All-round induction knob type electronic gear shifting manipulator

Abstract

The utility model discloses an all-round induction knob type electronic gear shifting manipulator, and belongs to the technical field of automobile control. The device comprises a seat body used for being connected with a vehicle body, a knob and a Hall sensing assembly, the knob is rotationally connected with the seat body, the Hall sensing assembly comprises an annular magnetic ring fixedly connected with the knob and two Hall sensors fixedly connected with the seat body, a plurality of magnets are arranged on the annular magnetic ring at equal intervals, and the polarities of every two adjacent magnets are opposite to form a boundary; the annular magnetic rings are arranged at intervals relative to the Hall sensors, the two Hall sensors can sense the sequence of magnetic changes of the magnets, and the Hall sensors can change gears according to the sequence of the magnetic changes of the magnets. The gear can be adjusted in a magnetic induction mode, the dustproof and waterproof requirements of the IP56 level are met, and the function is more reliable.

Description

Technical Field

[0001] This utility model relates to the field of automotive control technology, and in particular to a rotary electronic gear shifter with full-circumference sensing. Background Technology

[0002] Electronic gear shift controls are becoming increasingly common in automobiles, with rotary electronic gear shift controls being widely adopted due to their small size, convenient placement, and high cost-effectiveness.

[0003] Existing infinitely rotating knobs generally employ either dual-channel optocouplers or angle Hall effect sensors, using dual-channel optocoupler sensing to determine the knob's rotation direction. However, optocoupler sensing is highly sensitive to dusty environments (dust can cause it to malfunction), and completely eliminating dust from the knob inside a vehicle is very difficult, easily leading to the malfunction of optocoupler-sensored knobs. Angle Hall effect sensors directly identify the rotation angle, but their control systems are more complex, less stable, and prone to failure. Utility Model Content

[0004] In view of this, it is necessary to provide a rotary electronic gear shifter with full-circumference sensing to solve the problem of easy failure of optocoupler technology and angle Hall technology used in existing automotive gear shifters.

[0005] This utility model provides a rotary electronic gear shifter with full-range sensing, comprising:

[0006] The base is used to connect to the vehicle body;

[0007] The knob is rotatably connected to the base.

[0008] The Hall effect sensor assembly includes an annular magnetic ring fixedly connected to the knob and two Hall sensors fixedly connected to the base. Multiple magnets are evenly distributed on the annular magnetic ring, with adjacent magnets having opposite polarities to form a boundary line. The annular magnetic ring is spaced apart from the Hall sensors, and the two Hall sensors can sense the sequence of magnetic changes of the magnets to change the gear position.

[0009] Furthermore, the annular magnetic ring is divided into multiple magnets at angles of 22.5°, 30°, 36°, or 45° according to the gear distribution relationship, and the Hall sensor is configured in conjunction with the magnets.

[0010] Furthermore, each of the magnets has an axisymmetric plane relative to the annular magnetic ring, and the axisymmetric plane equally divides the magnet; two Hall sensors are arranged opposite the same or different magnets, and the two Hall sensors are respectively arranged on the counterclockwise side or the clockwise side of any of the axisymmetric planes.

[0011] Furthermore, the distance between the two Hall sensors and the axisymmetric plane of their corresponding magnets is equal.

[0012] Furthermore, the Hall sensor is a latching switch Hall sensor.

[0013] Furthermore, the Hall sensor assembly also includes a PCB board, which is fixedly connected to the base, and the Hall sensor is fixedly connected to the PCB board.

[0014] Furthermore, a connecting ring is provided between the base and the PCB board, the annular magnetic ring is sleeved on the connecting ring and is configured to fit the connecting ring with a gap, and the two ends of the connecting ring are fixedly connected to the base and the PCB board respectively.

[0015] Furthermore, the knob includes a cover that is fitted onto the annular magnetic ring. The inner wall of the cover is fixedly connected to the annular magnetic ring, and the bottom of the cover is rotatably connected to the base via a bearing.

