Gear shifter, gear shifting system and vehicle

Abstract

The utility model discloses a gear shifter, a gear shifting system and a vehicle. The gear shifter comprises a gear shifting panel, a first unipolar Hall element, a gear shifting knob and a magnet. Wherein the first unipolar Hall element is arranged on the gear shifting panel and is used for being connected with a controller; the gear shifting knob is rotationally connected to the gear shifting panel; the magnet is arranged on the gear shifting knob; the gear shifting knob can drive the magnet to rotate to a position close to or far away from the first unipolar Hall element; the first unipolar Hall element is configured in the mode that when the gear shifting rotary knob drives the magnet to rotate to the position close to the first unipolar Hall element, the first unipolar Hall element sends a gear shifting signal to the controller.

Description

Technical Field

[0001] The present invention relates to the field of electromagnetism, and more particularly to a gear shifter, a gear shifting system and a vehicle. Background Art

[0002] The gears of a vehicle are generally composed of four gears: P / R / N / D. Among them, P is the parking gear, R is the reverse gear, N is the neutral gear, and D is the forward gear. The gear shifter will switch between the gears according to a certain strategy. The gear shifter in the related art mainly uses a magnetic angle sensor or a 3D Hall IC to realize the gear shifting function. However, PWM control is more complicated in logic processing and has higher requirements on the ports of the controller (MCU). Utility Model Content

[0003] The present utility model is proposed to solve at least one of the above problems. According to the first aspect of the present application, a shifter is provided, the shifter comprising: a shift panel, a first unipolar Hall element, a shift knob and a magnet; wherein the first unipolar Hall element is arranged on the shift panel for connecting with a controller; the shift knob is rotatably connected to the shift panel; the magnet is arranged on the shift knob; and the shift knob can drive the magnet to rotate to a position close to or away from the first unipolar Hall element; the first unipolar Hall element is configured as follows: when the shift knob drives the magnet to rotate to a position close to the first unipolar Hall element, the first unipolar Hall element sends a gear switching signal to the controller.

[0004] In one embodiment of the present application, the first unipolar Hall element is further configured to send a gear holding signal to the controller when the shift knob drives the magnet to rotate to a position away from the first unipolar Hall element.

[0005] In one embodiment of the present application, at least one preset sensing position is provided on the shift panel, and each preset sensing position is provided with at least one first unipolar Hall element; when the shift knob drives the magnet to rotate to one of the preset sensing positions, the first unipolar Hall element at the preset sensing position where the magnet is located sends the gear switching signal to the controller.

[0006] In one embodiment of the present application, the shift knob is a self-resetting knob that can reset itself to a preset initial position; wherein, when the shift knob rotates from the preset initial position to one of the preset sensing positions, the first unipolar Hall element at the preset sensing position where the magnet is located sends the gear switching signal to the controller.

[0007] In one embodiment of the present application, the preset sensing position includes at least a first preset sensing position and a second preset sensing position, and the first preset sensing position is arranged between the preset initial position and the second preset sensing position; when the shift knob drives the magnet to rotate in a counterclockwise direction from the preset initial position to the first preset sensing position, the first unipolar Hall element at the first preset sensing position sends the gear switching signal to the controller, so that the controller outputs a gear switching control signal for switching one gear in a reverse switching direction; when the shift knob drives the magnet to rotate in the counterclockwise direction from the preset initial position to the second preset sensing position, the first unipolar Hall element at the second preset sensing position sends the gear switching signal to the controller, so that the controller outputs a gear switching control signal for continuously switching two gears in the reverse switching direction.

[0008] In one embodiment of the present application, the preset initial position, the first preset sensing position and the second preset sensing position are arranged in sequence at equal intervals along the counterclockwise direction around the rotation center of the self-reset knob.

[0009] In one embodiment of the present application, the preset sensing position also includes at least a third preset sensing position and a fourth preset sensing position, the third preset sensing position is arranged between the preset initial position and the fourth preset sensing position, and the preset initial position is arranged between the first preset sensing position and the third preset sensing position; when the shift knob drives the magnet to rotate from the preset initial position to the third preset sensing position in a clockwise direction, the first unipolar Hall element at the third preset sensing position sends the gear switching signal to the controller, so that the controller outputs a gear switching control signal for switching one gear along the sequential switching direction; when the shift knob drives the magnet to rotate from the preset initial position to the fourth preset sensing position in the clockwise direction, the first unipolar Hall element at the fourth preset sensing position sends the gear switching signal to the controller, so that the controller outputs a gear switching control signal for continuously switching two gears along the sequential switching direction.

[0010] In one embodiment of the present application, the fourth preset sensing position, the third preset sensing position, the preset initial position, the first preset sensing position and the second preset sensing position are arranged at equal intervals in sequence along the counterclockwise direction around the rotation center of the self-reset knob.

[0011] In one embodiment of the present application, the equally spaced angles are not less than 15° and not more than 60°.

[0012] In one embodiment of the present application, the shifter also includes: a second unipolar Hall element, which is arranged at the preset initial position and is used to connect to the controller; when the self-reset knob is reset to the preset initial position, the magnet approaches the second unipolar Hall element so that the second unipolar Hall element sends a third level signal to the controller indicating the reset of the self-reset knob.

[0013] In one embodiment of the present application, each of the first unipolar Hall element and the second unipolar Hall element includes: a power supply terminal, an output terminal and a ground terminal, wherein the power supply terminal is connected to a power supply; the output terminal is connected to the controller; a first filter capacitor is connected between the power supply terminal and the ground terminal, and a second filter capacitor is connected between the output terminal and the ground terminal.

[0014] In one embodiment of the present application, at least two second unipolar Hall elements are arranged at the preset initial position.

[0015] In one embodiment of the present application, at least two first unipolar Hall elements are disposed at each preset sensing position of at least part of the preset sensing positions.

