Corner module suspension system and vehicle

Abstract

The utility model provides an angle module suspension system and vehicle relates to vehicle technical field. It is used for solving how to improve the technical problem of stability of vehicle. The angle module suspension system includes first suspension, first suspension is used for connecting between front wheel and car body, and first suspension includes first upper swing arm, first upper swing arm includes first body and first ball hinge and second ball hinge connected on first body, first body includes first connecting portion and second connecting portion, first connecting portion and second connecting portion are all used for connecting car body, first ball hinge and second ball hinge are used for connecting first steering motor support, along vehicle length direction, first ball hinge is located in the front side of second ball hinge, the arrangement direction of first connecting portion and second connecting portion is parallel with the arrangement direction of first ball hinge and second ball hinge, and the height of first ball hinge from ground is higher than the height of second ball hinge from ground. The angle module suspension system is used for improving the stability of vehicle.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to a corner module suspension system and a vehicle. Background Technology

[0002] Vehicles are typically equipped with a suspension system to absorb impacts from the road surface, thereby ensuring vehicle stability. The suspension system usually includes upper and lower control arms, which support the vehicle body and shock absorbers, improving driving comfort.

[0003] The prior art provides a hub drive angle reduction module device with steering and disc braking functions, with a top-mounted steering motor, the front and rear mounting points of the upper control arm are designed with the same Z-direction height and connected to the body rubber bushing, the outer point of the upper control arm is connected to the steering motor bracket by a bearing, and the kingpin caster angle is designed to be 0 degrees.

[0004] The way the upper and lower control arm assemblies are arranged in the above-mentioned suspension assembly will result in poor anti-pitch performance of the whole vehicle, which will lead to poor vehicle stability when the vehicle is subjected to large road impacts, thus affecting the driving experience. Utility Model Content

[0005] The purpose of this invention is to provide a corner module suspension system and a vehicle to solve the technical problem of how to improve vehicle stability.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] In a first aspect, this application provides a corner module suspension system for a vehicle. The corner module suspension system includes a first suspension for connecting the front wheel and the vehicle body. The first suspension includes a first upper control arm, which includes a first body and a first ball joint and a second ball joint connected to the first body. The first body includes a first connecting portion and a second connecting portion, both of which are used to connect to the vehicle body. The first ball joint and the second ball joint are used to connect to a first steering motor bracket. Along the length direction of the vehicle, the first ball joint is located in front of the second ball joint. The arrangement direction of the first connecting portion and the second connecting portion is parallel to the arrangement direction of the first ball joint and the second ball joint, and the height of the first ball joint from the ground is higher than the height of the second ball joint from the ground.

[0008] According to the above technical means, by placing the first ball joint in front of the second ball joint along the length of the vehicle, arranging the first and second connecting parts in a direction parallel to the arrangement direction of the first ball joint, and placing the first ball joint at a height higher than the second ball joint at a height higher than the ground, the first and second ball joints can better suppress the nose drop of the vehicle during braking, thereby better suppressing the vehicle's nose-diving ability and effectively suppressing the pitch of the vehicle body, thus improving the vehicle's ride comfort and driving stability.

[0009] In one possible implementation, the first ball joint includes a first ball joint seat and a first ball head, the first ball head being rotatably disposed on the first ball joint seat and used to connect to the first steering motor bracket; the second ball joint includes a second ball joint seat and a second ball head, the second ball head being rotatably disposed on the second ball joint seat and used to connect to the first steering motor bracket; the first ball joint seat and the second ball joint seat have the same height dimension.

[0010] According to the above-mentioned technical means, the first ball joint seat and the second ball joint seat have the same height dimension, which can facilitate the setting of the first ball joint seat and the second ball joint seat, so as to ensure that the height of the first ball joint from the ground is higher than that of the second ball joint from the ground, thereby facilitating the stability of the vehicle.

[0011] In one possible implementation, the first suspension further includes a first lower control arm, which includes a third connecting portion, a fourth connecting portion, and a third ball joint. The third connecting portion and the fourth connecting portion are used to connect to the vehicle body, and the third ball joint is used to connect to the front wheel. A straight line passing through the third ball joint and parallel to the arrangement direction of the third connecting portion and the fourth connecting portion is a first straight line. A straight line passing through the first ball joint and the second ball joint is a second straight line. The intersection of the first straight line and the second straight line is a first intersection point. The line connecting the first intersection point and the contact point of the front wheel is a third straight line. The angle between the third straight line and the horizontal plane is a first angle, which is between 3° and 8°.

[0012] According to the above-mentioned technical means, by using the first included angle between 3° and 8°, when the vehicle brakes, the braking force from the ground to the wheels is transmitted to the vehicle body through the first suspension, which generates an upward anti-nodding torque to offset part of the force that causes the front of the vehicle body to sink, thereby reducing the nodding amplitude. This not only avoids the discomfort of forward tilting caused by inertia for passengers, but also reduces the change in vision caused by the sinking of the front of the vehicle, thus improving driving safety.

