Clutch device, vehicle steering system having the same, and vehicle

Abstract

The present invention discloses a clutch device, a vehicle steering system and a vehicle having the same. The clutch device includes: a first transmission member and a second transmission member. The first transmission member is movable between an engaged position and a disengaged position. When the first transmission member is in the engaged position, it is engaged with the second transmission member and transmits torque. When the first transmission member is in the disengaged position, it is disengaged from the second transmission member and disconnects the transmission of torque. A driving mechanism, the driving mechanism includes a driving device and a driven member. The driven member is respectively in transmission connection with the driving device and the first transmission member. The driving device drives the driven member to move so as to drive the first transmission member to move between the engaged position and the disengaged position. The moving direction of the driven member is parallel to the moving direction of the first transmission member. According to the clutch device of the present invention, the transmission and disconnection of torque between the steering wheel and the wheels can be achieved. When playing a game, the rotation of the wheels can be avoided, the wear of the wheels can be reduced, the user experience can be improved, and the transmission efficiency and transmission accuracy are relatively high.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular, to a clutch device, a vehicle steering system and a vehicle having the same. Background Art

[0002] In related technologies, the vehicle steering system always transmits the steering torque and cannot disconnect the transmission of the steering torque, resulting in the wheels and the steering wheel always being linked. With the improvement of emerging functions such as in-vehicle multimedia functions and autonomous driving functions, the vehicle steering system can no longer match these emerging functions, resulting in a poor user experience. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, an object of the present invention is to provide a clutch device, which can achieve the transmission and disconnection of the steering torque, and has high transmission efficiency and reliability.

[0004] Another object of the present invention is to provide a vehicle steering system having the above clutch device.

[0005] Still another object of the present invention is to provide a vehicle having the above vehicle steering system.

[0006] The clutch device according to the first aspect embodiment of the present invention includes: a first transmission member and a second transmission member, the first transmission member being movable between a engaged position and a disengaged position, the first transmission member being engaged with the second transmission member and transmitting torque when in the engaged position, and the first transmission member being disengaged from the second transmission member and disconnecting the transmission of torque when in the disengaged position; a driving mechanism, the driving mechanism including a driving device and a driven member, the driven member being respectively in transmission connection with the driving device and the first transmission member, the driving device driving the driven member to move so as to drive the first transmission member to move between the engaged position and the disengaged position, and the moving direction of the driven member being parallel to the moving direction of the first transmission member.

[0007] According to the clutch device of the embodiment of the present invention, by driving the driven member to move by the driving device so as to drive the first transmission member to move between the engaged position and the disengaged position and the moving direction of the driven member being parallel to the moving direction of the first transmission member, when the clutch device is applied to a vehicle steering system, the transmission and disconnection of the torque between the steering wheel and the wheels can be effectively achieved. When playing games, the wheels can be prevented from rotating following the steering wheel, thereby reducing the wear of the wheels and improving the user experience. Moreover, the transmission efficiency and transmission accuracy between the driving device, the driven member and the first transmission member are high, and the bending moment action between the first transmission member and the driven member can be effectively avoided, thereby effectively improving the reliability of the clutch device.

[0008] According to some embodiments of the present invention, the central axis of the follower and the central axis of the first transmission member both extend along the moving direction of the follower. The first transmission member is relatively fixed to the follower in the axial direction of the follower, and the first transmission member and the follower are relatively rotatable.

[0009] According to some embodiments of the present invention, a bearing is provided between the first transmission member and the follower. The bearing includes an inner ring, an outer ring, and a plurality of rolling elements rollably disposed between the inner ring and the outer ring. The first transmission member is provided with a first shoulder and a first fastener spaced axially apart. The inner ring abuts between the first shoulder and the first fastener. The follower is provided with a second shoulder and a second fastener spaced axially apart. The outer ring abuts between the second shoulder and the second fastener to achieve relative fixation of the first transmission member and the follower in the axial direction of the follower and relative rotation in the circumferential direction.

[0010] According to some embodiments of the present invention, the clutch device further includes a steering shaft. The first transmission member is sleeved on the steering shaft. The first transmission member is relatively fixed to the steering shaft in the circumferential direction of the steering shaft, and the first transmission member is movable relative to the steering shaft between the engaged position and the disengaged position along the axial direction of the steering shaft.

[0011] According to some embodiments of the present invention, the follower is a lead screw. The driving device includes a driver and a transmission member. The transmission member is in transmission connection with the driver, and the inner peripheral surface of the transmission member has an internal thread that cooperates with the follower.

[0012] According to some embodiments of the present invention, the driver has an output shaft. The driving device further includes a driving member fixed on the output shaft, and the driving member cooperates with the transmission member to drive the transmission member to rotate.

[0013] According to some embodiments of the present invention, the driving member is a worm, and the transmission member includes a worm wheel meshing with the worm.

[0014] According to some embodiments of the present invention, the clutch device further includes a controller and a position detection component. The position detection component communicates with the controller. The position detection component is used to detect the position of the first transmission member and send the position signal of the first transmission member to the controller.

[0015] According to some embodiments of the present invention, the position detection assembly includes: a detection main body, which communicates with the controller; a detection device, which is arranged on the driven member, the detection device communicates with the detection main body, and the detection main body obtains the position of the first transmission member by detecting the position of the detection device and sends the position signal of the detection device to the controller.

[0016] According to some embodiments of the present invention, the detection main body is a sensor main body, and the detection device includes a magnetic steel sleeve and a detection magnetic steel arranged on the magnetic steel sleeve.

[0017] According to some embodiments of the present invention, the clutch device further includes: a locking device, which can be switched between a locked state and an unlocked state. When the locking device is in the locked state, the first transmission member is locked at the engaged position, and when the locking device is in the unlocked state, the locking of the first transmission member is released.

[0018] According to some embodiments of the present invention, the locking device includes a retractable locking core; the driven member has a stepped portion. When the locking device is in the locked state, the locking core is adapted to abut against the stepped portion to keep the first transmission member at the engaged position through the driven member, and when the locking device is in the unlocked state, the locking core retracts to separate from the stepped portion.

[0019] According to some embodiments of the present invention, at least one protrusion is provided on one of the first transmission member and the second transmission member, and at least one groove is formed on the other of the first transmission member and the second transmission member; when the first transmission member is at the engaged position, the protrusion fits into the groove, and when the first transmission member is at the separated position, the protrusion is disengaged from the groove.