[0016] Furthermore, the cover is marked with R, N and D positions.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention relates to a rotary electronic gear shifter with full-circumference sensing, equipped with a Hall effect sensing component. The Hall effect sensing component includes a ring magnetic coil and two Hall sensors. The ring magnetic coil is fixedly connected to the knob, and the Hall sensors are fixedly mounted on a base. Multiple magnets are evenly distributed on the ring magnetic coil, with adjacent magnets having opposite polarities. The ring magnetic coil is spaced apart from the Hall sensors and mutually senses each other. The arrangement of the magnets generates a periodic magnetic field change. When the knob is rotated, the magnets sequentially pass through the sensing areas of the Hall sensors, causing changes in the magnetic field strength and direction detected by the two Hall sensors. The rotation direction and angle of the knob are determined based on the changes in the electrical signal generated by the magnetic field change. By calculating the magnetic field change pattern, the current gear position of the knob can be accurately determined. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the Hall effect sensing component in this utility model. Figure 1 ;

[0022] Figure 3 This is a schematic diagram of the Hall effect sensing component in this utility model. Figure 2 ;

[0023] Figure 4 This is a schematic diagram of the structure of the annular magnetic ring in this utility model;

[0024] Figure 5 This is a schematic diagram of the connection structure between the PCB board and the Hall sensor in this utility model;

[0025] Figure 6 This is a schematic diagram of the arrangement of the annular magnetic coil and the Hall sensor in this utility model.

[0026] Figure 7 This is a schematic diagram illustrating the logic of the interaction between the magnet of the annular magnetic coil and the Hall sensor in this invention. Figure 1 ;

[0027] Figure 8 This is a schematic diagram illustrating the logic of the interaction between the magnet of the annular magnetic coil and the Hall sensor in this invention. Figure 2 .

[0028] In the diagram, 100 represents the base.

[0029] 200. Knob; 210. Cover; 211. Marking;

[0030] 300. Hall effect sensor assembly; 310. Ring magnet; 311. Magnet; 320. Hall sensor; 321. Hall A; 322. Hall B; 330. PCB board. Detailed Implementation

[0031] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0032] This embodiment describes a rotary electronic gear shifter with full-circuit sensing, which relates to the field of automotive control technology. It adopts a switch Hall effect sensing technology to replace the existing dual-channel optocoupler technology or angle Hall effect technology. The switch Hall effect sensing system uses magnetic induction to adjust the gear position. Dust accumulated inside the knob 200 has no effect on the sensing, making the function more reliable.

[0033] Please see Figures 1 to 6This embodiment of a rotary electronic gear shifter with full-circumference sensing includes: a base 100, a knob 200, and a Hall effect sensor 300. The base 100 is connected to the vehicle body and remains stationary. The knob 200 is rotatably connected to the base 100, allowing for gear adjustment via rotation. The Hall effect sensor 300 uses magnetic induction to adjust the gear position, thereby avoiding interference and influence from dust on the gear shifter.

[0034] The Hall effect sensor assembly 300 includes an annular magnetic coil 310 and two Hall effect sensors 320. The annular magnetic coil 310 is fixedly connected to the knob 200, and the Hall effect sensors 320 are fixedly mounted on the base 100. Multiple magnets 311 are evenly distributed on the annular magnetic coil 310, with adjacent magnets 311 having opposite polarities, forming a magnetic boundary line. The annular magnetic coil 310 is spaced apart from the Hall effect sensors 320. The arrangement of the magnets 311 generates a periodic change in the magnetic field. When the knob 200 rotates, the magnets 311 sequentially pass through the sensing area of ​​the Hall effect sensors 320, causing changes in the magnetic field strength and direction detected by the two Hall effect sensors 320. The rotation direction and angle of the knob 200 are determined based on the changes in the electrical signal generated by the magnetic field changes. By calculating the pattern of magnetic field changes, the current gear position of the knob 200 can be accurately determined.

