Steer-by-wire column, steer-by-wire system and vehicle

Abstract

The present disclosure relates to a steer-by-wire column, a steer-by-wire system and a vehicle, the steer-by-wire column comprising a steering column and a feel simulator, the steering column comprising a column housing and a column rotating shaft, the column rotating shaft being rotatably arranged in the column housing; the feel simulator comprising a simulator housing and a simulator rotating shaft, the simulator output shaft being rotatably arranged in the simulator housing; wherein the simulator housing is detachably connected with the column housing, and the simulator output shaft is detachably connected with the column rotating shaft. The steer-by-wire column has the advantages of low cost.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of vehicles, in particular to a steer-by-wire column, a steer-by-wire system and a vehicle. BACKGROUND

[0002] The steer-by-wire system is composed of a steer-by-wire column, a steer-by-wire machine and auxiliary systems such as a wire harness and a power supply. Compared with the traditional automobile steering system, the steer-by-wire system of the automobile cancels the mechanical connection between the steering wheel and the steering wheel, and realizes steering completely by electric energy control, breaks away from various limitations of the traditional automobile steering system, and brings more space for the design of the automobile steering characteristics, which is a major innovation of the automobile steering system.

[0003] At present, the steer-by-wire column includes a steering column and a feel simulator, and the steering column and the feel simulator are of an integrated structure, so that the whole composed of the steering column and the feel simulator cannot be disassembled, the design, manufacturing and after-sales maintenance flexibility of the steer-by-wire column is poor, and the overall cost of the steer-by-wire column is high. SUMMARY

[0004] The present disclosure aims to at least solve one of the technical problems in the related art to some extent.

[0005] To this end, an embodiment of the present disclosure provides a steer-by-wire column to reduce the cost of the steer-by-wire column.

[0006] The steer-by-wire column of the embodiment of the present disclosure includes a steering column and a feel simulator, the steering column includes a column shell and a column rotating shaft, the column rotating shaft is rotatably arranged in the column shell, the feel simulator includes a simulator shell and a simulator rotating shaft, the simulator output shaft is rotatably arranged in the simulator shell, and the simulator shell and the column shell are detachably connected, and the simulator output shaft and the column rotating shaft are detachably connected.

[0007] In some embodiments, the steer-by-wire column further includes a transition shell, the simulator shell and the column shell are detachably connected to the transition shell, so that the simulator shell and the column shell are detachably connected.

[0008] In some embodiments, one of the simulator shell and the column shell is provided with a first connecting flange, the transition shell is provided with a second connecting flange, the second connecting flange is detachably connected with the first connecting flange, the other of the simulator shell and the column shell is provided with a third connecting flange, the transition shell is provided with a fourth connecting flange, and the fourth connecting flange is detachably connected with the third connecting flange.

[0009] In some embodiments, the first connecting flange is provided with a plurality of first connecting holes, the second connecting flange is provided with a plurality of second connecting holes, the plurality of second connecting holes correspond to the plurality of first connecting holes one by one, so that a first fastener passes through the corresponding second connecting hole and first connecting hole; the third connecting flange is provided with a plurality of third connecting holes, the fourth connecting flange is provided with a plurality of fourth connecting holes, the plurality of fourth connecting holes correspond to the plurality of third connecting holes one by one, so that a second fastener passes through the corresponding fourth connecting hole and third connecting hole.

[0010] In some embodiments, the first connecting flange comprises a plurality of first connecting lugs, each of the first connecting lugs is provided with at least one first connecting hole; and / or the third connecting flange comprises a plurality of third connecting lugs, each of the third connecting lugs is provided with at least one third connecting hole; and / or the transition housing is cylindrical, the second connecting flange and the fourth connecting flange are arranged along the length direction of the transition housing.

[0011] In some embodiments, the second connecting flange comprises a plurality of second connecting lugs, each of the second connecting lugs is provided with at least one second connecting hole; the fourth connecting flange comprises a plurality of fourth connecting lugs, each of the fourth connecting lugs is provided with at least one fourth connecting hole.

[0012] In some embodiments, the second connecting lugs and the fourth connecting lugs are arranged in a staggered manner along the circumferential direction of the transition housing.

[0013] In some embodiments, the transition housing has a rotation shaft hole, one of the pipe column rotation shaft and the simulator output shaft passes through the rotation shaft hole, and is detachably connected with the other one of the pipe column rotation shaft and the simulator output shaft.

[0014] In some embodiments, one of the simulator output shaft and the pipe column rotation shaft is provided with a socket, the other one of the simulator output shaft and the pipe column rotation shaft is provided with a shaft, the shaft is inserted into the socket, and the outer circumferential surface of the shaft is in abutment with the hole wall of the socket.

[0015] In some embodiments, the outer circumferential surface of the shaft is in rotation-stopping abutment with the hole wall of the socket.

[0016] In some embodiments, the shaft is prismatic, and the outer contour of the socket is prismatic, so that the outer surface of the shaft is rotationally stopped by the wall of the socket; and / or the outer surface of the shaft is formed with an outer groove, and the wall of the socket is formed with an inner protrusion, which is arranged in the outer groove, so that the outer surface of the shaft is rotationally stopped by the wall of the socket; and / or the outer surface of the shaft is formed with an outer protrusion, and the wall of the socket is formed with an inner groove, which is arranged in the outer protrusion, so that the outer surface of the shaft is rotationally stopped by the wall of the socket.

[0017] In some embodiments, the output shaft of the simulator is detachably connected to the column shaft through a connecting member; and / or the output shaft of the simulator is coaxially arranged with the column shaft, and the center line of the socket is coincident with the axis of the column shaft; and / or a shaft damping member is arranged between the outer surface of the shaft and the wall of the socket.

[0018] In some embodiments, a limiting device is arranged between the simulator housing and the output shaft of the simulator, and the limiting device comprises a first stop member, a second stop member and a first limiting member, the first stop member is arranged on the simulator housing, the second stop member is arranged on the output shaft of the simulator, and the first limiting member is rotatable relative to the output shaft of the simulator about the rotation axis, the first limiting member comprises a first rotating disc, a first protrusion and a second protrusion, and the first protrusion and the second protrusion are arranged on the axial two sides of the first rotating disc; when the output shaft of the simulator rotates by a first preset angle, the second stop member is abutted against the first protrusion, so that the output shaft of the simulator pushes the first limiting member to rotate synchronously; when the output shaft of the simulator rotates by a second preset angle, the second protrusion is directly or indirectly abutted against the first stop member, so that the output shaft of the simulator and the first limiting member stop rotating.

[0019] In some embodiments, the first limiting member further comprises a limiting rod, the limiting rod has a first limiting section and a second limiting section, the limiting rod is inserted and assembled on the first rotating disc, and the first limiting section and the second limiting section are arranged on the axial two sides of the first rotating disc, respectively, the first limiting section forms the first protrusion, and the second limiting section forms the second protrusion.

[0020] In some embodiments, the first limiting member further comprises a first damping sleeve and a second damping sleeve, the first damping sleeve is sleeved on the first limiting section, and the second damping sleeve is sleeved on the second limiting section.

[0021] In some embodiments, the steer-by-wire column comprises a first mounting bracket, the first mounting bracket being connected with the column housing, the first mounting bracket having a first mounting portion for being connected with a vehicle body or an instrument panel beam; the second mounting bracket having a first connecting portion and a second connecting portion, the second mounting bracket having a second mounting portion for being rotatably connected with the vehicle body or the instrument panel beam; wherein the first connecting portion is detachably connected with the column housing, and / or the second connecting portion is detachably connected with the simulator housing.

[0022] In some embodiments, the second mounting bracket comprises a first mounting ear, the first mounting ear being provided with a first mounting hole; the simulator housing comprises a second mounting ear, the second mounting ear being provided with a second mounting hole; wherein the second mounting hole is aligned with the first mounting hole for a connecting tube to pass through, the first mounting ear forms the second connecting portion, and the connecting tube forms the second mounting portion.

[0023] In some embodiments, the steer-by-wire column further comprises an angle adjustment unit connected with the steering column to adjust an inclination angle of the steering column; and / or the steer-by-wire column further comprises a length adjustment unit connected with the steering column to adjust a length of the steering column, the length adjustment range of the steering column being 150mm-300mm.

[0024] Embodiments of the present disclosure further provide a steer-by-wire system having the above steer-by-wire column.

[0025] The steer-by-wire system of the embodiments of the present disclosure comprises the steer-by-wire column and a steer-by-wire machine, the steer-by-wire column being any of the above embodiments, and the steer-by-wire machine being connected with the steer-by-wire column to receive signals of the steer-by-wire column.

[0026] Embodiments of the present disclosure further provide a vehicle comprising the above steer-by-wire system.

[0027] The steer-by-wire column of the embodiments of the present disclosure has the simulator housing detachably connected with the column housing and the simulator output shaft detachably connected with the column rotating shaft, so that the steering column and the feel simulator can be respectively manufactured, and can be respectively disassembled and replaced. Compared with the integrated structure of the steering column and the feel simulator in the related art, the design, manufacturing and after-sales maintenance flexibility of the steer-by-wire column can be effectively improved, so that the cost of the steer-by-wire column can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 FIG. 1 is a perspective view of a steer-by-wire column according to an embodiment of the present disclosure.

[0029] Figure 2 is a front view of a steer-by-wire column of one embodiment of the present disclosure.