[0013] In one possible implementation, the first upper swing arm is a cast aluminum swing arm structure.

[0014] Based on the aforementioned technical means, the first upper control arm is a cast aluminum control arm structure, which can ensure the structural strength of the first upper control arm and thus provide better support for the vehicle body.

[0015] In one possible implementation, the first body further includes a first connecting plate, and the first connecting portion, the second connecting portion, the first ball joint, and the second ball joint are all connected to the first connecting plate, with the first connecting plate parallel to the arrangement direction of the first ball joint and the second ball joint.

[0016] According to the aforementioned technical means, the first connecting plate, serving as the connecting carrier for the first connecting part, the second connecting part, the first ball joint, and the second ball joint, can integrate and transfer the forces on these components, ensuring a uniform distribution of stress across the plate-like structure and improving the overall load-bearing capacity and durability. The first connecting plate is parallel to the arrangement of the first and second ball joints, which facilitates ensuring the relative positional accuracy of the first and second ball joints during the machining of the first upper swing arm, reducing accumulated assembly errors.

[0017] In one possible implementation, the first connecting plate is provided with a weight-reducing groove.

[0018] According to the above technical means, by setting a weight reduction groove on the first connecting plate, the material usage of the first upper swing arm can be reduced, thereby directly reducing the production cost while ensuring the strength and rigidity of the first upper swing arm.

[0019] In one possible implementation, the corner module suspension system further includes a second suspension for connecting the rear wheel and the vehicle body. The second suspension includes a second upper control arm, which includes a second body and a fourth ball joint and a fifth ball joint connected to the second body. The second body includes a fifth connecting portion and a sixth connecting portion, both of which are used to connect to the vehicle body. The fourth and fifth ball joints are used to connect to a second steering motor bracket. Along the length of the vehicle, the fourth ball joint is located in front of the fifth ball joint. The arrangement direction of the fifth and sixth connecting portions is parallel to the arrangement direction of the fourth and fifth ball joints, and the height of the fourth ball joint from the ground is lower than the height of the fifth ball joint from the ground.

[0020] According to the above technical means, with the fourth ball joint located in front of the fifth ball joint, and the arrangement direction of the fifth and sixth connecting parts parallel to the arrangement direction of the fourth and fifth ball joints, and the height of the fourth ball joint from the ground being lower than that of the fifth ball joint from the ground, the fourth and fifth ball joints can better suppress the lifting ability of the rear of the vehicle when the vehicle accelerates, thereby giving the rear of the vehicle better anti-lift performance and improving the stability of the vehicle. At the same time, the steering of the rear wheels and the front wheels form a synergistic effect, improving the flexibility and coordination of the overall vehicle handling.

[0021] In one possible implementation, the fourth ball joint includes a third ball joint seat and a third ball head, the third ball head being rotatably disposed on the third ball joint seat and used to connect to the second steering motor bracket; the fifth ball joint includes a fourth ball joint seat and a fourth ball head, the fourth ball head being rotatably disposed on the fourth ball joint seat and used to connect to the second steering motor bracket; the third ball joint seat and the fourth ball joint seat have the same height dimension.

[0022] According to the above-mentioned technical means, the third ball joint seat and the fourth ball joint seat have the same height dimension, which can facilitate the setting of the third ball joint seat and the fourth ball joint seat, so as to ensure that the height of the fourth ball joint from the ground is lower than the height of the fifth ball joint from the ground, thereby facilitating the stability of the vehicle.

[0023] In one possible implementation, the second suspension further includes a second lower control arm, which includes a seventh connecting portion, an eighth connecting portion, and a sixth ball joint. The seventh connecting portion and the eighth connecting portion are used to connect to the vehicle body, and the sixth ball joint is used to connect to the rear wheel. A straight line passing through the sixth ball joint and parallel to the arrangement direction of the seventh connecting portion and the eighth connecting portion is a fourth straight line. A straight line passing through the fourth ball joint and the fifth ball joint is a fifth straight line. The intersection of the fourth straight line and the fifth straight line is a second intersection point. The line connecting the second intersection point and the contact point of the rear wheel is a sixth straight line. The angle between the sixth straight line and the horizontal plane is a second angle, which is between 15° and 30°.

[0024] Based on the above technical means, by keeping the second included angle between 15° and 30°, it is possible to ensure that the second suspension behind the kingpin steering angle module has better anti-lift performance when the vehicle is braking, reduce the tendency of the second suspension to lift up, reduce the vehicle pitch angle, and improve the overall vehicle pitch feel.

[0025] Secondly, this application provides a vehicle that includes the corner module suspension system mentioned in the first aspect above.

