A pre-oil filling assembly method of a suspension system, a suspension system and a vehicle

Abstract

The embodiment of the application provides a pre-oil filling assembly method of a suspension system, the suspension system and a vehicle. The pre-oil filling assembly method of the suspension system comprises the following steps: connecting a connecting pipe to a hydraulic pump, and the connecting pipe being communicated with the hydraulic pump; pre-filling the connecting pipe and the hydraulic pump with oil; sealing the connecting pipe; connecting the connecting pipe to a shock absorber; and unsealing the connecting pipe to communicate the oil passage of the shock absorber, the connecting pipe and the hydraulic pump. Before the whole vehicle is assembled, the connecting pipe and the hydraulic pump are pre-filled with oil, and then the connecting pipe is sealed. Then, when the whole vehicle is assembled, the connecting pipe is connected to the shock absorber, the connecting pipe is opened, and the oil passage of the shock absorber, the connecting pipe and the hydraulic pump is communicated. The suspension system does not need to be vacuumized on the whole vehicle assembly line, so that the gas in the hydraulic pump can be completely removed, the influence of the production rhythm of the vehicle is eliminated, and the cleaning problem is solved.

Description

Technical Field

[0001] This application belongs to the field of vehicle technology, specifically relating to a pre-filling oil assembly method for a suspension system, a suspension system, and a vehicle. Background Technology

[0002] A vehicle's suspension system typically includes shock absorbers and a hydraulic pump. During the vehicle's production process, the hydraulic pump needs to be connected to the shock absorbers to ensure that the suspension system as a whole has stable pressure.

[0003] In existing technologies, the oil pipe is usually connected to the shock absorber first, then a vacuum pump is used to evacuate the suspension system, followed by the injection of hydraulic oil into the hydraulic pump, and then the oil pipe is connected to the hydraulic pump to realize the connection between the shock absorber and the hydraulic pump.

[0004] However, during the vacuuming process, it is difficult to ensure a 100% vacuum in the suspension system. Gas may remain inside the hydraulic pump and cannot be completely purged. Furthermore, vacuuming and hydraulic oil injection typically take a considerable amount of time, making it difficult to meet the production cycle of the entire vehicle. Additionally, residual oil may remain inside the hydraulic pump from the production process, or oil leakage may occur during vacuum oil injection, causing cleaning issues. Summary of the Invention

[0005] In view of the above problems, the present invention is proposed to provide a method for pre-filling oil in a suspension system, a suspension system, and a vehicle that overcomes or at least partially solves the above problems.

[0006] To solve the above-mentioned technical problems, this application is implemented as follows:

[0007] In a first aspect, embodiments of this application propose a pre-filling oil assembly method for a suspension system, the method comprising:

[0008] The connecting pipe is connected to the hydraulic pump, and the connecting pipe is in communication with the hydraulic pump;

[0009] Pre-inject oil into the connecting pipe and the hydraulic pump;

[0010] The connecting pipe is sealed;

[0011] Connect the connecting pipe to the vibration damper;

[0012] Release the seal on the connecting pipe to connect the oil passage of the shock absorber, the connecting pipe, and the hydraulic pump.

[0013] Optionally, the connecting pipe includes a first branch pipe and a second branch pipe, the first branch pipe and the second branch pipe being respectively connected to the hydraulic pump, and the step of pre-injecting oil into the connecting pipe and the hydraulic pump includes:

[0014] The hydraulic pump is started, and the hydraulic pump drives the oil to be injected into the hydraulic pump through the first branch pipe and output along the second branch pipe, so as to realize the injection of oil into the connecting pipe and the hydraulic pump.

[0015] Optionally, a valve is provided at the end of the connecting pipe away from the hydraulic pump, and the step of closing the connecting pipe includes:

[0016] Close the valve at the end of the connecting pipe furthest from the hydraulic pump.

[0017] Optionally, the valve includes a body having a connecting pipe port and an interface, and a valve core slidably connected within the body. The connecting pipe port has a sealing surface on the side near the interface. The step of closing the valve at the end of the connecting pipe away from the hydraulic pump includes:

[0018] Rotate the valve core until it abuts against the sealing surface to close the connecting pipe port and disconnect the connection between the connecting pipe port and the interface.

[0019] Optionally, the step of releasing the seal on the connecting pipe to connect the oil passage of the shock absorber, the connecting pipe, and the hydraulic pump includes:

[0020] Open the valve at the end of the connecting pipe away from the hydraulic pump.

