplement the flow rate of the pump assembly 20.

[0090] It should be noted that when the third solenoid valve 23 is in the open state, the opening size of the third solenoid valve 23 can be adjusted within a third preset opening range, so that the third solenoid valve 23 can control the increase or decrease of the flow area of ​​the corresponding energy storage flow path 14, thereby controlling the flow rate of oil in the energy storage flow path 14.

[0091] In some embodiments of the present disclosure, as shown in Figures 5 to 9, the axis of the first flow path section 121, the axis of the second flow path section 122, and the axis of the main flow path 11 are arranged perpendicular to each other, and the projections of the first flow path section 121 and the main flow path 11 on a plane perpendicular to the axis of the main flow path 11 do not overlap, thereby facilitating the processing and manufacturing of the valve block 1, making full use of the space inside the valve block 1, and improving the integration of the valve block 1.

[0092] 1 and 5 to 8 , the direction parallel to the axis of the second flow path section 122 is recorded as the first direction, the direction parallel to the axis of the main flow path 11 is recorded as the second direction, and the direction parallel to the axis of the first flow path section 121 is recorded as the third direction. The first direction, the second direction and the third direction are perpendicular to each other. The main flow path 11 can extend along the second direction. Each branch flow path 12 has a first flow path section 121 extending along the third direction and a second flow path section 122 extending along the first direction. The second flow path section 122 connects the first flow path section 121 and the main flow path 11. The second flow path section 122 is provided with a first solenoid valve 21. The first direction can be the height direction of the valve block 1, that is, the up and down direction in FIG. 1 , the second direction can be the width direction of the valve block 1, that is, the left and right direction in FIG. 1 , and the third direction can be the length direction of the valve block 1, that is, the front and back direction in FIG. 1 .

[0093] It should be noted that the valve block 1 is an integral part. The valve block 1 can be integrally formed. The valve block 1 can also be formed by fixing multiple blocks together, such as welding or bolting multiple blocks together. The blank of the valve block 1 can be a solid plate. The main flow path 11, branch flow path 12, connecting flow path 13 and other flow paths in the valve block 1 are all formed by machining the solid plate. A drilling tool can be used to cut along the second direction to machine the main flow path 11. The drilling tool can be used to cut along the third direction and the first direction to machine the first flow path section 121 and the second flow path section 122. The main flow path 11 can be a through hole, and both ends of the main flow path 11 can be provided with a sealing The sealed steel ball 19, the first flow path section 121 and the second flow path section 122 are connected blind holes, the first flow path section 121 and the main flow path 11 are staggered in the first direction, the first flow path section 121 is formed with a shock absorber connection port suitable for communicating with the shock absorber 30 on the front side of the valve block 1, the shock absorber 30 connection port can be a threaded hole for convenient connection of the hydraulic pipeline, the second flow path section 122 passes through the main flow path 11, and the second flow path section 122 is formed with a first solenoid valve installation port suitable for installing the first solenoid valve 21 on the upper side of the valve block 1, thereby facilitating the processing and manufacturing of the valve block 1, making full use of the space in the valve block 1, and improving the integration of the valve block 1.

[0094] 1 to 9 , a FR branch flow path 12a, a FL branch flow path 12b, a RR branch flow path 12c, and a RL branch flow path 12d are defined in the valve block 1, wherein the first flow path section 121 of the FR branch flow path 12a is formed with a FR shock absorber connection port 16a suitable for communicating with the FR shock absorber 30a on the front side surface of the valve block 1, the first flow path section 121 of the FL branch flow path 12b is formed with a FL shock absorber connection port 16b suitable for communicating with the FL shock absorber 30b on the front side surface of the valve block 1, the first flow path section 121 of the RR branch flow path 12c is formed with a RR shock absorber connection port 16c suitable for communicating with the RR shock absorber 30c on the front side surface of the valve block 1, and the first flow path section 121 of the RL branch flow path 12d is formed with an RL shock absorber connection port 16d suitable for communicating with the RL shock absorber 30d on the front side surface of the valve block 1.

[0095] In addition, the FR shock absorber connection port 16a, the FL shock absorber connection port 16b, the RR shock absorber connection port 16c, and the RL shock absorber connection port 16d can be directly connected to the corresponding shock absorber 30, or can be connected to the central control cylinder of the suspension system 100 and connected to the corresponding shock absorber 30 through the central control cylinder.

[0096] In some embodiments of the present disclosure, as shown in Figures 1 to 9, the connecting flow path 13 includes: a third flow path section 131, a fourth flow path section 132 and a fifth flow path section 133, the two ends of the fourth flow path section 132 are respectively connected to the first end of the third flow path section 131 and the first end of the fifth flow path section 133, the second end of the third flow path section 131 and the second end of the fifth flow path section 133 are respectively connected to the two branch flow paths 12, the second end of the third flow path section 131 and the second end of the fifth flow path section 133 are respectively connected to the two branch flow paths 12, the second end of the third flow path section 131 and the second end of the fifth flow path section 133 are constructed as the two ends of the connecting flow path 13, the fourth flow path section 132 is provided with a second solenoid valve 22, in other words, the third flow path section 131 and the fifth flow path section 133 of the connecting flow path 13 are respectively connected to their respective corresponding branch flow paths 12, so that the connecting flow path 13 connects the two branch flow paths 12, and the third flow path section 131, the fourth flow path section 132 and the fifth flow path section 133 of the connecting flow path 13 can all be solid plates formed by drilling tools.

[0097] In some embodiments of the present disclosure, referring to Figures 1 to 9, the second end of the third flow path section 131 is coaxially connected to the first flow path section 121 connected thereto. It can be understood that in the first direction, the third flow path section 131 and the first flow path section 121 are both located on the same side of the main flow path 11, and the third flow path section 131 and the first flow path section 121 of the corresponding branch flow path 12 can be located at the same height. The third flow path section 131 and the first flow path section 121 of the corresponding branch flow path 12 can both extend along the third direction. That is to say, when manufacturing the valve block 1, the drilling tool can cut down along the third direction to simultaneously process the third flow path section 131 and the first flow path section 121 of the corresponding branch flow path 12, which is conducive to reducing the processing difficulty of the valve block 1, simplifying the drilling process, and improving the processing efficiency and manufacturability of the valve block 1.

