Steering-by-wire column hand feeling simulation device for vehicle and vehicle

Abstract

The invention discloses a steer-by-wire column hand feeling simulation device for a vehicle and the vehicle, and relates to the technical field of auto spare parts, the steer-by-wire column hand feeling simulation device comprises a steering tube, a mandrel and an angle limiting mechanism, the steering tube sleeves the mandrel, the angle limiting mechanism comprises a plurality of limiting rings, and the limiting rings are arranged on the mandrel. The multiple limiting rings are sequentially assembled in a sleeved mode in the radial direction of the angle limiting mechanism, any two adjacent limiting rings can relatively rotate in the circumferential direction of the angle limiting mechanism, each limiting ring is provided with a limiting part, and the limiting parts of the multiple limiting rings are located on the same side of the angle limiting mechanism in the axial direction of the angle limiting mechanism. And at least parts of the limiting parts of any two adjacent limiting rings are positioned on the same circumference. According to the hand feeling simulation device for the steer-by-wire column, the maximum number of turns of rotation of the steering wheel can be limited, the universality is high, the safety of a vehicle can be improved, the occupied space of the hand feeling simulation device for the steer-by-wire column is small, and the space utilization rate of the vehicle can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, in particular to a wire-controlled steering column feel simulation device for a vehicle and a vehicle having the wire-controlled steering column feel simulation device. Background Art

[0002] In the related art, in vehicles using a wire-controlled steering column, there is a lack of a physical connection mechanism between the wire-controlled steering column and the steering gear, and the number of steering wheel turns cannot be limited by the steering gear rack travel. When the vehicle is powered off, the steering wheel can be turned arbitrarily, and the number of steering wheel turns is not limited, which exceeds the steering column angle signal range, making the vehicle unable to drive normally and affecting the safety of the vehicle. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a wire-controlled steering column feel simulation device for a vehicle, which can limit the number of turns of the steering wheel so that the vehicle can be driven normally, which is beneficial to improving the safety of the vehicle, and has high versatility. The wire-controlled steering column feel simulation device occupies little space, which is beneficial to improving the space utilization rate of the vehicle.

[0004] The present invention also provides a vehicle using the above-mentioned wire-controlled steering column hand feel simulation device.

[0005] According to an embodiment of the first aspect of the present invention, a device for simulating the feel of a steering column by wire for a vehicle comprises: a steering tube, a core shaft and an angle limiting mechanism, wherein the steering tube is used to be fixedly connected to the vehicle, the steering tube is sleeved on the core shaft, and the core shaft is rotatably arranged on the steering tube along the central axis of the core shaft, the angle limiting mechanism comprises a plurality of limiting rings, and the plurality of limiting rings are sequentially sleeved and assembled along the radial direction of the angle limiting mechanism, the limiting ring located in the innermost ring is fixedly connected to the core shaft, and the limiting ring located in the outermost ring is fixedly connected to the steering tube, any two adjacent limiting rings are relatively rotatable along the circumferential direction of the angle limiting mechanism, each limiting ring has a limiting portion, and along the axial direction of the angle limiting mechanism, the limiting portions of the plurality of limiting rings are located on the same side of the angle limiting mechanism, and at least parts of the limiting portions of any two adjacent limiting rings are located on the same circumference.

[0006] According to the wire-controlled steering column feel simulation device for vehicles of the present application, by setting an angle limit mechanism, the relative rotation number of the steering tube and the core shaft can be limited, and the maximum rotation number of the steering wheel can be limited, so that the vehicle can be driven normally, which is beneficial to improving the safety of the vehicle. And by adjusting the relative position of the limiting parts of any two adjacent limiting rings on the angle limit mechanism or adjusting the number of limiting rings, different steering wheel rotation requirements can be met, which is beneficial to improving the versatility of the wire-controlled steering column feel simulation device. In addition, by setting a plurality of limiting rings to be sequentially sleeved and assembled along the radial direction of the angle limit mechanism, the structure of the angle limit mechanism is compact, the axial size of the angle limit mechanism is small, and the axial size of the wire-controlled steering column feel simulation device is small, which can reduce the space occupied by the wire-controlled steering column feel simulation device, which is beneficial to improving the space utilization rate of the vehicle.

[0007] According to some embodiments of the present invention, each of the limit rings also has a circular limit ring body, the limit ring bodies of the plurality of limit rings are sequentially sleeved and assembled, the limit ring bodies and the corresponding limit parts are fixedly connected, and the limit parts of the limit rings located on the inner side of the outermost limit ring extend radially along the angle limit mechanism, so that at least part of the limit parts of any two adjacent limit rings are located on the same circumference.

[0008] According to some embodiments of the present invention, the limiting ring body and the limiting portion of at least one limiting ring are integrally formed.