[0021] Optionally, the valve includes a body having a connecting pipe port and an interface, and a valve core slidably connected within the body. A baffle is provided on the side of the connecting pipe port away from the interface. The step of opening the valve at the end of the connecting pipe away from the hydraulic pump includes:

[0022] Rotate the valve core until it abuts against the partition, and open the connecting pipe port to connect the connecting pipe port with the interface.

[0023] Secondly, this application provides a suspension system and a pre-filled oil assembly method for the suspension system, wherein the suspension system includes a hydraulic pump, a connecting pipe, and a shock absorber.

[0024] The connecting pipes are respectively connected to the hydraulic pump and the shock absorber, wherein, before the connecting pipes are connected to the shock absorber, the connecting pipes and the hydraulic pump are pre-filled with oil.

[0025] Optionally, the suspension system further includes a valve connected to the end of the connecting pipe away from the hydraulic pump, and the shock absorber is connected to the connecting pipe through the valve.

[0026] Optionally, the valve includes a first switching valve and a second switching valve, and the connecting pipe includes a first branch pipe and a second branch pipe respectively connected to the hydraulic pump;

[0027] The first switching valve is connected to the end of the first branch pipe away from the hydraulic pump, the shock absorber is connected to the first branch pipe through the first switching valve, the second switching valve is connected to the end of the second branch pipe away from the hydraulic pump, and the shock absorber is connected to the second branch pipe through the second switching valve.

[0028] Thirdly, embodiments of this application provide a vehicle that includes the aforementioned suspension system.

[0029] In this embodiment, the pre-filling assembly method for the suspension system includes: connecting a connecting pipe to a hydraulic pump, with the connecting pipe communicating with the hydraulic pump; pre-injecting oil into the connecting pipe and the hydraulic pump; sealing the connecting pipe; connecting the connecting pipe to a shock absorber; and releasing the seal on the connecting pipe to connect the oil passages of the shock absorber, the connecting pipe, and the hydraulic pump. This allows for pre-filling of the connecting pipe and the hydraulic pump with oil before vehicle assembly, followed by sealing the connecting pipe for ease of transport and handling. Then, during vehicle assembly, the pre-filled connecting pipe and the hydraulic pump are connected to the shock absorber, and the seal on the connecting pipe is released, connecting the oil passages of the shock absorber, the connecting pipe, and the hydraulic pump, thus assembling the suspension system. This eliminates the need for vacuuming the suspension system on the vehicle assembly line, avoiding the possibility of residual gas inside the hydraulic pump due to the difficulty of achieving a 100% vacuum in the suspension system. It also eliminates the impact on vehicle production rhythm caused by the long time required for vacuuming and oiling on the production line, and avoids the impact of residual oil inside the hydraulic pump by pre-filling the hydraulic pump. It also eliminates the need for oiling operations on the production line and avoids cleaning problems caused by oil leakage during vacuum oiling.

[0030] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0031] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0032] Figure 1 This is a schematic diagram of the process steps of a pre-filling oil assembly method for a suspension system according to an embodiment of this application;

[0033] Figure 2This is one of the structural schematic diagrams of a suspension system described in the embodiments of this application;

[0034] Figure 3 This is a second schematic diagram of the structure of a suspension system described in an embodiment of this application;

[0035] Figure 4 This is a schematic diagram of the structure of a valve in a suspension system according to an embodiment of this application;

[0036] Figure 5 This is one of the cross-sectional structural schematic diagrams of a valve in a suspension system according to an embodiment of this application;

[0037] Figure 6 This is a second cross-sectional structural schematic diagram of a valve in a suspension system as described in an embodiment of this application.

[0038] Reference numerals: 10-Hydraulic pump; 20-Connecting pipe; 30-Shock absorber; 21-First branch pipe; 22-Second branch pipe; 40-Valve; 41-Body; 42-Connecting pipe port; 43-Interface; 44-Valve core; 45-Sealing surface; 46-Blocking component; 47-Sealing ring; 48-First switching valve; 49-Second switching valve; 23-Reservoir; 24-Recovery component. Detailed Implementation

[0039] Embodiments of the present invention will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0040] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0041] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] Reference Figures 1 to 6 This document illustrates a flowchart of a pre-filling oil assembly method for a suspension system according to an embodiment of this application, as well as a related structural diagram of the suspension system. Figure 3 The arrows in the diagram indicate the direction of oil transport, and the method may specifically include:

[0044] Step 101: Connect the connecting pipe 20 to the hydraulic pump 10, and make the connecting pipe 20 connected to the hydraulic pump 10.