[0020] A vehicle steering system according to an embodiment of the second aspect of the present invention includes a clutch device according to the above-mentioned first aspect embodiment of the present invention.

[0021] A vehicle according to an embodiment of the third aspect of the present invention includes a vehicle steering system according to the above-mentioned second aspect embodiment of the present invention.

[0022] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0024] Figure 1 Schematic three - dimensional structure diagram of a vehicle steering system according to an embodiment of the present invention;

[0025] Figure 2 Schematic three - dimensional structure diagram of a clutch device according to an embodiment of the present invention;

[0026] Figure 3 is Figure 2 Schematic three - dimensional structure diagram of the clutch device shown in [reference] from another angle;

[0027] Figure 4 Schematic structure diagram of a clutch device according to an embodiment of the present invention, wherein the first transmission member is in the engaged position;

[0028] Figure 5 Schematic structure diagram of a clutch device according to an embodiment of the present invention, wherein the first transmission member is in the disengaged position;

[0029] Figure 6 Schematic cross - sectional structure diagram of a clutch device according to an embodiment of the present invention;

[0030] Figure 7 Another schematic cross - sectional structure diagram of a clutch device according to an embodiment of the present invention;

[0031] Figure 8 Schematic partial cross - sectional structure diagram of a clutch device according to an embodiment of the present invention;

[0032] Figure 9 Another schematic partial cross - sectional structure diagram of a clutch device according to an embodiment of the present invention;

[0033] Figure 10 Schematic cross - sectional structure diagram of an angular position limiting mechanism according to an embodiment of the present invention.

[0034] Reference numerals:

[0035] 100: Clutch device;

[0036] 1: First transmission member; 11: Protrusion; 12: First fastener; 2: Second transmission member; 21: Groove;

[0037] 3: Driving mechanism; 31: Driving device; 311: Driver; 3111: Mounting screw; 312: Transmission member;

[0038] 3121: Second bearing; 3122: First backlash - eliminating retaining ring; 3123: Second backlash - eliminating retaining ring; 3124: Worm gear;

[0039] 313: Driving member; 3131: Plug; 32: Driven member; 321: Step portion; 3212: Second fastener;

[0040] 4: Bearing; 5: Steering shaft; 51: Third bearing; 511: Third backlash eliminator ring; 512: Fourth backlash eliminator ring;

[0041] 6: Ball sliding assembly; 7: Position detection assembly; 71: Detection body; 711: Sensor fixing screw;

[0042] 72: Detection device; 721: Magnet steel sleeve; 722: Detection magnet steel;

[0043] 8: Locking device; 81: Locking core; 82: Locking body; 9: Oil seal;

[0044] 200: Vehicle steering system;

[0045] 201: Corner limit mechanism; 202: Turntable; 2021: Fitting groove; 203: Limiting part; 2031: Guide shaft;

[0046] 204: Fixing part; 2041: Guide groove; 2042: Fastening screw; 205: Elastic part; 206: Housing;

[0047] 2061: Upper housing; 2062: Lower housing; 2063: First sealing ring; 2064: First bolt assembly;

[0048] 2065: First bearing; 207: Dust cover; 208: Support part; 209: Steering gear;

[0049] 2091: Steering gear housing; 2092: Third sealing ring; 2093: Second bolt assembly;

[0050] 2094: Needle roller bearing; 210: Steering wheel; 211: Steering column. Detailed implementation mode

[0051] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the drawings are exemplary. The embodiments of the present invention will be described in detail below.

[0052] Reference will be made below to Figures 1-10 Describe the clutch device 100 according to the embodiment of the first aspect of the present invention. The clutch device 100 can be applied to the vehicle steering system 200. In the following description of the present application, the clutch device 100 is taken as an example of being applied to the vehicle steering system 200 for illustration.

[0053] As Figures 4-7 shown, the clutch device 100 according to the embodiment of the first aspect of the present invention includes a first transmission member 1, a second transmission member 2 and a driving mechanism 3.

[0054] The first transmission member 1 is movable between a engaged position and a disengaged position. When the first transmission member 1 is in the engaged position, it engages with the second transmission member 2 and transmits torque. When the first transmission member 1 is in the disengaged position, it disengages from the second transmission member 2 and disconnects the torque transmission. With such an arrangement, when the first transmission member 1 is in the engaged position, synchronous rotation of the first transmission member 1 and the second transmission member 2 can be achieved. When the clutch device 100 is applied to the vehicle steering system 200, the vehicle steering system 200 can normally transmit the torque of the driver's operation of the steering wheel 210 to the steering gear 209. When the first transmission member 1 is in the disengaged position, independent rotation of the first transmission member 1 and the second transmission member 2 can be achieved. At this time, the connection between the steering wheel 210 and the steering gear 209 is disconnected. When the steering wheel 210 is rotated, the steering gear 209 will not be driven to move with the steering wheel 210. However, the steering wheel 210 can still drive components such as the combination switch, clock spring, and angle sensor to operate normally. In this state, the steering wheel 210 can be used as a simulator for vehicle driving and can output the steering wheel 210 rotation angle signal to in-vehicle devices or external devices. For example, at this time, the steering wheel 210 can be used as a controller for in-vehicle multimedia to play racing games, etc., which can avoid the accelerated wear of the tires caused by the rotation of the wheels following, and reduce potential safety hazards. Moreover, at this time, the rotation of the steering gear 209 will not drive the steering wheel 210 to move with it either. For example, when the vehicle is in a remote control driving or autonomous driving state, the steering gear 209 controls the steering of the whole vehicle, and the steering wheel 210 can not rotate with the steering gear 209 to ensure the safety and riding comfort of the driver.

[0055] The driving mechanism 3 includes a driving device 31 and a driven member 32. The driven member 32 is respectively in transmission connection with the driving device 31 and the first transmission member 1. The driving device 31 drives the driven member 32 to move so as to drive the first transmission member 1 to move between the engaged position and the disengaged position. Thus, by driving the driven member 32 to move by the driving device 31, the movement of the first transmission member 1 can be achieved, and thereby the transmission and disconnection of the steering torque between the first transmission member 1 and the second transmission member 2 can be realized.

