A vehicle suspension assembly, a vehicle suspension system and a vehicle

Abstract

The application discloses a vehicle suspension assembly, a vehicle suspension system and a vehicle, and belongs to the technical field of vehicle suspensions. The vehicle suspension assembly is installed on a vehicle body and comprises a hydraulic cylinder, a first pipeline, a second pipeline, a plurality of accumulators and a plurality of damping valves. One end of the first pipeline is communicated with a rod cavity of the hydraulic cylinder. One end of the second pipeline is communicated with a rodless cavity of the hydraulic cylinder, and the other end of the second pipeline is respectively used for being communicated with the other end of the first pipeline of a vehicle suspension assembly located on the opposite side of the same axis of the vehicle suspension assembly, and the other end of the second pipeline of a vehicle suspension assembly located on the same side of different axes of the vehicle suspension assembly. The other end of the first pipeline is used for being communicated with the other end of the second pipeline of a vehicle suspension assembly located on the opposite side of the same axis of the vehicle suspension assembly. The plurality of accumulators are respectively installed on the first pipeline and the second pipeline. The plurality of damping valves are respectively installed on the first pipeline and the second pipeline. The first switch valve is installed on the first pipeline, and the first switch valve, the accumulator and the damping valve on the first pipeline are sequentially arranged in the oil inlet direction of the rod cavity.

Description

Technical Field

[0001] This application belongs to the technical field of vehicle suspension, and particularly relates to a vehicle suspension component, a vehicle suspension system, and a vehicle. Background Technology

[0002] For off-road vehicles, the components and piping of connected suspension systems with adjustable height, stiffness, and damping are complex. Due to the reduced vehicle width and the significant space occupied by components such as motors, batteries, and electrically retractable pedals, the available installation space in the vehicle chassis for connected suspension is reduced, making its installation quite difficult.

[0003] Among related technologies, the damping adjustment performance of interconnected suspension is relatively poor. Summary of the Invention

[0004] This application aims to at least partially solve the technical problem of poor adjustable performance of connected suspension. To this end, this application provides a vehicle suspension assembly, a vehicle suspension system, and a vehicle.

[0005] In a first aspect, embodiments of this application provide a vehicle suspension assembly, mounted on a vehicle body, comprising:

[0006] Hydraulic cylinder;

[0007] The first pipe has one end connected to the rod chamber of the hydraulic cylinder;

[0008] The second pipe has one end connected to the rodless chamber of the hydraulic cylinder, and the other end is used to connect to the other end of the first pipe of the vehicle suspension assembly located on the opposite side of the vehicle suspension assembly on the same axis as the vehicle suspension assembly, and the other end of the second pipe of the vehicle suspension assembly located on the same side of the opposite axis as the vehicle suspension assembly. The other end of the first pipe is used to connect to the other end of the second pipe of the vehicle suspension assembly located on the opposite side of the vehicle suspension assembly on the same axis as the vehicle suspension assembly.

[0009] Multiple accumulators are respectively installed on the first pipe and the second pipe;

[0010] Multiple damping valves are respectively installed on the first pipeline and the second pipeline;

[0011] A first switching valve is installed on the first pipeline along the oil inlet direction of the rod chamber. The first switching valve, the accumulator, and the damping valve are sequentially arranged on the first pipeline.

[0012] In some embodiments, the damping valve is a one-way damping valve. Along the oil inlet direction of the rod chamber, the one-way damping valve on the first flow channel is opened, and along the oil outlet direction of the rod chamber, the one-way damping valve on the first flow channel is throttled; and along the oil outlet direction of the rodless chamber, the one-way damping valve on the second flow channel is opened, and along the oil inlet direction of the rodless chamber, the one-way damping valve on the second flow channel is throttled.

[0013] In some embodiments, the damping valve and the accumulator are sequentially arranged on the second pipeline along the oil outlet direction of the rodless cavity.

[0014] In some embodiments, the vehicle suspension assembly further includes a valve body forming the first conduit and the second conduit, wherein the first switching valve, the accumulator, and the damping valve are all mounted on the valve body.

[0015] In some embodiments, the valve body has the following openings:

[0016] The first flow channel and the first oil port, second oil port, first damping valve mounting port, first accumulator mounting port and switch valve mounting port connected to the first flow channel, the first oil port is used to connect to the other end of the second pipe of the vehicle suspension assembly located on the opposite side of the vehicle suspension assembly on the same axis, and the second oil port is connected to the rod chamber of the hydraulic cylinder.

[0017] The second flow channel and the third, fourth, fifth, second damping valve mounting port, and second accumulator mounting port connected to the second flow channel, wherein the third, fourth, and fifth oil ports are respectively used to connect to the rodless chamber of the hydraulic cylinder, the other end of the first pipe of the vehicle suspension assembly located on the opposite side of the coaxial axis with the vehicle suspension assembly, and the other end of the second pipe of the vehicle suspension assembly located on the same side of the opposite axis with the vehicle suspension assembly;

[0018] The accumulator is installed in the first accumulator mounting port and the second accumulator mounting port, the damping valve is installed in the first damping valve mounting port and the second damping valve mounting port, and the first switching valve is installed in the switching valve mounting port.

