A haptics simulator assembly, steer-by-wire system, and vehicle

Abstract

The application relates to the technical field of vehicle accessories, and provides a hand feeling simulator assembly, a steer-by-wire system and a vehicle. The hand feeling simulator assembly comprises a steering column, a planetary gear assembly and a driving assembly. The planetary gear assembly is drivingly connected to one end of the steering column. The driving assembly is drivingly connected to the planetary gear assembly. The steering column, the planetary gear assembly and the driving assembly are coaxially arranged. The hand feeling simulator assembly, the steer-by-wire system and the vehicle provided by the application have a smaller occupied space.

Description

Technical Field

[0001] This application relates to the field of vehicle parts technology, and more particularly to a hand-feel simulator assembly, a steer-by-wire system, and a vehicle. Background Technology

[0002] In a vehicle's steer-by-wire system, a feel simulator can be set up to simulate a realistic feel based on information such as the steering wheel's rotation angle and vehicle speed. In related technologies, the feel simulator uses a worm gear structure, which increases the space occupied by the entire steering mechanism and raises the difficulty of its layout on the vehicle. Utility Model Content

[0003] In view of this, embodiments of this application aim to provide a space-saving hand-feel simulator assembly, a steer-by-wire system, and a vehicle.

[0004] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0005] One embodiment of this application discloses a hand-feel simulator assembly, including:

[0006] Steering column;

[0007] A planetary gear assembly is driven to one end of the steering column;

[0008] A drive assembly is driven and connected to the planetary gear assembly, and the steering column, the planetary gear assembly, and the drive assembly are coaxially arranged.

[0009] In one embodiment, the output shaft of the drive assembly is configured as the sun gear shaft of the planetary gear assembly.

[0010] In one embodiment, the drive assembly includes a motor and a motor housing, the motor being disposed within the motor housing, and the planetary gear assembly includes:

[0011] The gear ring is connected to the motor housing;

[0012] Multiple planetary gears are meshed and connected within the gear ring;

[0013] The output shaft of the motor is connected to the sun gear, which meshes with the plurality of planet gears.

[0014] Planetary carrier, which connects the steering column and the plurality of planetary gears.

[0015] In one embodiment, one of the motor housing and the gear ring has a first slot, and the other of the motor housing and the gear ring has a first protrusion. The first slot is used to limit the first protrusion along the circumferential sidewall of the steering column.

[0016] In one embodiment, one of the drive assembly housing and the gear ring of the drive assembly is provided with at least one limiting platform, and the other of the drive assembly housing and the gear ring is provided with at least one limiting groove. When the limiting platform is located in the limiting groove, the limiting groove abuts against the limiting platform along the two side walls of the steering column in the circumferential direction.

[0017] In one embodiment, the planetary carrier has a connecting port and a plurality of through ports communicating with the mounting cavity. The plurality of through ports are spaced apart circumferentially along the steering column on the planetary carrier. Parts of the plurality of planetary gears are disposed in the mounting cavity, and other parts of the plurality of planetary gears pass through the corresponding through ports and mesh with the ring gear. The output shaft of the motor is inserted into the mounting cavity through the connecting port and meshes with the plurality of planetary gears.

[0018] In one embodiment, the mounting cavity has a mounting hole formed in the cavity wall along the axial direction of the steering column, and the axle of the planetary gear passes through the mounting hole.

[0019] In one embodiment, one of the steering column and the planetary carrier has a second slot, and the other of the steering column and the planetary carrier has a second protrusion that transitions into the second slot; and / or,

[0020] The steering column has a first fixing hole, the planetary carrier has a second fixing hole, and the planetary gear assembly includes a fastener that passes through the first fixing hole and the second fixing hole.

[0021] In one embodiment, the steering column includes a steering tube and a steering shaft. The steering shaft is disposed inside the steering tube, one end of the steering shaft is connected to a steering wheel, and the other end of the steering shaft is drivenly connected to the planetary gear assembly. The steering tube and the planetary gear assembly are connected by a bearing.

[0022] In one embodiment, the steering shaft includes a first shaft, a second shaft, and a spline. The first shaft is driven to the planetary gear assembly, one end of the second shaft is connected to the steering wheel, and the other end of the second shaft is driven to the end of the first shaft relative to the planetary gear assembly via the spline.