[0045] For example, in this embodiment, the connecting pipe 20 can be an oil pipe for transmitting oil and connecting the hydraulic pump 10 and the shock absorber 30. One end of the connecting pipe 20 is connected to the hydraulic pump 10, and the connecting pipe 20 is configured to communicate with the hydraulic pump 10, so as to facilitate oil filling operations on the connecting pipe 20 and the hydraulic pump 10.

[0046] In this embodiment of the application, for example, the connecting pipe 20 may include a first branch pipe 21 and a second branch pipe 22. The first branch pipe 21 and the second branch pipe 22 are respectively connected to the hydraulic pump 10. That is, one end of the first branch pipe 21 is connected to the hydraulic pump 10, and one end of the second branch pipe 22 is connected to the hydraulic pump 10 at a distance from the first branch pipe 21. The first branch pipe 21, the hydraulic pump 10 and the second branch pipe 22 are connected in one step.

[0047] Step 102: Pre-inject oil into the connecting pipe 20 and the hydraulic pump 10.

[0048] In this embodiment, the hydraulic pump 10 has a suction force when started, which can drive oil to be injected into the hydraulic pump 10 through the connecting pipe 20. Therefore, when oil injection is required, the hydraulic pump 10 can be turned on to provide the oil injection driving force. For example, as... Figure 2 and Figure 3 As shown, the connecting pipe 20 may include a first branch pipe 21 and a second branch pipe 22 spaced apart. A liquid storage device 23, such as an oil storage tank or reservoir, can be placed at the end of the first branch pipe 21 away from the hydraulic pump 10 to supply hydraulic oil. One end of the first branch pipe 21 can extend into the liquid storage device 23 to draw in the oil. A recovery device 24, such as a recovery bucket or tank, can be placed at the end of the second branch pipe 22 away from the hydraulic pump 10 to recover excess oil.

[0049] In this embodiment, after starting the hydraulic pump 10, the hydraulic pump 10 can drive the oil stored in the reservoir 23 to be injected into the hydraulic pump 10 through the first branch pipe 21 and output along the second branch pipe 22, so that the gears of the hydraulic pump 10 can be filled with oil. Excess oil can be recovered through a recovery bucket or recovery tank, thus filling the connecting pipe 20 and the hydraulic pump 10 with oil. After filling the hydraulic pump 10 and the connecting pipe 20 with oil, the air in the hydraulic pump 10 and the connecting pipe 20 can be naturally expelled. Even if there is residual oil in the hydraulic pump 10 after leaving the factory due to the production process, it will not affect the assembly of the suspension system.

[0050] Step 103: Seal the connecting pipe 20.

[0051] After pre-filling the connecting pipe 20 and the hydraulic pump 10 with oil, the connecting pipe 20 is sealed to prevent oil leakage or seepage, so as to facilitate the transportation of the hydraulic pump 10 and the connecting pipe 20 to the processing plant or their handling, thus preparing for the assembly of the vehicle's suspension system.

[0052] For example, in this embodiment of the application, a valve 40 may be provided at the end of the connecting pipe 20 away from the hydraulic pump 10. By closing the valve 40, a better sealing effect on the connecting pipe 20 can be achieved, which is more effective and reliable, and is simple and easy to implement.

[0053] In the embodiments of this application, for example, such as Figures 4 to 5As shown, valve 40 includes a body 41 with a connecting port 42 and an interface 43. The connecting port 42 is used to connect to the connecting pipe 20, and the interface 43 is used to connect to the vibration damper 30. Valve 40 also includes a valve core 44 slidably connected within the body 41. A sealing surface 45 is provided on the side of the connecting port 42 near the interface 43, and a baffle 46 is provided on the side of the connecting port 42 away from the interface 43. Valve core 44 can slide between the sealing surface 45 and the baffle 46. When valve core 44 slides to the position abutting against the sealing surface 45, valve core 44 seals the connecting port 42, thereby closing the connecting pipe 20 and disconnecting the connection between the connecting port 42 and the interface 43.

[0054] For example, in this embodiment, the valve core 44 can be threaded into the body 41. By rotating the valve core 44, it can slide vertically between the sealing surface 45 and the spacer 46 within the body 41, thus sealing or unsealing the connecting port 42. For example, the valve core 44 has a connecting cone surface near the interface 43. When the valve core 44 slides to the position abutting the sealing surface 45, the connecting cone surface abuts against the sealing surface 45, causing the valve core 44 to seal the connecting port 42. For example, a sealing ring 47 can be embedded in the circumferential outer wall of the valve core 44 to further improve the sealing effect of the valve core 44 and prevent oil leakage.