[0019] In some embodiments, the first oil port, the second oil port, the fourth oil port, and the third oil port are located on the same end face of the valve body, and the first oil port, the second oil port, the fourth oil port, and the third oil port are arranged sequentially.

[0020] In some embodiments, the first switching valve mounting port and the first damping valve mounting port are located on the same end face of the valve body; the second damping valve mounting port and the fifth oil port are located on the same end face of the valve body; the first accumulator mounting port and the second accumulator mounting port are located on the same end face of the valve body.

[0021] The second damping valve mounting port is positioned opposite to the first switching valve mounting port; the first damping valve mounting port is positioned opposite to the fifth oil port; the first accumulator mounting port is positioned opposite to the first oil port; and the second accumulator mounting port is positioned opposite to the third oil port.

[0022] Secondly, embodiments of this application provide a vehicle suspension system, including:

[0023] The four vehicle suspension components described in the first aspect are arranged in an array;

[0024] A first interconnecting conduit connects one end of the first conduit of one of the two vehicle suspension assemblies located on the same axis to the other end of the second conduit of the other vehicle suspension assembly.

[0025] The second interconnecting conduit connects one end of the second conduit of one of the two vehicle suspension assemblies located on opposite axes to the other end of the second conduit of the other vehicle suspension assembly.

[0026] In some embodiments, the vehicle suspension system further includes:

[0027] The second switching valve is installed on the second interconnecting pipeline.

[0028] Thirdly, embodiments of this application provide a vehicle including the vehicle suspension assembly described in the first aspect or the vehicle suspension system described in the second aspect.

[0029] The present invention has at least the following beneficial effects:

[0030] Accumulators are installed on both the first and second pipes of the vehicle suspension assembly, which shortens the distance from the accumulator to the hydraulic cylinder. In other words, the distance that the oil travels from the accumulator to the hydraulic cylinder is shortened, which helps to reduce the impact of pipe length on damping and facilitates the adjustment of the vehicle suspension assembly's damping, resulting in better damping adjustment performance.

[0031] The first switching valve on the first pipeline allows the vehicle suspension system with vehicle suspension components to close the switching valve according to the vehicle's operating conditions. This closes the left-right interconnection of the vehicle suspension system while maintaining the front-rear interconnection. This ensures that each hydraulic cylinder of the vehicle suspension component has at least one accumulator connected to one side of the rod chamber, while the accumulators in the rodless chamber can be shared front and rear, with multiple accumulators connected in total. Because the left-right interconnection is removed, the coupling anti-roll capability is weakened. At the same time, the volume of the accumulator in the rod chamber becomes smaller, and the restoring damping force during large strokes is reduced due to the reduced gradient of the pressure difference change in the rod chamber. This design can increase the rapid contact of the wheels and reduce the change in the vehicle's attitude angle. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A schematic diagram of the vehicle suspension system in one or more embodiments of this application is shown.

[0034] Figure 2 A schematic diagram of the structure of a vehicle suspension assembly with the hydraulic cylinder concealed is shown in one or more embodiments of this application.

[0035] Figure 3 It shows Figure 2 A sectional view.

[0036] Reference numerals: 1000 - Vehicle suspension system; 100 - Vehicle suspension assembly; 110 - Hydraulic cylinder; 120 - First pipe; 130 - Second pipe; 140 - Accumulator; 150 - Damping valve; 160 - First switching valve; 170 - Valve body; 170a - First flow channel; 170a1 - First branch flow channel; 170a2 - Second branch flow channel; 170a3 - Third branch flow channel; 170b - First oil port; 170c - Second oil port; 170d - First damping valve mounting plate Installation ports: 170e - First accumulator installation port, 170f - Switch valve installation port, 170g - Second flow channel, 170g1 - Fourth branch flow channel, 170g2 - Fifth branch flow channel, 170g3 - Sixth branch flow channel, 170h - Third oil port, 170i - Fourth oil port, 170j - Fifth oil port, 170k - Second damping valve installation port, 170l - Second accumulator installation port, 200 - First interconnecting pipe, 300 - Second interconnecting pipe, 400 - Second switch valve. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0038] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0041] In related technologies, the oil pipe from the accumulator to the rod-side or rodless side chamber of the working cylinder is relatively long, and the pipe length has a significant impact on damping. Therefore, interconnected suspensions suffer from poor damping adjustment performance. This application provides a vehicle suspension assembly, a vehicle suspension system, and a vehicle, which can at least partially solve the technical problem of poor adjustment performance in interconnected suspensions.

[0042] This application is described below with reference to the accompanying drawings and specific embodiments:

[0043] like Figure 1 As shown, the vehicle suspension assembly 100 is mounted on the vehicle body and includes a hydraulic cylinder 110, a first pipe 120, a second pipe 130, multiple accumulators 140, multiple damping valves 150, and a first switching valve 160.

