Torque feedback device and vehicle

Abstract

The utility model discloses a torque feedback device and a vehicle, the torque feedback device includes: pressure lever, transmission piece, elastic piece and torsion bar mechanism, pressure lever is used for connecting with brake pedal, transmission piece selectively with pressure lever transmission cooperation, elastic piece is provided between pressure lever and transmission piece, torsion bar mechanism selectively with transmission piece transmission cooperation, and torsion bar mechanism is provided with the transmission piece transmission cooperation. The pressing rod drives the torsion bar mechanism to rotate through the transmission piece. A brake pedal is connected with a pressing rod, a transmission part is in transmission fit with the pressing rod, and a torsion bar mechanism is in transmission fit with the transmission part, so that a three-section torque gradient can be realized, namely a first section of torque of the pressing rod and the transmission part, a second section of torque of the pressing rod and the transmission part through an elastic part, and a third section of torque of the transmission part and the torsion bar mechanism; therefore, the adjustability and the accuracy of torque feedback can be improved, the braking experience of a driver can be improved, and the comfort and the safety of a vehicle can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a torque feedback device and a vehicle. Background Art

[0002] At present, electronic power steering systems and electronic mechanical braking systems are gradually installed in vehicles. The pedals mainly use the damping feeling to achieve torque feedback to the driver. The torque feedback will affect the driver's braking experience, thereby affecting the comfort and safety of the vehicle.

[0003] In related technologies, the damping feeling in the pedal is achieved through rubber, but the volume of the rubber changes after being squeezed, which causes the pressure-stroke curve to be nonlinear, thereby affecting the adjustability and accuracy of the torque feedback, and further affecting the driver's braking experience of obtaining torque feedback. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a torque feedback device that can improve the adjustability and accuracy of torque feedback, thereby improving the driver's braking experience and further enhancing the comfort and safety of the vehicle.

[0005] The utility model further provides a vehicle.

[0006] According to the torque feedback device of the present invention, it includes: a pressure rod, a transmission member, an elastic member and a torsion bar mechanism, the pressure rod is used to be connected to the brake pedal, the transmission member selectively cooperates with the pressure rod in transmission, the elastic member is arranged between the pressure rod and the transmission member, and the torsion bar mechanism selectively cooperates with the transmission member in transmission, so that the pressure rod drives the torsion bar mechanism to rotate through the transmission member.

[0007] According to the torque feedback device of the present invention, by connecting the brake pedal with the pressure rod, the transmission member and the pressure rod transmission cooperation, and the torsion bar mechanism and the transmission member transmission cooperation, a three-stage torque gradient can be achieved, namely the first stage torque between the pressure rod and the transmission member, the second stage torque between the pressure rod through the elastic member and the transmission member, and the third stage torque between the transmission member and the torsion bar mechanism, thereby improving the adjustability and accuracy of the torque feedback, thereby improving the driver's braking experience, and improving the comfort and safety of the vehicle.

[0008] In some examples of the present invention, the transmission member is formed with a mounting groove, the inner wall of the mounting groove is provided with a curved sliding groove, the pressure rod is provided in the mounting groove and selectively cooperates with the transmission member through the curved sliding groove.

[0009] In some examples of the present invention, a rolling element is provided on the periphery of the pressure rod, and the rolling element selectively slides with the curved sliding groove.

[0010] In some examples of the present invention, a linear slide groove is provided on the inner wall of the mounting groove, the linear slide groove is connected to the end of the curved slide groove away from the torsion bar mechanism, and the length direction of the linear slide groove is parallel to the central axis of the transmission member.

[0011] In some examples of the present invention, the transmission member is provided with a first transmission part and a first limiting part; the torsion bar mechanism includes: a first torsion bar and a second torsion bar, a second transmission part is provided at one end of the first torsion bar, the first transmission part and the second transmission part are matched for transmission, the second torsion bar is sleeved on the first torsion bar, and the second torsion bar is provided with a second limiting part. After the first limiting part rotates to a preset position, the first limiting part and the second limiting part are limited and matched to make the first torsion bar and the second torsion bar rotate synchronously.

