A push-type shifting mechanism and system

Abstract

The present invention discloses a push-type shifting mechanism for a by-wire shifting vehicle, which comprises a shift lever assembly and a base assembly. The shift lever assembly is slidably mounted on the base assembly. The shift lever assembly includes a lever body and a first magnetic element fixed to the lever body. The base assembly includes a seat body and a second magnetic element fixed to the seat body. A magnetic force is generated between the first magnetic element and the second magnetic element, so that the shift lever assembly slides relative to the base assembly under the action of an external force to achieve shifting, and returns to the initial position due to the magnetic force between the first magnetic element and the second magnetic element after the external force is eliminated. The present invention also discloses a push-type shifting system, which includes the push-type shifting mechanism as described above and a detection device. The detection device detects the position of the first magnetic element through a Hall sensor.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, and particularly to a push-type shifting mechanism and system. Background Art

[0002] With the development of passenger vehicle technology, the performance of automobiles has become increasingly superior, and the performance and functions of automotive products and components have also become increasingly mature. Lightweight and simplicity have become new goals for the design and development of automotive components. Achieving better performance through simple structural design has become a more highly regarded technical requirement nowadays.

[0003] The shifter has gone through the changes from manual shifting, automatic shifting, electronic shifting to wire-controlled shifting. Existing wire-controlled shifters on the market include rod type, knob, push button and key type, etc. There are existing solutions with a reset function for the above-mentioned shifters. However, the existing reset functions are all realized through the mechanical reset structure of bullet heads, springs and gear slots, which generate relatively large noise during shifting, and have large size, complex structure, high cost, and mechanical wear after long-term use, which affects the performance.

[0004] The foregoing description is provided to give general background information and does not necessarily constitute prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide a push-type shifting mechanism and system with a reset function and low reset noise.

[0006] The present invention provides a push-type shifting mechanism for a wire-controlled shifting vehicle, including a shift lever assembly and a base assembly. The shift lever assembly is slidably installed on the base assembly. The shift lever assembly includes a lever body and a first magnetic element fixed to the lever body. The base assembly includes a seat body and a second magnetic element fixed to the seat body. A magnetic force is generated between the first magnetic element and the second magnetic element, so that the shift lever assembly slides relative to the base assembly under the action of an external force to realize shifting, and returns to the initial position due to the magnetic force between the first magnetic element and the second magnetic element after the external force is eliminated.

[0007] Further, the first magnetic element and the second magnetic element are arranged horizontally along the sliding direction of the shift lever assembly, and the polarities of the opposite magnetic poles of the first magnetic element and the second magnetic element are the same, so that the shift lever assembly returns to the initial position due to the repulsive force between the first magnetic element and the second magnetic element after sliding relative to the base assembly.

[0008] Further, the first magnetic element is located on the second magnetic element. The first magnetic element and the second magnetic element are vertically arranged along the sliding direction of the shift lever assembly. Moreover, the corresponding positions of the first magnetic element and the second magnetic element have opposite polarities in the initial position, such that after the shift lever assembly slides relative to the base assembly, it moves back to the initial position due to the suction force between the first magnetic element and the second magnetic element.

[0009] Further, the rod body includes a first sliding piece provided at the bottom, and the first magnetic element is fixed to the first sliding piece, enabling the first magnetic element to drive the rod body to move.

[0010] Further, the rod body further includes a second sliding piece, which is slidably mounted on the first sliding piece. The second sliding piece is provided with a third magnetic element, and the corresponding positions of the first magnetic element and the third magnetic element have opposite polarities in the initial position; the seat body is correspondingly provided with a front limiting block and / or a rear limiting block for limiting the second sliding piece opposite to the second sliding piece. After the first sliding piece drives the second sliding piece to slide to the front limiting block and / or the rear limiting block due to the suction force between the first magnetic element and the third magnetic element, the first sliding piece can continue to slide forward. When sliding back, the first magnetic element is first driven by the suction force of the third magnetic element to make the first magnetic element flush with the third magnetic element, and then the first magnetic element and the third magnetic element are driven back to the initial position by the suction force of the second magnetic element.

