Knob type gear shifting device and vehicle

Abstract

The invention discloses a knob type gear shifting device and a vehicle, and relates to the technical field of knob type gear shifters, the knob type gear shifting device comprises a knob, a rotating shaft and a spring bolt, the rotating shaft is connected with the knob, the rotating shaft is provided with first locking teeth along a first circumference and provided with second locking teeth along a second circumference, and the second circumference and the first circumference are concentric; the second circumference is located on the inner side of the first circumference, the second lock teeth and the first lock teeth are arranged in a staggered mode, the spring bolt can move in the radial direction of the rotating shaft and is matched with the first lock teeth and the second lock teeth, and the spring bolt is sequentially provided with a first unlocking position, a second unlocking position, a locking position, a third unlocking position and a fourth unlocking position in the direction close to the circle center of the first circumference or the second circumference. According to the rotary knob type gear shifting device, the problems that noise is generated when a rotary knob of an existing rotary knob type gear shifting device returns, abrasion is caused, and different locking strategies adopted by different countries and regions for certain gears cannot be met are solved.

Description

Technical Field

[0001] This application relates to the technical field of rotary shift levers, and particularly to a rotary shifting device and a vehicle. Background Art

[0002] Currently, with the development of vehicle technology, rotary shifting devices have been rapidly popularized. When used for vehicle gear shifting operations, the rotary shifting device can rotate clockwise from the Park gear to the Reverse gear, Neutral gear, and Drive gear. However, the currently used rotary shifting device has at least the following problems:

[0003] Firstly, since the vehicle needs to be automatically shifted to the P gear when the engine is turned off, the knob of the current rotary shifting device needs to rotate back to the P gear. The physical return of the knob generates noise / hysteresis and causes mechanical wear, resulting in a risk of jamming.

[0004] Secondly, the rotary shifting device requires a self-locking function for each gear in P, R, N, and D, but the current rotary shifting device cannot meet the different locking strategies adopted for certain gears in different countries and regions. Summary of the Invention

[0005] The purpose of this application is to provide a rotary shifting device and a vehicle, which solve the problems of noise generation, wear, and inability to meet different locking strategies for certain gears in different countries and regions caused by the return of the knob of the current rotary shifting device.

[0006] To achieve the above purpose, this application provides a rotary shifting device, including a knob, and further including:

[0007] A rotating shaft, connected to the knob, the rotating shaft is provided with first locking teeth along a first circumference and second locking teeth along a second circumference that is concentric with the first circumference and located inside the first circumference, and the second locking teeth are arranged in an interleaved manner with the first locking teeth;

[0008] A locking tongue, moving radially along the rotating shaft and cooperating with the first locking teeth and the second locking teeth. The locking tongue has a first unlocking position, a second unlocking position, a locking position, a third unlocking position, and a fourth unlocking position in sequence along the direction close to the center of the first circumference or the second circumference. The locking tongue is configured to lock the rotating shaft in the locking position, allow the rotating shaft to rotate unidirectionally in the second unlocking position or the third unlocking position, and allow the rotating shaft to rotate bidirectionally in the first unlocking position or the fourth unlocking position.

[0009] In some embodiments, the rotary shifting device further includes:

[0010] A transmission component, used to drive the locking tongue to move radially relative to the rotating shaft along the rotating shaft;

[0011] A power assembly, connected to the transmission assembly, for driving the transmission assembly to operate;

[0012] A control module, communicatively connected to the power assembly, for sending control instructions to the power assembly according to the received current state of the vehicle, brake signal, and rotation angle of the rotating shaft.

[0013] In some embodiments, the control module is further configured to control the lock tongue to be in the second unlocking position or the locking position when the knob is in the neutral gear and the driver releases the brake.

[0014] In some embodiments, the knob-type shift device further includes an angle detection component, communicatively connected to the control module, and the angle detection component is configured to detect the rotation angle of the rotating shaft.

[0015] In some embodiments, the knob-type shift device further includes a displacement detection component, communicatively connected to the control module, and the displacement detection component is configured to detect the displacement of the lock tongue.

[0016] In some embodiments, the knob-type shift device further includes a locking plunger, the lock tongue is integrally provided on the locking plunger, and the locking plunger is provided with a rack;

[0017] The transmission assembly includes a worm and a turbine, the worm is provided on the power assembly and is in transmission connection with the turbine, and the turbine meshes with the rack.