[0016] In one embodiment of the present application, the shifter is a shifter of a vehicle, and the vehicle has at least a reverse gear, a neutral gear and a forward gear; when the controller outputs a gear switching control signal, the gear of the vehicle is switched from one of the reverse gear, neutral gear and forward gear to another gear.

[0017] In one embodiment of the present application, the shifter is a shifter of a vehicle, and the vehicle has at least a parking gear; a push switch is also provided on the rotary button, and the push switch is connected to the controller; when the push switch is in a pop-up state, the controller outputs a parking gear signal to control the vehicle to be in a parking brake state; when the push switch is in a pressed state, the controller outputs a parking gear exit signal to control the vehicle to exit the parking brake state.

[0018] According to the second aspect of the present application, a gear shifting system is also provided, comprising: a controller and any one of the above-mentioned gear shifters; wherein the controller is connected to the first unipolar Hall element, and the controller is used to output a gear switching control signal according to the gear switching signal.

[0019] According to a third aspect of the present application, a vehicle is also provided, comprising: any one of the above-mentioned shifters, or any one of the above-mentioned shift systems.

[0020] According to the shifter, shift system and vehicle provided by the embodiment of the present application, by setting a first unipolar Hall element and setting a magnet on the shift knob, the shift knob can drive the magnet to rotate to a position close to or away from the first unipolar Hall element; and when the shift knob drives the magnet to rotate to a position close to the first unipolar Hall element, the first unipolar Hall element sends a gear switching signal to the controller. Compared with the PWM control method used in the related art, the present application can use the GPIO interface in the controller to connect the first unipolar Hall element, which has lower requirements on the port of the controller and simpler control logic. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic structural block diagram of a shifter according to an embodiment of the present utility model;

[0023] Figure 2 This is a connection diagram of a controller on a vehicle shown in one embodiment of the utility model;

[0024] Figure 3 This is a circuit connection diagram of a unipolar Hall element according to an embodiment of the present utility model;

[0025] Figures 4 to 7 The circuit diagrams of the indicator lights for the R gear, N gear, D gear and P gear shown in one embodiment of the utility model are respectively shown;

[0026] Figure 8 This is a circuit diagram of the backlight in R gear, N gear, D gear and P gear according to an embodiment of the utility model.

[0027] Reference numerals:

[0028] 10-shift panel 21-first unipolar Hall element 22-second unipolar Hall element

[0029] 30 - shift knob 40 - magnet 50 - preset initial position 61 - first preset sensing position

[0030] 62-second preset sensing position 63-third preset sensing position 64-fourth preset sensing position

[0031] 70-Press switch 81-Reverse gear indicator light 82-Neutral gear indicator light

[0032] 83- Forward gear indicator light 84- Parking gear indicator light 91- Reverse gear backlight

[0033] 92-Neutral gear backlight 93-Drive gear backlight 94-Parking gear backlight DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model more obvious, the exemplary embodiments according to the utility model will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments of the utility model, and it should be understood that the utility model is not limited to the exemplary embodiments described here. Based on the embodiments of the utility model described in the utility model, all other embodiments obtained by those skilled in the art without creative work should fall within the protection scope of the utility model.

[0035] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0036] It should be understood that the utility model can be implemented in different forms and should not be interpreted as being limited to the embodiments proposed herein. On the contrary, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

[0037] In order to thoroughly understand the present invention, a detailed structure will be presented in the following description to illustrate the technical solution proposed by the present invention. The optional embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other implementations.

[0038] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0039] The gears of existing vehicles are generally composed of four gears: P / R / N / D, where P is the parking gear, R is the reverse gear, N is the neutral gear, and D is the forward gear. The shifter will switch between the gears according to a certain strategy. In the related art, the shifter mainly uses a magnetic angle sensor or a 3D Hall IC to realize the shifting function, which is generally realized by PWM control. The rotation of the rotating mechanism drives the magnet to rotate. The magnetic angle sensor or 3D Hall IC senses the change in magnetic flux brought by the magnet and sends a PWM signal to the controller (MCU). The MCU triggers the switching of the gear by receiving the duty cycle value of the PWM signal. In this solution, the magnet is often required to be directly above the magnetic angle sensor or 3D Hall IC, and the magnet and the magnetic angle sensor or 3D Hall IC often need to rotate coaxially. In this solution, other designs such as lights cannot be performed at the magnet position, and there are limitations on the appearance design of the shift panel. The PWM signal is more complicated in logic processing and has higher requirements on the port of the controller. The above-mentioned technical problems existing in the related art can be solved by the technical solutions shown in some embodiments of the present application.

[0040] The present application embodiment provides a shifter, referring to Figure 1 , Figure 2 and Figure 3 The shifter includes: a shift panel 10, a first unipolar Hall element 21, a shift knob 30 and a magnet 40; wherein the first unipolar Hall element 21 is arranged on the shift panel 10 for connecting with the controller; the shift knob 30 is rotatably connected to the shift panel 10; the magnet 40 is arranged on the shift knob 30; and the shift knob 30 can drive the magnet 40 to rotate to a position close to or away from the first unipolar Hall element 21; the first unipolar Hall element 21 is configured as follows: when the shift knob 30 drives the magnet 40 to rotate to a position close to the first unipolar Hall element 21, the first unipolar Hall element 21 sends a gear switching signal to the controller.

[0041] In the scheme shown above, by setting the first unipolar Hall element 21 and setting the magnet 40 on the shift knob 30, the shift knob 30 can drive the magnet 40 to rotate to a position close to or away from the first unipolar Hall element 21; and when the shift knob 30 drives the magnet 40 to rotate to a position close to the first unipolar Hall element 21, the first unipolar Hall element 21 sends a gear switching signal to the controller, so that the controller outputs a gear switching control signal according to the gear switching signal. Compared with the PWM control method used in the related art, the present application can use the GPIO interface in the controller to connect the first unipolar Hall element 21, which has lower requirements on the port of the controller, simpler control logic, and more flexible appearance design. The above structures are described in detail below in conjunction with the accompanying drawings.