[0023] Another aspect of this application discloses a steer-by-wire system, including the feel simulator assembly in any of the above embodiments.

[0024] In another aspect, this application discloses a vehicle including the hand-feel simulator assembly or the steer-by-wire system in any of the above embodiments.

[0025] This application discloses a hand-feel simulator assembly, a steer-by-wire system, and a vehicle. By drivingly connecting a planetary gear assembly to one end of the steering column, and driving the drive assembly to the planetary gear assembly, the steering column, planetary gear assembly, and drive assembly are coaxially arranged. On one hand, the combination of the planetary gear assembly and drive assembly, using a "direct drive" approach, eliminates the need for relative movement between the drive assembly and planetary gear assembly along the axial direction of the steering column 1. This reduces the axial space occupied by the hand-feel simulator assembly, allowing for flexible installation in limited spaces and reducing its space requirements, thus enhancing its adaptability. On the other hand… By setting up planetary gear assemblies and drive assemblies, the output torque of the drive assemblies can be adjusted to flexibly change the reduction ratio of the drive assemblies, adapting to different application requirements. Furthermore, the reduction and torque amplification capabilities of the planetary gear assemblies allow for the selection of drive assemblies with lower torque, enabling the use of high torque requirements while reducing overall weight and manufacturing costs, resulting in good economic efficiency. Moreover, the coaxial arrangement of the steering column, planetary gear assemblies, and drive assemblies reduces the number of related transmission parts, further minimizing space occupation and reducing the overall weight and manufacturing cost of the steering simulator assembly, thus improving assembly efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a hand-feel simulator assembly provided in an embodiment of this application;

[0027] Figure 2 for Figure 1 An explosion diagram;

[0028] Figure 3 for Figure 2 A partial schematic diagram;

[0029] Figure 4 for Figure 3 A structural schematic diagram from another perspective;

[0030] Figure 5 for Figure 1 A cross-sectional view along a direction perpendicular to its axis;

[0031] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0032] Figure 7 This is a schematic diagram of the structure of the planetary gear assembly and the output shaft of the motor provided in another embodiment of this application;

[0033] Figure 8 for Figure 7 A structural schematic diagram from another perspective;

[0034] Figure 9 An exploded view of a planetary gear assembly, an output shaft of a motor, and a first shaft provided in yet another embodiment of this application;

[0035] Figure 10 Figure 8 An explosion diagram.

[0036] Explanation of reference numerals in the attached figures

[0037] 100. Hands-on simulator assembly; 1. Steering column; 1a. Second protrusion; 1b. First mounting hole; 11. Steering tube; 111. Outer steering tube; 111a. Column housing; 111b. Mounting slot; 112. Inner steering tube; 12. Steering shaft; 121. First shaft; 122. Second shaft; 123. Spline; 2. Planetary gear assembly; 21. Gear ring; 21a. First protrusion; 21b. Limiting slot; 22. Planetary carrier; 22a. Mounting cavity; 22b. 22c, Through-hole; 22d, Mounting hole; 221, First frame; 222, Connecting part; 223, Second frame; 223a, Second slot; 223b, Second fixing hole; 23, Planetary gear; 23a, Axle of planetary gear; 24, Fastener; 25, Sun gear; 3, Drive assembly; 31, Output shaft; 32, Motor housing; 33, Motor; 32a, First slot; 32b, First insertion port; 32c, Limiting platform; A, Gasket; B, Bearing. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0039] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. The terms "first," "second," etc., used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly including at least one feature. In the description of the embodiments of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In a steer-by-wire system, there is no mechanical connection between the steering wheel and the steering actuators, such as the front wheel steering gear. Information is transmitted entirely via electrical signals, achieving mechanical decoupling between the steering wheel and the wheels. When the driver operates the steering wheel, the feel simulator uses a series of control algorithms to simulate a realistic feel based on information such as the steering wheel angle and vehicle speed. Because there is no direct mechanical connection, the steering ratio can be freely adjusted, the feel can be customized for a more refined and sophisticated look, and it provides greater comfort by isolating high-frequency road vibrations. During intelligent driving, the steering wheel can be silent or retracted, delivering a revolutionary cockpit experience.