[0018] In some embodiments, the knob-type shift device further includes a cover, the cover covers the outside of the rotating shaft, and the knob is exposed from the cover;

[0019] The cover is sequentially provided with a plurality of indicating parts along a preset straight line direction, each indicating part is communicatively connected to the control module, and each indicating part is respectively configured to emit a display prompt for the corresponding gear position.

[0020] In some embodiments, the knob-type shift device further includes a mounting housing, the rotating shaft is mounted in the mounting housing, and a gear ring is provided inside the mounting housing;

[0021] At least one pair of guiding components protruding radially from the rotating shaft are provided in the rotating shaft, and the guiding components include guiding spheres in contact with and abutted against the gear ring and guiding elastic members abutted between the guiding spheres and the rotating shaft.

[0022] In some embodiments, a plurality of flexible ribs are integrally provided along the circumferential direction on the top of the mounting housing, and the flexible ribs protrude from the inner wall of the mounting housing to prevent the rotating shaft from shaking during rotation.

[0023] This application also provides a vehicle, including the knob-type shift device described in any one of the above.

[0024] Compared with the above background art, the rotary shift device provided by the embodiment of the present application includes a knob, a rotating shaft and a locking tongue. The rotating shaft is connected to the knob. The rotating shaft is provided with first locking teeth along a first circumference and second locking teeth along a second circumference. The second circumference is concentric with the first circumference, and the second circumference is located inside the first circumference. The second locking teeth are arranged staggered with the first locking teeth. The locking tongue can move radially along the rotating shaft and cooperate with the first locking teeth and the second locking teeth. The locking tongue has a first unlocking position, a second unlocking position, a locking position, a third unlocking position and a fourth unlocking position in sequence along the direction close to the center of the first circumference or the second circumference.

[0025] Wherein, the locking tongue is configured to have the function of locking the rotating shaft and preventing the rotating shaft from rotating in the locking position. The locking tongue is configured to have the function of allowing the rotating shaft to rotate in a single clockwise or counterclockwise direction in the second unlocking position or the third unlocking position. The locking tongue is configured to allow the rotating shaft to rotate in both clockwise and counterclockwise directions in the first unlocking position or the fourth unlocking position.

[0026] The rotary shift device arranged in this way has the following beneficial effects mainly:

[0027] First, for the vehicle to turn off the engine when the knob is in any gear state, by placing the locking tongue in the locking position, the knob is in the locked state. For example, after the vehicle turns off the engine when the knob is in the D gear state, if the driver does not step on the brake, by placing the locking tongue in the locking position, the knob is in the locked state, and at this time the knob cannot rotate. After the vehicle starts normally, the driver steps on the brake, and by placing the locking tongue in the second unlocking position, the knob can rotate in the clockwise direction, so as to rotate from the P gear to the R gear. In this way, for the power-off operation of the knob in the non-P gear situation, by placing the locking tongue in the locking position, the knob is in the locked state, ensuring that when starting next time, the knob can start from the P gear. Compared with traditional vehicles, the knob does not need to rotate mechanically, avoiding the noise / hysteresis generated by the physical return of the knob and mechanical wear.

[0028] Second, according to the regulations of some countries, after the knob is turned to the N gear, if the driver releases the brake, the knob needs to be locked and cannot go to the R gear or the D gear. And according to the Chinese regulations, after the knob is turned to the N gear, if the driver releases the brake, the knob can only go to the D gear and cannot go to the R gear. Based on this, according to the regulations of some countries, after the knob is turned to the N gear, if the driver releases the brake, by placing the locking tongue in the locking position, the knob is locked and cannot go to the R gear or the D gear. And according to the Chinese regulations, after the knob is turned to the N gear, if the driver releases the brake, by placing the locking tongue in the second unlocking position, the knob can only go to the D gear and cannot go to the R gear. In this way, the rotary shift device can meet the different locking strategies for the N gear in different countries and regions.