[0044] The hydraulic cylinder 110 may include a cylinder barrel and a piston rod, with a portion of the piston rod located inside the cylinder barrel, forming a rod-side chamber and a rodless chamber. When using the vehicle suspension assembly 100, the cylinder barrel may be fixedly connected to the control arm of the wheel, and the piston rod may be fixedly connected to the vehicle frame. Shock-absorbing springs and other structures may also be fitted over the cylinder barrel and piston rod. The structure and installation method of the hydraulic cylinder 110 are diverse and well-known to those skilled in the art, and will not be elaborated upon here. The hydraulic cylinder 110 and the springs and other components fitted over it can form a shock absorber for the vehicle, reducing vehicle vibration.

[0045] One end of the first pipe 120 is connected to the rod chamber of the hydraulic cylinder 110; one end of the second pipe 130 is connected to the rodless chamber of the hydraulic cylinder 110, and the other end is used to connect to the other end of the first pipe 120 of the vehicle suspension assembly 100 located on the opposite side of the coaxial axis of the vehicle suspension assembly 100, and the other end of the second pipe 130 of the vehicle suspension assembly 100 located on the same side of the opposite axis of the vehicle suspension assembly 100. The other end of the first pipe 120 is used to connect to the other end of the second pipe 130 of the vehicle suspension assembly 100 located on the opposite side of the coaxial axis of the vehicle suspension assembly 100.

[0046] like Figure 1 As shown, the two vehicle suspension assemblies 100 located on the front side are coaxial, and the two vehicle suspension assemblies 100 located on the rear side are also coaxial. The vehicle suspension assembly 100 on the opposite side of the coaxial axis of the vehicle suspension assembly 100 located on the left front side is the vehicle suspension assembly 100 located on the right front side; similarly, the vehicle suspension assembly 100 on the opposite side of the coaxial axis of the vehicle suspension assembly 100 located on the left rear side is the vehicle suspension assembly 100 located on the right rear side. The two vehicle suspension assemblies 100 located on the left side are off-axis, and the two vehicle suspension assemblies 100 located on the right side are also off-axis. The vehicle suspension assembly 100 on the same side of the off-axis axis of the vehicle suspension assembly 100 located on the left front side is the vehicle suspension assembly 100 located on the left rear side; similarly, the vehicle suspension assembly 100 on the same side of the off-axis axis of the vehicle suspension assembly 100 located on the right front side is the vehicle suspension assembly 100 located on the right rear side.

[0047] In other words, the other end of the second pipe 130 has two interfaces. One end of the first pipe 120 is connected to the rod-side chamber of the hydraulic cylinder 110, and the other end is connected to one of the interfaces at the other end of the second pipe 130 of the vehicle suspension assembly 100 on the opposite side of the coaxial axis. One end of the second pipe 130 is connected to the rodless chamber of the hydraulic cylinder 110, and one of the interfaces at the other end is connected to one of the interfaces at the other end of the second pipe 130 of the vehicle suspension assembly 100 on the same side of the opposite axis, while the other interface is connected to the other end of the first pipe 120 of the vehicle suspension assembly 100 on the opposite side of the coaxial axis. With this design, the vehicle suspension system 1000 of this application is interconnected front and rear, and also interconnected left and right.

[0048] like Figure 1 As shown, the other end of the first pipe 120 of the vehicle suspension assembly 100 located on the left front side is connected to the other end of the second pipe 130 of the vehicle suspension assembly 100 located on the right front side; the other end of the second pipe 130 of the vehicle suspension assembly 100 located on the left front side is connected to the other end of the first pipe 120 of the vehicle suspension assembly 100 located on the right front side and the other end of the second pipe 130 of the vehicle suspension assembly 100 located on the left lower side.

[0049] Multiple accumulators 140 are respectively installed on the first pipe 120 and the second pipe 130; multiple damping valves 150 are respectively installed on the first pipe 120 and the second pipe 130; a first switching valve 160 is installed on the first pipe 120. Along the oil inlet direction of the rod chamber, the first switching valve 160, the accumulators 140 and the damping valves 150 on the first pipe 120 are arranged in sequence.

[0050] The number of accumulators 140 is two or more, with accumulators 140 installed on both the first pipe 120 and the second pipe 130. That is, there is at least one accumulator 140 on each of the first pipe 120 and the second pipe 130. Similarly, the number of damping valves 150 is two or more, with damping valves 150 installed on both the first pipe 120 and the second pipe 130. A first switching valve 160 is provided on at least the first pipe 120. A first switching valve 160 may or may not be installed on the second pipe 130; this application does not impose any limitations on this.

[0051] In some embodiments of this application, an accumulator 140 and a damping valve 150 are installed on both the first pipe 120 and the second pipe 130, and a first switching valve 160 is provided on the first pipe 120.