[0041] In related technologies, the worm gear structure used in the hand feel simulator has the drive component arranged along the axial direction of the steering column. The drive component is connected to the worm gear, and the end of the steering column is connected to the turbine. The drive component drives the worm gear to rotate, and the worm gear drives the turbine gear to rotate. In turn, the torque of the drive component is transmitted to the steering wheel by reducing speed and increasing torque. However, since the transmission of the worm gear needs to be arranged along the axial direction of the steering column, this will greatly increase its axial space occupation and increase the difficulty of its arrangement on the whole vehicle.

[0042] In view of this, one embodiment of this application provides a hand-feel simulator assembly 100, please refer to... Figures 1 to 10 The steering simulator assembly 100 includes a steering column 1, a planetary gear assembly 2, and a drive assembly 3. The planetary gear assembly 2 is driven to one end of the steering column 1. The drive assembly 3 is driven to the planetary gear assembly 2, and the steering column 1, planetary gear assembly 2, and drive assembly 3 are coaxially arranged.

[0043] The planetary gear assembly 2 can be driven to one end of the steering column 1 along its axial direction, and the drive assembly 3 can be driven to the end of the planetary gear assembly 2 away from the steering column 1 along its axial direction. That is to say, along the axial direction of the steering column 1, the sequence is steering column 1, planetary gear assembly 2 and drive assembly 3.

[0044] The drive assembly 3 receives the control command and generates the corresponding rotation angle and torque. The output shaft of the drive assembly rotates parametrically under the drive of the drive assembly 3 and transmits torque, thereby driving the planetary gear assembly 2 to decelerate and rotate. Then, the torque is transmitted to the steering wheel through the steering column 1 to achieve the effect of simulating hand force.

[0045] The hand-feel simulator assembly 100 provided in this application drives the planetary gear assembly 2 to one end of the steering column 1, and drives the drive assembly 3 to the planetary gear assembly 2. The steering column 1, planetary gear assembly 2, and drive assembly 3 are coaxially arranged. On the one hand, by combining the planetary gear assembly 2 and the drive assembly 3, a "direct drive"-like method is adopted, so that the transmission between the drive assembly 3 and the planetary gear assembly 2 does not require relative movement along the axial direction of the steering column 1. This reduces the space occupied by the hand-feel simulator assembly 100 along the axial direction, allowing for flexible installation in limited spaces, reducing its installation space requirements, and making it highly adaptable. On the other hand, by setting... The planetary gear assembly 2 and the drive assembly 3 can be adjusted by regulating the output torque of the output shaft of the drive assembly 3 to achieve flexible adjustment of the reduction ratio of the drive assembly 3, so as to adapt to different application requirements. On the other hand, the reduction and torque increase capability of the planetary gear assembly 2 allows the selection of a drive assembly 3 with a smaller torque, which can meet the high torque requirements while reducing the overall weight and manufacturing cost, resulting in good economic efficiency. Furthermore, the coaxial arrangement of the steering column 1, the planetary gear assembly 2 and the drive assembly 3 can reduce the number of related transmission parts. This not only further reduces the space occupation, but also further reduces the overall weight and manufacturing cost of the hand feel simulator assembly 100, and improves assembly efficiency.

[0046] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 5 The output shaft of drive assembly 3 is configured as the sun gear shaft of planetary gear assembly 2.

[0047] In this way, by using the output shaft of the drive component 3 as the sun gear shaft of the planetary gear component 2, the structure of the hand feel simulator assembly 100 is simplified. This not only further reduces the overall weight, manufacturing cost and space occupation of the hand feel simulator assembly 100, but also reduces the assembly difficulty.

[0048] In one embodiment, please refer to Figures 6 to 10 The drive assembly 3 includes a motor 33 and a motor housing 32, with the motor 33 housed within the motor housing 33. The planetary gear assembly 2 includes a ring gear 21, a sun gear 25, a planet carrier 22, and multiple planet gears 23. The ring gear 21 is connected to the motor housing 32. The multiple planet gears 23 are meshed within the ring gear 21. The sun gear 25 is meshed between the multiple planet gears 23. The output shaft 31 of the motor 33 is connected to the sun gear 25. The planet carrier 22 connects the steering column 1 and the multiple planet gears 23.