[0026] Since the vehicle provided in this application includes the corner module suspension system as described in the first aspect above, both can solve the same technical problem and achieve the same effect. Attached Figure Description

[0027] Figure 1 A schematic diagram of the structure of a first suspension provided in an exemplary embodiment of this application;

[0028] Figure 2 for Figure 1 The diagram shown is a structural schematic of the first upper control arm and the first steering motor bracket in the first suspension.

[0029] Figure 3 for Figure 2 The diagram shows a top view of the first upper control arm and the first steering motor bracket.

[0030] Figure 4 for Figure 2 The diagram shows a bottom view of the structure of the first upper control arm and the first steering motor bracket.

[0031] Figure 5 for Figure 2 The diagram shows a side view of the first upper control arm and the first steering motor bracket.

[0032] Figure 6 A schematic diagram of the structure of the second suspension provided in an exemplary embodiment of this application;

[0033] Figure 7 for Figure 6 The diagram shows the structure of the second upper control arm and the second steering motor bracket in the second suspension.

[0034] Figure label:

[0035] 1000-angle modular suspension system;

[0036] 100 - First suspension;

[0037] 10-First upper swing arm; 101-First body; 1011-First connecting part; 1012-Second connecting part; 1013-First connecting plate; 102-First ball joint; 1021-First ball joint seat; 1022-First ball head; 103-Second ball joint; 1031-Second ball joint seat; 1032-Second ball head;

[0038] 20-First lower control arm; 201-Third connecting part; 202-Fourth connecting part; 203-Third ball joint;

[0039] 200 - First steering motor bracket;

[0040] 300 - Second suspension;

[0041] 30-Second upper swing arm; 301-Second body; 3011-Fifth connecting part; 3012-Sixth connecting part; 302-Fourth ball joint; 3021-Third ball joint seat; 3022-Third ball head; 303-Fifth ball joint; 3031-Fourth ball joint seat; 3032-Fourth ball head;

[0042] 40-Second lower control arm; 401-Seventh connecting part; 402-Eighth connecting part; 403-Sixth ball joint;

[0043] 400 - Second steering motor bracket;

[0044] 2000 - front wheel; 3000 - rear wheel. Detailed Implementation

[0045] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0046] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0047] This application provides a vehicle. The specific type of vehicle is not specifically limited in this application; for example, the vehicle provided in this application can be an electric vehicle, a hybrid vehicle, a gasoline vehicle, or a solar-powered vehicle. The vehicle provided in this application can also be of different forms. For example, the vehicle provided in this application can be a sedan, a sport utility vehicle (SUV), or a multi-purpose vehicle (MPV).

[0048] In some embodiments, the vehicle provided in this application may include a body, wheels, and a corner module suspension system. The corner module suspension system can be connected between the body and the wheels. The corner module suspension system can adjust the distance between the body and the wheels to ensure the stability of the vehicle body when subjected to road impacts, thereby improving the driving experience. The core function of the corner module suspension system is to balance the vehicle's power, comfort, handling, and safety during driving.

[0049] In some examples, the corner module suspension system may include multiple suspensions, one of which connects a wheel to the vehicle body. For example, a suspension may be installed between a front wheel and the vehicle body, and a suspension may be installed between a rear wheel and the vehicle body.

[0050] In some embodiments, see Figure 1 and Figure 2 The corner module suspension system 1000 may include a first suspension 100, which is connected between the front wheel 2000 and the vehicle body. The first suspension 100 is used to adjust the distance between the front wheel 2000 and the vehicle body to ensure the stability of the vehicle body.

[0051] The first suspension 100 may include a first upper control arm 10, which is connected to the vehicle body and used to support the weight of the vehicle body. For an example, please refer to [link to example]. Figure 3 , Figure 4 and Figure 5 The first upper control arm 10 includes a first body 101, which may include a first connecting portion 1011 and a second connecting portion 1012. Both the first connecting portion 1011 and the second connecting portion 1012 are used to connect to the vehicle body. For example, the first connecting portion 1011 and the second connecting portion 1012 may be a plate-like structure, a rod-like structure, a block-like structure, etc. In some examples, the first connecting portion 1011 and the second connecting portion 1012 may be connected to the vehicle body by means of screwing, snap-fitting, etc. In some examples, the first connecting portion 1011 and the second connecting portion 1012 may be connected to the vehicle body using rubber bushings.

[0052] The first suspension 100 can also be connected to a first steering motor, which controls the trajectory of the front wheels 2000 to ensure that the front wheels 2000 are always in contact with the ground surface. For an example, please refer to [link / reference needed]. Figures 1 to 5 The first upper control arm 10 may also include a first ball joint 102 and a second ball joint 103 connected to the first body 101. The first ball joint 102 and the second ball joint 103 are used to connect the first steering motor bracket 200, and the first steering motor bracket 200 is used to connect the first steering motor.