[0011] Further, the first magnetic element, the third magnetic element, and the second magnetic element each include two magnets with opposite polarities arranged to form two magnet groups. When the shift lever assembly returns, in addition to the suction force between the same magnet groups among the first magnetic element, the third magnetic element, and the second magnetic element, there is also a repulsive force between different magnet groups.

[0012] Further, the first magnetic element, the second magnetic element, and the third magnetic element are all vertically arranged along the sliding direction of the shift lever assembly.

[0013] Further, a limiting groove is provided on the seat body. The shift lever assembly further includes a bearing group, which includes at least one bearing. The inner ring of the bearing is fixed on the rod body, and the outer ring of the bearing is installed in the limiting groove by interference fit, such that the shift lever assembly can only slide horizontally on the base assembly.

[0014] The present invention also provides a push - type shift system, which includes the push - type shift mechanism and a detection device as described above. The detection device detects the position of the first magnetic element through a Hall sensor. The positions of the first magnetic element include an initial position, a front first position, and a rear first position. When the position of the first magnetic element reaches the front first position, shift forward by one gear; when the position of the first magnetic element reaches the rear first position, shift backward by one gear.

[0015] The present invention also provides a push - type shift system, which includes the push - type shift mechanism and a detection device as described above. The detection device detects the position of the first magnetic element through a Hall sensor. The positions of the first magnetic element include an initial position, a front first position, a front second position, a rear first position, and a rear second position. When the position of the first magnetic element reaches the front first position, shift forward by one gear; when the position of the first magnetic element reaches the front second position, shift forward by two gears; when the position of the first magnetic element reaches the rear first position, shift backward by one gear; when the position of the first magnetic element reaches the rear second position, shift backward by two gears.

[0016] The push - type shift mechanism and system provided by the present invention provide shift feel and automatic reset through the magnetic force between multiple magnetic elements. The structure is simple, without mechanical wear, low in cost, low in noise, and long in service life. The sliding of the shift lever is realized through a bearing group, reducing the shift space, simplifying the structure of the shift mechanism, enhancing lightweight, and reducing costs. Through the relative sliding between multiple sets of sliding plates and multiple sets of magnets on the sliding plates, more gear positions can be added, making the shift function of the shift mechanism more abundant. Also, by arranging multiple magnets on each sliding plate, the magnetic force received by the sliding plate at different positions is different, that is, the shift force is different, improving the shift experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three - dimensional schematic diagram of the push - type shift mechanism according to the first embodiment of the present invention;

[0018] Figure 2 is Figure 1 a cross - sectional view of the side of the push - type shift mechanism;

[0019] Figure 3 is Figure 1 a three - dimensional schematic diagram of the shift lever assembly in the push - type shift mechanism;

[0020] Figure 4 is Figure 2 a partially enlarged schematic diagram of the push - type shift mechanism when the shift lever assembly is in the initial position;

[0021] Figure 5 is Figure 2A partially enlarged schematic diagram of the push-type shift mechanism when the shift lever assembly is in the front first position;

[0022] Figure 6 for Figure 2 A partially enlarged schematic diagram of the push-type shift mechanism when the shift lever assembly is located in the first front-back position;

[0023] Figure 7 for Figure 6 A schematic diagram of the positions of the first magnetic element, the third magnetic element, and the second magnetic element of the push-type shift mechanism when the first sliding plate and the second sliding plate are arranged in another manner;

[0024] Figure 8 It is a partially enlarged cross-sectional schematic diagram of the horizontal push type shift mechanism according to the second embodiment of the present invention when the shift lever assembly is in the initial position;

[0025] Figure 9 for Figure 8 A partially enlarged cross-sectional schematic diagram of the push-type shift mechanism when the first magnetic element and the second magnetic element are arranged in another manner;

[0026] Figure 10 for Figure 8 A partially enlarged cross-sectional schematic diagram of the push-type shift mechanism when the first magnetic element and the second magnetic element are arranged in another manner. DETAILED DESCRIPTION

[0027] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] First embodiment

[0029] Please refer to Figures 1 to 7 A first embodiment of the present invention provides a push-type shift mechanism for a shift-by-wire vehicle, comprising a shift lever assembly 10 and a base assembly 20. The shift lever assembly 10 includes a lever body 11, a bearing assembly 13, a first magnetic element 12 and a third magnetic element 14 fixed to the lever body 11, and the base assembly 20 includes a base 21, a second magnetic element 22 fixed to the base 21, and a gear position display device 23.