[0030] Figure 3 is a view in the direction of A-A of Figure 2

[0031] Figure 4 is an exploded structural schematic view of the column housing, transition housing, and simulator housing in Figure 1

[0032] Figure 5 is a structural schematic view of the transition housing in Figure 4

[0033] Figure 6 is a structural schematic view of the transition housing and hand feel simulator connection in Figure 1

[0034] Figure 7 is a structural schematic view of the steering column and transition housing connection in Figure 1

[0035] Figure 8 is a front view of Figure 7

[0036] Figure 9 is a view in the direction of B-B of Figure 8

[0037] Figure 10 is a view in the direction of C-C of Figure 8

[0038] Figure 11 is a view in the direction of D-D of Figure 8

[0039] Figure 12 is a structural schematic view of the column rotation shaft and simulator output shaft connection in Figure 3

[0040] Figure 13 is an exploded structural schematic view of Figure 12

[0041] Figure 14 is a front view of Figure 12

[0042] Figure 15 is a view in the direction of E-E of Figure 14

[0043] Figure 16 is a structural schematic view of the column rotation shaft and simulator output shaft connection in a steer-by-wire column of another embodiment of the present disclosure.

[0044] ​​​​​​​​​​​​​Figure 17 This is a schematic diagram of the connection between the steering column shaft and the simulator output shaft of another embodiment of the present disclosure.

[0045] Figure 18 This is a schematic diagram of the connection between the steering column shaft and the simulator output shaft of a steering column according to another embodiment of the present disclosure.

[0046] Figure 19 This is a schematic diagram of the connection between the steering column shaft and the simulator output shaft of a steering column according to another embodiment of the present disclosure.

[0047] Figure 20 yes Figure 19 A partial structural diagram of the output axis of the simulator.

[0048] Figure 21 This is a schematic diagram of the connection between the steering column shaft and the simulator output shaft of a steering column according to another embodiment of the present disclosure.

[0049] Figure 22 yes Figure 21 FF view.

[0050] Figure 23 yes Figure 21 A partial structural diagram of the output axis of the simulator.

[0051] Figure 24 yes Figure 1 A schematic diagram of the structure of a haptic simulator.

[0052] Figure 25 yes Figure 1 A structural diagram of a haptic simulator from another perspective.

[0053] Figure 26 yes Figure 25 The GG view.

[0054] Figure 27 yes Figure 24 An exploded view of the dust cover and simulator housing.

[0055] Figure 28 yes Figure 27 A magnified view of section H in the middle.

[0056] Figure 29 yes Figure 24 A schematic diagram of its decomposed structure.

[0057] Figure 30 yes Figure 29 Enlarged view of point J in the middle.

[0058] Figure 31 yes Figure 30 A structural diagram from another perspective.

[0059] Figure 32 is Figure 1 Structure schematic view at the medium angle adjustment unit.

[0060] Figure 33 is Figure 1 Structure schematic view at the medium length adjustment unit.

[0061] Figure 34 Use state diagram of the steer-by-wire system according to an embodiment of the present disclosure.

[0062] Reference signs:

[0063] Steer-by-wire column 100;

[0064] Steering column 1; column housing 11; third connecting flange 111; third connecting hole 1111; third connecting lug 1112; column rotating shaft 12; insertion hole 121; inner protrusion 122; perforation 123; inner spline 124;

[0065] Hand feel simulator 2; simulator housing 21; first connecting flange 211; first connecting hole 2111; first connecting lug 2112; first stopper 212; limiting surface 213; first fixing hole 214; accommodating cavity 215; opening 216; second mounting lug 217; rotation stopping rod 218; simulator output shaft 22; rotating shaft 221; insertion shaft 2211; outer groove 2212; threaded hole 2213; outer spline 2214; connecting spline 2215; clamping groove 2216; rotating disc 222; second stopper 2221;

[0066] First limiting piece 3; first rotating disc 31; second fixing hole 311; limiting rod 32; first protrusion 33; second protrusion 34; first damping sleeve 35; second damping sleeve 36;

[0067] Second limiting piece 4; second rotating disc 41; third protrusion 42; first part 421; second part 422;

[0068] Bearing 51; clamping spring 52; third damping sleeve 53;

[0069] Dust cover 6; buckle 61;

[0070] Connecting piece 71; rotating shaft damping piece 72; avoiding hole 721;

[0071] First mounting bracket 81; first mounting part 811; second mounting bracket 82; first connecting part 821; second connecting part 822; second mounting part 823; first mounting lug 824; connecting barrel 83; mounting bracket damping piece 84;

[0072] The angle adjusting unit 91 includes a first support 911, a first screw 9111, a second screw 9112, a first lead screw 912, a first motor 913, and a first damping pad 914.

[0073] The transition housing 10 includes a second connecting flange 101, a second connecting hole 1011, a second connecting lug 1012, a fourth connecting flange 102, a fourth connecting hole 1021, a fourth connecting lug 1022, a rotating shaft hole 103, a first fastener 104, and a second fastener 105.

[0074] The steering wheel 200, the steer-by-wire steering column 300, the vehicle wheel 400, and the vehicle domain controller 500. DETAILED DESCRIPTION

[0075] Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present disclosure, and cannot be understood as a limitation of the present disclosure.

[0076] The steer-by-wire steering column includes a steering column and a feel simulator, wherein the steering column includes a column housing and a column rotating shaft arranged in the column housing, and the feel simulator includes a simulator housing and a simulator output shaft arranged in the simulator housing. In the related art, the column housing and the simulator housing are in an integrated structure, and the column rotating shaft and the simulator output shaft are also in an integrated structure, which leads to that the steering column and the feel simulator cannot be designed and manufactured individually, resulting in a high manufacturing cost of the steer-by-wire steering column. In addition, in the after-sales maintenance stage, the single components cannot be disassembled or replaced, resulting in a high after-sales maintenance cost, and further resulting in a high overall cost of the steer-by-wire steering column.

[0077] Reference is made below to Figures 1 to 33 The steer-by-wire steering column 100 of the embodiment of the present disclosure is described.

[0078] As Figures 1 to 7 shown, the steer-by-wire steering column 100 of the embodiment of the present disclosure includes a steering column 1 and a feel simulator 2. The steering column 1 includes a column housing 11 and a column rotating shaft 12 rotatably arranged in the column housing 11. The feel simulator 2 includes a simulator housing 21 and a simulator output shaft 22 rotatably arranged in the simulator housing 21. The simulator housing 21 is detachably connected with the column housing 11, and the simulator output shaft 22 is detachably connected with the column rotating shaft 12.

[0079] In this embodiment of the steer-by-wire column 100, the simulator housing 21 is detachably connected to the column housing 11, and the simulator output shaft 22 is detachably connected to the column shaft 12. This allows the steering column 1 and the steering simulator 2 to be manufactured and processed separately, and to be disassembled and replaced separately. Compared with related technologies where the steering column and steering simulator are integrated, this design effectively improves the flexibility of the steer-by-wire column 100 in design, manufacturing, and after-sales maintenance, thereby reducing the cost of the steer-by-wire column 100.

[0080] Therefore, the steer-by-wire column 100 of the present disclosure has advantages such as low cost.

[0081] In some embodiments, the steering column 100 further includes a transition housing 10, and both the simulator housing 21 and the column housing 11 are detachably connected to the transition housing 10, so that the simulator housing 21 is detachably connected to the column housing 11. In other words, the simulator housing 21 is detachably connected to the column housing 11 via the transition housing 10.

[0082] By setting up a transition shell 10, the simulator shell 21 and the tubing shell 11 are connected, so that the simulator shell 21 does not need to be directly connected to the tubing shell 11.

[0083] Therefore, when designing the simulator housing 21 and the column housing 11, there is no limitation on the connection structure between the simulator housing 21 and the column housing 11. It is only necessary to design connection structures suitable for connecting with the simulator housing 21 and the column housing 11 on the transition housing 10. This is beneficial to further improve the design flexibility of the steer-by-wire column 100, thereby helping to reduce the design cost of the steer-by-wire column 100 and further reduce its cost.

[0084] Of course, in some other embodiments, the transition housing 10 may not be provided, and the simulator housing 21 may be directly connected to the column housing 11.

[0085] Optionally, one of the simulator housing 21 and the column housing 11 is provided with a first connecting flange 211, and the transition housing 10 is provided with a second connecting flange 101, which is detachably connected to the first connecting flange 211.

[0086] For example, such as Figure 4 As shown, the simulator housing 21 is provided with a first connecting flange 211, and the transition housing 10 is provided with a second connecting flange 101. The second connecting flange 101 is detachably connected to the first connecting flange 211, thereby realizing the detachable connection between the simulator housing 21 and the transition housing 10.

[0087] By setting the first connecting flange 211 and the second connecting flange 101, it is convenient to connect and detach one of the simulator shell 21 and the column shell 11 with the transition shell 10, thereby not only facilitating to reduce the assembly cost of the steer-by-wire column 100, but also facilitating to reduce the after-sales maintenance cost of the steer-by-wire column 100.

[0088] Optionally, the other one of the simulator shell 21 and the column shell 11 is provided with a third connecting flange 111, and the transition shell 10 is provided with a fourth connecting flange 102, and the fourth connecting flange 102 is detachably connected with the third connecting flange 111.

[0089] For example, as shown in Figure 4 the third connecting flange 111 is arranged on the column shell 11, and the fourth connecting flange 102 is arranged on the transition shell 10, and the fourth connecting flange 102 is detachably connected with the third connecting flange 111, thereby realizing the detachable connection of the column shell 11 with the transition shell 10.

[0090] By setting the third connecting flange 111 and the fourth connecting flange 102, it is convenient to connect and detach the other one of the simulator shell 21 and the column shell 11 with the transition shell 10, thereby not only facilitating to further reduce the assembly cost of the steer-by-wire column 100, but also facilitating to further reduce the after-sales maintenance cost of the steer-by-wire column 100.

