Magnetorheological extrusion mode suspension, control method thereof, vehicle terminal and vehicle

Abstract

This application discloses a magnetorheological extrusion mode suspension and its control method, an on-board terminal, and a vehicle. The magnetorheological extrusion mode suspension includes: a sleeve; a bracket located inside the sleeve; a hollow support member located between the sleeve and the bracket; a magnetorheological fluid located within the cavity of the hollow support member; and a coil disposed on the bracket at a position corresponding to the cavity. The normal direction of the coil extends radially along the sleeve and passes through the magnetorheological fluid. Different current intensities result in different magnetic field intensities and different yield strengths of the magnetorheological fluid; different current directions result in different magnetic field directions, different magnetic flux directions, and different damping forces of the magnetorheological fluid. Therefore, the intensity and direction of the current can be adjusted according to the excitation conditions to form magnetorheological fluids with different yield strengths and different damping forces to adapt to vibrations in a wide frequency range and achieve better vibration isolation effects across the entire frequency range.

Description

Technical Field

[0001] This application relates to the field of suspension technology, specifically to a magnetorheological compression mode suspension and its control method, an on-board terminal, and a vehicle. Background Technology

[0002] The primary function of the suspension mount is to isolate the transmission of vibrations between the powertrain and the chassis. Vibrations transmitted from the chassis to the powertrain are mostly from road surface excitation, with low frequencies and large amplitudes; while vibrations transmitted from the motor system to the chassis are characterized by a wide frequency range and multiple vibration sources. Existing suspension technologies include rubber mounts, hydraulic mounts, and magnetorheological mounts, but these mounts are difficult to achieve good vibration isolation across the entire frequency range. Summary of the Invention

[0003] This application provides a magnetorheological compression mode suspension and its control method, an on-board terminal and a vehicle, to solve the technical problem that suspensions in related technologies have difficulty achieving good vibration isolation effects across the entire frequency domain.

[0004] The first aspect of this application provides a suspension in a magnetorheological extrusion mode, comprising:

[0005] casing;

[0006] The support is located inside the sleeve;

[0007] A hollow support component is located between the sleeve and the bracket;

[0008] Magnetorheological fluid is located inside the cavity of the hollow support member;

[0009] A coil is disposed on the bracket at a position corresponding to the cavity;

[0010] The normal to the surface where the coil is located extends radially along the sleeve and passes through the magnetorheological fluid.

[0011] Based on the above technical means, the intensity and direction of the current can be adjusted according to the excitation conditions, thereby forming magnetorheological fluids with different yield strengths and different damping forces to adapt to vibrations in a wide frequency range and achieve better vibration isolation effects across the entire frequency range.

[0012] Optionally, the number of cavities is the same as the number of coils, and there are at least two coils; the at least two coils include: an adjacent first coil and a second coil, wherein the current direction of the first coil is opposite to the current direction of the second coil.

[0013] According to the above-mentioned technical means, a portion of the magnetic field lines formed by two adjacent coils can form a closed magnetic field coil. In other words, the magnetic fields formed by two adjacent coils will superimpose on each other, increasing the strength of the magnetic field of the two adjacent coils.

[0014] Optionally, the number of the first coil is the same as the number of the second coil, and the first coil and the second coil are distributed alternately in sequence.

[0015] According to the above-mentioned technical means, the alternating distribution of the first and second coils is conducive to forming a stronger magnetic field in the cavity.

[0016] Optionally, there are two first coils and two second coils.

[0017] According to the above technical means, the magnetorheological fluid corresponding to the two first coils is in a squeezing mode, and the magnetorheological fluid corresponding to the two second coils is in a shearing mode.

[0018] Optionally, the hollow support member includes:

[0019] The first support and the second support are arranged radially along the sleeve;

[0020] A first connecting membrane and a second connecting membrane, wherein the two ends of the first connecting membrane are respectively connected to the first end of the first support and the first end of the second support, and the two ends of the second connecting membrane are respectively connected to the second end of the first support and the second support;

[0021] The sleeve, the bracket, the first support, the second support, the first connecting membrane, and the second connecting membrane surround and form the cavity.

[0022] According to the above-mentioned technical means, the hollow support component forms an open cavity, and the open cavity is sealed by the sleeve and bracket.

