Control arm assembly, suspension system and vehicle

Abstract

The invention relates to the technical field of control arms, and discloses a control arm assembly, a suspension system and a vehicle, the control arm assembly comprises a control arm body and a supporting frame, the control arm body comprises a first cross arm, a second cross arm and a connecting piece, and the first cross arm and the second cross arm are oppositely arranged and spaced in the length direction of the vehicle; the connecting piece is fixedly connected between the first cross arm and the second cross arm, the end, away from the connecting piece, of the first cross arm is provided with a first installation part fixedly connected with an auxiliary frame of the vehicle, and the end, away from the connecting piece, of the second cross arm is provided with a second installation part fixedly connected with the auxiliary frame of the vehicle. The end, away from the connecting piece, of the supporting frame is provided with a third mounting part, the third mounting part is fixedly connected with a hub support of the vehicle, and the supporting frame extends upwards in the height direction of the vehicle so that the supporting frame can support the hub support in the height direction of the vehicle. Therefore, the bearing capacity of the control arm assembly is improved.

Description

Technical Field

[0001] The present application relates to the technical field of control arms, and in particular to a control arm assembly, a suspension system and a vehicle. Background Art

[0002] With the rapid development of new energy vehicles, the weight of the vehicle is getting heavier and the chassis layout space is getting smaller, which puts higher performance requirements on the suspension system. Among them, the control arm is an important part of the suspension system, and its design quality directly affects the performance of the suspension system.

[0003] In the related technology, in order to improve the performance of the suspension system, some car models adopt multi-link suspension, among which the control arm, as the main guiding mechanism and force transmission mechanism of the multi-link suspension, needs to withstand large torque and load. However, the current control arm structure has insufficient bearing capacity and it is difficult to meet the bearing requirements of new energy vehicles. Summary of the invention

[0004] The present application provides a control arm assembly, a suspension system and a vehicle, which solve the current technical problem of insufficient load-bearing capacity of the control arm assembly and improve the stability and reliability of the control arm assembly.

[0005] In order to achieve the above objectives, the main technical solutions adopted in this application include:

[0006] In a first aspect, an embodiment of the present application provides a control arm assembly, which is used for a vehicle, and includes:

[0007] A control arm body, the control arm body comprising a first cross arm, a second cross arm and a connecting piece, the first cross arm and the second cross arm are arranged opposite to each other and spaced apart along the length direction of the vehicle, the connecting piece is fixedly connected between the first cross arm and the second cross arm, one end of the first cross arm away from the connecting piece has a first mounting portion fixedly connected to a sub-frame of the vehicle, and one end of the second cross arm away from the connecting piece has a second mounting portion fixedly connected to the sub-frame of the vehicle;

[0008] The support frame is fixedly mounted on the connecting member, and one end of the support frame away from the connecting member has a third mounting portion, the third mounting portion is fixedly connected to the wheel hub bracket of the vehicle, and the support frame extends upward along the height direction of the vehicle so that the support frame supports the wheel hub bracket in the height direction of the vehicle.

[0009] According to the control arm assembly proposed in the first aspect of the present application, the integration of the bearing capacity of the control arm assembly in the height direction, length direction and width direction of the vehicle is achieved through the coordinated use of the first cross arm, the second cross arm and the support frame, which simplifies the structural design of the control arm assembly. At the same time, a two-force rod is equivalent to the first mounting part and the third mounting part, and a two-force rod is equivalent to the second mounting part and the third mounting part, thereby realizing a three-point composite structural design of the control arm assembly, which is beneficial to improving the stability and reliability of the control arm assembly, and further improving the bearing capacity of the control arm assembly.

[0010] Optionally, the control arm assembly further includes: a support plate, and the support plate is fixedly connected to the support frame and the control arm body.

[0011] Optionally, the support plate and the support frame jointly form a first installation cavity.

[0012] Optionally, the support plate includes a first mounting plate and a second mounting plate connected to each other, the first mounting plate is fixedly connected to the support frame and together form a first mounting cavity, the second mounting plate is fixedly connected to the connecting member, and a portion of the outer surface of the connecting member is covered by the second mounting plate.

[0013] Optionally, the second mounting plate has a flange, and along the height direction of the vehicle, the flange is located below the support frame, and the flange is fixedly connected to the support frame.