[0052] Accumulators 140 are installed on both the first pipe 120 and the second pipe 130 of the vehicle suspension assembly 100, which shortens the distance from the accumulator 140 to the hydraulic cylinder 110. That is, the distance for the oil to flow in and out of the accumulator 140 is shortened, which helps to reduce the influence of pipe length on damping and facilitates the adjustment of the damping of the vehicle suspension assembly 100, resulting in better damping adjustment performance.

[0053] The first switching valve 160 on the first pipe 120 allows the vehicle suspension system 1000 with the vehicle suspension assembly 100 to close the switching valve according to the vehicle's operating conditions. This closes the left-right interconnection of the vehicle suspension system 1000 while maintaining the front-rear interconnection. This ensures that at least one accumulator 140 is connected to one side of the rod chamber of the hydraulic cylinder 110 of each vehicle suspension assembly 100, while the accumulator 140 in the rodless chamber can be shared front and rear, with multiple accumulators 140 connected in total. Because the left-right interconnection is removed, the coupling anti-roll capability is weakened. At the same time, the volume of the accumulator 140 in the rod chamber becomes smaller, and the restoring damping force during large strokes is reduced due to the decrease in the pressure difference gradient of the rod chamber. This design can increase the rapid ground contact of the wheels and reduce the change in the vehicle's attitude angle.

[0054] In some embodiments, a damping valve 150 and an accumulator 140 are sequentially arranged on the second pipe 130 along the oil outlet direction of the rodless chamber.

[0055] In other words, the damping valve 150 on the second pipe 130 is located between the accumulator 140 and the hydraulic cylinder 110.

[0056] In some embodiments, the damping valve 150 is a one-way damping valve 150. Along the oil inlet direction of the rod chamber, the one-way damping valve 150 on the first flow channel 170a is open, and along the oil outlet direction of the rod chamber, the one-way damping valve 150 on the first flow channel 170a is throttled; and along the oil outlet direction of the rodless chamber, the one-way damping valve 150 on the second flow channel 170g is open, and along the oil inlet direction of the rodless chamber, the one-way damping valve 150 on the second flow channel 170g is throttled.

[0057] It should be noted that the one-way damping valve 150 includes a one-way valve and a throttle valve connected in parallel. Along the oil inlet direction of the rod chamber, the one-way valve on the first flow channel 170a is open; along the oil outlet direction of the rod chamber, the one-way valve on the first flow channel 170a is closed. Along the oil outlet direction of the rodless chamber, the one-way valve on the second flow channel 170g is open; along the oil inlet direction of the rodless chamber, the one-way valve on the second flow channel 170g is closed.

[0058] This design allows the damping valves 150 on the rod-side and rodless sides of the hydraulic cylinder 110 to be reversed, achieving the required asymmetry between restoring (tensioning) damping and compressive damping. Specifically, with this design, when the suspension is extended, the volume of the rod chamber decreases, and the volume of the rodless working cylinder increases. The one-way valve of the one-way damping valve 150 (i.e., the one-way valve on the first pipe 120) for oil outlet of the rod chamber is closed, and the one-way valve of the one-way damping valve 150 (i.e., the one-way valve on the second pipe 130) for oil inlet of the rodless chamber is also closed. The oil can only pass through two throttle valves (i.e., the throttle valve on the first pipe 120 and the throttle valve on the second pipe 130), resulting in a large throttling pressure difference and a larger restoring damping force. Conversely, when the suspension is compressed, the volume of the rod chamber increases, and the volume of the rodless working cylinder decreases. The one-way valve of the rod chamber (i.e., the one-way valve on the first pipe 120) for oil inlet of the rod chamber is open, and the one-way valve of the rodless chamber (i.e., the one-way valve on the second pipe 130) for oil outlet of the rodless chamber is also open. The oil passes through more one-way valves, resulting in a smaller throttling pressure difference and a smaller compression damping force. This allows the vehicle's suspension system to gently dampen vibrations during compression and to dampen relatively more during rebound, thereby reducing the magnitude of changes in vehicle posture, absorbing impact energy, and attenuating vibrations. In other words, it reduces the vibrations and bumps felt by passengers during vehicle operation, improving ride comfort.

[0059] like Figure 2 and Figure 3 As shown, in some embodiments, the vehicle suspension assembly 100 further includes a valve body 170, which forms a first conduit 120 and a second conduit 130. A first switching valve 160, an accumulator 140, and a damping valve 150 are all mounted on the valve body 170.