[0053] Along the length of the vehicle (e.g.) Figure 1 In the direction X shown, the first ball joint 102 is located in front of the second ball joint 103, that is, the first ball joint 102 and the second ball joint 103 are arranged along the length direction of the vehicle. Figure 1 In the direction X, A represents the front and B represents the rear.

[0054] The arrangement direction of the first connecting part 1011 and the second connecting part 1012 is parallel to the arrangement direction of the first ball joint 102 and the second ball joint 103, and the height of the first ball joint 102 from the ground is higher than the height of the second ball joint 103 from the ground.

[0055] Based on this, the first upper control arm 10 includes a first body 101 and a first ball joint 102 and a second ball joint 103 connected to the first body 101. The first body 101 is used to connect to the vehicle body, and the first ball joint 102 and the second ball joint 103 are used to connect to the first steering motor bracket 200. The installation position of the first steering motor bracket 200 has reserved sufficient space and a reasonable structure, so that the first upper control arm 10 can move freely within the maximum travel range and is not blocked or restricted by the first steering motor bracket 200, thereby reducing the steering torque.

[0056] With the first ball joint 102 located in front of the second ball joint 103 along the length of the vehicle, and the arrangement direction of the first connecting part 1011 and the second connecting part 1012 parallel to the arrangement direction of the first ball joint 102 and the second ball joint 103, and the height of the first ball joint 102 above the ground being higher than the height of the second ball joint 103 above the ground, the first ball joint 102 and the second ball joint 103 can better suppress the nose drop of the vehicle when the vehicle brakes, thereby better suppressing the vehicle's nose-diving ability and effectively suppressing the pitch of the vehicle body, improving the vehicle's ride comfort and driving stability.

[0057] Furthermore, the arrangement direction of the first connecting part 1011 and the second connecting part 1012 is parallel to the arrangement direction of the first ball joint 102 and the second ball joint 103, which can also enable the first upper swing arm 10 to release sufficient degrees of freedom when swinging up and down during vehicle operation, avoiding durability risks such as interference, oil leakage, and abnormal noise when the ball joint rotates.

[0058] For example, the difference between the height of the first ball joint 102 and the height of the second ball joint 103 from the ground is between 20mm and 45mm. For instance, the difference between the height of the first ball joint 102 and the height of the second ball joint 103 from the ground can be 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, etc.

[0059] In some embodiments, please continue to see Figure 1 and Figure 2 The first ball joint 102 includes a first ball joint seat 1021 and a first ball head 1022. The first ball head 1022 is rotatably disposed on the first ball joint seat 1021 and is used to connect the first steering motor bracket 200.

[0060] Based on this, the first ball head 1022 is rotatably mounted on the first ball joint seat 1021, which allows the first steering motor bracket 200 to rotate in multiple directions relative to the first upper swing arm 10, so as to better adapt to the compound motion of the wheel under various working conditions such as steering, bouncing, and tilting, and ensure the coordination of the motion of each component.

[0061] For example, the first ball joint seat 1021 has a first groove inside, and the first ball head 1022 is disposed in the first groove to realize that the first ball head 1022 can move freely within the first ball joint seat 1021. The first ball joint seat 1021 can be a cylindrical structure, a square structure, an elliptical cylindrical structure, etc.

[0062] For example, a first connecting rod is provided on the first ball joint 1022, and the first connecting rod and the first steering motor bracket 200 are fastened with bolts to ensure that the relative position between the first ball joint 102 and the first steering motor bracket 200 is stable.

[0063] The second ball joint 103 may include a second ball joint seat 1031 and a second ball head 1032. The second ball head 1032 is rotatably disposed on the second ball joint seat 1031 and is used to connect to the first steering motor bracket 200. The rotatable second ball head 1032 on the second ball joint seat 1031 allows the first steering motor bracket 200 to rotate relative to the first upper control arm 10 in multiple directions, better adapting to the complex movements of the wheel under various working conditions such as steering, bouncing, and tilting, ensuring the coordination of the movements of each component. The structure of the second ball joint seat 1031 can be the same as that of the first ball joint seat 1021, and the connection method between the second ball head 1032 and the first steering motor bracket 200 can be the same as the connection method between the first ball head 1022 and the first steering motor bracket 200; this application does not specifically limit this.

[0064] The first ball joint seat 1021 and the second ball joint seat 1031 have the same height. This facilitates the placement of the first ball joint seat 1021 and the second ball joint seat 1031, ensuring that the height of the first ball joint 102 from the ground is higher than that of the second ball joint 103 from the ground, thereby facilitating vehicle stability.

[0065] In some other embodiments, the height dimensions of the first ball joint seat 1021 and the second ball joint seat 1031 may also be different. It is only necessary to ensure that, during installation, the upper surface height of the first ball joint seat 1021 is higher than the upper surface height of the second ball joint seat 1031, that is, to ensure that the height of the first ball joint 1022 is higher than the height of the second ball joint 1032. This can also improve the vehicle's anti-dive capability and enhance its stability.