[0049] Here, the gear ring 21, connected to the motor housing 32, remains stationary during transmission. Multiple planetary gears 23 are meshed within the gear ring 21, and a sun gear 25 is meshed between the planetary gears 23. The output shaft 31 of the motor 33 is connected to the sun gear 25, allowing the planetary gears 23 to rotate circumferentially within the gear ring 21 under the drive of the output shaft 31. The planet carrier 22, by connecting the planetary gears 23, converts the circumferential rotation of the planetary gears 23 into its own rotation, thereby driving the steering column 1 connected to the planet carrier 22. Thus, by configuring the gear ring 21, sun gear 25, planet carrier 22, and multiple planetary gears 23, the output shaft 31 of the motor 33 can be reduced in speed and increased in torque. Furthermore, the reduction ratio of the drive assembly 3 can be adjusted by changing the number of teeth on the output shaft 31, sun gear 25, planetary gears 23, and gear ring 21 to adapt to different application requirements.

[0050] In one embodiment, please refer to Figure 3 and Figure 4 One of the motor housing 32 and the gear ring 21 has a first slot 32a, and the other of the motor housing 32 and the gear ring 21 has a first protrusion 21a. The first slot 32a is used to limit the first protrusion 21a along the circumference of the steering column 1.

[0051] For example, the motor housing 32 has a first slot 32a and a socket along the axial direction of the steering column 1, and the gear ring 21 has a first protrusion 21a along the axial direction of the steering column 1. The first protrusion 21a is inserted into the first slot 32a through the socket. The first protrusion 21a and the first slot 32a can be an interference fit or a transition fit.

[0052] In this way, by setting the first slot 32a and the first protrusion 21a, when the first protrusion 21a is located in the first slot 32a, the first slot 32a can limit the first protrusion 21a along the circumferential sidewall of the steering column 1, and can limit the first protrusion 21a to a certain extent along the bottom wall of the slot 32a, thereby reducing the circumferential and axial movement of the gear ring 21 during transmission and improving the working stability of the planetary gear assembly 2.

[0053] In one embodiment, please refer to Figure 3 and Figure 4 One of the motor housing 32 and the gear ring 21 has at least one limiting platform 32c, and the other of the motor housing 32 and the gear ring 21 has at least one limiting groove 21b. When the limiting platform 32c is located in the limiting groove 21b, the limiting groove 21b is limited and abuts against the limiting platform 32c along the two side walls of the steering column 1 in the circumferential direction.

[0054] For example, a limiting platform 32c can be formed in the first slot 32a, and a limiting groove 21b can be formed on the outer peripheral surface of the gear ring 21, with the limiting platform 32c and the limiting groove 21b engaging in a limiting fit.

[0055] Here, through the limiting platform 32c and the limiting groove 21b, when the limiting platform 32c is located in the limiting groove 21b, the limiting groove 21b is limited and abutted against the limiting platform 32c along the two side walls of the steering column 1 in the circumferential direction. In this way, the rotation of the gear ring 21 under the drive of the planetary gear 23 can be reduced, and the working stability of the planetary gear assembly 2 can be improved.

[0056] In one embodiment, please refer to Figure 3 and Figure 4 One of the motor housing 32 and the gear ring 21 has a first slot 32a, and the other of the motor housing 32 and the gear ring 21 has a first protrusion 21a. When the first protrusion 21a is located in the first slot 32a, the first slot 32a is used to limit the first protrusion 21a along the circumference of the steering column 1. One of the motor housing 32 and the gear ring 21 has at least one limiting platform 32c, and the other of the motor housing 32 and the gear ring 21 has at least one limiting groove 21b. When the limiting platform 32c is located in the limiting groove 21b, the limiting groove 21b is limited and abuts against the limiting platform 32c along the two side walls along the circumference of the steering column 1.

[0057] Here, by setting the first slot 32a, the first protrusion 21a, the limiting platform 32c and the limiting groove 21b, the movement and rotation of the gear ring 21 along the circumference and axial direction can be reduced, further improving its working stability.

