Suspension system and vehicle

Abstract

The utility model relates to a suspension system and a vehicle, the suspension system comprises at least two suspension motors and a motor controller, and the at least two suspension motors share the motor controller. The controllers of the at least two suspension motors on the same shaft are integrated, so that the number of parts is reduced, circuit connection is simplified, the weight of the whole vehicle is reduced, the spatial arrangement of the whole vehicle is optimized, and the cost of the whole vehicle is greatly reduced. And meanwhile, only one motor controller needs to be cooled, so that the arrangement of the cooling system is simpler and more efficient.

Description

Technical Field

[0001] The present disclosure relates to the technical field of suspension, and in particular, to a suspension system and a vehicle. Background Art

[0002] In the related art, a vehicle needs to be equipped with four sets of suspension motors, and correspondingly four motor controllers need to be set up, so there is a problem of high cost of the entire vehicle. Utility Model Content

[0003] The purpose of the present disclosure is to provide a suspension system and a vehicle, wherein the suspension system can solve the problem of high vehicle cost caused by carrying multiple motor controllers.

[0004] In order to achieve the above object, the present disclosure provides a suspension system, comprising:

[0005] at least two suspension motors;

[0006] Motor controller;

[0007] The at least two suspension motors share the motor controller.

[0008] Optionally, the suspension system further comprises:

[0009] first electric motor;

[0010] The first electric motor and the at least two suspension motors share the motor controller.

[0011] Optionally, the first electric motor includes a drive motor, and / or a generator, and / or a compressor.

[0012] Optionally, the first electric motor includes a drive motor, and the drive motor and the motor controller share a cooling system; or,

[0013] The first electric motor includes a generator, and the generator and the motor controller share a cooling system; or,

[0014] The first electric motor includes a drive motor and a generator, and the drive motor, the motor controller and the generator share a cooling system.

[0015] Optionally, the at least two suspension motors include a first suspension motor, a second suspension motor, a third suspension motor and a fourth suspension motor;

[0016] The motor controller includes a first motor controller located at the front of the vehicle body and a second motor controller located at the rear of the vehicle body.

[0017] The first suspension motor and the second suspension motor share the first motor controller, and the third suspension motor and the fourth suspension motor share the second motor controller.

[0018] Optionally, the suspension system further comprises:

[0019] a second electric motor located at the front of the vehicle body;

[0020] The second motor, the first suspension motor and the second suspension motor share the first motor controller;

[0021] or, a third electric motor located at the rear of the vehicle body;

[0022] The third electric motor, the third suspension motor, and the fourth suspension motor share the second motor controller.

[0023] Optionally, the suspension system further comprises:

[0024] a fourth electric motor located at the front of the vehicle body;

[0025] The fourth motor, the first suspension motor and the second suspension motor share the first motor controller;

[0026] and, a fifth electric motor located at the rear of the vehicle body;

[0027] The fifth electric motor, the third suspension motor, and the fourth suspension motor share the second motor controller.

[0028] Optionally, the at least two suspension motors include a first suspension motor, a second suspension motor, a third suspension motor and a fourth suspension motor;

[0029] The motor controller includes a third motor controller;

[0030] The first suspension motor, the second suspension motor, the third suspension motor and the fourth suspension motor share the third motor controller.

[0031] Optionally, the suspension system further comprises:

[0032] A sixth motor shares the third motor controller with the first suspension motor, the second suspension motor, the third suspension motor, and the fourth suspension motor.

[0033] Optionally, the motor controller has a cooling system, which is a cooling channel arranged in the motor controller, and a cooling medium inlet and a cooling medium outlet are respectively formed at two ends of the cooling channel.

[0034] Optionally, the motor controller has an input port and at least two output ports, the input port is used to connect to a high-voltage power supply, and the at least two output ports are respectively used to connect to the at least two suspension motors to convert the direct current of the high-voltage power supply into alternating current for the suspension motors.

[0035] Optionally, the suspension system further comprises a signal controller for receiving and sending information, and the motor controller is provided with a low-voltage interface, and the low-voltage interface is used to connect with the signal controller.

[0036] Optionally, a reserved port is provided on the motor controller, and the reserved port is connected to the input port to selectively input or output a DC voltage.

[0037] Optionally, the at least two output ports include a first output port and a second output port, the first output port and the second output port are arranged opposite to each other, and the input port and the reserved port are arranged on two adjacent sides of the motor controller.

