A vehicle lever status detection assembly and vehicle
By integrating a Hall sensor with a flexible circuit board on the lever and working in conjunction with a magnet, the problem of increased size and cost of the steering column switch module caused by the arrangement of the Hall sensor and magnet is solved. This achieves flexibility and reliability in lever position detection, and reduces deployment difficulty and cost.
Patent Information
- Application Number
- CN202310902922.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-21
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2043-07-21
AI Technical Summary
In existing vehicle lever status detection solutions, the arrangement of Hall sensors and magnets leads to an increase in the size and cost of the steering column switch module, and the connection is complex, making it difficult to achieve reliable and accurate lever position detection in a limited space.
A flexible circuit board is used to integrate the Hall sensor onto the lever, and the flexible circuit board is connected to the main PCB board in the steering column switch module. The Hall sensor moves within the effective magnetic field area of the magnet as the lever is moved, achieving flexible deployment and avoiding additional connection components.
The size of the main PCB board of the steering column switch module has been reduced, which has lowered the assembly cost, improved the flexibility and reliability of testing, reduced the difficulty of deployment, and enhanced the flexibility of space design.
Smart Images

Figure CN116929792B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of driver assistance systems, and more specifically, relates to vehicle lever status detection technology. Background Technology
[0002] The levers (i.e., paddles) under the vehicle's steering wheel have multiple functions, typically including the following two types: one is the vehicle's headlight control lever, and the other is the vehicle's windshield wiper control lever.
[0003] The light control lever controls the on / off state of the corresponding turn signals, low beam headlights, high beam headlights, and fog lights on the vehicle according to different toggle states; the wiper control lever controls the on / off state of the vehicle's wipers and the use of windshield washer fluid; and the steering column switch module in the vehicle effectively detects the position of the lever to generate control signals, such as left or right turn signals or wiper speed control signals.
[0004] To accurately detect the position of a lever, many mature solutions exist, one of which is a detection scheme based on a magnet and a Hall sensor. This scheme works by utilizing the different angles of magnetic vectors formed in the magnetic field surrounding the magnet. The Hall sensor can effectively read the angle of these magnetic vectors. Thus, when the magnet is moved near the Hall sensor, the sensor can identify the different angles of the magnetic vectors. Based on this, by simply applying the correct magnetic angle to each lever position, the Hall sensor can accurately identify the position of each lever.
[0005] In practical applications, the main PCB board in the steering column switch module acquires and processes the signals generated by the Hall sensor. Due to the magnetic field characteristics of the magnet, the area around the magnet does not always meet the detection requirements. Therefore, to ensure the reliability of the cooperation between the Hall sensor and the magnet, the Hall sensor and the magnet need to be placed in specific spatial areas. At the same time, considering the absolute linearity of the internal space of the steering column, this brings considerable difficulties to the connection setup between the Hall sensor and the main PCB board in the steering column switch module.
[0006] See Figure 1 The diagram shows the first configuration of the Hall sensor and magnet in the steering column switch module in the existing scheme.
[0007] In this scheme, the Hall sensor 5 is directly mounted on the main PCB board 3 in the steering column switch module 2, and the magnet 4 is correspondingly mounted on the actuating end of the lever 1 located in the steering column switch module 2.
[0008] In practical applications, due to the limited range of motion of the lever 1, the Hall sensor 5 needs to be placed within the range of motion of the magnet 4. This requires a larger main PCB board 3 to meet functional requirements. However, a larger main PCB board 3 requires more space within the steering column switch module 2, thus increasing its size. This results in both increased size and weight of the steering column switch module 2, failing to meet practical application needs and significantly increasing costs.
[0009] See Figure 2 The diagram shows a second configuration of the Hall sensor and magnet in the steering column switch module in the existing scheme.
[0010] In this scheme, the Hall sensor 5 is independently installed in the steering column switch module 2 and connected to the main PCB board 3 in the steering column switch module 2 via the connecting component 6; correspondingly, the magnet 4 is installed on the actuating end of the lever 1 located in the steering column switch module 2.