[0023] Optionally, the hollow support member is a vulcanized rubber support member.

[0024] Based on the above technical means, vulcanized rubber supports are used, which can easily recover their deformation after being deformed under pressure and have a long service life.

[0025] Optionally, the support includes:

[0026] ontology;

[0027] A winding section is provided on the body and is used to wind the coil;

[0028] A support portion is disposed on the winding portion and is used to support the first support body and the second support body.

[0029] According to the above technical means, the winding part and the support part of the bracket respectively play the roles of winding coil and supporting hollow support component.

[0030] Optionally, the width of the winding portion is smaller than the width of the support portion.

[0031] According to the above-mentioned technical means, the width of the winding part is small and corresponds to the width of the cavity, which is beneficial to applying the magnetic field to the magnetorheological liquid in the cavity.

[0032] Optionally, the body is a soft magnetic body, and the winding part is an iron core.

[0033] Based on the above technical means, the magnetic field strength can be improved by using a soft magnetic body and an iron core as the winding part.

[0034] Optionally, the body may be provided with through holes.

[0035] Based on the above technical means, it is easy to install on the equipment to be vibration-damped.

[0036] Optionally, the sleeve is a soft magnetic sleeve.

[0037] Based on the above technical means, the magnetic field strength can be further enhanced by using a soft magnetic sleeve.

[0038] A second aspect of this application provides a method for controlling a suspension in the magnetorheological extrusion mode as described above, comprising the following steps:

[0039] Obtain the environmental parameters of the suspended device;

[0040] Adjust the intensity and direction of the current in the coil according to the environmental parameters.

[0041] Optionally, the environmental parameters include: vibration parameters and directional parameters of the excitation experienced by the suspension;

[0042] The step of adjusting the intensity and direction of the current in the coil according to the environmental parameters includes:

[0043] Adjust the direction of current flow in the coil according to the directional parameters;

[0044] The intensity of the current in the coil is adjusted according to the vibration parameters.

[0045] A third aspect of this application provides an in-vehicle terminal, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor executes the program to implement the suspension control method of magnetorheological extrusion mode as described in the above embodiments.

[0046] A sixth aspect of this application provides a vehicle, including: a suspension in a magnetorheological compression mode as described in the above embodiments, or an on-board terminal as described in the above embodiments.

[0047] The beneficial effects of this application are as follows: Different current intensities result in different magnetic field intensities, and thus different yield strengths of the magnetorheological fluid; different current directions result in different magnetic field directions, different magnetic flux directions, and different damping forces of the magnetorheological fluid. Therefore, the intensity and direction of the current can be adjusted according to the excitation conditions to form magnetorheological fluids with different yield strengths and different damping forces, in order to adapt to vibrations in a wide frequency range and achieve better vibration isolation effects across the entire frequency range. Attached Figure Description

[0048] Figure 1 This is a side view of the suspension of the magnetorheological extrusion mode according to an embodiment of this application;

[0049] Figure 2 This is a first cross-sectional view of the suspension of a magnetorheological extrusion mode according to a specific embodiment of this application;

[0050] Figure 3 This is a second cross-sectional view of the suspension of a magnetorheological extrusion mode according to a specific embodiment of this application;

[0051] Figure 4 This is a schematic diagram of the structure of the bracket and coil according to a specific embodiment of this application;

[0052] Figure 5 This is a schematic diagram of a magnetic field coil formed by a coil according to a specific embodiment of this application.

[0053] Wherein, 1-sleeve; 2-support; 21-body; 211-through hole; 22-winding part; 23-support part; 3-hollow support; 31-first support body; 32-second support body; 33-first connecting membrane; 34-second connecting membrane; 4-magnetorheological fluid; 5-coil; 51-first coil; 52-second coil. Detailed Implementation

[0054] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0055] Please also refer to Figures 1-5 This application provides some embodiments of a suspension in a magnetorheological extrusion mode.