[0038] According to a second aspect of the present disclosure, a vehicle is also provided, comprising the above-mentioned suspension system.

[0039] Through the above technical solution, in the suspension system provided by the present disclosure, the controllers of at least two suspension motors located on the same axis are integrated into one, and the motor controller can control multiple suspension motors at the same time, reducing the number of components such as controllers, simplifying circuit connection and assembly procedures, avoiding occupying too much space in the vehicle, reducing the weight of the whole vehicle, optimizing the space layout of the whole vehicle, and greatly reducing the cost of the whole vehicle. At the same time, only one motor controller needs to be cooled, and the layout of the cooling system is simpler and more efficient.

[0040] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0042] Figure 1 It is a structural schematic diagram of a suspension system provided by an exemplary embodiment of the present disclosure.

[0043] Figure 2 is a block diagram of a suspension system provided by an exemplary embodiment of the present disclosure.

[0044] Figure 3 It is a schematic diagram of the structure of a motor controller in a suspension system provided by an exemplary embodiment of the present disclosure.

[0045] Figure 4 It is a structural schematic diagram of a suspension system provided by an exemplary embodiment of the present disclosure.

[0046] Description of Reference Numerals

[0047] 11-left front wheel; 12-right front wheel; 13-left rear wheel; 14-right rear wheel; 21-first suspension motor; 22-second suspension motor; 23-third suspension motor; 24-fourth suspension motor; 3-motor controller; 31-first motor controller; 32-second motor controller; 301-input port; 302-first output port; 303-second output port; 304-low voltage interface; 305-reserved port; 306-cooling medium inlet; 307-cooling medium outlet; 4-air conditioning compressor; 5-drive motor controller; 6-battery pack. DETAILED DESCRIPTION

[0048] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0049] In the present disclosure, unless otherwise stated, directional words such as "front", "rear", "left", and "right" are generally used relative to the direction of travel of the vehicle. Figure 1 In the direction indicated by the arrow, "inside" and "outside" refer to the inside and outside of the corresponding component outline. The terms "first", "second" and the like are used to distinguish different components and do not have order and importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same reference numerals in different drawings represent the same or similar elements.

[0050] like Figure 1As shown, in a suspension system using a motor to control wheel damping, a plurality of suspension motors are provided, and the plurality of suspension motors include a first suspension motor 21 for adjusting the damping of the left front wheel 11, a second suspension motor 22 for adjusting the damping of the right front wheel 12, a third suspension motor 23 for adjusting the damping of the left rear wheel 13, and a fourth suspension motor 24 for adjusting the damping of the right rear wheel 14. In a related embodiment of the present disclosure, the suspension system further includes a plurality of motor controllers, that is, a motor controller is respectively provided for the first suspension motor 21, the second suspension motor 22, the third suspension motor 23, and the fourth suspension motor 24. Here, the suspension motor may be a linear motor, and the motor controller may be a device for controlling energy transmission between a high-voltage power supply and a suspension motor, capable of converting the direct current of the high-voltage power supply into the alternating current required for the operation of the suspension motor. The motor controller adjusts the damping force of each wheel by controlling the stroke of the suspension motor. In this technical solution, since a plurality of motor controllers need to be designed, more space is occupied, the circuit connection is more complicated, and the cost of the whole vehicle is higher.

[0051] To solve the above problems, in the present disclosure, multiple motor controllers are integrated into a design, such as Figure 1 and Figure 2 As shown, a suspension system is provided, including at least two suspension motors and a motor controller 3, and at least two suspension motors share the motor controller 3. Here, the number of suspension motors is not specifically limited, and of course it is not limited to suspension motors. The motor controller 3 can make adaptive designs for the number of suspension motors and the types of controlled motors as needed. In order to control multiple motors at the same time, the structural design of the motor controller 3 is embodied in one input port and multiple output ports. The multiple output ports are respectively connected to the suspension motor and other motors for separate control. As for the control strategies and algorithms of the internal chip and the control panel, corresponding improvements are also needed, which will not be introduced in detail here. Multiple suspension motors can adopt a universal structural design or different structural designs, all of which belong to the protection scope of the present disclosure.

