Knob type gear shifting device and vehicle

Abstract

The utility model 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] The present application relates to the technical field of knob shifters, and particularly relates to a knob shifter and a vehicle. BACKGROUND

[0002] At present, with the development of vehicle technology, knob shifters are rapidly popularized. The knob shifter is used for vehicle shifting operation, and can be rotated from a park (P) gear to a reverse (R) gear, a neutral (N) gear and a drive (D) gear in a clockwise direction. However, the current knob shifter at least has the following problems:

[0003] Firstly, the knob of the current knob shifter needs to be rotated back to the P gear when the vehicle is turned off, and the physical back rotation of the knob produces noise / hysteresis and causes mechanical wear, thereby causing a risk of jamming.

[0004] Secondly, the knob shifter requires self-locking function in each gear of P, R, N and D, and the current knob shifter cannot meet different locking strategies for some gears in different countries and regions. CONTENT OF THE INVENTION

[0005] The present application aims to provide a knob shifter and a vehicle, and solves the problems of noise produced by the back rotation of the knob of the current knob shifter, mechanical wear caused by the back rotation of the knob, and the inability to meet different locking strategies for some gears in different countries and regions.

[0006] To achieve the above-mentioned purpose, the present application provides a knob shifter, which comprises a knob and further comprises:

[0007] a rotating shaft connected with the knob, the rotating shaft being provided with first locking teeth along a first circumference and second locking teeth along a second circumference concentric with the first circumference and located on an inner side of the first circumference, the second locking teeth being staggered with the first locking teeth;

[0008] a locking tongue moving in a radial direction of the rotating shaft and cooperating with the first locking teeth and the second locking teeth, the locking tongue sequentially having a first unlocking position, a second unlocking position, a locking position, a third unlocking position and a fourth unlocking position in a direction of a center of the first circumference or the second circumference, the locking tongue being configured to lock the rotating shaft at the locking position, allow one-way rotation of the rotating shaft at the second unlocking position or the third unlocking position, and allow two-way rotation of the rotating shaft at the first unlocking position or the fourth unlocking position.

[0009] In some embodiments, the knob shifter further comprises:

[0010] a transmission assembly for moving the locking tongue relative to the rotating shaft in the radial direction of the rotating shaft;

[0011] The power assembly is connected with the transmission assembly and used to drive the transmission assembly to operate;

[0012] The control module is connected with the power assembly in communication and used to send a control instruction to the power assembly according to the received current state of the vehicle, the brake signal and the rotation angle of the rotating shaft.

[0013] In some embodiments, the control module is further used to control the locking 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 gear shifting device further comprises an angle detection assembly connected with the control module in communication, and the angle detection assembly is used to detect the rotation angle of the rotating shaft.

[0015] In some embodiments, the knob-type gear shifting device further comprises a displacement detection assembly connected with the control module in communication, and the displacement detection assembly is used to detect the displacement of the locking tongue.

[0016] In some embodiments, the knob-type gear shifting device further comprises a locking plunger, and the locking tongue is integrally arranged on the locking plunger, and the locking plunger is provided with a rack;

[0017] The transmission assembly comprises a worm and a worm wheel, the worm is arranged on the power assembly and in transmission connection with the worm wheel, and the worm wheel is in meshing connection with the rack.

[0018] In some embodiments, the knob-type gear 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.

[0019] The cover is provided with a plurality of indication portions in sequence along a preset straight line direction, each indication portion is connected with the control module in communication, and each indication portion is used to send a display prompt of a corresponding gear.

[0020] In some embodiments, the knob-type gear shifting device further comprises an embedding shell, the rotating shaft is embedded in the embedding shell, and the inside of the embedding shell is provided with a gear ring.

[0021] At least one pair of guide assemblies protruding radially from the rotating shaft are arranged in the rotating shaft, the guide assemblies comprise a guide ball in contact with the gear ring and a guide elastic member abutting between the guide ball and the rotating shaft.

[0022] In some embodiments, the top of the embedding shell is integrally provided with a plurality of flexible ribs in the circumferential direction, the flexible ribs protrude from the inner wall of the embedding shell to prevent the rotating shaft from shaking during rotation.