[0042] When setting the shift panel 10, refer to Figure 1 , Figure 2 and Figure 3 The shift panel 10 is used as a carrier for setting the shift knob 30 and the unipolar Hall element, and can adopt any structure that can provide a setting surface. For example, a plastic insulating plate can be used as the shift panel 10.

[0043] When setting the shift knob 30, refer to Figure 1 , Figure 2 and Figure 3 The shift knob 30 is rotatably connected to the shift panel 10. Specifically, the shift knob 30 can be rotatably connected to the shift panel 10 via a rotating shaft, so that the shift knob 30 can rotate relative to the shift panel 10. Specifically, the rotating shaft of the shift knob 30 can be used as a rotation center, and the shift knob 30 rotates relative to the shift panel 10 around the rotation center. A magnet 40 is connected to the shift knob 30. The magnet 40 can be connected to the shift knob 30 by bonding, clamping, screw fastening, etc., so that when the shift knob 30 rotates, it can drive the magnet 40 to rotate, thereby driving the magnet 40 to approach or move away from the first unipolar Hall element 21, so that the magnetic flux near the first unipolar Hall element 21 changes, and the first unipolar Hall element 21 is turned on or off to output different level signals. Exemplarily, the magnet 40 can be a permanent magnet, and one of the N pole and S pole of the magnet 40 can be oriented toward the rotating axis of the shift knob 30, and the other pole is away from the rotating axis of the shift knob 30, that is, the extension direction of the magnetic pole of the magnet 40 is set perpendicular to the rotating axis direction of the shift knob 30.

[0044] When setting the first unipolar Hall element 21, refer to Figure 1 , Figure 2 and Figure 3 The first unipolar Hall element 21 is disposed on the shift panel 10 and is disposed around the rotating shaft of the shift knob 30. The first unipolar Hall element 21 is also connected to the controller to send a gear switching signal to the controller when a condition is met. The first unipolar Hall element 21 is disposed between the shift panel 10 and the magnet 40, so that the shift knob 30 can drive the magnet 40 to rotate to a position close to the first unipolar Hall element 21, so that the first unipolar Hall element 21 can send a gear switching signal to the controller.

[0045] It should be explained that the shift knob 30 drives the magnet 40 to rotate to a position close to the first unipolar Hall element 21, which means that the distance between the magnet 40 and the first unipolar Hall element 21 is not greater than the preset distance. The size of the preset distance is specifically related to the magnetic size of the magnet 40, the hysteresis of the first unipolar Hall element 21, etc. For example, when the shift knob 30 drives the magnet 40 to rotate to a position close to the first unipolar Hall element 21, the magnet 40 can be located directly above the first unipolar Hall element 21 or within a preset distance from the first unipolar Hall element 21, resulting in a change in magnetic flux, so that the first unipolar Hall element 21 can send a gear switching signal to the controller, so that the controller outputs a gear switching control signal according to the gear switching signal, thereby switching the gear. The shift knob 30 can also drive the magnet 40 to rotate to a position away from the first unipolar Hall element 21. For example, at this time, the distance between the magnet 40 and the first unipolar Hall element 21 can be greater than the preset distance.

[0046] Exemplary, reference Figure 1 , Figure 2 and Figure 3 , the first unipolar Hall element 21 can also be configured as follows: when the shift knob 30 drives the magnet 40 to rotate to a position away from the first unipolar Hall element 21, the first unipolar Hall element 21 sends a gear retention signal representing the gear retention to the controller, so that the controller outputs a gear retention control signal according to the gear retention signal. Exemplarily, the above-mentioned gear switching signal can be a first level signal, and the above-mentioned gear retention signal can be a second level signal. Exemplarily, the above-mentioned first level signal can be a low level signal, and the above-mentioned second level signal can be a high level signal. Of course, in other embodiments, the first level signal can also be a high level signal, and the second level signal can also be a low level signal. Using the first unipolar Hall element 21, the output is a high\low level signal (first level signal or second level signal), and the ordinary GPIO port of the controller can meet the requirements. Compared with the solution of obtaining PWM signals through Hall chips in the related art, the control logic is simpler, the circuit design is also simpler, the real-time performance is good, and the response is fast.

[0047] Different types of unipolar Hall elements have different hysteresis, that is, the distance between the magnetic field opening point BOP and the release point BRP is different. The built-in hysteresis of the unipolar Hall element enables the unipolar Hall element to quickly switch the output form in real time under external mechanical interference and noise. For example, refer to Figure 1 and Figure 3When a magnetic field perpendicular to the unipolar Hall element increases to the opening point BOP, the unipolar Hall element outputs a low-level signal (first-level signal). When the magnetic field weakens to the release point BRP, the unipolar Hall element outputs a high-level signal (second-level signal).

[0048] Exemplary, reference Figure 1 and Figure 3 , the first unipolar Hall element 21 can be set at at least one preset sensing position. Exemplarily, at least one preset sensing position is set on the shift panel 10, and at least one first unipolar Hall element 21 is set at each preset sensing position. When the shift knob 30 drives the magnet 40 to rotate to a preset sensing position, it means that the magnet 40 rotates to the position of the first unipolar Hall element 21 close to a preset sensing position, and the first unipolar Hall element 21 at the preset sensing position where the magnet 40 is located sends a gear switching signal to the controller. Exemplarily, at this time, the first unipolar Hall element 21 at other preset sensing positions sends a gear holding signal to the controller. Exemplarily, the preset sensing position can be a rotation sensing position of the shift knob 30. After the shift knob 30 rotates to a preset sensing position, the shift knob 30 can have a sharp increase in rotation driving force through structures such as but not limited to protrusions, springs, etc., so that the user can clearly feel that it rotates to a preset sensing position during the rotation of the rotary button, thereby providing a feedback to the user. The first unipolar Hall element 21 is set at a preset sensing position, so that after the shift knob 30 drives the magnet 40 to rotate to the preset sensing position, it can ensure that the magnet 40 is close to the first unipolar Hall element 21, so that the first unipolar Hall element 21 sends a gear switching signal to the controller. In the above manner, it is also possible to increase the residence time of the magnet 40 at the preset sensing position, ensure that the time for the first unipolar Hall element 21 to send the gear holding signal to the controller is greater than the preset time, and ensure that the first unipolar Hall element 21 stably and reliably sends the gear holding signal to the controller.

