Suspension system and vehicle with same

Abstract

The suspension system comprises an auxiliary frame, a driving assembly and a brake assembly, the driving assembly and the brake assembly are installed on the auxiliary frame, and the driving assembly comprises a first driving piece; the brake assembly comprises a first brake assembly; the first driving piece is used for driving the first cantilever to move towards the first brake assembly or away from the first brake assembly. According to the suspension system, the driving assembly is arranged to drive the first cantilever to move, the spring piece or the brake assembly can be adjusted, and the control performance and the comfort performance of the whole vehicle can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a suspension system and a vehicle with the same. Background Art

[0002] Currently in the automotive industry, if you want to enable the vehicle to actively adjust the body posture following the changes in road conditions, most of the methods used are to change the springs or change the suspension stiffness. Whether changing the springs or changing the suspension stiffness, an air suspension system is required, that is, changing the pressure of the gas in the internal cavity of the air spring to achieve the variable stiffness method. Since the cost of the air suspension system is too high and it can only be used in conjunction with air springs, ordinary coil springs are not suitable for the air suspension system. Therefore, the scope of use of the air suspension system is greatly limited and cannot meet the adjustment needs of most vehicles. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a suspension system that can change the suspension stiffness and adjust the body posture.

[0004] According to the suspension system of the embodiment of the utility model, it includes: a subframe and a drive assembly and a brake assembly installed on the subframe, the drive assembly includes a first drive member; the brake assembly includes a first brake assembly; the suspension system also includes a first cantilever and a spring member, the first cantilever is transmission-connected between the first drive member and the first brake assembly, the spring member includes a first spring member, the upper end of the first spring member is fixedly connected to the vehicle body, and the lower end is fixedly connected to the first cantilever, and the first drive member is used to drive the first cantilever to move toward the direction of the first brake assembly or away from the first brake assembly.

[0005] According to the suspension system of the embodiment of the utility model, a driving assembly is provided to drive the first cantilever, so that the first cantilever can drive the first spring member to move, so as to adjust the ratio of the distance between the lower end mounting point of the first spring member and the wheel center of the wheel to the distance between the mounting point between the first cantilever and the first driving member and the wheel center of the wheel, thereby adjusting the stiffness of the first spring member and the overall stiffness of the suspension system to change the handling performance and comfort performance of the entire vehicle.

[0006] In addition, the suspension system according to the utility model may also have the following additional technical features:

[0007] In some embodiments, the first brake assembly is movably mounted on the sub-frame in a horizontal direction, and the first driving member is used to drive the first cantilever and enable the first brake assembly to move in a horizontal direction.

[0008] In some embodiments, in a direction from the first cantilever to the first brake assembly, the width of the first cantilever gradually increases, and the lower end of the first spring member is fixedly connected to an end of the first cantilever facing the first brake assembly.

[0009] In some embodiments, the subframe is a symmetrical structure symmetrical along an axis of symmetry, the drive assembly also includes a second drive member symmetrically arranged with the first drive member along the axis of symmetry, the brake assembly also includes a second brake assembly symmetrically arranged with the first brake assembly along the axis of symmetry, the suspension system also includes a second cantilever symmetrically arranged with the first cantilever along the axis of symmetry, the spring member also includes a second spring member symmetrically arranged with the first spring member along the axis of symmetry, the second cantilever is transmission-connected between the second drive member and the second brake assembly, the upper end of the second spring member is fixedly connected to the vehicle body, and the lower end is fixedly connected to the second cantilever, and the second drive member is used to drive the second cantilever to move toward the direction of the second brake assembly or away from the second brake assembly.

[0010] In some embodiments, the drive assembly further includes: a shell, the shell being located between the first cantilever and the second cantilever, the first drive member and the second drive member being both mounted in the shell; and a mounting bracket, the mounting bracket being used to mount the shell on the sub-frame assembly.

[0011] In some embodiments, the first driving member and the second driving member are both linear motors installed in the housing.

[0012] In some embodiments, the first driving member includes a left stator and a left mover; the second driving member includes a right stator and a right mover; the left stator and the right stator are both installed in the shell and spaced apart in the left-right direction; the left mover and the right mover are coaxially arranged and respectively penetrated in the left stator and the right stator.