[0091] Optionally, a plurality of first connecting holes 2111 are arranged on the first connecting flange 211, a plurality of second connecting holes 1011 are arranged on the second connecting flange 101, the plurality of second connecting holes 1011 correspond one by one with the plurality of first connecting holes 2111, so as to pass the first fastener 104 through the corresponding second connecting hole 1011 and the first connecting hole 2111. A plurality of third connecting holes 1111 are arranged on the third connecting flange 111, and a plurality of fourth connecting holes 1021 are arranged on the fourth connecting flange 102, the plurality of fourth connecting holes 1021 correspond one by one with the plurality of third connecting holes 1111, so as to pass the second fastener 105 through the corresponding fourth connecting hole 1021 and the third connecting hole 1111. Wherein, the first fastener 104 and the second fastener 105 can be bolts.

[0092] For example, as shown in Figures 5 to 7As shown, the first connecting flange 211 is provided with three first connecting holes 2111, and the three first connecting holes 2111 are uniformly distributed along the circumference of the first connecting flange 211. The second connecting flange 101 is provided with three second connecting holes 1011, and the three second connecting holes 1011 are uniformly distributed along the circumference of the second connecting flange 101. The three first connecting holes 2111 correspond to the three second connecting holes 1011 one by one, and the three first fasteners 104 pass through the corresponding first connecting holes 2111 and second connecting holes 1011 respectively, so as to realize the connection between the transition shell 10 and the simulator shell 21. The third connecting flange 111 is provided with three third connecting holes 1111, and the three third connecting holes 1111 are uniformly distributed along the circumference of the third connecting flange 111. The fourth connecting flange 102 is provided with three fourth connecting holes 1021, and the three fourth connecting holes 1021 are uniformly distributed along the circumference of the fourth connecting flange 102. The three third connecting holes 1111 correspond to the three fourth connecting holes 1021 one by one, and the three second fasteners 105 pass through the corresponding third connecting holes 1111 and fourth connecting holes 1021 respectively, so as to realize the connection between the transition shell 10 and the column shell 11.

[0093] Therefore, the connection and disassembly of the simulator shell 21 and the column shell 11 with the transition shell 10 are further facilitated, so as to not only facilitate further reduction of the assembly cost of the steer-by-wire column 100, but also facilitate further reduction of the after-sales maintenance cost of the steer-by-wire column 100.

[0094] Optionally, the first connecting flange 211 comprises a plurality of first connecting lugs 2112, and each first connecting lug 2112 is provided with at least one first connecting hole 2111.

[0095] For example, as shown in Figure 6 and Figure 7 , the first connecting flange 211 comprises three first connecting lugs 2112, and each first connecting lug 2112 is provided with one first connecting hole 2111.

[0096] Therefore, compared with the first connecting flange 211 being a circular flange, the material usage of the first connecting flange 211 can be reduced, so as to facilitate further reduction of the cost of the steer-by-wire column 100.

[0097] Optionally, the third connecting flange 111 comprises a plurality of third connecting lugs 1112, and each third connecting lug 1112 is provided with at least one third connecting hole 1111.

[0098] For example, as shown in Figure 6 and Figure 7 , the third connecting flange 111 comprises three third connecting lugs 1112, and each third connecting lug 1112 is provided with one third connecting hole 1111.

[0099] Therefore, compared with setting the third connecting flange 111 as a circular flange, the material usage of the third connecting flange 111 can be reduced, which is conducive to further reducing the cost of the steer-by-wire column 100.

[0100] Optionally, the second connecting flange 101 includes a plurality of second connecting lugs 1012, each second connecting lug 1012 having at least one second connecting hole 1011. The fourth connecting flange 102 includes a plurality of fourth connecting lugs 1022, each fourth connecting lug 1022 having at least one fourth connecting hole 1021.

[0101] For example, such as Figure 6 and Figure 7 As shown, the second connecting flange 101 includes three second connecting lugs 1012, each of which has a second connecting hole 1011. The fourth connecting flange 102 includes three fourth connecting lugs 1022, each of which has a fourth connecting hole 1021.

[0102] Therefore, compared with setting the second connecting flange 101 and the fourth connecting flange 102 as annular flanges, the material usage of the second connecting flange 101 and the fourth connecting flange 102 can be reduced, which is conducive to further reducing the cost of the steer-by-wire column 100.

[0103] Optionally, such as Figure 5 As shown, the second connecting lug 1012 and the fourth connecting lug 1022 are staggered along the circumference of the transition housing 10. In other words, the second connecting lug 1012 and the fourth connecting lug 1022 are staggered at a certain angle in the circumference of the transition housing 10.

[0104] Therefore, when using the first fastener 104 to connect the first connecting flange 211 and the second connecting flange 101, interference between the fourth connecting lug 1022 and the first fastener 104 can be avoided; correspondingly, when using the second fastener 105 to connect the third connecting flange 111 and the fourth connecting flange 102, interference between the second connecting lug 1012 and the second fastener 105 can be avoided. This helps to further reduce the assembly cost and after-sales maintenance cost of the steering column 100.

[0105] Furthermore, it is understood that the second connecting lug 1012 and the fourth connecting lug 1022 are staggered along the circumference of the transition housing 10 to avoid interference between the first fastener 104 and the fourth connecting lug 1022, and between the second fastener 105 and the second connecting lug 1012. In this case, the distance between the second connecting lug 1012 and the fourth connecting lug 1022 in the length direction of the transition housing 10 can be smaller, thereby reducing the length of the transition housing 10.

[0106] Of course, in other embodiments, the second connecting lug 1012 and the fourth connecting lug 1022 can also be arranged in alignment, while increasing the spacing between the second connecting lug 1012 and the fourth connecting lug 1022 to avoid the first fastener 104 interfering with the fourth connecting lug 1022 and the second fastener 105 interfering with the second connecting lug 1012.

[0107] Optionally, as shown in Figure 5 , the transition housing 10 is cylindrical, and the second connecting flange 101 and the fourth connecting flange 102 are arranged in the length direction of the transition housing 10.

[0108] The second connecting flange 101 and the fourth connecting flange 102 are arranged in the length direction of the transition housing 10, which facilitates distinguishing the second connecting flange 101 and the fourth connecting flange 102, thereby effectively avoiding the second connecting flange 101 being mistakenly connected with the third connecting flange 111 and the fourth connecting flange 102 being mistakenly connected with the first connecting flange 211, which is beneficial to further improve the assembly efficiency of the simulator housing 21 and the column housing 11, thereby being beneficial to further reduce the assembly cost and the after-sales maintenance cost of the steer-by-wire column 100.

[0109] Optionally, as shown in Figure 3 , the transition housing 10 has a rotation shaft hole 103, one of the column rotation shaft 12 and the simulator output shaft 22 passes through the rotation shaft hole 103 and is detachably connected with the other one of the column rotation shaft 12 and the simulator output shaft 22.

[0110] One of the column rotation shaft 12 and the simulator output shaft 22 passes through the rotation shaft hole 103, so that the connection of the column rotation shaft 12 and the simulator output shaft 22 can be performed outside the transition housing 10. Compared with performing the connection of the column rotation shaft 12 and the simulator output shaft 22 inside the transition housing 10, the connection of the column rotation shaft 12 and the simulator output shaft 22 is facilitated, thereby further facilitating the connection and disconnection of the steer-by-wire column 100, which is beneficial to further reduce the assembly cost and the after-sales maintenance cost of the steer-by-wire column 100.

[0111] It can be understood that when the steering column 1 and the feel simulator 2 can be designed and manufactured separately, the steering column 1 and the feel simulator 2 can also be supplied by different suppliers, for example, the steering column 1 is supplied by a supplier skilled in manufacturing the steering column 1, and the feel simulator 2 is supplied by a supplier skilled in manufacturing the feel simulator 2, which is beneficial to improve the product quality of the steer-by-wire column 100.

[0112] Optionally, as shown in Figure 1 , Figure 2 and Figure 4As shown, the steer-by-wire column 100 comprises a first mounting bracket 81 and a second mounting bracket 82. The first mounting bracket 81 is connected with the column housing 11, and the first mounting bracket 81 has a first mounting portion 811 for connecting with a vehicle body or an instrument panel beam. The second mounting bracket 82 has a first connecting portion 821 and a second connecting portion 822, and the second mounting bracket 82 has a second mounting portion 823 for rotationally connecting with the vehicle body or the instrument panel beam. The first connecting portion 821 is detachably connected with the column housing 11, and the second connecting portion 822 is detachably connected with the simulator housing 21.

[0113] When the steer-by-wire column 100 is installed on a vehicle for use, the first mounting portion 811 can be connected with the vehicle body or the instrument panel beam, and the second mounting portion 823 can be rotationally connected with the vehicle body or the instrument panel beam assembly. The angle adjustment of the steering column 1 can be realized by rotating the second mounting bracket 82, so as to realize the angle adjustment of the steering wheel connected with the steering column 1. It can be understood that, since the second mounting bracket 82 is arranged close to the feel simulator 2, the rotation center of the steer-by-wire column 100 is arranged close to the feel simulator 2. Thus, when the steering column 1 is adjusted in angle, on the one hand, the motion envelope of the feel simulator 2 can be effectively reduced, so as to reduce the occupied space of the steer-by-wire column 100, and more space can be provided for the cabin of the vehicle; on the other hand, the modal of the steering column 1 can also be effectively improved.

[0114] Optionally, the first connecting portion 821 is fixedly connected with the column housing 11. For example, the first connecting portion 821 is welded with the column housing 11.

[0115] Optionally, as shown in Figures 8 to 11 the second mounting bracket 82 comprises a first mounting lug 824, and the first mounting lug 824 is provided with a first mounting hole. The simulator housing 21 has a second mounting lug 217, and the second mounting lug 217 is provided with a second mounting hole. The second mounting hole is aligned with the first mounting hole for the connecting cylinder 83 to pass through, and the first mounting lug 824 forms the second connecting portion 822, and the connecting cylinder 83 forms the second mounting portion 823. The rotation center of the steering wheel during the angle adjustment can be the axis of the connecting cylinder 83.