[0030] The bearing assembly 13 includes at least one bearing. A retaining groove 213 is provided on the base 21, and the bearing is installed in the retaining groove 213 with an interference fit. The inner ring of the bearing is fixed to the rod body 11, and the outer ring of the bearing contacts the base 21. The bearing assembly 13 enables the shift lever assembly 10 to slide on the base assembly 20, and the retaining groove 213 ensures that the shift lever assembly 10 can only slide laterally on the base assembly 20.

[0031] The shift lever assembly 10 has an initial position and a moving position. There is an attractive force between the first magnetic element 12 and the second magnetic element 22. The shift lever assembly 10 is located at the initial position under the action of the attractive force. The shift lever assembly 10 can overcome the attractive force and leave the initial position under the action of an external force, and when there is no external force, the shift lever assembly 10 is subjected to the attractive force and returns to the initial position.

[0032] The push - type shift mechanism provided in this embodiment provides a shift feel and realizes the automatic reset function after shifting through the attractive force between multiple magnetic elements. The structure is simple, there is no mechanical wear, the cost is low, the noise is small, and the service life is long. Also, the sliding of the shift lever assembly 10 is realized through the bearing group 13, reducing the space of the shift mechanism, simplifying the structure of the shift mechanism, improving lightweight, and reducing costs. In other embodiments, the bearing group 13 can also be replaced by structures such as a chute, gears, lubricating oil, etc., or the shift lever assembly 10 can be suspended on the base assembly 20 by the repulsive force between magnets, further reducing the frictional resistance and mechanical wear.

[0033] Please refer to Figures 3 to 5 , the rod body 11 includes a handle 111, a first sliding piece 112, and a second sliding piece 113. The front end of the handle 111 is exposed outside the base assembly 20, and the handle 111 is used to enable a person to push the shift lever assembly 10 to overcome the attractive force and leave the initial position. The first sliding piece 112 is fixedly connected to the end of the handle 111, and the second sliding piece 113 is slidably connected to the first sliding piece 112. The first magnetic element 12 is fixed on the first sliding piece 112, and the third magnetic element 14 is fixed on the second sliding piece 113. The first magnetic element 12 includes a first magnet 121 and a second magnet 122, and the third magnetic element 14 includes a third magnet 141 and a fourth magnet 142. The second magnetic element 22 includes a fifth magnet 221 and a sixth magnet 222, and the second magnetic element 22 is fixed on the bottom plate of the seat body 21 below the first sliding piece 112 and the second sliding piece 113.

[0034] When the shift lever assembly 10 is in the initial position, the first magnet 121, the third magnet 141, and the fifth magnet 221 are located in a row and are opposite to each other at the head and tail. The second magnet 122, the fourth magnet 142, and the sixth magnet 222 are located in a row and are opposite to each other at the head and tail. The first magnet 121 and the second magnet 122 have opposite polarities. The shift lever assembly 10 is located at the initial position under the gravitational action of the first magnetic element 12 and the second magnetic element 22.

[0035] Please refer to Figures 4 to 6, the moving positions include a front first position, a front and rear first position, a rear first position, and a rear second position. The first sliding piece 112 can slide within the base assembly 20 when the handle 111 is pushed by an external force, and the second sliding piece 113 slides together with the first sliding piece 112 under the gravitational force of the first magnetic element 12 and the third magnetic element 14. When the first sliding piece 112 slides forward to reach the front first position (as shown in Figure 5 ), the second magnet 122, the fourth magnet 142, and the fifth magnet 221 are in a line. The second magnet 122 and the fifth magnet 221 have opposite polarities. When there is no external force on the handle 111, there is a repulsive force between the second magnet 122 and the fifth magnet 221, and an attractive force between the second magnet 122 and the sixth magnet. Under the combined action of the repulsive force and the attractive force, the first sliding piece 112 and the second sliding piece 113 move back to the initial position to the right. When the first sliding piece 112 slides backward to reach the rear first position (on the right side of Figure 5 , not shown in the figure), the shape structure and the moving mode are symmetric with respect to the initial position along the front first position. The first magnet 121, the third magnet 141, and the sixth magnet 222 are in a line. The first magnet 121 and the sixth magnet 222 have opposite polarities. When there is no external force on the handle 111, the first sliding piece 112 and the second sliding piece 113 return to the initial position under the combined action of the repulsive force between the first magnet 121 and the sixth magnet 222 and the attractive force between the first magnet 121 and the fifth magnet 221.