[0098] In some embodiments of the present disclosure, as shown in Figures 1 to 9, the axis of the fourth flow path section 132 is parallel to the axis of the second flow path section 122, so as to facilitate the processing and manufacturing of the valve block 1, make full use of the space in the valve block 1, and improve the integration of the valve block 1. At the same time, the opening of the fourth flow path section 132 at one end away from the third flow path section 131 is provided on the first side surface of the valve block 1, and the opening of the second flow path section 122 at one end away from the first flow path section 121 is provided on the first side surface of the valve block 1. Thus, the first solenoid valve 21 can be inserted into the second flow path section 122 from the opening at one end of the second flow path section 122 away from the first flow path section 121, and the second solenoid valve 22 can be inserted into the fourth flow section 132 from the opening at one end of the fourth flow path section 132 away from the third flow path section 131. The openings for installing the first solenoid valve 21 and the second solenoid valve 22 are both provided on the same side surface of the valve block 1, which is conducive to the installation of the first solenoid valve 21 and the second solenoid valve 22.

[0099] Among them, the first side surface of the valve block 1 can be the upper side surface of the valve block 1, that is, the second flow path section 122 is formed with a first solenoid valve installation port suitable for installing the first solenoid valve 21 on the upper side surface of the valve block 1, and the fourth flow path section 132 is formed with a second solenoid valve installation port suitable for installing the second solenoid valve 22 on the upper side surface of the valve block 1.

[0100] In some embodiments of the present disclosure, referring to Figures 1 to 9, the fifth flow path segment 133 includes: a first sub-flow path segment 1331, a second sub-flow path segment 1332 and a third sub-flow path segment 1333, the two ends of the second sub-flow path segment 1332 are respectively connected to the first end of the first sub-flow path segment 1331 and the first end of the third sub-flow path segment 1333, the second end of the first sub-flow path segment 1331 is connected to the fourth flow path segment 132, the axis of the first sub-flow path segment 1331 is parallel to the axis of the main flow path 11, the axis of the second sub-flow path segment 1332 is parallel to the axis of the second flow path 122, and the third sub-flow path segment 1333 is coaxially connected to the first flow path segment 121 of the branch flow path 12 connected thereto, that is, the fifth flow path segment 133 includes: a first sub-flow path segment 1331, a second sub-flow path segment 1332, and a third sub-flow path segment 1333. A sub-flow section 1331 extends along the second direction, a second sub-flow section 1332 extends along the first direction, and the third sub-flow section 1333 is relative to and connected to the first flow section 121 of the corresponding branch flow path 12. In the first direction, the third sub-flow section 1333 and the first flow section 121 are both located on the same side of the main flow path 11, and the third sub-flow section 1333 and the first flow section 121 of the corresponding branch flow path 12 can be located at the same height. The third sub-flow section 1333 and the first flow section 121 of the corresponding branch flow path 12 can both extend along the third direction, so as to evenly distribute the flow paths in the valve block 1 through the positions and relative relationships of the flow paths in the distribution valve block 1, and facilitate the processing and manufacturing of each flow path.

[0101] Among them, when manufacturing the valve block 1, the drilling tool can cut along the second direction to process the first sub-flow section 1331, the first sub-flow section 1331 can pass through the fourth flow section 132, the drilling tool can cut along the first direction to process the second sub-flow section 1332, and the drilling tool can cut along the third direction to simultaneously process the third sub-flow section 1333 and the first flow section 121 of the branch flow path 12 corresponding thereto, thereby helping to reduce the processing difficulty of the valve block 1, simplify the drilling process, and improve the processing efficiency and manufacturability of the valve block 1.

[0102] In some embodiments of the present disclosure, as shown in Figures 1 to 9, the energy storage flow path 14 includes: a sixth flow path section 141, a seventh flow path section 142, and an eighth flow path section 143. The two ends of the seventh flow path section 142 are connected to the sixth flow path section 141 and the eighth flow path section 143 respectively. The sixth flow path section 141 is connected to the main flow path 11. The seventh flow path section 142 is provided with a third solenoid valve 23. The axes of the sixth flow path section 141 and the eighth flow path section 143 are perpendicular to the axis of the main flow path 11, and the axis of the seventh flow path section 142 is perpendicular to the axes of the sixth flow path section 141 and the main flow path 11. The opening of the end of the seventh flow path section 142 away from the eighth flow path section 143 is provided on the first side surface of the valve block 1. That is, the axis of the sixth flow path section 141 is perpendicular to the axis of the main flow path 11, and the axis of the eighth flow path section 143 is perpendicular to the axis of the main flow path 11. The axes of the seventh flow path section 142, the sixth flow path section 141, and the main flow path 11 are perpendicular to each other. In other words, the seventh flow path section 142 extends along the first direction, and the sixth flow path section 141 and the eighth flow path section 143 both extend along the third direction. The sixth flow path section 141 and the eighth flow path section 143 can be staggered in the first direction. The third solenoid valve 23 on the seventh flow path section 142 can be used to control the on and off of the seventh flow path section 142. The sixth flow path section 141, the seventh flow path section 142, and the eighth flow path section 143 of the accumulator flow path 14 can be solid plates formed by drilling tools. The seventh flow path section 142 has a third solenoid valve installation port formed on the first side surface of the valve block 1 for installing the third solenoid valve 23. The eighth flow path section 143 has an accumulator connection port 16f formed on the rear side surface of the valve block 1 for connecting to the accumulator 40. The accumulator connection port 16f can be a threaded hole to facilitate connection to a hydraulic pipeline.

[0103] It can be understood that the third solenoid valve 23 can be inserted into the seventh flow path section 142 from the opening at one end of the seventh flow path section 142 away from the eighth flow path section 143, and the openings for installing the first solenoid valve 21, the second solenoid valve 22 and the third solenoid valve 23 can all be set on the same side of the valve block 1, which is facilitating the installation of the first solenoid valve 21, the second solenoid valve 22 and the third solenoid valve 23.

[0104] In some embodiments of the present disclosure, as shown in Figures 1 to 9, the valve block 1 has an inlet flow path 15, which is connected to the main flow path 11 and is coaxially connected to the sixth flow path section 141. The inlet flow path 15 can extend along the third direction, and the inlet flow path 15 is opposite to and connected to the sixth flow path section 141. The inlet flow path 15 can be a solid plate formed by a drilling tool. The inlet flow path 15 is formed with a pump assembly connection port 16e suitable for connecting to the pump assembly 20 on the front side surface of the valve block 1. The pump assembly connection port 16e can be a threaded hole to facilitate the connection of a hydraulic pipeline. When drilling the inlet flow path 15 and the sixth flow path section 141, the drilling tool can cut from the same position to improve the integrity and integration of the valve block 1.