[0056] Engage Figure 7, the moving direction of the follower 32 is parallel to the moving direction of the first transmission member 1. In this way, when the driving device 31 drives the follower 32 to drive the first transmission member 1 to move, the direction of the force exerted by the first transmission member 1 on the follower 32 is parallel to the moving direction of the follower 32, thereby effectively avoiding the bending moment effect of the first transmission member 1 on the follower 32, and enabling the cooperation between the driving device 31 and the follower 32 to be more precise and reliable. Moreover, the direction of the force exerted by the follower 32 on the first transmission member 1 can be parallel to the moving direction of the first transmission member 1, thereby avoiding the bending moment effect of the follower 32 on the first transmission member 1, ensuring that the first follower 32 can move along its moving direction, and further effectively improving the smoothness of the movement of the first transmission member 1 and avoiding the situation of jamming when the first transmission member 1 moves. In addition, through the above settings, the transmission path between the driving device 31, the follower 32, and the first transmission member 1 is shorter, and the transmission can be more accurate, thereby effectively improving the transmission efficiency between the driving device 31, the follower 32, and the first transmission member 1.

[0057] For the clutch device 100 according to an embodiment of the present invention, by driving the follower 32 to move by the driving device 31 to drive the first transmission member 1 to move between the engaged position and the disengaged position and the central axis of the follower 32 and the central axis of the first transmission member 1 are parallel, when the clutch device 100 is applied to the vehicle steering system 200, the torque transmission and disconnection between the steering wheel 210 and the wheels can be effectively achieved, and when playing a game, the wheels can be prevented from rotating following the steering wheel 210, thereby reducing the wear of the wheels and enhancing the user experience. Moreover, the transmission efficiency and transmission accuracy between the driving device 31, the follower 32, and the first transmission member 1 are relatively high, and the bending moment effect between the first transmission member 1 and the follower 32 can be effectively avoided, thereby effectively improving the reliability of the clutch device 100.

[0058] In some embodiments of the present invention, referring to Figure 7 , the central axes of both the follower 32 and the first transmission member 1 extend along the moving direction of the follower 32, the first transmission member 1 is relatively fixed axially with respect to the follower 32, and the first transmission member 1 and the follower 32 are relatively rotatable. For example, in Figure 7In the example, the follower 32 and the first transmission member 1 can be coaxially arranged, and the first transmission member 1 and the follower 32 can rotate relative to each other in the circumferential direction of the follower 32. With such an arrangement, on the one hand, it can effectively avoid the acting force between the follower 32 and the first transmission member 1 deviating from the axis direction of the two, ensuring that the follower 32 only generates an acting force along the central axis direction of the first follower 32 on the first transmission member 1, and the first transmission member 1 also only generates an acting force along the central axis direction of the first follower 32 on the follower 32, thereby further improving the transmission efficiency and accuracy between the follower 32 and the first transmission member 1; on the other hand, it can effectively reduce the occupied space of the follower 32 and the first transmission member 1 in the radial direction of the first transmission member 1, making the volume of the clutch device 100 smaller, which is beneficial to the spatial layout of other structural components of the vehicle steering system 200. In addition, when the driving device 31 drives the follower 32 to move, the follower 32 can drive the first transmission member 1 to move synchronously along the axial direction of the follower 32, and the rotation of one of the first transmission member 1 and the follower 32 can be not affected by the other, ensuring the reliability of torque transmission and disconnection.

[0059] In some alternative embodiments of the present invention, as Figure 7 shown, a bearing 4 is provided between the first transmission member 1 and the follower 32. The bearing 4 includes an inner ring, an outer ring, and a plurality of rolling elements that are rollably arranged between the inner ring and the outer ring. The first transmission member 1 is provided with a first shoulder and a first fastener 12 that are axially spaced apart, the inner ring is abutted between the first shoulder and the first fastener 12, the follower 32 is provided with a second shoulder and a second fastener 3212 that are axially spaced apart, and the outer ring is abutted between the second shoulder and the second fastener 3212 to achieve relative fixation in the axial direction of the follower 32 and relative rotation in the circumferential direction between the first transmission member 1 and the follower 32.

[0060] For example, in Figure 7In the example, a first fastener 12 such as an outer locking nut is fixed to one end of the first transmission member 1, and a second fastener 3212 such as an inner locking nut is fixed to one end of the driven member 32 away from the first fastener 12. One end of the outer ring of the bearing 4 stops at the second shaft shoulder, and the other end of the outer ring of the bearing 4 stops at the second fastener 3212 to achieve axial positioning of the outer ring of the bearing 4. One end of the inner ring of the bearing 4 stops at the first shaft shoulder, and the other end of the inner ring of the bearing 4 stops at the first fastener 12 to achieve axial positioning of the inner ring of the bearing 4. Therefore, by providing the above-mentioned bearing 4, the installation and positioning of the first transmission member 1 and the driven member 32 can be effectively achieved, and the first transmission member 1 and the driven member 32 can be well supported, and a large axial load can be borne, and the coaxiality of the first transmission member 1 and the driven member 32 can be ensured, and while achieving the relative fixation of the first transmission member 1 and the driven member 32 in the axial direction and the relative rotation in the circumferential direction, the service life of the first transmission member 1 and the driven member 32 can be effectively extended. The bearing 4 may be a double-row angular contact bearing, but is not limited thereto.

[0061] In a further embodiment of the present invention, Figures 6-9 As shown, the clutch device 100 further includes: a steering shaft 5, a first transmission member 1 sleeved on the steering shaft 5, the first transmission member 1 and the steering shaft 5 are relatively fixed in the circumferential direction of the steering shaft 5, and the first transmission member 1 is movable between a coupling position and a separation position relative to the steering shaft 5 along the axial direction of the steering shaft 5. For example, the upper end of the steering shaft 5 can be connected to the steering wheel 210 in a transmission manner, and the second transmission member 2 can be arranged on the steering gear 209. When the vehicle is driving normally on the road, the first transmission member 1 is located in the coupling position. When the driver controls the steering wheel 210 to turn, the steering torque applied by the driver on the steering wheel 210 can be transmitted to the steering shaft 5. Since the first transmission member 1 and the steering shaft 5 are relatively fixed in the circumferential direction of the steering shaft 5, the steering shaft 5 can transmit the steering torque to the first transmission member 1, and finally transmit it from the first transmission member 1 to the second transmission member 2, and finally to the wheels, so as to realize the steering of the vehicle.

