Vehicle suspension assembly, vehicle suspension system and vehicle

Abstract

The invention 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; one end of the first pipeline is communicated with a rod cavity of the hydraulic cylinder; one end of the second pipeline communicates with a rodless cavity of the hydraulic cylinder, and the other end of the second pipeline is used for communicating with the other end of the first pipeline of the vehicle suspension assembly located on the coaxial opposite side with the vehicle suspension assembly and the other end of the second pipeline of the vehicle suspension assembly located on the non-coaxial same side with the vehicle suspension assembly; the other end of the first pipeline is used for communicating with the other end of the second pipeline of the vehicle suspension assembly located on the coaxial opposite side of the vehicle suspension assembly. The plurality of energy accumulators are respectively mounted on the first pipeline and the second pipeline; the damping valves are mounted on the first pipeline and the second pipeline respectively; the first switch valve is installed on the first pipeline, and the first switch valve, the energy 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] The present application belongs to the technical field of vehicle suspension, and in particular, relates to a vehicle suspension component, a vehicle suspension system and a vehicle. Background Art

[0002] The interconnected suspension with adjustable height, stiffness and damping used in off-road vehicles has complex components and pipeline layout. Due to the vehicle width compression and the large space occupied by components such as motors, batteries and electric telescopic pedals, the installation space available for the interconnected suspension on the vehicle chassis is reduced, making the layout of the interconnected suspension more difficult.

[0003] In the related art, the damping adjustment performance of the interconnected suspension is poor. Summary of the invention

[0004] The present application aims to solve the technical problem of poor adjustment performance of interconnected suspensions to a certain extent at least. To this end, the present application provides a vehicle suspension assembly, a vehicle suspension system and a vehicle.

[0005] In a first aspect, an embodiment of the present application provides a vehicle suspension assembly, which is installed on a vehicle body, and includes:

[0006] Hydraulic cylinder;

[0007] A first pipe, one end of which is connected to the rod chamber of the hydraulic cylinder;

[0008] A second pipe, one end of which is connected to the rodless chamber of the hydraulic cylinder, and the other end of which is respectively used to connect to the other end of the first pipe of the vehicle suspension component located on the coaxial opposite side of the vehicle suspension component and the other end of the second pipe of the vehicle suspension component located on the same side of the different axis as the vehicle suspension component, and the other end of the first pipe is used to connect to the other end of the second pipe of the vehicle suspension component located on the coaxial opposite side of the vehicle suspension component;

[0009] A plurality of accumulators, respectively installed on the first pipeline and the second pipeline;

[0010] A plurality of damping valves are respectively installed on the first pipeline and the second pipeline;

[0011] The first switch valve is installed on the first pipeline. Along the oil inlet direction of the rod chamber, the first switch valve, the accumulator and the damping valve on the first pipeline are arranged in sequence.

[0012] In some embodiments, the damping valve is a one-way damping valve, and 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, along the oil outlet direction of the rodless chamber, the damping valve and the accumulator on the second pipeline are arranged in sequence.

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

[0015] In some embodiments, the valve body is provided with:

[0016] a first flow channel and a first oil port, a second oil port, a first damping valve mounting port, a first accumulator mounting port and a switch valve mounting port connected to the first flow channel, the first oil port being used to connect to the other end of a second pipeline of a vehicle suspension component located on the coaxial opposite side of the vehicle suspension component, and the second oil port being connected to a rod chamber of the hydraulic cylinder;

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

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

[0019] In some embodiments, the first oil port, the second oil port, the fourth oil port and the third oil port are opened on the same end surface of the valve body, and the first oil port, the second oil port, the fourth oil port and the third oil port are arranged in sequence.