[0055] In this embodiment of the application, for example, when the connecting pipe 20 includes a first branch pipe 21 and a second branch pipe 22, the corresponding number of valves 40 can be two, namely a first switching valve 48 and a second switching valve 49. The first switching valve 48 is connected to the end of the first branch pipe 21 away from the hydraulic pump 10, and the second switching valve 49 is connected to the end of the second branch pipe 22 away from the hydraulic pump 10. Thus, closing the valve 40 at the end of the connecting pipe 20 away from the hydraulic pump 10 can specifically include closing the first switching valve 48 and the second switching valve 49 respectively, thereby sealing the first branch pipe 21 and the second branch pipe 22.

[0056] For example, in the embodiments of this application, the first switching valve 48 and the second switching valve 49 may include the body 41 with connecting port 42 and interface 43, valve core 44, sealing surface 45, and partition 46, sealing ring 47 and other structures as described above. In addition, the first switching valve 48 and the second switching valve 49 may also be valves 40 with other structures. The specific structures of the first switching valve 48 and the second switching valve 49 may be the same or different. The embodiments of this application do not limit this.

[0057] Step 104: Connect the connecting pipe 20 to the vibration damper 30.

[0058] In this embodiment of the application, when the suspension system needs to be assembled on the vehicle assembly line, the hydraulic pump 10 and the connecting pipe 20, which are pre-filled with oil, are installed on the shock absorber 30 through the connecting pipe 20.

[0059] For example, in this embodiment, a valve 40 is provided at the end of the connecting pipe 20 away from the hydraulic pump 10. The valve 40 can be connected to the shock absorber 30, thus connecting the connecting pipe 20 and the shock absorber 30. The oil circuit between the shock absorber 30 and the connecting pipe 20 can be opened or closed by opening and closing the valve 40. The valve 40 may be provided with a mounting part and a mounting hole. By sequentially inserting fasteners through the mounting hole and the shock absorber 30, a relatively reliable connection between the valve 40 and the shock absorber 30 can be achieved, and the operation is simple and easy to implement.

[0060] In this embodiment of the application, for example, when valve 40 includes a first switching valve 48 and a second switching valve 49, the first switching valve 48 and the second switching valve 49 can be connected to the shock absorber respectively to realize the connection between the first branch pipe 21, the hydraulic pump 10, the second branch pipe 22 and the shock absorber 30.

[0061] Step 105: Release the seal on the connecting pipe 20 to connect the oil passage of the shock absorber 30, the connecting pipe 20, and the hydraulic pump 10.

[0062] After connecting the connecting pipe 20 to the shock absorber, the seal on the connecting pipe 20 is released, allowing the oil passage between the shock absorber 30, the connecting pipe 20, and the hydraulic pump 10 to be unobstructed, enabling the suspension system to operate normally. For example, in this embodiment, the connecting pipe 20 can be unsealed by opening the valve 40 between the connecting pipe 20 and the shock absorber 30.

[0063] For example, in the embodiment of this application, as mentioned above, a baffle 46 is provided on the side of the connecting port 42 of the valve body 41 away from the interface 43. By rotating the valve core 44, the valve core 44 abuts against the baffle 46, opening the connecting port 42, realizing the connection between the connecting port 42 and the interface 43, thereby completing the opening of the valve 40.

[0064] In this embodiment of the application, for example, the partition 46 can be a partition retaining ring, or a protruding partition plate, partition block, or other structure, to partition and position the valve core 44 in the upward movement, so as to prevent the valve core 44 from rotating too far. In this embodiment of the application, the specific structural type of the partition 46 is not limited.

[0065] For example, in the embodiment of this application, when valve 40 includes a first switching valve 48 and a second switching valve 49, the first switching valve 48 and the second switching valve 49 are respectively connected to the shock absorber 30 at intervals. The shock absorber 30 is filled with hydraulic oil. By opening the first switching valve 48 and the second switching valve 49, the oil passage between the shock absorber 30 and the first branch pipe 21, the hydraulic pump 10 and the second branch pipe 22 can be realized.