[0049] Exemplary, reference Figure 1 and Figure 3, the shift knob 30 can be a self-reset knob that can self-reset to a preset initial position 50, that is, the shift knob 30 is a self-reset knob, and the specific way to achieve self-reset can be achieved by using structures such as but not limited to torsion springs. After the user rotates the self-reset knob to a non-preset initial position 50 and releases the self-reset knob, the self-reset knob can self-rotate and reset to the preset initial position 50 by relying on structures such as torsion springs therein. Exemplarily, when the shift knob 30 rotates from the preset initial position 50 to one of the preset sensing positions, the first unipolar Hall element 21 at the preset sensing position where the magnet 40 is located sends a gear switching signal to the controller, so that the controller outputs a gear switching control signal according to the gear switching signal. Exemplarily, at this time, the first unipolar Hall elements 21 at other preset sensing positions send a gear holding signal to the controller. For example, if the shift knob 30 is not rotated from the preset initial position 50 to the preset sensing position, the controller and the circuit design inside the first unipolar Hall element 21 can be used to prevent the first unipolar Hall element 21 from sending a gear switching signal representing the gear switching to the controller. Of course, in other embodiments, the logic of the controller can also be designed so that when the shift knob 30 is only rotated from the preset initial position to a preset sensing position, the shift operation is a valid shift operation; if the shift knob 30 does not rotate from the preset initial position, the controller receives the gear switching signal but confirms that the shift operation is an invalid shift operation. This method can ensure that another gear switch is performed after one gear switch is completed.

[0050] Exemplary, reference Figure 1 and Figure 3 , the number of the preset sensing positions may be one or more. Each preset sensing position is provided with at least one first unipolar Hall element 21. In some embodiments, at least two first unipolar Hall elements 21 may be provided in each of at least some of the preset sensing positions to increase the redundant design. Exemplarily, each preset sensing position may be provided with two, three or four first unipolar Hall elements 21. Thus, after some of the first unipolar Hall elements 21 at the preset sensing positions fail, the other first unipolar Hall elements 21 can still work independently, thereby ensuring the normal operation of the shifter.

[0051] Exemplary, reference Figure 1 and Figure 3, the preset sensing position may at least include a first preset sensing position 61 and a second preset sensing position 62, wherein the first preset sensing position 61 is arranged between the preset initial position 50 and the second preset sensing position 62. That is, when the self-reset knob rotates counterclockwise from the preset initial position 50, it first rotates a certain angle and then rotates to the first preset sensing position 61. For example, the self-reset knob rotates 30° counterclockwise from the preset initial position 50 to the first preset sensing position 61. Then, it rotates counterclockwise for a certain angle and then rotates to the second preset sensing position 62. For example, the self-reset knob rotates 60° counterclockwise from the preset initial position 50 to the second preset sensing position 62. That is, when the self-reset knob rotates counterclockwise from the preset initial position 50, it first rotates to the first preset sensing position 61 and then rotates to the second preset sensing position 62.

[0052] Exemplary, reference Figure 1 and Figure 3 When the shift knob 30 drives the magnet 40 to rotate counterclockwise from the preset initial position 50 to the first preset sensing position 61, the first unipolar Hall element 21 at the first preset sensing position 61 sends a gear switching signal to the controller, so that the controller outputs a gear switching control signal for switching one gear in the reverse switching direction. When the shift knob 30 drives the magnet 40 to rotate counterclockwise from the preset initial position 50 to the second preset sensing position 62, the first unipolar Hall element 21 at the second preset sensing position 62 sends a gear switching signal to the controller, so that the controller outputs a gear switching control signal for continuously switching two gears in the reverse switching direction. That is, when the shift knob 30 rotates counterclockwise from the preset initial position 50, each time it passes a preset sensing position, the gear switching signal output by the controller can control the switching of one gear in the reverse switching direction. Therefore, when the shift knob 30 rotates from the preset initial position 50 to the second preset sensing position 62 at once, it can control the continuous switching of two gears in the reverse switching direction. The controller can determine the number of preset sensing positions swept by the shift knob 30 after rotating from the preset initial position through logical judgment. For example, the reverse switching direction can be a gear increase direction. That is, based on the current gear, one gear is added or two gears are added continuously, thereby realizing "jumping" gear shifting, that is, skipping gear shifting.

[0053] When the preset initial position 50, the first preset sensing position 61 and the second preset sensing position 62 are set on the shift panel 10, various methods can be used. Figure 1, the preset initial position 50, the first preset sensing position 61 and the second preset sensing position 62 are arranged in equal intervals in the counterclockwise direction around the rotation center of the self-reset knob. That is, the interval angle between the preset initial position 50 and the first preset sensing position 61 is equal to the interval angle between the first preset sensing position 61 and the second preset sensing position 62, so that when the shift knob 30 rotates counterclockwise from the preset initial position 50, each rotation of an equal interval angle means switching a gear in the reverse switching direction, which is convenient for the user to intuitively feel the number of gears of the shift through the rotation angle of the shift knob 30. The equal interval angle can be any preset angle. Exemplarily, the equal interval angle is not less than 15° and not greater than 60°. Specifically, the equal interval angle can be any angle between 15° and 60°, such as 15°, 30°, 45°, 60°, etc.