[0060] The valve body 170 has flow channels and various ports communicating with the flow channels. The combination of these flow channels and ports can form the first pipe 120 and the second pipe 130. This design integrates the functions of the first pipe 120 and the second pipe 130 into the same valve body 170, eliminating the need for separate first pipe 120 and second pipe 130. This helps to reduce the number of parts in the vehicle suspension assembly 100. Furthermore, the first switching valve 160, accumulator 140, and damping valve 150 are mounted on the valve body 170, which improves the integration of the vehicle suspension assembly 100. Furthermore, with this design, both the first pipe 120 and the second pipe 130 are integrated onto the valve body 170. The valve bodies 170 can be interconnected front-to-back and left-to-right via interconnecting pipes, allowing them to be positioned close to the hydraulic cylinder 110. This results in a shorter distance between the accumulator 140 on the valve body 170 and the hydraulic cylinder 110, reducing the impact of pipe length on damping and facilitating the adjustment of the vehicle suspension assembly 100's damping, leading to better damping adjustment performance. Accumulators 140 are installed on both the first pipe 120 and the second pipe 130 of the vehicle suspension assembly 100. The accumulators 140 on both pipes are mounted on the same valve body 170, shortening and nearly equalizing the distances from the accumulator 140 to the rod-side and rodless-side chambers of the hydraulic cylinder 110. This further reduces the impact of pipe length on damping, facilitating the adjustment of the vehicle suspension assembly 100's damping and resulting in better damping adjustment performance.

[0061] In some embodiments, the valve body 170 is fixedly installed on the front or rear suspension axle of the vehicle. The valve body 170 is close to the hydraulic cylinder 110, which shortens the distance between the accumulator 140 on the valve body 170 and the hydraulic cylinder 110, reduces the influence of the pipe length on the damping, and facilitates the adjustment of the damping of the vehicle suspension assembly 100, resulting in better damping adjustment performance.

[0062] In some embodiments, the valve body 170 is provided with a mounting hole, and the valve body 170 is fixedly mounted on the front suspension axle or the rear suspension axle of the vehicle through the mounting hole.

[0063] In some embodiments, each valve body 170 is connected via a first interconnecting conduit 200 and a second interconnecting conduit 300.

[0064] In some embodiments, the valve body 170 has a first flow channel 170a and a first oil port 170b, a second oil port 170c, a first damping valve mounting port 170d, a first accumulator mounting port 170e, and a switch valve mounting port 170f connected to the first flow channel 170a. It also has a second flow channel 170g and a third oil port 170h, a fourth oil port 170i, a fifth oil port 170j, a second damping valve mounting port 170k, and a second accumulator mounting port 170l connected to the second flow channel 170g. The first oil port 170b is used to connect to the fourth oil port 170i of the second pipe 130 of the vehicle suspension assembly 100, which is located on the opposite side of the vehicle suspension assembly 100 coaxially. The second oil port 170c is connected to... The rod chamber of the hydraulic cylinder 110 is connected; the third oil port 170h, the fourth oil port 170i, and the fifth oil port 170j are respectively used to connect the rodless chamber of the hydraulic cylinder 110, the first oil port 170b of the first pipe 120 of the vehicle suspension assembly 100 located on the opposite side of the coaxial axis to the vehicle suspension assembly 100, and the fifth oil port 170j of the second pipe 130 of the vehicle suspension assembly 100 located on the same side of the opposite axis to the vehicle suspension assembly 100; the accumulator 140 is installed in the first accumulator mounting port 170e and the second accumulator mounting port 170l, the damping valve 150 is installed in the first damping valve mounting port 170d and the second damping valve mounting port 170k, and the first switching valve 160 is installed in the switching valve mounting port 170f.

[0065] The first flow channel 170a, along with the first oil port 170b, the second oil port 170c, the first damping valve mounting port 170d, the first accumulator mounting port 170e, and the switch valve mounting port 170f connected to the first flow channel 170a, together form the first pipeline 120. The second flow channel 170g, along with the third oil port 170h, the fourth oil port 170i, the fifth oil port 170j, the second damping valve mounting port 170k, and the second accumulator mounting port 170l connected to the second flow channel 170g, together form the second pipeline 130.

[0066] An accumulator 140 is installed in a first accumulator mounting port 170e and a second accumulator mounting port 170l. The accumulator 140 installed in the first accumulator mounting port 170e is connected to a first flow channel 170a, and the accumulator 140 installed in the second accumulator mounting port 170l is connected to a second flow channel 170g. A damping valve 150 is installed in a first damping valve mounting port 170d and a second damping valve mounting port 170k. The damping valve 150 installed in the first damping valve mounting port 170d is connected to the first flow channel 170a, and the damping valve 150 installed in the second damping valve mounting port 170k is connected to the second flow channel 170g. A first switching valve 160 is installed in a switching valve mounting port 170f and is connected to the first flow channel 170a. The switching valve controls the opening and closing of the first flow channel 170a. In some embodiments, the switching valve is a solenoid switching valve.

[0067] The first oil port 170b can be connected via an oil pipe to the fourth oil port 170i of the second pipe 130 of the vehicle suspension assembly 100, which is located on the opposite side of the vehicle suspension assembly 100 on the same axle. The third oil port 170h, the fourth oil port 170i, and the fifth oil port 170j can also be connected via oil pipes to the rodless chamber of the hydraulic cylinder 110, the first oil port 170b of the first pipe 120 of the vehicle suspension assembly 100, which is located on the opposite side of the vehicle suspension assembly 100 on the same axle, and the fifth oil port 170j of the second pipe 130 of the vehicle suspension assembly 100, which is located on the same side of the vehicle suspension assembly 100 on a different axle.

