Steering-by-wire limiting assembly, steering-by-wire system and vehicle

Abstract

The invention relates to the field of vehicles, and provides a steering angle limiting assembly applied to steer-by-wire, a steer-by-wire system and a vehicle. The steering angle limiting assembly applied to the steer-by-wire comprises a connecting sleeve, at least one circular ring body and a fixing piece, wherein the periphery of the connecting sleeve is sequentially sleeved with the at least one circular ring body in the axial direction. The at least one circular ring body sequentially sleeves the periphery of the connecting sleeve in the axial direction, a clamping part is arranged at the first end of the connecting sleeve, a fixing piece is arranged at the second end of the connecting sleeve, and the fixing piece is provided with a limiting part. The first end face and the second end face, opposite in the axial direction, of each circular ring body are each provided with a protruding part formed in the axial direction in a protruding mode, the protruding part of the first end face is used for being in limiting fit with the clamping part or the protruding part on the second end face of one adjacent circular ring body in the circumferential direction, and the protruding part of the second end face is in limiting fit with the limiting part in the circumferential direction. Installation of the connecting sleeve and the rotating shaft and assembly of the connecting sleeve, the circular ring body and the fixing piece are all simple and easy to operate. The connecting sleeve, the circular ring body and the fixing piece are easy to machine and low in cost.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to a steering angle limiting component for steer-by-wire, a steer-by-wire system, and a vehicle. Background Art

[0002] The steer-by-wire system eliminates the mechanical connection of the intermediate shaft in the traditional steering system. If an angle limiting mechanism is not added, the steering wheel will be able to rotate without any angle restriction. This rotation will damage the steering system and affect the normal driving of the vehicle.

[0003] Related art angle limiting mechanisms, such as those in the nut-screw, gear-rack, and planetary gear assembly formats, suffer from complex structures, making assembly difficult and costly. Therefore, reducing the assembly difficulty and cost of angle limiting mechanisms has become a pressing technical challenge for those skilled in the art. Summary of the Invention

[0004] The present application provides a turning angle limiting component for steer-by-wire, a steer-by-wire system and a vehicle. The turning angle limiting component for steer-by-wire has the advantages of simple installation and low cost.

[0005] In one aspect, the present application provides a steer-by-wire angle limiting assembly, the steer-by-wire angle limiting assembly comprising: a connecting sleeve, the connecting sleeve having a first end and a second end opposite to each other in the axial direction, the first end being provided with a clamping portion;

[0006] At least one annular body, at least one of the annular bodies being sequentially sleeved on the periphery of the connecting sleeve along the axial direction, the annular body having a first end face and a second end face opposite to each other along the axial direction, the first end face and the second end face each having a convex portion formed by protruding along the axial direction, the convex portion of the first end face being used to form a limited fit with the convex portion on the second end face of the clamping portion or an adjacent annular body in the circumferential direction;

[0007] The fixing member is provided at the second end of the connecting sleeve, and the fixing member has a limiting portion, and the limiting portion forms a limiting fit with the convex portion of the second end surface in the circumferential direction.

[0008] In some embodiments, on the same annular body, the convex portion of the first end surface and the convex portion of the second end surface are spaced apart along the circumferential direction.

[0009] In some embodiments, there are two clamping portions, which are arranged radially opposite to each other, and there are two convex portions on the first end surface, which are arranged on two radially opposite sides of the annular body; and / or

[0010] There are two convex portions on the second end surface, and the two second end surfaces are arranged on two radially opposite sides of the annular body. There are two limiting portions, and the two limiting portions are arranged on two radially opposite sides of the annular body.

[0011] In some embodiments, an intermediate sleeve is provided between the connecting sleeve and the at least one annular body in the radial direction.

[0012] In some embodiments, the fixing member is a circular ring, the second end of the connecting sleeve extends into the fixing member, and a bearing is provided between the second end and the fixing member.

[0013] In some embodiments, the connecting sleeve is stepped, and the diameter of the second end is smaller than the diameter of other parts of the connecting sleeve;

[0014] The inner wall of the fixing member is provided with a step, and the end portion of the bearing abuts against the step.