[0052] Through the above technical solution, in the suspension system provided by the present disclosure, the controllers of at least two suspension motors located on the same axis are integrated into one, and the motor controller 3 can control multiple suspension motors at the same time, reduce the number of components such as controllers, simplify circuit connection and assembly process, avoid occupying too much space in the vehicle, reduce the weight of the whole vehicle, optimize the space layout of the whole vehicle, and greatly reduce the cost of the whole vehicle. At the same time, only one motor controller 3 needs to be cooled, and the layout of the cooling system is simpler and more efficient.

[0053] In the present disclosure, the suspension system also includes a first motor, and the first motor and at least two suspension motors share a motor controller 3, that is, the motor controller 3 is not limited to controlling the suspension motor, but can also control the first motor at the same time. The first motor can be at least one of a drive motor, a generator and a compressor. Taking the drive motor as an example, the whole vehicle is usually equipped with a separate drive motor controller to control the drive motor. The present disclosure integrates the drive motor controller and the suspension motor controller into a motor controller 3, and the drive motor controller can be directly omitted. The drive motor and the suspension motor are controlled simultaneously by the motor controller 3, further reducing the number of controllers and reducing costs.

[0054] The first motor and the motor controller 3 generate heat during operation. To ensure normal operation, cooling systems need to be set up separately. The cooling system can be air-cooled or liquid-cooled. Regardless of the cooling method, after the controller controlling the first motor is integrated with the suspension motor controller, only the motor controller 3 needs to be cooled to realize the sharing of the cooling system. That is, the present disclosure includes an embodiment of a shared cooling system for the drive motor and the motor controller, an embodiment of a shared cooling system for the generator and the motor controller, and an embodiment of a shared cooling system for the drive motor, the generator, and the motor controller 3. The cooling system can be an air-cooled component or a separately provided liquid cooling plate or a flow channel integrated in the motor controller 3.

[0055] like Figure 1 As shown, at least two suspension motors include a first suspension motor 21, a second suspension motor 22, a third suspension motor 23 and a fourth suspension motor 24, and the motor controller 3 includes a first motor controller 31 located at the front of the vehicle body and a second motor controller 32 located at the rear of the vehicle body. The first motor controller 31 is set in the front, and the second motor controller 32 is set in the rear, wherein the first suspension motor 21 and the second suspension motor 22 share the first motor controller 31, and the third suspension motor 23 and the fourth suspension motor 24 share the second motor controller 32. Multiple suspension motors can be arranged on the shock absorber springs of the corresponding wheel suspensions, respectively, the first motor controller 31 can be arranged in the front compartment of the vehicle body, and the second motor controller 32 can be arranged on the rear floor of the vehicle body, and are fixed by fasteners respectively, which is convenient for disassembly and maintenance. The suspension motors of the front suspension and the rear suspension are not much different, and the first motor controller 31 and the second motor controller 32 can be designed as the same structure, that is, a universal design is performed to save costs. Of course, different designs can also be adopted, all of which belong to the protection scope of the present disclosure.

[0056] After the integrated design, the control of the first suspension motor 21 and the second suspension motor 22 by the first motor controller 31 and the control of the third suspension motor 23 and the fourth suspension motor 24 by the second motor controller 32 can be performed separately and independently. One motor controller 3 independently controls the functions of the two suspension motors, and the adjustments to the left and right wheels are independent of each other and do not affect each other.

[0057] In an exemplary embodiment of the present disclosure, the suspension system also includes a second electric motor located at the front part of the vehicle body, and the second electric motor, the first suspension motor 21 and the second suspension motor 22 share a first motor controller 31, that is, in an embodiment using front-wheel drive and four-wheel drive, the second electric motor for driving and the two suspension motors of the front suspension share the same motor controller, thereby adjusting the damping of the wheel while ensuring driving.

[0058] In another exemplary embodiment of the present disclosure, the suspension system also includes a third motor located at the rear of the vehicle body, and the third motor, the third suspension motor 23 and the fourth suspension motor 24 share a second motor controller 32. That is, in an embodiment using rear-wheel drive and four-wheel drive, the third motor used for driving and the two suspension motors of the rear suspension share the same motor controller, thereby adjusting the damping of the wheel while ensuring the driving effect.

[0059] In another exemplary embodiment of the present disclosure, the suspension system also includes a fourth motor located at the front of the vehicle body and a fifth motor located at the rear of the vehicle body, that is, in the four-wheel drive embodiment, the fourth motor, the first suspension motor 21 and the second suspension motor 22 share a first motor controller 31, and the fifth motor, the third suspension motor 23 and the fourth suspension motor 24 share a second motor controller 32.