[0054] Of course, in some embodiments, reference Figure 1 and Figure 3 , only one first preset sensing position 61 may be set in the counterclockwise direction of the preset initial position 50, and no second preset sensing position 62 may be set. In some embodiments, three preset sensing positions may be set in the counterclockwise direction of the preset initial position 50, and the three preset sensing positions are arranged at intervals, so as to realize a "jumping" shifting mode of continuously adding three gears, that is, shifting by two gears.

[0055] Exemplary, reference Figure 1 and Figure 3 , the preset sensing position may further include at least a third preset sensing position 63 and a fourth preset sensing position 64, wherein the third preset sensing position 63 is arranged between the preset initial position 50 and the fourth preset sensing position 64, and the preset initial position 50 is arranged between the first preset sensing position 61 and the third preset sensing position 63. That is, the third preset sensing position 63 and the fourth preset sensing position 64 are arranged in the clockwise direction of the preset initial position 50, and the clockwise direction is opposite to the counterclockwise direction. It should be explained that the above-mentioned clockwise direction and counterclockwise direction can be Figure 1 The top view of the shift panel 10 is used as a reference to determine the clockwise direction and counterclockwise direction of the shift knob 30. Of course, in other embodiments, the clockwise direction and counterclockwise direction can also be determined by referring to the bottom view of the shift panel 10 to determine the clockwise direction and counterclockwise direction of the shift knob 30.

[0056] At this time, refer to Figure 1 and Figure 3When the self-reset knob rotates clockwise from the preset initial position 50, it first rotates a certain angle and then rotates to the third preset sensing position 63. For example, the self-reset knob rotates 30° clockwise from the preset initial position 50 to the third preset sensing position 63. Then, it rotates clockwise for a certain angle and then rotates to the fourth preset sensing position 64. For example, the self-reset knob rotates 60° clockwise from the preset initial position 50 to the fourth preset sensing position 64. When the self-reset knob rotates clockwise from the preset initial position 50, it first rotates to the third preset sensing position 63 and then rotates to the fourth preset sensing position 64.

[0057] Exemplary, reference Figure 1 and Figure 3 When the shift knob 30 drives the magnet 40 to rotate from the preset initial position 50 to the third preset sensing position 63 in the clockwise direction, the first unipolar Hall element 21 at the third preset sensing position 63 sends a gear switching signal to the controller, so that the controller outputs a gear switching control signal for switching one gear in the sequential switching direction. When the shift knob 30 drives the magnet 40 to rotate from the preset initial position 50 to the fourth preset sensing position 64 in the clockwise direction, the first unipolar Hall element 21 at the fourth preset sensing position 64 sends a gear switching signal to the controller, so that the controller outputs a gear switching control signal for continuously switching two gears in the sequential switching direction. That is, when the shift knob 30 rotates from the preset initial position 50 in the clockwise direction, each time it passes through a preset sensing position, the gear switching signal output by the controller can control the switching of one gear in the sequential switching direction. Therefore, when the shift knob 30 rotates from the preset initial position 50 to the fourth preset sensing position 64 at once, it can control the continuous switching of two gears in the sequential switching direction. The controller can determine the number of preset sensing positions swept by the shift knob 30 after rotating from the preset initial position through logical judgment. Exemplarily, the sequential switching direction can be a gear reduction direction. That is, based on the current gear, reduce one gear or continuously reduce two gears, thereby achieving "jumpy" shifting, that is, skipping gear shifting. It should be noted that the above-mentioned reverse switching direction and sequential switching direction can also be switched in sequence based on other gear sorting methods.

[0058] When the preset initial position 50 and the first preset sensing position 61 to the fourth preset sensing position 64 are set on the shift panel 10, various methods can be used. Figure 1, the fourth preset sensing position 64, the third preset sensing position 63, the preset initial position 50, the first preset sensing position 61 and the second preset sensing position 62 are arranged in equal interval angles in the counterclockwise direction around the rotation center of the self-reset knob. That is, the interval angle between the preset initial position 50 and the first preset sensing position 61, the interval angle between the first preset sensing position 61 and the second preset sensing position 62, the interval angle between the preset initial position 50 and the third preset sensing position 63, and the interval angle between the third preset sensing position 63 and the fourth preset sensing position 64 are all equal, so that when the shift knob 30 rotates counterclockwise or clockwise from the preset initial position 50, each rotation of an equal interval angle means switching a gear in the reverse switching direction, which is convenient for the user to intuitively feel the number of gears of the shift through the rotation angle of the shift knob 30. The equal interval angle can be any preset angle. Exemplarily, the equal interval angle is not less than 15° and not greater than 60°. Specifically, the equally spaced angles may be 15°, 30°, 45°, 60°, or any angle between 15° and 60°.

[0059] Of course, in some embodiments, reference Figure 1 and Figure 3 , only one third preset sensing position 63 may be set in the clockwise direction of the preset initial position 50, and no fourth preset sensing position 64 may be set. In some embodiments, three preset sensing positions may be set in the clockwise direction of the preset initial position 50, and the three preset sensing positions are arranged at intervals, so as to realize a "jumping" shifting mode of continuously reducing three gears, that is, shifting by two gears.

[0060] Exemplary, reference Figure 1 and Figure 3, at least two first unipolar Hall elements 21 are arranged in at least part of the preset sensing positions from the first preset sensing position 61 to the fourth preset sensing position 64. For example, at least two first unipolar Hall elements 21 are arranged in all the preset sensing positions from the first preset sensing position 61 to the fourth preset sensing position 64. Exemplarily, two first unipolar Hall elements 21 are arranged in all the preset sensing positions from the first preset sensing position 61 to the fourth preset sensing position 64, and all the first unipolar Hall elements 21 in the same preset sensing position can output a first level signal or a second level signal, thereby increasing the redundancy design and improving the reliability. Moreover, the gear shift sensitivity can be greatly improved, the gear shift failure caused by the damage of the unipolar Hall element can be better prevented, the accuracy of the gear shift signal recognition can be improved, the vehicle life can be extended, and thus the user experience can be improved. Exemplarily, at least two first unipolar Hall elements 21 can be arranged in some of the preset sensing positions from the first preset sensing position 61 to the fourth preset sensing position 64, while only one first unipolar Hall element 21 can be arranged in another part of the preset sensing positions.