[0009] According to some embodiments of the present invention, in any two adjacent limit rings, when the limit ring located on the inner side is rotated until the limit portion abuts against the limit portion of the limit ring located on the outer side, the limit portion of the inner limit ring and the limit portion of the outer limit ring abut against each other face to face.

[0010] According to some embodiments of the present invention, central axes of the plurality of limiting rings are parallel to each other.

[0011] According to some embodiments of the present invention, along the axial direction of the angle limiting mechanism, the limiting portions of at least two of the limiting rings have the same thickness dimension.

[0012] According to some embodiments of the present invention, the device for simulating the feel of a steering column by wire for a vehicle further includes: a bearing structure, wherein the bearing structure is provided between any two adjacent limit rings so that any two adjacent limit rings can rotate relative to each other along the circumferential direction of the angle limit mechanism.

[0013] According to some embodiments of the present invention, the bearing structure includes: a retaining frame and a plurality of balls, the retaining frame is annular and extends circumferentially around the corresponding limiting ring, the plurality of balls are arranged in sequence along the circumference of the retaining frame and are all penetrated by the retaining frame, the two limiting rings adjacent to the bearing structure are each formed with a guide groove opposite to the balls, the guide groove extends along the circumference of the corresponding limiting ring so that the guide groove is constructed in an annular shape, and the plurality of balls are all assembled in the corresponding guide groove.

[0014] According to some embodiments of the present invention, the retaining frame includes: a first sub-retainer and a second sub-retainer, the first sub-retainer and the second sub-retainer are opposite and fixedly connected along the axial direction of the angle limiting mechanism, the first sub-retainer and the second sub-retainer jointly define a plurality of mounting holes, the plurality of mounting holes are arranged in sequence along the circumference of the retaining frame, and each of the mounting holes is equipped with one of the ball bearings.

[0015] A vehicle according to an embodiment of the second aspect of the present invention comprises the device for simulating the feel of a steering-by-wire column for a vehicle as described in the above embodiment.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is a schematic diagram of a device for simulating the feel of a wire-controlled steering column according to an embodiment of the present application;

[0019] Figure 2 is a schematic diagram of an angle limiting mechanism according to an embodiment of the present application;

[0020] Figure 3 is an exploded schematic diagram of an angle limiting mechanism according to an embodiment of the present application;

[0021] Figure 4 It is a schematic diagram of a limit ring according to an embodiment of the present application.

[0022] Reference numerals:

[0023] Wire-controlled steering column feel simulation device 1,

[0024] Steering tube 10,

[0025] Mandrel 20,

[0026] Angle limiting mechanism 30, limiting ring 31, limiting ring body 311, limiting portion 312, guide groove 313,

[0027] Bearing structure 40, cage 41, first sub-cage 411, second sub-cage 412, ball 42, mounting hole 43,

[0028] Motor assembly 50. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] Reference below Figure 1-Figure 4 A steering-by-wire column feel simulation device 1 for a vehicle according to an embodiment of the present invention is described. The steering-by-wire column feel simulation device 1 can be installed on a vehicle.

[0031] According to the first aspect of the present invention, a device 1 for simulating the feel of a steering column by wire for a vehicle is provided. Figure 1-Figure 4 As shown, the wire-controlled steering column feel simulation device 1 for a vehicle may include: a steering tube 10, a core shaft 20 and an angle limiting mechanism 30, the steering tube 10 is used to be fixedly connected to the vehicle, the steering tube 10 is sleeved on the core shaft 20, and the core shaft 20 is rotatably arranged on the steering tube 10 along the central axis of the core shaft 20, the angle limiting mechanism 30 includes a plurality of limiting rings 31, and the plurality of limiting rings 31 are sequentially sleeved and assembled along the radial direction of the angle limiting mechanism 30, the limiting ring 31 located in the innermost ring is fixedly connected to the core shaft 20, and the limiting ring 31 located in the outermost ring is fixedly connected to the steering tube 10, any two adjacent limiting rings 31 can rotate relatively along the circumferential direction of the angle limiting mechanism 30, each limiting ring 31 has a limiting portion 312, along the axial direction of the angle limiting mechanism 30, the limiting portions 312 of the plurality of limiting rings 31 are located on the same side of the angle limiting mechanism 30, and at least parts of the limiting portions 312 of any two adjacent limiting rings 31 are located on the same circumference.

[0032] It should be noted that in the related art, in vehicles using a wire-controlled steering column, there is a lack of a physical connection mechanism between the wire-controlled steering column and the steering gear, and the number of steering wheel turns cannot be limited by the steering gear rack travel. When the vehicle is powered off, the steering wheel can be turned arbitrarily, and the number of steering wheel turns is not limited, which exceeds the steering column angle signal range, making the vehicle unable to drive normally and affecting the safety of the vehicle.