[0056] like Figures 1-2As shown, the suspension of the magnetorheological extrusion mode of this application includes: a sleeve 1, a bracket 2, a hollow support 3, a magnetorheological fluid 4, and a coil 5; the bracket 2 is located inside the sleeve 1; the hollow support 3 is located between the sleeve 1 and the bracket 2; the magnetorheological fluid 4 is located inside the cavity of the hollow support 3; the coil 5 is disposed on the bracket 2 at a position corresponding to the cavity; wherein, the normal of the surface where the coil 5 is located extends radially along the sleeve 1 and passes through the magnetorheological fluid 4.

[0057] Specifically, sleeve 1 refers to a cylindrical component with a through hole inside. Support 2 is a component used for support, specifically for supporting and mounting coil 5. Support 2 is located inside sleeve 1 and forms a gap with sleeve 1. Hollow support 3 is a hollow component that provides support. A cavity is formed in the center of hollow support 3. Hollow support 3 can deform, thereby changing the gap between sleeve 1 and support 2. Magnetorheological fluid 4 refers to a liquid formed from magnetic materials. Magnetorheological fluid 4 includes magnetic solid particles and a base liquid. The size of the magnetic solid particles is typically nanoscale, and materials such as Fe, Ni, and Co can be used. Magnetorheological fluid 4 may also include surfactants. When static, magnetorheological fluid 4 has no magnetic attraction. The magnetic solid particles are uniformly distributed in the base liquid, thus exhibiting the characteristics of a Newtonian fluid with low viscosity. When an external magnetic field is applied, magnetorheological fluid 4 exhibits magnetism, and the magnetic solid particles are distributed along the direction of the magnetic induction lines, forming magnetic chains of a certain strength, exhibiting the characteristics of a plastic fluid. Coil 5 refers to a conductive wire wound into a loop. The central axis of coil 5 faces the magnetorheological fluid 4 and is distributed radially along the sleeve 1. When coil 5 is energized, a magnetic field is generated near coil 5 and applied to the corresponding magnetorheological fluid 4, causing the magnetorheological fluid 4 to exhibit magnetism and form magnetic flux linkages. Different current intensities result in different magnetic field intensities and different yield strengths of the magnetorheological fluid 4; different current directions result in different magnetic field directions, different magnetic flux linkage directions, and different damping forces of the magnetorheological fluid 4. Therefore, the intensity and direction of the current can be adjusted according to the excitation conditions to form magnetorheological fluids 4 with different yield strengths and different damping forces to adapt to vibrations in a wide frequency range and achieve better vibration isolation effects across the entire frequency range.

[0058] The shape of sleeve 1 can be set as needed, and a cylindrical sleeve 1 is usually adopted. The shape of support 2 can be set as needed, and a cylindrical support 2 is usually adopted. The shape of hollow support 3 is adapted to the shape of sleeve 1 and support 2, and the magnetorheological fluid 4 is confined in the cavity and will not leak out. The normal of the plane where coil 5 is located points to the cavity. When coil 5 is energized, it forms a magnetic field, and the direction of the magnetic field is the normal of the plane where coil 5 is located, that is, the radial direction of sleeve 1. Therefore, the magnetic field passing through the cavity or the magnetorheological fluid 4 is a unidirectional magnetic field, and the formed magnetic flux extends radially along sleeve 1.

[0059] When used for vibration damping, the magnetorheological fluid 4 can be applied to vibration damping devices such as motors, and is installed on the device to be damped. If the vibration direction of the device to be damped is the same as the extension direction of the magnetic flux, the magnetorheological fluid 4 is in the compression mode, mainly generating compression dynamic response force, with a large range of dynamic stiffness and damping adjustment; if the vibration direction of the device to be damped is perpendicular to the extension direction of the magnetic flux, the magnetorheological fluid 4 is in the shear mode; if the vibration direction of the device to be damped forms an angle with the extension direction of the magnetic flux, the magnetorheological fluid 4 is in a mixed mode of compression and shear.

[0060] In one implementation of the embodiments of this application, such as Figures 2-3 As shown, the number of cavities is the same as the number of coils 5.

[0061] Specifically, each cavity corresponds to at least one coil 5, and the magnetic field formed by the coil 5 corresponding to each cavity is applied to the magnetorheological fluid 4 inside the cavity. Of course, the number of cavities can also be the same as the number of coils 5, and the magnetic field of the magnetorheological fluid 4 inside each cavity is provided by the coil 5 corresponding to the cavity.