[0015] In some embodiments, the first end of the connecting sleeve extends radially to form a receiving portion, and the side of the receiving portion facing the second end is connected to the clamping portion.

[0016] In some embodiments, a concave portion corresponding to the convex portion of the second end surface in the axial direction is formed on the first end surface, and a concave portion corresponding to the convex portion of the first end surface in the axial direction is formed on the second end surface.

[0017] On the other hand, the present application provides a steer-by-wire system, which includes the above-mentioned steering angle limiting component applied to steer-by-wire.

[0018] On the other hand, the present application provides a vehicle, comprising the above-mentioned steer-by-wire system.

[0019] The embodiments of the present application provide a steering angle limiting component, a steering angle limiting system and a vehicle for wire-controlled steering, wherein the steering angle limiting component for wire-controlled steering is connected to the steering wheel by providing a connecting sleeve connected to the rotating shaft, and a limiting fit is formed between the connecting sleeve and the ring body by sleeve-arranging at least one ring body on the periphery of the connecting sleeve, a clamping portion is provided on the connecting sleeve, and a convex portion is provided on the ring body to form a limiting fit with the clamping portion in the circumferential direction, and the connecting sleeve and the ring body are limited. The convex portion on the first end face of one of the two adjacent ring bodies is limited by the convex portion on the second end face of the other, so that the connecting sleeve drives at least one ring body to rotate, and the fixing part connected to other parts of the vehicle is provided, and a limiting portion is provided on the fixing part to form a limiting fit with the convex portion on the second end face, so that the fixing part and the ring body are limited.

[0020] The installation of the connecting sleeve and the rotating shaft, the assembly of the connecting sleeve, the annular body and the fixing member, and the installation of the fixing member and the vehicle component, such as the end cover of the reduction mechanism housing, are all simple and easy to operate. The connecting sleeve, the annular body and the fixing member are easy to process and have low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 An exploded diagram of the structure of a steering angle limiting assembly applied to steer-by-wire provided in an embodiment of the present application;

[0023] Figure 2 A schematic structural diagram of a connecting sleeve and an annular body provided in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of the structure of a torus provided in an embodiment of the present application;

[0025] Figure 4 A schematic structural diagram of a ring body and a fixing member provided in an embodiment of the present application;

[0026] Figure 5 A schematic diagram of the structural assembly of a steering angle limiting component for steer-by-wire provided in an embodiment of the present application;

[0027] Figure 6 Schematic diagram of the angle limiting component applied to the wire control steering provided in the embodiment of the present application Figure 1 ;

[0028] Figure 7 Schematic diagram of the angle limiting component applied to the wire control steering provided in the embodiment of the present application Figure 2 ;

[0029] Figure 8 Schematic diagram of the angle limiting component applied to the wire control steering provided in the embodiment of the present application Figure 3 ;

[0030] Figure 9 A schematic diagram of a steering angle limiting assembly for steer-by-wire provided in an embodiment of the present application being installed in a reduction mechanism housing;

[0031] Figure 10 A schematic diagram of the HWA structure provided in an embodiment of the present application.

[0032] Description of Figure Numbers:

[0033] 1. Connecting sleeve; 11. First end; 12. Second end; 13. Clamping portion; 14. Receiving portion;

[0034] 2. Ring body; 21. First end surface; 22. Second end surface; 23. Convex portion; 24. Concave portion;

[0035] 3. Fixing piece; 31. Limiting part; 32. Step;

[0036] 4. Intermediate sleeve; 5. Bearing; 6. Rotating shaft; 7. Speed reduction mechanism housing; 8. End cover. DETAILED DESCRIPTION

[0037] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features therein can be combined with each other in the absence of conflict.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0039] HWA (hand wheel actuator), a wire-controlled steering feel simulator, is a component of wire-controlled steering technology. Since the wire-controlled steering system eliminates the intermediate shaft mechanical connection in the traditional steering system, the design layout of the vehicle chassis front suspension and cabin becomes more flexible. Figure 10 Because steer-by-wire systems eliminate the mechanical intermediate shaft connection found in traditional steering systems, without an angle limiter, the steering wheel attached to the HWA can rotate without any angle limit. This rotation could damage components such as the combination switch, clock spring, and airbag coil mounted on the HWA. Furthermore, steering wheel rotation beyond the desired angle of travel disrupts the HWA's steering angle signal, making it difficult to control the HWA and affecting normal vehicle operation.