[0035] In some embodiments, please refer to Figures 3 to 6 The annular magnetic coil 310 is customized with multiple corresponding positions according to predetermined requirements, and the number of magnets is determined by the position allocation relationship. In specific implementation, the annular magnetic coil 310 is divided into multiple magnets 311 at equal angles of 22.5°, 30°, 36°, or 45°, and the Hall sensor 320 is configured in conjunction with the magnets 311. By dividing the annular magnetic coil 310 into equal angles of 22.5°, 30°, 36°, and 45°, the angular distance between each magnet 311 is smaller, thus allowing for more precise sensing of the rotation position of the knob 200. The smaller angular intervals allow the Hall sensor 320 to detect changes in the magnetic field more frequently, thereby providing higher precision in rotation angle detection.

[0036] In some embodiments, please refer to Figure 4 and Figure 6 The magnet 311 has an axisymmetric plane relative to the annular magnetic ring 310, which divides each magnet 311 into two equal parts. In the initial position or the stop position, the two Hall sensors 320 are respectively positioned on the counterclockwise or clockwise side of either axisymmetric plane. When the annular magnetic ring 310 rotates relative to the Hall sensors 320, the two Hall sensors 320 sense the dividing line successively, thereby realizing the positioning and confirmation of the rotation direction and position.

[0037] It should be noted that if 22.5° is taken as a unit radian, and the two Hall sensors 320 are respectively set on the counterclockwise side or the clockwise side of any axis of symmetry, the actual meaning is that the two Hall sensors are spaced (N, N+1) unit radians apart, where N is a set of natural numbers.

[0038] As a further implementation, the distance between the two Hall sensors 320 and the axisymmetric plane of their corresponding magnets is equal. The Hall sensors 320 can be triggered by rotating the annular magnetic ring by the same angle, which results in higher accuracy and stronger operability.

[0039] In practical implementation, if the annular magnetic ring 310 is divided into 22.5° sections, then rotating the knob 200 by a small angle (e.g., 22.5°) can trigger the Hall sensor 320 to change the signal, thereby achieving precise gear switching.

[0040] Two Hall effect sensors 320, Hall A321 and Hall B322, are located near the left boundary line of magnet 311, and Hall B322 is near the right boundary line of magnet 311. In principle, the sensor closer to the boundary line senses the change first. The system identifies the rotation direction of knob 200 by the order in which the two Hall sensors sense the change. As shown in the table below, if the microcontroller detects a change first in Hall A, it determines that knob 200 is rotated clockwise; if the microcontroller detects a change first in Hall B322, it determines that knob 200 is rotated counterclockwise. Combined with the shift logic definition in the table below, a shift request signal from the driver can be sent.

[0041]

[0042] Example as follows;

[0043] If the current gear is identified as N (Neutral): When knob 200 is turned counterclockwise, the microcontroller detects the change first through Hall effect sensor B322, and determines that the gear is R (Reverse). If knob 200 is continuously turned counterclockwise, and the microcontroller detects the change first through Hall effect sensor B322, and the change occurs multiple times, it determines that the gear is R.

[0044] When knob 200 is turned clockwise, the microcontroller detects the change first through Hall A321, and determines that the gear is D. If knob 200 is turned clockwise repeatedly, and the microcontroller detects the change first through Hall A321, and the change occurs multiple times, it determines that the gear is D.

[0045] If the current gear is identified as R: When knob 200 is turned counterclockwise, the microcontroller detects the change first through Hall effect sensor B322, and determines that the gear is R if knob 200 is turned counterclockwise. If knob 200 is turned counterclockwise continuously, and the microcontroller detects the change first through Hall effect sensor B322, and the change occurs multiple times, then the microcontroller determines that the gear is R if knob 200 is turned counterclockwise continuously.