[0062] In one implementation of the embodiments of this application, such as Figures 1-4 As shown, there are at least two coils 5; the at least two coils 5 include: an adjacent first coil 51 and a second coil 52, wherein the current direction of the first coil 51 is opposite to the current direction of the second coil 52.

[0063] Specifically, such as Figure 5 As shown, to increase the magnetic field strength, the magnetic fields formed by two adjacent coils 5 are in opposite directions relative to their respective cavities. When describing the direction of the magnetic field, it can be categorized as radially inward along the sleeve 1 and radially outward along the sleeve 1. When the magnetic fields formed by two adjacent coils 5 are in opposite directions relative to their respective cavities, a portion of the magnetic field lines formed by the two adjacent coils 5 can form a closed magnetic field coil. That is, the magnetic fields formed by the two adjacent coils 5 will superimpose, increasing the strength of the magnetic field between them. By configuring the currents of the adjacent first coil 51 and second coil 52 in opposite directions, the resulting magnetic fields are also in opposite directions relative to their respective cavities. The number of cavities is the same as the number of closed magnetic field coils.

[0064] In one implementation of the embodiments of this application, such as Figures 3-4 As shown, the number of first coils 51 is the same as the number of second coils 52, and the first coils 51 and the second coils 52 are distributed alternately in sequence.

[0065] Specifically, the number of coils 5 can be configured as an even number, and the number of the first coils 51 is the same as that of the second coils 52. The first coils 51 and the second coils 52 are alternately distributed, which is beneficial to forming a strong magnetic field in the cavity.

[0066] In an implementation manner of the embodiment of the present application, as Figure 1 , Figure 3 and Figure 4 shown, there are two first coils 51 and two second coils 52.

[0067] Specifically, the number of coils 5 is four, so there are two first coils 51 and two second coils 52. The two first coils 51 are arranged oppositely, and the two second coils 52 are arranged oppositely, thus forming four closed magnetic field coils. When the vibration direction of the vibration damping device is the connection direction of the two first coils 51, the magnetorheological fluid 4 corresponding to the two first coils 51 is in the extrusion mode, and the magnetorheological fluid 4 corresponding to the two second coils 52 is in the shear mode.

[0068] In an implementation manner of the embodiment of the present application, as Figures 1-3 shown, the hollow support 3 includes: a first support body 31, a second support body 32, a first connecting film 33 and a second connecting film 34; both the first support body 31 and the second support body 32 are arranged along the radial direction of the sleeve 1; two ends of the first connecting film 33 are respectively connected to the first end of the first support body 31 and the first end of the second support body 32, and two ends of the second connecting film 34 are respectively connected to the second end of the first support body 31 and the second end of the second support body 32; wherein, the sleeve 1, the bracket 2, the first support body 31, the second support body 32, the first connecting film 33 and the second connecting film 34 surround to form a cavity.

[0069] Specifically, the hollow support 3 can form a closed cavity, or can also form an open cavity. The open cavity is connected to the sleeve 1 and the bracket 2 to form a closed structure. The hollow support 3 includes a first support body 31, a first connecting film 33, a second support body 32 and a second connecting film 34 connected in sequence, thus forming a "mouth" - shaped structure, and the cavity has two openings, one on the top and one on the bottom. The hollow support 3 can also include a third connecting film and a fourth connecting film, which are connected to the first support body 31, the first connecting film 33, the second support body 32 and the second connecting film 34, so as to form a closed cavity. The third connecting film abuts against the bracket 2, and the fourth connecting film abuts against the inner side of the sleeve 1.

[0070] In an implementation manner of the embodiment of the present application, the hollow support 3 is a vulcanized rubber support member.

[0071] Specifically, the hollow support 3 is a rubber support member, specifically a vulcanized rubber support member, which is easy to recover its deformation after being compressed and has a long service life.

[0072] In one implementation of the embodiments of this application, such as Figure 1 and Figure 4 As shown, the bracket 2 includes: a body 21, a winding part 22, and a support part 23; the winding part 22 is disposed on the body 21 and is used to wind the coil 5; the support part 23 is disposed on the winding part 22 and is used to support the first support body 31 and the second support body 32.