[0033] Based on this, the embodiment of the present application proposes a wire-controlled steering column feel simulation device 1 for a vehicle, wherein the steering tube 10 can be connected to the instrument panel cross beam of the vehicle, and the steering tube 10 can be connected to the instrument panel cross beam by bolts, so that the steering tube 10 can be fixedly connected to the vehicle. The mandrel 20 can be connected to the steering wheel, and the mandrel 20 can transmit the steering torque applied by the driver through the steering wheel to the steering gear. The steering tube 10 can be sleeved on the mandrel 20, and the mandrel 20 can rotate relative to the steering tube 10 along the central axis of the mandrel 20. As an example, a first bearing can be provided between the mandrel 20 and the steering tube 10, the mandrel 20 can be inserted into the inner ring of the first bearing, the mandrel 20 can be interference fit with the inner ring of the first bearing, the mandrel 20 is fixedly connected to the first bearing, the steering tube 10 can be sleeved on the outer ring of the first bearing, the steering tube 10 can be interference fit with the outer ring of the first bearing, the steering tube 10 is fixedly connected to the first bearing, and the inner ring and outer ring of the first bearing rotate relatively, thereby achieving the effect of the mandrel 20 rotating relative to the steering tube 10.

[0034] As an example, along the axial direction of the core shaft 20, the other end of the core shaft 20 away from the steering wheel can be connected to the motor assembly 50. The motor assembly 50 can simulate the influence of different road conditions on steering according to the vehicle's driving status and road condition information, and accurately simulate the corresponding steering resistance, so that the driver can feel the steering feel that matches the actual vehicle when driving the vehicle, thereby improving driving comfort.

[0035] The angle limiting mechanism 30 may include a plurality of limiting rings 31, which may be arranged in sequence along the radial direction of the angle limiting mechanism 30, and the plurality of limiting rings 31 may be sequentially sleeved and assembled. The limiting rings 31 may be two, three, four, etc., and different numbers of limiting rings 31 may be selected according to different requirements for the number of rotations of the steering wheel. The embodiment of the present application takes four limiting rings 31 as an example for explanation. As an example, along the radial direction of the angle limiting mechanism 30, the angle limiting mechanism 30 may include a limiting ring 31 located in the innermost circle, a limiting ring 31 located in the outermost circle, and two limiting rings 31 located between the limiting ring 31 in the innermost circle and the limiting ring 31 in the outermost circle. The two limiting rings 31 may be respectively recorded as a first limiting ring and a second limiting ring. The first limiting ring may be disposed adjacent to the limiting ring 31 located in the innermost circle, and the second limiting ring may be disposed adjacent to the limiting ring 31 located in the outermost circle. Along the radial direction of the angle limiting mechanism 30, the limiting ring 31 located at the innermost circle, the first limiting ring, the second limiting ring, and the limiting ring 31 located at the outermost circle are arranged in sequence, the first limiting ring is sleeved on the limiting ring 31 located at the innermost circle, the second limiting ring is sleeved on the first limiting ring, and the limiting ring 31 located at the outermost circle is sleeved on the second limiting ring, thereby achieving the effect of sequential sleeve assembly of multiple limiting rings 31. By arranging multiple limiting rings 31 to be sleeved and assembled in sequence along the radial direction of the angle limiting mechanism 30, the structure of the angle limiting mechanism 30 is made compact, the axial dimension of the angle limiting mechanism 30 can be equal to the axial dimension of the limiting ring 31, the axial dimension of the angle limiting mechanism 30 is small, the axial dimension of the wire-controlled steering column feel simulation device 1 is small, the space occupation of the wire-controlled steering column feel simulation device 1 can be reduced, and it is beneficial to improve the space utilization rate of the vehicle.

[0036] Along the radial direction of the angle limiting mechanism 30, the limiting ring 31 located at the innermost circle can be sleeved on the core shaft 20, the limiting ring 31 located at the innermost circle can be interference fit with the core shaft 20, and the limiting ring 31 located at the innermost circle is fixedly connected to the core shaft 20. The steering tube 10 can be sleeved on the limiting ring 31 located at the outermost circle, the limiting ring 31 located at the outermost circle can be interference fit with the steering tube 10, and the limiting ring 31 located at the outermost circle is fixedly connected to the steering tube 10. Any two adjacent limiting rings 31 can rotate relative to each other along the circumference of the angle limiting mechanism 30, that is, the first limiting ring can rotate relative to the limiting ring 31 located in the innermost ring along the circumference of the angle limiting mechanism 30, the first limiting ring can rotate relative to the second limiting ring along the circumference of the angle limiting mechanism 30, and the second limiting ring can rotate relative to the limiting ring 31 located in the outermost ring along the circumference of the angle limiting mechanism 30, so that the limiting ring 31 located in the innermost ring can rotate relative to the limiting ring 31 located in the outermost ring, and the core shaft 20 can rotate relative to the steering tube 10. Each limiting ring 31 has a limiting portion 312. When multiple limiting rings 31 are sequentially sleeved and assembled, the limiting portions 312 of multiple limiting rings 31 are located on the same side of the angle limiting mechanism 30 along the axial direction of the angle limiting mechanism 30.