[0036] The seat body 21 is provided with a front limit block 211 and a rear limit block 212, and the front limit block 211 and the rear limit block 212 are respectively located on the trajectories of the forward and backward sliding of the second sliding piece 113 within the base assembly 20. The second sliding piece 113 is blocked by the front limit block 211 and relatively slides with the first sliding piece 112 when the first sliding piece 112 reaches the front and rear first positions. The second sliding piece 113 is blocked by the rear limit block 212 and relatively slides with the first sliding piece 112 when the first sliding piece 112 reaches the rear second position.

[0037] The first sliding piece 112 overcomes the gravitational force between the first magnetic element 12 and the third magnetic element 14 under the action of an external force at the front first position and slides forward within the base assembly 20 to reach the front and rear first positions. The first sliding piece 112 overcomes the gravitational force between the first magnetic element 12 and the third magnetic element 14 under the action of an external force at the rear first position and slides backward within the base assembly 20 to reach the rear second position. When the first sliding piece 112 is at the front and rear first positions (as shown in Figure 6As shown, the second magnet 122 and the third magnet 141 are in a row, and the fourth magnet 142 and the fifth magnet 221 are in a row. The second magnet 122 and the third magnet 141, and the fourth magnet 142 and the fifth magnet 221 have opposite polarities. When there is no external force on the handle 111, there is a repulsive force between the second magnet 122 and the third magnet 141, and an attractive force between the second magnet 122 and the fourth magnet 142. Under the combined action of the repulsive force and the attractive force, the first sliding piece 112 moves to the front first position to the right. After that, the force condition of the first sliding piece 112 in the front first position is the same. The first sliding piece 112 and the second sliding piece 113 return to the initial position under the combined action of the repulsive force and the attractive force.

[0038] When the first sliding piece 112 is in the rear second position ( Figure 6 on the right side, not shown in the figure), the shape, structure and moving mode are symmetric with the front and rear first positions along the initial position. The first magnet 121 and the fourth magnet 142 are in a row, and the third magnet 141 and the sixth magnet 222 are in a row. The first magnet 121 and the fourth magnet 142, and the third magnet 141 and the sixth magnet 222 have opposite polarities. When there is no external force on the handle 111, there is a repulsive force between the first magnet 121 and the fourth magnet 142, and an attractive force between the first magnet 121 and the third magnet 141. Under the combined action of the repulsive force and the attractive force, the first sliding piece 112 moves to the rear first position to the left. After that, the force condition of the first sliding piece 112 in the rear first position is the same. The first sliding piece 112 and the second sliding piece 113 return to the initial position under the combined action of the repulsive force and the attractive force.

[0039] Two magnets are provided for each magnetic element and are arranged in two groups, so that when the shift lever assembly 10 is reset, it is simultaneously affected by attractive force and repulsive force, the reset force is greater, and the movement is smoother. In other embodiments, each magnetic element may also be provided with only one magnet, such as the first magnet 121, the third magnet 141, and the fifth magnet 221. When there is no external force at the moving position, it returns to the initial position only by the attractive force between the magnets.

[0040] In this embodiment, through the relative sliding between multiple groups of sliding pieces and multiple groups of magnets on the sliding pieces, more gear positions can be added, making the shifting function of the shifting structure richer. Also, by arranging multiple magnets on each sliding piece, the magnetic force (including suction force and repulsive force) received by the sliding piece at different positions is different, that is, the shifting force is different, improving the shifting experience.