[0066] In some embodiments, please continue to see Figure 1 The first suspension 100 also includes a first lower control arm 20, which includes a third connecting portion 201, a fourth connecting portion 202, and a third ball joint 203. The third connecting portion 201 and the fourth connecting portion 202 are connected to the vehicle body. For example, the third connecting portion 201 and the fourth connecting portion 202 can be a rod-like structure, a plate-like structure, a block-like structure, etc. For example, the third connecting portion 201 and the fourth connecting portion 202 can be connected to the vehicle body by means of screwing, snap-fitting, etc. In some examples, the first lower control arm 20 can also include a main structure, to which the third connecting portion 201, the fourth connecting portion 202, and the third ball joint 203 are all connected. The main structure can be a plate-like structure, a block-like structure, etc.

[0067] The third ball joint 203 connects to the front wheel 2000. In some examples, the structure of the third ball joint 203 can be the same as that of the first ball joint 102, which will not be described in detail here.

[0068] It should be noted that, Figure 1 The structure of the first lower control arm 20 shown only illustrates the positional relationship between the third connecting part 201, the fourth connecting part 202, and the third ball joint 203 in the first lower control arm 20, and cannot be considered as... Figure 1 The first lower control arm 20 shown is the actual structure of the first lower control arm 20.

[0069] The straight line passing through the third ball joint 203 and parallel to the arrangement direction of the third connecting part 201 and the fourth connecting part 202 is the first straight line (e.g., Figure 1 The straight line L1 in the diagram, passing through the first ball joint 102 and the second ball joint 103, is the second straight line (as shown in the diagram). Figure 1 In the line L2), the intersection of the first line and the second line is the first intersection point (e.g., line L2). Figure 1 Point M in the middle), the first intersection point is the forward tilt center.

[0070] The first intersection point is the contact point of the front wheel 2000 (i.e., the point where the front wheel 2000 contacts the ground, such as...). Figure 1 The line connecting point P1 in the middle is the third line (as shown in the image). Figure 1 The angle between the third line (L3) and the horizontal plane is the same as the first angle (e.g., the angle between the third line and the horizontal plane is the same as the first angle). Figure 1 The angle α shown is between 3° and 8°. The first included angle is the anti-slip angle of the first suspension 100. For example, the first included angle can be 3°, 4°, 5°, 6°, 7°, 8°, etc.

[0071] Based on this, by using the first included angle between 3° and 8°, when the vehicle brakes, the braking force from the ground to the wheels is transmitted to the vehicle body through the first suspension 100, which generates an upward anti-nodding torque to offset part of the force that causes the front of the vehicle body to sink, reducing the nodding amplitude. This not only avoids the discomfort of forward tilting caused by inertia for passengers, but also reduces the change in visibility caused by the sinking of the front of the vehicle, thus improving driving safety.

[0072] In some embodiments, the first upper control arm 10 can be a cast aluminum control arm structure. This ensures the structural strength of the first upper control arm 10, thereby providing better support for the vehicle body.

[0073] In some other embodiments, the first upper swing arm 10 may also be made of stainless steel, which can also ensure the structural strength of the first upper swing arm 10.

[0074] In some embodiments, please continue to see Figure 3 The first body 101 also includes a first connecting plate 1013. The first connecting part 1011, the second connecting part 1012, the first ball joint 102, and the second ball joint 103 are all connected to the first connecting plate 1013. The first connecting plate 1013 is parallel to the arrangement direction of the first ball joint 102 and the second ball joint 103.

[0075] Based on this, the first connecting plate 1013 serves as the connecting carrier for the first connecting part 1011, the second connecting part 1012, the first ball joint 102, and the second ball joint 103. It can transfer the force on the first connecting part 1011, the second connecting part 1012, the first ball joint 102, and the second ball joint 103 as a whole, ensuring that the stress is evenly distributed on the plate structure and improving the overall load-bearing capacity and durability. The first connecting plate 1013 is parallel to the arrangement direction of the first ball joint 102 and the second ball joint 103. During the processing of the first upper swing arm 10, this facilitates ensuring the relative positional accuracy of the first ball joint 102 and the second ball joint 103, reducing accumulated assembly errors.

[0076] For example, the first connecting part 1011, the second connecting part 1012, the first ball joint 102, and the second ball joint 103 can be integrated with the first connecting plate 1013, or they can be connected by welding, screwing, or other methods.

[0077] In some embodiments, please continue to see Figure 3 The first connecting plate 1013 is provided with a weight-reducing groove 1013A. For example, the weight-reducing groove 1013A may be recessed from one surface of the first connecting plate 1013 in the thickness direction toward the other surface. As another example, the weight-reducing groove 1013A may also be recessed from one surface of the first connecting plate 1013 in the length direction toward the other surface, or from one surface of the first connecting plate 1013 in the width direction toward the other surface.