[0062] Thus, by making the first transmission member 1 relatively fixed to the steering shaft 5 in the circumferential direction, the steering shaft 5 can transmit the steering torque of the steering wheel 210 to the first transmission member 1, so that the steering of the vehicle can be effectively realized when the first transmission member 1 is in the engaged position. By making the first transmission member 1 relatively movable in the axial direction with the steering shaft 5, the first transmission member 1 can avoid affecting the steering shaft 5 when moving between the separated position and the engaged position. Moreover, by making the first transmission member 1 movable between the engaged position and the separated position along the axial direction of the steering shaft 5, the steering shaft 5 can be prevented from moving while realizing the transmission and separation of the torque. Since the axial dimension of the first transmission member 1 can be relatively small, the arrangement of the first transmission member 1 can be more convenient, and the movement of the first transmission member 1 can be more flexible and reliable.

[0063] In some embodiments of the present invention, with reference to Figures 6-9 , a ball sliding assembly 6 is provided between the first transmission member 1 and the steering shaft 5. The first transmission member 1 and the steering shaft 5 transmit torque through the ball sliding assembly 6, and the first transmission member 1 and the steering shaft 5 are relatively movable in the axial direction of the steering shaft 5 through the ball sliding assembly 6. For example, in the Figures 6-9 example, the ball sliding assembly 6 may include a ball sliding outer ring, a ball sliding inner ring, and rolling elements. Among them, the rolling elements are arranged between the ball sliding outer ring and the ball sliding inner ring. Among them, the ball sliding outer ring may be an integral structure with the first transmission member 1 to effectively reduce the sliding resistance and abnormal noise risk of the first driven member 32. The ball sliding inner ring may be an integral structure with the steering shaft 5 or fixedly connected to the steering shaft 5.

[0064] Thus, by providing the above-mentioned ball sliding assembly 6, while realizing the torque transmission and relative movement between the first transmission member 1 and the steering shaft 5, the gap between the first transmission member 1 and the steering shaft 5 can be eliminated, thereby avoiding the generation of noise due to vibration during the movement of the first transmission member 1 and making the movement of the first transmission member 1 more stable and reliable.

[0065] In some embodiments of the present invention, with reference to Figure 7 and in combination with Figure 2 and Figure 3 , the driven member 32 may be a lead screw. The driving device 31 includes a driver 311 and a transmission member 312. Among them, the transmission member 312 is in transmission connection with the driver 311, and the inner peripheral surface of the transmission member 312 has an internal thread that cooperates with the driven member 32. For example, the driver 311 can drive the transmission member 312 to perform a rotational motion. Since the transmission member 312 is in threaded cooperation with the driven member 32, when the transmission member 312 rotates, the driven member 32 can move along the axial direction of the transmission member 312, thereby driving the first transmission member 1 to move along its axial direction to realize the conversion of the rotational motion of the driver 311 into the linear motion of the first transmission member 1. Moreover, by controlling the rotation direction of the driver 311, the axial movement direction of the first transmission member 1 can be controlled, thereby effectively realizing the combination and separation of the first transmission member 1 and the second transmission member 2. Optionally, the driver 311 may be a motor. But it is not limited thereto.

[0066] In a further embodiment of the present invention, the driver 311, such as a motor, has an output shaft. The driving device 31 further includes a driving member 313, which is fixed on the output shaft, and the driving member 313 cooperates with the transmission member 312 to drive the transmission member 312 to rotate. Thus, by providing the above-mentioned driving member 313, the driving member 313 can effectively transmit the driving force of the driver 311, such as a motor, to the transmission member 312. Specifically, since the driving member 313 is fixed on the output shaft, when the driver 311, such as a motor, operates, the output shaft can drive the driving member 313 to rotate. Since the driving member 313 cooperates with the transmission member 312, the driving member 313 can drive the transmission member 312 to rotate, so that the driven member 32 can drive the first transmission member 1 to axially move to achieve the disconnection or transmission of torque.

[0067] Optionally, as Figure 4 , Figure 5 and Figure 7 shown, the driving member 313 can be a worm, and the transmission member 312 can include a worm wheel 3124 meshing with the worm. Thus, by meshing the worm wheel 3124 with the worm, on the one hand, the worm and the worm wheel 3124 can form a worm and worm wheel pair, and the transmission member 312 and the driven member 32 can form a screw pair, so as to ensure that the driving force of the driver 311 can be effectively transmitted to the driven member 32, the transmission is more stable and reliable, the noise of the clutch device 100 can be reduced, and the structures of the worm wheel 3124 and the worm are relatively compact, which can effectively reduce the occupied space of the clutch device 100.

[0068] Of course, the present invention is not limited thereto, and the transmission between the driving member 312 and the transmission member 312 can also adopt a lead screw and nut pair or a gear and rack pair, as long as the rotational motion of the driver 311, such as a motor, can be converted into the linear motion of the driven member 32.

[0069] In some alternative embodiments of the present invention, the lead angle of the worm is γ, where γ satisfies: 10° ≤ γ ≤ 20°. With such a setting, the worm and worm wheel mechanism can be a self-locking mechanism. After the driven member 32 drives the first transmission member 1 to move in place, the first transmission member 1 can be in a compressed state, and the connection relationship is more reliable. Further optionally, γ can further satisfy 14° ≤ γ ≤ 15°. But it is not limited thereto.

[0070] Of course, those skilled in the art can understand that the condition for self-locking of the worm and worm wheel transmission is also related to the friction coefficient between the worm and the worm wheel. Therefore, γ is not limited to 10° to 20°. For example, γ can also be greater than 20° or less than 10°, as long as the transmission between the worm and the worm wheel can achieve self-locking.

[0071] In some embodiments of the present invention, referring to Figure 8, the clutch device 100 further includes a controller and a position detection component 7. Among them, the position detection component 7 communicates with the controller. The position detection component 7 is used to detect the position of the first transmission member 1 and send the position signal of the first transmission member 1 to the controller. Thus, the position detection component 7 arranged in this way can feedback the position of the first transmission member 1 (such as the engaged position and the disengaged position) to the controller, so that it can be judged whether the steering wheel 210 transmits or disconnects the steering torque with the wheels through the position of the first transmission member 1, and then the working state of the entire vehicle steering system 200 can be obtained.