[0037] Each limiting portion 312 can extend in the radial direction of the corresponding limiting ring 31, and each limiting portion 312 can protrude from the outer peripheral wall of the corresponding limiting ring 31 in the radial direction of the corresponding limiting ring 31. As an example, the limiting ring 31 can include a limiting ring body 311 and a limiting portion 312, the limiting ring body 311 and the corresponding limiting portion 312 are fixedly connected, the limiting ring body 311 can be constructed as an annular structure, and the limiting ring bodies 311 of multiple limiting rings 31 are sequentially sleeved and assembled. The limiting portion 312 can extend in the radial direction of the limiting ring 31, and the limiting portion 312 can extend from the inner side of the corresponding limiting ring body 311 to the outer side of the corresponding limiting ring body 311 and extend out of the outer peripheral wall of the corresponding limiting ring body 311. At least part of the limiting portion 312 of the limiting ring 31 located on the inner side of any two adjacent limiting rings 31 and at least part of the limiting portion 312 of the limiting ring 31 located on the outer side are located on the same circumference. At least part of the limiting portions 312 of any two adjacent limiting rings 31 are located on the same circumference. When the limiting ring 31 located on the inner side of any two adjacent limiting rings 31 rotates relative to the limiting ring 31 located on the outer side, the limiting portions 312 of the two limiting rings 31 can abut against each other, thereby preventing the two adjacent limiting rings 31 from rotating relative to each other. When the limiting portions 312 of the two adjacent limiting rings 31 abut against each other, the limiting ring 31 located on the inner side can drive the limiting ring 31 located on the outer side to rotate, and the two limiting rings 31 can rotate synchronously.

[0038] When the core shaft 20 rotates relative to the steering tube 10, the core shaft 20 rotates and drives the innermost limiting ring 31 in the angle limiting mechanism 30 to rotate. When the limiting portion 312 of the limiting ring 31 located in the innermost ring abuts against the limiting portion 312 of the limiting ring 31 located outside and adjacent to it, the two limiting rings 31 cannot rotate relative to each other. The limiting ring 31 located in the innermost ring can drive the limiting rings 31 located outside and adjacent to it to rotate synchronously. When multiple limiting rings 31 located inside the outermost limiting ring 31 rotate synchronously, and the outermost of the multiple limiting rings 31 located inside the outermost limiting ring 31 When the limiting portion 312 of the limiting ring 31 abuts against the limiting ring 31 located at the outermost circle of the angle limiting mechanism 30, the multiple limiting rings 31 in the angle limiting mechanism 30 no longer rotate, and the angle limiting mechanism 30 is in the extreme rotation position, which can achieve the effect of limiting the number of rotations of the angle limiting mechanism 30, and further achieve the effect of limiting the number of relative rotations of the steering tube 10 and the core shaft 20, which is beneficial to limiting the maximum number of rotations of the steering wheel, and by adjusting the relative positions of the limiting portions 312 of any two adjacent limiting rings 31 on the angle limiting mechanism 30, different maximum numbers of rotations of the steering wheel can be achieved.

[0039] It should be noted that, along the radial direction of the angle limiting mechanism 30 , the side close to the center of the angle limiting mechanism 30 is the inner side, and the side away from the center of the angle limiting mechanism 30 is the outer side.

[0040] In the embodiment of the present application, by setting the angle limit mechanism 30, the relative rotation number of the steering tube 10 and the core shaft 20 can be limited, and the maximum rotation number of the steering wheel can be limited, so that the vehicle can be driven normally, which is beneficial to improving the safety of the vehicle. And by adjusting the relative position of the limiting portion 312 of any two adjacent limiting rings 31 on the angle limit mechanism 30 or adjusting the number of limiting rings 31, different steering wheel rotation requirements can be met, which is beneficial to improving the versatility of the wire-controlled steering column feel simulation device 1. In addition, by setting a plurality of limiting rings 31 and sequentially assembling them along the radial direction of the angle limit mechanism 30, the structure of the angle limit mechanism 30 is compact, the axial size of the angle limit mechanism 30 is small, and the axial size of the wire-controlled steering column feel simulation device 1 is small, which can reduce the space occupied by the wire-controlled steering column feel simulation device 1, which is beneficial to improving the space utilization rate of the vehicle.

[0041] In some embodiments of the present invention, each limiting ring 31 also has a circular limiting ring body 311, and the limiting ring bodies 311 of multiple limiting rings 31 are sequentially arranged and assembled, and the limiting ring bodies 311 and the corresponding limiting portions 312 are fixedly connected, and the limiting portions 312 of the limiting ring 31 located on the inner side of the outermost limiting ring 31 extend along the radial direction of the angle limiting mechanism 30, so that at least part of the limiting portions 312 of any two adjacent limiting rings 31 are located on the same circumference.