[0061] Exemplary, reference Figure 1 and Figure 3 , the shifter may further include: a second unipolar Hall element 22, which is set at a preset initial position 50 and is used to connect to the controller. When the self-reset knob is reset to the preset initial position 50, the magnet 40 is close to the second unipolar Hall element 22, so that the second unipolar Hall element 22 sends a reset signal to the controller. Exemplarily, the reset signal may be a third level signal. Exemplarily, when the self-reset knob is not located at the preset initial position 50, the magnet 40 is away from the second unipolar Hall element 22, and the second unipolar Hall element 22 sends a non-reset signal to the controller indicating that the self-reset knob has not been reset. Exemplarily, the non-reset signal may be a fourth level signal. Exemplarily, one of the third level signal and the fourth level signal is a low level signal, and the other level signal is a high level signal. For example, the third level signal is a low level signal, and the fourth level signal is a high level signal; or, the third level signal is a high level signal, and the fourth level signal is a low level signal.

[0062] In the above scheme, reference Figure 1 and Figure 3 By setting the second unipolar Hall element 22, it is specifically detected whether the self-reset knob is reset to the preset initial position 50, so that the controller can obtain the initial position of the shift knob 30 each time it is rotated, and it is convenient to perform logical operations, thereby ensuring that each gear shift is a valid gear shift operation when it starts to rotate from the preset initial position 50, otherwise, it is an invalid gear shift operation, thereby improving the accuracy and reliability of the gear shift and preventing confusion in the gear shift logic.

[0063] Exemplary, reference Figure 1 and Figure 3 , the preset initial position 50 may be provided with at least two second unipolar Hall elements 22 to increase the redundancy design. Even if some of the second unipolar Hall elements 22 fail, the shifter can still work normally, thereby improving the reliability and stability of the shifter. Exemplarily, the preset initial position 50 may be provided with two second unipolar Hall elements 22, three second unipolar Hall elements 22, etc. Of course, in other embodiments, only one second unipolar Hall element 22 may be provided.

[0064] When the first unipolar Hall element 21 and the second unipolar Hall element 22 are provided, various methods may be used. Figure 1 and Figure 3 , each of the first unipolar Hall element 21 and the second unipolar Hall element 22 may include: a power supply terminal, an output terminal and a ground terminal, wherein the power supply terminal is connected to the power supply; and the output terminal is connected to the controller. The power supply may be a 5V reference power supply, wherein the ground terminal is used to connect the reference ground, and the output terminal may be connected to a common GPIO interface in the controller to input a gear switching signal, a gear holding signal, a reset signal or an unreset signal to the GPIO interface of the controller. Specifically, when the shift knob 30 drives the magnet 40 to approach one of the first unipolar Hall elements 21, the output terminal of the first unipolar Hall element 21 close to the magnet 40 outputs a gear switching signal to the connector, and the output terminals of the other first unipolar Hall elements 21 output a gear holding signal to the connector. When the shift knob 30 drives the magnet 40 to approach the second unipolar Hall element 22, the output terminal of the second unipolar Hall element 22 outputs a reset signal to the connector.

[0065] Exemplary, reference Figure 1 and Figure 3, a first filter capacitor can be connected between the power terminal and the ground terminal, which can reduce the external noise of the unipolar Hall element and the noise generated by the internal chopping frequency technology. A second filter capacitor can also be connected between the output terminal and the ground terminal to filter the level signal output by the output terminal. The capacitance value of the filter capacitor is specifically related to the band of the filter. Exemplarily, a current limiting resistor can also be connected between the power supply and the power terminal to match the voltage of the power supply electronics to protect the unipolar Hall element. Exemplarily, a pull-up resistor can also be connected between the power supply and the output terminal. When the magnet 40 is close to the unipolar Hall element, the unipolar Hall element is turned on and outputs a low-level signal as a gear holding signal or a reset signal to the GPIO interface of the controller through the output terminal. When the magnet 40 is away from the unipolar Hall element, the unipolar Hall element is opened, and a high-level signal as a gear holding signal or an unreset signal is output to the GPIO interface of the controller through the pull-up resistor.

[0066] Exemplary, reference Figure 1 The shifter may be a shifter of a vehicle, and the vehicle may have at least a reverse gear (R gear), a neutral gear (N gear) and a forward gear (D gear). That is, the vehicle may be an automatic gear vehicle. Exemplarily, when the controller outputs a gear switching control signal, the gear of the vehicle may be switched from one of the reverse gear, the neutral gear and the forward gear to another gear.

[0067] For example, the reverse gear, neutral gear and forward gear can be arranged in sequence, wherein the reverse switching direction is the switching sequence of reverse gear→neutral gear→forward gear, and the sequential switching direction is the switching sequence of forward gear→neutral gear→reverse gear. For example, when the current gear of the vehicle is the reverse gear, if the controller outputs a gear switching signal for switching one gear along the reverse switching direction, the gear of the vehicle is switched from the current reverse gear to the neutral gear; if the controller outputs a gear switching signal for continuously switching two gears along the reverse switching direction, the gear of the vehicle is switched from the current reverse gear to the forward gear. For example, when the current gear of the vehicle is the forward gear, if the controller outputs a gear switching signal for switching one gear along the sequential switching direction, the gear of the vehicle is switched from the current forward gear to the neutral gear; if the controller outputs a gear switching signal for continuously switching two gears along the sequential switching direction, the gear of the vehicle is switched from the current forward gear to the reverse gear.