[0066] In this embodiment, during suspension system assembly, the connecting pipe 20 is first connected to the hydraulic pump 10, and the connecting pipe 20 is in communication with the hydraulic pump 10. Then, oil is pre-injected into the connecting pipe 20 and the hydraulic pump 10. Next, the connecting pipe 20 is sealed. Then, the connecting pipe 20 is connected to the shock absorber 30. Finally, the seal on the connecting pipe 20 is released, connecting the oil passages of the shock absorber 30, the connecting pipe 20, and the hydraulic pump 10. Before vehicle assembly, the connecting pipe 20 and the hydraulic pump 10 are pre-filled with oil, and after pre-filling, the connecting pipe 20 is sealed to facilitate transportation and handling. Then, during vehicle assembly, the pre-filled connecting pipe 20 and the hydraulic pump 10 are connected to the shock absorber 30, the seal on the connecting pipe 20 is released, and the oil passages of the shock absorber 30, the connecting pipe 20, and the hydraulic pump 10 are connected, thus completing the suspension system assembly. This eliminates the need for vacuuming the suspension system on the vehicle assembly line, avoiding the possibility of residual gas inside the hydraulic pump 10 that cannot be completely purged due to the difficulty in achieving a 100% vacuum in the suspension system. It also eliminates the time-consuming process of vacuuming and oiling on the production line, which would disrupt the vehicle's production cycle. Furthermore, pre-filling the hydraulic pump 10 with oil avoids the impact of residual oil inside the pump and eliminates the need for on-line oiling, preventing potential oil spillage and cleaning issues during vacuum oiling.

[0067] This application also proposes a suspension system that uses the above-described pre-filled oil assembly method for the suspension system. The suspension system includes a hydraulic pump 10, a connecting pipe 20, and a shock absorber 30. The connecting pipe 20 is connected to the hydraulic pump 10 and the shock absorber 30, respectively. Before the connecting pipe 20 is connected to the shock absorber 30, oil is pre-filled in the connecting pipe 20 and the hydraulic pump 10.

[0068] Optionally, in this embodiment, the suspension system further includes a valve 40, which is connected to the end of the connecting pipe 20 away from the hydraulic pump 10. The shock absorber 30 is connected to the connecting pipe 20 via the valve 40. Thus, the valve 40 seals the connecting pipe 20 and controls the flow of hydraulic fluid. For example, in this embodiment, the valve 40 can be a switch valve, which allows for the opening or closing of the connecting pipe 20. This is simple and easy to implement, and compared to the prior art of vacuuming followed by oil injection via a check valve, it more conveniently achieves the function of controlling the flow of hydraulic fluid.

[0069] Optionally, in this embodiment, valve 40 includes a first switching valve 48 and a second switching valve 49, and connecting pipe 20 includes a first branch pipe 21 and a second branch pipe 22 respectively connected to hydraulic pump 10; the first switching valve 48 is connected to the end of the first branch pipe 21 away from hydraulic pump 10, shock absorber 30 is connected to the first branch pipe 21 through the first switching valve 48, and the second switching valve 49 is connected to the end of the second branch pipe 22 away from hydraulic pump 10, and shock absorber 30 is connected to the second branch pipe 22 through the second switching valve 49. This allows oil to be injected into hydraulic pump 10 through the first branch pipe 21 and output along the second branch pipe 22, achieving oil circulation injection. The first switching valve 48 controls the on / off connection between the first branch pipe 21 and the shock absorber, and the second switching valve 49 controls the on / off connection between the second branch pipe 22 and the shock absorber.

[0070] For example, in this embodiment, the valve 40 may be provided with a mounting part, and the mounting part has a mounting hole. By sequentially inserting fasteners through the mounting hole and the vibration damper 30, a relatively reliable connection between the valve 40 and the vibration damper 30 can be achieved, and the operation is simple and easy to implement. For example, the fasteners may be bolts, studs, screws, nuts, rivets, etc., and can be set according to actual needs. This embodiment does not limit the specific type of fastener.

[0071] In the embodiments of this application, for example, the number of mounting parts can be one, two, or three, etc., and the number of mounting holes can also be one, two, or three, etc. Correspondingly, the number of fasteners can also be one, two, or three, etc., to improve the installation firmness and reliability. It can be set according to the actual needs, such as the size of the valve 40 and the connection strength requirements. The embodiments of this application do not limit this.

[0072] This application also provides a vehicle that includes the aforementioned suspension system.