[0072] In some specific embodiments of the present invention, in combination with Figure 8 , the position detection component 7 includes a detection main body 71 and a detection device 72. Among them, the detection main body 71 communicates with the controller. The detection device 72 is arranged on the driven member 32. The detection device 72 communicates with the detection main body 71. The detection main body 71 obtains the position of the first transmission member 1 by detecting the position of the detection device 72 and sends the position signal of the detection device 72 to the controller. Thus, through the above setting, the detection main body 71 can indirectly obtain the position of the first transmission member 1 by detecting the position of the detection device 72 without directly detecting the position of the driven member 32 or the first transmission member 1. Since the volume of the detection device 72 can be relatively small, the arrangement of the detection device 72 on the driven member 32 can be more convenient, and the communication between the detection device 72 and the detection main body 71 can be more convenient, so that the detection main body 71 can more accurately detect the position where the detection device 72 is located.

[0073] In some examples of the present invention, referring to Figure 8 , the detection main body 71 can be a sensor main body, and the detection device 72 can include a magnetic steel sleeve 721 and a detection magnetic steel 722 arranged on the magnetic steel sleeve 721. For example, in the example of Figure 8 , the sensor main body can be fixed on the housing 206 by a sensor fixing screw 711. The central axis of the magnetic steel sleeve 721 can be parallel to the central axis of the sensor main body. The detection magnetic steel 722 can be press-fitted inside the magnetic steel sleeve 721, which can reduce the occupied space of the detection magnetic steel 722. The magnetic steel sleeve 721 can be in threaded cooperation with the driven member 32, so that the magnetic steel sleeve 721 can be fixed on the driven member 32, making the magnetic steel sleeve 721, the magnetic steel and the driven member 32 have no relative movement, so that the position of the driven member 32 and the first transmission member 1 can be accurately reflected by detecting the position of the detection magnetic steel 722, and the reliability is relatively high.

[0074] In an embodiment of the present invention, as Figure 9As shown, the clutch device 100 further includes a locking device 8, which is switchable between a locked state and an unlocked state. When the locking device 8 is in the locked state, the first transmission member 1 is locked in the engaged position, and when the locking device 8 is in the unlocked state, the locking of the first transmission member 1 is released. In this way, in the case where the vehicle needs to be steered by the steering wheel 210 during normal driving of the vehicle, etc., the locking device 8 can ensure that the first transmission member 1 is stably in the engaged position, avoiding the separation of the first transmission member 1 from the second transmission member 2 due to factors such as vehicle bumps, vibrations, or control failures, that is, it can ensure the stable transmission of the steering torque, thereby ensuring safety.

[0075] In some specific embodiments of the present invention, referring to Figure 9 , the locking device 8 includes a retractable locking core 81. The driven member 32 has a stepped portion 321. When the locking device 8 is in the locked state, the locking core 81 is adapted to abut against the stepped portion 321 to keep the first transmission member 1 in the engaged position through the driven member 32, and when the locking device 8 is in the unlocked state, the locking core 81 retracts to separate from the stepped portion 321. For example, in Figure 9 's example, the locking device 8 further includes a locking body 82, the locking core 81 is provided on the locking body 82, and the locking body 82 can be fixed on the housing 206. When the locking device 8 is in the locked state, the locking core 81 extends out of the locking body 82 to abut against the stepped portion 321, locking the first transmission member 1 in the engaged position; when the first transmission member 1 needs to be separated from the second transmission member 2, the controller can send an unlocking signal to the locking core 81. At this time, the locking core 81 can retract into the locking body 82, enabling the driven member 32 to drive the first transmission member 1 to move towards the separation position for complete decoupling operation.

[0076] Thus, by providing the above-mentioned retractable locking core 81, the locking core 81 can effectively limit the axial movement of the driven member 32 by abutting against the stepped portion 321 when the locking device 8 is in the locked state. Since the driven member 32 and the first transmission member 1 are relatively fixed axially, the first transmission member 1 can be indirectly locked in the engaged position, and since the locking core 81 does not need to directly contact the first transmission member 1, it can avoid affecting the rotation of the first transmission member 1.

[0077] In some embodiments of the present invention, as shown in Figure 4 , Figure 5 , Figures 7-9 , at least one protrusion 11 is provided on one of the first transmission member 1 and the second transmission member 2, and at least one groove 21 is formed on the other of the first transmission member 1 and the second transmission member 2. When the first transmission member 1 is in the engaged position, the protrusion 11 is fitted in the groove 21, and when the first transmission member 1 is in the separated position, the protrusion 11 is disengaged from the groove 21. For example, in Figure 4 ,Figure 5 , Figures 7-9 In the example, both the protrusion 11 and the groove 21 are multiple, the multiple protrusions 11 may include multiple first protrusions and multiple second protrusions, and the multiple grooves 21 include multiple first grooves and multiple second grooves. The lower end of the first transmission member 1 is provided with multiple first protrusions, the multiple first protrusions are arranged at intervals along the circumference of the first transmission member 1, and a first groove is defined between two adjacent first protrusions. The upper end of the second transmission member 2 is provided with multiple second protrusions, the multiple second protrusions are arranged at intervals along the circumference of the second transmission member 2, and a second groove is defined between two adjacent second protrusions. When the first transmission member 1 is in the combined position, the multiple first protrusions are respectively matched in the multiple second grooves, and the multiple second protrusions are respectively matched in the multiple first grooves. Optionally, the protrusion 11 can be formed as a wedge-shaped protrusion with a gradually decreasing cross-sectional area in the direction away from the corresponding end face, and the groove 21 can be formed as a wedge-shaped groove with a gradually decreasing cross-sectional area in the direction from the notch to the groove bottom, and the shapes of the wedge-shaped protrusion and the wedge-shaped groove are adapted to each other. In the description of the present invention, the meaning of "multiple" is two or more.

[0078] Therefore, by setting the above-mentioned protrusion 11 and groove 21, when the first transmission member 1 is in the engagement position and the first transmission member 1 and the second transmission member 2 are subjected to extrusion force, the protrusion 11 and the groove 21 can fit tightly together, thereby eliminating the gap between the first transmission member 1 and the second transmission member 2, which is beneficial to the reliable transmission of steering torque.