[0012] In some examples of the present invention, the transmission member is formed with a mating groove, the first transmission part is arranged on the inner wall of the mating groove and is constructed as an inner gear ring; one end of the first torsion bar is arranged in the mating groove, the second transmission part is arranged on the outer wall of one end of the first torsion bar and is constructed as an outer gear ring, and the inner gear ring and the outer gear ring are meshed.

[0013] In some examples of the present invention, the torque feedback device further includes: an adjusting mechanism, wherein the adjusting mechanism cooperates with the second limiting portion to adjust an initial position of the second limiting portion relative to the first limiting portion.

[0014] In some examples of the present invention, the adjustment mechanism includes: a driving member and an actuator, the actuator is in transmission cooperation with the driving member, the actuator is constructed with an output gear, the second limiting portion is constructed as a rack, and the output gear is meshed with the rack.

[0015] In some examples of the present invention, the torque feedback device also includes: a sleeve, a first bearing and a second bearing, the pressure rod, the transmission member and the torsion bar mechanism are arranged in the sleeve, the first bearing is arranged between the sleeve and the transmission member, and the second bearing is arranged between the sleeve and the torsion bar mechanism.

[0016] The vehicle according to the present invention includes: the torque feedback device described above.

[0017] Compared with the existing technology, the utility model adopts a method of connecting the brake pedal with the pressure rod, the transmission part and the pressure rod, and the torsion bar mechanism and the transmission part. In this way, a three-stage torque gradient can be achieved, namely the first stage torque between the pressure rod and the transmission part, the second stage torque between the pressure rod through the elastic part and the transmission part, and the third stage torque between the transmission part and the torsion bar mechanism, thereby improving the adjustability and accuracy of the torque feedback, thereby improving the driver's braking experience, and improving the comfort and safety of the vehicle.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 1 is a schematic structural diagram of a torque feedback device according to an embodiment of the present utility model;

[0021] Figure 2 It is a partial structural diagram of a torque feedback device according to an embodiment of the present utility model;

[0022] Figure 3 yes Figure 2 A magnified view of middle A;

[0023] Figure 4 is a partial perspective view of a torque feedback device according to an embodiment of the present utility model;

[0024] Figure 5 It is a structural diagram of the pressure rod;

[0025] Figure 6 1 is a schematic diagram of the first angle structure of the transmission member;

[0026] Figure 7 2 is a schematic diagram of the second angle structure of the transmission member;

[0027] Figure 8 is a schematic structural diagram of the first torsion bar;

[0028] Figure 9 It is a schematic diagram of three-stage torque feedback.

[0029] Reference numerals:

[0030] 100. Torque feedback device;

[0031] 10. Pressure rod; 11. Rolling member; 20. Transmission member; 21. Curved slide; 22. Straight slide; 23. First transmission part; 24. First limiting part; 30. Elastic member; 40. Torsion bar mechanism; 41. First torsion bar; 42. Second torsion bar; 43. Second transmission part; 44. Second limiting part; 50. Adjustment mechanism; 60. Sleeve; 70. Brake pedal. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0033] Reference below Figures 1-9 A torque feedback device 100 according to an embodiment of the present invention is described. The torque feedback device 100 is applied in a vehicle.

[0034] like Figure 1-Figure 7 As shown, according to the torque feedback device 100 of the present invention, it includes: a pressure rod 10, a transmission member 20, an elastic member 30 and a torsion bar mechanism 40. The pressure rod 10 is used to be connected to the brake pedal 70, the transmission member 20 selectively cooperates with the pressure rod 10 in transmission, the elastic member 30 is arranged between the pressure rod 10 and the transmission member 20, and the torsion bar mechanism 40 selectively cooperates with the transmission member 20 in transmission, so that the pressure rod 10 drives the torsion bar mechanism 40 to rotate through the transmission member 20.