[0116] When the second mounting bracket 82 is connected with the vehicle body, a pin shaft can pass through the connecting cylinder 83, and the pin shaft is fixedly connected with the vehicle body. The connecting cylinder 83 can rotate relative to the pin shaft, so as to rotationally connect the second mounting bracket 82 with the vehicle body.

[0117] The first mounting ear 824 is arranged on the second mounting frame 82, the second mounting ear 217 is arranged on the simulator housing 21, and the connecting barrel 83 passes through the first mounting hole of the first mounting ear 824 and the second fixing hole of the second mounting ear 217, so that the second mounting frame 82 and the simulator housing 21 are connected. When connecting the second mounting frame 82 and the simulator housing 21, only the connecting barrel 83 needs to pass through the aligned first mounting hole and second fixing hole; when disassembling the second mounting frame 82 and the simulator housing 21, only the connecting barrel 83 needs to be pulled out of the first mounting hole and the second fixing hole, which facilitates the connection and disassembly of the second mounting frame 82 and the simulator housing 21, thereby further reducing the assembly cost and after-sales maintenance cost of the steer-by-wire column 100.

[0118] In addition, the connecting barrel 83 not only connects the second mounting frame 82 and the simulator housing 21, but also forms the second mounting portion 823, which is conducive to simplifying the structure of the steer-by-wire column 100 and further reducing the cost of the steer-by-wire column 100.

[0119] Of course, in other embodiments, the second mounting frame 82 and the simulator housing 21 can also be connected in other ways. For example, the second mounting frame 82 and the simulator housing 21 are connected by bolts, and the second mounting frame 82 is additionally provided with a mounting frame hole for rotating connection with the vehicle body.

[0120] Optionally, as shown in Figure 9 The number of first mounting ears 824 is two, and the two first mounting ears 824 are arranged in a spaced manner along the extension direction of the first mounting hole. The second mounting ear 217 is arranged between the two first mounting ears 824.

[0121] The second mounting ear 217 is arranged between the two first mounting ears 824, so that in the extension direction of the first mounting hole, the second mounting ear 217 can be clamped by the two first mounting ears 824, the positioning between the first mounting ear 824 and the second mounting ear 217 is realized, which is conducive to improving the connection efficiency of the second mounting ear 217 and the first mounting ear 824, and further reducing the assembly cost and after-sales maintenance cost of the steer-by-wire column 100.

[0122] In other embodiments, the number of second mounting ears 217 is two, and the two second mounting ears 217 are arranged in a spaced manner along the extension direction of the second fixing hole. The first mounting ear 824 is arranged between the two second mounting ears 217.

[0123] The first mounting lug 824 is arranged between the two second mounting lugs 217, so that the first mounting lug 824 can be clamped by the two second mounting lugs 217 in the extension direction of the second fixing hole, the positioning between the first mounting lug 824 and the second mounting lug 217 is realized, which is beneficial to improve the connection efficiency of the second mounting lug 217 and the first mounting lug 824, and is beneficial to further reduce the assembly cost and after-sales maintenance cost of the steer-by-wire column 100.

[0124] Of course, in other embodiments, the number of the second mounting lug 217 and the first mounting lug 824 can also be one; the number of the second mounting lug 217 and the first mounting lug 824 can also be more than two.

[0125] Optionally, as shown in Figure 4 , Figure 9 , Figure 10 and Figure 11 , the steer-by-wire column 100 further comprises a mounting frame damping member 84, the mounting frame damping member 84 is a damping sleeve, and the damping sleeve is sleeved on the connecting barrel 83 to separate the connecting barrel 83 from the hole wall of the first mounting hole.

[0126] The mounting frame damping member 84 can play a role in damping and noise reduction, which is beneficial to improve the reliability of the steer-by-wire column 100 and reduce the noise of the steer-by-wire column 100.

[0127] In some embodiments, as shown in Figures 13 to 19 and Figure 22 , one of the simulator output shaft 22 and the column rotating shaft 12 is provided with a socket 121, and the other of the simulator output shaft 22 and the column rotating shaft 12 is provided with a plug shaft 2211. The plug shaft 2211 is inserted into the socket 121, and the outer periphery of the plug shaft 2211 is in contact with the hole wall of the socket 121.

[0128] For example, as shown in Figure 13 , the simulator output shaft 22 is provided with a socket 121, and the column rotating shaft 12 is provided with a plug shaft 2211, and the plug shaft 2211 is inserted into the socket 121.

[0129] By inserting the plug shaft 2211 into the socket 121, and the outer periphery of the plug shaft 2211 is in contact with the hole wall of the socket 121, the contact area between the simulator output shaft 22 and the column rotating shaft 12 can be improved, which is beneficial to improve the connection reliability of the simulator output shaft 22 and the column rotating shaft 12, and is beneficial to improve the reliability of the steer-by-wire column 100.

[0130] Of course, in other embodiments, a socket can be provided on the simulator output shaft 22, and a shaft can be provided on the column shaft 12. Alternatively, neither the simulator output shaft 22 nor the column shaft 12 can be provided with a socket or a shaft. In this case, connecting segments can be provided on both the simulator output shaft 22 and the column shaft 12, with the connecting segments of the simulator output shaft 22 and the column shaft 12 stacked and detachably connected.

[0131] Optionally, the simulator output shaft 22 and the column shaft 12 are coaxially arranged, and the center line of the socket 121 coincides with the axis of the column shaft 12. In other words, the simulator output shaft 22, the column shaft 12, the socket shaft 2211 and the socket 121 are coaxially arranged.

[0132] This simplifies the structure of the simulator output shaft 22 and the column shaft 12, further facilitating their processing and manufacturing, and thus helping to further reduce the cost of the steer-by-wire column 100.

[0133] Optionally, the outer peripheral surface of the insertion shaft 2211 is anti-rotationally fitted with the wall of the insertion hole 121.

[0134] When transmitting torque between the simulator output shaft 22 and the column shaft 12, the outer circumferential surface of the insert shaft 2211 and the hole wall of the insert hole 121 are used to prevent rotation, which can increase the force transmission area between the simulator output shaft 22 and the column shaft 12. This can prevent deformation or breakage at the connection between the simulator output shaft 22 and the column shaft 12 due to excessive local stress, and further improve the reliability of the steer-by-wire column 100.

[0135] Optionally, the insertion shaft 2211 is prismatic, and the outer periphery of the insertion hole 121 is prismatic, so that the outer periphery of the insertion shaft 2211 and the hole wall of the insertion hole 121 are anti-rotationally fitted.

[0136] For example, such as Figure 6 , Figure 13 , Figure 15 and Figure 16 As shown, the insertion shaft 2211 is a quadrangular prism, and correspondingly, the outer periphery of the insertion hole 121 is also a quadrangular prism, meaning the cross-section of the insertion shaft 2211 is rectangular. At this time, the outer periphery of the insertion shaft 2211 includes four side surfaces, and the hole wall of the insertion hole 121 includes four side walls, with each of the four side surfaces corresponding to and fitting against the other four side walls. When transmitting torque between the simulator output shaft 22 and the column shaft 12, the four side surfaces fitting against the other four side walls respectively achieves a non-rotational fit between the insertion shaft 2211 and the insertion hole 121. The cross-section of the insertion shaft 2211 can be rectangular (e.g., ...). Figure 6 , Figure 13 and Figure 15 As shown), it can also be a square (such as...).Figure 16 As shown in

[0137] For example, as shown in Figure 17 the outer periphery of the insertion hole 121 is also a triangular prism, that is, the cross section of the insertion shaft 2211 is a triangle. At this time, the outer periphery of the insertion shaft 2211 includes three side surfaces, and the hole wall of the insertion hole 121 includes three side walls, which are one-to-one corresponding and fitted. When transmitting torque between the simulator output shaft 22 and the pipe column rotating shaft 12, the three side surfaces and the three side walls are respectively fitted to realize the rotation-stopping cooperation of the insertion shaft 2211 and the insertion hole 121. The cross section of the insertion shaft 2211 can be an equilateral triangle, an isosceles triangle, a right triangle, or an irregular triangle.

[0138] For example, as shown in Figure 18 the outer periphery of the insertion hole 121 is also a triangular prism, that is, the cross section of the insertion shaft 2211 is a triangle. At this time, the outer periphery of the insertion shaft 2211 includes three side surfaces, and the hole wall of the insertion hole 121 includes three side walls, which are one-to-one corresponding and fitted. When transmitting torque between the simulator output shaft 22 and the pipe column rotating shaft 12, the three side surfaces and the three side walls are respectively fitted to realize the rotation-stopping cooperation of the insertion shaft 2211 and the insertion hole 121. The cross section of the insertion shaft 2211 can be an equilateral triangle, an isosceles triangle, a right triangle, or an irregular triangle.

[0139] By setting the insertion shaft 2211 as a prism and the outer periphery of the insertion hole 121 as a prism, no additional rotation-stopping cooperation structure needs to be provided on the insertion shaft 2211 and the insertion hole 121, which facilitates the processing and manufacturing of the insertion shaft 2211 and the insertion hole 121, thereby being conducive to further reducing the cost of the steer-by-wire pipe column 100.

[0140] Optionally, the outer periphery of the insertion shaft 2211 is formed with an outer groove 2212, and the hole wall of the insertion hole 121 is formed with an inner protrusion 122, which cooperates with the outer groove 2212 to facilitate the rotation-stopping cooperation of the outer periphery of the insertion shaft 2211 and the hole wall of the insertion hole 121.

[0141] For example, as shown in Figure 19 and Figure 20 the cross section of the insertion shaft 2211 is a plum blossom shape, so that the outer periphery of the insertion shaft 2211 is formed with a plurality of outer grooves, the shape of the insertion hole 121 is matched with the insertion shaft 2211, and a plurality of inner protrusions 122 are formed on the hole wall of the insertion hole 121, which are arranged in the outer grooves 2212. When transmitting torque between the simulator output shaft 22 and the pipe column rotating shaft 12, the inner protrusions 122 and the outer grooves 2212 are used to realize the rotation-stopping cooperation of the insertion shaft 2211 and the insertion hole 121.