[0029] Thirdly, after the vehicle is turned off, the knob is locked by placing the locking tongue in the locked position; after the vehicle is normally started and the driver steps on the brake, the knob can be rotated clockwise by placing the locking tongue in the second unlocking position, so as to rotate from the P gear to the R gear; after the knob is rotated to the R gear, if the driver does not release the brake, the knob can be rotated to the P gear or the N gear by placing the locking tongue in the first unlocking position; after the driver steps on the brake in the N gear, the knob can be operated arbitrarily by placing the locking tongue in the first unlocking position; after the knob is rotated to the D gear, regardless of whether the driver steps on the brake or not, the knob can only be rotated to the N gear by placing the locking tongue in the second unlocking position; after the vehicle is turned off with the knob in the D gear state, if the driver does not step on the brake, the knob is in the locked state by placing the locking tongue in the locked position; after the vehicle is normally started, if the driver steps on the brake, the knob can be rotated clockwise by placing the locking tongue in the third unlocking position, and the knob can be rotated out from the P gear to the R gear; after the knob is rotated to the R gear, if the driver does not release the brake, the knob can be rotated to the P gear or the N gear by placing the locking tongue in the fourth unlocking position; after the driver steps on the brake in the N gear, the knob can be operated arbitrarily by placing the locking tongue in the fourth unlocking position; after the knob is rotated to the D gear, regardless of whether the driver steps on the brake or not, the knob can only be rotated to the N gear by placing the locking tongue in the third unlocking position. In this way, the knob and the rotating shaft can rotate within a range of 360°, and the locking tongue realizes different unlocking and locking functions at different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings required for use in the description of the embodiments or the related art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0031] Figure 1 is an exploded view of the knob-type shift device in the embodiment of the present application;

[0032] Figure 2 is a schematic diagram of the cooperation between the rotating shaft and the locking plunger in the knob-type shift device in the embodiment of the present application;

[0033] Figure 3 is a schematic diagram of the locking and unlocking of the locking tongue at different positions in the knob-type shift device in the embodiment of the present application;

[0034] Figure 4 is an assembly schematic diagram of the power component, the transmission component, the locking plunger and the rotating shaft in the knob-type shift device in the embodiment of the present application;

[0035] Figure 5 is a schematic diagram of the cooperation between the Hall element and the magnet in the knob-type shift device in the embodiment of the present application;

[0036] Figure 6 It is a cross-sectional view of the knob-type shift device in the embodiment of the present application;

[0037] Figure 7 It is a schematic top view of the top structure of the embedded housing of the knob-type shift device in the embodiment of the present application;

[0038] Figure 8 It is Figure 7 an enlarged schematic view of part A in

[0039] Figure 9 It is a cross-sectional view of the knob-type shift device from another angle in the embodiment of the present application;

[0040] Figure 10 It is Figure 9 a top view of part B in

[0041] Figure 11 It is an assembly schematic view of the embedded housing, the carrier and the bottom shell in the knob-type shift device of the embodiment of the present application;

[0042] Figure 12 It is a schematic overall structure view of the knob-type shift device in the embodiment of the present application.

[0043] Wherein:

[0044] 10 - Knob;

[0045] 20 - Rotating shaft, 21 - Gear disk, 211 - First locking tooth, 212 - Second locking tooth, 22 - Guide assembly, 221 - Guide sphere, 222 - Guide elastic member;

[0046] 30 - Locking plunger, 31 - Lock tongue, 32 - Rack;

[0047] 40 - Transmission assembly, 41 - Worm, 42 - Turbine;

[0048] 50 - Power assembly;

[0049] 60 - Control module;

[0050] 70 - Angle detection assembly, 71 - Hall element, 72 - Magnet;

[0051] 80 - Displacement detection assembly, 81 - Grating, 82 - Photoelectric sensor;

[0052] 90 - Cover, 91 - Indication part;

[0053] 100 - Embedded housing, 101 - Tooth ring, 102 - Flexible rib;

[0054] 110 - Carrier;

[0055] 120 - Bottom case. Specific implementation manners

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0057] To enable those skilled in the art of this technology to better understand the solution of the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0058] Please refer to Figure 1 , Figure 2 and Figure 12 , the knob - type shift device provided by the embodiments of the present application includes a knob 10, a rotating shaft 20, and a locking tongue 31.

[0059] The knob 10 can rotate 360° in the clockwise direction, and the knob 10 can selectively rotate from the parking gear position (P - gear) to the reverse gear position (R - gear), neutral gear position (N - gear), and forward gear position (D - gear) in sequence in the clockwise direction.

[0060] The rotating shaft 20 is connected to the knob 10. A gear disk 21 is provided at one end of the rotating shaft 20 away from the knob 10. Specifically, the rotating shaft 20 is provided with first locking teeth 211 along a first circumference and second locking teeth 212 along a second circumference. The second circumference is concentric with the first circumference, and the second circumference is located inside the first circumference. The second locking teeth 212 are arranged staggeredly with the first locking teeth 211.