[0073] For example, in the embodiments of this application, the vehicle may include small cars, medium-sized cars, sedans, trucks, trailers, CDVs (Car Derived Vans), MPVs (multi-Purpose Vehicles), SUVs (Sport Utility Vehicles), etc. The specific type of vehicle is not limited in the embodiments of this application.

[0074] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0075] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A method for pre-filling oil into a suspension system, characterized in that, The method includes: Connect the connecting pipe (20) to the hydraulic pump (10), and the connecting pipe (20) is in communication with the hydraulic pump (10); Pre-inject oil into the connecting pipe (20) and the hydraulic pump (10); The connecting pipe (20) is sealed; Connect the connecting pipe (20) to the vibration damper (30); Release the blockage of the connecting pipe (20) to connect the oil passage of the shock absorber (30), the connecting pipe (20) and the hydraulic pump (10).

2. The pre-filling oil assembly method for the suspension system according to claim 1, characterized in that, The connecting pipe (20) includes a first branch pipe (21) and a second branch pipe (22), the first branch pipe (21) and the second branch pipe (22) being respectively connected to the hydraulic pump (10), and the step of pre-injecting oil into the connecting pipe (20) and the hydraulic pump (10) includes: Start the hydraulic pump (10), and the hydraulic pump (10) drives the oil to be injected into the hydraulic pump (10) through the first branch pipe (21) and output along the second branch pipe (22) to realize the injection of oil into the connecting pipe (20) and the hydraulic pump (10).

3. The pre-filling oil assembly method for the suspension system according to claim 1, characterized in that, A valve (40) is provided at the end of the connecting pipe (20) away from the hydraulic pump (10), and the step of closing the connecting pipe (20) includes: Close the valve (40) at the end of the connecting pipe (20) away from the hydraulic pump (10).

4. The pre-filling oil assembly method for the suspension system according to claim 3, characterized in that, The valve (40) includes a body (41) with a connecting port (42) and an interface (43), and a valve core (44) slidably connected within the body (41). The connecting port (42) has a sealing surface (45) on the side near the interface (43). The step of closing the valve (40) at the end of the connecting pipe (20) away from the hydraulic pump (10) includes: Rotate the valve core (44) until it abuts against the sealing surface (45) to close the connecting port (42) and disconnect the connection between the connecting port (42) and the interface (43).

5. The pre-filling oil assembly method for the suspension system according to claim 3, characterized in that, The step of releasing the seal on the connecting pipe (20) to connect the oil passage of the shock absorber (30), the connecting pipe (20), and the hydraulic pump (10) includes: Open the valve (40) at the end of the connecting pipe (20) away from the hydraulic pump (10).

6. The pre-filling oil assembly method for the suspension system according to claim 5, characterized in that, The valve (40) includes a body (41) with a connecting port (42) and an interface (43), and a valve core (44) slidably connected within the body (41). A baffle (46) is provided on the side of the connecting port (42) away from the interface (43). The step of opening the valve (40) at the end of the connecting pipe (20) away from the hydraulic pump (10) includes: Rotate the valve core (44) until it abuts against the partition (46) to open the connecting port (42) so that the connecting port (42) is connected to the interface (43).

7. A suspension system, employing the pre-filling oil assembly method of the suspension system according to any one of claims 1-6, characterized in that, The suspension system includes a hydraulic pump (10), a connecting pipe (20), and a shock absorber (30); The connecting pipe (20) is connected to the hydraulic pump (10) and the shock absorber (30) respectively. Before the connecting pipe (20) is connected to the shock absorber (30), oil is pre-filled in the connecting pipe (20) and the hydraulic pump (10).

8. The suspension system according to claim 7, characterized in that, The suspension system also includes a valve (40) connected to the end of the connecting pipe (20) away from the hydraulic pump (10), and the shock absorber (30) is connected to the connecting pipe (20) through the valve (40).

9. The suspension system according to claim 8, characterized in that, The valve (40) includes a first switching valve (48) and a second switching valve (49), and the connecting pipe (20) includes a first branch pipe (21) and a second branch pipe (22) respectively connected to the hydraulic pump (10); The first switching valve (48) is connected to the end of the first branch pipe (21) away from the hydraulic pump (10), the shock absorber (30) is connected to the first branch pipe (21) through the first switching valve (48), the second switching valve (49) is connected to the end of the second branch pipe (22) away from the hydraulic pump (10), and the shock absorber (30) is connected to the second branch pipe (22) through the second switching valve (49).

10. A vehicle, characterized in that, The vehicle includes the suspension system according to any one of claims 7-9.

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