[0020] In some embodiments, the first switch valve installation port and the first damping valve installation port are opened on the same end surface of the valve body; the second damping valve installation port and the fifth oil port are opened on the same end surface of the valve body; the first accumulator installation port and the second accumulator installation port are opened on the same end surface of the valve body;

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

[0022] In a second aspect, an embodiment of the present application provides a vehicle suspension system, comprising:

[0023] Four vehicle suspension components according to the first aspect arranged in an array;

[0024] A first interconnected pipe is located in two coaxial vehicle suspension components, wherein the other end of the first pipe of one of the vehicle suspension components is connected to the other end of the second pipe of the other vehicle suspension component;

[0025] The second interconnected pipe is located in the two vehicle suspension components with different axes, and the other end of the second pipe of one vehicle suspension component is connected to the other end of the second pipe of the other vehicle suspension component.

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

[0027] The second switch valve is installed on the second interconnected pipeline.

[0028] In a third aspect, an embodiment of the present application provides a vehicle, comprising 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 provided on both the first and second pipelines of the vehicle suspension assembly, so that the distance from the accumulator to the hydraulic cylinder is shortened, that is, the distance for the oil to flow in and out of the accumulator is shortened, which helps to reduce the influence of the pipeline length on the damping, is beneficial to the adjustment of the damping of the vehicle suspension assembly, and has better damping adjustment performance.

[0031] The arrangement of the first switch valve on the first pipeline allows the vehicle suspension system with a vehicle suspension component to close the switch valve according to the vehicle operating conditions, thereby closing the left and right interconnections of the vehicle suspension system and maintaining the front and rear interconnections, so that one side of the rod chamber of the hydraulic cylinder of each vehicle suspension component is connected to at least one accumulator, and the accumulator without a rod chamber can be shared front and back, and a total of multiple accumulators are connected. As the left and right interconnections are released, the coupled anti-roll capability is weakened, and at the same time the volume of the rod chamber accumulator becomes smaller, and the restoring damping force during a large stroke is reduced due to the reduced gradient of the pressure difference in the rod chamber. Such a design can increase the rapid ground contact of the wheels and reduce the change in the vehicle's attitude angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

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

[0034] Figure 2 A schematic diagram of the structure of a vehicle suspension assembly behind which a hydraulic cylinder is hidden in one or more embodiments of the present application is shown.

[0035] Figure 3 Shows Shows Figure 2 sectional view of .

[0036] Reference numerals: 1000 - vehicle suspension system, 100 - vehicle suspension assembly, 110 - hydraulic cylinder, 120 - first pipeline, 130 - second pipeline, 140 - accumulator, 150 - damping valve, 160 - first switch 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 installation Installation port, 170e-first accumulator installation port, 170f-switching 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 interconnected pipeline, 300-second interconnected pipeline, 400-second switching valve. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work 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 position relationship, movement status, etc. between various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] In the related art, the length of the oil pipe from the accumulator to the rod chamber or rodless chamber of the working cylinder is relatively long, and the pipe length has a greater impact on the damping. Therefore, the interconnected suspension has a technical problem of poor damping adjustment performance. The embodiment of the present application provides a vehicle suspension assembly, a vehicle suspension system and a vehicle, which can at least solve the technical problem of poor adjustment performance of the interconnected suspension to a certain extent.

[0042] The present 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 a vehicle body and includes a hydraulic cylinder 110 , a first pipe 120 , a second pipe 130 , a plurality of accumulators 140 , a plurality of damping valves 150 and a first switch valve 160 .

[0044] The hydraulic cylinder 110 may include a cylinder barrel and a piston rod, wherein a portion of the piston rod is located in the cylinder barrel and forms a rod cavity and a rodless cavity with the cylinder barrel. When the vehicle suspension assembly 100 is used, the cylinder barrel may be fixedly connected to the control arm of the wheel, the piston rod may be fixedly connected to the vehicle frame, and a shock-absorbing spring or other structure may be disposed outside the cylinder barrel and the piston rod. The structure and installation method of the hydraulic cylinder 110 are various and are known to those skilled in the art, and will not be described in detail here. The hydraulic cylinder 110 and the spring or other components disposed outside the hydraulic cylinder 110 may form a shock absorber of the vehicle to reduce vibration of the vehicle.

[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 component 100 located on the opposite side of the coaxial axis with the vehicle suspension component 100, and the other end of the second pipe 130 of the vehicle suspension component 100 located on the same side of the different axis with the vehicle suspension component 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 component 100 located on the opposite side of the coaxial axis with the vehicle suspension component 100.