[0011] This setup requires additional connection components, such as a separate wiring harness, and additional connectors or interfaces on the main PCB board 3. This not only significantly increases costs, but also requires an external interface on the main PCB for connection with the Hall sensor, increasing the size of the main PCB and requiring more installation space during deployment. Summary of the Invention
[0012] To address the problems existing in current vehicle lever position status detection schemes, the present invention aims to provide a vehicle lever status detection component with flexible assembly scheme, small footprint, and low assembly cost; based on this, the present invention further provides a vehicle using the vehicle lever status detection component.
[0013] To achieve the above objectives, the present invention provides a vehicle lever status detection component, comprising a Hall sensor and a magnet. The Hall sensor is mounted on a flexible circuit board in the vehicle lever for connecting the lever's functions to the main PCB board in the steering column switch module. The Hall sensor extends along the flexible circuit board and is distributed within the effective magnetic field area of the magnet. The Hall sensor and the magnet are capable of relative movement according to the lever's movement.
[0014] In some embodiments of the present invention, the Hall sensor is mounted on a flexible circuit board by welding and is electrically connected to the circuitry in the flexible circuit board.
[0015] In some embodiments of the present invention, the Hall sensor is electrically connected to the main control board in the steering column switch module via a flexible circuit board in the vehicle lever.
[0016] In some embodiments of the present invention, the magnet is fixed relative to the lever, and the Hall sensor is capable of moving relative to the magnet as the lever is turned.
[0017] In some embodiments of the present invention, the Hall sensor is fixedly mounted on the lever based on a flexible circuit board, and the magnet is fixedly mounted in the steering column switch module relative to the Hall sensor.
[0018] In some embodiments of the present invention, the flexible circuit board extends along the lever into the steering column switch module, and a Hall sensor is placed at the location corresponding to the magnet.
[0019] In some embodiments of the present invention, the Hall sensor is fixed relative to the lever, and the magnet is capable of moving relative to the Hall sensor as the lever is turned.
[0020] In some embodiments of the present invention, the Hall sensor is fixedly mounted in the steering column switch module relative to the lever based on a flexible circuit board; the magnet is fixedly mounted on the lever.
[0021] In some embodiments of the present invention, the flexible circuit board extends independently into the steering column switch module, and a Hall sensor is placed at the location corresponding to the magnet.
[0022] To achieve the above objectives, the present invention provides a vehicle in which the aforementioned vehicle lever status detection component is installed in the steering column switch module.
[0023] The vehicle lever status detection component solution provided by this invention achieves a reliable electrical connection between a Hall sensor and the main PCB board in the steering column switch module based on a flexible circuit board in the vehicle lever. Simultaneously, it enables flexible deployment of the Hall sensor relative to the magnet within the steering column switch module, allowing the Hall sensor to be set independently of the main PCB board. This simplifies the structure and function of the main PCB board in the steering column switch module, thereby reducing its size. The Hall sensor is directly electrically connected to the main PCB board in the steering column switch module via the flexible circuit board in the vehicle lever, avoiding the use of separate connection components and significantly reducing deployment costs. Furthermore, the flexibility and extensibility of the flexible circuit board allow for flexible deployment within the steering column switch module, greatly reducing the difficulty of deploying the entire detection component within the module and significantly improving the flexibility of the internal space design of the steering column switch module. Attached Figure Description
[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0025] Figure 1 This is an example diagram of a possible arrangement of a Hall sensor and a magnet in a steering column switch module in the prior art.
[0026] Figure 2 This is an example diagram of another possible combination scheme for Hall sensors and magnets in steering column switch modules in the prior art;
[0027] Figure 3 This is a schematic diagram illustrating the structural principle of the vehicle lever state detection component that uses a magnet as a moving part in this invention.
[0028] Figure 4 This is an example diagram illustrating the structural application of the vehicle lever state detection component that uses a magnet as a moving part in this invention.
[0029] Figure 5 This is an example diagram of the distribution structure of the flexible circuit board in the vehicle lever state detection component that uses a magnet as a moving part in this invention.
[0030] Figure 6 This is a schematic diagram illustrating the structural principle of the vehicle lever state detection component using a Hall sensor as a moving part in this invention.
[0031] Figure 7 This is an example diagram illustrating the application of the vehicle lever state detection component structure using a Hall sensor as a moving part in this invention. Detailed Implementation
[0032] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.
[0033] With the increasing number of functions integrated on the lever, it is particularly important to reliably and accurately detect the lever's position within the limited space inside the steering column switch module.