[0035] It can be understood that the pressure rod 10, the transmission member 20, the elastic member 30 and the torsion bar mechanism 40 are assembled into a torque feedback device 100. The pressure rod 10 is connected to the brake pedal 70. When the driver steps on the brake pedal 70, the pressure rod 10 can be driven to move in the up and down directions. During the downward movement of the pressure rod 10, the pressure rod 10 and the transmission member 20 selectively transmit and cooperate, so that the force of the brake pedal 70 can be transmitted to the transmission member 20 through the pressure rod 10, and then the pressure rod 10 and the transmission member 20 can form a first torque. The elastic member 30 is located between the pressure rod 10 and the transmission member 20, when the pressure rod 10 moves downward to a certain distance, the pressure rod 10 begins to squeeze the elastic member 30, and the elastic member 30 provides elastic force to the pressure rod 10. The transmission member 20 rotates under the pressure of the pressure rod 10, so that the pressure rod 10 and the transmission member 20 can form a second torque. The torsion bar mechanism 40 is located at one end of the transmission member 20 away from the pressure rod 10. When the transmission member 20 starts to rotate, the rotational force of the transmission member 20 drives the torsion bar mechanism 40, so that the torsion bar mechanism 40 can rotate, and then the transmission member 20 and the torsion bar mechanism 40 can form a third torque.

[0036] For example, the elastic member 30 is a coil spring, so that the elastic member 30 can provide a coil elastic force to the pressure rod 10 and the transmission member 20, thereby facilitating the force of the brake pedal 70 to be transmitted to the pressure rod 10 and the transmission member 20, thereby forming a first torque and a second torque.

[0037] Moreover, if Figure 9 As shown, when the driver steps on the brake pedal 70 and the pressure rod 10 moves downward in a straight line, the elastic member 30 can provide a small linear force feedback to the pressure rod 10, thus forming a first section of torque feedback. The driver continues to step on the brake pedal 70, the pressure rod 10 continues to move downward, and the transmission member 20 rotates under the pressure of the pressure rod 10, thus forming a second section of torque feedback. The driver continues to step on the brake pedal 70, and the transmission member 20 drives the torsion bar mechanism 40 to rotate, thereby generating a larger linear force. The linear force is used to limit the end of the brake pedal 70, thus forming a third section of torque feedback. The three-section torque feedback has the characteristics of strong linearity, high accuracy, and good design, and is not easy to age, thereby extending the service life of the torque feedback device 100 and ensuring the performance of the torque feedback device 100. The structure of the torque feedback device 100 is simple, which facilitates the arrangement of peripheral components and further facilitates better adjustment of the force on the brake pedal 70.

[0038] Therefore, by connecting the brake pedal 70 with the pressure rod 10, the transmission member 20 with the pressure rod 10, and the torsion bar mechanism 40 with the transmission member 20, a three-stage torque gradient can be achieved, namely the first stage torque between the pressure rod 10 and the transmission member 20, the second stage torque between the pressure rod 10 through the elastic member 30 and the transmission member 20, and the third stage torque between the transmission member 20 and the torsion bar mechanism 40, thereby improving the adjustability and accuracy of the torque feedback, thereby improving the driver's braking experience, and improving the comfort and safety of the vehicle.

[0039] Among them, Figure 4 and Figure 6 As shown, the transmission member 20 is formed with a mounting groove, the inner wall of the mounting groove is provided with a curved sliding groove 21 , the pressure rod 10 is provided in the mounting groove and selectively cooperates with the transmission member 20 through the curved sliding groove 21 .

[0040] It can be understood that the inner wall of the transmission member 20 forms a mounting groove, and a part of the mounting groove forms a curved slide groove 21. The curved slide groove 21 extends spirally along the length direction of the transmission member 20, so that the curved slide groove 21 and the elastic member 30 correspond to each other. The pressure rod 10 is located at the upper end of the transmission member 20, so that the driver can continue to step on the brake pedal 70, the brake pedal 70 squeezes the pressure rod 10, and the pressure rod 10 moves downward. When the pressure rod 10 and the curved slide groove 21 slide together, the downward force of the pressure rod 10 drives the transmission member 20 to rotate, so that the pressure rod 10 can drive the transmission member 20 to rotate, and then the pressure rod 10 and the transmission member 20 can form a second torque.

[0041] In addition, if Figure 4-Figure 6 As shown, the outer periphery of the pressure rod 10 is provided with a rolling element 11, which selectively slides with the curved chute 21. In other words, at least two groups of rolling elements 11 are provided on the outer periphery of the pressure rod 10, each group of rolling elements 11 comprising at least two components. The rolling elements 11 slide with the curved chute 21. This allows the driver to continue to step on the brake pedal 70, which compresses the pressure rod 10, causing the pressure rod 10 to move downward. When the pressure rod 10 slides with the curved chute 21, the downward force of the pressure rod 10 drives the transmission member 20 to rotate, thereby causing the pressure rod 10 to drive the transmission member 20 to rotate, thereby generating a second torque between the pressure rod 10 and the transmission member 20. For example, the rolling element 11 can be a ball or a protrusion. The ball has a low friction force with the curved chute 21, which can make the transmission between the pressure rod 10 and the transmission member 20 faster. The protrusion has a high friction force with the curved chute 21, which can make the transmission between the pressure rod 10 and the transmission member 20 more precise. The specific setting depends on the actual situation.