[0013] In some embodiments, the first spring member and the second spring member are both coil springs, or the first spring member and the second spring member are both air springs.

[0014] In some embodiments, the suspension system further includes: a road surface detection sensor, which is used to obtain road surface information; and a controller, which is used to control the driving component according to the road surface information.

[0015] The utility model also provides a vehicle having the above embodiment;

[0016] According to the vehicle of the embodiment of the utility model, by setting the suspension system of the above embodiment, the grip, controllability and comfort of the whole vehicle under complex road conditions can be effectively improved.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of a suspension system according to an embodiment of the utility model;

[0019] Figure 2 is a top view of a suspension system according to an embodiment of the utility model;

[0020] Figure 3 is a rear view of a suspension system according to an embodiment of the utility model;

[0021] Figure 4 is a schematic diagram of a drive assembly of a suspension system according to an embodiment of the utility model;

[0022] Figure 5 It is a cross-sectional view of a drive assembly of a suspension system according to an embodiment of the utility model.

[0023] Reference numerals:

[0024] 100. Suspension system;

[0025] 1. Subframe;

[0026] 2. Driving assembly; 21. First driving member; 22. Second driving member; 23. Housing; 24. Mounting bracket; 211. Left stator; 212. Left mover; 221. Right stator; 222. Right mover;

[0027] 3. Brake assembly; 31. First brake assembly; 32. Second brake assembly;

[0028] 4. First cantilever; 5. Second cantilever;

[0029] 6. Spring member; 61. First spring member; 62. Second spring member;

[0030] 7. Wheel center. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Reference below Figure 1-Figure 5 A suspension system 100 according to an embodiment of the present invention is described.

[0036] like Figures 1 to 5As shown, the suspension system 100 according to the embodiment of the utility model includes: a subframe 1 and a driving component 2 and a brake component 3 installed on the subframe 1, the driving component 2 includes a first driving member 21; the brake component 3 includes a first brake component 31; the suspension system 100 also includes a first cantilever 4 and a spring member 6, the first cantilever 4 is transmission-connected between the first driving member 21 and the first brake component 31, the spring member 6 includes a first spring member 61, the upper end of the first spring member 61 is fixedly connected to the vehicle body, and the lower end is fixedly connected to the first cantilever 4, the first driving member 21 is used to drive the first cantilever 4 to move toward the direction of the first brake component 31 or away from the first brake component 31.

[0037] In this embodiment, the driving assembly 2 is used to drive the first cantilever 4 to move so as to adjust the handling performance and comfort performance of the whole vehicle; the brake assembly 3 is used to brake the whole vehicle to ensure the safety performance of the whole vehicle; the spring member 6 is used to buffer energy and reduce vibration to buffer the bumps and vibrations caused by the ground and improve the comfort and driving stability of the whole vehicle; wherein the upper and lower ends of the first spring member 61 are respectively connected to the vehicle body and the first cantilever 4. When the first driving assembly 2 drives the first cantilever 4 to move, the first cantilever 4 can drive the lower end of the first spring member 61 to move, and the upper end of the first spring member 61 is fixed.

[0038] At this time, the distance between the lower end mounting point of the first spring member 61 and the wheel center 7 will increase or decrease, and at the same time, the distance between the mounting point between the first cantilever 4 and the first driving member 21 and the wheel center 7 will increase or decrease.

[0039] In this way, the ratio of the distance between the lower end mounting point of the first spring member 61 and the wheel center 7 to the distance between the mounting point between the first cantilever 4 and the first driving member 21 and the wheel center 7 will become larger or smaller.

[0040] When the ratio becomes smaller, the stiffness of the spring member 6 will increase, and the overall stiffness of the suspension system 100 will also increase, so that the bumps and vibrations caused by the ground can be transmitted to the cabin more clearly, allowing the driver to feel the current ground conditions more clearly, thereby enhancing the driver's control over the vehicle. At the same time, the vehicle's stability and handling performance can also be significantly enhanced.