[0014] Optionally, the control arm assembly also includes: a mounting seat, which is located on a side of the first mounting plate away from the support frame, and a portion of the mounting seat is fixedly connected to the first mounting plate, the mounting seat is used to fix a buffer block, and the buffer block is suitable for abutting against the vehicle frame when the wheel hub bracket jumps along the height direction of the vehicle.

[0015] Optionally, the mounting seat and the support frame jointly form a second mounting cavity.

[0016] Optionally, the mounting seat has a mounting plane, the buffer block is fixed on the mounting plane, the mounting plane extends along the length direction of the vehicle, and the mounting plane is located below the first horizontal plane and forms a first angle with the first horizontal plane, the first angle is 15°-20°, wherein the mounting plane and the first mounting plate form a boundary line extending along the length direction of the vehicle, and the first horizontal plane horizontally passes through the boundary line.

[0017] Optionally, along the height direction of the vehicle, the first mounting plate has a first end and a second end, wherein the second end is closer to the connecting member than the first end, and the size of the first mounting plate in the length direction of the vehicle gradually increases from the first end to the second end.

[0018] In a second aspect, an embodiment of the present application provides a suspension system including the control arm assembly in the embodiment of the first aspect.

[0019] According to the suspension system proposed in the second aspect of the present application, by providing the above-mentioned control arm assembly, through the coordinated use of the first cross arm, the second cross arm and the support frame, the integration of the bearing capacity of the control arm assembly in the height direction, length direction and width direction of the vehicle is achieved, and the structural design of the control arm assembly is simplified. At the same time, the first mounting part and the third mounting part are equivalent to a two-force rod, and the second mounting part and the third mounting part are equivalent to a two-force rod, thereby realizing the three-point composite structural design of the control arm assembly, which is beneficial to improve the stability and reliability of the control arm assembly, and then improve the bearing capacity of the control arm assembly.

[0020] In a third aspect, an embodiment of the present application provides a vehicle including the suspension system in the embodiment of the second aspect.

[0021] According to the vehicle proposed in the third aspect of the embodiment of the present application, by providing the above-mentioned suspension system, the integration of the bearing capacity of the control arm assembly in the height direction, length direction and width direction of the vehicle is achieved through the coordinated use of the first cross arm, the second cross arm and the support frame, and the structural design of the control arm assembly is simplified. At the same time, the first mounting part and the third mounting part are equivalent to a two-force rod, and the second mounting part and the third mounting part are equivalent to a two-force rod, thereby realizing a three-point composite structural design of the control arm assembly, which is beneficial to improving the stability and reliability of the control arm assembly, and further improving the bearing capacity of the control arm assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 An assembly diagram of a control arm assembly, a subframe and a wheel hub bracket provided for one embodiment of the present application;

[0024] Figure 2 A schematic diagram of a control arm assembly provided by one embodiment of the present application;

[0025] Figure 3 A schematic diagram of a control arm assembly provided in accordance with another embodiment of the present application;

[0026] Figure 4 A schematic diagram of a control arm assembly provided in accordance with yet another embodiment of the present application.

[0027] [Description of Reference Numerals]

[0028] Control arm assembly 100;

[0029] Control arm body 1; first cross arm 11; first mounting portion 111; second cross arm 12; second mounting portion 121; connecting member 13;

[0030] Support frame 2; third mounting portion 21;

[0031] Support plate 3; first mounting plate 31; second mounting plate 32; flange 321;

[0032] Mounting seat 4; second mounting cavity 41; mounting plane 42;

[0033] Buffer block 5;

[0034] Subframe 200;

[0035] Wheel hub bracket 300;

[0036] The length direction of the vehicle is X; the height direction of the vehicle is Y. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0038] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0039] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0040] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0042] The term "multiple" as used in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple sheets" refers to more than two sheets (including two sheets).

[0043] It should be noted that with the rapid development of new energy vehicles, the weight of the vehicle is getting heavier and heavier, and the chassis layout space is getting smaller and smaller, which puts higher performance requirements on the suspension system. Among them, the control arm is an important part of the suspension system, and its design quality directly affects the performance of the suspension system.

[0044] In the related technology, in order to improve the performance of the suspension system, some vehicle models adopt multi-link suspension, among which the control arm, as the main guiding mechanism and force transmission mechanism of the multi-link suspension, needs to withstand large torque and load. However, the current control arm structure usually uses bushings as the load-bearing parts in the height direction of the vehicle, which leads to insufficient overall load-bearing capacity of the control arm structure, which is difficult to meet the load-bearing requirements of new energy vehicles.