[0078] Based on this, by setting a weight reduction groove 1013A on the first connecting plate 1013, the material usage of the first upper swing arm 10 can be reduced. While ensuring the strength and rigidity of the first upper swing arm 10, the production cost can be directly reduced. At the same time, the lightweight design can also indirectly improve the vehicle's range.

[0079] For example, the weight reduction groove 1013A of the first connecting plate 1013 is located between the first ball joint 102 and the second ball joint 103, and the weight reduction groove 1013A is U-shaped.

[0080] In some embodiments, see Figure 6 and combined Figure 7 The corner module suspension system 1000 may also include a second suspension 300, which is used to connect the rear wheel 3000 and the vehicle body. The second suspension 300 is used to adjust the distance between the rear wheel 3000 and the vehicle body to ensure the stability of the vehicle body.

[0081] The second suspension 300 may include a second upper control arm 30, which is connected to the vehicle body and used to support the weight of the vehicle body. For example, the second upper control arm 30 includes a second body 301, which may include a fifth connecting portion 3011 and a sixth connecting portion 3012, both of which are used to connect to the vehicle body. The structures of the fifth connecting portion 3011 and the sixth connecting portion 3012 can be the same as those of the first connecting portion 1011 and the second connecting portion 1012, and the connection methods between the fifth connecting portion 3011 and the sixth connecting portion 3012 and the vehicle body can be the same as those between the first connecting portion 1011 and the second connecting portion 1012 and the vehicle body; these details will not be elaborated further here.

[0082] The second suspension 300 can also be connected to a second steering motor, which controls the trajectory of the rear wheel 3000 so that the rear wheel 3000 is always in contact with the ground surface. For example, the second upper control arm 30 can also include a fourth ball joint 302 and a fifth ball joint 303 connected to the second body 301, which are used to connect to a second steering motor bracket 400, which is used to connect to the second steering motor.

[0083] Along the length of the vehicle, the fourth ball joint 302 is located in front of the fifth ball joint 303. The arrangement direction of the fifth connecting part 3011 and the sixth connecting part 3012 is parallel to the arrangement direction of the fourth ball joint 302 and the fifth ball joint 303, and the height of the fourth ball joint 302 from the ground is lower than the height of the fifth ball joint 303 from the ground.

[0084] Based on this, the second upper control arm 30 includes a second body 301 and a fourth ball joint 302 and a fifth ball joint 303 connected to the second body 301. The second body 301 is used to connect to the vehicle body, and the fourth ball joint 302 and the fifth ball joint 303 are used to connect to the second steering motor bracket 400. The installation position of the second steering motor bracket 400 has reserved sufficient space and a reasonable structure, so that the second upper control arm 30 can move freely within the maximum travel range without being blocked or restricted by the second steering motor bracket 400, thereby reducing the steering torque.

[0085] With the fourth ball joint 302 located in front of the fifth ball joint 303, and the fifth connecting part 3011 and the sixth connecting part 3012 arranged in a direction parallel to the arrangement direction of the fourth ball joint 302 and the fifth ball joint 303, and the height of the fourth ball joint 302 from the ground being lower than the height of the fifth ball joint 303 from the ground, the fourth ball joint 302 and the fifth ball joint 303 can better suppress the lifting ability of the rear of the vehicle when the vehicle accelerates, thereby giving the rear of the vehicle better anti-lift performance and improving the stability of the vehicle. At the same time, the steering of the rear wheel 3000 and the front wheel 2000 forms a synergistic effect, improving the flexibility and coordination of the overall vehicle handling.

[0086] For example, the difference between the height of the fifth ball joint 303 and the height of the fourth ball joint 302 from the ground is between 20mm and 100mm. For instance, the difference between the height of the fifth ball joint 303 and the height of the fourth ball joint 302 from the ground can be 20mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, etc.

[0087] In some embodiments, please continue to see Figure 7 The fourth ball joint 302 may include a third ball joint seat 3021 and a third ball head 3022. The third ball head 3022 is rotatably disposed on the third ball joint seat 3021 and is used to connect the second steering motor bracket 400.

[0088] Based on this, the third ball joint 3022 is rotatably mounted on the third ball joint seat 3021, allowing the second steering motor bracket 400 to rotate relative to the second upper swing arm 30 in multiple directions. This better adapts to the complex movements of the wheel under various working conditions such as steering, bouncing, and tilting, ensuring the coordination of the movements of each component. The structure of the fourth ball joint 302 can be the same as that of the first ball joint 102, and the connection method between the fourth ball joint 302 and the second steering motor bracket 400 can be the same as the connection method between the first ball joint 102 and the first steering motor bracket 200, which will not be described in detail here.