[0042] In addition, if Figure 4 and Figure 6 As shown, a linear slide groove 22 is provided on the inner wall of the mounting groove. The linear slide groove 22 is connected to the end of the curved slide groove 21 away from the torsion bar mechanism 40 . The length direction of the linear slide groove 22 is parallel to the central axis of the transmission member 20 .

[0043] The cam 22 is located above the front end of the wheel 21 and is in contact with the front end of the wheel 22. The cam 22 is located above the front end of the wheel 21 and is in contact with the front end of the wheel 22. The cam 22 is located above the front end of the wheel 21 and is in contact with the front end of the wheel 22.

[0044] In addition, if Figure 2-Figure 8 As shown, the transmission member 20 is provided with a first transmission part 23 and a first limiting part 24; the torsion bar mechanism 40 includes: a first torsion bar 41 and a second torsion bar 42, a second transmission part 43 is provided at one end of the first torsion bar 41, the first transmission part 23 and the second transmission part 43 are matched for transmission, the second torsion bar 42 is sleeved on the first torsion bar 41, and the second torsion bar 42 is provided with a second limiting part 44. After the first limiting part 24 rotates to a preset position, the first limiting part 24 and the second limiting part 44 are limited and matched, so that the first torsion bar 41 and the second torsion bar 42 can rotate synchronously.

[0045] That is to say, the inner wall of the transmission member 20 is provided with a first transmission part 23, and the upper end of the first torsion bar 41 is provided with a second transmission part 43. The first transmission part 23 and the second transmission part 43 cooperate in transmission, so that the rotation of the transmission member 20 can drive the first torsion bar 41 to rotate, and the second torsion bar 42 is sleeved on the first torsion bar 41. The first torsion bar 41 then drives the second torsion bar 42 to rotate, thereby realizing the third torque. The outer periphery of the second torsion bar 42 is provided with a second limiting part 44. The first limiting part 24 and the second limiting part 44 are arranged relative to each other. After the first limiting part 24 rotates to the specified position, the first limiting part The position portion 24 and the second position limiting portion 44 are limited in cooperation, so that the transmission member 20 can drive the first torsion bar 41 to rotate, and the first torsion bar 41 and the second torsion bar 42 rotate synchronously, so that a third section of torque feedback can be formed. The three-section torque feedback has the characteristics of strong linearity, high accuracy, and good design, and is not easy to age, thereby extending the service life of the torque feedback device 100 and ensuring the performance of the torque feedback device 100. The torque feedback device 100 has a simple structure, which is convenient for the arrangement of peripheral components, and further facilitates better adjustment of the force on the brake pedal 70.

[0046] For example, multiple racks are set on the periphery of the transmission member 20, and multiple racks are also set on the periphery of the second torsion bar 42. The racks correspond to each other, and the number of racks on the transmission member 20 is greater than the number of racks on the second torsion bar 42. A limit pin is set on the rack of the transmission member 20, and the limit pin is located on one side of the rack on the second torsion bar 42, so that the rotation angle of the transmission member 20 and the timing of the limit cooperation between the first limit part 24 and the second limit part 44 can be set, thereby improving the linearity and accuracy of the torque feedback device 100.

[0047] Alternatively, as Figure 4 、 Figure 7 and Figure 8 As shown, the transmission member 20 is formed with a mating groove, the first transmission part 23 is arranged on the inner wall of the mating groove and is constructed as an inner gear ring; one end of the first torsion bar 41 is arranged in the mating groove, and the second transmission part 43 is arranged on the outer wall of one end of the first torsion bar 41 and is constructed as an outer gear ring, and the inner gear ring and the outer gear ring are meshed.