[0142] By arranging the outer grooves 2212 on the outer circumferential surface of the insertion shaft 2211 and the inner protrusions 122 on the hole wall of the insertion hole 121, no additional structure for rotation-stopping cooperation needs to be arranged on the insertion shaft 2211 and the insertion hole 121, which facilitates the processing and manufacturing of the insertion shaft 2211 and the insertion hole 121, thereby being conducive to further reducing the cost of the wire control steering column 100.

[0143] Optionally, the number of the outer grooves 2212 is a plurality, the plurality of outer grooves 2212 are arranged at intervals along the circumference of the insertion shaft 2211, the number of the inner protrusions 122 is a plurality, the plurality of inner protrusions 122 are arranged at intervals along the circumference of the insertion hole 121. The plurality of inner protrusions 122 correspond to the plurality of outer grooves 2212 one by one, and each inner protrusion 122 cooperates with the corresponding outer groove 2212.

[0144] For example, as shown in Figure 19 and Figure 20 , the number of the outer grooves 2212 and the inner protrusions 122 is four, the four outer grooves 2212 are arranged at intervals along the circumference of the insertion shaft 2211, and the four inner protrusions 122 are arranged at intervals along the circumference of the insertion hole 121.

[0145] Optionally, the outer circumferential surface of the insertion shaft 2211 is formed with outer protrusions, the hole wall of the insertion hole 121 is formed with inner grooves, and the outer protrusions cooperate with the inner grooves so as to rotationally cooperate the outer circumferential surface of the insertion shaft 2211 with the hole wall of the insertion hole 121.

[0146] By arranging the outer protrusions on the outer circumferential surface of the insertion shaft 2211 and the inner grooves on the hole wall of the insertion hole 121, no additional structure for rotation-stopping cooperation needs to be arranged on the insertion shaft 2211 and the insertion hole 121, which facilitates the processing and manufacturing of the insertion shaft 2211 and the insertion hole 121, thereby being conducive to further reducing the cost of the wire control steering column 100.

[0147] Optionally, the number of the outer protrusions is a plurality, the plurality of outer protrusions are arranged at intervals along the circumference of the insertion shaft 2211, the number of the inner grooves is a plurality, the plurality of inner grooves are arranged at intervals along the circumference of the insertion hole 121. The plurality of inner grooves correspond to the plurality of outer protrusions one by one, and each inner groove cooperates with the corresponding outer protrusion.

[0148] For example, the number of the outer protrusions and the inner grooves is four, the four outer protrusions are arranged at intervals along the circumference of the insertion shaft 2211, and the four inner grooves are arranged at intervals along the circumference of the insertion hole 121.

[0149] Optionally, the outer circumferential surface of the insertion shaft 2211 is provided with outer grooves and outer protrusions, the hole wall of the insertion hole 121 is provided with inner protrusions and inner grooves, the outer protrusions are arranged in the inner grooves, and the inner protrusions are arranged in the outer grooves, so as to rotationally cooperate the outer circumferential surface of the insertion shaft 2211 with the hole wall of the insertion hole 121.

[0150] Optionally, as shown in Figure 22 and Figure 22As shown, the outer circumferential surface of the insertion shaft 2211 is provided with external splines 2214, and the hole wall of the insertion hole 121 is provided with internal splines 124, which are matched with the external splines 2214 so as to make the outer circumferential surface of the insertion shaft 2211 rotationally matched with the hole wall of the insertion hole 121.

[0151] By providing the external splines 2214 on the outer circumferential surface of the insertion shaft 2211 and the internal splines 124 on the hole wall of the insertion hole 121, no additional structure for rotationally matching the insertion shaft 2211 and the insertion hole 121 is needed, which facilitates the processing and manufacturing of the insertion shaft 2211 and the insertion hole 121, thereby being conducive to further reducing the cost of the steer-by-wire column 100.

[0152] In some embodiments, the simulator output shaft 22 is detachably connected with the column rotating shaft 12 through the connecting piece 71.

[0153] The connecting piece 71 can be a bolt, a screw, etc.

[0154] In this way, the connection and disconnection of the simulator output shaft 22 and the column rotating shaft 12 are facilitated, thereby facilitating the assembly and replacement of the simulator output shaft 22 and the column rotating shaft 12.

[0155] Optionally, the connecting piece 71 is a threaded fastener, the hole wall of the insertion hole 121 is provided with a through hole 123 for the connecting piece 71 to pass through, and the insertion shaft 2211 is provided with a threaded hole 2213 connected with the connecting piece 71.

[0156] For example, as shown in Figures 13 to 19 , Figure 22 , Figure 23 the connecting piece 71 is a screw, the screw passes through the through hole 123 and is threadedly connected with the threaded hole 2213.

[0157] When connecting the simulator output shaft 22 and the column rotating shaft 12, only need to insert the insertion shaft 2211 into the insertion hole 121, align the through hole 123 with the threaded hole 2213, and then pass the connecting piece 71 through the through hole 123 and threadedly connect it with the threaded hole 2213, so as to realize the connection of the simulator output shaft 22 and the column rotating shaft 12; when disassembling the simulator output shaft 22 and the column rotating shaft 12, only need to unscrew the connecting piece 71 from the threaded hole 2213 and take it out from the through hole 123, and then the insertion shaft 2211 can be pulled out from the insertion hole 121, realizing the disassembly of the simulator output shaft 22 and the column rotating shaft 12.

[0158] In this way, the connection and disconnection of the simulator output shaft 22 and the column rotating shaft 12 are further facilitated.

[0159] Optionally, the number of the through holes 123, the threaded holes 2213 and the connecting pieces 71 is multiple, and the multiple through holes 123, the multiple threaded holes 2213 and the multiple connecting pieces 71 are in one-to-one correspondence, and each connecting piece 71 is connected with a corresponding through hole 123 and a corresponding threaded hole 2213.

[0160] For example, as shown in Figure 13 and Figure 14 , the number of the through holes 123, the threaded holes 2213 and the connecting pieces 71 is four.

[0161] By setting the number of the through holes 123, the threaded holes 2213 and the connecting pieces 71 as multiple, the connection between the simulator output shaft 22 and the column rotating shaft 12 is realized by using multiple connecting pieces 71, which can effectively improve the connection reliability between the simulator output shaft 22 and the column rotating shaft 12, and is conducive to further improving the reliability of the steer-by-wire column 100.

[0162] Of course, in other embodiments, the number of the through holes 123, the threaded holes 2213 and the connecting pieces 71 can also be only one, that is, the connection between the simulator output shaft 22 and the column rotating shaft 12 is realized by one connecting piece 71.

[0163] Optionally, the corresponding through holes 123, threaded holes 2213 and connecting pieces 71 form a fastening assembly. Part of the fastening assemblies and another part of the fastening assemblies are arranged in the length direction of the insertion hole 121.

[0164] For example, as shown in Figure 13 and Figure 14 , the number of the through holes 123, the threaded holes 2213 and the connecting pieces 71 is four, and the four through holes 123, the four threaded holes 2213 and the four connecting pieces 71 form four fastening assemblies. Among them, two fastening assemblies are arranged on one side of the other two fastening assemblies in the length direction of the insertion hole 121.

[0165] Therefore, in the length direction of the insertion hole 121, there are at least two connection points between the simulator output shaft 22 and the column rotating shaft 12, which is conducive to improving the stress uniformity of the simulator output shaft 22 and the column rotating shaft 12 in the length direction of the insertion hole 121, and is conducive to further improving the reliability of the steer-by-wire column 100.

[0166] Optionally, part of the fastening assemblies and another part of the fastening assemblies are arranged in the radial direction of the insertion hole 121.

[0167] For example, as shown in Figure 13 and Figure 14 , among them, two fastening assemblies are arranged on one side of the other two fastening assemblies in the radial direction of the insertion hole 121.

[0168] Thus, in the radial direction of the insertion hole 121, the simulator output shaft 22 and the column rotating shaft 12 have at least two connection points, which is conducive to improving the force uniformity between the simulator output shaft 22 and the column rotating shaft 12 in the radial direction of the insertion hole 121, and is conducive to further improving the reliability of the steer-by-wire column 100.

[0169] Optionally, the two threaded holes 2213 opposite in the radial direction of the insertion hole 121 are mutually through.

[0170] For example, as shown in Figure 15 、 Figure 16 、 Figure 18 、 Figure 19 and Figure 22 , the two threaded holes 2213 opposite in the radial direction of the insertion hole 121 are coaxial and mutually communicated.

[0171] Thus, when the threaded hole 2213 is processed, a threaded through hole can be processed on the insertion shaft 2211, a part of the threaded through hole is threadedly connected with one connecting piece 71, and another part of the threaded through hole is threadedly connected with another connecting piece 71, thereby facilitating the processing and manufacturing of the insertion shaft 2211 and being conducive to further reducing the cost of the steer-by-wire column 100.

[0172] Of course, in other embodiments, the two threaded holes 2213 opposite in the radial direction of the insertion hole 121 can also be spaced apart, i.e., the two threaded holes 2213 opposite in the radial direction of the insertion hole 121 are not mutually through.

[0173] In some embodiments, as shown in Figure 12 、 Figures 15 to 19 、 Figure 22 , a rotating shaft damping piece 72 is arranged between the outer circumferential surface of the insertion shaft 2211 and the hole wall of the insertion hole 121. The rotating shaft damping piece 72 can be a plastic or rubber piece.

[0174] When the torque is transmitted between the simulator output shaft 22 and the column rotating shaft 12, the rotating shaft damping piece 72 can play a role in damping and noise reduction, which is conducive to further improving the reliability of the steer-by-wire column 100 and reducing the noise of the steer-by-wire column 100.