[0045] Based on this, the present application proposes a control arm assembly 100. Through the coordinated use of the first cross arm 11, the second cross arm 12 and the support frame 2, the integration of the bearing capacity of the control arm assembly 100 in the vehicle height direction, length direction and width direction is achieved, and the structural design of the control arm assembly 100 is simplified. At the same time, the first mounting part 111 and the third mounting part 21 are equivalent to a two-force rod, and the second mounting part 121 and the third mounting part 21 are equivalent to a two-force rod, thereby realizing the three-point composite structural design of the control arm assembly 100, which is beneficial to improve the stability and reliability of the control arm assembly 100, and further improve the bearing capacity of the control arm assembly 100.

[0046] like Figure 1-Figure 4 As shown, the control arm assembly 100 according to the first embodiment of the present application includes: a control arm body 1 and a support frame 2.

[0047] Specifically, if Figure 1 As shown, the control arm assembly 100 is applied to the suspension system of a vehicle, wherein the control arm body 1 in the control arm assembly 100 includes a first cross arm 11, a second cross arm 12 and a connecting member 13. It should be noted that the first cross arm 11 and the second cross arm 12 are arranged along the width direction of the vehicle. For example, the first cross arm 11 and the second cross arm 12 can extend along the width direction of the vehicle, or the extension direction of the first cross arm 11 and the second cross arm 12 is provided with a certain angle with the width direction of the vehicle. Further, along the length direction X of the vehicle, the first cross arm 11 and the second cross arm 12 are arranged relative to each other and spaced apart, and the connecting member 13 is fixedly connected between the first cross arm 11 and the second cross arm 12. For example, the first cross arm 11, the second cross arm 12 and the connecting member 13 can form a U-shaped control arm body 1. Such a configuration can provide an avoidance space for the installation of the subframe 200 to avoid interference during the assembly process.

[0048] Furthermore, one end of the first cross arm 11 away from the connecting member 13 has a first mounting portion 111 fixedly connected to the subframe 200 of the vehicle, and one end of the second cross arm 12 away from the connecting member 13 has a second mounting portion 121 fixedly connected to the subframe 200 of the vehicle. That is to say, the first cross arm 11 is fixedly connected to the subframe 200 through the first mounting portion 111, and the second cross arm 12 is fixedly connected to the subframe 200 through the second mounting portion 121. In this configuration, since the first cross arm 11 and the second cross arm 12 are arranged along the width direction of the vehicle, the first cross arm 11 and the second cross arm 12 can bear the force transmitted by the subframe 200 along the width direction of the vehicle. At the same time, since the first cross arm 11 and the second cross arm 12 fix the subframe 200 along the length direction X of the vehicle, they can bear the force and moment transmitted by the subframe 200 along the length direction X of the vehicle, that is, the integration of the bearing capacity of the control arm body 1 in the length direction and width direction of the vehicle is realized.

[0049] Further, the support frame 2 is fixedly mounted on the connecting member 13, and one end of the support frame 2 away from the connecting member 13 has a third mounting portion 21, the third mounting portion 21 is fixedly connected to the wheel hub bracket 300 of the vehicle, and the support frame 2 extends upward along the height direction Y of the vehicle, so that the support frame 2 supports the wheel hub bracket 300 in the height direction Y of the vehicle. Figure 2Taking the placement direction shown as an example, the support frame 2 supports the wheel hub bracket 300 upward in the height direction Y of the vehicle, wherein the support frame 2 can extend upward along the height direction Y of the vehicle, or the upward extension direction of the support frame 2 can be arranged at a certain angle with the height direction Y of the vehicle, so as to ensure that the support frame 2 supports the wheel hub bracket 300 upward in the height direction Y of the vehicle. In this way, the support frame 2 supports the wheel hub bracket 300 in the height direction Y of the vehicle, so that the control arm assembly 100 can bear the force transmitted by the vehicle body in the height direction Y of the vehicle, thereby realizing the integration of the bearing capacity of the control arm assembly 100 in the height direction, length direction and width direction of the vehicle. Compared with the traditional method of setting multiple control arms to bear the force separately, the number of parts is reduced, the structure of the control arm assembly 100 is simplified, and the structure of the control arm assembly 100 is simpler, which is conducive to cost saving. At the same time, compared with the traditional bushing flexible support, the support frame 2 as a rigid support member is conducive to improving the bearing capacity of the control arm assembly 100 in the height direction of the vehicle.