[0068] In some embodiments, the first flow channel 170a includes a first branch channel 170a1, a second branch channel 170a2, and a third branch channel 170a3 connected in sequence. The first branch channel 170a1 and the third branch channel 170a3 are arranged in parallel. The second branch channel 170a2 is located at one end of the first branch channel 170a1 and the third branch channel 170a3, and is connected to the first branch channel 170a1 and the third branch channel 170a3. The second branch channel 170a2 is perpendicular to the first branch channel 170a1 and the third branch channel 170a3. The first oil port 170b is located at the end of the first branch channel 170a1 away from the second branch channel 170a2, the second oil port 170c is located at the end of the third branch channel 170a3 away from the second branch channel 170a2, the switch valve mounting port 170f is located on the first branch channel 170a1, and the first accumulator mounting port 170e and the first damping valve mounting port 170d are both located at the end where the first branch channel 170a1 and the second branch channel 170a2 are connected.

[0069] In some embodiments, the second flow channel 170g includes a fourth flow channel 170g1, a fifth flow channel 170g2, and a sixth flow channel 170g3 connected in sequence. The fourth flow channel 170g1 and the sixth flow channel 170g3 are arranged in parallel. The fifth flow channel 170g2 is located at one end of the fourth flow channel 170g1 and the sixth flow channel 170g3, and is connected to the fourth flow channel 170g1 and the sixth flow channel 170g3. The fifth flow channel 170g2 is perpendicular to the fourth flow channel 170g1 and the sixth flow channel 170g3. The fourth oil port 170i is located at the end of the fourth branch channel 170g1 away from the fifth branch channel 170g2. The third oil port 170h is located at the end of the sixth branch channel 170g3 away from the fifth branch channel 170g2. The second damping valve mounting port 170k is located on the sixth branch channel 170g3. The fifth oil port 170j and the second accumulator mounting port 170l are both located at the end where the fifth branch channel 170g2 and the sixth branch channel 170g3 are connected.

[0070] In some embodiments, the first oil port 170b, the second oil port 170c, the fourth oil port 170i, and the third oil port 170h are opened on the same end face of the valve body 170, and the first oil port 170b, the second oil port 170c, the fourth oil port 170i, and the third oil port 170h are arranged sequentially.

[0071] The first oil port 170b and the fourth oil port 170i are respectively used to connect to the second pipe 130 and the first pipe 120 of the coaxial opposite vehicle suspension assembly 100. With this design, the first oil port 170b and the fourth oil port 170i are located on the same end face, which facilitates the connection between the vehicle suspension assembly 100 and the vehicle suspension assembly 100 on the coaxial opposite side. The second oil port 170c and the third oil port 170h are respectively used to communicate with the rod chamber and the rodless chamber of the hydraulic cylinder 110. The fact that the second oil port 170c and the third oil port 170h are located on the same end face facilitates the connection between the hydraulic cylinder 110 and the valve body 170. The first oil port 170b, the second oil port 170c, the fourth oil port 170i, and the third oil port 170h are arranged in sequence, such that the second oil port 170c and the fourth oil port 170i are located between the first oil port 170b and the third oil port 170h, and there is a certain distance between the second oil port 170c and the third oil port 170h, which can facilitate the installation of the hydraulic cylinder 110 to a certain extent.

[0072] In some embodiments, the first switching valve mounting port 170f and the first damping valve mounting port 170d are located on the same end face of the valve body 170; the second damping valve mounting port 170k and the fifth oil port 170j are located on the same end face of the valve body 170; the first accumulator mounting port 170e and the second accumulator mounting port 170l are located on the same end face of the valve body 170; the second damping valve mounting port 170k and the first switching valve mounting port 170f are positioned opposite each other; the first damping valve mounting port 170d and the fifth oil port 170j are positioned opposite each other; the first accumulator mounting port 170e and the first oil port 170b are positioned opposite each other; and the second accumulator mounting port 170l and the third oil port 170h are positioned opposite each other.

[0073] like Figure 2 and Figure 3As shown, in some embodiments, the valve body 170 is rectangular. The first oil port 170b, the second oil port 170c, the fourth oil port 170i, and the third oil port 170h are located on the upper end face of the valve body 170. The first switching valve 160 mounting port 170f and the first damping valve mounting port 170d are located on the left end face of the valve body 170. The second damping valve mounting port 170k and the fifth oil port 170j are located on the right end face of the valve body 170. The first accumulator mounting port 170e and the second accumulator mounting port 170l are located on the lower end face of the valve body 170. The different ports located on different end faces of the valve body 170 utilize the positions of these end faces to avoid interference when components are connected to the valve body 170. The second damping valve mounting port 170k is positioned opposite to the first switching valve mounting port 170f; the first damping valve mounting port 170d is positioned opposite to the fifth oil port 170j; the first accumulator mounting port 170e is positioned opposite to the first oil port 170b; and the second accumulator mounting port 170l is positioned opposite to the third oil port 170h. This arrangement facilitates the machining of the valve body 170 using a lathe or similar machine, reduces the number of positioning and drilling operations required for the valve body 170, and improves the machining efficiency of the valve body 170.