[0061] The locking tongue 31 can move radially along the rotating shaft 20 and cooperate with the first locking teeth 211 and the second locking teeth 212. The locking tongue 31 has a first unlocking position, a second unlocking position, a locking position, a third unlocking position, and a fourth unlocking position in sequence along the direction close to the center of the first circumference or the second circumference.

[0062] Among them, the locking tongue 31 is configured to have the function of locking the rotating shaft 20 and preventing the rotating shaft 20 from rotating when in the locking position. The locking tongue 31 is configured to have the function of allowing the rotating shaft 20 to rotate in a single direction (clockwise or counter - clockwise) when in the second unlocking position or the third unlocking position. The locking tongue 31 is configured to allow the rotating shaft 20 to rotate in both clockwise and counter - clockwise directions when in the first unlocking position or the fourth unlocking position.

[0063] With the knob - type shift device configured in this way, the knob 10 and the rotating shaft 20 can rotate within a range of 360°, and the locking tongue 31 realizes different unlocking and locking functions at different positions.

[0064] Specifically, please refer to Figure 3 After the vehicle is turned off, the knob 10 is locked by placing the locking tongue 31 in the locked position; after the vehicle is normally started and the driver steps on the brake, the knob 10 can be rotated clockwise by placing the locking tongue 31 in the second unlocking position, so as to rotate from the P gear to the R gear; after the knob 10 is rotated to the R gear, if the driver does not release the brake, the knob 10 can be rotated to the P gear or the N gear by placing the locking tongue 31 in the first unlocking position. If the driver releases the brake, the locking tongue 31 will re-enter the locked position of the gear disc 21 to lock the knob 10; according to the regulations of some countries, after the knob 10 is rotated to the N gear, if the driver releases the brake, the knob 10 is locked by placing the locking tongue 31 in the locked position and cannot go to the R gear or the D gear. According to the Chinese regulations, after the knob 10 is rotated to the N gear, if the driver releases the brake, the knob 10 can only go to the D gear and cannot go to the R gear by placing the locking tongue 31 in the second unlocking position; after the driver steps on the brake in the N gear, the knob 10 can be operated arbitrarily by placing the locking tongue 31 in the first unlocking position; after the knob 10 is rotated to the D gear, regardless of whether the driver steps on the brake or not, the knob 10 can only be rotated to the N gear by placing the locking tongue 31 in the second unlocking position; after the vehicle is turned off when the knob 10 is in the D gear state, if the driver does not step on the brake, the knob 10 is in the locked state by placing the locking tongue 31 in the locked position; after the vehicle is normally started, if the driver steps on the brake, the knob 10 can be rotated clockwise by placing the locking tongue 31 in the third unlocking position, and the knob 10 can be rotated out from the P gear to the R gear; after the knob 10 is rotated to the R gear, if the driver does not release the brake, the knob 10 can be rotated to the P gear or the N gear by placing the locking tongue 31 in the fourth unlocking position. If the driver releases the brake, the locking tongue 31 will re-enter the locked position of the gear disc 21 to lock the knob 10; according to the regulations of some countries, after the knob 10 is rotated to the N gear, if the driver releases the brake, the knob 10 is locked by placing the locking tongue 31 in the locked position and cannot go to the R gear or the D gear. According to the Chinese regulations, after the knob 10 is rotated to the N gear, if the driver releases the brake, the knob 10 can only go to the D gear and cannot go to the R gear by placing the locking tongue 31 in the third unlocking position; after the driver steps on the brake in the N gear, the knob 10 can be operated arbitrarily by placing the locking tongue 31 in the fourth unlocking position; after the knob 10 is rotated to the D gear, regardless of whether the driver steps on the brake or not, the knob 10 can only be rotated to the N gear by placing the locking tongue 31 in the third unlocking position.

[0065] It should be emphasized that for the vehicle to turn off the engine when the knob 10 is in any gear position, by placing the locking tongue 31 in the locked position, the knob 10 is in the locked state. For example, after the vehicle turns off the engine when the knob 10 is in the D gear position, if the driver does not step on the brake, by placing the locking tongue 31 in the locked position, the knob 10 is in the locked state, and at this time the knob 10 cannot rotate. After the vehicle starts normally, the driver steps on the brake, and by placing the locking tongue 31 in the second unlocking position, the knob 10 can rotate clockwise, so as to rotate from the P gear to the R gear. In this way, for the power-off operation of the knob 10 in non-P gear cases, by placing the locking tongue 31 in the locked position, the knob 10 is in the locked state, ensuring that when starting next time, the knob 10 can start from the P gear. Compared with traditional vehicles, the knob 10 does not need to rotate mechanically, avoiding noise / hysteresis caused by the physical return of the knob 10 and mechanical wear.