[0060] In another exemplary embodiment of the present disclosure, if conditions permit, the first suspension motor 21, the second suspension motor 22, the third suspension motor 23 and the fourth suspension motor 24 can share a third motor controller. Compared with the embodiment in which only the suspension motors of the front suspension share one motor controller or the embodiment in which only the suspension motors of the rear suspension share one motor controller, the number of motor controllers 3 required is reduced from two to only one, which has a higher degree of integration.

[0061] Furthermore, in another embodiment of the present disclosure, the suspension system also includes a sixth motor, and the sixth motor, the first suspension motor 21, the second suspension motor 22, the third suspension motor 23 and the fourth suspension motor 24 share a third motor controller. On the basis of the above embodiment, on the basis of multiple suspension motors sharing one motor controller, control over the motor is added, and the motor and multiple suspension motors share the same motor driver, thereby further reducing the cost of the entire vehicle.

[0062] In the above embodiment, the first motor, the second motor, the third motor, the fourth motor, the fifth motor and the sixth motor can be at least one of a drive motor, a generator and a compressor. The first motor controller 31 and the second motor controller 32 can adopt the same structural design. The difference between the third controller and the first motor controller 31 and the second motor controller 32 is that due to the different number and type of connected motors, the output port below will be designed accordingly.

[0063] The motor controller 3 can be designed as any appropriate structure. Figure 1 Taking the embodiment in which the first suspension motor 21 and the second suspension motor 22 of the mid-front suspension share the first motor controller 31 as an example, the structure of the first controller 31 is described in detail. Figure 3 As shown, the motor controller 3 has an input port 301, a first output port 302, and a second output port 303. The input port 301 is used to connect to a high-voltage power supply, and the first output port 302 and the second output port 303 are respectively used to connect to the first suspension motor 21 and the second suspension motor 22 on both sides. The first suspension motor 21 and the second suspension motor 22 can be AC ​​motors, driven and operated by three-phase AC power, and the first output port 302 and the second output port 303 can be connected to the suspension motor through a three-phase high-voltage line to convert the DC power of the high-voltage power supply into AC power for the suspension motor. In this way, the first suspension motor 21 and the second suspension motor 22 can share the DC power supply line of the high-voltage power supply and the motor controller, simplifying the line configuration. The second motor controller 32 can adopt the same structure, that is, the input port 301 is connected to the high-voltage power supply, and the first output port 302 and the second output port 303 are respectively connected to the third suspension motor 23 and the fourth suspension motor 24 on both sides, which will not be repeated here. The motor controller 3 has at least two output ports. When more suspension motors or other motors are integrated, the number of the output ports can be increased accordingly.

[0064] In the present disclosure, the suspension system also includes a signal controller for receiving and sending information. Here, the signal controller can be a suspension controller, which is used to receive wheel driving information and send system control information. The suspension controller is the control center of the vehicle suspension system, which can receive wheel driving information in real time, and analyze the vehicle working conditions and requirements based on the received information, so as to analyze the action requirements of each wheel suspension motor. The signal controller can also be a vehicle controller, which is used to receive vehicle driving information, such as vehicle speed, engine speed, etc. The signal controller can also be a controller after the suspension controller and the vehicle controller are integrated, which all belong to the protection scope of the present disclosure. A low-voltage interface 304 is provided on the motor controller 3, and the low-voltage interface 304 is used to connect to the signal controller. The low-voltage interface 304 serves as a controller signal interface circuit. The motor controller 3 is internally provided with a motor control circuit and a drive circuit, which can convert the direct current provided by the high-voltage power supply into the alternating current of the suspension motor or other motors through the control circuit according to the requirements issued by the signal controller, and drive the suspension motor and other motors to work as required.

[0065] In one embodiment of the present disclosure, the suspension system includes a first signal controller located at the front of the vehicle body and a second signal controller located at the rear of the vehicle body, and a low-voltage interface 304 is provided on the first motor controller 31, and the low-voltage interface is used to connect to the first signal controller. In this way, the low-voltage wiring harnesses of the first suspension motor 21 and the second suspension motor 22 connected to the motor controller can be shared, simplifying the low-voltage control circuit. Similarly, the second motor controller 32 is provided with a low-voltage interface for connecting to the second signal controller. The signal controller can send the received signal to the motor controller, and at the same time receive the relevant information of the suspension motor fed back by the motor controller, so as to better control the suspension motor, thereby better adjusting the damping force of the suspension system.