[0034] Furthermore, when position detection is achieved based on the cooperation between a magnet and a Hall sensor, the relative position of the magnet and the Hall sensor must meet the sensor's requirements for sensing the magnetic field.
[0035] Furthermore, the rotation positions of the levers are preset for different functions. Therefore, when installing magnets and Hall sensors in the steering column switch module, the positions of the magnets also need to be indirectly fixed within a certain range.
[0036] The simultaneous constraints of the above three situations impose significant technical limitations on the placement of magnets and Hall sensors within the steering column switch module.
[0037] In this context, the present invention utilizes a Hall sensor in conjunction with a magnet to construct a corresponding vehicle lever status detection component. It innovatively integrates the Hall sensor directly into a flexible circuit board within the vehicle lever, connecting the lever's functions to the main PCB board of the steering column switch module. Leveraging the flexibility and extensibility of the flexible circuit board, the Hall sensor extends along with it and is distributed within the effective magnetic field area of the magnet. Simultaneously, the Hall sensor on the flexible circuit board within the vehicle lever and the magnet can move relative to each other based on the lever's movement, thereby achieving inductive coordination to detect the vehicle lever's position status. This overcomes the dual limitations of internal space and assembly cost within the steering column switch module, achieving a very high application efficiency.
[0038] In this invention, when the Hall sensor is directly integrated into the flexible circuit board of the main PCB board in the vehicle lever for connecting the lever's functions with the steering column switch module, it is preferably soldered onto the flexible circuit board using a surface mount process, thereby ensuring the stable placement of the Hall sensor on the flexible circuit board.
[0039] As an example, when a Hall sensor is mounted on a flexible circuit board, the functional pins on the Hall sensor are directly connected to the extended lines on the flexible circuit board. In this way, the sensing signal generated by the Hall sensor can be directly transmitted to the main PCB board through the flexible circuit board without affecting the normal signal transmission of other functional lines on the flexible circuit board.
[0040] In some embodiments of the present invention, when the vehicle lever status detection component is deployed in the steering column switch module, the Hall sensor integrated on the flexible circuit board in the lever can be deployed as a fixed component, while the cooperating magnet can be deployed as a moving component.
[0041] See Figure 3 The diagram shows an example of a vehicle lever state detection assembly deployed in a steering column switch module 50, with the Hall sensor 10 as a fixed component and the magnet 20 as a moving component.
[0042] In this example, the Hall sensor 10 is directly integrated into the flexible circuit board 40 of the vehicle lever 30, which is used to connect the lever's functions to the main PCB board in the steering column switch module.
[0043] The flexible circuit board 40 is installed in the vehicle lever 30 to connect the corresponding lever function 31 on the vehicle lever 30, and extends from the vehicle lever 30 to the steering column switch module 50. It is electrically connected to the main PCB board 60 in the steering column switch module, and can transmit the control signal generated by the corresponding lever function 31 on the vehicle lever 30 to the main PCB board 60 in the steering column switch module.
[0044] At the same time, the Hall sensor 10 integrated on the flexible circuit board 40 will also transmit the sensing signal generated by the flexible circuit board 40 directly to the main PCB board 60 in the steering column switch module.
[0045] Furthermore, the Hall sensor 10 is integrated onto the extension of the flexible circuit board 40 within the steering column switch module 50. The extension of the flexible circuit board 40 within the steering column switch module 50 has sufficient length and deformation allowance to ensure the Hall sensor 10 is fixedly mounted within the steering column switch module 50. The Hall sensor 10, thus fixedly distributed relative to the lever 30 within the steering column switch module 50, is thus positioned...
[0046] In conjunction with this, the magnet 20 is directly mounted on the swing part of the vehicle lever 30 located in the steering column switch module 50. It is a moving part relative to the Hall sensor 10 and can move relative to the fixed Hall sensor 10 as the lever 30 is moved.
[0047] It should be noted that the distribution of the magnet 20 and the Hall sensor 10 is such that the sensing area of the Hall sensor 10 is located within the effective magnetic field area generated by the magnet 20.
[0048] As a further example, see Figure 4 The illustration shows an application example of a vehicle lever state detection assembly, in which a Hall sensor 10 is a fixed component and a magnet 20 is a moving component, deployed in a steering column switch module 50.