[0048] It can be understood that an inner ring gear is provided on the inner wall of the transmission member 20, and an outer ring gear is provided on the upper end of the first torsion bar 41. The inner ring gear and the outer ring gear are engaged with each other, so that the force transmission between the transmission member 20 and the first torsion bar 41 can be more rapid and stable. In this way, the rotation of the transmission member 20 can drive the first torsion bar 41 to rotate, and the second torsion bar 42 is mounted on the first torsion bar 41, and the first torsion bar 41 drives the second torsion bar 42 to rotate, so that the third torque can be achieved.

[0049] In addition, if Figure 2 and Figure 3 As shown, the torque feedback device 100 further includes an adjusting mechanism 50 , which cooperates with the second limiting portion 44 to adjust the initial position of the second limiting portion 44 relative to the first limiting portion 24 .

[0050] That is to say, the adjustment mechanism 50 is cooperated with the second limit part 44. Such a setting can determine the limit distance between the first limit part 24 and the second limit part 44 by adjusting the position of the second limit part 44 by the adjustment mechanism 50, and also facilitates the return between the first limit part 24 and the second limit part 44. When the driver steps on the brake pedal 70 and the pressure rod 10 moves downward in a straight line, the elastic member 30 can provide a small linear force feedback to the pressure rod 10, which can form a first section of torque feedback. The driver continues to step on the brake pedal 70 and the pressure rod 10 continues to move downward. At this time, the pressure rod 10 squeezes the elastic member 30 while continuing to move itself. The transmission member 20 rotates under the pressure of the pressure rod 10, which can form a second section of torque feedback. The driver continues to step on the brake pedal 70, and the transmission member 20 drives the torsion bar mechanism 40 to rotate, thereby generating a larger linear force. The linear force is used to limit the end of the brake pedal 70, which can form a third section of torque feedback.

[0051] For example, the adjustment mechanism 50 is one of motor drive, gear rack drive and hydraulic drive, so that the torsion angle of the torsion bar mechanism 40 can be changed according to the preset driving style of the vehicle, and the adjustment mechanism 50 is connected to the vehicle's electronic control system, so that the vehicle can adjust the feedback force of the brake pedal 70 in real time during operation, thereby increasing the driver's driving confidence and sense of driving safety.

[0052] The adjusting mechanism 50 includes a driving member and an actuator, the actuator and the driving member are in transmission cooperation, the actuator is configured with an output gear, the second limiting portion 44 is configured as a rack, and the output gear is meshed with the rack.

[0053] It can be understood that the driving member and the actuator constitute the main body of the adjustment mechanism 50, the actuator is the output gear, the second limiting part 44 is the rack, and the output gear is engaged with the rack, so that the driving force of the driving member can be transmitted to the second limiting part 44 through the actuator, so that the second limiting part 44 can be rotated, thereby facilitating the torque feedback device 100 to feed back the linear force to the brake pedal 70.

[0054] In addition, Figure 1 As shown, the torque feedback device 100 also includes: a sleeve 60, a first bearing and a second bearing, the pressure rod 10, the transmission member 20 and the torsion bar mechanism 40 are arranged in the sleeve 60, the first bearing is arranged between the sleeve 60 and the transmission member 20, and the second bearing is arranged between the sleeve 60 and the torsion bar mechanism 40.

[0055] That is to say, the pressure rod 10, the transmission member 20 and the torsion bar mechanism 40 are located in the sleeve 60, so that the sleeve 60 can protect the pressure rod 10, the transmission member 20 and the torsion bar mechanism 40, thereby ensuring the movement of the pressure rod 10, the transmission member 20 and the torsion bar mechanism 40, and extending the service life of the pressure rod 10, the transmission member 20 and the torsion bar mechanism 40. In addition, a first bearing is arranged between the sleeve 60 and the transmission member 20, and a second bearing is arranged between the sleeve 60 and the torsion bar mechanism 40. When the pressure rod 10, the transmission member 20 and the torsion bar mechanism 40 start to move, the first bearing and the second bearing can reduce the friction between the sleeve 60 and the transmission member 20, as well as the friction between the sleeve 60 and the torsion bar mechanism 40, thereby improving the adjustability and accuracy of the torque feedback, and then improving the driver's braking experience, as well as improving the comfort and safety of the vehicle.