[0050] It should be noted that, in some embodiments of the present application, the control arm assembly 100 is constructed as a three-point composite structure design, wherein a two-force rod structure is formed between the first mounting portion 111 and the third mounting portion 21 of the control arm assembly 100, and similarly, a two-force rod structure is also formed between the second mounting portion 121 and the third mounting portion 21 of the control arm assembly 100, that is, the coordinated use of the first mounting portion 111, the second mounting portion 121, and the third mounting portion 21 is equivalent to forming two two-force rod structures. With such a configuration, the control arm assembly 100 has a stronger ability to resist deformation when subjected to force, thereby being able to withstand greater force, which is beneficial to improving the stability and reliability of the control arm assembly 100, and further improving the load-bearing capacity of the control arm assembly 100, so that it can meet the use requirements of heavier new energy vehicles.

[0051] According to the control arm assembly 100 proposed in the first aspect of the embodiment of the present application, the first cross arm 11, the second cross arm 12 and the support frame 2 are used in coordination to achieve the integration of the bearing capacity of the control arm assembly 100 in the height direction, length direction and width direction of the vehicle, thereby simplifying the structural design of the control arm assembly 100. At the same time, a two-force rod is equivalent to the first mounting portion 111 and the third mounting portion 21, and a two-force rod is equivalent to the second mounting portion 121 and the third mounting portion 21, thereby achieving a three-point composite structural design of the control arm assembly 100, which is beneficial to improving the stability and reliability of the control arm assembly 100, and further improving the bearing capacity of the control arm assembly 100.

[0052] In some embodiments of the present application, the first mounting portion 111 and the second mounting portion 121 of the control arm body 1 are fixedly connected to the sub-frame 200 via a bushing, and the third mounting portion 21 of the support frame 2 is fixedly connected to the wheel hub bracket 300 via a bushing. In this way, the bushing is used as a flexible kinetic energy absorber to absorb the impact force between the control arm and the sub-frame 200 and the wheel hub bracket 300, which is beneficial to improving the stability of the suspension system.

[0053] In some embodiments of the present application, the control arm body 1 needs to withstand large-load lateral forces and moments, so the control arm structure can be made of rods, tubes or stamped sheet metal materials, which simplifies the production process and reduces production costs.

[0054] In some embodiments of the present application, Figure 2-Figure 4 As shown, the control arm assembly 100 further includes: a support plate 3 , and the support plate 3 is fixedly connected to the support frame 2 and the control arm body 1 .

[0055] Specifically, a portion of the support plate 3 is fixedly connected to the support frame 2, and the other portion is fixedly connected to the control arm body 1. The fixing connection method of the support plate 3 includes but is not limited to welding. Such a setting is equivalent to connecting a reinforcing plate between the support frame 2 and the control arm body 1, thereby improving the connection strength between the support frame 2 and the control arm body 1, thereby improving the overall strength and rigidity of the control arm assembly 100, which is conducive to further improving the load-bearing capacity of the control arm assembly 100.

[0056] In some embodiments of the present application, the support plate 3 and the support frame 2 together form a first installation cavity.

[0057] Specifically, the support frame 2 includes a first connecting plate, a second connecting plate, and a third connecting plate, wherein the first connecting plate and the third connecting plate are relatively arranged and spaced apart along the length direction X of the vehicle, and the second connecting plate is connected between the first connecting plate and the third connecting plate. Furthermore, a portion of the support plate 3 is relatively arranged with the second connecting plate, and the support plate 3 is fixedly connected to the first connecting plate and the third connecting plate. The first connecting plate, the second connecting plate, the third connecting plate and the support plate 3 jointly form a first mounting cavity. With such an arrangement, while satisfying the supporting capacity of the support frame 2, the weight of the support frame 2 can be reduced by setting the first mounting cavity, which is beneficial to reducing the weight of the control arm assembly 100, thereby improving the lightweight level of the vehicle.

[0058] It should be noted that the support frame 2 may also be provided with other structures, for example, the support plate 3 and the support frame 2 form a cylindrical hollow structure, etc. The specific configuration depends on the actual situation and will not be described one by one here.

[0059] In some embodiments of the present application, Figure 2-Figure 4As shown, the support plate 3 includes a first mounting plate 31 and a second mounting plate 32 connected to each other. The first mounting plate 31 is fixedly connected to the support frame 2 and together form a first mounting cavity. The second mounting plate 32 is fixedly connected to the connecting member 13, and a portion of the outer surface of the connecting member 13 is covered by the second mounting plate 32.