[0068] Exemplary, reference Figure 1, the shifter may be a shifter of a vehicle, and the vehicle may also have at least a parking gear (P gear). A push switch 70 may be provided on the rotary button, and the push switch 70 is connected to the controller. When the push switch 70 is in a pop-up state, the controller outputs a parking gear signal to control the vehicle to be in a parking brake state. When the push switch 70 is in a pressed state, the controller outputs a parking gear exit signal to control the vehicle to exit the parking brake state. Exemplarily, the push switch 70 may be a button. In this embodiment, the button and the shift knob 30 can be integrated to improve the integration of the structure.

[0069] Exemplary, reference Figure 1 , Figures 4 to 7 , a gear indicator light may be provided on the shift panel 10, and one gear indicator light may be provided for each gear position. The gear indicator light is connected to a controller, and the controller may control the on and off of each gear indicator light. Specifically, the gear indicator light corresponding to the current gear position is lit, while the gear indicator lights corresponding to other gear positions are off, so that the user is aware of the current gear position status. Exemplarily, the controller and each gear indicator light may be connected via a switch tube, and the controller may control the gear indicator light corresponding to the current gear position to light up, while the gear indicator lights corresponding to other gear positions are off, through the switch tube.

[0070] Exemplary, reference Figure 1 , Figures 4 to 7 , the shift panel 10 may be provided with a reverse gear indicator light 81 (R gear indicator light), a neutral gear indicator light 82 (N gear indicator light), a forward gear indicator light 83 (D gear indicator light) and a parking gear indicator light 84 (P gear indicator light), wherein the reverse gear indicator light 81, the neutral gear indicator light 82, and the forward gear indicator light 83 are arranged from left to right above the shift knob 30, and the parking gear indicator light 84 is arranged on the pressing surface of the pressing switch 70. Each of the reverse gear indicator light 81, the neutral gear indicator light 82, the forward gear indicator light 83 and the parking gear indicator light 84 is connected to the controller through a switch tube, and the controller can control each gear indicator light to light up or go out separately. Exemplarily, the reverse gear indicator light 81 (R gear indicator light), the neutral gear indicator light 82 (N gear indicator light), the forward gear indicator light 83 (D gear indicator light) and the parking gear indicator light 84 (P gear indicator light) can all be blue LED lights. Exemplarily, the controller can independently control each gear indicator light to light up or go out by using a PWM control signal.

[0071] Exemplary, reference Figure 1 and Figure 8, a gear backlight can be provided on the shift panel 10. Each backlight can be provided at the gear indicator light, where the gear indicator light is often provided with a gear mark, and the backlight is also located near the gear mark, so that when the backlight is on, the user can clearly see the gear mark. Exemplarily, a reverse gear backlight 91 (R gear backlight), a neutral gear backlight 92 (N gear backlight), a forward gear backlight 93 (D gear backlight) and a parking gear backlight 94 (P gear backlight) can be provided. All backlights can be connected to the controller through a switch tube, so that the controller can control all backlights to light up or extinguish through the switch tube. Exemplarily, the reverse gear backlight 91 (R gear backlight), the neutral gear backlight 92 (N gear backlight), the forward gear backlight 93 (D gear backlight) and the parking gear backlight 94 (P gear backlight) can all be yellow LED lights. Exemplarily, the controller may uniformly control all gear backlights to turn on or off by using the same GPIO interface or the same PWM signal.

[0072] Exemplary, reference Figure 2 , the touch function and LDO voltage conversion module on the vehicle can also be connected to the same controller, thereby realizing the integration of various functions and improving the integration of the device.

[0073] In the various embodiments shown above, by setting the first unipolar Hall element 21 and setting the magnet 40 on the shift knob 30, the shift knob 30 can drive the magnet 40 to rotate to a position close to or away from the first unipolar Hall element 21; and when the shift knob 30 drives the magnet 40 to rotate to a position close to the first unipolar Hall element 21, the first unipolar Hall element 21 sends a gear switching signal to the controller, so that the controller outputs a gear switching control signal according to the gear switching signal. Compared with the PWM control method used in the related art, the present application can use the GPIO interface in the controller to connect the first unipolar Hall element 21, which has lower requirements on the port of the controller and simpler control logic.

[0074] Compared with the solutions of the related art, some of the above embodiments of the present application have the following advantages:

[0075] 1. This application adopts a first unipolar Hall element 21, and the output is a high / low level signal (a first level signal or a second level signal), and the ordinary GPIO port of the controller can meet the demand. Compared with the solution of obtaining PWM signals through a Hall chip in the related art, the control logic is simpler, the circuit design is also simpler, the real-time performance is good, and the response is fast.

[0076] 2. In some embodiments of the present application, a preset initial position 50 and a preset sensing position are set. The user can flexibly switch gears by turning the shift knob 30 left or right, and there is no need for the first unipolar Hall element 21 and the second unipolar Hall element 22 to rotate coaxially with the magnet 40. Therefore, the appearance design is more flexible, and the appearance, position, and number of lights of the shift knob 30 and the light can be changed according to different user preferences.

[0077] 3. In some embodiments of the present application, each preset sensing position has a redundant design, that is, at least two first unipolar Hall elements 21 are set at each preset sensing position, and at least two second unipolar Hall elements 22 are set at the preset initial position 50, which can better prevent shift failure caused by damage to the Hall element, improve the accuracy of shift signal recognition, extend the life of the shifter, and thus improve the user experience.

[0078] In addition, the present application also provides a gear shifting system, referring to Figures 1 to 8 The gear shifting system includes: a controller and any one of the above-mentioned gear shifters; wherein the controller is connected to the first unipolar Hall element 21, and the controller is used to output a gear switching control signal according to the gear switching signal. The gear shifting system can be applied to various products with gear shifting requirements such as but not limited to vehicles, electronic equipment, etc. When the gear shifting system is applied to a vehicle, the controller can be a vehicle controller of the vehicle.