[0049] As shown in the figure, when the vehicle lever status detection component with magnet 20 as the moving part is deployed and assembled, magnet 20 as the moving part is fixedly mounted on the swing part of the vehicle lever 30 that extends into the steering column switch module 50 by a corresponding magnet fixing bracket 21.
[0050] To facilitate the distribution and arrangement of the Hall sensor 10 integrated on the flexible circuit board 40 within the lever and to ensure the reliability of their cooperation, the magnet 20 is preferably distributed at a certain angle. This gives the Hall sensor 10 greater deployment freedom and also ensures that the magnet 20 remains within the sensing range of the Hall sensor 10 when the vehicle lever 30 moves relative to the Hall sensor 10, thus ensuring sensing sensitivity.
[0051] In addition, since the vehicle lever 30 needs to be moved, in order to ensure the stability of the connection between the magnet 20 and the vehicle lever 30, a corresponding magnet fixing bracket 21 is provided on the upper part of the swing part inside the steering column switch module 50 where the vehicle lever 30 extends into the deployment position of the magnet 20. The magnet fixing bracket 21 can be integrally formed on the vehicle lever 30, or it can be a separate component installed on the vehicle lever 30.
[0052] The specific structural form of the magnet fixing bracket 21 can be determined according to actual needs to match the deployment of the magnet 20. Based on this, the magnet 20 is fixedly mounted on the magnet fixing bracket 21. For the specific fixing structure, an assembly-type fixing structure such as snap-fit or riveting can be used, or an insert injection molding fixing structure can be used.
[0053] The flexible circuit board 40 inside the lever 30 has one end electrically connected to the lever function 31 on the lever 30, and the other end extends from inside the lever 30 into the interior of the steering column switch module 50, and is electrically connected to the main PCB board 60 in the steering column switch module 50 through a corresponding connector 44.
[0054] Based on this, the Hall sensor 10 is integrated on the extension of the flexible circuit board 40 within the steering column switch module 50. The specific integration location can be determined according to actual needs, thus making the extension of the flexible circuit board 40 within the steering column switch module 50 into a first extension 41, an integration part 42, and a second extension 43.
[0055] The integration section 42 is used to integrate the Hall sensor 10; the first extension section 41 is distributed between the lever 30 and the integration section 42, serving as a deformable part to support the movement of the lever 30 in the steering column switch module 50, that is, it can deform accordingly with the movement of the lever 30 in the steering column switch module 50; the second extension section 43 is distributed between the integration section 42 and the connector 44 as an extension transmission part, and can adapt to the internal structure of the steering column switch module 50 based on its own flexible deformation.
[0056] The Hall sensor 10, together with the integrated portion 42 on the flexible circuit board 40, is fixedly mounted on a corresponding fixed bracket 11. The fixed bracket 11 is fixedly mounted inside the steering column switch module 50 and enables the Hall sensor 10 mounted thereon to be distributed relative to the magnet 20 on the lever 30, so that the Hall sensor 10 is located within the effective magnetic field generated by the magnet 20.
[0057] As an example, the specific structure of the fixed bracket 11 can be determined according to actual needs to match the deployment of the Hall sensor 10 relative to the magnet 20. For example, if the fixed bracket 11 has a mounting surface facing the magnet 20, the Hall sensor 10 together with the integrated part 42 on the flexible circuit board 40 can be fixed on the mounting surface of the fixed bracket 11 by means of bonding or embedding, so that the Hall sensor 10 is fixedly distributed relative to the magnet 20.
[0058] As a further supplementary example, see Figure 5 The flexible circuit board 40 here is located in the extension portion (including the first extension portion 41, the integrated portion 42 and the second extension portion 43) within the steering column switch module 50. It is preferably distributed below the mating structure between the lever 30 and the steering column switch module 50. This allows for a larger mating structure space and greater degree of freedom between the lever 30 and the steering column switch module 50. At the same time, it can also avoid the impact of the lever 30's movement relative to the steering column switch module 50 on the flexible circuit board 40.
[0059] like Figure 5 As shown, when the flexible circuit board 40 is distributed, when it extends along the lever 30 into the steering column switch module 50, it is distributed below the structure where the lever 30 and the steering column switch module 50 cooperate. The first extension 41 extends in a certain bent state, which allows the first extension 41 to have a large extension and retraction adjustment margin to adapt to the actual installation structure adjustment.