[0060] Specifically, the control arm assembly 100 is Figure 2 Taking the placement direction shown as an example, the support plate 3 includes a first mounting plate 31 and a second mounting plate 32 connected, and the first mounting plate 31 is arranged above the second mounting plate 32, wherein the first mounting plate 31 can extend upward along the height direction Y of the vehicle, or the upward extension direction of the first mounting plate 31 can be provided with a certain angle with the height direction Y of the vehicle. Further, the first mounting plate 31 is fixedly connected to the support frame 2. For example, it is assumed that the support frame 2 includes a first connecting plate, a second connecting plate, and a third connecting plate, wherein, along the length direction X of the vehicle, the first connecting plate and the third connecting plate are relatively arranged and spaced apart, and the second connecting plate is connected between the first connecting plate and the third connecting plate. Further, the first mounting plate 31 is relatively arranged with the second connecting plate, and the first mounting plate 31 is fixedly connected with the first connecting plate and the third connecting plate, so that the first connecting plate, the second connecting plate, the third connecting plate and the first mounting plate 31 jointly form a first mounting cavity, thereby reducing the weight of the support frame 2.

[0061] The second mounting plate 32 is fixedly connected to the connecting member 13, and a portion of the outer surface of the connecting member 13 is covered by the second mounting plate 32. For example, assuming that the connecting member 13 is constructed as a circular tube, a portion of the structure of the second mounting plate 32 is constructed as an arc plate that fits the outer surface of the circular tube, so that the arc plate can cover a portion of the outer surface of the connecting member 13. Furthermore, the connection method between the second mounting plate 32 and the connecting member 13 includes but is not limited to welding. Such a configuration can increase the contact area between the second mounting plate 32 and the connecting member 13, thereby helping to reduce the load at the connection between the second mounting plate 32 and the connecting member 13, and helping to improve the connection strength between the support plate 3 and the support frame 2, thereby reducing the risk of cracking at the connection between the support plate 3 and the support frame 2 due to stress concentration, which is beneficial to further improve the overall strength and rigidity of the control arm assembly 100.

[0062] It should be noted that the covering portion of the second mounting plate 32 on the connecting member 13 is set according to the specific shape of the connecting member 13. For example, if the connecting member 13 is constructed as a hollow tube with a rectangular cross-section, the covering structure of the second mounting plate 32 can be correspondingly provided with a bent plate that fits therewith. The specific setting is based on actual conditions and will not be explained one by one here.

[0063] In some embodiments of the present application, Figure 2-Figure 4As shown, the second mounting plate 32 has a flange 321, and along the height direction Y of the vehicle, the flange 321 is located below the support frame 2, and the flange 321 is fixedly connected to the support frame 2. In other words, a flange 321 structure connected thereto is also provided below the support frame 2, and the flange 321 is fixedly connected to the support frame 2, so that on the one hand, the support frame 2 can be supported from below, thereby playing a supporting role for the support frame 2, and on the other hand, the area of ​​the connection region between the support plate 3 and the support frame 2 can be increased, thereby further improving the connection strength between the two.

[0064] In some embodiments of the present application, Figure 2-Figure 4 As shown, the control arm assembly 100 also includes: a mounting seat 4, which is located on a side of the first mounting plate 31 away from the support frame 2, and a portion of the mounting seat 4 is fixedly connected to the first mounting plate 31, and the mounting seat 4 is used to fix the buffer block 5, and the buffer block 5 is suitable for abutting against the vehicle frame when the wheel hub bracket 300 jumps along the height direction Y of the vehicle.

[0065] Specifically, the control arm assembly 100 also integrates a buffer block 5 installation point, and the buffer block 5 is installed on the mounting seat 4. During the driving of the vehicle, the wheel will jump upward in the height direction Y of the vehicle due to the stimulation of the road surface, thereby driving the hub bracket 300 to jump upward, so that the control arm assembly 100 moves upward as a whole. When the wheel jumps up to a large height, the buffer block 5 abuts against the vehicle frame. On the one hand, this can generate a buffer between the control arm assembly 100 and the frame, thereby reducing the frame vibration, which is beneficial to improving the buffering capacity of the suspension system. At the same time, when the buffer block 5 is compressed, it also has a certain limiting effect to prevent the wheel from jumping up to a large extent and causing greater bumps.