[0046] When knob 200 is turned clockwise, the microcontroller detects the change first through Hall effect sensor A321, and determines that the gear is N (Neutral) when knob 200 is turned clockwise. If knob 200 is turned clockwise continuously, and the microcontroller detects the change first through Hall effect sensor A321, and the change occurs multiple times in a row, then determines that the gear is D (Drive) when knob 200 is turned clockwise continuously.

[0047] If the current gear is identified as D: when knob 200 is turned left, the microcontroller detects the change first through Hall effect B322, and determines that the gear is N. If knob 200 is turned left continuously, and the microcontroller detects the change first through Hall effect B322, and the change occurs multiple times, then determines that the gear is R.

[0048] When knob 200 is turned clockwise, the microcontroller detects the change first through Hall A321, and determines that the gear is D. If knob 200 is turned clockwise repeatedly, and the microcontroller detects the change first through Hall A321, and the change occurs multiple times, it determines that the gear is D.

[0049] The Hall sensor 320 is preferably a latching switch Hall sensor 320. The main feature of the latching Hall sensor 320 is its state latching function. When the sensor senses a change in the magnetic field and switches states, it maintains this state until the magnetic field direction reverses. This means that the sensor is not affected by short-term noise or rapid magnetic field fluctuations; it only responds when the magnetic field reverses or undergoes a significant change. This provides the system with more tolerance in the environment, enhancing its anti-interference capability and stability. Of course, the Hall sensor 320 can also be a regular Hall sensor, as long as it has basic functions to meet the corresponding requirements.

[0050] Please see Figure 6 The annular structure of the annular magnetic coil 310 is cut open and equivalently unfolded into a plane. Hall A321 and Hall B322 are respectively set at the gray and black points in the figure. The annular magnetic coil 310 moves relative to a straight line, and the dividing line will contact the Hall sensor 320 located at different points one after another, and the Hall sensor 320 is triggered.

[0051] As an alternative implementation, please refer to Figure 7The Hall sensor 320 is a common polarity switch Hall sensor 320. The Hall sensor 320 is set at the gray and black points, and both are set in the same polarity.

[0052] In some embodiments, please refer to Figures 1 to 3 The Hall sensor assembly 300 also includes a PCB board 330, which is fixedly connected to the base 100. The Hall sensor 320 is also fixedly connected to the PCB board 330. This fixed connection structure between the Hall sensor 320 and the PCB board 330, and between the PCB board 330 and the base 100, effectively ensures the positional accuracy and stability of all components. This fixed connection structure prevents loosening or displacement of components during use, ensuring the sensor is always in its optimal working position and reducing measurement errors or performance instability caused by improper component positioning.

[0053] In some embodiments, a connecting ring is provided between the base 100 and the PCB board 330, and an annular magnetic ring 310 is sleeved on the connecting ring and is configured to fit the connecting ring with a gap. The annular magnetic ring 310 can rotate around the connecting ring, and the annular magnetic ring 310 maintains a gap with the connecting ring, thereby avoiding friction and wear between the two.

[0054] The two ends of the connecting ring are fixedly connected to the base 110 and the PCB board 330, respectively. As an intermediary component, the connecting ring helps to stabilize and support the annular magnetic ring 310, ensuring its accurate positioning. By setting a gap fit between the annular magnetic ring 310 and the connecting ring, it can be ensured that the magnetic ring will not be displaced or deformed due to external forces (such as vibration, temperature changes, etc.) during installation, keeping the magnetic ring in the optimal working position.

[0055] In some embodiments, the knob 200 includes a cover 210, which is sleeved on the annular magnetic ring 310. The inner wall of the cover 210 is fixedly connected to the annular magnetic ring 310. The rotation of the cover 210 can drive the annular magnetic ring 310 to rotate synchronously, thereby adjusting different gears.

[0056] The inner wall of the cover 210 is fixedly connected to the annular magnetic ring 310, which can ensure a firm connection between the cover 210 and the annular magnetic ring 310. This can prevent displacement or loosening between the cover 210 and the annular magnetic ring 310 when the knob 200 is rotated, thus ensuring the stability of the system during long-term operation.