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

[0047] That is, the other end of the second pipe 130 has two interfaces, one end of the first pipe 120 is connected to the rod chamber of the hydraulic cylinder 110, and the other end is connected to one of the interfaces of the other end of the second pipe 130 of the vehicle suspension assembly 100 on the coaxial opposite side; one end of the second pipe 130 is connected to the rodless chamber of the hydraulic cylinder 110, one of the interfaces of the other end is connected to one of the interfaces of the other end of the second pipe 130 of the vehicle suspension assembly 100 on the same side of the different axis, and the other interface is connected to the other end of the first pipe 120 of the vehicle suspension assembly 100 on the coaxial opposite side. After such a design, the vehicle suspension system 1000 of the present application is interconnected front and back, and left and right.

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

[0049] A plurality of accumulators 140 are respectively installed on the first pipeline 120 and the second pipeline 130; a plurality of damping valves 150 are respectively installed on the first pipeline 120 and the second pipeline 130; a first switch valve 160 is installed on the first pipeline 120, and along the oil inlet direction of the rod chamber, the first switch valve 160, the accumulator 140 and the damping valve 150 on the first pipeline 120 are arranged in sequence.

[0050] The number of accumulators 140 is two or more, and the accumulators 140 are installed on both the first pipeline 120 and the second pipeline 130, that is, there is at least one accumulator 140 on each of the first pipeline 120 and the second pipeline 130. Similarly, the number of damping valves 150 is two or more, and the damping valves 150 are installed on both the first pipeline 120 and the second pipeline 130, that is, there is at least one damping valve 150 on each of the first pipeline 120 and the second pipeline 130. The first switch valve 160 is set at least on the first pipeline 120, and the first switch valve 160 may be installed on the second pipeline 130, or may not be installed, which is not limited in this application.

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

[0052] The first pipe 120 and the second pipe 130 of the vehicle suspension assembly 100 are both provided with an accumulator 140, so that the distance from the accumulator 140 to the hydraulic cylinder 110 is shortened, 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 the pipe length on the damping, facilitates the adjustment of the damping of the vehicle suspension assembly 100, and has better damping adjustment performance.

[0053] The arrangement of the first switch valve 160 on the first pipeline 120 allows the vehicle suspension system 1000 having the vehicle suspension component 100 to close the switch valve according to the vehicle operating conditions, so that the vehicle suspension system 1000 closes the left and right interconnections and maintains the front and rear interconnections, so that one side of the rod chamber of the hydraulic cylinder 110 of each vehicle suspension component 100 is connected to at least one accumulator 140, and the accumulator 140 without a rod chamber can be shared front and back, and a plurality of accumulators 140 are connected in total. Since the left and right interconnections are released, the coupled anti-roll capability is weakened, and at the same time, the volume of the accumulator 140 with a rod chamber becomes smaller, and the restoring damping force at a large stroke is reduced due to the reduced gradient of the pressure difference in the rod chamber. Such a design can increase the rapid ground contact of the wheels and reduce the change in the vehicle's attitude angle.

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

[0055] That is, the damping valve 150 on the second pipeline 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 opened, and along the oil outlet direction of the rod chamber, the one-way damping valve 150 of 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 opened, and along the oil inlet direction of the rodless chamber, the one-way damping valve 150 of 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 opened, and 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 opened, and along the oil inlet direction of the rodless chamber, the one-way valve on the second flow channel 170g is closed.