[0041] In other embodiments, the magnets may not be arranged vertically along the sliding direction of the shift lever assembly 10, but horizontally (refer to Figure 7As shown). Only one limit block can also be set, and they can be flexibly arranged with two in the front and one in the back or one in the front and two in the back before moving the position. The number of sliding pieces, magnets, and limit blocks can also be increased to obtain more moving positions, making the shifting function of the shifting mechanism richer. The second magnetic element 22 can also be installed on the side wall of the seat body 21, and the magnetic force can be changed by changing the size, number, and arrangement relationship of the magnets, thereby changing the magnitude of the shifting force.

[0042] This embodiment also provides a push-type shifting system, including the push-type shifting mechanism described above and a detection device (not shown) for detecting the preset position where the first magnetic element 12 slides relative to the second magnetic element 22. The detection device includes a PCB board (not shown), a controller (not shown), and a Hall sensor (not shown). The PCB board is arranged on the side wall of the seat body 21, the controller is installed on the PCB board, and the Hall sensor is connected to the PCB board. The Hall sensors correspond to the moving positions. When the first sliding piece 112 reaches each moving position, the corresponding Hall sensor emits a signal. The Hall sensor is connected to the controller, and the controller determines the gear to be operated based on the existing gear position and the signal of the Hall sensor. In other embodiments, Hall sensors can also be set at the initial position, and contact switches and other related components can be used to replace the Hall sensors. The detection object can also be the preset position where the shift lever assembly 10 slides relative to the base assembly 20 to determine the gear position.

[0043] The gear display device 23 is located on the upper cover plate of the base assembly 20. In this embodiment, the P gear (parking gear) button 24 is independently provided and connected to the controller. The gear display device 23 includes a plurality of gear icons arranged in sequence. The gear icons include R gear (reverse gear), N gear (neutral gear), and D gear (forward gear). When the vehicle is just started, the vehicle is in the P gear. After ignition, push the shift lever assembly 10 forward from the initial position to the first front position, change from the P gear to the N gear, and release the hand to return to the initial position. The operation is completed, and the vehicle is in the N gear. Then, push the shift lever assembly 10 forward to the first front position or the first front and rear positions, and both will enter the R gear. Release the hand to return to the initial position, and the operation is completed. If changing from the R gear to the N gear, pull the shift lever assembly 10 backward to the first rear position. If changing from the P gear to the D gear, pull the shift lever assembly 10 backward to the first rear position or the second rear position, and both will enter the D gear. If changing from the R gear to the D gear, pull the shift lever assembly 10 backward to the second rear position to enter the D gear. If changing from the N gear to the D gear, pull the shift lever assembly 10 backward to the first rear position or the second rear position, and both will enter the D gear. When the vehicle speed is lower than a limit value in the R gear, N gear, and D gear, press the P gear button 24 to directly enter the P gear from the R gear, N gear, and D gear.

[0044] The gear display device 23 is provided with backlights under each gear icon. When in each gear, the corresponding gear icon lights up to remind the driver of the current gear. There is also gear reminder information on the vehicle dashboard (not shown) to display the current gear. In other embodiments, the arrangement positions of each gear icon and the shifting logic can be designed according to the actual situation. For example, the initial position is the P gear, pushing the shift lever assembly 10 forward is the D gear, and backward are the N gear and the R gear.

[0045] The push - type shifting mechanism and system provided in this embodiment provide shifting feel and realize the automatic reset function after shifting through the magnetic force between multiple magnetic elements. The structure is simple, without mechanical wear, low - cost, low - noise, and has a long service life. The sliding of the shift lever assembly 10 is realized through the bearing group 13, reducing the space of the shifting mechanism, simplifying the structure of the shifting mechanism, enhancing lightweight, and reducing costs. Also, through the relative sliding between multiple sets of sliders and multiple sets of magnets on the sliders, more gear positions can be added, making the shifting function of the shifting structure more abundant. By setting two magnets for each magnetic element and arranging them in two groups, when the shift lever assembly 10 is reset, it is simultaneously affected by gravitational force and repulsive force, with a greater reset force and smoother movement. Also, by setting multiple magnets on each slider, the magnetic force received by the slider at different positions is different, that is, the shifting force is different, improving the shifting experience.