[0089] The fifth ball joint 303 may include a fourth ball joint seat 3031 and a fourth ball head 3032. The fourth ball head 3032 is rotatably mounted on the fourth ball joint seat 3031 and is used to connect to the second steering motor bracket 400. The rotatable mounting of the fourth ball head 3032 on the fourth ball joint seat 3031 allows the second steering motor bracket 400 to rotate relative to the second upper control arm 30 in multiple directions, better adapting to the complex movements of the wheel under various working conditions such as steering, bouncing, and tilting, ensuring the coordination of the movements of each component. The structure of the fifth ball joint 303 can be the same as that of the first ball joint 102, and the connection method between the fifth ball joint 303 and the second steering motor bracket 400 can be the same as the connection method between the first ball joint 102 and the first steering motor bracket 200, which will not be described in detail here.

[0090] The third ball joint seat 3021 and the fourth ball joint seat 3031 have the same height. This facilitates the placement of the third ball joint seat 3021 and the fourth ball joint seat 3031, ensuring that the height of the fourth ball joint 302 from the ground is lower than the height of the fifth ball joint 303 from the ground, thereby facilitating vehicle stability.

[0091] In some other embodiments, the height dimensions of the third ball joint seat 3021 and the fourth ball joint seat 3031 may also be different. It is only necessary to ensure that, during installation, the height of the upper surface of the third ball joint seat 3021 is lower than the height of the upper surface of the fourth ball joint seat 3031; that is, to ensure that the height of the third ball joint 3022 is lower than the height of the fourth ball joint 3032. This also improves the vehicle's anti-lifting capability and enhances its stability.

[0092] In some embodiments, please continue to see Figure 6 The second suspension 300 also includes a second lower control arm 40, which includes a seventh connecting part 401, an eighth connecting part 402, and a sixth ball joint 403. The seventh connecting part 401 and the eighth connecting part 402 are connected to the vehicle body. The structure of the seventh connecting part 401 and the eighth connecting part 402 can be the same as that of the third connecting part 201 and the fourth connecting part 202, and the connection method between the seventh connecting part 401 and the eighth connecting part 402 and the vehicle body can be the same as that between the third connecting part 201 and the fourth connecting part 202 and the vehicle body, which will not be described in detail here.

[0093] The sixth ball joint 403 is connected to the rear wheel 3000. In some examples, the structure of the sixth ball joint 403 can be the same as that of the first ball joint 102, which will not be described in detail here.

[0094] It should be noted that, Figure 6 The structure of the second lower control arm 40 shown only illustrates the positional relationship between the seventh connecting part 401, the eighth connecting part 402, and the sixth ball joint 403 in the second lower control arm 40, and should not be considered as... Figure 6 The second lower control arm 40 shown is the actual structure of the second lower control arm 40.

[0095] The straight line passing through the sixth ball joint 403 and parallel to the arrangement direction of the seventh connecting part 401 and the eighth connecting part 402 is the fourth straight line (e.g., Figure 6 The line L4 in the diagram, passing through the fourth ball joint 302 and the fifth ball joint 303, is the fifth line (as shown in the diagram). Figure 6 The intersection of the fourth and fifth lines is the second intersection point (e.g., line L5). Figure 6 Point N in the middle), the second intersection point is the rear longitudinal tilt center.

[0096] The second intersection point is the contact point of the rear wheel 3000 (i.e., the point where the rear wheel 3000 contacts the ground, such as...). Figure 6 The line connecting point P2 in the middle is the sixth line (as shown in the image). Figure 6 As shown in the diagram (L6), the angle between the sixth line and the horizontal plane is the second angle (as shown in the diagram). Figure 6The angle β shown is between 15° and 30°. The second included angle is the anti-lift angle of the second suspension 300. For example, the second included angle can be 15°, 18°, 20°, 25°, 28°, 30°, etc.

[0097] Based on this, by keeping the second included angle between 15° and 30°, it is possible to ensure that the second suspension 300 behind the kingpin steering angle module has better anti-lift performance when the vehicle is braking, reduce the tendency of the second suspension 300 to lift up, reduce the vehicle pitch angle, and improve the overall vehicle pitch feel.

[0098] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A corner module suspension system for a vehicle, characterized in that, The corner module suspension system includes: A first suspension (100) is used to connect the front wheel (2000) and the vehicle body. The first suspension (100) includes a first upper control arm (10), which includes a first body (101) and a first ball joint (102) and a second ball joint (103) connected to the first body (101). The first body (101) includes a first connecting portion (1011) and a second connecting portion (1012), both of which are used to connect to the vehicle body. The first ball joint (102) and the second ball joint (103) are used to connect the first steering motor bracket (200). Along the length direction of the vehicle, the first ball joint (102) is located in front of the second ball joint (103). The arrangement direction of the first connecting part (1011) and the second connecting part (1012) is parallel to the arrangement direction of the first ball joint (102) and the second ball joint (103), and the height of the first ball joint (102) above the ground is higher than the height of the second ball joint (103) above the ground.