[0058] This design enables the damping valves 150 on the rod chamber and the rodless chamber of the hydraulic cylinder 110 to be reversely connected to each other, thereby achieving the required asymmetry between the restoring (tension) damping and the compression damping. Specifically, after such design, when the suspension is stretched, the volume of the rod chamber becomes smaller, and the oil volume of the rodless working cylinder becomes larger, while the one-way valve of the one-way damping valve 150 for oil outlet from the rod chamber (that is, the one-way valve on the first pipeline 120) is closed, and the one-way valve of the one-way damping valve 150 for oil inlet from the rodless chamber (that is, the one-way valve on the second pipeline 130) is also closed, and the oil can only pass through two throttle valves (that is, the throttle valve on the first pipeline 120 and the throttle valve on the second pipeline 130), the throttling pressure difference is large, and the restoring damping force is large; conversely, when the suspension is compressed, the volume of the rod chamber becomes larger, and the oil volume of the rodless working cylinder becomes smaller, while the one-way valve for oil inlet from the rod chamber (that is, the one-way valve on the first pipeline 120) is open, and the one-way valve for oil outlet from the rodless chamber (that is, the one-way valve on the second pipeline 130) is also open, and the oil passes mostly through the one-way valves, the throttling pressure difference is small, and the compression damping force is small. This will enable the vehicle's suspension system to be soft and vibration-isolated during compression, while having relatively large damping during rebound, so as to reduce the amplitude of vehicle posture changes, absorb impact energy, and attenuate vibrations. That is, it will reduce the vibrations and bumps felt by passengers during vehicle driving and improve 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 the first conduit 120 and the second conduit 130 , and the first switch valve 160 , the accumulator 140 and the damping valve 150 are all mounted on the valve body 170 .

[0060] The valve body 170 is provided with a flow channel and various ports connected to the flow channel, and the combination of these flow channels and ports can form the first pipeline 120 and the second pipeline 130. In this design, the functions of the first pipeline 120 and the second pipeline 130 are integrated on the same valve body 170, and the first pipeline 120 and the second pipeline 130 do not need to be separately provided, which will help reduce the number of parts of the vehicle suspension assembly 100, and the first switch valve 160, the accumulator 140 and the damping valve 150 are installed on the valve body 170, which improves the integration of the vehicle suspension assembly 100. After such a design, the first pipeline 120 and the second pipeline 130 are both integrated on the valve body 170, and the valve bodies 170 can be connected to each other through interconnecting pipelines to achieve front-to-back and left-to-right interconnection, so that the valve body 170 can be arranged close to the hydraulic cylinder 110, so that the distance between the accumulator 140 on the valve body 170 and the hydraulic cylinder 110 is shorter, reducing the influence of the pipeline length on the damping, which is beneficial to the adjustment of the damping of the vehicle suspension assembly 100, and the damping adjustment performance is better. The accumulator 140 is arranged on the first pipeline 120 and the second pipeline 130 of the vehicle suspension assembly 100, and the accumulators 140 on the two pipelines are installed on the same valve body 170, so that the distance from the accumulator 140 to the rod chamber and the rodless chamber of the hydraulic cylinder 110 is shortened and close to the same length, which helps to reduce the influence of the pipeline length on the damping, which is beneficial to the adjustment of the damping of the vehicle suspension assembly 100, and the damping adjustment performance is better.

[0061] In some embodiments, the valve body 170 is fixedly mounted on the front suspension shaft or the rear suspension shaft of the vehicle, and 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 pipeline length on the damping, and is beneficial to the adjustment of the damping of the vehicle suspension assembly 100, and the damping adjustment performance is better.

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

[0063] In some embodiments, the valve bodies 170 are connected via a first interconnected pipe 200 and a second interconnected pipe 300 .

[0064] In some embodiments, the valve body 170 is provided with 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, and is also provided with 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 pipeline 130 of the vehicle suspension component 100 located on the opposite side of the coaxial axis with the vehicle suspension component 100, and the second oil port 170c is connected to the 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 pipeline 120 of the vehicle suspension component 100 located on the opposite side of the same axis as the vehicle suspension component 100, and the fifth oil port 170j of the second pipeline 130 of the vehicle suspension component 100 located on the same side of the different axis as the vehicle suspension component 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 switch valve 160 is installed in the switch valve mounting port 170f.