[0040] However, the angle limiting mechanism in the related art has problems such as complex structure, difficult parts processing, difficult assembly, and high cost. Figures 1 to 5As shown, an embodiment of the present application provides a turning angle limiting assembly for wire-controlled steering, comprising a connecting sleeve 1, at least one annular body 2, and a fixing member 3. The at least one annular body 2 is sequentially sleeved on the periphery of the connecting sleeve 1 along the axial direction. The connecting sleeve 1 has a first end 11 and a second end 12 opposite to each other along the axial direction. The first end 11 is provided with a clamping portion 13, and the second end 12 is provided with a fixing member 3. The fixing member 3 has a limiting portion 31. Each annular body 2 has a first end face 21 and a second end face 22 opposite to each other along the axial direction. The first end face 21 and the second end face 22 both have a convex portion 23 protruding along the axial direction. The convex portion 23 of the first end face 21 is used to form a limiting fit with the clamping portion 13 or the convex portion 23 on the second end face 22 of an adjacent annular body 2 in the circumferential direction. The convex portion 23 of the second end face 22 forms a limiting fit with the limiting portion 31 in the circumferential direction.

[0041] When the annular body 2 is provided with one, refer to Figure 2 and Figure 4 The convex portion 23 of the first end face 21 forms a limiting fit with the clamping portion 13, and the convex portion 23 on the second end face 22 forms a limiting fit with the limiting portion 31. When the annular body 2 is provided with multiple Figure 1 , multiple annular bodies 2 are sequentially sleeved on the periphery of the connecting sleeve 1 along the axial direction, the convex portion 23 of the first end face 21 of the annular body 2 near the first end 11 forms a limiting fit with the clamping portion 13, the convex portion 23 of the second end face 22 of the other annular body 2 near the second end 12 forms a limiting fit with the limiting portion 31, and the convex portion 23 of the second end face 22 of one of the two adjacent annular bodies 2 forms a limiting fit with the convex portion 23 of the first end face 21 of the other.

[0042] like Figure 1 As shown, the connecting sleeve 1 is used to connect with the rotating shaft 6, and the rotation of the rotating shaft 6 drives the connecting sleeve 1 to rotate. Specifically, the rotating shaft 6 can be a spline shaft, and the inner wall of the connecting sleeve 1 is provided with a spline structure that cooperates with the spline shaft. Of course, the rotating shaft 6 and the connecting sleeve 1 can also be connected by means of clamping, bonding or shaft pin plugging. The rotating shaft 6 is directly or indirectly connected to the steering wheel. Figure 9 The fixing member 3 is connected to a component in the vehicle's steering system, which may be an end cap 8 or a column of the reduction mechanism housing 7. For ease of description, the embodiment of the present application takes the example of setting the angle limiting component in the reduction mechanism housing 7 as an example.

[0043] like Figure 1 and Figure 5As shown, the embodiment of the present application provides an angle limiting component for wire-controlled steering. When in use, the rotating shaft 6 is the input shaft of the reduction mechanism. The rotating shaft 6 rotates counterclockwise / clockwise to drive the connecting sleeve 1 to rotate. When the connecting sleeve 1 rotates until the clamping portion 13 abuts the convex portion 23 of the first end face 21 of the annular body 2, the annular body 2 rotates with the connecting sleeve 1. When the annular body 2 rotates with the connecting sleeve 1 until the convex portion 23 of the second end face 22 abuts the limiting portion 31, the rotating shaft 6, the connecting sleeve 1 and the annular body 2 are restricted by the limiting portion 31 and no longer rotate. At this time, the angle rotated by the rotating shaft 6 is the limit angle of unidirectional rotation of the steering wheel (either counterclockwise / clockwise).