2. The corner module suspension system according to claim 1, characterized in that, The first ball joint (102) includes a first ball joint seat (1021) and a first ball head (1022). The first ball head (1022) is rotatably disposed on the first ball joint seat (1021), and the first ball head (1022) is used to connect to the first steering motor bracket (200). The second ball joint (103) includes a second ball joint seat (1031) and a second ball head (1032). The second ball head (1032) is rotatably disposed on the second ball joint seat (1031) and is used to connect the first steering motor bracket (200). The first ball joint seat (1021) and the second ball joint seat (1031) have the same height dimension.

3. The corner module suspension system according to claim 1, characterized in that, The first suspension (100) further includes a first lower control arm (20), the first lower control arm (20) includes a third connecting part (201), a fourth connecting part (202) and a third ball joint (203), the third connecting part (201) and the fourth connecting part (202) are used to connect the vehicle body, and the third ball joint (203) is used to connect the front wheel (2000); A straight line passing through the third ball joint (203) and parallel to the arrangement direction of the third connecting part (201) and the fourth connecting part (202) is a first straight line; a straight line passing through the first ball joint (102) and the second ball joint (103) is a second straight line; the intersection of the first straight line and the second straight line is a first intersection point; the line connecting the first intersection point and the contact point of the front wheel (2000) is a third straight line; the angle between the third straight line and the horizontal plane is a first angle, which is between 3° and 8°.

4. The corner module suspension system according to any one of claims 1-3, characterized in that, The first upper swing arm (10) is a cast aluminum swing arm structure.

5. The corner module suspension system according to any one of claims 1-3, characterized in that, The first body (101) further includes a first connecting plate (1013), the first connecting part (1011), the second connecting part (1012), the first ball joint (102), and the second ball joint (103) are all connected to the first connecting plate (1013), and the first connecting plate (1013) is parallel to the arrangement direction of the first ball joint (102) and the second ball joint (103).

6. The corner module suspension system according to claim 5, characterized in that, The first connecting plate (1013) is provided with a weight reduction groove.

7. The corner module suspension system according to any one of claims 1-3, characterized in that, It also includes a second suspension (300) for connecting the rear wheel (3000) and the vehicle body. The second suspension (300) includes a second upper control arm (30), which includes a second body (301) and a fourth ball joint (302) and a fifth ball joint (303) connected to the second body (301). The second body (301) includes a fifth connecting part (3011) and a sixth connecting part (3012), both of which are used to connect the vehicle body. The fourth ball joint (302) and the fifth ball joint (303) are used to connect the second steering motor bracket (400). Along the length of the vehicle, the fourth ball joint (302) is located in front of the fifth ball joint (303). The arrangement direction of the fifth connecting part (3011) and the sixth connecting part (3012) is parallel to the arrangement direction of the fourth ball joint (302) and the fifth ball joint (303), and the height of the fourth ball joint (302) from the ground is lower than the height of the fifth ball joint (303) from the ground.

8. The corner module suspension system according to claim 7, characterized in that, The fourth ball joint (302) includes a third ball joint seat (3021) and a third ball head (3022). The third ball head (3022) is rotatably disposed on the third ball joint seat (3021), and the third ball head (3022) is used to connect to the second steering motor bracket (400). The fifth ball joint (303) includes a fourth ball joint seat (3031) and a fourth ball head (3032). The fourth ball head (3032) is rotatably disposed on the fourth ball joint seat (3031), and the fourth ball head (3032) is used to connect to the second steering motor bracket (400). The third ball joint seat (3021) and the fourth ball joint seat (3031) have the same height dimension.

9. The corner module suspension system according to claim 7, characterized in that, The second suspension (300) also includes a second lower control arm (40), which includes a seventh connecting part (401), an eighth connecting part (402) and a sixth ball joint (403). The seventh connecting part (401) and the eighth connecting part (402) are used to connect the vehicle body, and the sixth ball joint (403) is used to connect the rear wheel (3000). The straight line passing through the sixth ball joint (403) and parallel to the arrangement direction of the seventh connecting part (401) and the eighth connecting part (402) is the fourth straight line. The straight line passing through the fourth ball joint (302) and the fifth ball joint (303) is the fifth straight line. The intersection of the fourth straight line and the fifth straight line is the second intersection point. The line connecting the second intersection point and the contact point of the rear wheel (3000) is the sixth straight line. The angle between the sixth straight line and the horizontal plane is the second angle, which is between 15° and 30°.

10. A vehicle, characterized in that, include: The corner module suspension system according to any one of claims 1-9.

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