[0074] Based on the same inventive concept, this application also provides a vehicle suspension system 1000, comprising:

[0075] Four vehicle suspension components 100 arranged in an array;

[0076] The first interconnecting conduit 200 connects the other end of the first conduit 120 of one of the two vehicle suspension assemblies 100 located on the same axis to the other end of the second conduit 130 of the other vehicle suspension assembly 100.

[0077] The second interconnecting conduit 300 connects the other end of the second conduit 130 of one of the two vehicle suspension assemblies 100 located on different axles to the other end of the second conduit 130 of the other vehicle suspension assembly 100.

[0078] Four vehicle suspension components are arranged in an array of 100, such as Figure 1 As shown, place them on the left front side, right front side, left rear side, and right rear side respectively.

[0079] The first interconnecting conduit 200 has four pipes. One pipe connects the first oil port 170b of the valve body 170 of the left front vehicle suspension assembly 100 to the fourth oil port 170i of the valve body 170 of the right front vehicle suspension assembly 100. Another pipe connects the fourth oil port 170i of the valve body 170 of the left front vehicle suspension assembly 100 to the first oil port 170b of the valve body 170 of the right front vehicle suspension assembly 100. A third pipe connects the first oil port 170b of the valve body 170 of the left rear vehicle suspension assembly 100 to the fourth oil port 170i of the valve body 170 of the right rear vehicle suspension assembly 100. A fourth pipe connects the fourth oil port 170i of the valve body 170 of the left rear vehicle suspension assembly 100 to the first oil port 170b of the valve body 170 of the right rear vehicle suspension assembly 100.

[0080] The second interconnecting pipe 300 is provided with two pipes. One pipe connects the fifth oil port 170j of the valve body 170 of the left front vehicle suspension assembly 100 to the fifth oil port 170j of the valve body 170 of the left rear vehicle suspension assembly 100. The other pipe connects the fifth oil port 170j of the valve body 170 of the right front vehicle suspension assembly 100 to the fifth oil port 170j of the valve body 170 of the right rear vehicle suspension assembly 100.

[0081] With this design, when the vehicle suspension system 1000 is traveling on rough roads such as cobblestone roads, the first switch valve 160 can be closed, thus closing the left-right interconnection of the vehicle suspension system 1000 while maintaining the front-rear interconnection. This allows each hydraulic cylinder 110 of the vehicle suspension assembly 100 to have at least one accumulator 140 connected to one side of the rod chamber, while the accumulator 140 in the rodless chamber can be shared front and rear, with multiple accumulators 140 connected in total. Because the left-right interconnection is removed, the coupling anti-roll capability is weakened. At the same time, the volume of the accumulator 140 in the rod chamber becomes smaller, and the restoring damping force during large strokes is reduced due to the decrease in the pressure difference gradient of the rod chamber. This design can increase the rapid contact of the wheels and reduce the change in the vehicle's attitude angle.

[0082] In some embodiments, the vehicle suspension system 1000 further includes a second switching valve 400, which is mounted on the second interconnecting conduit 300.

[0083] A second switching valve 400 is installed on each of the two second interconnecting pipes 300. In some embodiments, the second switching valve 400 is an electromagnetic switching valve. With this design, when the second switching valve 400 is opened, the front and rear interconnection of the vehicle suspension system 1000 is opened, which can improve the vehicle's off-road performance. When the second switching valve 400 is closed, the front and rear interconnection of the vehicle suspension system 1000 is closed, which can improve the vehicle's anti-pitch performance.

[0084] Based on the same inventive concept, this application also provides a vehicle, including the vehicle suspension assembly 100 or the vehicle suspension system 1000 described above.

[0085] Since the vehicle includes the aforementioned vehicle suspension assembly 100 or the aforementioned vehicle suspension system 1000, it naturally possesses all the beneficial effects of the vehicle suspension assembly 100 or the vehicle suspension system 1000, which will not be elaborated upon here.

[0086] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "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 this application. 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. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0087] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0088] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle suspension assembly, characterized in that, Mounted on the vehicle body, including: Hydraulic cylinder (110); The first pipe (120) is connected at one end to the rod chamber of the hydraulic cylinder (110); The second pipe (130) has one end connected to the rodless cavity of the hydraulic cylinder (110), and the other end is used to connect to the other end of the first pipe (120) of the vehicle suspension assembly (100) located on the opposite side of the coaxial axis of the vehicle suspension assembly (100), and the other end of the second pipe (130) of the vehicle suspension assembly (100) located on the same side of the opposite axis of the vehicle suspension assembly (100). The other end of the first pipe (120) is used to connect to the other end of the second pipe (130) of the vehicle suspension assembly (100) located on the opposite side of the coaxial axis of the vehicle suspension assembly (100). Multiple accumulators (140) are respectively installed on the first pipe (120) and the second pipe (130); Multiple damping valves (150) are respectively installed on the first pipe (120) and the second pipe (130); The first switching valve (160) is installed on the first pipeline (120). Along the oil inlet direction of the rod chamber, the first switching valve (160), the accumulator (140) and the damping valve (150) are arranged in sequence on the first pipeline (120). The four vehicle suspension components are arranged in an array, placed on the left front, right front, left rear, and right rear sides respectively.