[0044] Different vehicles have different requirements for the steering wheel rotation limit angle. This application can achieve different angle ranges of steering wheel rotation limit angles by increasing the number of circular bodies 2. Figure 5 When multiple annular bodies 2 are provided, the first annular body 2 near the first end 11 rotates first with the connecting sleeve 1, and the second annular body 2 near the first annular body 2 rotates with the first annular body 2, successively transmitting the rotational torque of the rotating shaft 6 to the last annular body 2. When the last annular body 2 rotates until the protrusion 23 on its second end face 22 abuts the limiter 31, the rotating shaft 6 is restricted by the fixing member 3 and no longer rotates. Each annular body 2 has the same structure and can be processed by stamping, which is easy to process, low in cost, and meets the requirements of mass production.

[0045] In the steering-by-wire control angle limiting assembly provided in the embodiments of the present application, the connection sleeve 1 is easily mounted on the rotating shaft 6. The connection sleeve 1, the annular body 2, and the fixing member 3 are assembled, and the fixing member 3 is mounted on the end cap of the reduction mechanism housing. The connection sleeve 1, the annular body 2, and the fixing member 3 are easily machined and cost-effective.

[0046] refer to Figure 3 In some feasible embodiments, on the same annular body 2, the convex portion 23 of the first end face 21 and the convex portion 23 of the second end face 22 are spaced apart along the circumferential direction. If the convex portion 23 of the first end face 21 and the convex portion 23 of the second end face 22 correspond to each other along the axial direction, during use of the angle limiting assembly used for wire-controlled steering, the convex portion 23 of the first end face 21 and the convex portion 23 of the second end face 22 of the annular body 2 are subjected to tangential thrust at the connection between the convex portion 23 and the main body of the annular body 2 on both end faces, making the annular body 2 susceptible to damage. Therefore, the convex portion 23 of the first end face 21 and the convex portion 23 of the second end face 22 are spaced apart along the circumferential direction, which can effectively increase the service life of the annular body 2 and make the annular body 2 less susceptible to damage.

[0047] refer to Figure 3In some feasible embodiments, the first end surface 21 includes two protrusions 23, which are disposed on radially opposite sides of the annular body 2. Correspondingly, two clamping portions 13 are provided, which are radially opposite to each other. Furthermore, the second end surface 22 includes two protrusions 23, which are disposed on radially opposite sides of the annular body 2. Furthermore, two stoppers 31 are provided, which are disposed on radially opposite sides of the annular body 2.

[0048] The two protrusions 23 are provided on radially opposite sides of the annular body 2 so that the two protrusions 23 of the first end face 21 abut against the two clamping portions 13 or the two protrusions 23 of the second end face 22 simultaneously. That is, when one of the two protrusions 23 of the first end face 21 abuts against one of the two clamping portions 13, the other of the two protrusions 23 of the first end face 21 also abuts against the other of the two clamping portions 13. With this arrangement, when the rotational torque of the rotating shaft 6 is constant, the force intensity per unit area is reduced by increasing the contact area of the protrusions 23, the clamping portion 13, and the limiting portion 31, thereby reducing the degree of deformation of the protrusions 23, the clamping portion 13, and the limiting portion 31.

[0049] At the same time, during the rotation of the rotating shaft 6, the two protrusions 23 of the first end face 21 abut against the two clamping parts 13 or the two protrusions 23 of the second end face 22, and the force on the annular body 2 is distributed on two opposite sides in the radial direction, so that the annular body 2 is evenly distributed with force and is not easily damaged, further improving the service strength and life of the annular body 2, the connecting sleeve 1 and the fixing part 3.

[0050] The steering angle limiting assembly for steer-by-wire provided in the embodiments of the present application can achieve steering wheel rotation limit angles within different angular ranges by increasing the number of annular bodies 2. Furthermore, considering that the two protrusions 23 on the first end face 21 of the annular body 2 and the two clamping portions 13 or the two protrusions 23 on the second end face 22 occupy the space in the circumferential direction where the rotation angle can occur, the steering wheel rotation limit angle can be further adjusted by adjusting the circumferential length of the protrusions 23, the clamping portions 13, and even the limiting portion 31.