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

[0066] The accumulator 140 is installed in the first accumulator installation port 170e and the second accumulator installation port 170l. The accumulator 140 installed in the first accumulator installation port 170e is connected to the first flow channel 170a, and the accumulator 140 installed in the second accumulator installation port 170l is connected to the second flow channel 170g. The damping valve 150 is installed in the first damping valve installation port 170d and the second damping valve installation port 170k. The damping valve 150 installed in the first damping valve installation port 170d is connected to the first flow channel 170a, and the damping valve 150 installed in the second damping valve installation port 170k is connected to the second flow channel 170g. The first switch valve 160 is installed in the switch valve installation port 170f and is connected to the first flow channel 170a. The switch valve controls the on-off of the first flow channel 170a. In some embodiments, the switch valve is an electromagnetic switch valve.

[0067] The first oil port 170b can be connected to the fourth oil port 170i of the second pipe 130 of the vehicle suspension component 100 located on the coaxial opposite side of the vehicle suspension component 100 through an oil pipe or the like. The third oil port 170h, the fourth oil port 170i and the fifth oil port 170j can also be connected to the rodless chamber of the hydraulic cylinder 110, the first oil port 170b of the first pipe 120 of the vehicle suspension component 100 located on the coaxial opposite side of the vehicle suspension component 100, and the fifth oil port 170j of the second pipe 130 of the vehicle suspension component 100 located on the same side of the vehicle suspension component 100 on the different axis through oil pipes.

[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 which are connected in sequence, the first branch channel 170a1 and the third branch channel 170a3 are arranged in parallel, the second branch channel 170a2 is arranged at one end of the first branch channel 170a1 and the third branch channel 170a3, connected to the first branch channel 170a1 and the third branch channel 170a3, and 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 arranged at one end of the first branch channel 170a1 away from the second branch channel 170a2, the second oil port 170c is arranged at one end of the third branch channel 170a3 away from the second branch channel 170a2, the switch valve installation port 170f is arranged on the first branch channel 170a1, and the first accumulator installation port 170e and the first damping valve installation port 170d are both arranged at one 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 branch channel 170g1, a fifth branch channel 170g2 and a sixth branch channel 170g3 which are connected in sequence, the fourth branch channel 170g1 and the sixth branch channel 170g3 are arranged in parallel, the fifth branch channel 170g2 is arranged at one end of the fourth branch channel 170g1 and the sixth branch channel 170g3, connected to the fourth branch channel 170g1 and the sixth branch channel 170g3, and the fifth branch channel 170g2 is perpendicular to the fourth branch channel 170g1 and the sixth branch channel 170g3. The fourth oil port 170i is arranged at one end of the fourth branch channel 170g1 away from the fifth branch channel 170g2, the third oil port 170h is arranged at one end of the sixth branch channel 170g3 away from the fifth branch channel 170g2, the second damping valve installation port 170k is arranged on the sixth branch channel 170g3, and the fifth oil port 170j and the second accumulator installation port 170l are both arranged at one 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 surface 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 in sequence.

[0071] The first oil port 170b and the fourth oil port 170i are respectively used to connect with the second pipe 130 and the first pipe 120 of the coaxial opposite side vehicle suspension assembly 100. After such design, the first oil port 170b and the fourth oil port 170i are located on the same end surface, which facilitates the connection of the vehicle suspension assembly 100 with the vehicle suspension of the coaxial opposite side vehicle suspension assembly 100. 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 second oil port 170c and the third oil port 170h are located on the same end surface, which facilitates the connection of 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, so 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, so that 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 switch valve mounting port 170f and the first damping valve mounting port 170d are opened on the same end surface of the valve body 170; the second damping valve mounting port 170k and the fifth oil port 170j are opened on the same end surface of the valve body 170; the first accumulator mounting port 170e and the second accumulator mounting port 170l are opened on the same end surface of the valve body 170; the second damping valve mounting port 170k and the first switch valve mounting port 170f are arranged opposite to each other; the first damping valve mounting port 170d and the fifth oil port 170j are arranged opposite to each other; the first accumulator mounting port 170e and the first oil port 170b are arranged opposite to each other; the second accumulator mounting port 170l and the third oil port 170h are arranged opposite to each other.