[0105] 5 , the inlet flow path 15 passes through the middle section of the main flow path 11. In the second direction, the lengths of the main flow paths 11 on both sides of the inlet flow path 15 are equal, and the main flow path 11 on each side is connected to the same number of branch flow paths 12, so that the layout and distribution of each flow path in the valve block 1 are reasonable, the valve block 1 is easy to process, and when the main flow path 11 adjusts the pressure of each branch flow path 12, the corresponding speed of each branch flow path 12 is basically the same. At the same time, the flow path distribution density at different positions on the valve block 1 is not much different, so as to ensure the structural strength and reliability of the valve block 1.

[0106] 5 , the diameter of the inlet flow path 15 is larger than the diameter of the main flow path 11 to ensure the flow of the inlet flow path 15 so that the pump assembly 20 can quickly adjust the pressure of the main flow path 11 through the inlet flow path 15 .

[0107] In some embodiments of the present disclosure, as shown in Figures 1 to 3, the control valve assembly 2 includes a cover plate 24, and the cover plate 24 and the first side surface of the valve block 1 define an accommodating cavity. The first side surface of the valve block 1 can be the upper side surface of the valve block 1. Each first solenoid valve 21 includes a first valve body 211 and a first coil 212. The first valve body 211 is partially arranged in the branch flow path 12, and the first coil 212 is arranged in the first valve body 211. Each first coil 212 is accommodated in the accommodating cavity. The accommodating cavity can protect the first coil 212 and improve the service life and reliability of the first coil 212. The first valve body 211 may include a first valve body and a first valve core. The first coil 212 can be sleeved on the first valve body. The first valve body is provided with a first valve hole. By controlling the power on of the first coil 212, the first valve core can be controlled to move in the first valve body to control the opening size of the first valve hole, thereby adjusting the flow area of ​​the branch flow path 12.

[0108] In some embodiments of the present disclosure, as shown in Figures 1 to 3, each second solenoid valve 22 includes a second valve body 221 and a second coil 222. The second valve body 221 is partially arranged in the connecting flow path 13, and the second coil 222 is arranged in the second valve body 221. Each second coil 222 is accommodated in an accommodating cavity. The accommodating cavity can protect the second coil 222 and improve the service life and reliability of the second coil 222. The second valve body 221 may include a second valve body and a second valve core. The second coil 222 can be sleeved on the second valve body. The second valve body is provided with a second valve hole. By controlling the power on of the second coil 222, the second valve core can be controlled to move in the second valve body to control the opening size of the second valve hole, thereby adjusting the flow area of ​​the connecting flow path 13.

[0109] In some embodiments of the present disclosure, as shown in Figures 1 to 3, each third solenoid valve 23 includes a third valve body 231 and a third coil 232. The third valve body 231 is partially arranged in the energy storage flow path 14, and the third coil 232 is arranged in the third valve body 231. Each third coil 232 is accommodated in an accommodating cavity. The accommodating cavity can protect the third coil 232 and improve the service life and reliability of the third coil 232. The third valve body 231 may include a third valve body and a third valve core. The third coil 232 can be sleeved on the third valve body. The third valve body is provided with a third valve hole. By controlling the power on of the third coil 232, the third valve core can be controlled to move in the third valve body to control the opening size of the third valve hole, thereby adjusting the flow area of ​​the energy storage flow path 14.

[0110] In some embodiments of the present disclosure, as shown in Figure 2, the control valve assembly 2 also includes a circuit board 25, which is arranged in the accommodating cavity. The circuit board 25 is electrically connected to the first coil 212, the second coil 222 and the third coil 232. A plug-in interface 26 is also provided on the circuit board 25, and the plug-in interface 26 is suitable for being electrically connected to the controller. The controller can control the power-on of the first coil 212, the second coil 222 and the third coil 232 respectively through the plug-in interface 26 and the circuit board 25 to achieve posture adjustment of the suspension system 100.

[0111] As shown in Figure 3, the control valve assembly also includes a sealing ring 27, which is arranged between the cover plate 24 and the valve block 1 to improve the sealing of the accommodating cavity and prevent water or dust from entering the accommodating cavity, thereby improving the service life and reliability of the first coil 212, the second coil 222, the third coil 232 and the circuit board 25.

[0112] In some embodiments of the present disclosure, as shown in Figures 1 and 3, the integrated valve 10 also includes a connecting piece 32, the valve block 1 is provided with a mounting hole 17, the connecting piece 32 is provided in the mounting hole 17, and the connecting piece 32 partially protrudes from the valve block 1. The part of the connecting piece 32 protruding from the valve block 1 can be used to connect with the frame connecting plate 200, and the frame connecting plate 200 can be fixed to the frame of the vehicle 1000. The valve block 1 can be connected to the frame connecting plate 200 of the vehicle 1000 through the connecting piece 32, so that the integrated valve 10 can be fixed on the frame. The integrated valve 10 is small in size, simple and compact in structure, has little impact on surrounding components, and is easy to disassemble and maintain.

[0113] In some embodiments of the present disclosure, as shown in Figures 1, 3 and 14, the integrated valve 10 also includes a vibration-damping sleeve 31, which is sleeved on the connecting member 32 and installed in the mounting hole 17. The vibration-damping sleeve 31 can reduce the vibration of the frame transmitted to the valve block 1, improve the reliability of the valve block 1, and realize the soft connection between the valve block 1 and the frame. In this embodiment, the vibration-damping sleeve 31 is a rubber part, and the mounting hole 17 can be constructed as a mounting hole 17 with a groove structure. The vibration-damping sleeve 31 can form an integrated structure with the mounting hole 17 through a vulcanization process. In addition, the vibration-damping sleeve 31 can also be fixedly connected to the mounting hole 17 by bonding, clamping, etc. The connecting member 32 can be a double-headed stud, one end of the connecting member 32 is threadedly matched with the vibration-damping sleeve 31, and the frame connection part 321 at the other end of the connecting member 32 can pass through the slot on the frame connecting plate 200 and cooperate with the nut to realize that the integrated valve 10 is fixed to the frame.

[0114] In some embodiments of the present disclosure, as shown in Figures 1 and 3, the vibration-damping sleeve 31 can be a columnar structure, and the vibration-damping sleeve 31 is interference fit with the mounting hole 17. The mounting hole 17 can squeeze the vibration-damping sleeve 31 to improve the tightness of the contact between the mounting hole 17 and the vibration-damping sleeve 31, thereby improving the vibration-damping effect of the vibration-damping sleeve 31 on the valve block 1.