[0175] Optionally, as shown in Figure 12 、 Figures 15 to 19 、 Figure 22 , the rotating shaft damping piece 72 is a damping sleeve, and the damping sleeve is sleeved on the insertion shaft 2211. The inner surface of the damping sleeve is attached to the outer circumferential surface of the insertion shaft 2211, and the outer surface of the damping sleeve is attached to the hole wall of the insertion hole 121.

[0176] It can be understood that, as Figure 13As shown, when the through hole 123 is arranged on the insertion hole 121 and the threaded hole 2213 is arranged on the insertion shaft 2211, the rotation shaft damping part 72 is provided with an avoiding hole 721 for avoiding the connecting part 71. At this time, the connecting part 71 passes through the through hole 123 and the avoiding hole 721 in sequence and is threadedly connected with the threaded hole 2213.

[0177] Therefore, when connecting the simulator output shaft 22 and the pipe column rotation shaft 12, it is only needed to first wrap the damping sleeve on the insertion shaft 2211 and then insert the insertion shaft 2211 into the insertion hole 121, which facilitates the installation and fixation of the rotation shaft damping part 72 and further facilitates the connection of the simulator output shaft 22 and the pipe column rotation shaft 12.

[0178] Of course, in other embodiments, the rotation shaft damping part 72 can also be a damping sheet which is clamped between the outer circumferential surface of the insertion shaft 2211 and the hole wall of the insertion hole 121 or is directly injection molded on the outer circumferential surface of the insertion shaft 2211.

[0179] As shown, Figures 24 to 31 the limiting device is arranged between the simulator housing 21 and the simulator output shaft 22, and the limiting device comprises a first stop part 212, a second stop part 2221 and a first limiting part 3. The first stop part 212 is arranged on the simulator housing 21, and the second stop part 2221 is arranged on the simulator output shaft 22. The first limiting part 3 can rotate relative to the simulator output shaft 22 about the rotation axis. The first limiting part 3 comprises a first rotating disc 31, a first protrusion 33 and a second protrusion 34, and the first protrusion 33 and the second protrusion 34 are respectively arranged on the two axial sides of the first rotating disc 31. When the simulator output shaft 22 rotates by a first preset angle, the second stop part 2221 abuts against the first protrusion 33, so that the simulator output shaft 22 pushes the first limiting part 3 to rotate synchronously. When the simulator output shaft 22 rotates by a second preset angle, the second protrusion 34 directly or indirectly abuts against the first stop part 212, so that the simulator output shaft 22 and the first limiting part 3 stop rotating.

[0180] The second protrusion 34 directly or indirectly abutting against the first stop part 212 can be understood as: the second protrusion 34 directly contacts the first stop part 212, at this time, the second protrusion 34 directly abuts against the first stop part 212; or the second protrusion 34 directly abuts against a third part, and the third part directly abuts against the first stop part 212, at this time, the second protrusion 34 indirectly abuts against the first stop part 212 through the third part.

[0181] The limiting device of the embodiment of the present disclosure, when the simulator output shaft 22 rotates by a first preset angle, the second stop piece 2221 abuts against the first protrusion 33 of the first limiting piece 3, so that the simulator output shaft 22 pushes the first limiting piece 3 to rotate synchronously; when the simulator output shaft 22 rotates by a second preset angle, the second protrusion 34 directly or indirectly abuts against the first stop piece 212 of the simulator housing 21, so that the simulator output shaft 22 and the first limiting piece 3 stop rotating, thereby limiting the simulator output shaft 22. Since the first protrusion 33 and the second protrusion 34 are respectively arranged on the two sides of the axial direction of the first rotating disc 31, compared with the related art in which the limiting protrusion is arranged on the ring connected with the rotating disc, the structure of the limiting piece is simplified, so that the structure of the limiting device can be simplified and the cost of the limiting device can be reduced.

[0182] Therefore, the limiting device of the embodiment of the present disclosure has the advantages of simple structure and low cost.

[0183] In some embodiments, as shown in Figures 26 to 28 The limiting device further includes a second limiting piece 4, which can rotate relative to the first limiting piece 3 about the rotation axis. The second limiting piece 4 includes a second rotating disc 41 and a third protrusion 42 arranged on the outer circumferential surface of the second rotating disc 41. When the simulator output shaft 22 rotates to a third preset angle, the second protrusion 34 abuts against the third protrusion 42, so that the first limiting piece 3 pushes the second limiting piece 4 to rotate synchronously. When the simulator output shaft 22 rotates to the second preset angle, the third protrusion 42 abuts against the first stop piece 212, so that the simulator output shaft 22, the first limiting piece 3 and the second limiting piece 4 stop rotating.

[0184] Thus, during the rotation of the simulator output shaft 22, the simulator output shaft 22 first rotates by the first preset angle, at this time, the second stop piece 2221 abuts against the first protrusion 33 of the first limiting piece 3, and the simulator output shaft 22 pushes the first limiting piece 3 to rotate synchronously; then, the simulator output shaft 22 rotates by the third preset angle, at this time, the second protrusion 34 abuts against the third protrusion 42, and the first limiting piece 3 pushes the second limiting piece 4 to rotate synchronously, so that the simulator output shaft 22, the first limiting piece 3 and the second limiting piece 4 rotate synchronously; after that, the simulator output shaft 22 rotates by the second preset angle, at this time, the second protrusion 34 abuts against the first stop piece 212, and the simulator output shaft 22, the first limiting piece 3 and the second limiting piece 4 stop rotating, thereby limiting the simulator output shaft 22.

[0185] The first preset angle can be 90°, the third preset angle can be 355°, and the second preset angle can be 540°. It should be noted that the maximum rotation angle of the simulator output shaft 22 refers to the rotation angle of the simulator output shaft 22 when the simulator output shaft 22 rotates from the initial position to the limit position in the clockwise direction, or the rotation angle of the simulator output shaft 22 when the simulator output shaft 22 rotates from the initial position to the limit position in the counterclockwise direction. For example, the second preset angle is 540°, the rotation angle of the simulator output shaft 22 when the simulator output shaft 22 rotates from the initial position to the limit position in the clockwise direction is 540°, and the rotation angle of the simulator output shaft 22 when the simulator output shaft 22 rotates from the initial position to the limit position in the counterclockwise direction is 540°, that is, the rotation angle of the simulator output shaft 22 when the simulator output shaft 22 rotates from one limit position to the other limit position is 1080°.

[0186] By providing the second limiting piece 4, the maximum rotation angle of the simulator output shaft 22 can be effectively increased.

[0187] In some embodiments, as shown in Figure 29 and Figure 31 The first limiting piece 3 further includes a limiting rod 32, and the limiting rod 32 has a first limiting section and a second limiting section. The limiting rod 32 is inserted and assembled on the first rotating disc 31, and the first limiting section and the second limiting section are respectively arranged on the two axial sides of the first rotating disc 31, the first limiting section forms the first protrusion 33, and the second limiting section forms the second protrusion 34.

[0188] For example, as shown in Figure 29 and Figure 31 The first rotating disc 31 is provided with a second fixed hole 311, the middle part of the limiting rod 32 is inserted and assembled in the second fixed hole 311 and is in interference fit with the second fixed hole 311, so as to realize the connection between the limiting rod 32 and the first rotating disc 31. The parts of the limiting rod 32 located on the two axial sides of the first rotating disc 31 are provided in a cantilevered manner, and form the first limiting section and the second limiting section respectively.

[0189] Therefore, only the limiting rod 32 needs to be arranged on the first rotating disc 31, and the first protrusion 33 and the second protrusion 34 can be formed on the first rotating disc 31, which is beneficial to further simplify the structure of the limiting device and reduce the cost of the limiting device.

[0190] Of course, in other embodiments, limiting tables can also be respectively arranged on the two axial sides of the first rotating disc 31, and the limiting tables located on the two axial sides of the first rotating disc 31 form the first protrusion 33 and the second protrusion 34 respectively. The limiting tables and the first rotating disc 31 can be integrally formed, or the limiting tables and the first rotating disc 31 can be separately machined and connected.

[0191] Optionally, the limiting rod 32 can be a pin shaft.

[0192] Optionally, the first limiting member 3 further comprises a first damping sleeve 35 and a second damping sleeve 36, the first damping sleeve 35 is sleeved on the first limiting section, and the second damping sleeve 36 is sleeved on the second limiting section.

[0193] Thus, when the simulator output shaft 22 rotates by a first preset angle and the second stop member 2221 abuts against the first protrusion 33, the first damping sleeve 35 can separate the limiting rod 32 from the second stop member 2221; when the simulator output shaft 22 rotates by a third preset angle and the second protrusion 34 abuts against the third protrusion 42, the second damping sleeve 36 can separate the limiting rod 32 from the third protrusion 42. Thus, the rigid collision between the limiting rod 32 and the second stop member 2221 and the third protrusion 42 can be avoided, which is beneficial to reduce the wear and noise during use of the limiting device.

[0194] Optionally, the first damping sleeve 35 and the second damping sleeve 36 are both rubber sleeves. Of course, in other embodiments, the first damping sleeve 35 and the second damping sleeve 36 can also be made of plastic materials.

[0195] Optionally, the outer circumferential surface of the first protrusion 33 and the second protrusion 34 is a convex circular arc surface, the second stop member 2221 and the third protrusion 42 both have a concave circular arc surface, when the first protrusion 33 abuts against the second stop member 2221, the convex circular arc surface of the first protrusion 33 is adapted to be fitted with the concave circular arc surface of the second stop member 2221, and when the second protrusion 34 abuts against the third protrusion 42, the convex circular arc surface of the second protrusion 34 is fitted with the concave circular arc surface of the third protrusion 42.

[0196] Optionally, as shown in Figures 29 to 31 the simulator housing 21 is provided with a rotation-stopping rod 218, and the rotation-stopping rod 218 has a rotation-stopping section 141. The rotation-stopping section 141 is arranged on the side of the simulator housing 21 facing the first limiting member 3, and the rotation-stopping section 141 forms the first stop member 212.