[0066] It should be noted that the mounting base 4 is located on the side of the first mounting plate 31 away from the support frame 2. A part of the mounting base 4 is fixedly connected to the first mounting plate 31, and the other part is fixedly connected to the second mounting plate 32. That is, the force exerted on the mounting base 4 is borne by the support plate 3. Such a configuration can disperse the force exerted on the mounting base 4 to the support plate 3, which is beneficial to reduce stress concentration and thus reduce the risk of the mounting base 4 falling off.

[0067] In some embodiments of the present application, Figure 4 As shown, the mounting seat 4 and the support frame 2 form a second mounting cavity 41 together. That is, the mounting seat 4 and the support plate 3 can form the second mounting cavity 41 together. By providing the second mounting cavity 41, the weight of the mounting seat 4 can be reduced while ensuring the support strength, thereby helping to reduce the weight of the control arm assembly 100, and further helping to improve the lightweight level of the vehicle.

[0068] In some embodiments of the present application, Figure 3As shown, the mounting seat 4 has a mounting plane 42, the buffer block 5 is fixed on the mounting plane 42, the mounting plane 42 extends along the length direction X of the vehicle, and the mounting plane 42 is located below the first horizontal plane and forms a first angle with the first horizontal plane, the first angle is 15°-20°, wherein the mounting plane 42 and the first mounting plate 31 form a boundary line extending along the length direction X of the vehicle, and the first horizontal plane horizontally passes through the boundary line.

[0069] Specifically, the mounting seat 4 is fixedly connected to the first mounting plate 31, and the mounting plane 42 extends along the length direction X of the vehicle. In this way, the mounting plane 42 and the first mounting plate 31 can form a boundary line extending along the length direction X of the vehicle. It can be understood that the boundary line between the mounting plane 42 and the first mounting plate 31 is the connecting line between the two. In some embodiments of the present application, the first horizontal plane horizontally passes through the boundary line. It can be understood that there are many horizontal planes along the height direction Y of the vehicle, but the first horizontal plane is the horizontal plane that horizontally passes through the boundary line. That is to say, the first horizontal plane intersects with the mounting plane 42 and the boundary line. Further, along the height direction Y of the vehicle In the height direction Y, the mounting plane 42 is located below the first horizontal plane and forms a first angle with the first horizontal plane, wherein the first angle can be 15°, 16°, 17°, 18°, 19°, or 20°, and is set according to actual needs. The buffer block 5 is fixed to the mounting plane 42. In this way, when the buffer block 5 abuts against the frame of the vehicle, the mounting seat 4 can withstand the load and impact force from the height direction Y of the vehicle on the one hand, and can also balance the force in the width direction of the vehicle and the moment in the length direction X of the vehicle on the other hand through the mounting seat 4, thereby improving the load-bearing performance of the control arm assembly 100.

[0070] In some embodiments of the present application, the mounting plane 42 may be provided with reinforcing convex ribs or reinforcing concave ribs, so that the rigidity and load-bearing performance of the mounting seat 4 can be further improved.

[0071] In some embodiments of the present application, Figure 2 and Figure 3 As shown, along the height direction Y of the vehicle, the first mounting plate 31 has a first end and a second end, wherein the second end is closer to the connecting member 13 than the first end, and the size of the first mounting plate 31 in the length direction X of the vehicle gradually increases from the first end to the second end.

[0072] Specifically, along the height direction Y of the vehicle, the first end of the first mounting plate 31 is located above the second end. When the force exerted on the mounting seat 4 acts on the first mounting plate 31, the first mounting plate 31 bears the force of the mounting seat 4 along the height direction Y of the vehicle. Since the size (length) of the first mounting plate 31 in the length direction X of the vehicle gradually increases from the first end to the second end, it is beneficial to further disperse the force exerted on the mounting seat 4 to the control arm body 1 through the first mounting plate 31, thereby improving the support effect on the mounting seat 4.

[0073] In a second aspect, an embodiment of the present application provides a suspension system including the control arm assembly 100 in the embodiment of the first aspect.