[0079] It should be noted that the clutch device 100 according to the embodiment of the present invention adopts a tooth clutch type (i.e., the first transmission member 1 and the second transmission member 2 cooperate with each other through the protrusion 11 and the groove 21). However, the present invention is not limited to this. For example, the clutch device 100 can also be replaced by other rigid clutches; or an electromagnetic clutch type can be used to directly drive the electromagnet to achieve decoupling; of course, the clutch device can also use a friction clutch, a hydraulic clutch, etc.

[0080] The vehicle steering system 200 according to the second aspect of the present invention comprises the clutch device 100 according to the first aspect of the present invention. For example, the vehicle steering system 200 may comprise a steering wheel 210 and a steering gear 209, wherein the steering wheel 210 may be connected to the first transmission member 1 in a transmission manner to achieve the transmission of the steering torque, and the steering gear 209 may be connected to the second transmission member 2 in a transmission manner to achieve the transmission of the steering torque. Optionally, the second transmission member 2 and the steering gear 209 may be connected via an end face flange and locked via a threaded fastener such as a bolt.

[0081] According to the vehicle steering system 200 of the embodiment of the present invention, by adopting the above-mentioned clutch device 100, the torque transmission and disconnection between the steering wheel 210 and the wheels can be effectively realized. When playing a game, the wheels can be prevented from rotating following the steering wheel 210, thereby reducing the wear of the wheels, enhancing the user experience, and having a relatively high transmission efficiency, which can effectively improve the reliability of the vehicle steering system 200.

[0082] In some embodiments of the present invention, as Figure 10 shown, the vehicle steering system 200 further includes an angle limiting mechanism 201. The angle limiting mechanism 201 includes a turntable 202 and a limiting member 203. At least one mating structure is provided on the turntable 202, and a first limiting structure and a second limiting structure are provided on the limiting member 203. The turntable 202 rotates and drives the limiting member 203 to move so that the mating structure abuts against one of the first limiting structure and the second limiting structure. When the mating structure abuts against the first limiting structure, the turntable 202 is located at the first extreme position, and when the mating structure abuts against the second limiting structure, the turntable 202 is located at the second extreme position.

[0083] For example, the turntable 202 can be fixed to the steering shaft 5. When the driver controls the steering wheel 210 of the vehicle to drive the steering shaft 5 to rotate in the first rotation direction, for example, the clockwise direction, the turntable 202 can rotate together with the steering shaft 5 in the above-mentioned first rotation direction and drive the limiting member 203 to move. When the mating structure abuts against the first limiting structure, the turntable 202 rotates to the first extreme position. At this time, the turntable 202 cannot continue to rotate in the above-mentioned first rotation direction and can only rotate in the second rotation direction opposite to the first rotation direction, for example, the counterclockwise direction, thereby realizing the angle limit of the steering shaft 5 in the first rotation direction. When the driver controls the steering wheel 210 of the vehicle to drive the steering shaft 5 to rotate in the second rotation direction, for example, the counterclockwise direction, the turntable 202 can rotate together with the steering shaft 5 in the second rotation direction and drive the limiting member 203 to move. When the mating structure abuts against the second limiting structure, the turntable 202 rotates to the second extreme position. At this time, the turntable 202 cannot continue to rotate in the above-mentioned second rotation direction and can only rotate in the first rotation direction, thereby realizing the angle limit of the steering shaft 5 in the second rotation direction. Optionally, to ensure the angular alignment of the steering wheel 210 and the turntable 202, a flat key can be used to perform circumferential positioning on the turntable 202 and then press-fit it onto the steering shaft 5.

[0084] Thus, when the turntable 202 is located at the first limit position or the second limit position, the matching structure can be stopped with the first limiting structure or the second limiting structure, and the further rotation of the turntable 202 can be limited, so that the angular limit of the turntable 202 can be achieved, and the structure of the angular limit mechanism 201 is simple and the reliability is high. Moreover, when the steering wheel 210 of the vehicle steering system 200 is disconnected from the steering gear 209 to transmit the steering torque, it can effectively avoid that the clock spring and the angle sensor and other parts are damaged due to the random rotation of the steering wheel 210. In addition, by setting the above-mentioned limiting member 203, the matching structure can only be stopped with the corresponding first limiting structure or second limiting mechanism when the turntable 202 is located at the first limit position or the second limit position, and when the turntable 202 is located at other positions, the matching structure can be staggered with the first limiting structure and the second limiting structure, so as to achieve the large angle limit of the angular limit mechanism 201 and meet the steering requirements of the vehicle.

[0085] In a further embodiment of the present invention, Figure 10 , a matching groove 2021 is provided on the turntable 202, and a guide shaft 2031 is provided on the limiter 203. The guide shaft 2031 is movably matched in the matching groove 2021, and the turntable 202 drives the limiter 203 to move through the guide shaft 2031. Therefore, by providing the matching groove 2021 and the guide shaft 2031, the turntable 202 can drive the limiter 203 to move while rotating, and the guide shaft 2031 cooperates with the matching groove 2021, so that the rotation angle of the turntable 202 can be larger (for example, greater than 360°), so that a large angle limit can be achieved, which fully meets the steering requirements of the vehicle.

[0086] In some optional embodiments of the present invention, referring to Figure 10 , the matching groove 2021 can be a spiral groove, when the guide shaft 2031 is located at both ends of the matching groove 2021, the limit member 203 is located at the first limit position or the second limit position, and the matching groove 2021 includes a plurality of matching segments, each of which can be in the shape of an arc. Thus, by providing the plurality of matching segments extending in the shape of an arc, when the guide shaft 2031 is matched in the matching segment, the friction between the guide shaft 2031 and the matching segment is almost zero, thereby effectively reducing the friction loss between the guide shaft 2031 and the matching segment, and improving the service life of the entire vehicle steering system 200. Optionally, the guide shaft 2031 can be a limit pin. But it is not limited to this.