[0023] The application further provides a vehicle comprising the knob-type gear shifting device.

[0024] With respect to the above background art, the knob-type gear shifting device provided by the embodiments of the present application comprises a knob, a rotating shaft and a lock tongue. The rotating shaft is connected with the knob, the rotating shaft is provided with first lock teeth along a first circumference and second lock teeth along a second circumference, the second circumference is concentric with the first circumference, the second circumference is located on the inner side of the first circumference, the second lock teeth are arranged alternately with the first lock teeth, the lock tongue is movable along the radial direction of the rotating shaft and cooperates with the first lock teeth and the second lock teeth, and the lock tongue has, in sequence along the direction of the center of the first circumference or the second circumference, a first unlocking position, a second unlocking position, a locking position, a third unlocking position and a fourth unlocking position.

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

[0026] The knob-type gear shifting device thus arranged has the following beneficial effects:

[0027] Firstly, for the engine shutdown of the vehicle when the knob is in any gear position, the knob is placed in the locking state by placing the lock tongue in the locking position, for example, when the vehicle is shut down with the knob in the D gear position, if the driver does not step on the brake, the knob is placed in the locking state by placing the lock tongue in the locking position, at this time, the knob cannot be rotated. After the vehicle is started normally, the driver steps on the brake, and the knob can be rotated in the clockwise direction by placing the lock tongue in the second unlocking position, 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 position, the knob is placed in the locking state by placing the lock tongue in the locking position, so as to ensure that the next time the knob is started, the knob can start from the P gear. Compared with the traditional vehicle, the knob does not need to be mechanically rotated, avoiding the noise / hysteresis caused by the physical return of the knob and the mechanical wear caused by the knob.

[0028] Secondly, according to the regulations of some countries, if the driver releases the brake after the knob is rotated to the N gear position, the knob needs to be locked and cannot be rotated to the R gear or the D gear. However, according to the regulations of China, if the driver releases the brake after the knob is rotated to the N gear position, the knob can only be rotated to the D gear and cannot be rotated to the R gear. Based on this, according to the regulations of some countries, if the driver releases the brake after the knob is rotated to the N gear position, the knob is locked by placing the lock tongue in the locking position and cannot be rotated to the R gear or the D gear. According to the regulations of China, if the driver releases the brake after the knob is rotated to the N gear position, the knob can only be rotated to the D gear by placing the lock tongue in the second unlocking position and cannot be rotated to the R gear. In this way, the knob-type gear shifting device can meet the different locking strategies for the N gear position in different countries and regions.

[0029] Thirdly, after the vehicle is turned off, the lock is locked by setting the lock tongue in the locking position; after the vehicle is started normally and the driver steps on the brake, the knob can be rotated in the clockwise direction by setting the lock 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 setting the lock tongue in the first unlocking position; after the driver steps on the brake in the N gear, the knob can be operated randomly by setting the lock tongue in the first unlocking position; after the knob is rotated to the D gear, no matter whether the driver steps on the brake or not, the knob can only be rotated to the N gear by setting the lock tongue in the second unlocking position; after the vehicle is turned off when the knob is in the D gear state, if the driver does not step on the brake, the knob is in the locked state by setting the lock tongue in the locking position; after the vehicle is started normally, if the driver steps on the brake, the knob can be rotated in the clockwise direction by setting the lock tongue in the third unlocking position, and the knob can be rotated 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 setting the lock tongue in the fourth unlocking position; after the driver steps on the brake in the N gear, the knob can be operated randomly by setting the lock tongue in the fourth unlocking position; after the knob is rotated to the D gear, no matter whether the driver steps on the brake or not, the knob can only be rotated to the N gear by setting the lock tongue in the third unlocking position. In this way, the knob and the rotating shaft can be rotated within a range of 360°, and the lock tongue realizes different unlocking and locking functions in different positions. BRIEF DESCRIPTION OF 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 needed to be used in the embodiments or the related art description. Obviously, the drawings in the following description are only the embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of the provided drawings.