[0066] In addition, according to the regulatory requirements of some countries, after the knob 10 is turned to the N gear, if the driver releases the brake, the knob 10 needs to be locked and cannot go to the R gear or the D gear. And according to the Chinese regulatory requirements, after the knob 10 is turned to the N gear, if the driver releases the brake, the knob 10 can only go to the D gear and cannot go to the R gear. Based on this, according to the regulatory requirements of some countries, after the knob 10 is turned to the N gear, if the driver releases the brake, by placing the locking tongue 31 in the locked position, the knob 10 is locked and cannot go to the R gear or the D gear. And according to the Chinese regulatory requirements, after the knob 10 is turned to the N gear, if the driver releases the brake, by placing the locking tongue 31 in the second unlocking position, the knob 10 can only go to the D gear and cannot go to the R gear. In this way, the knob-type shift device can meet the different locking strategies for the N gear in different countries and regions.

[0067] Of course, according to actual needs, the number of the first locking teeth 211 on the first circumference is the same as the number of the second locking teeth 212 on the second circumference, both being at least one.

[0068] For example, taking the number of the first locking teeth 211 on the first circumference and the number of the second locking teeth 212 on the second circumference both being eight as an example, the eight first locking teeth 211 are evenly arranged along the outer circle, and the eight second locking teeth 212 are evenly arranged along the inner circle. On this basis, the so-called staggered arrangement of the second locking teeth 212 and the first locking teeth 211 means that any second locking tooth 212 is arranged at the inner gap position between two adjacent first locking teeth 211. In this way, the angle between any adjacent first locking tooth 211 and second locking tooth 212 is 22.5 degrees. When the knob 10 rotates 22.5 degrees, correspondingly, the knob 10 switches to the next gear.

[0069] Please refer to Figure 4, the rotary shift device further includes a transmission assembly 40 and a power assembly 50. Among them, the transmission assembly 40 is used to drive the locking tongue 31 to move relative to the rotating shaft 20 along the radial direction of the rotating shaft 20; the power assembly 50 is connected to the transmission assembly 40, and the power assembly 50 is used to drive the transmission assembly 40 to operate.

[0070] In this embodiment, the rotary shift device further includes a locking plunger 30. The locking tongue 31 is integrally provided on the locking plunger 30, and the locking plunger 30 is provided with a rack 32. Further, the transmission assembly 40 includes a worm 41 and a worm wheel 42. The worm 41 is provided on the power assembly 50 and is in transmission connection with the worm wheel 42. A corresponding gear can be provided on the worm wheel 42, and this gear can mesh with the rack 32.

[0071] In this way, under the power action of the power assembly 50, the worm 41 and the worm wheel 42 are driven to transmit, and then the locking plunger 30 and the locking tongue 31 are driven to move along the radial direction of the rotating shaft 20, so that the locking tongue 31 is switched among five positions: the first unlocking position, the second unlocking position, the locking position, the third unlocking position, and the fourth unlocking position. Of course, the above-mentioned power assembly 50 can be a motor.

[0072] It should be noted that in this embodiment, due to the adoption of the worm and worm wheel 41 structure, the noise of the rotary shift device is relatively small. At the same time, the worm 41 can easily drive the worm wheel to rotate, the structure is more delicate, and it is not easily damaged.

[0073] For the convenience of automatically realizing automatic control, the rotary shift device further includes a control module 60. The control module 60 is communicatively connected to the power assembly 50. The control module 60 is used to send a control instruction to the power assembly 50 according to the received current state of the vehicle, the brake signal, and the rotation angle of the rotating shaft 20 (or the gear state of the knob 10).

[0074] For example, when the vehicle starts normally from the parked state and the driver steps on the brake, the control module 60 receives the current starting state of the vehicle, the signal that the driver steps on the brake, and the rotation angle of the rotating shaft 20 is zero (the knob 10 is in the P gear). The control module 60 sends a first control instruction to the power assembly 50 to move the locking tongue 31 from the locking position to the second unlocking position, so that the knob 10 can rotate in the clockwise direction, so as to rotate from the P gear to the R gear; after the knob 10 rotates to the R gear, if the driver does not release the brake, the control module 60 receives the current starting state of the vehicle, the signal that the driver steps on the brake, and the rotation angle of the rotating shaft 20 is 22.5 degrees (the knob 10 is in the R gear). The control module 60 sends a second control instruction to the power assembly 50 to move the locking tongue 31 from the second unlocking position to the first unlocking position, so that the knob 10 can rotate to the P gear or the N gear. If the driver releases the brake, the control module 60 controls the locking tongue 31 to re-enter the locking position of the gear disk 21 to lock the knob 10.