[0058] In one embodiment, please refer to Figure 9 The planetary carrier 22 has a connecting port 22b that communicates with the mounting cavity 22a and a plurality of through ports 22c. The plurality of through ports 22c are spaced apart along the circumference of the steering column 1 on the planetary carrier 22. Parts of the plurality of planetary gears 23 are disposed in the mounting cavity 22a, and the other parts of the plurality of planetary gears 23 pass through the corresponding through ports 22c and are engaged with the gear ring 21. The output shaft 31 of the drive assembly 3 is inserted into the mounting cavity 22a through the connecting port 22b and is engaged with the plurality of planetary gears 23.

[0059] For example, the planetary carrier 22 may include a first carrier 221, three connecting parts 222, and a second carrier 223. The first carrier 221 has a communication port 22b, and the second carrier 223 is connected to the steering column 1. The first carrier 221 and the second carrier 223 are spaced apart along the axial direction of the steering column 1 to define a mounting cavity 22a. The three connecting parts 222 may be spaced 180° apart along the circumferential direction of the steering column 1 to connect the first carrier 221 and the second carrier 223. Three through ports 22c may be defined between two adjacent connecting parts 222. Three planetary gears 23 are spaced 180° apart along the circumferential direction in the mounting cavity 22a, and part of them pass through the corresponding through ports 22c in the mounting cavity 22a to mesh with the gear ring 21. The output shaft 31 of the drive assembly 3 passes through the communication port 22b in the mounting cavity 22a to mesh with the multiple planetary gears 23.

[0060] For example, the first frame 221 can be in the shape of a circular plate, and the second frame 223 can be in the shape of a disc.

[0061] Thus, by providing the mounting cavity 22a inside the planetary carrier 22, not only can the meshing parts of the planetary gear 23 and the output shaft 31 of the drive assembly 3 be protected, reducing interference and damage from other components and improving their service life and operational stability, but also a mounting position can be provided for the planetary gear 23, making it easier to reduce the size of the installation. By providing the through-hole 22c on the planetary carrier 22, it is easier for the planetary gear 23 to mesh with the gear ring 21.

[0062] In one embodiment, please refer to Figure 6 and Figure 9 The mounting cavity 22a has a mounting hole 22d formed in the cavity wall along the axial direction of the steering column 1, and the axle 23a of the planetary gear passes through the mounting hole 22d.

[0063] For example, both the first frame 221 and the second frame 223 have mounting holes 22d. The axles at both ends of the planetary gear 23 pass through one mounting hole 22d.

[0064] In this way, by forming a mounting hole 22d in the circumferential cavity wall of the mounting cavity 22a along the steering column 1, and passing the axle 23a of the planetary gear through the mounting hole 22d, the planetary gear 23 can be constrained along the axial direction of the steering column 1 and fixed on the planet carrier 22 to improve its working stability.

[0065] For example, in one embodiment, a shim A can be provided between the planetary gear 23 and the first frame 221 and the second frame 223. This can not only further constrain and limit the planetary gear 23 along the axial direction of the steering column 1, but also reduce the possibility of scratching between the planetary gear 23 and the first frame 221 and the second frame 223.

[0066] In one embodiment, please refer to Figures 6 to 10 One of the steering column 1 and the planetary carrier 22 is provided with a second slot 223a, and the other of the steering column 1 and the planetary carrier 22 is provided with a second protrusion 1a, which is in transition fit with the second slot 223a.

[0067] For example, a second slot 223a may be formed on the side of the second frame 223 away from the first frame 221 along the axial direction of the steering column 1, and a second protrusion 1a may be formed on the steering column 1. The shape of the second protrusion 1a is adapted to the shape of the second slot 223a, such as the shape of the second slot 223a being oval, and the shape of the second protrusion 1a also being oval.

[0068] In this way, by transitioning between the second protrusion 1a and the second slot 223a, the relative rotation between the steering column 1 and the planetary carrier 22 can be restricted to a certain extent, so that the rotation of the planetary carrier 22 directly drives the steering column 1, thereby realizing the deceleration and torque increase from the drive assembly 3 to the steering column 1.

[0069] In one embodiment, please refer to Figure 6 , Figure 8 , Figure 9 and Figure 10 The steering column 1 has a first fixing hole 1b, the planetary carrier 22 has a second fixing hole 223b, and the planetary gear assembly 2 includes a fastener 24, which passes through the first fixing hole 1b and the second fixing hole 223b.