2. The vehicle suspension assembly according to claim 1, characterized in that, The damping valve (150) is a one-way damping valve (150). Along the oil inlet direction of the rod chamber, the one-way damping valve (150) on the first flow channel (170a) is opened, and along the oil outlet direction of the rod chamber, the one-way damping valve (150) on the first flow channel (170a) is throttled. Furthermore, along the oil outlet direction of the rodless cavity, the one-way damping valve (150) on the second flow channel (170g) is opened, and along the oil inlet direction of the rodless cavity, the one-way damping valve (150) on the second flow channel (170g) is throttled.

3. The vehicle suspension assembly according to claim 1, characterized in that, Along the oil outlet direction of the rodless cavity, the damping valve (150) and the accumulator (140) on the second pipe (130) are arranged in sequence.

4. The vehicle suspension assembly according to any one of claims 1-3, characterized in that, The vehicle suspension assembly (100) also includes a valve body (170) that forms the first conduit (120) and the second conduit (130), and the first switching valve (160), the accumulator (140) and the damping valve (150) are all mounted on the valve body (170).

5. The vehicle suspension assembly according to claim 4, characterized in that, The valve body (170) has the following openings: The first flow channel (170a) and the first oil port (170b), the second oil port (170c), the first damping valve mounting port (170d), the first accumulator mounting port (170e) and the switch valve mounting port (170f) connected to the first flow channel (170a); the second flow channel (170g) and the third oil port (170h), the fourth oil port (170i), the fifth oil port (170j), the second damping valve mounting port (170k) and the second accumulator mounting port (170l) connected to the second flow channel (170g); The first oil port (170b) is used to connect to the fourth oil port (170i) of the second pipe (130) of the vehicle suspension assembly (100) located on the opposite side of the vehicle suspension assembly (100) on the same axis, and the second oil port (170c) is connected to the rod chamber of the hydraulic cylinder (110). The third oil port (170h), the fourth oil port (170i), and the fifth oil port (170j) are respectively used to connect the rodless chamber of the hydraulic cylinder (110), the first oil port (170b) of the first pipe (120) of the vehicle suspension assembly (100) located on the opposite side of the coaxial axis to the vehicle suspension assembly (100), and the fifth oil port (170j) of the second pipe (130) of the vehicle suspension assembly (100) located on the same side of the opposite axis to the vehicle suspension assembly (100). The accumulator (140) is installed in the first accumulator mounting port (170e) and the second accumulator mounting port (170l), the damping valve (150) is installed in the first damping valve mounting port (170d) and the second damping valve mounting port (170k), and the first switching valve (160) is installed in the switching valve mounting port (170f).

6. The vehicle suspension assembly according to claim 5, characterized in that, The first oil port (170b), the second oil port (170c), the fourth oil port (170i), and the third oil port (170h) are located on the same end face of the valve body (170), and the first oil port (170b), the second oil port (170c), the fourth oil port (170i), and the third oil port (170h) are arranged sequentially.

7. The vehicle suspension assembly according to claim 6, characterized in that, The switch valve mounting port (170f) and the first damping valve mounting port (170d) are located on the same end face of the valve body (170); the second damping valve mounting port (170k) and the fifth oil port (170j) are located on the same end face of the valve body (170); the first accumulator mounting port (170e) and the second accumulator mounting port (170l) are located on the same end face of the valve body (170). The second damping valve mounting port (170k) is positioned opposite to the switching valve mounting port (170f); the first damping valve mounting port (170d) is positioned opposite to the fifth oil port (170j); the first accumulator mounting port (170e) is positioned opposite to the first oil port (170b); and the second accumulator mounting port (170l) is positioned opposite to the third oil port (170h).

8. A vehicle suspension system, characterized in that, include: Four vehicle suspension assemblies (100) arranged in an array as described in any one of claims 1-7; A first interconnecting conduit (200) connects one end of the first conduit (120) of one of the two vehicle suspension assemblies (100) located on the same axis to the other end of the second conduit (130) of the other vehicle suspension assembly (100). The second interconnecting conduit (300) connects one end of the second conduit (130) of one of the two vehicle suspension assemblies (100) located on opposite axes to the other end of the second conduit (130) of the other vehicle suspension assembly (100).

9. The vehicle suspension system according to claim 8, characterized in that, The vehicle suspension system (1000) also includes: The second switching valve (400) is installed on the second interconnecting pipe (300).

10. A vehicle, characterized in that, It includes the vehicle suspension assembly (100) according to any one of claims 1-7 or the vehicle suspension system (1000) according to any one of claims 8-9.

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