[0079] Furthermore, the present application embodiment also provides a vehicle, referring to Figures 1 to 8 The vehicle includes: any one of the above-mentioned shifters, or any one of the above-mentioned shifting systems. The vehicle may be, for example, but not limited to, a fuel vehicle, an electric vehicle, etc. Exemplarily, the vehicle has at least a reverse gear, a neutral gear, and a forward gear; when the controller outputs a gear switching control signal, the gear of the vehicle is switched from one of the reverse gear, the neutral gear, and the forward gear to another gear.

[0080] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A gear shifter, It is characterized in that include: Shift panel; A first unipolar Hall element, disposed on the shift panel and used for connecting to a controller; A shift knob, rotatably connected to the shift panel; A magnet is disposed on the shift knob; and the shift knob can drive the magnet to rotate to a position close to or away from the first unipolar Hall element; When the shift knob drives the magnet to rotate to a position close to the first unipolar Hall element, the first unipolar Hall element sends a gear switching signal to the controller.

2. The shifter according to claim 1, It is characterized in that The first unipolar Hall element is further configured to send a gear holding signal to the controller when the shift knob drives the magnet to rotate to a position away from the first unipolar Hall element.

3. The shifter according to claim 1, It is characterized in that At least one preset sensing position is arranged on the shift panel, and each of the preset sensing positions is arranged with at least one of the first unipolar Hall elements; When the shift knob drives the magnet to rotate to one of the preset sensing positions, the first unipolar Hall element at the preset sensing position where the magnet is located sends the gear switching signal to the controller.

4. The shifter according to claim 3, It is characterized in that The shift knob is a self-resetting knob that can reset itself to a preset initial position; Wherein, when the shift knob rotates from the preset initial position to one of the preset sensing positions, the first unipolar Hall element at the preset sensing position where the magnet is located sends the gear switching signal to the controller.

5. The shifter according to claim 4, It is characterized in that The preset sensing positions at least include a first preset sensing position and a second preset sensing position, and the first preset sensing position is arranged between the preset initial position and the second preset sensing position; When the shift knob drives the magnet to rotate counterclockwise from the preset initial position to the first preset sensing position, the first unipolar Hall element at the first preset sensing position sends the gear switching signal to the controller, so that the controller outputs a gear switching control signal for switching one gear in a reverse switching direction; When the shift knob drives the magnet to rotate from the preset initial position to the second preset sensing position in the counterclockwise direction, the first unipolar Hall element at the second preset sensing position sends the gear switching signal to the controller, so that the controller outputs a gear switching control signal for continuously switching two gears in the reverse switching direction.

6. The shifter according to claim 5, It is characterized in that The preset initial position, the first preset sensing position and the second preset sensing position are arranged in sequence at equal intervals along the counterclockwise direction around the rotation center of the self-reset knob.

7. The shifter according to claim 5, It is characterized in that The preset sensing positions at least include a third preset sensing position and a fourth preset sensing position, the third preset sensing position is arranged between the preset initial position and the fourth preset sensing position, and the preset initial position is arranged between the first preset sensing position and the third preset sensing position; When the shift knob drives the magnet to rotate in the clockwise direction from the preset initial position to the third preset sensing position, the first unipolar Hall element at the third preset sensing position sends the gear switching signal to the controller, so that the controller outputs a gear switching control signal for switching one gear in the sequential switching direction; When the shift knob drives the magnet to rotate from the preset initial position to the fourth preset sensing position in the clockwise direction, the first unipolar Hall element at the fourth preset sensing position sends the gear switching signal to the controller, so that the controller outputs a gear switching control signal for continuously switching two gears along the sequential switching direction.

8. The shifter according to claim 7, It is characterized in that The fourth preset sensing position, the third preset sensing position, the preset initial position, the first preset sensing position and the second preset sensing position are arranged in sequence at equal intervals along the counterclockwise direction around the rotation center of the self-reset knob.

9. The shifter according to claim 6 or 8, It is characterized in that The equally spaced angles are not less than 15° and not more than 60°.

10. The shifter according to claim 4, It is characterized in that Also includes: A second unipolar Hall element is disposed at the preset initial position and is used to connect to the controller; When the self-reset knob is reset to the preset initial position, the magnet approaches the second unipolar Hall element, so that the second unipolar Hall element sends a reset signal to the controller.

11. The shifter according to claim 10, It is characterized in that Each of the first unipolar Hall element and the second unipolar Hall element comprises: A power terminal, connected to a power supply; An output terminal connected to the controller; A grounding terminal, wherein a first filter capacitor is connected between the power terminal and the grounding terminal, and a second filter capacitor is connected between the output terminal and the grounding terminal.

12. The shifter according to claim 10, It is characterized in that At least two of the second unipolar Hall elements are arranged at the preset initial position.

13. The shifter according to claim 3, It is characterized in that At least two of the first unipolar Hall elements are disposed at each of at least some of the preset sensing positions.

14. The shifter according to any one of claims 1 to 13, It is characterized in that The shifter is a shifter of a vehicle, and the vehicle has at least a reverse gear, a neutral gear, and a forward gear; When the controller outputs a gear switching control signal, the gear of the vehicle is switched from one of the reverse gear, neutral gear and forward gear to another gear.

15. The shifter according to any one of claims 1 to 13, It is characterized in that The shifter is a shifter of a vehicle, and the vehicle has at least a parking gear; A push switch is also provided on the rotary button, and the push switch is connected to the controller; when the push switch is in a pop-up state, the controller outputs a parking gear signal to control the vehicle to be in a parking brake state; when the push switch is in a pressed state, the controller outputs an exit parking gear signal to control the vehicle to exit the parking brake state.

16. A gear shifting system, It is characterized in that include: The shifter according to any one of claims 1 to 15; A controller is connected to the first unipolar Hall element and is used to output a gear switching control signal according to the gear switching signal.

17. A vehicle, It is characterized in that include: The shifter according to any one of claims 1 to 15, or the shift system according to claim 16.

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