[0070] For example, fastener 24 may be a bolt. The second frame 223 is formed with a second fixing hole 223b.

[0071] Here, by setting fasteners 24 to pass through the first fixing hole 1b and the second fixing hole 223b, the connection strength between the planetary carrier 22 and the steering column 1 is improved, and the relative rotation between the two is reduced.

[0072] In one embodiment, please refer to Figure 6 , Figure 8 , Figure 9 and Figure 10 One of the steering column 1 and the planetary carrier 22 has a second slot 223a, and the other of the steering column 1 and the planetary carrier 22 has a second protrusion 1a. The second protrusion 1a is transitionally engaged with the second slot 223a. The steering column 1 has a first fixing hole 1b, and the planetary carrier 22 has a second fixing hole 223b. The planetary gear assembly 2 includes a fastener 24, which passes through the first fixing hole 1b and the second fixing hole 223b.

[0073] For example, the second frame 223 may have a second slot 223a formed on the side of the steering column 1 away from the first frame 221 along the axial direction, the steering column 1 may have a second protrusion 1a, the second slot 223a may have a second fixing hole 223b formed therein, and the second protrusion 1a may have a first fixing hole 1b formed therein.

[0074] This further restricts the relative rotation between the planet carrier 22 and the planetary gear 23.

[0075] In one embodiment, please refer to Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 8 The steering column 1 includes a steering tube 11 and a steering shaft 12. The steering shaft 12 is disposed inside the steering tube 11. One end of the steering shaft 12 is connected to the steering wheel, and the other end of the steering shaft 12 is driven to the planetary gear assembly 2. The steering tube 11 and the planetary gear assembly 2 are connected by a bearing B.

[0076] For example, the steering tube 11 includes an outer steering tube 111 and an inner steering tube 112. The inner steering tube 112 is telescopically disposed within the outer steering tube 111 along the axial direction of the steering column 1, and the steering shaft 12 is disposed within the inner steering tube 112. One end of the steering shaft 12 is connected to the steering wheel, and the other end of the steering shaft 12 can be connected to the second frame 223 via a second slot 223a, a second protrusion 1a, and a fastener 24. A column housing 111a is formed at the end of the outer steering tube 111 away from the steering wheel along the axial direction of the steering column 1. The column housing 111a opens toward the motor housing 32, and the two together enclose a receiving cavity, in which the planetary gear assembly 2 can be disposed. A mounting groove 111b is formed inside the column housing 111a, and a portion of the bearing B can be fitted between the planetary carrier 22 and the gear ring 21. The other end of the bearing B is disposed within the mounting groove 111b.

[0077] Here, the steering shaft 12 drives the planetary gear assembly 2 to rotate, and the steering tube 11 and the planetary gear assembly 2 are connected by bearing B, which can reduce the situation where the steering tube 11 and the steering shaft 12 rotate synchronously.

[0078] As an example, in one embodiment, please refer to the figure. Figures 8 to 10 A shim A is provided between bearing B and mounting groove 111b. This not only reduces the axial movement of bearing B along the steering column 1, but also reduces the scraping between bearing B and the wall of mounting groove 111b.

[0079] For example, in one embodiment, bearing B can be a deep groove ball bearing B.

[0080] In one embodiment, please refer to Figure 5The steering shaft 12 includes a first shaft 121, a second shaft 122 and a spline 123. The first shaft 121 is driven to be connected to the planetary gear assembly 2. One end of the second shaft 122 is connected to the steering wheel, and the other end of the second shaft 122 is driven to be connected to the end of the first shaft 121 relative to the planetary gear assembly 2 via the spline 123.

[0081] For example, the first shaft 121 can be connected to the second frame 223 via the second slot 223a, the second protrusion 1a, and the fastener 24. The spline 123 includes an external spline 123 and an internal spline 123. One of the external spline 123 and the internal spline 123 can be disposed on the first shaft 121, and the other of the external spline 123 and the internal spline 123 can be disposed on the second shaft 122. The external spline 123 and the internal spline 123 are connected to the first shaft 121 and the second shaft 122 by a transition fit.

[0082] In this way, by setting splines 123, the transmission accuracy can be improved, so as to better transmit the torque of the drive component 3 to the steering wheel end and achieve the effect of simulating hand force.