[0087] In some embodiments of the present invention, Figure 10 The rotation angle limiting mechanism 201 further includes a fixing member 204, on which a guide groove 2041 is formed, and the limiting member 203 is movably fitted in the guide groove 2041. When the rotating disk 202 rotates, the limiting member 203 moves in the guide groove 2041. For example, in combination withFigure 10 , the fixing member 204 can be fixed to the housing 206 by fastening screws 2042. The guiding groove 2041 can extend along the radial direction of the turntable 202. The limiting member 203 is fitted in the guiding groove 2041 and is movable relative to the guiding groove 2041. During the rotation of the turntable 202 around the central axis of the turntable 202, the guiding shaft 2031 will move along the fitting groove 2021. Since the guiding shaft 2031 is provided on the limiting member 203, the guiding shaft 2031 will drive the limiting member 203 to move in the guiding groove 2041 relative to the fixing member 204. Thus, by providing the above-mentioned guiding groove 2041, the guiding groove 2041 can play an effective limiting and guiding role, enabling the limiting member 203 to move along the guiding groove 2041 and restricting the rotation of the limiting member 203, thereby ensuring the limiting reliability of the corner limiting mechanism 201.

[0088] In some alternative embodiments of the present invention, referring to Figure 10 , an elastic member 205 can be provided between the inner wall of the guiding groove 2041 and the limiting member 203. Among them, an elastic coating can be provided on the limiting member 203 for pre-tightening and anti-wear. Thus, the elastic member 205 provided in this way can reduce the friction between the inner wall of the guiding groove 2041 and the limiting member 203, reduce the wear of the fixing member 204 and the limiting member 203, make the movement of the limiting member 203 smoother and more stable, and improve the moving speed of the limiting member 203. Moreover, the elastic member 205 can also avoid generating noise due to the contact between the limiting member 203 and the inner wall of the guiding groove 2041, making the working efficiency and reliability of the corner limiting mechanism 201 higher. Further optionally, the elastic member 205 can be a spring piece. But it is not limited thereto.

[0089] It should be noted that the corner limiting mechanism 201 is not limited to the above structure. For example, a planetary gear speed reduction structure or a nut-screw limiting structure can also be adopted.

[0090] In some embodiments of the present invention, as Figures 2-6 shown, the vehicle steering system 200 further includes a housing 206. At least a part of at least one of the first transmission member 1 and the second transmission member 2 of the clutch device 100 is provided in the housing 206. The driven member 32 of the clutch device 100 is provided in the housing 206. A dust cover 207 is provided at one end of the housing 206 away from the first transmission member 1.

[0091] For example, in Figures 2-6In the example, the housing 206 includes an upper housing 2061 and a lower housing 2062. Among them, the upper housing 2061 and the lower housing 2062 can be processed with mating toroidal surfaces to ensure installation coaxiality. At the same time, a first sealing ring 2063, such as an O-ring, can be used for radial sealing between the upper housing 2061 and the lower housing 2062 and locked by a first bolt assembly 2064. A support member 208 is fixed on the upper housing 2061, and the dust cover 207 can be nested on the support member 208. During installation, the dust cover 207 can be in extrusion fit with the vehicle's front bulkhead. Optionally, the dust cover 207 can be a rubber dust cover.

[0092] Thus, by providing the above-mentioned dust cover 207, the dustproof, waterproof and sound insulation effects of the vehicle steering system 200 can be effectively achieved, thereby improving the reliability of the vehicle steering system 200 and the ride comfort of the vehicle.

[0093] In some alternative embodiments of the present invention, the vehicle steering system 200 may further include a feel simulation device and a control unit. The feel simulation device can simulate the steering feel when the steering wheel 210 and the steering gear 209 transmit steering torque when the steering torque transmission between the steering wheel 210 and the steering gear 209 is disconnected. The control unit can interact with the whole vehicle, identify necessary signals and feedback the game feel required by the driver through sensors.

[0094] The following will describe in detail the vehicle steering system 200 according to specific embodiments of the present invention in conjunction with Figures 1-10 As shown in

[0095] As Figure 6 and Figure 7 shown, during assembly, the driver 311 is fixed to the upper housing 2061 by mounting screws 3111, and the joint surface between the driver 311 and the upper housing 2061 can be sealed with a second sealing ring, such as an O-ring. The output shaft of the driver 311 is positioned with a first bearing 2065, such as a deep groove ball bearing, press-fitted into the lower housing 2062 to ensure coaxiality. At the same time, a plug 3131 is used to compress the first bearing 2065, and thread sealant is applied for sealing. Among them, the driver 311, such as a motor, can be arranged radially along the steering shaft 5, or can be arranged axially parallel to the steering shaft 5 in an integrated motor with ball screw drive type.

[0096] The transmission member 312 is installed on the lower housing 2062 through a second bearing 3121, such as a double row angular contact bearing. One side of the outer ring of the second bearing 3121 abuts against the shoulder of the lower housing 2062, and the other side is axially positioned by a first backlash retaining ring 3122, such as a hole type backlash retaining ring. One side of the inner ring of the second bearing 3121 abuts against the shoulder of the transmission member 312, and the other side is axially positioned by a second backlash retaining ring 3123, such as a shaft type backlash retaining ring, so as to realize the installation and positioning of the transmission member 312 and the lower housing 2062.

[0097] The steering shaft 5 is positioned and installed with the upper housing 2061 through a third bearing 51, such as a deep groove ball bearing. One side of the outer ring of the third bearing 51 abuts against the shaft shoulder of the upper housing 2061, and the other side is axially positioned through a third anti-backlash retaining ring 511, such as a hole anti-backlash retaining ring. One side of the inner ring of the third bearing 51 abuts against the shaft shoulder of the steering shaft 5, and the other side is axially positioned through a fourth anti-backlash retaining ring 512, such as a shaft anti-backlash retaining ring, so as to achieve the installation and positioning of the steering shaft 5 and the upper housing 2061. The clutch device 100 includes an oil seal 9, the outer ring of the oil seal 9 is pressed into the upper housing 2061, and the inner ring of the oil seal 9 forms a dynamic sealing relationship with the steering shaft 5, ensuring that the dustproof and waterproof level of the entire vehicle steering system 200 meets the requirements. The steering gear 209 includes a steering gear housing 2091, and the steering gear housing 2091 and the lower housing 2062 are processed with matching annular surfaces to ensure the installation coaxiality. At the same time, a third sealing ring 2092, such as an O-ring, is used for axial sealing. After positioning, the second bolt assembly 2093 is used to lock. At the same time, the steering shaft 5 and the gear shaft of the steering gear 209 are matched through a needle bearing 2094 to ensure coaxiality.