[0041] When the ratio becomes larger, the stiffness of the spring component 6 will decrease, and the overall stiffness of the suspension system 100 will also decrease, so that the bumps and vibrations caused by the ground can be effectively absorbed and buffered by the spring component 6, so that less vibration can be transmitted to the cabin, thereby significantly increasing the riding comfort in the cabin. At the same time, the comfort performance of the entire vehicle is also enhanced, improving the user experience.

[0042] According to the suspension system 100 in the above embodiment, the driving assembly 2 is provided to drive the first cantilever 4, so that the first cantilever 4 can drive the first spring member 61 to move, so as to adjust the ratio of the distance between the lower end mounting point of the first spring member 61 and the wheel center 7 of the wheel to the distance between the mounting point between the first cantilever 4 and the first driving member 21 and the wheel center 7 of the wheel, so that the stiffness of the first spring member 61 and the overall stiffness of the suspension system 100 can be adjusted to change the handling performance and comfort performance of the whole vehicle.

[0043] In some embodiments of the present invention, the subframe 1 is a symmetrical structure symmetrical along the axis of symmetry, the drive assembly 2 also includes a second drive member 22 symmetrically arranged with the first drive member 21 along the axis of symmetry, the brake assembly 3 also includes a second brake assembly 32 symmetrically arranged with the first brake assembly 31 along the axis of symmetry, the suspension system 100 also includes a second cantilever 5 symmetrically arranged with the first cantilever 4 along the axis of symmetry, and the spring member 6 also includes a second spring member 62 symmetrically arranged with the first spring member 61 along the axis of symmetry.

[0044] Further references include Figures 1 to 5 As shown, the suspension system 100 includes: a subframe 1 and a drive assembly 2 and a brake assembly 3 mounted on the subframe 1, wherein the drive assembly 2 includes a first drive member 21 and a second drive member 22; the brake assembly 3 includes a first brake assembly 31 and a second brake assembly 32; the suspension system 100 also includes a first cantilever 4, a second cantilever 5 and a spring member 6, wherein the first cantilever 4 is transmission-connected between the first drive member 21 and the first brake assembly 31, the second cantilever 5 is transmission-connected between the second drive member 22 and the second brake assembly 32, and the spring member 6 It includes a first spring member 61 and a second spring member 62. The upper end of the first spring member 61 is fixedly connected to the vehicle body, and the lower end is fixedly connected to the first cantilever 4. The upper end of the second spring member 62 is fixedly connected to the vehicle body, and the lower end is fixedly connected to the second cantilever 5. The first driving member 21 is used to drive the first cantilever 4 to move toward the direction of the first brake assembly 31 or away from the first brake assembly 31. The second driving member 22 is used to drive the second cantilever 5 to move toward the direction of the second brake assembly 32 or away from the second brake assembly 32.

[0045] In this embodiment, the driving assembly 2 is used to drive the first cantilever 4 and the second cantilever 5 to move so as to adjust the handling performance and comfort performance of the whole vehicle; the brake assembly 3 is used for braking the whole vehicle to ensure the safety performance of the whole vehicle; the spring member 6 is used for buffering energy absorption and reducing vibration to buffer the bumps and vibrations caused by the ground and improve the comfort and driving stability of the whole vehicle; wherein, the upper end and the lower end of the first spring member 61 are respectively connected to the vehicle body and the first cantilever 4, and the upper end and the lower end of the second spring member 62 are respectively connected to the vehicle body and the second cantilever 5. When the first driving assembly 2 and the second driving assembly 2 respectively drive the first cantilever 4 and the second cantilever 5 to move, the first cantilever 4 and the second cantilever 5 can simultaneously drive the lower end of the second spring member 62 and the lower end of the first spring member 61 to move, and the upper end of the second spring member 62 and the upper end of the first spring member 61 are both fixed.

[0046] At this time, the distance between the lower end mounting point of the first spring member 61 and the wheel center 7 of the left wheel will increase or decrease, and the distance between the lower end mounting point of the second spring member 62 and the wheel center 7 of the right wheel will also increase or decrease. At the same time, the distance between the mounting point between the first cantilever 4 and the first driving member 21 and the wheel center 7 of the left wheel will increase or decrease, and the distance between the mounting point between the second cantilever 5 and the second driving member 22 and the wheel center 7 of the right wheel will also increase or decrease.