[0073] like Figure 2 and Figure 3As shown, in some embodiments, the valve body 170 is in a rectangular parallelepiped shape, the first oil port 170b, the second oil port 170c, the fourth oil port 170i and the third oil port 170h are provided on the upper end surface of the valve body 170, the first switch valve 160 installation port 170f and the first damping valve installation port 170d are provided on the left end surface of the valve body 170, the second damping valve installation port 170k and the fifth oil port 170j are provided on the right end surface of the valve body 170, and the first accumulator installation port 170e and the second accumulator installation port 170l are provided on the lower end surface of the valve body 170. The various ports are provided on different end surfaces of the valve body 170, and the positions of the various end surfaces of the valve body 170 are utilized, so that interference and the like can be avoided when the various components are connected to the valve body 170. The second damping valve mounting port 170k is arranged opposite to the first switch valve mounting port 170f; the first damping valve mounting port 170d is arranged opposite to the fifth oil port 170j; the first accumulator mounting port 170e is arranged opposite to the first oil port 170b; the second accumulator mounting port 170l is arranged opposite to the third oil port 170h, which can facilitate the processing of the valve body 170 by a lathe, etc., reduce the number of positioning times and drilling times of the valve body 170, and improve the processing efficiency of the valve body 170.

[0074] Based on the same inventive concept, the embodiment of the present application further provides a vehicle suspension system 1000, comprising:

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

[0076] The first interconnected pipe 200 connects the other end of the first pipe 120 of one of the two coaxial vehicle suspension components 100 to the other end of the second pipe 130 of the other vehicle suspension component 100;

[0077] The second interconnected pipe 300 is located in two vehicle suspension components 100 on different axes, and the other end of the second pipe 130 of one vehicle suspension component 100 is connected to the other end of the second pipe 130 of the other vehicle suspension component 100.

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

[0079] Four first interconnected pipes 200 are provided, one of which connects the first oil port 170b of the valve body 170 of the left front vehicle suspension component 100 with the fourth oil port 170i of the valve body 170 of the right front vehicle suspension component 100. One of which connects the fourth oil port 170i of the valve body 170 of the left front vehicle suspension component 100 with the first oil port 170b of the valve body 170 of the right front vehicle suspension component 100. One of which connects the first oil port 170b of the valve body 170 of the left rear vehicle suspension component 100 with the fourth oil port 170i of the valve body 170 of the right rear vehicle suspension component 100. Another connects the fourth oil port 170i of the valve body 170 of the left rear vehicle suspension component 100 with the first oil port 170b of the valve body 170 of the right rear vehicle suspension component 100.

[0080] Two second interconnecting pipes 300 are provided, one of which connects the fifth oil port 170j of the valve body 170 of the left front vehicle suspension component 100 with the fifth oil port 170j of the valve body 170 of the left rear vehicle suspension component 100, and the other connects the fifth oil port 170j of the valve body 170 of the right front vehicle suspension component 100 with the fifth oil port 170j of the valve body 170 of the right rear vehicle suspension component 100.

[0081] With such a design, the vehicle suspension system 1000 can close the first switch valve 160 when traveling on a rough road such as a cobblestone road, so that the vehicle suspension system 1000 closes the left and right interconnection and maintains the front and rear interconnection, so that one side of the rod chamber of the hydraulic cylinder 110 of each vehicle suspension component 100 is connected to at least one accumulator 140, and the accumulator 140 without a rod chamber can be shared front and back, and a plurality of accumulators 140 are connected in total. Since the left and right interconnection is released, the coupled anti-roll capability is weakened, and at the same time, the volume of the accumulator 140 with the rod chamber becomes smaller, and the restoring damping force at a large stroke is reduced due to the reduced gradient of the pressure difference in the rod chamber. Such a design can increase the rapid ground 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 switch valve 400 , which is installed on the second interconnected pipeline 300 .

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

[0084] Based on the same inventive concept, an embodiment of the present application further provides a vehicle, comprising the above-mentioned vehicle suspension assembly 100 or the above-mentioned vehicle suspension system 1000 .

[0085] Since the vehicle includes the above-mentioned vehicle suspension assembly 100 or the above-mentioned vehicle suspension system 1000, it naturally has all the beneficial effects of the vehicle suspension assembly 100 or the vehicle suspension system 1000, which will not be elaborated here.