[0073] Specifically, the winding part 22 is the component for winding the coil 5, and the support part 23 is the component for supporting the hollow support member 3. The support part 23 supports the first support body 31 and the second support body 32. Of course, the support part 23 can also support the third connecting membrane. The winding part 22 and the support part 23 of the bracket 2 respectively serve to wind the coil 5 and support the hollow support member 3.

[0074] In one implementation of the embodiments of this application, such as Figures 3-4 As shown, the width of the winding portion 22 is smaller than the width of the support portion 23.

[0075] Specifically, the width of the winding portion 22 is small and corresponds to the width of the cavity, which is beneficial for applying a magnetic field to the magnetorheological fluid 4 inside the cavity.

[0076] In one implementation of this application, the body 21 is a soft magnetic body, and the winding part 22 is an iron core.

[0077] Specifically, in order to increase the magnetic field strength, the main body 21 adopts a soft magnetic body, the winding part 22 adopts an iron core, and the support part 23 can also adopt an iron core.

[0078] In one implementation of the embodiments of this application, such as Figures 1-3 As shown, a through hole 211 is provided on the main body 21.

[0079] Specifically, a through hole 211 can be provided on the body 21 for mounting on the device to be vibration damped. For example, the output shaft of the motor can be passed through the through hole 211 on the body 21, thereby mounting the suspension on the output shaft and damping the output shaft through the suspension.

[0080] In one implementation of this application, the sleeve 1 is a soft magnetic sleeve.

[0081] Specifically, in order to further enhance the magnetic field strength, sleeve 1 is made of soft magnetic material.

[0082] like Figure 5 As shown, based on the suspension of the magnetorheological extrusion mode in any of the above embodiments, embodiments of this application also provide a control method for the suspension of the magnetorheological extrusion mode, including the following steps:

[0083] Step S100: Obtain the suspended environmental parameters.

[0084] Step S200: Adjust the intensity and direction of the current in the coil according to the environmental parameters.

[0085] Specifically, the suspension is installed on the equipment to be vibration-damped. Environmental parameters refer to the parameters of excitation from both the equipment and the environment. Besides the excitation from the equipment, the suspension is also affected by other environmental factors, and the environment may also influence the equipment. Based on the environmental parameters, the intensity and direction of the current in each coil are adjusted to ensure the magnetorheological fluid has a good vibration-damping effect on the equipment. Because the intensity and direction of the current can change as environmental parameters vary, the suspension can achieve a good vibration-damping effect across the entire frequency range.

[0086] Environmental parameters include: vibration parameters and directional parameters of the excitation experienced by the suspension; step S200 specifically includes:

[0087] Step S210: Adjust the direction of current flow in the coil according to the direction parameter.

[0088] Step S220: Adjust the intensity of the current in the coil according to the vibration parameters.

[0089] Specifically, when adjusting the intensity and direction of the current in the coil, the direction of the current is adjusted according to the excitation direction parameters, and the intensity of the current in the coil is adjusted according to the vibration parameters of the excitation. For example, the coil corresponding to the direction parameter is determined based on the direction parameter, and the direction of the current in the coil corresponding to the direction parameter, as well as the direction of the current in other coils, are determined. Then, the intensity of the current in each coil is adjusted according to the vibration parameters. Vibration parameters include the amplitude of the vibration; when the amplitude is large, the current intensity needs to be increased; when the amplitude is small, the current intensity needs to be decreased. Vibration parameters also include the frequency of the vibration; when the frequency is high, the current intensity needs to be decreased; when the frequency is low, the current intensity needs to be increased.

[0090] Based on the control method for the suspension using the magnetorheological compression mode of any of the above embodiments, embodiments of this application also provide an in-vehicle terminal. The in-vehicle terminal may include:

[0091] Memory, processor, and computer programs stored in memory and capable of running on the processor.

[0092] When the processor executes the program, it implements the suspension control method for the magnetorheological extrusion mode provided in the above embodiments.

[0093] Furthermore, the vehicle-mounted terminal also includes:

[0094] A communication interface used for communication between the memory and the processor.

[0095] The memory may include high-speed RAM (Random Access Memory) memory, and may also include non-volatile memory, such as at least one disk storage device.