[0046] Second Embodiment

[0047] Please refer to Figures 8 to 10 , the difference between a push - type shifting mechanism in the second embodiment of the present invention and the above - mentioned first embodiment is that in this embodiment, the rod body 11 only includes a handle 111 and a first slider 112 fixedly connected to the end of the handle 111, and the moving positions include a front first position and a rear first position.

[0048] The other components such as the bearing group 13 and the detection device are the same as those in the first embodiment. The polarities of the first magnetic element 12 and the second magnetic element 22 are opposite, and the shift lever assembly 10 is located at the initial position under the gravitational force of the first magnetic element 12 and the second magnetic element 22. The first slider 112 can slide back and forth in the base assembly 20 when the handle 111 is pushed by an external force, and can reach the front first position forward and the rear first position backward. When there is no external force acting on the handle 111, the first slider 112 returns to the initial position under the gravitational force of the first magnetic element 12 and the second magnetic element 22.

[0049] The arrangement manner of the first magnetic element 12 and the second magnetic element 22 can also be as Figure 9As shown, the second magnetic element 22 can also be arranged on the side wall of the seat body 21. The first magnetic element 12 and the second magnetic element 22 can also be arranged horizontally along the sliding direction of the shift lever assembly 10, and the polarities of the opposite magnetic poles of the first magnetic element 12 and the second magnetic element 22 are the same. The repulsive force between the first magnetic element 12 and the second magnetic element 22 makes the shift lever assembly 10 located at the initial position. After the shift lever assembly 10 slides relative to the base assembly 20, it moves back to the initial position due to the repulsive force (as Figure 10 shown).

[0050] In this embodiment, there are only the initial position, the front first position, and the rear first position, which is simpler in structure and lower in cost than the above embodiment, and can meet the basic shifting requirements. When the vehicle is just started, the vehicle is in the P gear. After ignition, the shift lever assembly 10 is pushed forward from the initial position to the front first position, shifted from the P gear to the N gear, and released to return to the initial position, and the operation is completed, and the vehicle is in the N gear. Then, the shift lever assembly 10 is pushed forward to the front first position again to enter the R gear, and released to return to the initial position, and the operation is completed. If shifting from the R gear to the N gear, the shift lever assembly 10 is pulled backward to the rear first position. If shifting from the P gear or the N gear to the D gear, pulling the shift lever assembly 10 backward to the rear first position will enter the D gear. If shifting from the R gear to the D gear, the shift lever assembly 10 needs to be pulled backward to the rear first position, released and then shifted to the N gear, and then pulled backward to the rear first position again to enter the D gear. On this basis, more complex shifting operations can be realized by optimizing the shifting logic.

[0051] In the drawings, for clarity, the dimensions and relative dimensions of layers and regions are exaggerated. It should be understood that when an element such as a layer, a region, or a substrate is referred to as being "formed on", "disposed on", or "located on" another element, the element can be directly disposed on the said another element, or there can also be an intermediate element. On the contrary, when an element is referred to as being "directly formed on" or "directly disposed on" another element, there is no intermediate element.

[0052] In this article, unless otherwise clearly specified and defined, the terms "mounted", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0053] In this article, the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of clearly expressing the technical solution and description, and therefore cannot be understood as a limitation of the present invention.

[0054] In this text, the terms "comprising", "including" or any other variants thereof are intended to cover non-exclusive inclusion. In addition to the elements listed, other elements not expressly listed may also be included.

[0055] In this text, the sequential adjectives "first", "second", etc. used to describe elements are only for distinguishing elements with similar attributes, and do not mean that the elements so described must be in a given order, or subject to time, space, rank or other limitations.

[0056] In this text, unless otherwise specified, "a plurality of", "several" mean two or more.