[0075] To facilitate the knob-type shift device to meet different locking strategies for the N gear adopted in different countries and regions, the control module 60 is further configured to control the locking tongue 31 to be in the second unlocking position or the locking position when the knob 10 is in the neutral gear position and the driver releases the brake.

[0076] In this way, according to the regulatory requirements of some countries, after the knob 10 is turned to the N gear, if the driver releases the brake, the control module 60 moves the locking tongue 31 to the locking position, so that the knob 10 is locked and cannot be shifted to the R gear or the D gear. According to the regulatory requirements of China, after the knob 10 is turned to the N gear, if the driver releases the brake, the control module 60 moves the locking tongue 31 to the second unlocking position, so that the knob 10 can only be shifted to the D gear and cannot be shifted to the R gear. With such a setting, the knob-type shift device can meet different locking strategies for the N gear adopted in different countries and regions.

[0077] Certainly, the above control module 60 can be a PCB board provided below the rotating shaft 20.

[0078] In some embodiments, the knob-type shift device further includes an angle detection component 70. The angle detection component 70 is communicatively connected to the control module 60, and the angle detection component 70 is configured to detect the rotation angle of the rotating shaft 20.

[0079] Please refer to Figure 5 , the angle detection component 70 includes a Hall element 71 and a magnet 72. Among them, the magnet 72 is provided at the center position of the bottom of the rotating shaft 20. For example, an extension portion can be provided at the center position of the bottom of the rotating shaft 20, and the magnet 72 can be embedded in the extension portion. The Hall element 71 is installed on the PCB board located below the rotating shaft 20, and the Hall element 71 is disposed opposite to the magnet 72.

[0080] In this way, the Hall element 71 can sense the rotation angle of the rotating shaft 20 through the magnet 72 and output a signal to the PCB board. The PCB board can send a corresponding control command to the power component 50 according to the rotation angle of the rotating shaft 20, so that the locking tongue 31 is switched to the corresponding position.

[0081] For example, after the vehicle is normally started from the parked state and the driver steps on the brake, the control module 60 receives the current starting state of the vehicle, the signal that the driver steps on the brake, and the rotation angle of the rotating shaft 20 is zero (the knob 10 is in the P gear). The control module 60 sends a first control instruction to the power component 50 to move the locking tongue 31 from the locked position to the second unlocking position, so that the knob 10 can rotate in the clockwise direction and thus rotate from the P gear to the R gear. For another example, after the knob 10 is rotated to the R gear, if the driver does not release the brake, the control module 60 receives the current starting state of the vehicle, the signal that the driver steps on the brake, and the rotation angle of the rotating shaft 20 is 22.5 degrees (the knob 10 is in the R gear). The control module 60 sends a second control instruction to the power component 50 to move the locking tongue 31 from the second unlocking position to the first unlocking position, so that the knob 10 can rotate to the P gear or the N gear. If the driver releases the brake, the control module 60 controls the locking tongue 31 to re-enter the locked position of the gear disk 21 to lock the knob 10.

[0082] In some embodiments, the knob-type shift device further includes a displacement detection component 80. The displacement detection component 80 is communicatively connected to the control module 60, and the displacement detection component 80 is used to detect the displacement of the locking plunger 30.

[0083] Please refer to Figure 6 together. The displacement detection component 80 includes a grating 81 (optical grating) and a photoelectric sensor 82. Among them, the grating 81 (optical grating) is arranged at the bottom of the locking plunger 30, and the photoelectric sensor 82 is arranged on the PCB board.

[0084] It should be noted that the grating 81 (optical grating) is an optical element with periodic rulings. When the locking plunger 30 moves, the grating 81 moves accordingly, and the rulings will periodically block or allow light to pass through. The photoelectric sensor 82 on the PCB includes a light-emitting diode (LED) and a photosensitive receiver (such as a phototransistor). When the grating moves, the light is periodically blocked due to the ruling gaps, and the receiver will generate a pulse signal proportional to the displacement. By counting the number of pulses or analyzing the phase difference, the displacement amount of the locking plunger 30 can be accurately calculated.