[0115] In some embodiments of the present disclosure, as shown in Figures 1 and 3, a plurality of spaced-apart protrusions are provided on the outer circumferential surface of the vibration-damping sleeve 31. The protrusions can extend along the axial direction of the vibration-damping sleeve. The protrusions can adjust the damping of the vibration-damping sleeve 31 and increase the friction force at the connection between the vibration-damping sleeve 31 and the mounting hole 17, thereby helping to improve the vibration-damping effect of the vibration-damping sleeve 31 and prevent the vibration-damping sleeve 31 from moving in the mounting hole 17.

[0116] In some embodiments of the present disclosure, as shown in Figures 1 and 3, a plurality of protrusions are evenly spaced along the circumferential direction of the vibration-damping sleeve 31. When the frame of the vehicle 1000 vibrates, the evenly spaced protrusions are more likely to deform and can absorb vibration more quickly, thereby improving the damping characteristics of the vibration-damping sleeve 31 and enhancing the vibration-damping effect of the vibration-damping sleeve 31.

[0117] In some embodiments of the present disclosure, as shown in Figures 1 and 3, a frame connection assembly 3 is mainly composed of a vibration-damping sleeve 31 and a connector 32. One end of the frame connection assembly 3 is connected to the mounting hole 17, and the other end of the frame connection assembly 3 is provided with a frame connection portion 321. The valve block 1 can be fixedly connected to the frame of the vehicle 1000 through the frame connection assembly 3, so that the integrated valve 10 can be fixed on the frame. The integrated valve 10 is small in size, simple and compact in structure, has little impact on surrounding components, and is easy to disassemble and maintain.

[0118] In some embodiments of the present disclosure, there are multiple frame connection assemblies 3, for example, three, and the valve block 1 is provided with mounting holes 17 corresponding to the number of frame connection assemblies 3. The mounting holes 17 can be provided on at least two opposite sides of the valve block 1, and a frame connection plate 200 suitable for cooperating with the frame connection part 321 can be fixed on the longitudinal beam of the frame.

[0119] According to the embodiment of the present disclosure, the integrated valve 10 can integrate the valve block 1 and the control valve assembly 2. Its integration is relatively high, and a relatively small number of solenoid valves 21 can be used to control the lifting and lowering of each shock absorber 30 of the vehicle, thereby realizing the function of adjusting the vehicle's suspension posture. The integrated valve 10 integrates the pressure control function of each shock absorber 30 to reduce the number of parts and the difficulty of layout of the integrated valve 10. The integrated valve 10 has a high degree of integration and occupies a small space, which is conducive to the miniaturization and integration of the integrated valve 10 and improves the reliability of the suspension posture control. At the same time, the pipeline interface of the integrated valve 10 and the connection method with the vehicle body are both universal designs, which can realize the platformization and universalization of the integrated valve 10 to match different vehicle models and reduce the design and development cost of the integrated valve 10.

[0120] 4 , a suspension system 100 according to another embodiment of the present disclosure includes: an integrated valve 10, a plurality of shock absorbers 30 and a pump assembly 2, wherein: the integrated valve 10 is the integrated valve 10 for the suspension system 100 of the above embodiment, the plurality of shock absorbers 30 are connected one-to-one with the plurality of branch flow paths 12, and the pump assembly 20 is connected with the main flow path 11.

[0121] In some embodiments of the present disclosure, the suspension system 100 further includes a controller, which is configured to control the plurality of first solenoid valves 21 , so that the suspension system 100 can adjust the height of each shock absorber 30 .

[0122] In some embodiments of the present disclosure, the suspension system 100 includes: an integrated valve 10, multiple shock absorbers 30, a pump assembly 2 and a controller. The suspension system 100 has a high degree of integration, occupies less space in the entire vehicle, and is easy to arrange.

[0123] According to the suspension system 100 of the embodiment of the present disclosure, its valve block 1 has a main flow path 11 and multiple branch flow paths 12, each branch flow path 12 is provided with a first solenoid valve 21, and each branch flow path 12 is correspondingly connected to a shock absorber 30. The controller can control whether each shock absorber 30 is connected to the main flow path 11 by adjusting the opening and closing of the first solenoid valve 21 on the branch flow path 12, so as to achieve control of the posture of the suspension system 100. The integrated valve 10 has a high degree of integration and occupies a small space, which is conducive to the miniaturization and integration of the integrated valve 10, and further helps to improve the space utilization rate of the whole vehicle and reduce the weight of the whole vehicle.

[0124] As shown in Figure 4, the pump assembly 20 includes an oil pump 201 and a liquid storage tank 202. The oil pump 201 pumps the oil in the liquid storage tank 202 into the main flow path 11. By controlling the opening and closing of the first solenoid valve 21 on each branch flow path 12, the extension and shortening of the shock absorber 30 corresponding to the branch flow path 12 can be controlled accordingly.

[0125] As shown in Figure 4, the pump assembly 20 also includes a one-way valve 203 and a return valve 204. The one-way valve 203 can be connected between the oil pump 201 and the main flow path 11. The conduction direction of the one-way valve 203 is from the oil pump 201 to the main flow path 11. The return valve 204 can be connected in parallel with the one-way valve 203. The oil in the main flow path 11 can flow back to the liquid storage tank 202 through the return valve 204.

[0126] 4 , the pump assembly 20 further includes a pump attenuator 205 , which is connected between the oil pump 201 and the one-way valve 203 . The pump attenuator 205 can reduce the impact of oil pressure fluctuations on the oil pump 201 , thereby increasing the service life of the oil pump 201 .

[0127] It should be noted that the shock absorber 30 may include an outer shell, one end of the outer shell of the shock absorber 30 is connected to the wheel axle, and the other end of the outer shell of the shock absorber 30 is connected to the vehicle frame. The branch flow path 12 corresponding to the shock absorber 30 can be a single-channel structure or a double-channel structure. When the branch flow path 12 corresponding to the shock absorber 30 is a single-channel structure, the branch flow path 12 can be connected to the upper chamber or the lower chamber of the working chamber of the shock absorber 30. When the branch flow path 12 corresponding to the shock absorber 30 is a double-channel structure, the two channels of the branch flow path 12 can be respectively connected to the upper chamber and the lower chamber of the working chamber of the shock absorber 30.

[0128] In some embodiments of the present disclosure, as shown in FIG4 , the suspension system 100 further includes an accumulator 40. The accumulator 40 is connected to the main flow path 11 via the accumulator flow path 14 within the valve block 1. The pump assembly 20 can pump oil into the accumulator 40 through the main flow path 11 and the accumulator flow path 14 to store energy in the accumulator 40. When the shock absorber 30 needs to be extended, the pump assembly 20 and the accumulator 40 can simultaneously deliver oil to the main flow path 11. The accumulator 40 can reduce the power of the pump assembly 20, reduce the operating noise of the pump assembly 20, and increase the service life of the pump assembly 20. Furthermore, when a large number of shock absorbers 30 need to be raised, the load on the main flow path 11 requires a large flow rate, and the accumulator 40 can release oil to supplement the flow rate of the pump assembly 20.