[0066] In this disclosure, Figure 3 As shown, the first motor controller 31 is provided with a reserved port 305, which is connected to the input port 301 to selectively input or output a DC voltage. The reserved port 305 is connected to the input port 301 inside the motor controller 3. When the space for arranging the high-voltage line outside the input port 301 is limited, the reserved port 305 can be used as a spare input port to connect a high-voltage power supply; of course, it can also be used as a DC output port to power other high-voltage devices. Here, Figure 4 As shown, the reserved port 305 can be connected to the air-conditioning compressor 4 to supply power to it. In this way, the air-conditioning compressor 4 does not need to be connected to the battery pack 6 to obtain power, which saves line layout and makes the circuit layout more concise.

[0067] like Figure 4As shown, the high-voltage power supply takes a battery pack 6 as an example. The front and rear ends of the battery pack 6 are respectively provided with DC interfaces, through which power can be supplied to external high-voltage devices. The suspension system provided by the present disclosure includes a front suspension and a rear suspension. Depending on the vehicle model, the front suspension and / or the rear suspension can be equipped with a drive motor and a drive motor controller 5. In an embodiment where a drive motor and a drive motor controller 5 are not equipped, as shown in FIG. Figure 1 As shown, the motor controller 3 is directly connected to the battery pack 6, that is, the input port 301 is directly connected to the output port of the battery pack 6. In the embodiment equipped with the drive motor and the drive motor controller 5, as shown in FIG. Figure 3 As shown, taking the front suspension as an example, the input port 301 of the first motor controller 31 is connected to the output port of the battery pack 6 through the drive motor controller 5. The drive motor controller 5 is provided with a DC output port, and the input port 301 of the first motor controller 31 is connected to the DC output port through a high-voltage line. The DC power of the battery pack 6 is supplied to the drive motor controller 5, and is also shunted through the drive motor controller 5 to supply the first motor controller 31. In this way, there is no need to increase the power supply port of the battery pack 6, and the first motor controller 31 is arranged in the front cabin, which is closer to the drive motor controller 5 than the battery pack 6, and the length of the DC harness can be shortened. In this embodiment, the front cabin will also be arranged with an air-conditioning compressor 4, and the battery pack 6 is also required to supply DC power. The reserved port 305 on the first motor controller 31 can be connected to the air-conditioning compressor 4, and the DC power is shunted to the air-conditioning compressor 4. Of course, the drive motor controller 5 can also be provided with a power supply port for connecting to the air-conditioning compressor 4, so that the air-conditioning compressor 4 can also draw power from the drive motor controller 5. The power distribution scheme of the rear suspension is similar to that of the front suspension. When the rear axle is equipped with a drive motor and a drive motor controller 5, the second motor controller 32 draws power from the drive motor controller 5 of the rear suspension; when the drive motor is not equipped, power is drawn from the rear end interface of the battery pack 6. The second motor controller 32 has a reserved port 305. If the input port 301 is not convenient for arranging an external DC harness, the reserved port 305 can be used as a DC input port. Due to the different boundaries of each vehicle model, this reservation method can improve the adaptability of the second motor controller 32, with more harness layout methods, which can be selected according to needs.

[0068] The above-mentioned interfaces can be adjusted and arranged as needed. In the present disclosure, the first output port 302 and the second output port 303 are arranged relative to each other, which is convenient for connecting with the first suspension motor 21 and the second suspension motor 22 on both sides. The input port 301 and the reserved port 305 are arranged on two adjacent sides of the first motor controller 31, which is convenient for connection inside the first motor controller 31.

[0069] The motor controller 3 generates heat when it is working and needs to be cooled by a cooling medium. Figure 3As shown, a cooling channel is provided in the motor controller 3, and a cooling medium inlet 306 and a cooling medium outlet 307 are formed at both ends of the cooling channel. Here, the cooling medium can be a coolant or a cooling gas, both of which belong to the protection scope of the present disclosure. By connecting the motor controller 3 to the cooling circuit of the whole vehicle and cooling it, the normal operation of the motor controller 3 is ensured. At the same time, there is no need to connect high-voltage wire harnesses and cooling pipelines between the motor controllers, which greatly simplifies the power distribution system and cooling system of the whole vehicle.