[0060] Based on this, the first extension 41 serves as an integration part 42 at the mounting surface of the adapter bracket 11. The integration part 42 extends with lines connecting the Hall sensor 10 for integrating the Hall sensor 10.
[0061] Based on this, a second extension 43 is formed by extending outward from the side of the integrated part 42. The second extension 43 extends to the side of the structure where the lever 30 and the steering column switch module 50 cooperate through a bending structure, effectively avoiding the relative action cooperation area between the lever 30 and the steering column switch module 50, avoiding the influence of the lever 30 on the flexible circuit board, and ensuring the stability and reliability of the connection of the flexible circuit board 40.
[0062] As a further supplementary example, the Hall sensor 10 here, in conjunction with the magnet 20 deployment scheme, is also preferably distributed at a certain angle, with the formed sensing area facing the magnet 20. This ensures that when the magnet 20 moves relative to the Hall sensor 10 with the vehicle lever 30, the magnet 20 is always within the sensing range of the Hall sensor 10, thus ensuring sensing sensitivity.
[0063] As a further example, the Hall sensor 10 here can be a 2D Hall sensor or a 3D Hall sensor, depending on the actual needs.
[0064] In this application example, the vehicle lever status detection component, when working in conjunction with the lever 30 and the steering column switch module 50, allows the magnet 20 to move synchronously relative to the Hall sensor 10 as the lever 30 is moved. Since the movement of the magnet 20 is always within the sensing range of the Hall sensor 10, the fixed Hall sensor 10 can accurately and sensitively detect the movement direction of the magnet 20 and generate a corresponding sensing signal. This sensing signal is then synchronously transmitted through the flexible circuit board 40 to the main PCB board 60 in the steering column switch module 50. The main PCB board 60 in the steering column switch module 50 can then calculate and determine the position of the vehicle lever based on this signal. Based on this, the main PCB board 60 generates corresponding control commands according to the function corresponding to the calculated position of the vehicle lever.
[0065] In this vehicle lever status detection component, the magnet 20 is used as the moving part. It achieves electrical performance with the Hall sensor 10 through non-contact communication, resulting in higher functional sensitivity. In practical applications, it has lower operating noise, longer service life, and higher reliability.
[0066] In some embodiments of the present invention, when the vehicle lever status detection component is deployed in the steering column switch module, the Hall sensor integrated on the flexible circuit board in the lever can be deployed as a moving part, while the cooperating magnet can be deployed as a fixed part.
[0067] See Figure 6 The diagram shows an example of a vehicle lever state detection assembly deployed in a steering column switch module 50, with the Hall sensor 10 as a moving part and the magnet 20 as a fixed part.
[0068] In this example, the Hall sensor 10 is directly integrated into the flexible circuit board 40 of the vehicle lever 30, which is used to connect the lever's functions to the main PCB board in the steering column switch module.
[0069] The flexible circuit board 40 is installed in the vehicle lever 30 to connect the corresponding lever function 31 on the vehicle lever 30, and extends from the vehicle lever 30 to the steering column switch module 50. It is electrically connected to the main PCB board 60 in the steering column switch module, and can transmit the control signal generated by the corresponding lever function 31 on the vehicle lever 30 to the main PCB board 60 in the steering column switch module.
[0070] At the same time, the Hall sensor 10 integrated on the flexible circuit board 40 will also transmit the sensing signal generated by the flexible circuit board 40 directly to the main PCB board 60 in the steering column switch module.
[0071] Furthermore, the Hall sensor 10 is integrated onto the extension of the flexible circuit board 40 within the steering column switch module 50. The extension of the flexible circuit board 40 within the steering column switch module 50 has sufficient length and deformation allowance to allow the Hall sensor 10 to be fixedly mounted on the swing portion of the vehicle lever 30 within the steering column switch module 50. This configuration allows the Hall sensor 10 to synchronously generate corresponding movement within the steering column switch module 50 as the lever 30 is moved.
[0072] Correspondingly, the magnet 20 is directly fixed in the steering column switch module 50 relative to the Hall sensor 10 on the vehicle lever 30. It is a fixed component relative to the lever 30 and the Hall sensor 10 on it, and is fixedly distributed in the steering column switch module 50.