[0129] In some embodiments of the present disclosure, the plurality of shock absorbers 30 include four shock absorbers, the plurality of branch flow paths 12 include four branch flow paths, and the controller controls the first solenoid valve 21 to enable the shock absorber 30 to adjust the vehicle body height.

[0130] 4 , the four shock absorbers 30 are: FR shock absorber 30a, FL shock absorber 30b, RR shock absorber 30c, RL shock absorber 30d, and the four branch flow paths 12 are: FR branch flow path 12a, FL branch flow path 12b, RR branch flow path 12c, RL branch flow path 12d. The FR branch flow path 12a connects the main flow path 11 and the FR shock absorber 30a, the FL branch flow path 12b connects the main flow path 11 and the FL shock absorber 30b, the RR branch flow path 12c connects the main flow path 11 and the RR shock absorber 30c, and the RL branch flow path 12d connects the main flow path 11 and the RL shock absorber 30d. The four branch flow paths are connected. Four first solenoid valves 21 should be provided, and the four first solenoid valves 21 are divided into: FR solenoid valve 21a, FL solenoid valve 21b, RR solenoid valve 21c, and RL solenoid valve 21d. The FR solenoid valve 21a is provided in the FR branch flow path 12a and is used to control the flow area of ​​the FR branch flow path 12a, the FL solenoid valve 21b is provided in the FL branch flow path 12b and is used to control the flow area of ​​the FL branch flow path 12b, the RR solenoid valve 21c is provided in the RR branch flow path 12c and is used to control the flow area of ​​the FR branch flow path 12a, and the RL solenoid valve 21d is provided in the RL branch flow path 12d and is used to control the flow area of ​​the FR branch flow path 12a.

[0131] It should be noted that the controller can adjust the posture of one or more of the FR shock absorber 30a, FL shock absorber 30b, RR shock absorber 30c, and RL shock absorber 30d to improve the adjustment efficiency of the suspension system 100. That is to say, when the controller needs to control the posture of any one or more shock absorbers 30, it can control the opening of the first solenoid valve 21 on the corresponding branch flow path 12 to connect the shock absorber 30 whose posture needs to be adjusted to the main flow path 11.

[0132] 15 , a vehicle 1000 according to yet another embodiment of the present disclosure includes the integrated valve 10 for the suspension system 100 or the suspension system 100 according to the above embodiment.

[0133] According to the vehicle 1000 of the embodiment of the present disclosure, its valve block 1 has a main flow path 11 and multiple branch flow paths 12, each branch flow path 12 is provided with a first solenoid valve 21, and each branch flow path 12 is correspondingly connected to a shock absorber 30. The controller can control whether each shock absorber 30 is connected to the main flow path 11 by adjusting the opening and closing of the first solenoid valve 21 on the branch flow path 12, so as to achieve control of the posture of the suspension system 100. The integrated valve 10 has a high degree of integration and occupies a small space, which is conducive to the miniaturization and integration of the integrated valve 10, and further conducive to improving the space utilization rate of the entire vehicle and reducing the weight of the entire vehicle.

[0134] In some embodiments of the present disclosure, as shown in Figures 1, 3 and 14, a frame connecting plate 200 is fixed to the frame of the vehicle 1000, and the frame connecting plate 200 can be welded and fixed to the frame. The integrated valve 10 is detachably connected to the frame connecting plate 200 to facilitate the installation and maintenance of the integrated valve 10. The integrated valve 10 can be connected to the frame connecting plate 200 through multiple frame connecting components 3, wherein the vibration-damping sleeve 31 can be stopped between the valve block 1 and the frame connecting plate 200, one end of the connecting member 32 is threadedly engaged with the vibration-damping sleeve 31, and the frame connecting portion 321 at the other end of the connecting member 32 can pass through the slot on the frame connecting plate 200 and cooperate with the nut to fix the integrated valve 10 on the frame.

[0135] As shown in Figure 14, the frame connecting plate 200 includes a first plate body, a second plate body and a third plate body. The second plate body and the third plate body are connected to the two ends of the first plate body, and the second plate body and the third plate body are arranged opposite to each other. The second plate body and the third plate body can be provided with a slot suitable for cooperating with the connecting member 32. The frame connecting plate 200 can be a "U"-shaped bracket, and the frame connecting plate 200 is formed with a mounting groove suitable for accommodating the valve block 1.

[0136] In some embodiments of the present disclosure, the integrated valve 10 is arranged near the middle position of the four wheels so that the oil path length between the integrated valve 10 and the shock absorber 30 on each wheel is basically the same, thereby ensuring that the response speed of each shock absorber 30 is basically the same when adjusting the posture of the suspension system 100, thereby improving the stability and reliability of the vehicle.

[0137] Referring to Figures 1 to 14, a valve block 1 for a suspension system according to another embodiment of the present disclosure is provided with a main flow path 11 and multiple branch flow paths 12 in the valve block 1, the first ends of the multiple branch flow paths 12 are connected to the first end of the main flow path 11, the second end of the main flow path 11 is suitable for connection to the pump assembly 20, and the second end of the branch flow path 12 is suitable for connection to the shock absorber 30.

[0138] According to the valve block 1 for the suspension system 100 according to the embodiment of the present disclosure, the valve block 1 has a main flow path 11 and multiple branch flow paths 12, each branch flow path 12 is connected to a corresponding shock absorber 30, and the pump assembly 20 of the suspension system 100 can adjust the expansion and contraction of the shock absorber 30 through the valve block 1 to achieve control of the posture of the suspension system 100. The valve block 1 has a high degree of integration and occupies a small space, which is conducive to the miniaturization and integration of the valve block 1, and further helps to improve the space utilization rate of the entire vehicle and reduce the weight of the entire vehicle.

[0139] In some embodiments of the present disclosure, as shown in FIG4 , the valve block 1 is further provided with at least one connecting flow path 13 , the two ends of the connecting flow path 13 being respectively connected to two branch flow paths 12 , and the connecting flow path 13 can connect the two branch flow paths 12 connected thereto, so that the shock absorbers 30 corresponding to the two branch flow paths 12 can quickly establish pressure balance, thereby keeping the posture of the entire vehicle balanced and maintaining the stability of the entire vehicle.