[0031] Figure 1 It is an exploded view of the knob-type gear shifting device in the embodiments of the present application;

[0032] Figure 2 It is a matching schematic view of the rotating shaft and the locking plunger in the knob-type gear shifting device in the embodiments of the present application;

[0033] Figure 3 It is a locking and unlocking schematic view of the lock tongue in different positions in the knob-type gear shifting device in the embodiments of the present application;

[0034] Figure 4 It is an assembly schematic view of the power assembly, the transmission assembly, the locking plunger and the rotating shaft in the knob-type gear shifting device in the embodiments of the present application;

[0035] Figure 5 It is a matching schematic view of the Hall element and the magnet in the knob-type gear shifting device in the embodiments of the present application;

[0036] Figure 6 A sectional view of the knob-type gear shifting device in the embodiment of the present application;

[0037] Figure 7 A top structure schematic diagram of the embedded housing of the knob-type gear shifting device in the embodiment of the present application;

[0038] Figure 8 A sectional view of the knob-type gear shifting device in the embodiment of the present application; Figure 7 A zoomed-in schematic diagram of part A in the embodiment of the present application;

[0039] Figure 9 A sectional view of the knob-type gear shifting device in the embodiment of the present application;

[0040] Figure 10 A top view of part B in the embodiment of the present application; Figure 9

[0041] A top view of part B in the embodiment of the present application; Figure 11 A schematic diagram of the assembly of the embedded housing, the bearing frame and the bottom shell in the knob-type gear shifting device in the embodiment of the present application;

[0042] Figure 12 A schematic diagram of the overall structure of the knob-type gear shifting device in the embodiment of the present application.

[0043] Wherein:

[0044] 10 - knob;

[0045] 20 - rotating shaft, 21 - gear disc, 211 - first locking tooth, 212 - second locking tooth, 22 - guide assembly, 221 - guide ball, 222 - guide elastic member;

[0046] 30 - locking plunger, 31 - locking tongue, 32 - gear rack;

[0047] 40 - transmission assembly, 41 - worm, 42 - worm gear;

[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 - gear ring, 102 - flexible rib;

[0054] 110 - bearing frame;

[0055] 120 - bottom case. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be apparently and completely described below with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0057] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below with the drawings and specific embodiments.

[0058] Please refer to Figure 1 , Figure 2 and Figure 12 The knob-type gear shifting device provided by the embodiments of the present application comprises a knob 10, a rotating shaft 20 and a lock tongue 31.

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

[0060] The rotating shaft 20 is connected with the knob 10, and the end of the rotating shaft 20 away from the knob 10 is provided with a gear disc 21. Specifically, the rotating shaft 20 is provided with first lock teeth 211 along a first circumference, and is provided with second lock teeth 212 along a second circumference. The second circumference is concentric with the first circumference, and the second circumference is located on the inner side of the first circumference. The second lock teeth 212 are arranged alternately with the first lock teeth 211.

[0061] The lock tongue 31 is movable in the radial direction of the rotating shaft 20, and cooperates with the first lock teeth 211 and the second lock teeth 212. The lock tongue 31 has a first unlocking position, a second unlocking position, a locking position, a third unlocking position and a fourth unlocking position in turn along the direction of the center of the first circumference or the second circumference.

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

[0063] The knob-type gear shifting device thus arranged, the knob 10 and the rotating shaft 20 can rotate within a range of 360°, and the lock tongue 31 realizes different unlocking and locking functions in different positions.