[0197] For example, as shown in Figure 30 the simulator housing 21 is provided with a first fixing hole 214, a part of the rotation-stopping rod 218 is inserted and fitted in the first fixing hole 214 to realize the connection between the rotation-stopping rod 218 and the simulator housing 21, and another part of the rotation-stopping rod 218 is arranged in a cantilevered manner towards the first limiting member 3 to form the rotation-stopping section 141.

[0198] Thus, only the rotation-stopping rod 218 needs to be arranged on the side of the simulator housing 21 facing the first limiting member 3 to form the first stop member 212, which is beneficial to further simplify the structure of the limiting device and reduce the cost of the limiting device.

[0199] Of course, in other embodiments, a boss can also be arranged on the side of the simulator housing 21 facing the first limiting member 3, and the boss forms the first stop 212. The boss and the simulator housing 21 can be integrally formed, or the boss and the simulator housing 21 can be separately formed and connected.

[0200] Optionally, the rotation-stopping rod 218 can be a pin shaft.

[0201] Optionally, the limiting device further comprises a third damping sleeve 53, and the third damping sleeve 53 is sleeved on the rotation-stopping section 141.

[0202] Thus, when the simulator output shaft 22 rotates by the second preset angle and the first stop 212 abuts against the third protrusion 42, the third damping sleeve 53 can be used to separate the rotation-stopping rod 218 from the third protrusion 42, so that the rotation-stopping rod 218 and the third protrusion 42 can be prevented from directly colliding rigidly, which is beneficial to reducing the wear and noise during use of the limiting device.

[0203] Optionally, the third damping sleeve 53 is a rubber sleeve. Of course, in other embodiments, the third damping sleeve 53 can also be made of plastic.

[0204] Optionally, the outer circumferential surface of the first stop 212 is a convex circular arc surface, the third protrusion 42 has a concave circular arc surface, and when the first stop 212 abuts against the third protrusion 42, the convex circular arc surface of the first stop 212 is fitted with the concave circular arc surface of the third protrusion 42.

[0205] In some embodiments, as shown in Figs. Figure 27 , Figure 28 , Figure 29 and Figure 31 , the simulator output shaft 22 comprises a rotating disc 222, the second stop 2221 is a limiting protrusion, and the second stop 2221 is arranged on the outer circumferential surface of the rotating disc 222. In the extension direction of the rotating axis, the first limiting member 3 is arranged between the simulator housing 21 and the rotating disc 222.

[0206] By arranging the second stop 2221 on the outer circumferential surface of the rotating disc 222, the second stop 2221 and the rotating disc 222 can be located in the same plane in the extension direction of the rotating axis, so that the axial dimension of the limiting device is smaller, which is beneficial to reducing the overall volume of the limiting device.

[0207] Optionally, the limiting protrusion and the rotating disc 222 are integrally formed.

[0208] Of course, in other embodiments, the second stop 2221 can also be arranged on the axial side of the rotating disc 222. For example, the second stop 2221 is arranged on the side of the rotating disc 222 facing the first limiting member 3.

[0209] Optionally, the second limiting member 4 is arranged between the first limiting member 3 and the simulator housing 21, and the first stopper 212 is a rotation stopper arranged on the side of the simulator housing 21 facing the second limiting member 4.

[0210] For example, as shown in Figures 26 to 28 the simulator housing 21 has a limiting surface 213 facing the second limiting member 4, and the first stopper 212 protrudes from the limiting surface 213. The simulator output shaft 22 includes a rotating shaft 221 extending along a rotating axis, and the rotating shaft 221 is provided with a connecting spline 2215, and a rotating disc 222 is rotationally connected with the connecting spline 2215. The first rotating disc 31 and the second rotating disc 41 are both sleeved on the rotating shaft 221 and can rotate relative to the rotating shaft 221. As shown in Figures 28 to 30 the rotating shaft 221 is provided with a clamping groove 2216, and the limiting device further includes a clamping spring 52 in interference fit with the clamping groove 2216. In the axial direction of the rotating shaft 221, the first rotating disc 31, the second rotating disc 41 and the rotating disc 222 are limited by the limiting surface 213 and the clamping spring 52. When assembling the limiting device, only the first rotating disc 31, the second rotating disc 41 and the rotating disc 222 need to be sleeved on the rotating shaft 221, and the clamping spring 52 needs to be installed in the clamping groove 2216.

[0211] Thus, the assembly of the limiting device is facilitated. In addition, the first stopper 212 and the third protrusion 42 can share the same space in the extension direction of the rotating axis, which is conducive to further reducing the axial size of the limiting device and the overall volume of the limiting device.

[0212] Optionally, the first stopper 212 and the second protrusion 34 are arranged in the extension direction of the rotating axis, and the third protrusion 42 includes a first part 421 and a second part 422, and the first part 421 is arranged closer to the second protrusion 34 than the second part 422. When the simulator output shaft 22 is rotated to the third preset angle, the second protrusion 34 abuts against the first part 421. When the simulator output shaft 22 is rotated to the second preset angle, the second part 422 abuts against the first stopper 212.

[0213] It can be understood that, since the first stopper 212 and the second protrusion 34 can both abut against the third protrusion 42, the first stopper 212 and the second protrusion 34 should be prevented from interfering with each other. By arranging the first stopper 212 and the second protrusion 34 in the extension direction of the rotating axis and arranging the first stopper 212 and the second protrusion 34 to abut against different parts of the third protrusion 42 respectively, the first stopper 212 and the second protrusion 34 can be effectively prevented from interfering with each other, and the reliability of the limiting device is improved.

[0214] Of course, in other embodiments, the first stopper 212 and the second protrusion 34 can also be arranged radially apart from the rotation axis 221 so as not to interfere with each other.

[0215] Optionally, as shown in Figure 26 The simulator housing 21 has a receiving cavity 215 and an opening 216 communicating with the receiving cavity 215. The simulator output shaft 22 includes a first segment arranged in the receiving cavity 215 and a second segment extending out of the receiving cavity 215 through the opening 216, and the first limiting member 3 is connected with the second segment. The limiting device further includes a dust cover 6 connected with the simulator housing 21, and the dust cover 6 covers the first limiting member 3 and the second segment.

[0216] For example, a part of the rotation axis 221 is arranged in the receiving cavity 215 and forms the first segment, another part of the rotation axis 221 extends out of the receiving cavity 215, and the rotation disc 222 is connected with the part of the rotation axis 221 extending out of the receiving cavity 215, and the part of the rotation axis 221 extending out of the receiving cavity 215 and the rotation disc 222 form the second segment. Wherein, the part of the rotation axis 221 arranged in the receiving cavity 215 is rotatably connected with the simulator housing 21 through the bearing 51.

[0217] When assembling the limiting device, the first limiting member 3, the second limiting member 4 and the second rotation disc 222 can be sleeved on the part of the rotation axis 221 extending out of the receiving cavity 215 from the outside of the receiving cavity 215, and then the dust cover 6 is connected with the simulator housing 21. Thus, not only the assembly of the limiting device is facilitated, but also the dust inside the limiting device is prevented, which is beneficial to improve the reliability of the limiting device.

[0218] Optionally, as shown in Figure 8 The dust cover 6 is clamped with the simulator housing 21 through the buckles 61.

[0219] Optionally, as shown in Figure 1 and Figure 2 The steer-by-wire column 100 further includes an angle adjusting unit 91 connected with the steering column 1 to adjust the inclination angle of the steering column 1. As shown in Figure 32As shown, the angle adjusting unit 91 comprises a first support 911, a first bolt 9111, a second bolt 9112, a first lead screw 912, a first motor 913, and a first damping pad 914. The first support 911 is fixedly connected with the column shell 11 through the first bolt 9111, and is rotatably connected with the first mounting bracket 81 through the second bolt 9112. The first mounting bracket 81 is fixedly connected with the vehicle body. The first lead screw 912 is rotatably connected with the first support 911, and the first motor 913 is configured to drive the first lead screw 912 to rotate. The first support 911 is provided with a first sliding block, and the first sliding block is matched with the first lead screw 912. When the first lead screw 912 rotates, the first sliding block moves along the length direction of the first lead screw 912, so that the steering column 1 swings. The first damping pad 914 is fixed at both ends of the first lead screw 912, and functions to limit the first sliding block and reduce vibration and noise.

[0220] Optionally, as shown in Figure 1 and Figure 2 , the steer-by-wire steering column 100 further comprises a length adjusting unit 92, which is connected with the steering column 1 to adjust the length of the steering column 1. As shown in Figure 33 , the length adjusting unit 92 comprises a second support 921, a second lead screw 922, a second motor 923, a second damping pad 924, and a collapse strip 925. The second support 921 is fixedly connected with the column shell 11, the second lead screw 922 is rotatably connected with the second support 921, and the second motor 923 is configured to drive the second lead screw 922 to rotate. The steering column 1 is connected with a second sliding block, and the second sliding block is matched with the second lead screw 922. When the second lead screw 922 rotates, the first sliding block moves along the length direction of the second lead screw 922, so that the steering column 1 is elongated or shortened. A part of the collapse strip 925 is clamped in the second support 921, and the other part is connected with the steering column 1. The second damping pad 924 is fixed at both ends of the second lead screw 922, and functions to limit the second sliding block and reduce vibration and noise.

[0221] Optionally, the length adjusting range of the steering column 1 is 150mm~300mm.

[0222] Thus, the length adjusting range of the steering column 1 is large, and the steering wheel hiding function can be realized, which is beneficial to improve the user experience.