[0074] According to the suspension system proposed in the second embodiment of the present application, by providing the above-mentioned control arm assembly 100, through the coordinated use of the first cross arm 11, the second cross arm 12 and the support frame 2, the integration of the bearing capacity of the control arm assembly 100 in the height direction, length direction and width direction of the vehicle is achieved, and the structural design of the control arm assembly 100 is simplified. At the same time, the first mounting part 111 and the third mounting part 21 are equivalent to a two-force rod, and the second mounting part 121 and the third mounting part 21 are equivalent to a two-force rod, thereby realizing the three-point composite structural design of the control arm assembly 100, which is beneficial to improve the stability and reliability of the control arm assembly 100, and further improve the bearing capacity of the control arm assembly 100.

[0075] In a third aspect, an embodiment of the present application provides a vehicle including the suspension system in the embodiment of the second aspect.

[0076] According to the vehicle proposed in the third aspect of the embodiment of the present application, by providing the above-mentioned suspension system, the first cross arm 11, the second cross arm 12 and the support frame 2 are used in coordination to achieve the integration of the bearing capacity of the control arm assembly 100 in the height direction, length direction and width direction of the vehicle, thereby simplifying the structural design of the control arm assembly 100. At the same time, a two-force rod is equivalent to the first mounting portion 111 and the third mounting portion 21, and a two-force rod is equivalent to the second mounting portion 121 and the third mounting portion 21, thereby achieving a three-point composite structural design of the control arm assembly 100, which is beneficial to improving the stability and reliability of the control arm assembly 100, and further improving the bearing capacity of the control arm assembly 100.

[0077] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0078] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0079] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

[0080] Although the embodiments of the present application have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A control arm assembly, characterized in that: The control arm assembly is used for a vehicle, and the control arm assembly comprises: A control arm body, the control arm body comprising a first cross arm, a second cross arm and a connecting member, the first cross arm and the second cross arm being arranged opposite to each other and spaced apart along the length direction of the vehicle, the connecting member being fixedly connected between the first cross arm and the second cross arm, the first cross arm having an end away from the connecting member having a first mounting portion fixedly connected to a sub-frame of the vehicle, and the second cross arm having an end away from the connecting member having a second mounting portion fixedly connected to a sub-frame of the vehicle; A support frame, the support frame is fixedly mounted on the connecting member, the support frame has a third mounting portion at one end away from the connecting member, the third mounting portion is fixedly connected to the wheel hub bracket of the vehicle, and the support frame extends upward along the height direction of the vehicle so that the support frame supports the wheel hub bracket in the height direction of the vehicle.

2. The control arm assembly according to claim 1, characterized in that: The control arm assembly further includes a support plate, and the support plate is fixedly connected to the support frame and the control arm body.

3. The control arm assembly according to claim 2, characterized in that: The support plate and the support frame together form a first installation cavity.

4. The control arm assembly according to claim 3, characterized in that: The support plate includes a first mounting plate and a second mounting plate connected to each other. The first mounting plate is fixedly connected to the support frame and together form the first mounting cavity. The second mounting plate is fixedly connected to the connecting member, and a portion of the outer surface of the connecting member is covered by the second mounting plate.

5. The control arm assembly according to claim 4, characterized in that: The second mounting plate has a flange, and along the height direction of the vehicle, the flange is located below the support frame, and the flange is fixedly connected to the support frame.

6. The control arm assembly according to claim 4, characterized in that: The control arm assembly also includes: a mounting seat, which is located on a side of the first mounting plate away from the support frame, and a portion of the mounting seat is fixedly connected to the first mounting plate, and the mounting seat is used to fix a buffer block, and the buffer block is suitable for abutting against the frame of the vehicle when the wheel hub bracket jumps along the height direction of the vehicle.

7. The control arm assembly according to claim 6, characterized in that: The mounting seat and the support frame together form a second mounting cavity.

8. The control arm assembly according to claim 6, characterized in that: The mounting seat has a mounting plane, the buffer block is fixed on the mounting plane, the mounting plane extends along the length direction of the vehicle, and the mounting plane is located below a first horizontal plane and forms a first angle with the first horizontal plane, the first angle is 15°-20°, wherein the mounting plane and the first mounting plate form a boundary line extending along the length direction of the vehicle, and the first horizontal plane horizontally passes through the boundary line.

9. The control arm assembly according to claim 6, characterized in that: Along the height direction of the vehicle, the first mounting plate has a first end and a second end, wherein the second end is closer to the connecting member than the first end, and a size of the first mounting plate in the length direction of the vehicle gradually increases from the first end to the second end.

10. A suspension system, characterized in that: Comprising a control arm assembly according to any one of claims 1-9.

11. A vehicle, characterized in that: Comprising a suspension system according to claim 10.

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