[0064] Specifically, please refer to Figure 3 After the vehicle is turned off, the knob 10 is locked by placing the lock tongue 31 in the locking position; after the vehicle is normally started and the driver steps on the brake, the knob 10 can be rotated in the clockwise direction to rotate from the P gear to the R gear by placing the lock tongue 31 in the second unlocking position; 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 lock tongue 31 in the first unlocking position, and if the driver releases the brake, the lock tongue 31 will re-enter the locking 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 lock tongue 31 in the locking position, and cannot be rotated to the R gear or the D gear, and according to the regulations of China, after the knob 10 is rotated to the N gear, if the driver releases the brake, the knob 10 can only be rotated to the D gear by placing the lock tongue 31 in the second unlocking position, and cannot be rotated to the R gear; after the driver steps on the brake in the N gear, the knob 10 can be operated arbitrarily by placing the lock tongue 31 in the first unlocking position; after the knob 10 is rotated to the D gear, no matter whether the driver steps on the brake or not, the knob 10 can only be rotated to the N gear by placing the lock 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 lock tongue 31 in the locking position; after the vehicle is normally started, if the driver steps on the brake, the knob 10 can be rotated in the clockwise direction by placing the lock tongue 31 in the third unlocking position, and the knob 10 can be rotated 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 lock tongue 31 in the fourth unlocking position, and if the driver releases the brake, the lock tongue 31 will re-enter the locking 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 lock tongue 31 in the locking position, and cannot be rotated to the R gear or the D gear, and according to the regulations of China, after the knob 10 is rotated to the N gear, if the driver releases the brake, the knob 10 can only be rotated to the D gear by placing the lock tongue 31 in the third unlocking position, and cannot be rotated to the R gear; after the driver steps on the brake in the N gear, the knob 10 can be operated arbitrarily by placing the lock tongue 31 in the fourth unlocking position; after the knob 10 is rotated to the D gear, no matter whether the driver steps on the brake or not, the knob 10 can only be rotated to the N gear by placing the lock tongue 31 in the third unlocking position.

[0065] It needs to be emphasized that, for the vehicle to be turned off when the knob 10 is in any gear state, the lock tongue 31 is placed in the locking position, so that the knob 10 is in the locked state, for example, when 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 lock tongue 31 is placed in the locking position, so that the knob 10 is in the locked state, at this time the knob 10 cannot be rotated. After the vehicle is started normally, the driver steps on the brake, and the lock tongue 31 is placed in the second unlocking position, so that the knob 10 can be rotated 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 10 in the non-P gear state, the lock tongue 31 is placed in the locking position, so that the knob 10 is in the locked state, to ensure that the next time the knob 10 is started from the P gear, compared with the traditional vehicle, the knob 10 does not need to be mechanically rotated, avoiding noise / hysteresis caused by physical return of the knob 10, and mechanical wear will also be caused.

[0066] In addition, 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 needs to be locked, and the knob 10 cannot go to the R gear or the D gear, and according to the regulations of China, 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. Based on this, according to the regulations of some countries, after the knob 10 is rotated to the N gear, if the driver releases the brake, the lock tongue 31 is placed in the locking position, so that the knob 10 is locked and cannot go to the R gear or the D gear, and according to the regulations of China, after the knob 10 is rotated to the N gear, if the driver releases the brake, the lock tongue 31 is placed in the second unlocking position, so that the knob 10 can only go to the D gear, and cannot go to the R gear. In this way, the knob type gear shifting device can meet the different locking strategies adopted by different countries and regions for the N gear.

[0067] Of course, according to actual needs, the number of the first lock teeth 211 of the first circumference and the number of the second lock teeth 212 of the second circumference are the same, and are at least one.

[0068] For example, taking the number of the first lock teeth 211 of the first circumference and the number of the second lock teeth 212 of the second circumference as eight as an example, eight first lock teeth 211 are uniformly arranged along the outer circle, and eight second lock teeth 212 are uniformly arranged along the inner circle, and on this basis, the so-called second lock teeth 212 are arranged alternately with the first lock teeth 211 means that any second lock tooth 212 is arranged at the gap position inside between two adjacent first lock teeth 211. In this way, the angle between any adjacent first lock tooth 211 and second lock tooth 212 is 22.5 degrees, and when the knob 10 is rotated by 22.5 degrees, the knob 10 is switched to the next gear accordingly.

[0069] Please see Figure 4, the knob type gear shifting device further comprises a transmission assembly 40 and a power assembly 50, wherein the transmission assembly 40 is used to drive the lock tongue 31 to move along the radial direction of the rotating shaft 20 relative to the rotating shaft 20; the power assembly 50 is connected with the transmission assembly 40, and the power assembly 50 is used to drive the transmission assembly 40 to operate.