[0086] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means 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 application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0087] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

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

Claims

1. A vehicle suspension assembly, characterized in that: Installed on the vehicle body, including: Hydraulic cylinder (110); A first pipe (120), one end of which is connected to the rod chamber of the hydraulic cylinder (110); A second pipe (130), one end of which is connected to the rodless chamber of the hydraulic cylinder (110), and the other end of which is respectively used to connect to the other end of the first pipe (120) of the vehicle suspension component (100) located on the coaxial opposite side of the vehicle suspension component (100) and the other end of the second pipe (130) of the vehicle suspension component (100) located on the same side of the vehicle suspension component (100) but not on the same axis, and 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 component (100) located on the coaxial opposite side of the vehicle suspension component (100); A plurality of accumulators (140) are respectively installed on the first pipeline (120) and the second pipeline (130); A plurality of damping valves (150) are respectively installed on the first pipeline (120) and the second pipeline (130); The first switch valve (160) is installed on the first pipeline (120). Along the oil inlet direction of the rod chamber, the first switch valve (160), the accumulator (140) and the damping valve (150) on the first pipeline (120) are arranged in sequence.

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; In addition, along the oil outlet direction of the rodless chamber, the one-way damping valve (150) on the second flow channel (170g) is opened, and along the oil inlet direction of the rodless chamber, the one-way damping valve (150) on the second flow channel (170g) is throttled.

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

4. The vehicle suspension assembly according to any one of claims 1 to 3, characterized in that: The vehicle suspension assembly (100) further comprises a valve body (170), wherein the valve body (170) forms the first conduit (120) and the second conduit (130), and the first switch 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) is provided with: 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); 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 communicate with a fourth oil port (170i) of a second pipe (130) of a vehicle suspension component (100) located on the coaxial opposite side of the vehicle suspension component (100), and the second oil port (170c) is communicated with a 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 communicate with the rodless chamber of the hydraulic cylinder (110), the first oil port (170b) of the first pipe (120) of the vehicle suspension component (100) located on the opposite side of the same axis as the vehicle suspension component (100), and the fifth oil port (170j) of the second pipe (130) of the vehicle suspension component (100) located on the same side of the different axis as the vehicle suspension component (100); The accumulator (140) is installed in the first accumulator installation port (170e) and the second accumulator installation port (170l), the damping valve (150) is installed in the first damping valve installation port (170d) and the second damping valve installation port (170k), and the first switch valve (160) is installed in the switch valve installation 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 opened on the same end surface 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 in sequence.

7. The vehicle suspension system according to claim 6, characterized in that: The first switch valve installation port (170f) and the first damping valve installation port (170d) are opened on the same end surface of the valve body (170); the second damping valve installation port (170k) and the fifth oil port (170j) are opened on the same end surface of the valve body (170); the first accumulator installation port (170e) and the second accumulator installation port (170l) are opened on the same end surface of the valve body (170); The second damping valve installation port (170k) is arranged opposite to the first switch valve installation port (170f); the first damping valve installation port (170d) is arranged opposite to the fifth oil port (170j); the first accumulator installation port (170e) is arranged opposite to the first oil port (170b); and the second accumulator installation port (170l) is arranged opposite to the third oil port (170h).

8. A vehicle suspension system, characterized in that: include: Four vehicle suspension components (100) according to any one of claims 1 to 7 arranged in an array; A first interconnected pipe (200) connects the other end of the first pipe (120) of one of the two coaxial vehicle suspension components (100) to the other end of the second pipe (130) of the other vehicle suspension component (100); The second interconnected pipe (300) is located in two vehicle suspension components (100) with different axes, and the other end of the second pipe (130) of one vehicle suspension component (100) is connected to the other end of the second pipe (130) of the other vehicle suspension component (100).

9. The vehicle suspension system according to claim 8, characterized in that: The vehicle suspension system (1000) further comprises: The second switch valve (400) is installed on the second interconnected pipeline (300).

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

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