[0073] It should be noted that the distribution of the magnet 20 and the Hall sensor 10 is such that the sensing area of the Hall sensor 10 is located within the effective magnetic field area generated by the magnet 20. That is, when the Hall sensor 10 moves relative to the magnet 20 as the vehicle lever 30 is turned, its sensing area is also located within the effective magnetic field area generated by the magnet 20.
[0074] As a further example, see Figure 7 The illustration shows an application example of a vehicle lever state detection assembly, in which a Hall sensor 10 is used as a moving part and a magnet 20 is used as a fixed part, deployed in a steering column switch module 50.
[0075] As shown in the figure, when the vehicle lever state detection component with Hall sensor 10 as the moving part is deployed and assembled, the magnet 20, as the fixed part, is fixedly installed in the steering column switch module 50 by the corresponding magnet fixing bracket 21.
[0076] To facilitate the distribution and arrangement of the Hall sensors 10 integrated on the flexible circuit board 40 within the lever and to ensure the reliability of their cooperation, the magnet 20 here...
[0077] To facilitate the distribution and arrangement of the Hall sensor 10 integrated on the flexible circuit board 40 within the lever and to ensure the reliability of their cooperation, the magnet 20 is preferably distributed at a certain angle. This gives the Hall sensor 10 greater deployment freedom and also ensures that when the Hall sensor 10 moves relative to the magnet 20 with the vehicle lever 30, the sensing range generated can always cover the fixed magnet 20, thus ensuring sensing sensitivity.
[0078] The magnet 20 is fixedly installed in the steering column switch module 50 by a magnet fixing bracket 21. The magnet fixing bracket 21 can be integrally formed in the steering column switch module 50, or it can be installed in the steering column switch module 50 as an independent component.
[0079] The specific structural form of the magnet fixing bracket 21 can be determined according to actual needs to match the deployment of the magnet 20. Based on this, the magnet 20 is fixedly mounted on the magnet fixing bracket 21. For the specific fixing structure, an assembly-type fixing structure such as snap-fit or riveting can be used, or an insert injection molding fixing structure can be used.
[0080] The flexible circuit board 40 inside the lever 30 has one end electrically connected to the lever function 31 on the lever 30, and the other end extends from inside the lever 30 into the interior of the steering column switch module 50, and is electrically connected to the main PCB board 60 in the steering column switch module 50 through a corresponding connector 44.
[0081] Based on this, the Hall sensor 10 is integrated on the extension of the flexible circuit board 40 located within the steering column switch module 50. The specific integration location can be determined according to actual needs.
[0082] The flexible circuit board 40 here is located within the steering column switch module 50, and its extensions are the first extension 41, the integration part 42, and the second extension 43.
[0083] The first extension 41 extends directly along the lever 30 into the lower surface of the swing portion inside the steering column switch module 50, extending all the way to the top of the swing portion; the first extension 41 at the top of the swing portion constitutes the integration portion 42, which is used to integrate the Hall sensor 10.
[0084] The second extension 43 is formed outward from the middle of the first extension 41. The second extension 43 serves as an extension transmission part and can adapt to the internal structure of the steering column switch module 50 based on its own flexible deformation.
[0085] The Hall sensor 10, together with the integrated portion on the flexible circuit board 40, is fixedly mounted on the swing portion of the lever 30 located in the steering column switch module 50, and the Hall sensor 10 is distributed relative to the magnet 20 fixedly mounted in the steering column switch module 50, so that the Hall sensor 10 is located within the effective magnetic field generated by the magnet 20.
[0086] As a further supplementary example, when the Hall sensor 10, together with the integrated part on the flexible circuit board 40, is fixedly mounted on the swing part of the lever 30 in the steering column switch module 50, it can be fixed to the swing part of the lever 30 in the steering column switch module 50 by means of riveting or gluing, thereby ensuring that the Hall sensor 10 can swing together with the lever 30.
[0087] As a further example, the Hall sensor 10 here can be a 2D Hall sensor or a 3D Hall sensor, depending on the actual needs.