[0140] In some embodiments of the present disclosure, as shown in Figures 1 to 9, each branch flow path 12 has a first flow path section 121 and a second flow path section 122, one end of the first flow path section 121 is constructed as the second end of the branch flow path 12, the other end of the first flow path section 121 is connected to one end of the second flow path section 122, and the other end of the second flow path section 122 is constructed as the first end of the branch flow path 12, the first flow path sections 121 of the two branch flow paths 12 are connected by a connecting flow path 13, the axis of the first flow path section 121, the axis of the second flow path section 122 and the axis of the main flow path 11 are arranged perpendicular to each other, and the projections of the first flow path section 121 and the main flow path 11 on a plane perpendicular to the axis of the main flow path 11 do not overlap, thereby facilitating the processing and manufacturing of the valve block 1, making full use of the space inside the valve block 1, and improving the integration of the valve block 1.

[0141] In some embodiments of the present disclosure, referring to Figures 1 to 9, the connecting flow path 13 includes: a third flow path section 131, a fourth flow path section 132 and a fifth flow path section 133, the two ends of the fourth flow path section 132 are respectively connected to the first end of the third flow path section 131 and the first end of the fifth flow path section 133, the second end of the third flow path section 131 and the second end of the fifth flow path section 133 are respectively connected to the two branch flow paths 12, the second end of the third flow path section 131 and the second end of the fifth flow path section 133 are constructed to connect the two ends of the flow path 13, wherein the second end of the third flow path section 131 is coaxially connected to the first flow path section 121 connected thereto, which can be understood It is understood that in the first direction, the third flow path section 131 and the first flow path section 121 are both located on the same side of the main flow path 11, the third flow path section 131 and the first flow path section 121 of the corresponding branch flow path 12 can be located at the same height, and the third flow path section 131 and the first flow path section 121 of the corresponding branch flow path 12 can both extend along the third direction. That is to say, when manufacturing the valve block 1, the drilling tool can cut down along the third direction to simultaneously process the third flow path section 131 and the first flow path section 121 of the corresponding branch flow path 12, which is conducive to reducing the processing difficulty of the valve block 1, simplifying the drilling process, and improving the processing efficiency and manufacturability of the valve block 1.

[0142] In some embodiments of the present disclosure, as shown in Figures 1 to 9, the axis of the fourth flow path section 132 is parallel to the axis of the second flow path section 122, and the opening of the fourth flow path section 132 at one end away from the third flow path section 131 is provided on the first side surface of the valve block 1, and the opening of the second flow path section 122 at one end away from the first flow path section 121 is provided on the first side surface of the valve block 1. Thus, the first solenoid valve 21 can be inserted into the second flow path section 122 from the opening of the second flow path section 122 at one end away from the first flow path section 121, and the second solenoid valve 22 can be inserted into the fourth flow path section 132 from the opening of the fourth flow path section 132 at one end away from the third flow path section 131. The openings for installing the first solenoid valve 21 and the second solenoid valve 22 are both provided on the same side surface of the valve block 1, which is conducive to the installation of the first solenoid valve 21 and the second solenoid valve 22.

[0143] In some embodiments of the present disclosure, as shown in Figures 1 to 9, the fifth flow path section 133 includes: a first sub-flow path section 1331, a second sub-flow path section 1332 and a third sub-flow path section 1333, the two ends of the second sub-flow path section 1332 are respectively connected to the first end of the first sub-flow path section 1331 and the first end of the third sub-flow path section 1333, the second end of the first sub-flow path section 1331 is connected to the fourth flow path section 132, the axis of the first sub-flow path section 1331 is parallel to the axis of the main flow path 11, the axis of the second sub-flow path section 1332 is parallel to the axis of the second flow path section 122, and the third sub-flow path section 1333 is coaxially connected to the first flow path section 121 of the branch flow path 12 connected thereto, so as to evenly distribute the flow paths in the valve block 1 and facilitate the processing and manufacturing of each flow path by distributing the positions and relative relationships of the various flow paths in the valve block 1.

[0144] In some embodiments of the present disclosure, as shown in Figures 1-9, the valve block 1 further includes an energy storage flow path 14 connected to the main flow path 11. The energy storage flow path 14 is adapted to be connected to an accumulator 40. The energy storage flow path 14 is adapted to be connected to the accumulator 40. A third solenoid valve 23 is provided on the energy storage flow path 14. When the accumulator 40 is charging and releasing energy, the pump assembly 20 can pump oil into the accumulator 40 through the main flow path 11 and the energy storage flow path 14 to charge the accumulator 40. When the shock absorber 30 needs to be extended, the pump assembly 20 and the accumulator 40 can simultaneously deliver oil to the main flow path 11. The accumulator 40 can reduce the power of the pump assembly 20, reduce the operating noise of the pump assembly 20, and extend the service life of the pump assembly 20. Furthermore, when a large number of shock absorbers 30 need to be raised, the load of the main flow path 11 requires a large flow rate, and the accumulator 40 can release oil to supplement the flow rate of the pump assembly 20.

[0145] In some embodiments of the present disclosure, referring to Figures 1 to 9, the energy storage flow path 14 includes: a sixth flow path section 141, a seventh flow path section 142 and an eighth flow path section 143, the two ends of the seventh flow path section 142 are connected to the sixth flow path section 141 and the eighth flow path section 143 respectively, the sixth flow path section 141 is connected to the main flow path 11, the axis of the sixth flow path section 141 and the axis of the eighth flow path section 143 are perpendicular to the axis of the main flow path 11, and the axis of the seventh flow path section 142 is perpendicular to the axis of the sixth flow path section 141 and the axis of the main flow path 11, wherein the opening of the end of the seventh flow path section 142 away from the eighth flow path section 143 is provided on the first side surface of the valve block 1, that is, the axis of the sixth flow path section 141 is perpendicular to the axis of the main flow path 11, the axis of the eighth flow path section 143 is perpendicular to the axis of the main flow path 11, and the axis of the seventh flow path section 142 and the axis of the sixth flow path section 141 are perpendicular to the axis of the main flow path 11. The axes of the segments 141 and the axes of the main flow path 11 are perpendicular to each other. In other words, the seventh flow path segment 142 extends along the first direction, the sixth flow path segment 141 and the eighth flow path segment 143 both extend along the third direction, the sixth flow path segment 141 and the eighth flow path segment 143 can be staggered in the first direction, and the third solenoid valve 23 on the seventh flow path segment 142 can be used to control the on and off of the seventh flow path segment 142. The sixth flow path segment 141, the seventh flow path segment 142 and the eighth flow path segment 143 of the accumulator flow path 14 can be solid plates formed by drilling tools. The seventh flow path segment 142 is formed with a third solenoid valve installation port suitable for installing the third solenoid valve 23 on the first side surface of the valve block 1. The eighth flow path segment 143 is formed with an accumulator connection port 16f suitable for connecting to the accumulator 40 on the rear side surface of the valve block 1. The accumulator connection port 16f can be a threaded hole to facilitate connection of a hydraulic pipeline.