[0057] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0058] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A push - type shift mechanism for a by - wire shift vehicle, characterized in that, It includes a shift lever assembly (10) and a base assembly (20). The shift lever assembly (10) is slidably mounted on the base assembly (20). The shift lever assembly (10) includes a lever body (11) and a first magnetic element (12) fixed to the lever body (11). The base assembly (20) includes a base body (21) and a second magnetic element (22) fixed to the base body (21). A magnetic force is generated between the first magnetic element (12) and the second magnetic element (22), enabling the shift lever assembly (10) to slide relative to the base assembly (20) under the action of an external force to achieve gear shifting. After the external force is removed, it moves back to the initial position due to the magnetic force between the first magnetic element (12) and the second magnetic element (22). The lever body (11) includes a first sliding piece (112) provided at the bottom, and the first magnetic element (12) is fixed to the first sliding piece (112) so that the first magnetic element (12) can drive the lever body (11) to move. The lever body (11) further includes a second sliding piece (113). The second sliding piece (113) is slidably mounted on the first sliding piece (112). The second sliding piece (113) is provided with a third magnetic element (14). The polarities of the corresponding positions of the first magnetic element (12) and the third magnetic element (14) are opposite in the initial position.

2. The push-type shift mechanism according to claim 1, wherein The first magnetic element (12) and the second magnetic element (22) are arranged horizontally along the sliding direction of the shift lever assembly (10), and the polarities of the opposite magnetic poles of the first magnetic element (12) and the second magnetic element (22) are the same, so that after the shift lever assembly (10) slides relative to the base assembly (20), it moves back to the initial position due to the repulsive force between the first magnetic element (12) and the second magnetic element (22).

3. The push-type shift mechanism according to claim 1, wherein The first magnetic element (12) is located on the second magnetic element (22). The first magnetic element (12) and the second magnetic element (22) are arranged vertically along the sliding direction of the shift lever assembly (10), and the polarities of the corresponding positions of the first magnetic element (12) and the second magnetic element (22) are opposite in the initial position, so that after the shift lever assembly (10) slides relative to the base assembly (20), it moves back to the initial position due to the attractive force between the first magnetic element (12) and the second magnetic element (22).

4. The push-type shift mechanism according to claim 3, characterized in that, The seat body (21) is provided with a front limiting block (211) and / or a rear limiting block (212) corresponding to the second sliding piece (113) for limiting the second sliding piece (113). After the first sliding piece (112) drives the second sliding piece (113) to slide to the front limiting block (211) and / or the rear limiting block (212) due to the suction force between the first magnetic element (12) and the third magnetic element (14), the first sliding piece (112) can continue to slide forward. When sliding back, first, the third magnetic element (14) drives the first magnetic element (12) through suction force to make the first magnetic element (12) flush with the third magnetic element (14), and then the second magnetic element (22) drives the first magnetic element (12) and the third magnetic element (14) to return to the initial position through suction force. The first magnetic element (12), the third magnetic element (14), and the second magnetic element (22) each include two magnets with opposite polarities arranged to form two magnet groups, which are adapted to form two rows of magnet groups with opposite ends facing each other in the height direction when the shift lever assembly (10) is in the initial position. When the shift lever assembly (10) returns, in addition to the suction force between the same magnet groups, there is also a repulsive force between different magnet groups among the first magnetic element (12), the third magnetic element (14), and the second magnetic element (22).

5. The push-type shift mechanism according to claim 4, wherein, The first magnetic element (12), the second magnetic element (22), and the third magnetic element (14) are all arranged vertically along the sliding direction of the shift lever assembly (10).

6. The push-type shift mechanism according to any one of claims 1 to 5, characterized in that A limiting groove (213) is provided on the seat body (21). The shift lever assembly (10) further includes a bearing group (13). The bearing group (13) includes at least one bearing. The inner ring of the bearing is fixed on the rod body (11), and the outer ring of the bearing is installed in the limiting groove (213) by interference fit, so that the shift lever assembly (10) can only slide horizontally on the base assembly (20).

7. A push - type shifting system, characterized in that, It includes the push-type shift mechanism as described in any one of claims 4 to 6 and a detection device. The detection device detects the position of the first magnetic element (12) through a Hall sensor. The position of the first magnetic element (12) includes an initial position, a front first position, a front second position, a rear first position, and a rear second position. When the position of the first magnetic element (12) reaches the front first position, it shifts forward by one gear. When the position of the first magnetic element (12) reaches the front second position, it shifts forward by two gears. When the position of the first magnetic element (12) reaches the rear first position, it shifts backward by one gear. When the position of the first magnetic element (12) reaches the rear second position, it shifts backward by two gears.

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