[0047] In this way, the ratio of the distance between the lower end mounting point of the first spring member 61 and the wheel center 7 of the left wheel to the distance between the mounting point between the first cantilever 4 and the first driving member 21 and the wheel center 7 of the left wheel will become larger or smaller, and the ratio of the distance between the lower end mounting point of the second spring member 62 and the wheel center 7 of the right wheel to the distance between the mounting point between the second cantilever 5 and the second driving member 22 and the wheel center 7 of the right wheel will also become larger or smaller.

[0048] When the ratio becomes smaller, the stiffness of the spring member 6 will increase, and the overall stiffness of the suspension system 100 will also increase, so that the bumps and vibrations caused by the ground can be transmitted to the cabin more clearly, allowing the driver to feel the current ground conditions more clearly, thereby enhancing the driver's control over the vehicle. At the same time, the vehicle's stability and handling performance can also be significantly enhanced.

[0049] When the ratio becomes larger, the stiffness of the spring component 6 will decrease, and the overall stiffness of the suspension system 100 will also decrease, so that the bumps and vibrations caused by the ground can be effectively absorbed and buffered by the spring component 6, so that less vibration can be transmitted to the cabin, thereby significantly increasing the riding comfort in the cabin. At the same time, the comfort performance of the entire vehicle is also enhanced, improving the user experience.

[0050] According to the suspension system 100 in the above embodiment, a driving assembly 2 is provided to drive the first cantilever 4 and the second cantilever 5, so that the first cantilever 4 and the second cantilever 5 can respectively drive the first spring member 61 and the second spring member 62 to move, so as to adjust the ratio of the distance between the lower end mounting point of the first spring member 61 and the wheel center 7 of the left wheel to the distance between the mounting point between the first cantilever 4 and the first driving member 21 and the wheel center 7 of the left wheel, and the ratio of the distance between the lower end mounting point of the second spring member 62 and the wheel center 7 of the right wheel to the distance between the mounting point between the second cantilever 5 and the second driving member 22 and the wheel center 7 of the right wheel, thereby adjusting the stiffness of the first spring member 61 and the second spring member 62, as well as the overall stiffness of the suspension system 100, to change the handling performance and comfort performance of the entire vehicle.

[0051] In one embodiment of the present invention, Figures 1 to 5 As shown, the first brake assembly 31 and the second brake assembly 32 are both movably mounted on the subframe 1 in the horizontal direction, and the first driving member 21 is used to drive the first cantilever 4 to make the first brake assembly 31 move in the horizontal direction; the second driving member 22 is used to drive the second cantilever 5 to make the second brake assembly 32 move in the horizontal direction. In this embodiment, when the first driving member 21 and the second driving member 22 drive the first cantilever 4 and the second cantilever 5 to move respectively, the first cantilever 4 and the second cantilever 5 can respectively drive the first brake assembly 31 and the second brake assembly 32 to move, and then the first brake assembly 31 and the second brake assembly 32 can respectively drive the left wheel and the right wheel to move, so that the camber angle of the left wheel and the right wheel and the distance between the wheels can be adjusted respectively, and then the grip of the wheel can be adjusted, so that the grip of the wheel can adapt to different road conditions under the adjustment of the driving assembly 2, ensuring that the grip of the wheel is always in a more appropriate state, and the occurrence of excessive braking force or insufficient braking force will not occur, which effectively improves the safety performance of the whole vehicle.

[0052] According to the suspension system 100 in the above embodiment, a driving assembly 2 is provided to drive the first cantilever 4 and the second cantilever 5, so that the first cantilever 4 and the second cantilever 5 can respectively drive the first brake assembly 31 and the second brake assembly 32 to move, so that the first brake assembly 31 and the second brake assembly 32 can respectively adjust the camber angle of the left wheel and the right wheel and the distance between the wheels, thereby being able to adjust the grip of the entire vehicle to adapt to different road conditions and improve the safety performance of the entire vehicle.