[0146] In some embodiments of the present disclosure, as shown in Figures 1 to 9, the valve block 1 has an inlet flow path 15, which is connected to the main flow path 11 and is coaxially connected to the sixth flow path section 141. The inlet flow path 15 can extend along the third direction, and the inlet flow path 15 is opposite to and connected to the sixth flow path section 141. The inlet flow path 15 can be a solid plate formed by a drilling tool. The inlet flow path 15 is formed with a pump assembly connection port 16e suitable for connecting to the pump assembly 20 on the front side surface of the valve block 1. The pump assembly connection port 16e can be a threaded hole to facilitate the connection of a hydraulic pipeline. When drilling the inlet flow path 15 and the sixth flow path section 141, the drilling tool can cut from the same position to improve the integrity and integration of the valve block 1.

[0147] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0148] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. An integrated valve for a suspension system, wherein: include: A valve block (1), wherein a main flow path (11) and a plurality of branch flow paths (12) are provided in the valve block (1), the first ends of the plurality of branch flow paths (12) are connected to the first end of the main flow path (11), the second end of the main flow path (11) is suitable for being connected to a pump assembly (20), and the second end of the branch flow path (12) is suitable for being connected to a shock absorber (30); and A control valve assembly (2), the control valve assembly (2) comprising a plurality of first solenoid valves (21), at least one of the first solenoid valves (21) being arranged on the branch flow path (12).

2. The integrated valve for a suspension system according to claim 1, wherein: The control valve assembly (2) further comprises: At least one second solenoid valve (22), the valve block (1) is further provided with at least one connecting flow path (13), the two ends of the connecting flow path (13) are respectively connected to the two branch flow paths (12), and the second solenoid valve (22) is provided on the connecting flow path (13).

3. The integrated valve for a suspension system according to claim 2, wherein: Each of the branch flow paths (12) comprises a first flow path section (121) and a second flow path section (122), one end of the first flow path section (121) being configured as the second end of the branch flow path (12), the other end of the first flow path section (121) being connected to one end of the second flow path section (122), and the other end of the second flow path section (122) being configured as the first end of the branch flow path (12); The second flow path section (122) is provided with the first solenoid valve (21); The first flow path sections (121) of the two branch flow paths (12) are connected via the communication flow path (13).

4. The integrated valve for a suspension system according to claim 3, wherein: The axis of the first flow path section (121), the axis of the second flow path section (122) and the axis of the main flow path (11) are arranged perpendicular to each other, and the projections of the first flow path section (121) and the main flow path (11) on a plane perpendicular to the axis of the main flow path (11) do not overlap.

5. The integrated valve for a suspension system according to claim 3 or 4, wherein: The connecting flow path (13) comprises: a third flow path section (131), a fourth flow path section (132) and a fifth flow path section (133); two ends of the fourth flow path section (132) are respectively connected to a first end of the third flow path section (131) and a first end of the fifth flow path section (133); a second end of the third flow path section (131) and a second end of the fifth flow path section (133) are respectively connected to two branch flow paths (12); a second end of the third flow path section (131) and a second end of the fifth flow path section (133) are configured as two ends of the connecting flow path (13); and the fourth flow path section (132) is provided with the second solenoid valve (22); The second end of the third flow path section (131) is coaxially connected to the first flow path section (121) connected thereto.

6. The integrated valve for a suspension system according to claim 5, wherein: The axis of the fourth flow path section (132) is parallel to the axis of the second flow path section (122), and an opening of an end of the fourth flow path section (132) away from the third flow path section (131) is arranged on a first side surface of the valve block (1), and an opening of an end of the second flow path section (122) away from the first flow path section (121) is arranged on a first side surface of the valve block (1).

7. The integrated valve for a suspension system according to claim 5 or 6, wherein: The fifth flow path section (133) comprises: a first sub-flow path section (1331), a second sub-flow path section (1332) and a third sub-flow path section (1333), the two ends of the second sub-flow path section (1332) are respectively connected to the first end of the first sub-flow path section (1331) and the first end of the third sub-flow path section (1333), the second end of the first sub-flow path section (1331) is connected to the fourth flow path section (132), the axis of the first sub-flow path section (1331) is parallel to the axis of the main flow path (11), the axis of the second sub-flow path section (1332) is parallel to the axis of the second flow path section (122), and the third sub-flow path section (1333) is coaxially connected to the first flow path section (121) of the branch flow path (12) connected thereto.

8. The integrated valve for a suspension system according to any one of claims 1 to 7, wherein: The control valve assembly (2) further comprises a third solenoid valve (23), and the valve block (1) is further provided with an energy storage flow path (14) connected to the main flow path (11), the energy storage flow path (14) being suitable for being connected to an accumulator (40), and the third solenoid valve (23) being provided on the energy storage flow path (14).

9. The integrated valve for a suspension system according to claim 8, wherein: The energy storage flow path (14) comprises: a sixth flow path section (141), a seventh flow path section (142) and an eighth flow path section (143); two ends of the seventh flow path section (142) are respectively connected to the sixth flow path section (141) and the eighth flow path section (143); the sixth flow path section (141) is connected to the main flow path (11); the seventh flow path section (142) is provided with the third solenoid valve (23); the axis of the sixth flow path section (141) and the axis of the eighth flow path section (143) are perpendicular to the axis of the main flow path (11); and the axis of the seventh flow path section (142) is perpendicular to the axis of the sixth flow path section (141) and the axis of the main flow path (11); An opening of one end of the seventh flow path section (142) away from the eighth flow path section (143) is arranged on a first side surface of the valve block (1).

10. The integrated valve for a suspension system according to claim 9, wherein: The valve block (1) has an inlet flow path (15), the inlet flow path (15) is connected to the main flow path (11), and the inlet flow path (15) is coaxially connected to the sixth flow path section (141).

11. The integrated valve for a suspension system according to any one of claims 1 to 10, wherein: The control valve assembly (2) includes a cover plate (24), and the cover plate (24) and the first side surface of the valve block (1) define a receiving cavity. Each of the first solenoid valves (21) includes a first valve body (211) and a first coil (212). The first valve body (211) is partially arranged in the branch flow path (12), and the first coil (212) is arranged in the first valve body (211), and each of the first coils (212) is accommodated in the receiving cavity.