[0070] In the suspension system provided by the present invention, a DC power supply harness and a low-voltage harness are shared, the cooling connection pipelines between multiple motor controllers are reduced, the number of components is reduced, the high-voltage power distribution scheme of the whole vehicle is simplified, the cost is reduced and the layout and space of the whole vehicle are optimized. It is not affected by the vehicle drive configuration, has a wide range of applications, and has obvious advantages.

[0071] According to a second aspect of the present disclosure, a vehicle is also provided, the vehicle comprising the suspension system described above. The vehicle has all the beneficial effects of the suspension system described above, which will not be described in detail herein.

[0072] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0073] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0074] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A suspension system, characterized in that: include: at least two suspension motors; Motor controller (3); The at least two suspension motors share the motor controller (3).

2. The suspension system according to claim 1, characterized in that: The suspension system further comprises: a first electric motor; The first electric motor and the at least two suspension motors share the motor controller (3).

3. The suspension system according to claim 2, characterized in that: The first electric motor includes a drive motor, and / or a generator, and / or a compressor.

4. The suspension system according to claim 3, characterized in that: The first electric motor comprises a drive motor, and the drive motor and the motor controller (3) share a cooling system; or, The first electric motor comprises a generator, and the generator and the motor controller (3) share a cooling system; or, The first electric motor comprises a drive motor and a generator, and the drive motor, the motor controller (3) and the generator share a cooling system.

5. The suspension system according to claim 1, characterized in that: The at least two suspension motors include a first suspension motor (21), a second suspension motor (22), a third suspension motor (23) and a fourth suspension motor (24); The motor controller (3) comprises a first motor controller (31) located at the front of the vehicle body and a second motor controller (32) located at the rear of the vehicle body. The first suspension motor (21) and the second suspension motor (22) share the first motor controller (31), and the third suspension motor (23) and the fourth suspension motor (24) share the second motor controller (32).

6. The suspension system according to claim 5, characterized in that: The suspension system further comprises: a second electric motor located at the front of the vehicle body; The second motor, the first suspension motor (21) and the second suspension motor (22) share the first motor controller (31); or, a third electric motor located at the rear of the vehicle body; The third electric motor, the third suspension motor (23) and the fourth suspension motor (24) share the second motor controller (32).

7. The suspension system according to claim 5, characterized in that: The suspension system further comprises: a fourth electric motor located at the front of the vehicle body; The fourth motor, the first suspension motor (21) and the second suspension motor (22) share the first motor controller (31); and, a fifth electric motor located at the rear of the vehicle body; The fifth electric motor, the third suspension motor (23) and the fourth suspension motor (24) share the second motor controller (32).

8. The suspension system according to claim 1, characterized in that: The at least two suspension motors include a first suspension motor (21), a second suspension motor (22), a third suspension motor (23) and a fourth suspension motor (24); The motor controller includes a third motor controller; The first suspension motor (21), the second suspension motor (22), the third suspension motor (23) and the fourth suspension motor (24) share the third motor controller.

9. The suspension system according to claim 8, characterized in that The suspension system further comprises: A sixth motor, the sixth motor shares the third motor controller with the first suspension motor (21), the second suspension motor (22), the third suspension motor (23) and the fourth suspension motor (24).

10. The suspension system according to any one of claims 1 to 9, characterized in that: The motor controller (3) has a cooling system, which is a cooling channel arranged in the motor controller (3), and a cooling medium inlet (306) and a cooling medium outlet (307) are respectively formed at two ends of the cooling channel.

11. The suspension system according to any one of claims 1 to 9, characterized in that: The motor controller (3) has an input port (301) and at least two output ports, the input port (301) being used to connect to a high-voltage power supply, and the at least two output ports being used to connect to the at least two suspension motors, respectively, so as to convert the direct current of the high-voltage power supply into alternating current for the suspension motors.

12. The suspension system according to claim 11, characterized in that The suspension system also includes a signal controller for receiving and sending information. The motor controller is provided with a low-voltage interface (304), and the low-voltage interface (304) is used to connect to the signal controller.

13. The suspension system according to claim 11, characterized in that The motor controller is provided with a reserved port (305), and the reserved port (305) is connected to the input port (301) to selectively input or output a direct current voltage.

14. The suspension system according to claim 13, characterized in that The at least two output ports include a first output port (302) and a second output port (303), the first output port (302) and the second output port (303) are arranged opposite to each other, and the input port (301) and the reserved port (305) are arranged on two adjacent sides of the motor controller (3).

15. A vehicle, characterized in that: A suspension system comprising any one of claims 1-14.

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