[0057] The bottom of the cover 210 is rotatably connected to the base 110 via a bearing, which allows the knob 200 to rotate smoothly and stably, greatly reducing the resistance or vibration caused by friction or uneven rotation.

[0058] In some embodiments, please refer to Figure 1The cover 210 has markings 211 for R (Reverse), N (Neutral), and D (Drive) gears. These markings allow users to easily identify the current gear when operating the knob 200 or control device. This visually intuitive labeling reduces cognitive load, especially in scenarios requiring quick reactions, such as driving, helping users select gears more conveniently and quickly.

[0059] When shifting gears, users can use their senses to confirm whether they have accurately entered the required gear, avoiding problems such as incomplete gear shifting or inability to enter the correct gear due to unclear vision or improper operation.

[0060] Working Process: During the rotation of the annular magnetic coil 310, a magnetic abrupt change occurs between two adjacent magnets 311. This change in the magnetic field of the annular magnetic coil 310 can be detected in real time by a Hall sensor 320 installed near the base 110 of the knob 200. The Hall sensor 320 utilizes the Hall effect principle; when the sensor passes through a magnetic field, a voltage difference is generated across it. The sensor converts this voltage difference into an electronic signal. The output signal of the Hall sensor 320 is related to the rotation angle of the knob 200 and the change in the magnetic field. The number and configuration of sensors determine the detection accuracy and range.

[0061] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the present utility model.

Claims

1. A full circumference inductive rotary knob electronic shift operator characterized by, include: The base is used to connect to the vehicle body; The knob is rotatably connected to the base. The Hall effect sensor assembly includes an annular magnetic ring fixedly connected to the knob and two Hall sensors fixedly connected to the base. Multiple magnets are evenly distributed on the annular magnetic ring, with adjacent magnets having opposite polarities to form a boundary line. The annular magnetic ring is spaced apart from the Hall sensors, and the two Hall sensors can sense the sequence of magnetic changes of the magnets to change the gear position.

2. A full perimeter inductive rotary knob electronic shift operator as defined in claim 1 wherein, The annular magnetic ring is divided into multiple magnets at angles of 22.5°, 30°, 36° or 45° according to the gear distribution relationship, and the Hall sensor is configured in conjunction with the magnets.

3. A full perimeter inductive rotary knob electronic shift operator as defined in claim 1 wherein, Each of the magnets has an axisymmetric plane relative to the annular magnetic ring, and the axisymmetric plane equally divides the magnet; two Hall sensors are arranged opposite the same or different magnets, and the two Hall sensors are respectively arranged on the counterclockwise side or the clockwise side of any of the axisymmetric planes.

4. A full perimeter inductive rotary knob electronic shift operator as defined in claim 3 wherein, The distance between the two Hall sensors and the axisymmetric plane of their corresponding magnets is equal.

5. A full perimeter inductive rotary knob electronic shift operator as defined in claim 4 wherein, The Hall sensor is a latching switch Hall sensor.

6. A full perimeter inductively coupled rotary electronic gear shift knob according to claim 1, wherein, The Hall sensor assembly also includes a PCB board, which is fixedly connected to the base, and the Hall sensor is fixedly connected to the PCB board.

7. A full perimeter inductively coupled rotary electronic gear shift control as defined in claim 6 wherein, A connecting ring is provided between the base and the PCB board. The annular magnetic ring is sleeved on the connecting ring and is configured to fit the connecting ring with a gap. The two ends of the connecting ring are fixedly connected to the base and the PCB board, respectively.

8. A full perimeter inductively coupled rotary electronic gear shift actuator according to claim 7, wherein, The knob includes a cover that is fitted onto the annular magnetic ring. The inner wall of the cover is fixedly connected to the annular magnetic ring, and the bottom of the cover is rotatably connected to the base via a bearing.

9. A rotary electronic gear shifter with full-circumference sensing according to claim 8, characterized in that, The cover is marked with R, N and D positions.

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