[0088] In this application example, when the vehicle lever status detection component is deployed in conjunction with the lever 30 and the steering column switch module 50, the Hall sensor 10 mounted on the lever 30 moves synchronously relative to the magnet 20 fixed in the steering column switch module 50 as the lever 30 is moved. Since the sensing range of the Hall sensor 10 is always within the magnetic field range generated by the magnet 20, the moving Hall sensor 10 can accurately and sensitively detect the position of the magnet 20 and generate a corresponding sensing signal. The generated sensing signal is synchronously transmitted through the flexible circuit board 40 to the main PCB board 60 in the steering column switch module 50. At that time, the main PCB board 60 in the steering column switch module 50 can calculate and determine the position of the vehicle lever based on the signal. On this basis, the main PCB board 60 generates the corresponding control command according to the function corresponding to the calculated position of the vehicle lever.
[0089] The Hall sensor 10 is used as the moving part in the toggle switch status detection component of this vehicle. It achieves electrical performance with the magnet 20 through non-contact communication, resulting in higher functional sensitivity. In practical applications, it has lower operating noise, longer service life, and higher reliability.
[0090] The vehicle lever status detection component solution provided by this invention has the following advantages over the prior art in practical applications:
[0091] (1) In practical applications, the present invention can effectively reduce the size of the main PCB board in the steering column switch module, thereby further reducing the size of the SCM.
[0092] (2) In specific applications, the Hall sensor can be flexibly arranged based on the flexible circuit board. Specifically, it can be arranged in a suitable position according to the function within the operating range of the lever; it can even be directly arranged on the lever or the corresponding position of the switch module body without the need for more connecting parts for transfer arrangement.
[0093] (3) In the specific application of the present invention, the corresponding Hall sensor is arranged in the flexible circuit board inside the lever, which reduces the number of parts and makes the overall assembly structure simpler.
[0094] (5) In specific applications, the better position of the curved block on the lever and the magnet and Hall sensor can minimize the range of the moving part. The smaller the moving part is, the closer the nominal position is to the curved block.
[0095] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.
Claims
1. A vehicle shift lever state detection assembly comprising a Hall sensor and a magnet, characterized in that, The Hall sensor is directly arranged on the flexible circuit board of the main PCB board of the steering column switch module for connecting the functions on the lever with the flexible circuit board, the Hall sensor is distributed in the effective magnetic field area of the magnet along with the extension of the flexible circuit board based on the flexibility and extendibility of the flexible circuit board; the Hall sensor and the magnet can relatively move according to the lever operation.
2. The vehicle shifter rod status detection assembly of claim 1, wherein, The Hall sensor is arranged on the flexible circuit board in a welding manner and is electrically connected with the circuit in the flexible circuit board.
3. The vehicle shifter rod status detection assembly of claim 1 or 2, wherein, The Hall sensor is electrically connected with the main control board in the steering column switch module through the flexible circuit board in the vehicle lever.
4. The vehicle shifter rod status detection assembly of claim 1, wherein, The magnet is fixedly arranged relative to the lever, and the Hall sensor can relatively move relative to the magnet along with the lever operation.
5. The vehicle shifter rod status detection assembly of claim 4, wherein, The Hall sensor is fixedly arranged on the lever based on the flexible circuit board, and the magnet is fixedly arranged in the steering column switch module relative to the Hall sensor.
6. The vehicle shifter rod status detection assembly of claim 4 or 5, wherein, The flexible circuit board is distributed along the lever to the steering column switch module, and the Hall sensor is arranged at the position corresponding to the magnet.
7. The vehicle shifter rod condition detection assembly of claim 1, wherein, The Hall sensor is fixedly arranged relative to the lever, and the magnet can relatively move relative to the Hall sensor along with the lever operation.
8. The vehicle shifter rod status detection assembly of claim 7, wherein, The Hall sensor is fixedly arranged in the steering column switch module relative to the lever based on the flexible circuit board; and the magnet is fixedly arranged on the lever.
9. The vehicle shifter rod status detection assembly of claim 7 or 8, wherein, The flexible circuit board is independently extended to the steering column switch module, and the Hall sensor is arranged at the position corresponding to the magnet.
10. Vehicle, characterized in that The vehicle is provided with the vehicle lever state detection assembly of any one of claims 1-9 in the steering column switch module.
Citation Information
Patent Citations
Vehicle deflector rod state detection assembly and vehicle
CN220230969U
Operating device for a vehicle, comprising a permanent magnet, a ferromagnetic flux guide and a hall element, and method for operating such an operating device
WO2022171511A1