[0223] Optionally, the steer-by-wire steering column 100 adopts a small torque motor (1.0 Nm ~3.0Nm), and a small reduction ratio worm gear reduction mechanism (reduction ratio is 8:1~16:1). The overall size of the steer-by-wire steering column 100 is smaller and the structure is more compact, so that the occupied space of the steer-by-wire steering column 100 can be further reduced, and more space can be provided for the cabin of the vehicle.

[0224] The embodiment of the present disclosure also provides a steer-by-wire system.

[0225] As shown in Figure 34 The steer-by-wire system of the embodiment of the present disclosure comprises a steer-by-wire machine 300 and a steer-by-wire column 100, the steer-by-wire machine 300 is connected with the steer-by-wire column 100 to receive signals of the steer-by-wire column 100. The steer-by-wire column 100 is the steer-by-wire column 100 described in any of the above embodiments.

[0226] As shown in Figure 34 The steer-by-wire system further comprises a steering wheel 200, the steering wheel 200 is connected with one end of the steering column 1 away from the feel simulator 2. The steer-by-wire machine 300 is further used to receive signals of a vehicle domain controller 500, and to push the wheels 400 to steer according to the received signals.

[0227] Since the steer-by-wire column 100 of the embodiment of the present disclosure has the advantages of low cost, etc., the steer-by-wire system of the embodiment of the present disclosure has the advantages of low cost, etc.

[0228] The embodiment of the present disclosure also provides a vehicle.

[0229] The vehicle of the embodiment of the present disclosure comprises the steer-by-wire system described in the above embodiments.

[0230] Since the steer-by-wire system has the advantages of low cost, etc., the vehicle of the embodiment of the present disclosure has the advantages of low cost, etc.

[0231] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present disclosure.

[0232] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0233] In the present disclosure, unless specifically defined otherwise, the terms "mount", "connected", "connecting", "fixed", and the like, should be construed broadly and can be understood as, for example, fixedly connected, or detachably connected, or integrated; can be mechanically connected, or electrically connected, or communicatively connected; can be directly connected, or indirectly connected via an intermediate medium; can be an internal connection between two elements, or an interaction relationship between two elements, unless specifically defined otherwise. The specific meanings of the above terms in the present disclosure can be understood by those of ordinary skill in the art according to the specific circumstances.

[0234] In the present disclosure, unless specifically defined otherwise, a first feature "on" or "under" a second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate medium. Moreover, the first feature "above", "over", and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in horizontal height than the second feature. The first feature "under", "below", and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in horizontal height than the second feature.

[0235] In the present disclosure, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present specification and the features of different embodiments or examples can be combined and combined by those of ordinary skill in the art without contradiction.

[0236] Although the embodiments of the present disclosure have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure, and changes, modifications, replacements and variations of the above embodiments made by those of ordinary skill in the art are within the scope of protection of the present disclosure.

Claims

1. A steer-by-wire column, characterized by, Comprising: a steering column comprising a column housing and a column shaft rotatably arranged within the column housing; and a feel simulator comprising a simulator housing and a simulator output shaft rotatably arranged within the simulator housing; wherein the simulator housing is detachably connected with the column housing, and the simulator output shaft is detachably connected with the column shaft; the steer-by-wire steering column further comprises a transition housing, the simulator housing and the column housing are both detachably connected with the transition housing, so that the simulator housing is detachably connected with the column housing; the steer-by-wire steering column comprises a first mounting bracket and a second mounting bracket, the first mounting bracket is connected with the column housing, and the first mounting bracket has a first mounting portion for connecting with a vehicle body or an instrument panel beam; the second mounting bracket has a first connecting portion and a second connecting portion, and the second mounting bracket has a second mounting portion for rotatably connecting with the vehicle body or the instrument panel beam; wherein the first connecting portion is detachably connected with the column housing, and / or the second connecting portion is detachably connected with the simulator housing. One of the simulator housing and the column housing is provided with a first connecting flange, the transition housing is provided with a second connecting flange, and the second connecting flange is detachably connected with the first connecting flange; 2. The steer-by-wire column according to claim 1, characterized in that the other of the simulator housing and the column housing is provided with a third connecting flange, the transition housing is provided with a fourth connecting flange, and the fourth connecting flange is detachably connected with the third connecting flange. The first connecting flange is provided with a plurality of first connecting holes, the second connecting flange is provided with a plurality of second connecting holes, and the plurality of second connecting holes correspond one-to-one with the plurality of first connecting holes, so that a first fastener passes through the corresponding second connecting hole and first connecting hole; 3. The steer-by-wire column according to claim 2, wherein, the third connecting flange is provided with a plurality of third connecting holes, the fourth connecting flange is provided with a plurality of fourth connecting holes, and the plurality of fourth connecting holes correspond one-to-one with the plurality of third connecting holes, so that a second fastener passes through the corresponding fourth connecting hole and third connecting hole. The first connecting flange comprises a plurality of first connecting lugs, each first connecting lug is provided with at least one first connecting hole; and / or 4. The steer-by-wire column of claim 3, wherein, The third connecting flange comprises a plurality of third connecting lugs, each third connecting lug is provided with at least one third connecting hole; and / or The transition housing is cylindrical, and the second connecting flange and the fourth connecting flange are arranged along the length direction of the transition housing. The second connecting flange comprises a plurality of second connecting lugs, each second connecting lug is provided with at least one second connecting hole; 5. The steer-by-wire column of claim 3, wherein, The fourth connecting flange comprises a plurality of fourth connecting lugs, each fourth connecting lug is provided with at least one fourth connecting hole. The second connecting lugs and the fourth connecting lugs are arranged in a circumferential direction of the transition housing.

6. The steer-by-wire column of claim 5, wherein, ​ 7. A steer-by-wire column according to any one of claims 2-6, characterized in that, The transition housing has a rotating shaft hole, one of the pipe column rotating shaft and the simulator output shaft passes through the rotating shaft hole, and the other of the pipe column rotating shaft and the simulator output shaft is detachably connected.

8. The steer-by-wire column according to any one of claims 1-6, wherein, One of the simulator output shaft and the pipe column rotating shaft is provided with a socket, the other of the simulator output shaft and the pipe column rotating shaft is provided with a shaft, the shaft is inserted into the socket, and the outer periphery of the shaft is matched with the hole wall of the socket.

9. The steer-by-wire column of claim 8, wherein, The outer periphery of the shaft is matched with the hole wall of the socket.

10. The steer-by-wire column of claim 9, wherein, The shaft is prismatic, and the outer periphery of the socket is prismatic, so that the outer periphery of the shaft is matched with the hole wall of the socket; and / or The outer periphery of the shaft is formed with an outer groove, the hole wall of the socket is formed with an inner protrusion, and the inner protrusion is arranged in the outer groove, so that the outer periphery of the shaft is matched with the hole wall of the socket; and / or The outer periphery of the shaft is formed with an outer protrusion, the hole wall of the socket is formed with an inner groove, and the inner groove is arranged in the outer protrusion, so that the outer periphery of the shaft is matched with the hole wall of the socket.

11. The steer-by-wire column of claim 8, wherein, The simulator output shaft and the pipe column rotating shaft are detachably connected through a connecting piece; and / or The simulator output shaft and the pipe column rotating shaft are coaxially arranged, and the center line of the socket is coincident with the axis of the pipe column rotating shaft; and / or A rotating shaft damping piece is arranged between the outer periphery of the shaft and the hole wall of the socket.

12. The steer-by-wire column of any one of claims 1-6, wherein, The simulator housing and the simulator output shaft are provided with a limiting device, the limiting device comprises: A first stopper is arranged on the simulator housing; A second stopper is arranged on the simulator output shaft; and A first limiting piece is capable of rotating about a rotating axis relative to the simulator output shaft, the first limiting piece comprises a first rotating disc, a first protrusion and a second protrusion, and the first protrusion and the second protrusion are respectively arranged on the axial two sides of the first rotating disc; When the simulator output shaft rotates a first preset angle, the second stopper abuts against the first protrusion, so that the simulator output shaft pushes the first limiting piece to rotate synchronously; when the simulator output shaft rotates a second preset angle, the second protrusion directly or indirectly abuts against the first stopper, so that the simulator output shaft and the first limiting piece stop rotating.

13. The steer-by-wire column of claim 12, wherein, The first limiting piece further comprises a limiting rod, the limiting rod has a first limiting section and a second limiting section, the limiting rod is inserted into the first rotating disc, and the first limiting section and the second limiting section are respectively arranged on the axial two sides of the first rotating disc, the first limiting section forms the first protrusion, and the second limiting section forms the second protrusion.

14. The steer-by-wire column of claim 13, wherein, The first limiting piece further comprises a first damping sleeve and a second damping sleeve, the first damping sleeve is sleeved on the first limiting section, and the second damping sleeve is sleeved on the second limiting section.

15. The steer-by-wire column of claim 1, wherein, The second mounting bracket comprises a first mounting ear, and the first mounting ear is provided with a first mounting hole; The simulator housing has a second mounting ear, and the second mounting ear is provided with a second fixing hole; The second mounting ear is provided with a second fixing hole. The second fixing hole is aligned with the first mounting hole for the connecting cylinder to pass through, the first mounting lug forms the second connecting part, and the connecting cylinder forms the second mounting part.

16. The steer-by-wire column of any one of claims 1-6, wherein, The steer-by-wire column further comprises an angle adjusting unit connected with the steering column to adjust the inclination angle of the steering column; and / or The steer-by-wire column further comprises a length adjusting unit connected with the steering column to adjust the length of the steering column, and the length adjusting range of the steering column is 150mm-300mm.

17. A steer-by-wire system characterized by, Comprise: A steer-by-wire column according to any one of claims 1-16; And A steer-by-wire machine connected with the steer-by-wire column to receive the signal of the steer-by-wire column.

18. A vehicle characterized by comprising: A steer-by-wire system comprising the steer-by-wire column according to claim 17. A steer-by-wire system comprising the steer-by-wire column according to claim 17.

Images