[0042] Each limiting ring 31 also has a limiting ring body 311. When the angle limiting mechanism 30 is arranged in the up-down direction, that is, the axial direction of the angle limiting mechanism 30 is the height direction of the angle limiting mechanism 30, the cross-sectional shape of the limiting ring body 311 can be circular, and the limiting ring body 311 can be constructed as an annular structure. The limiting ring bodies 311 of multiple limiting rings 31 can be arranged in sequence along the radial direction of the angle limiting mechanism 30, and the multiple limiting ring bodies 311 can be sequentially sleeved and assembled. The limiting ring body 311 can be fixedly connected to the corresponding limiting portion 312, the limiting ring body 311 can be welded to the corresponding limiting portion 312, and the limiting ring body 311 can be integrally formed with the corresponding limiting portion 312.

[0043] The limiting portions 312 of the multiple limiting rings 31 located on the inner side of the outermost limiting ring 31 can all extend along the radial direction of the angle limiting mechanism 30, and the limiting portions 312 of the multiple limiting rings 31 located on the inner side of the outermost limiting ring 31 can all extend toward the outer side of the angle limiting mechanism 30. At least parts of the limiting portions 312 of any two adjacent limiting rings 31 can be located on the same circumference. When the limiting ring 31 located on the inner side of any two adjacent limiting rings 31 rotates, the limiting portion 312 of the limiting ring 31 located on the inner side can abut against the limiting portion 312 of the limiting ring 31 located on the outer side and adjacent to it. Furthermore, if the limiting ring 31 located on the inner side of any two adjacent limiting rings 31 continues to rotate, the two limiting rings 31 can rotate synchronously. The limiting portion 312 of any limiting ring 31 located inside the outermost limiting ring 31 can abut against the limiting portion 312 of the limiting ring 31 located outside and adjacent to it, so as to achieve the effect of limiting the relative rotation number of any two adjacent limiting rings 31. When the multiple limiting rings 31 located inside the outermost limiting ring 31 rotate synchronously, and the limiting portion 312 of the outermost limiting ring 31 among the multiple limiting rings 31 located inside the outermost limiting ring 31 abuts against the outermost limiting ring 31 located at the angle limiting mechanism 30, the multiple limiting rings 31 in the angle limiting mechanism 30 no longer rotate, and the angle limiting mechanism 30 is in the rotation limit position, which can achieve the effect of limiting the rotation number of the angle limiting mechanism 30, and further achieve the effect of limiting the relative rotation number of the steering tube 10 and the core shaft 20, which is conducive to limiting the maximum rotation number of the steering wheel.

[0044] As an example, the length dimension of the limiting portion 312 located at the outermost circle limiting ring 31 along the radial direction of the limiting ring 31 can be the same as the thickness dimension of the limiting ring body 311 located at the outermost circle limiting ring 31 along the radial direction of the limiting ring 31. The limiting portion 312 located at the outermost circle limiting ring 31 does not protrude from the outer peripheral wall of the corresponding limiting ring body 311 along the radial direction of the limiting ring 31, so that the limiting ring 31 located at the outermost circle can abut against the inner wall of the steering tube 10, so that the steering tube 10 and the angle limiting mechanism 30 can be fixedly connected.

[0045] In some embodiments of the present invention, the limiting ring body 311 and the limiting portion 312 of at least one limiting ring 31 are integrally formed.

[0046] The limiting ring body 311 can be integrally formed with the corresponding limiting portion 312. The limiting ring body 311 of at least one limiting ring 31 can be integrally formed with the limiting portion 312. This application is described by taking the limiting ring bodies 311 and limiting portions 312 of multiple limiting rings 31 as an example. By setting the limiting ring body 311 and the corresponding limiting portion 312 to be integrally formed, it is beneficial to improve the connection strength of the limiting ring body 311 and the corresponding limiting portion 312, and it is beneficial to improve the integrity of the limiting ring 31, and reduce the probability of the limiting ring 31 being damaged due to the separation of the limiting ring body 311 and the corresponding limiting portion 312 when the limiting ring 31 located on the inner side of the two adjacent limiting rings 31 rotates to make the limiting portion 312 abut against the limiting portion 312 located on the outer side.

[0047] In some embodiments of the present invention, among any two adjacent limit rings 31, when the inner limit ring 31 is rotated so that its corresponding limit portion 312 abuts against the limit portion 312 of the outer limit ring 31, the limit portion 312 of the inner limit ring 31 and the limit portion 312 of the outer limit ring 31 abut against each other face to face.