[0083] Another aspect of this application provides a steer-by-wire system, including a hand feel simulator assembly 100 from any of the above embodiments.

[0084] The steer-by-wire system provided in this application, based on the advantages of the aforementioned feel simulator assembly 100, also features small footprint, light weight, and low manufacturing cost.

[0085] In another aspect, this application provides a vehicle including the steer-by-wire system or the steer-by-wire assembly described in the above embodiments.

[0086] For example, the vehicle can be a gasoline vehicle, a hybrid vehicle, a range-extended vehicle, or a pure electric vehicle, etc.

[0087] The vehicle provided in this application, based on the advantages of the aforementioned steer-by-wire system, features a large passenger space and a long driving range.

[0088] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. All modifications, equivalent substitutions, improvements, etc., within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A hand-feel simulator assembly, characterized in that, include: Steering column; A planetary gear assembly is driven to one end of the steering column; A drive assembly is driven and connected to the planetary gear assembly, and the steering column, the planetary gear assembly, and the drive assembly are coaxially arranged.

2. The hand-feel simulator assembly according to claim 1, characterized in that, The output shaft of the drive assembly is configured as the sun gear shaft of the planetary gear assembly.

3. The hand-feel simulator assembly according to claim 1 or 2, characterized in that, The drive assembly includes a motor and a motor housing, the motor being disposed within the motor housing; the planetary gear assembly includes: The gear ring is connected to the motor housing; Multiple planetary gears are meshed and connected within the gear ring; A sun gear is meshed between the planet gears, and the output shaft of the motor is connected to the sun gear. Planetary carrier, which connects the steering column and the plurality of planetary gears.

4. The hand-feel simulator assembly according to claim 3, characterized in that, One of the motor housing and the gear ring has a first slot, and the other of the motor housing and the gear ring has a first protrusion. The first slot limits the first protrusion along the circumference of the steering column.

5. The hand-feel simulator assembly according to claim 3, characterized in that, One of the motor housing and the gear ring has at least one limiting platform, and the other of the motor housing and the gear ring has at least one limiting groove. When the limiting platform is located in the limiting groove, the limiting groove abuts against the limiting platform along the two side walls of the steering column in the circumferential direction.

6. The hand-feel simulator assembly according to claim 3, characterized in that, The planetary carrier has a connecting port and a plurality of through ports that communicate with the mounting cavity. The plurality of through ports are spaced apart circumferentially along the steering column on the planetary carrier. Parts of the plurality of planetary gears are disposed in the mounting cavity, and other parts of the plurality of planetary gears pass through the corresponding through ports and mesh with the gear ring. The output shaft of the motor is inserted into the mounting cavity through the connecting port and meshes with the plurality of planetary gears.

7. The hand-feel simulator assembly according to claim 6, characterized in that, The mounting cavity has mounting holes formed in its cavity wall along the axial direction of the steering column, and the axle of the planetary gear passes through the mounting holes.

8. The hand-feel simulator assembly according to claim 3, characterized in that, One of the steering column and the planetary carrier has a second slot, and the other of the steering column and the planetary carrier has a second protrusion, the second protrusion transitionally engaging with the second slot; and / or, The steering column has a first fixing hole, the planetary carrier has a second fixing hole, and the planetary gear assembly includes a fastener that passes through the first fixing hole and the second fixing hole.

9. The hand-feel simulator assembly according to claim 1, characterized in that, The steering column includes a steering tube and a steering shaft. The steering shaft is disposed inside the steering tube. One end of the steering shaft is connected to the steering wheel, and the other end of the steering shaft is drivenly connected to the planetary gear assembly. The steering tube and the planetary gear assembly are connected by a bearing.

10. The hand-feel simulator assembly according to claim 9, characterized in that, The steering shaft includes a first shaft, a second shaft, and a spline. The first shaft is driven to the planetary gear assembly. One end of the second shaft is connected to the steering wheel, and the other end of the second shaft is driven to the end of the first shaft relative to the planetary gear assembly via the spline.

11. A steer-by-wire system, characterized in that, The haptic simulator assembly includes any one of claims 1 to 10.

12. A vehicle, characterized in that, Includes the hand-feel simulator assembly according to any one of claims 1 to 10 or the steer-by-wire system according to claim 11.

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