[0085] In this way, after the locking plunger 30 moves to the target position under the control of the control module 60, the displacement detection component 80 will detect that the locking plunger 30 has moved to the target position and feedback the in-place signal of the locking plunger 30 to the control module for the control module 60 to control the power component 50 to stop driving the locking plunger 30 to move, which is beneficial to ensuring the accuracy of the position control of the locking tongue 31.

[0086] Please refer to Figure 12, the rotary shift device further includes a cover 90 which covers the outside of the rotating shaft 20, and the knob 10 is exposed from the cover 90; the cover 90 is provided with a plurality of indicating parts 91 in sequence along a preset straight line direction, and each indicating part 91 is communicatively connected to the control module 60, and each indicating part 91 is respectively used for emitting a display prompt corresponding to the gear position.

[0087] In this embodiment, the cover 90 is provided with a first indicating part, a second indicating part, a third indicating part and a fourth indicating part in sequence along a straight line direction, that is, the first indicating part, the second indicating part, the third indicating part and the fourth indicating part are arranged in a line. The first indicating part, the second indicating part, the third indicating part and the fourth indicating part are all communicatively connected to the control module 60. The first indicating part is used to indicate that the current gear position of the knob 10 is in the P gear, the second indicating part is used to indicate that the current gear position of the knob 10 is in the R gear, the third indicating part is used to indicate that the current gear position of the knob 10 is in the N gear, and the fourth indicating part is used to indicate that the current gear position of the knob 10 is in the D gear.

[0088] Of course, according to actual needs, the first indicating part, the second indicating part, the third indicating part and the fourth indicating part can all be LED indicator lights, and each LED indicator light can emit green light to indicate that the current knob 10 is in the corresponding gear position.

[0089] For example, after the vehicle stalls when the knob 10 is in the D gear state, if the driver does not step on the brake, by placing the locking tongue 31 in the locked position, the knob 10 is in the locked state, and the first indicating part indicates the gear accordingly; after the vehicle starts normally, if the driver steps on the brake, by placing the locking tongue 31 in the third unlocking position, the knob 10 can rotate in the clockwise direction, and the knob 10 can be rotated out from the P gear to the R gear, and the second indicating part indicates the gear accordingly.

[0090] Please refer to Figure 9 and Figure 10 , the rotary shift device further includes a mounting housing 100, the rotating shaft 20 is mounted in the mounting housing 100, and an internal gear ring 101 is provided inside the mounting housing 100; correspondingly, at least a pair of guiding components 22 protruding radially from the rotating shaft 20 are provided in the rotating shaft 20. The guiding component 22 includes a guiding sphere 221 (such as a ball) in contact with the gear ring 101 and a guiding elastic member 222 (such as a spring) abutted between the guiding sphere 221 and the rotating shaft 20.

[0091] In this embodiment, the number of the guiding components 22 is four, and the four guiding components 22 are evenly distributed in the same plane of the rotating shaft 20 along the circumferential direction.

[0092] In this way, the guiding sphere 221 under the action of the outward elastic force of the guiding elastic member 222 is supported on the inner wall of the gear ring 101. The guiding sphere 221 interacts with the inner wall of the gear ring 101 of the embedded housing 100 in a tactile guiding manner, thereby establishing a guided rotation of the knob 10 and the rotating shaft 20 relative to the inner edge of the embedded housing 100. In this way, the structure of the embedded housing 100 further provides a clear tactile perception for the knob-type shift device during the shifting process. And four guiding components 22 are arranged near the bottom of the rotating shaft 20, further preventing the rotating shaft 20 from shaking during the rotation process and ensuring the stability and reliability of the rotation process of the rotating shaft 20.

[0093] Please refer to Figure 7 and Figure 8 , a plurality of flexible ribs 102 are integrally arranged along the circumferential direction at the top of the embedded housing 100. The flexible ribs 102 protrude from the inner wall of the embedded housing 100 to prevent the rotating shaft 20 from shaking during the rotation process.