[0048] Of any two adjacent limiting rings 31 , the limiting ring 31 located on the inner side can rotate relative to the limiting ring 31 located on the outer side, the limiting ring 31 located on the inner side can rotate in a clockwise direction, or the limiting ring 31 located on the inner side can rotate in a counterclockwise direction. When the inner limit ring 31 rotates to make its corresponding limit part 312 abut against the outer limit part 312, the side surface of the limit part 312 of the inner limit ring 31 along the circumferential direction of the limit ring 31 can abut against the side surface of the limit part 312 of the outer limit ring 31 along the circumferential direction of the limit ring 31. The limit part 312 of the inner limit ring 31 and the limit part 312 of the outer limit ring 31 abut against each other surface to increase the contact area between the limit part 312 of the inner limit ring 31 and the limit part 312 of the outer limit ring 31, thereby reducing the risk of stress concentration in the two limit parts 312 when the two limit parts 312 abut against each other, which is beneficial to reducing the force of the limit part 312 of the inner limit ring 31 acting on the limit part 312 of the outer limit ring 31, so that the inner limit ring 31 of any two adjacent limit rings 31 drives the outer limit ring 31 to rotate.

[0049] In some embodiments of the present invention, central axes of the plurality of limiting rings 31 are parallel to each other.

[0050] Each limiting ring 31 can rotate along the central axis of the corresponding limiting ring 31, and the central axes of the plurality of limiting rings 31 are parallel to each other. The central axes of the plurality of limiting rings 31 that are parallel to each other can improve the overall rotation stability of the angle limiting mechanism 30 and reduce the stress concentration or poor movement caused by the deviation of the central axis. The plurality of limiting rings 31 can be sequentially sleeved and assembled along the radial direction of the angle limiting mechanism 30, and the central axes of the plurality of limiting rings 31 can be collinear, and the central axes of the plurality of limiting rings 31 can be collinear with the central axis of the mandrel 20, which can improve the stability of the angle limiting mechanism 30 when rotating.

[0051] In some embodiments of the present invention, along the axial direction of the angle limiting mechanism 30 , the limiting portions 312 of at least two limiting rings 31 have the same thickness.

[0052] Each limiting ring 31 has a limiting portion 312. Along the axial direction of the angle limiting mechanism 30, the limiting portions 312 of the multiple limiting rings 31 are all located on the same side of the angle limiting mechanism 30, and the limiting portions 312 of at least two limiting rings 31 have the same thickness. When the limiting portions 312 of the multiple limiting rings 31 abut against each other and the angle limiting mechanism 30 is in the rotation limit position, the limiting portions 312 of the multiple limiting rings 31 jointly bear the force from the rotating parts (for example: the core shaft 20, the steering tube 10), and the limiting portions 312 with the same thickness can more evenly disperse the load, so that the multiple limiting portions 312 are evenly stressed, reducing the risk of premature damage or failure caused by a certain limiting ring 31 bearing an excessive load due to a too small thickness, which is conducive to extending the service life of the angle limiting mechanism 30. The embodiment of the present application is described by taking the case that the thickness of the limiting parts 312 of the multiple limiting rings 31 along the axial direction of the angle limiting mechanism 30 is the same as an example. By setting the thickness of the limiting parts 312 of the multiple limiting rings 31 to be the same, the same mold can be used to manufacture the limiting parts 312 with the same thickness, which is conducive to reducing costs. As an example, in the stamping or injection molding process, the same set of molds is used to produce the limiting parts 312 of the multiple limiting rings 31, which reduces the design and manufacturing quantity of the molds, and reduces the production cost and production cycle.

[0053] In some embodiments of the present invention, the device 1 for simulating the feel of a steering column by wire for a vehicle further includes: a bearing structure 40 , wherein a bearing structure 40 is provided between any two adjacent limit rings 31 , so that any two adjacent limit rings 31 can rotate relative to each other along the circumferential direction of the angle limit mechanism 30 .

[0054] Along the radial direction of the angle limiting mechanism 30, a bearing structure 40 is provided between any two adjacent limiting rings 31. The bearing structure 40 can be a rolling bearing, a sliding bearing, etc. The limiting ring 31 located on the inner side of any two adjacent limiting rings 31 can be connected to the inner ring of the bearing structure 40, and the limiting ring 31 located on the outer side of any two adjacent limiting rings 31 can be connected to the outer ring of the bearing structure 40. The inner ring and the outer ring of the bearing structure 40 rotate relative to each other, so that any two adjacent limiting rings 31 can rotate relative to each other along the circumferential direction of the angle limiting mechanism 30, so that the steering tube 10 and the core shaft 20 can rotate relative to each other, so that the wire-controlled steering column feel simulation device 1 can work normally.

[0055] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the bearing structure 40 may include: a retaining frame 41 and a plurality of balls 42, the retaining frame 41 is annular and extends circumferentially around the corresponding limiting ring 31, the plurality of balls 42 are arranged in sequence along the circumference of the retaining frame 41 and are all penetrated by the retaining frame 41, the two limiting rings 31 adjacent to the bearing structure 40 are both formed with guide grooves 313 opposite to the balls 42, the guide grooves 313 extend along the circumference of the corresponding limiting rings 31 so that the guide grooves 313 are constructed into an annular shape, and the plurality of balls 42 are all assembled in the corresponding guide grooves 313.