[0070] In the embodiment, the knob type gear shifting device further comprises a locking plunger 30, the lock tongue 31 is integrally arranged on the locking plunger 30, and the locking plunger 30 is provided with a rack 32. Further, the transmission assembly 40 comprises a worm 41 and a worm wheel 42, the worm 41 is arranged on the power assembly 50 and is in transmission connection with the worm wheel 42, and a corresponding gear wheel can be arranged on the worm wheel 42, which can be in meshing connection 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 operate, and then the locking plunger 30 and the lock tongue 31 are driven to move along the radial direction of the rotating shaft 20, so that the lock tongue 31 is switched among the first unlocking position, the second unlocking position, the locking position, the third unlocking position and the fourth unlocking position. Of course, the power assembly 50 can be an electric motor.

[0072] It should be noted that, in the embodiment, the worm and worm wheel 41 structure is adopted, so that the noise of the knob type gear shifting device is small, and the worm 41 can easily drive the worm wheel to rotate, and the structure is more delicate and will not be easily damaged.

[0073] In order to automatically realize automatic control, the knob type gear shifting device further comprises a control module 60, the control module 60 is in communication connection with the power assembly 50, and the control module 60 is used to send a control instruction to the power assembly 50 according to the 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) received.

[0074] For example, after the vehicle is normally started from the parking state and the driver steps on the brake, the control module 60 receives the current starting state of the vehicle, the brake signal stepped on by the driver and the rotation angle of the rotating shaft 20 (the knob 10 is in the P gear), and sends a first control instruction to the power assembly 50, so that the lock tongue 31 moves from the locking position to the second unlocking position, so that the knob 10 can be rotated in the clockwise direction, 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 control module 60 receives the current starting state of the vehicle, the brake signal stepped on by the driver and the rotation angle of the rotating shaft 20 (the knob 10 is in the R gear), and sends a second control instruction to the power assembly 50, so that the lock tongue 31 moves from the second unlocking position to the first unlocking position, so that the knob 10 can be rotated to the P gear or the N gear, and if the driver releases the brake, the control module 60 controls the lock tongue 31 to re-enter the locking position of the gear disc 21, so as to lock the knob 10.

[0075] In order to make the rotary knob gear shifting device meet different locking strategies of N gear in different countries and regions, the control module 60 is further configured to control the lock tongue 31 to be in the second unlocking position or the locking position when the rotary knob 10 is in the neutral gear and the driver releases the brake.

[0076] In this way, according to the regulations of some countries, if the driver releases the brake after the rotary knob 10 is rotated to the N gear, the control module 60 moves the lock tongue 31 to the locking position so that the rotary knob 10 is locked and cannot be rotated to the R gear or the D gear. According to the regulations of China, if the driver releases the brake after the rotary knob 10 is rotated to the N gear, the control module 60 moves the lock tongue 31 to the second unlocking position so that the rotary knob 10 can only be rotated to the D gear and cannot be rotated to the R gear. In this way, the rotary knob gear shifting device can meet different locking strategies of N gear in different countries and regions.

[0077] Of course, the control module 60 described above can be a PCB board arranged below the rotating shaft 20.

[0078] In some embodiments, the rotary knob gear shifting device further comprises an angle detection assembly 70, which is in communication with the control module 60. The angle detection assembly 70 is configured to detect the rotation angle of the rotating shaft 20.

[0079] Please refer to Figure 5 The angle detection assembly 70 comprises a Hall element 71 and a magnet 72. The magnet 72 is arranged at the center of the bottom of the rotating shaft 20. For example, an extension can be arranged at the center of the bottom of the rotating shaft 20, and the magnet 72 can be embedded in the extension. The Hall element 71 is mounted on the PCB board below the rotating shaft 20, and the Hall element 71 is arranged 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 instruction to the power assembly 50 according to the rotation angle of the rotating shaft 20, so that the lock tongue 31 is switched to the corresponding position.