[0056] A vehicle according to the present invention includes the torque feedback device 100 of the above embodiment. By connecting the brake pedal 70 to the pressure rod 10, the transmission member 20 and the pressure rod 10 in transmission cooperation, and the torsion bar mechanism 40 and the transmission member 20 in transmission cooperation, a three-stage torque gradient can be achieved, namely, a first stage of torque between the pressure rod 10 and the transmission member 20, a second stage of torque between the pressure rod 10 and the transmission member 20 through the elastic member 30, and a third stage of torque between the transmission member 20 and the torsion bar mechanism 40. This improves the adjustability and accuracy of torque feedback, thereby improving the driver's braking experience and enhancing the comfort and safety of the vehicle.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0058] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In the description of the present invention, "plurality" means two or more. In the description of the present invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may also include the first and second features not being in direct contact but being in contact via another feature between them. In the description of the present invention, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0059] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0060] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A torque feedback device (100), characterized in that: include: A pressure rod (10), the pressure rod (10) being used to connect to a brake pedal (70); A transmission member (20), the transmission member (20) selectively engaging with the pressure rod (10); an elastic member (30), the elastic member (30) being arranged between the pressure rod (10) and the transmission member (20); A torsion bar mechanism (40) is selectively coupled with the transmission member (20) for transmission, so that the pressure rod (10) drives the torsion bar mechanism (40) to rotate via the transmission member (20).

2. The torque feedback device (100) according to claim 1, characterized in that: The transmission member (20) is formed with a mounting groove, and the inner wall of the mounting groove is provided with a curved sliding groove (21). The pressure rod (10) is provided in the mounting groove and selectively cooperates with the transmission member (20) through the curved sliding groove (21).

3. The torque feedback device (100) according to claim 2, characterized in that: A rolling element (11) is provided on the outer periphery of the pressure rod (10), and the rolling element (11) selectively slides with the curved sliding groove (21).

4. The torque feedback device (100) according to claim 3, characterized in that: A linear slide groove (22) is provided on the inner wall of the mounting groove. The linear slide groove (22) is connected to an end of the curved slide groove (21) away from the torsion bar mechanism (40). The length direction of the linear slide groove (22) is parallel to the central axis of the transmission member (20).

5. The torque feedback device (100) according to claim 1, characterized in that: The transmission member (20) is provided with a first transmission portion (23) and a first limiting portion (24); The torsion bar mechanism (40) comprises: a first torsion bar (41), wherein a second transmission portion (43) is provided at one end of the first torsion bar (41), and the first transmission portion (23) and the second transmission portion (43) are in transmission cooperation; A second torsion bar (42) is sleeved on the first torsion bar (41), and the second torsion bar (42) is provided with a second limiting portion (44). After the first limiting portion (24) rotates to a preset position, the first limiting portion (24) and the second limiting portion (44) are limitedly matched to enable the first torsion bar (41) and the second torsion bar (42) to rotate synchronously.

6. The torque feedback device (100) according to claim 5, characterized in that: The transmission member (20) is formed with a matching groove, and the first transmission part (23) is arranged on the inner wall of the matching groove and is configured as an inner gear ring; One end of the first torsion bar (41) is arranged in the matching groove, and the second transmission part (43) is arranged on the outer wall of one end of the first torsion bar (41) and is configured as an outer gear ring, and the inner gear ring and the outer gear ring are meshed.

7. The torque feedback device (100) according to claim 5, characterized in that: Also includes: An adjusting mechanism (50), wherein the adjusting mechanism (50) cooperates with the second limiting portion (44) to adjust an initial position of the second limiting portion (44) relative to the first limiting portion (24).

8. The torque feedback device (100) according to claim 7, characterized in that: The regulating mechanism (50) comprises: driving parts; An actuator is in transmission cooperation with the driving member, the actuator is configured with an output gear, the second limiting portion (44) is configured as a rack, and the output gear is meshed with the rack.

9. The torque feedback device (100) according to any one of claims 1 to 8, characterized in that: Also includes: A sleeve (60), wherein the pressure rod (10), the transmission member (20) and the torsion bar mechanism (40) are arranged in the sleeve (60); a first bearing, the first bearing being arranged between the sleeve (60) and the transmission member (20); A second bearing is provided between the sleeve (60) and the torsion bar mechanism (40).

10. A vehicle, characterized in that: include: The torque feedback device (100) according to any one of claims 1 to 9.

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