[0056] The embodiment of the present application is described by taking the bearing structure 40 as a rolling bearing as an example. The bearing structure 40 may include a retainer 41 and a plurality of balls 42. The retainer 41 may extend around the circumference of the corresponding limiting ring 31. The retainer 41 may be constructed in a ring shape. The retainer 41 may be sleeved on the corresponding limiting ring 31. The plurality of balls 42 may be arranged in sequence along the circumference of the retainer 41. The plurality of balls 42 may be inserted into the retainer 41 along the radial direction of the limiting ring 31. The plurality of balls 42 are assembled on the retainer 41. The retainer 41 may keep the interval between any two adjacent balls 42 constant. The plurality of balls 42 may roll on the retainer 41. The retainer 41 may drive the plurality of balls 42 to move along the circumference of the corresponding limiting ring 31, so that the two limiting rings 31 adjacent to the bearing structure 40 may rotate relative to each other. The retainer 41 may reduce the risk of the plurality of balls 42 falling off from the angle limiting mechanism 30, which is conducive to improving the reliability of the angle limiting mechanism 30 and extending the service life of the angle limiting mechanism 30. As an example, a plurality of first assembly holes may be provided on the retaining frame 41 , and the plurality of first assembly holes may be provided in one-to-one correspondence with the plurality of balls 42 , and the balls 42 are passed through the corresponding first assembly holes, so that the balls 42 are passed through the corresponding retaining frame 41 .

[0057] As an example, the plurality of balls 42 may be evenly arranged along the circumference of the bearing structure 40, and along the radial direction of the angle limiting mechanism 30, from the inner side of the angle limiting mechanism 30 to the outer side of the angle limiting mechanism 30, the radial dimensions of the plurality of limiting rings 31 arranged in sequence gradually increase, and the radial dimensions of the corresponding bearing structure 40 also gradually increase. The angle limiting mechanism 30 may include at least one retaining frame 41, and when there are multiple retaining frames 41, the number of balls 42 on each retaining frame 41 may be the same, or the number of balls 42 on each retaining frame 41 may be different.

[0058] The two limiting rings 31 adjacent to the bearing structure 40 are both formed with guide grooves 313, which can be arranged opposite to the balls 42 along the radial direction of the corresponding limiting rings 31, and can extend along the circumferential direction of the corresponding limiting rings 31, and can be constructed in an annular shape. The cross-sectional shape of the guide groove 313 can be constructed in an arc shape, and the outer peripheral wall of the balls 42 can abut against the inner wall of the corresponding guide groove 313, and multiple balls 42 can be assembled in the corresponding guide grooves 313, so as to achieve the effect of relative rotation of the two limiting rings 31 adjacent to the bearing structure 40. By setting the retainer 41 and the multiple balls 42, the reliability of the relative rotation of the two limiting rings 31 adjacent to the bearing structure 40 can be improved.

[0059] In some embodiments of the present invention, the retaining frame 41 may include: a first sub-retaining frame 411 and a second sub-retaining frame 412, the first sub-retaining frame 411 and the second sub-retaining frame 412 are opposite and fixedly connected along the axial direction of the angle limiting mechanism 30, the first sub-retaining frame 411 and the second sub-retaining frame 412 jointly define a plurality of mounting holes 43, the plurality of mounting holes 43 are arranged in sequence along the circumference of the retaining frame 41, and each mounting hole 43 is equipped with a ball 42.

[0060] The first sub-cage 411 and the second sub-cage 412 can be arranged opposite to each other along the axial direction of the angle limiting mechanism 30. The first sub-cage 411 and the second sub-cage 412 can be fixedly connected by welding, clamping, etc. The first sub-cage 411 and the second sub-cage 412 can jointly define a plurality of mounting holes 43 (i.e., the first assembly holes in the above embodiment). The plurality of mounting holes 43 can be arranged in sequence along the circumference of the cage 41. The plurality of mounting holes 43 can be arranged in a one-to-one correspondence with the plurality of balls 42. Each mounting hole 43 can be equipped with a ball 42. The ball 42 is inserted into the corresponding mounting hole 43, thereby achieving the effect of assembling a plurality of balls 42 between two adjacent limiting rings 31, so that the two adjacent limiting rings 31 can rotate relatively smoothly, which is conducive to improving the reliability of the angle limiting mechanism 30.

[0061] The vehicle according to the second aspect of the present invention comprises the device 1 for simulating the feel of a steering-by-wire column for a vehicle in the above-mentioned embodiment.