[0051] The steering angle limit component used in wire-controlled steering can achieve the movement process of the steering wheel rotation limit angle in different angle ranges when used. The steering wheel rotation limit angle is 540° clockwise / counterclockwise as an example. Figures 6 to 8 , Figure 6 The diagram shows the relative positions of the connecting sleeve 1, the at least one annular body 2 and the fixing member 3 when the steering wheel is in the initial position, that is, when the angle limiting component used for wire-controlled steering has not yet played a limiting role. At this time, the connecting sleeve 1 can rotate clockwise / counterclockwise with the steering wheel. Figure 7This is the limit position when the steering wheel is rotated one and a half turns (540°) counterclockwise, at which point the convex portion 23 of the first end face 21 abuts against the clamping portion 13, the convex portion 23 of the second end face 22 of one of the two adjacent annular bodies 2 abuts against the convex portion 23 of the first end face 21 of the other, and the convex portion 23 of the second end face 22 abuts against the limiting portion 31. Figure 8 It is the limit position when the steering wheel is turned one and a half circles (540°) clockwise.

[0052] refer to Figure 1 In some feasible embodiments, an intermediate sleeve 4 is provided radially between the connecting sleeve 1 and at least one annular body 2. When the connecting sleeve 1 rotates relative to the annular body 2, the outer circumferential surfaces of the annular body 2 and the connecting sleeve 1 inevitably wear. The intermediate sleeve 4 is provided between the connecting sleeve 1 and the annular body 2 to space the annular body 2 from the connecting sleeve 1. When the annular body 2 wears the intermediate sleeve 4, the intermediate sleeve 4 can be replaced without disassembling the connecting sleeve 1 and other components such as the rotating shaft 6. The replacement is simple and easy to operate. In addition, the intermediate sleeve 4 is low in cost, which reduces the overall maintenance cost and increases the service life of the connecting sleeve 1.

[0053] refer to Figure 1 and Figure 4 The fixing member 3 is a circular ring. The second end 12 of the connecting sleeve 1 extends into the fixing member 3, and a bearing 5 is provided between the second end 12 and the fixing member 3. The fixing member 3 provides radial support for the connecting sleeve 1 through the bearing 5. Because the fixing member 3 is fixed to an external component such as the end cover of the reducer housing, the provision of the bearing 5 enables the connecting sleeve 1 to rotate relative to the fixing member 3.

[0054] For further reference, Figure 2 and Figure 4 , the connecting sleeve 1 is stepped, and the diameter of the second end 12 is smaller than the diameter of the other parts of the connecting sleeve 1. The inner wall of the fixing member 3 is provided with a step 32, and the end of the bearing 5 abuts against the step 32. The step 32 serves as an axial limit for the bearing 5, and in order to make the diameter of the fixing member 3 and the annular body 2 the same so as to make the protrusion 23 and the limiting portion 31 correspond in the radial direction, and there must be space between the fixing member 3 and the second end 12 to accommodate the bearing 5, the diameter of the second end 12 is smaller than the diameter of the other parts of the connecting sleeve 1. This makes the overall structure compact and occupies little space, and the outer diameter of the angle limiting component used for wire-controlled steering remains consistent along the axial direction, which facilitates the installation of the angle limiting component of the wire-controlled steering in the reducer housing or the pipe column.

[0055] The clamping portion 13 can be connected only to the outer circumferential surface 101 of the connecting sleeve 1. Considering the strength of the bearing force of the clamping portion 13 when it is limitedly matched with the protrusion 23 on the annular body 2, as shown in FIG. Figure 2As shown, in some embodiments, the first end 11 of the connecting sleeve 1 extends radially to form a receiving portion 14, and the receiving portion 14 is connected to the clamping portion 13 on the side surface 141 facing the second end 12. The receiving portion 14 supports and limits the annular body 2 in the axial direction.