[0053] In a specific embodiment of the present invention, Figures 1 to 5As shown, in the direction from the first cantilever 4 to the first brake assembly 31, the width of the first cantilever 4 gradually increases, and the lower end of the first spring member 61 is fixedly connected to the left end of the first cantilever 4; in the direction from the second cantilever 5 to the second brake assembly 32, the width of the second cantilever 5 gradually increases, and the lower end of the second spring member 62 is fixedly connected to the right end of the second cantilever 5. For example Figure 2 As shown, the narrower end of the first cantilever 4 and the narrower end of the second cantilever 5 are respectively connected to the first driving member 21 and the second driving member 22, and the wider end of the first cantilever 4 and the wider end of the second cantilever 5 are respectively connected to the first brake assembly 31 and the second brake assembly 32. In this way, the force on the first cantilever 4 and the second cantilever 5 can be made more reasonable, avoiding the problem of stress concentration on the first cantilever 4 and the second cantilever 5.

[0054] In one embodiment of the present invention, Figures 1 to 5 As shown, the drive assembly 2 further includes: a housing 23 and a mounting bracket 24; the first drive member 21 and the second drive member 22 are both mounted in the housing 23; the mounting bracket 24 is used to mount the housing 23 on the sub-frame 1 assembly. In this embodiment, the housing 23 can protect the first drive member 21 and the second drive member 22 to prevent the first drive member 21 and the second drive member 22 from being damaged; the mounting bracket 24 can ensure the installation stability of the housing 23, thereby ensuring that the first drive member 21 and the second drive member 22 can be stably supported, so as to ensure the driving stability of the first drive member 21 and the second drive member 22.

[0055] In a specific embodiment of the present invention, Figures 1 to 5 As shown, in the left-right direction, the shell 23 is located between the first cantilever 4 and the second cantilever 5, and the first driving member 21 and the second driving member 22 are respectively used to drive the first cantilever 4 and the second cantilever 5 to reciprocate in the left-right direction. In this way, the first cantilever 4 and the second cantilever 5 can respectively drive the first brake assembly 31 and the second brake assembly 32 to further adjust the camber angle of the wheel and the distance between the wheels to adjust the grip of the whole vehicle. At the same time, the first cantilever 4 and the second cantilever 5 that reciprocate in the left-right direction can also drive the first spring member 61 and the second spring member 62 to reciprocate in the left-right direction to adjust the comfort and controllability of the whole vehicle.

[0056] In one embodiment of the present invention, Figures 1 to 5As shown, the first driving member 21 and the second driving member 22 are both linear motors installed in the housing 23. In this embodiment, the linear motor has a simple structure, a small size, and high transmission accuracy, can occupy a small installation space, and provide high-precision transmission. At the same time, the linear motor also has the characteristics of fast response speed and high sensitivity, so that the linear motor can drive the first cantilever 4 and the second cantilever 5 in time, so that the grip and controllability of the whole vehicle can adapt to the current road conditions in time. In addition, the linear motor has a long service life, is safe and reliable, and can reduce or eliminate subsequent maintenance costs.

[0057] In a specific embodiment of the present invention, Figures 1 to 5 As shown, the first driving member 21 includes a left stator 211 and a left mover 212; the second driving member 22 includes a right stator 221 and a right mover 222; the left stator 211 and the right stator 221 are both installed in the housing 23 and are spaced apart in the left-right direction; the left mover 212 and the right mover 222 are coaxially arranged and respectively penetrated in the left stator 211 and the right stator 221. When the first driving member 21 and the second driving member 22 are driven respectively, the left mover 212 and the right mover 222 both reciprocate along the axial direction to drive the first cantilever 4 and the second cantilever 5. In this specific embodiment, the first driving member 21 and the second driving member 22 are each assembled using a set of stators and movers, so that the adjustment capabilities of the first driving member 21 and the second driving member 22 can be enhanced, so that the adjustment of the first driving member 21 and the second driving member 22 is more flexible and timely, and no motion interference will occur.

[0058] In one embodiment of the present invention, Figures 1 to 5 As shown, the first spring member 61 and the second spring member 62 are both coil springs, or the first spring member 61 and the second spring member 62 are both air springs. In this embodiment, since the suspension system 100 of this embodiment drives the first cantilever 4 and the second cantilever 5 through the driving assembly 2 to adjust the spring member 6, thereby adjusting the controllability and comfort of the whole vehicle, the spring member 6 in the suspension system 100 of this embodiment can be a coil spring or an air spring, which effectively expands the application scope of the suspension system 100 of this embodiment.