[0096] If the memory, processor, and communication interface are implemented independently, they can be interconnected via a bus to communicate with each other. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc.

[0097] Specifically, if the memory, processor, and communication interface are integrated on a single chip, then the memory, processor, and communication interface can communicate with each other through internal interfaces.

[0098] The processor may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of this application.

[0099] Furthermore, based on the magnetorheological extrusion mode suspension of any of the above embodiments and the vehicle-mounted terminal of any of the above embodiments, embodiments of this application also propose a vehicle that includes the magnetorheological extrusion mode suspension of the above embodiments or the vehicle-mounted terminal of the above embodiments.

[0100] In the description of this specification, the references to terms such as "embodiment," "any embodiment," or "implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or implementations. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or implementations described in this specification, as well as the features of different embodiments or implementations.

[0101] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0102] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (FPGAs), field-programmable gate arrays (FPGAs), etc.

[0103] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

Claims

1. A magneto-rheological squeeze mode suspension, characterized in that, include: casing; The support is located inside the sleeve; A hollow support component is located between the sleeve and the bracket; Magnetorheological fluid is located inside the cavity of the hollow support member; A coil is disposed on the bracket at a position corresponding to the cavity; The normal to the surface where the coil is located extends radially along the sleeve and passes through the magnetorheological fluid.

2. The suspension in the magnetorheological extrusion mode according to claim 1, characterized in that, The number of cavities is the same as the number of coils, and there are at least two coils; the at least two coils include: an adjacent first coil and a second coil, wherein the current direction of the first coil is opposite to the current direction of the second coil.

3. The suspension of the magnetorheological extrusion mode according to claim 2, characterized in that, The number of the first coil is the same as the number of the second coil, and the first coil and the second coil are distributed alternately in sequence.

4. The suspension in the magnetorheological extrusion mode according to claim 3, characterized in that, The first coil has two parts, and the second coil has two parts.

5. The suspension in the magnetorheological extrusion mode according to claim 1, characterized in that, The hollow support component includes: The first support and the second support are arranged radially along the sleeve; A first connecting membrane and a second connecting membrane, wherein the two ends of the first connecting membrane are respectively connected to the first end of the first support and the first end of the second support, and the two ends of the second connecting membrane are respectively connected to the second end of the first support and the second support; The sleeve, the bracket, the first support, the second support, the first connecting membrane, and the second connecting membrane surround and form the cavity.

6. The suspension in the magnetorheological extrusion mode according to claim 5, characterized in that, The hollow support component is a vulcanized rubber support component.

7. The suspension in the magnetorheological extrusion mode according to claim 5, characterized in that, The support includes: ontology; A winding section is provided on the body and is used to wind the coil; A support portion is disposed on the winding portion and is used to support the first support body and the second support body.

8. The suspension in the magnetorheological extrusion mode according to claim 7, characterized in that, The width of the winding portion is smaller than the width of the support portion.

9. The suspension in the magnetorheological extrusion mode according to claim 7, characterized in that, The main body is made of soft magnetic material, and the winding part is made of iron core.

10. The suspension of the magnetorheological extrusion mode according to claim 7, characterized in that, The body is provided with through holes.

11. The suspension of the magnetorheological extrusion mode according to any one of claims 1-10, characterized in that, The sleeve is a soft magnetic sleeve.

12. A method for controlling the suspension in a magnetorheological extrusion mode as described in any one of claims 1-11, characterized in that, Includes the following steps: Obtain the environmental parameters of the suspended device; Adjust the intensity and direction of the current in the coil according to the environmental parameters.

13. The method for controlling the suspension in the magnetorheological extrusion mode according to claim 12, characterized in that, The environmental parameters include: vibration parameters and directional parameters of the excitation experienced by the suspension; The step of adjusting the intensity and direction of the current in the coil according to the environmental parameters includes: Adjust the direction of current flow in the coil according to the directional parameters; The intensity of the current in the coil is adjusted according to the vibration parameters.

14. A vehicle-mounted terminal, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the suspension control method for the magnetorheological extrusion mode as described in any one of claims 12-13.

15. A vehicle, characterized in that, include: The suspension of the magnetorheological extrusion mode as described in any one of claims 1-11, and the vehicle terminal as described in claim 14.

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