[0062] According to the vehicle of the embodiment of the present application, using the wire-controlled steering column feel simulation device 1 for the vehicle in the above embodiment, the number of turns of the steering wheel can be limited, the safety of the vehicle can be improved, and different steering wheel turn requirements can be met.

[0063] Other structures and operations of the wire-controlled steering column feel simulation device 1 and the vehicle according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail herein.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

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

Claims

1. A device for simulating the feel of a steering-by-wire column for a vehicle, characterized in that: include: A steering tube (10), the steering tube (10) being used for being fixedly connected to the vehicle; A core shaft (20), the steering tube (10) is sleeved on the core shaft (20), and the core shaft (20) is rotatably arranged on the steering tube (10) along the central axis of the core shaft (20); An angle limiting mechanism (30), the angle limiting mechanism (30) comprising a plurality of limiting rings (31), the plurality of limiting rings (31) being sequentially sleeved and assembled along the radial direction of the angle limiting mechanism (30), the limiting ring (31) located in the innermost ring being fixedly connected to the core shaft (20), the limiting ring (31) located in the outermost ring being fixedly connected to the steering tube (10), any two adjacent limiting rings (31) being relatively rotatable along the circumferential direction of the angle limiting mechanism (30), each limiting ring (31) having a limiting portion (312), and along the axial direction of the angle limiting mechanism (30), the limiting portions (312) of the plurality of limiting rings (31) being located on the same side of the angle limiting mechanism (30), and at least parts of the limiting portions (312) of any two adjacent limiting rings (31) being located on the same circumference.

2. The device for simulating the feel of a steering-by-wire column for a vehicle according to claim 1, characterized in that: Each of the limiting rings (31) also has a circular limiting ring body (311), and the limiting ring bodies (311) of the plurality of limiting rings (31) are sequentially sleeved and assembled, the limiting ring bodies (311) and the corresponding limiting portions (312) are fixedly connected, and the limiting portions (312) of the limiting rings (31) located on the inner side of the outermost limiting ring (31) extend radially along the angle limiting mechanism (30), so that at least parts of the limiting portions (312) of any two adjacent limiting rings (31) are located on the same circumference.

3. The device for simulating the feel of a steering-by-wire column for a vehicle according to claim 2, characterized in that: The limiting ring body (311) and the limiting portion (312) of at least one limiting ring (31) are integrally formed.

4. The device for simulating the feel of a steering-by-wire column for a vehicle according to claim 1, characterized in that: In any two adjacent limiting rings (31), when the limiting ring (31) located on the inner side is rotated until the limiting portion (312) abuts against the limiting portion (312) located on the outer side limiting ring (31), the limiting portion (312) located on the inner side limiting ring (31) and the limiting portion (312) located on the outer side limiting ring (31) abut against each other face to face.

5. The device for simulating the feel of a steering-by-wire column for a vehicle according to claim 1, characterized in that: The central axes of the plurality of limiting rings (31) are parallel to each other.

6. The device for simulating the feel of a steering-by-wire column for a vehicle according to claim 1, characterized in that: Along the axial direction of the angle limiting mechanism (30), the limiting portions (312) of at least two limiting rings (31) have the same thickness dimension.

7. The device for simulating the feel of a steering-by-wire column for a vehicle according to any one of claims 1 to 6, characterized in that: Also includes: A bearing structure (40) is provided between any two adjacent limiting rings (31), so that any two adjacent limiting rings (31) can rotate relatively along the circumferential direction of the angle limiting mechanism (30).

8. The device for simulating the feel of a steering-by-wire column for a vehicle according to claim 7, characterized in that: The bearing structure (40) comprises: a retaining frame (41) and a plurality of balls (42); the retaining frame (41) is annular and extends around the circumference of the corresponding limiting ring (31); the plurality of balls (42) are arranged in sequence along the circumference of the retaining frame (41) and are all penetrated by the retaining frame (41); the two limiting rings (31) adjacent to the bearing structure (40) are each formed with a guide groove (313) opposite to the balls (42); the guide groove (313) extends along the circumference of the corresponding limiting ring (31) so that the guide groove (313) is constructed in an annular shape; the plurality of balls (42) are each assembled in the corresponding guide groove (313).

9. The device for simulating the feel of a steering-by-wire column for a vehicle according to claim 8, characterized in that: The retaining frame (41) comprises: a first sub-retaining frame (411) and a second sub-retaining frame (412); the first sub-retaining frame (411) and the second sub-retaining frame (412) are opposite to each other and fixedly connected along the axial direction of the angle limiting mechanism (30); the first sub-retaining frame (411) and the second sub-retaining frame (412) jointly define a plurality of mounting holes (43); the plurality of mounting holes (43) are sequentially arranged along the circumference of the retaining frame (41); and each mounting hole (43) is equipped with a ball (42).

10. A vehicle, characterized in that: It comprises a steering-by-wire column feel simulation device (1) for a vehicle according to any one of claims 1 to 9.

Images