[0081] For example, after the vehicle is normally started from the parking 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), and the control module 60 sends the first control instruction to the power assembly 50, so that the locking tongue 31 moves from the locking position to the second unlocking position, so that the knob 10 can be rotated in the clockwise direction, and thus the knob 10 is rotated 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), and the control module 60 sends the second control instruction to the power assembly 50, so that the locking tongue 31 moves from the second unlocking position to the first unlocking position, so that the knob 10 can be rotated to the P gear or the N gear, and if the driver releases the brake, the control module 60 controls the locking tongue 31 to re-enter the locking position of the gear disc 21, so that the knob 10 is locked.

[0082] In some embodiments, the knob-type gear shifting device further comprises a displacement detection assembly 80, which is in communication with the control module 60, and is used for detecting the displacement of the locking plunger 30.

[0083] Please refer to Figure 6 , the displacement detection assembly 80 comprises a grid 81 (optical grating) and a photoelectric sensor 82, wherein the grid 81 (optical grating) is arranged at the bottom of the locking plunger 30, and the photoelectric sensor 82 is arranged on the PCB.

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

[0085] In this way, when the locking plunger 30 moves to the target position under the control of the control module 60, the displacement detection assembly 80 will detect that the locking plunger 30 has moved to the target position, and will feed back the signal that the locking plunger 30 has arrived to the control module, so that the control module 60 controls the power assembly 50 to stop driving the locking plunger 30 to move, which is beneficial to ensure the accuracy of the position control of the locking tongue 31.

[0086] Please refer to Figure 12The knob-type gear shifting device further comprises a cover 90 covering the outside of the rotating shaft 20, and the knob 10 is exposed from the cover 90. The cover 90 is sequentially provided with a plurality of indication portions 91 along a preset straight line direction, each indication portion 91 is communicatively connected with the control module 60, and each indication portion 91 is used for issuing a display prompt of a corresponding gear position.

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

[0088] Of course, according to actual needs, the first indication portion, the second indication portion, the third indication portion and the fourth indication portion can all be LED indication lamps, and each LED indication lamp can emit green light to indicate that the current knob 10 is in a corresponding gear position.

[0089] For example, 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 locking state by placing the locking tongue 31 in the locking position, and the first indication portion indicates the gear; after the vehicle is normally started, if the driver steps on the brake, the knob 10 can be rotated in the clockwise direction by placing the locking tongue 31 in the third unlocking position, the knob 10 can be rotated out from the P gear to the R gear, and the second indication portion indicates the gear.

[0090] Please refer to Figure 9 and Figure 10 The knob-type gear shifting device further comprises an embedded shell 100, the rotating shaft 20 is embedded in the embedded shell 100, and the inside of the embedded shell 100 is provided with a gear ring 101; correspondingly, the rotating shaft 20 is provided with at least one pair of guide assemblies 22 protruding radially from the rotating shaft 20, the guide assembly 22 comprises a guide ball 221 (such as a ball bearing) in contact with the gear ring 101 and a guide elastic member 222 (such as a spring) abutting between the guide ball 221 and the rotating shaft 20.

[0091] In the embodiment, the number of the guide assemblies 22 is four, and the four guide assemblies 22 are uniformly distributed in the same plane of the rotating shaft 20 along the circumferential direction.

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

[0093] Please refer to Figure 7 and Figure 8 , the top of the embedded shell 100 is integrally provided with a plurality of flexible ribs 102 in the circumferential direction, and the flexible ribs 102 protrude from the inner wall of the embedded shell 100 to prevent the rotating shaft 20 from shaking during rotation.

[0094] That is, on the basis of arranging four guide assemblies 22 near the bottom of the rotating shaft 20 to ensure that the rotating shaft 20 does not shake during rotation, a plurality of flexible ribs 102 are integrally arranged in the circumferential direction near the top of the embedded shell 100, and the number of flexible ribs 102 can also be four. The four flexible ribs 102 correspond one-to-one to the four guide assemblies 22, and during rotation of the rotating shaft 20, the four flexible ribs 102 can deform to a certain extent by virtue of their flexibility, and at the same time provide corresponding elastic force to the rotating shaft 20, thereby ensuring the centering of the rotating shaft 20 during rotation, preventing the rotating shaft 20 from shaking during rotation and causing unstable rotation.