[0056] Furthermore, the side surface 141 of the receiving portion 14 facing the second end 12 and the outer peripheral surface 101 of the connecting sleeve 1 are both connected to the clamping portion 13. Compared with the clamping portion 13 being only connected to the side surface 141 of the receiving portion 14 facing the second end 12, the side surface 141 of the receiving portion 14 facing the second end 12 and the outer peripheral surface 101 of the connecting sleeve 1 are both connected to the clamping portion 13, which improves the connection strength between the clamping portion 13 and the connecting sleeve 1, so that the clamping portion 13 has sufficient anti-deformation strength when squeezed by the protrusion 23.

[0057] The annular body 2 can be formed by forging. In some embodiments, a concave portion 24 is formed on the first end face 21 and corresponds axially to the convex portion 23 of the second end face 22, and a concave portion 24 is formed on the second end face 22 and corresponds axially to the convex portion 23 of the first end face 21, to facilitate stamping of the annular body 2. The forged annular body 2 is low-cost and easy to process.

[0058] In another embodiment of the present application, a steer-by-wire system is provided. The steer-by-wire system includes the above-mentioned turning angle limiting component applied to steer-by-wire.

[0059] In yet another embodiment of the present application, a vehicle is provided, comprising the above-mentioned steer-by-wire system.

[0060] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a..." do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0061] It should also be noted that although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions within the scope of the claims.

[0062] The above description is only a specific embodiment of the present application. Those skilled in the art will clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the scope of protection of the present application.

Claims

1. A turning angle limiting component for wire-controlled steering, characterized in that: include: A connecting sleeve, the connecting sleeve having a first end and a second end opposite to each other in the axial direction, the first end being provided with a clamping portion; At least one annular body, at least one of the annular bodies being sequentially sleeved on the periphery of the connecting sleeve along the axial direction, the annular body having a first end face and a second end face opposite to each other along the axial direction, the first end face and the second end face each having a convex portion formed by protruding along the axial direction, the convex portion of the first end face being used to form a limited fit with the convex portion on the second end face of the clamping portion or an adjacent annular body in the circumferential direction; The fixing member is provided at the second end of the connecting sleeve, and the fixing member has a limiting portion, and the limiting portion forms a limiting fit with the convex portion of the second end surface in the circumferential direction.

2. The turning angle limiting assembly for steer-by-wire according to claim 1, characterized in that: On the same annular body, the convex portion of the first end surface and the convex portion of the second end surface are spaced apart along the circumferential direction.

3. The turning angle limiting assembly for steer-by-wire according to claim 2, characterized in that: There are two clamping parts, which are arranged radially opposite to each other, and there are two convex parts on the first end surface, which are arranged on two radially opposite sides of the annular body; and / or There are two convex portions on the second end surface, and the two second end surfaces are arranged on two radially opposite sides of the annular body. There are two limiting portions, and the two limiting portions are arranged on two radially opposite sides of the annular body.

4. The turning angle limiting assembly for steer-by-wire according to claim 1, characterized in that: An intermediate sleeve is provided between the connecting sleeve and the at least one annular body in the radial direction.

5. The turning angle limiting assembly for steer-by-wire according to claim 1, characterized in that: The fixing member is a circular ring member, the second end of the connecting sleeve extends into the fixing member, and a bearing is provided between the second end and the fixing member.

6. The turning angle limiting assembly for steer-by-wire according to claim 5, characterized in that: The connecting sleeve is stepped, and the diameter of the second end is smaller than the diameter of other parts of the connecting sleeve; The inner wall of the fixing member is provided with a step, and the end portion of the bearing abuts against the step.

7. The turning angle limiting assembly for steer-by-wire according to claim 1, characterized in that: The first end of the connecting sleeve extends radially to form a receiving portion, and the side surface of the receiving portion facing the second end is connected to the clamping portion.

8. The turning angle limiting assembly for steer-by-wire according to claim 1, characterized in that: A concave portion corresponding to the convex portion of the second end surface in the axial direction is formed on the first end surface, and a concave portion corresponding to the convex portion of the first end surface in the axial direction is formed on the second end surface.

9. A steer-by-wire system, characterized in that: The steer-by-wire system includes a steering angle limiting component for steer-by-wire according to any one of claims 1 to 8.

10. A vehicle, characterized in that: The vehicle includes the steer-by-wire system of claim 9 .

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