[0098] like Figure 4 and Figure 5 As shown, when the first transmission member 1 is in the engaged position, the driver's steering torque is transmitted to the steering shaft 5 through the steering column 211, and the steering shaft 5 transmits the steering torque to the first transmission member 1 through the ball sliding assembly 6. Since the first transmission member 1 is engaged with the second transmission member 2 at this time, the steering gear 209 can be driven to rotate. When the first transmission member 1 is in the disengaged position, the first transmission member 1 is completely separated from the second transmission member 2. At this time, the first transmission member 1 can rotate freely relative to the second transmission member 2, thereby realizing the interruption of the mechanical transmission chain of the vehicle steering system 200. When in the game mode, the driver's operation of the steering wheel 210 will not be transmitted to the wheels, that is, the decoupling of the vehicle steering system 200 is realized.

[0099] The vehicle steering system 200 according to the embodiment of the present invention has the function of decoupling the mechanical transmission chain, and the clutch device 100 can be applied on a platform, for example, it can be installed on the steering shaft 5, so that the steering wheel 210 can rotate freely without changing the hard points of the original vehicle steering system. It can ensure that the driving steering feel when the first transmission member 1 is in the engaged position remains consistent with the original state, and the changes to the original vehicle steering system are relatively small.

[0100] A vehicle according to an embodiment of the third aspect of the present invention (not shown) comprises a vehicle steering system 200 according to an embodiment of the second aspect of the present invention.

[0101] According to the vehicle of the embodiment of the present invention, by adopting the above-mentioned vehicle steering system 200, it is possible to effectively realize the transmission and disconnection of the steering torque between the steering wheel 210 and the wheels, and the transmission efficiency and reliability are high.

[0102] Other components and operations of the vehicle according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

[0103] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by 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", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 construed as a limitation of the present invention.

[0104] In the description of the present invention, the "first feature" and "second feature" may include one or more of such features.

[0105] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected" and "coupled" shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application may be understood according to specific circumstances.

[0106] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", 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 invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0107] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A clutch device, characterized in that, Comprising: A first transmission member and a second transmission member, the first transmission member being movable between a combined position and a separated position, the first transmission member being combined with the second transmission member and transmitting torque when in the combined position, and the first transmission member being separated from the second transmission member and disconnecting the transmission of torque when in the separated position; A driving mechanism, the driving mechanism comprising a driving device and a driven member, the driven member being respectively in transmission connection with the driving device and the first transmission member, the driving device driving the driven member to move so as to drive the first transmission member to move between the combined position and the separated position, and the moving direction of the driven member being parallel to the moving direction of the first transmission member; The central axes of the driven member and the first transmission member both extend along the moving direction of the driven member, the first transmission member being relatively fixed axially of the driven member with respect to the driven member, and the first transmission member and the driven member being relatively rotatable; The central axes of the driven member and the first transmission member both extend along the moving direction of the driven member, the first transmission member being relatively fixed axially of the driven member with respect to the driven member, and the first transmission member and the driven member being relatively rotatable; A bearing is provided between the first transmission member and the driven member, the bearing comprising an inner ring, an outer ring, and a plurality of rolling elements rollably provided between the inner ring and the outer ring; The first transmission member is provided with a first shoulder and a first fastener spaced axially, the inner ring being abutted between the first shoulder and the first fastener, the driven member is provided with a second shoulder and a second fastener spaced axially, the outer ring being abutted between the second shoulder and the second fastener, so as to realize the relative fixation of the first transmission member and the driven member axially of the driven member and the relative rotation circumferentially; 2. The clutch device according to claim 1, characterized in that, Further comprising: A steering shaft, the first transmission member being sleeved on the steering shaft, the first transmission member being relatively fixed circumferentially of the steering shaft with respect to the steering shaft, and the first transmission member being movable relative to the steering shaft axially of the steering shaft between the combined position and the separated position.

3. The clutch device according to claim 1, characterized in that The driven member is a lead screw; The driving device comprises: A driver; A transmission member, the transmission member being in transmission connection with the driver, and the inner peripheral surface of the transmission member having an internal thread cooperating with the driven member.

4. The clutch device according to claim 3, characterized in that, The driver has an output shaft; The driving device further comprises: A driving member, the driving member being fixed on the output shaft, and the driving member cooperating with the transmission member to drive the transmission member to rotate.

5. The clutch device according to claim 4, characterized in that, The driving member is a worm, and the transmission member comprises a worm wheel meshing with the worm; 6. The clutch device according to any one of claims 1-5, characterized in that, Further comprising: A controller; A position detection assembly, the position detection assembly communicating with the controller, the position detection assembly being used for detecting the position of the first transmission member and sending the position signal of the first transmission member to the controller.

7. The clutch device according to claim 6, characterized in that, The position detection assembly comprises: A detection main body, the detection main body communicating with the controller; The detection device is provided on the driven member. The detection device communicates with the detection main body. The detection main body obtains the position of the first transmission member by detecting the position of the detection device and sends the position signal of the detection device to the controller.

8. The clutch device according to claim 7, wherein The detection main body is a sensor main body. The detection device includes a magnetic steel sleeve and a detection magnetic steel provided on the magnetic steel sleeve.

9. The clutch device according to any one of claims 1-5, characterized in that, Further included is: A locking device that can be switched between a locked state and an unlocked state. When the locking device is in the locked state, the first transmission member is locked at the engaged position. When the locking device is in the unlocked state, the locking of the first transmission member is released.

10. The clutch device according to claim 9, characterized in that, The locking device includes a retractable locking core; The driven member has a stepped portion. When the locking device is in the locked state, the locking core is adapted to abut against the stepped portion to keep the first transmission member at the engaged position through the driven member. When the locking device is in the unlocked state, the locking core retracts to separate from the stepped portion.

11. The clutch device according to any one of claims 1-5, characterized in that, At least one protrusion is provided on one of the first transmission member and the second transmission member, and at least one groove is formed on the other of the first transmission member and the second transmission member; When the first transmission member is at the engaged position, the protrusion is fitted in the groove. When the first transmission member is at the separated position, the protrusion is disengaged from the groove.

12. A vehicle steering system, characterized in that, Including the clutch device according to any one of claims 1-11.

13. A vehicle, characterized in that, Including the vehicle steering system according to claim 12.

Images