[0094] That is to say, four guiding components 22 are arranged at the position near the bottom of the rotating shaft 20 to ensure that the rotating shaft 20 does not shake during the rotation process. In addition, a plurality of flexible ribs 102 are integrally arranged along the circumferential direction at the position near the top of the embedded housing 100. The number of the flexible ribs 102 can also be set to four. The four flexible ribs 102 correspond to the four guiding components 22 one by one. During the rotation of the rotating shaft 20, the four flexible ribs 102 can deform to a certain extent by using their flexible characteristics and provide corresponding elastic forces to the rotating shaft 20 while deforming, thereby ensuring the centering of the rotating shaft 20 during the rotation process and preventing the rotating shaft 20 from shaking during the rotation process, resulting in unstable rotation.

[0095] Please refer to Figure 11 , the knob-type shift device further includes a carrier 110 and a bottom case 120. Among them, the control module 60, the power component 50 and the transmission component 40 can all be installed in the carrier 110. The bottom case 120 is connected to the carrier 110, and the carrier 110 is located between the bottom case 120 and the embedded housing 100.

[0096] A vehicle provided by the present application includes the knob-type shift device described in the above specific embodiment; other parts of the vehicle can refer to the related art and will not be elaborated herein.

[0097] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0098] The above has introduced in detail the knob-type shift device and the vehicle provided by the present application. Specific examples are used in this text to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the solution of the present application and its core idea. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A knob-type shifting device, comprising a knob, characterized in that: Also includes: A rotating shaft connected to the knob, wherein the rotating shaft is provided with a first locking tooth along a first circumference, and a second locking tooth along a second circumference that is concentric with the first circumference and located inside the first circumference, wherein the second locking tooth is staggered with the first locking tooth; A lock tongue moves along the radial direction of the rotating shaft and cooperates with the first lock tooth and the second lock tooth. The lock tongue has a first unlocking position, a second unlocking position, a locking position, a third unlocking position and a fourth unlocking position in sequence along the center direction close to the first circle or the second circle. The lock tongue is configured to lock the rotating shaft in the locking position, allow the rotating shaft to rotate unidirectionally in the second unlocking position or the third unlocking position, and allow the rotating shaft to rotate bidirectionally in the first unlocking position or the fourth unlocking position.

2. The knob type shift device according to claim 1, characterized in that: The knob type shifting device also includes: A transmission assembly, used for driving the locking tongue to move relative to the rotating shaft along the radial direction of the rotating shaft; A power assembly connected to the transmission assembly and used to drive the transmission assembly to operate; The control module is connected to the power assembly for sending control instructions to the power assembly according to the received current state of the vehicle, the brake signal and the rotation angle of the shaft.

3. The knob type shift device according to claim 2, characterized in that: The control module is also used for controlling the lock tongue to be in the second unlocking position or the locking position when the knob is in the neutral gear position and the driver releases the brake.

4. The knob type shift device according to claim 2, characterized in that: The knob-type shifting device further includes an angle detection component, which is communicatively connected to the control module and is used to detect the rotation angle of the rotating shaft.

5. The knob type shift device according to claim 2, characterized in that: The knob-type shifting device further includes a displacement detection component, which is communicatively connected to the control module and is used to detect the displacement of the locking tongue.

6. The knob type shift device according to claim 2, characterized in that: The knob-type shifting device further comprises a locking plunger, the locking tongue is integrally arranged on the locking plunger, and the locking plunger is provided with a rack; The transmission assembly includes a worm and a turbine. The worm is arranged on the power assembly and is transmission-connected with the turbine. The turbine is meshed with the rack.

7. The knob-type shifting device according to any one of claims 2 to 6, characterized in that: The knob-type shifting device further comprises a cover, the cover is arranged on the outside of the rotating shaft, and the knob is exposed from the cover; The cover is provided with a plurality of indicating parts in sequence along a preset straight line direction, each indicating part is communicatively connected with the control module, and each indicating part is used to issue a display prompt of a corresponding gear position.

8. The knob-type shift device according to any one of claims 1 to 6, characterized in that: The knob-type shifting device further comprises an embedded housing, the rotating shaft is embedded in the embedded housing, and a gear ring is provided inside the embedded housing; The rotating shaft is provided with at least one pair of guide components radially protruding from the rotating shaft, and the guide components include a guide ball contacting and abutting against the gear ring and a guide elastic member abutting between the guide ball and the rotating shaft.

9. The knob type shift device according to claim 8, characterized in that: A plurality of flexible ribs are integrally arranged on the top of the embedded shell along the circumferential direction, and the flexible ribs protrude from the inner wall of the embedded shell to prevent the rotating shaft from shaking during the rotation process.

10. A vehicle, characterized in that: It comprises a knob-type shifting device as described in any one of claims 1 to 9.

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