[0059] In one embodiment of the present invention, Figures 1 to 5As shown, the suspension system 100 further includes: a road surface detection sensor and a controller; the road surface detection sensor is used to obtain road surface information; and the controller is used to control the driving component 2 according to the road surface information. In this embodiment, the road surface monitoring sensor can monitor the current road condition and transmit the collected current road condition information to the controller, and the controller can determine what kind of adjustment the current vehicle should make according to the road condition information, and issue a driving instruction to the driving component 2 according to the judgment result, so that the driving component 2 drives the first cantilever 4 and the second cantilever 5 to adjust the vehicle's grip, handling and comfort.

[0060] The utility model also provides a vehicle having the above embodiment;

[0061] According to the vehicle of the embodiment of the utility model, by providing the suspension system 100 of the above embodiment, the grip, controllability and comfort of the whole vehicle under complex road conditions can be effectively improved.

[0062] In some examples, the suspension system 100 of the present invention may be a rear suspension system of a vehicle, that is, the subframe 1 is a rear subframe of the vehicle.

[0063] The other structures and operations of the suspension system 100 and the vehicle according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail herein.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0065] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A suspension system, characterized in that: include: A subframe and a drive assembly and a brake assembly mounted on the subframe, wherein the drive assembly includes a first drive member; the brake assembly includes a first brake assembly; and, a first cantilever and a spring member, wherein the first cantilever is drivingly connected between the first driving member and the first brake assembly, and the spring member comprises a first spring member, wherein the upper end of the first spring member is fixedly connected to the vehicle body, and the lower end of the first spring member is fixedly connected to the first cantilever, The first driving member is used to drive the first cantilever to move toward the first brake assembly or away from the first brake assembly.

2. The suspension system according to claim 1, characterized in that: The first brake assembly is movably mounted on the sub-frame in a horizontal direction, and the first driving member is used to drive the first cantilever and enable the first brake assembly to move in a horizontal direction.

3. The suspension system according to claim 2, characterized in that: In the direction from the first cantilever to the first brake assembly, the width of the first cantilever gradually increases, and the lower end of the first spring member is fixedly connected to the end of the first cantilever facing the first brake assembly.

4. The suspension system according to any one of claims 1 to 3, characterized in that: The subframe is a symmetrical structure that is symmetrical along a symmetry axis, the drive assembly further includes a second drive member that is symmetrically arranged with the first drive member along the symmetry axis, the brake assembly further includes a second brake assembly that is symmetrically arranged with the first brake assembly along the symmetry axis, the suspension system further includes a second cantilever that is symmetrically arranged with the first cantilever along the symmetry axis, and the spring member further includes a second spring member that is symmetrically arranged with the first spring member along the symmetry axis. The second cantilever is drivingly connected between the second drive member and the second brake assembly, The upper end of the second spring member is fixedly connected to the vehicle body, and the lower end is fixedly connected to the second cantilever. The second driving member is used to drive the second cantilever to move toward the second brake assembly or away from the second brake assembly.

5. The suspension system according to claim 4, characterized in that: The drive assembly also includes: A housing, wherein the housing is located between the first cantilever and the second cantilever, and the first driving member and the second driving member are both installed in the housing; A mounting bracket is used to mount the housing on a sub-frame assembly.

6. The suspension system according to claim 5, characterized in that: The first driving member and the second driving member are both linear motors installed in the housing.

7. The suspension system according to claim 6, characterized in that: The first driving member includes a left stator and a left mover; the second driving member includes a right stator and a right mover; The left stator and the right stator are both installed in the housing and are spaced apart in the left-right direction; The left mover and the right mover are coaxially arranged and are respectively inserted into the left stator and the right stator.

8. The suspension system according to claim 4, characterized in that: The first spring member and the second spring member are both coil springs, or the first spring member and the second spring member are both air springs.

9. The suspension system according to claim 1, characterized in that: Also includes: A road surface detection sensor, wherein the road surface detection sensor is used to obtain road surface information; A controller is used to control the driving assembly according to the road surface information.

10. A vehicle, characterized in that: A suspension system comprising any one of claims 1-9.

Images