12. The integrated valve for a suspension system according to any one of claims 1 to 11, wherein: It also comprises a connecting piece (32), the valve block (1) is provided with a mounting hole (17), the connecting piece (32) is arranged in the mounting hole (17), and a portion of the connecting piece (32) protrudes from the valve block (1).

13. The integrated valve for a suspension system according to claim 12, wherein: It also includes a vibration-damping sleeve (31), which is sleeved on the connecting piece (32) and installed in the installation hole (17).

14. The integrated valve for a suspension system according to claim 13, wherein: The vibration-damping sleeve (31) is interference-fitted with the mounting hole (17).

15. The integrated valve for a suspension system according to claim 13 or 14, wherein: The outer peripheral surface of the vibration-damping sleeve (31) is provided with a plurality of protrusions arranged at intervals.

16. The integrated valve for a suspension system according to claim 15, wherein: The plurality of protrusions are evenly spaced along the circumferential direction of the vibration-damping sleeve (31).

17. A suspension system, wherein: include: An integrated valve, wherein the integrated valve is an integrated valve for a suspension system according to any one of claims 1 to 16; a plurality of vibration dampers (30), wherein the plurality of vibration dampers (30) are connected to the plurality of branch flow paths (12) in a one-to-one correspondence; and A pump assembly (20), wherein the pump assembly (20) is connected to the main flow path (11).

18. The suspension system of claim 17, wherein: It also includes an accumulator (40), which is connected to the main flow path (11) through an energy storage flow path (14) in the valve block (1).

19. A suspension system according to claim 17 or 18, wherein: The plurality of shock absorbers (30) include four shock absorbers (30), the plurality of branch flow paths (12) include four branch flow paths (12), and the controller controls the first solenoid valve (21) so that the shock absorber (30) adjusts the vehicle body height.

20. A vehicle, wherein: Comprising an integrated valve for a suspension system according to any one of claims 1-16 or a suspension system according to any one of claims 17-19.

21. The vehicle of claim 20, wherein: A frame connecting plate (200) is fixedly arranged on the frame of the vehicle, and the integrated valve is detachably connected to the frame connecting plate (200).

22. A vehicle according to claim 20 or 21, wherein: The integrated valve is disposed adjacent to the center position of the four wheels.

23. A valve block for a suspension system, wherein: The valve block (1) is provided with a main flow path (11) and a plurality of branch flow paths (12); the first ends of the plurality of branch flow paths (12) are connected to the first end of the main flow path (11); the second end of the main flow path (11) is suitable for being connected to a pump assembly (20); and the second end of the branch flow path (12) is suitable for being connected to a shock absorber (30).

24. The valve block for a suspension system according to claim 23, wherein: The valve block (1) is further provided with at least one connecting flow path (13), and two ends of the connecting flow path (13) are respectively connected to the two branch flow paths (12).

25. The valve block for a suspension system according to claim 24, wherein: Each of the branch flow paths (12) comprises a first flow path section (121) and a second flow path section (122), one end of the first flow path section (121) being configured as the second end of the branch flow path (12), the other end of the first flow path section (121) being connected to one end of the second flow path section (122), and the other end of the second flow path section (122) being configured as the first end of the branch flow path (12); The first flow path sections (121) of the two branch flow paths (12) are connected via the connecting flow path (13); The axis of the first flow path section (121), the axis of the second flow path section (122) and the axis of the main flow path (11) are arranged perpendicular to each other, and the projections of the first flow path section (121) and the main flow path (11) on a plane perpendicular to the axis of the main flow path (11) do not overlap.

26. The valve block for a suspension system according to claim 25, wherein: The connecting flow path (13) comprises: a third flow path section (131), a fourth flow path section (132) and a fifth flow path section (133); two ends of the fourth flow path section (132) are respectively connected to a first end of the third flow path section (131) and a first end of the fifth flow path section (133); a second end of the third flow path section (131) and a second end of the fifth flow path section (133) are respectively connected to two branch flow paths (12); and a second end of the third flow path section (131) and a second end of the fifth flow path section (133) are configured as two ends of the connecting flow path (13); The second end of the third flow path section (131) is coaxially connected to the first flow path section (121) connected thereto.

27. The valve block for a suspension system according to claim 26, wherein: The axis of the fourth flow path section (132) is parallel to the axis of the second flow path section (122), and an opening of an end of the fourth flow path section (132) away from the third flow path section (131) is arranged on a first side surface of the valve block (1), and an opening of an end of the second flow path section (122) away from the first flow path section (121) is arranged on a first side surface of the valve block (1).

28. The valve block for a suspension system according to claim 26 or 27, wherein: The fifth flow path section (133) comprises: a first sub-flow path section (1331), a second sub-flow path section (1332) and a third sub-flow path section (1333), the two ends of the second sub-flow path section (1332) are respectively connected to the first end of the first sub-flow path section (1331) and the first end of the third sub-flow path section (1333), the second end of the first sub-flow path section (1331) is connected to the fourth flow path section (132), the axis of the first sub-flow path section (1331) is parallel to the axis of the main flow path (11), the axis of the second sub-flow path section (1332) is parallel to the axis of the second flow path section (122), and the third sub-flow path section (1333) is coaxially connected to the first flow path section (121) of the branch flow path (12) connected thereto.

29. The valve block for a suspension system according to any one of claims 23 to 28, wherein: The valve block (1) is also provided with an energy storage flow path (14) connected to the main flow path (11), and the energy storage flow path (14) is suitable for being connected to an accumulator (40).

30. The valve block for a suspension system according to claim 29, wherein: The energy storage flow path (14) comprises: a sixth flow path section (141), a seventh flow path section (142) and an eighth flow path section (143); two ends of the seventh flow path section (142) are respectively connected to the sixth flow path section (141) and the eighth flow path section (143); the sixth flow path section (141) is connected to the main flow path (11); the axis of the sixth flow path section (141) and the axis of the eighth flow path section (143) are perpendicular to the axis of the main flow path (11); and the axis of the seventh flow path section (142) is perpendicular to the axis of the sixth flow path section (141) and the axis of the main flow path (11); An opening of one end of the seventh flow path section (142) away from the eighth flow path section (143) is arranged on a first side surface of the valve block (1).

31. The valve block for a suspension system according to claim 30, wherein: The valve block (1) has an inlet flow path (15), the inlet flow path (15) is connected to the main flow path (11), and the inlet flow path (15) is coaxially connected to the sixth flow path section (141).

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