[0095] Please refer to Figure 11 , the knob-type gear shifting device further comprises a carrier 110 and a bottom shell 120, wherein the control module 60, the power assembly 50 and the transmission assembly 40 can be installed in the carrier 110, the bottom shell 120 is connected with the carrier 110, and the carrier 110 is located between the bottom shell 120 and the embedded shell 100.

[0096] The vehicle provided in the present application comprises the knob-type gear shifting device described in the specific embodiments; other parts of the vehicle can refer to related technologies, which will not be expanded herein.

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

[0098] The knob type gear shifting device and the vehicle provided by the present application are described in detail above. The principles and implementation manners of the present application are described by applying specific examples in this paper, and the above description of the examples is only used to help understand the scheme of the present application and its core idea. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A rotary knob shift device comprising a rotary knob, characterized in that, Also comprising: a rotating shaft connected with the knob, the rotating shaft being provided with first locking teeth along a first circumference and second locking teeth along a second circumference concentric with the first circumference and located inside the first circumference, the second locking teeth being staggered with the first locking teeth; a locking tongue moving along the radial direction of the rotating shaft and cooperating with the first locking teeth and the second locking teeth, the locking tongue sequentially having a first unlocking position, a second unlocking position, a locking position, a third unlocking position and a fourth unlocking position along the direction of the center of the first circumference or the second circumference, the locking tongue being configured to lock the rotating shaft at the locking position, allow one-way rotation of the rotating shaft at the second unlocking position or the third unlocking position, and allow two-way rotation of the rotating shaft at the first unlocking position or the fourth unlocking position.

2. The rotary knob shift device of claim 1, wherein, The knob-type gear shifting device further comprises: a transmission assembly for moving the locking tongue along the radial direction of the rotating shaft relative to the rotating shaft; a power assembly connected with the transmission assembly for driving the transmission assembly to operate; a control module in communication with 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.

3. The knob shift device of claim 2, wherein, The control module is further configured to control the locking tongue to be at the second unlocking position or the locking position when the knob is in the neutral gear and the driver releases the brake.

4. The knob shift device of claim 2, wherein, The knob-type gear shifting device further comprises an angle detection assembly in communication with the control module, the angle detection assembly being configured to detect the rotation angle of the rotating shaft.

5. The knob shift device of claim 2, wherein, The knob-type gear shifting device further comprises a displacement detection assembly in communication with the control module, the displacement detection assembly being configured to detect the displacement of the locking tongue.

6. The knob shift device of claim 2, wherein, The knob-type gear shifting device further comprises a locking plunger, the locking tongue being integrally provided in the locking plunger, the locking plunger being provided with a rack; The transmission assembly comprises a worm and a worm wheel, the worm being provided in the power assembly and in transmission connection with the worm wheel, the worm wheel being in meshing connection with the rack.

7. A rotary knob shift device according to any one of claims 2-6, characterized in that The knob-type gear shifting device further comprises a cover, the cover being provided outside the rotating shaft, the knob being exposed from the cover; The cover is sequentially provided with a plurality of indication portions along a predetermined straight line direction, each indication portion being in communication with the control module, each indication portion being configured to issue a display prompt corresponding to a gear position.

8. The rotary knob shift device of any one of claims 1-6, wherein, The knob-type gear shifting device further comprises an embedded housing, the rotating shaft being embedded in the embedded housing, the embedded housing being provided with a gear ring inside; The rotating shaft is provided with at least one pair of guide assemblies protruding radially from the rotating shaft, the guide assemblies comprising a guide ball in contact with the gear ring and a guide elastic member abutting between the guide ball and the rotating shaft.

9. The knob shift device of claim 8, wherein, The top of the embedded housing is integrally provided with a plurality of flexible ribs in the circumferential direction, the flexible ribs protruding from the inner wall of the embedded housing to prevent the rotating shaft from shaking during rotation.

10. A vehicle characterized by comprising: The knob-type gear shifting device comprises any one of claims 1-9.

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