Integrated hod heating and vibration steering wheel switch

Abstract

The utility model discloses a kind of integrated HOD heating vibration's steering wheel switch, it is related to the technical field of automobile steering wheel, including steering wheel body, integrated switch module is arranged on the steering wheel body, and integrated switch module includes HOD detection unit, heating unit and vibration unit;The HOD detection unit includes capacitive sensor, and capacitive sensor is evenly distributed above the holding area of steering wheel body, can real-time detect the capacitance change between driver's hand and steering wheel;The heating unit includes heating wire, and heating wire is spirally distributed in the holding area of steering wheel body.This utility model integrates three functions of HOD detection, heating and vibration in one steering wheel switch, improve the functionality and practicality of steering wheel, meet the various needs of driver for driving safety and comfort, and each functional module is independent and works cooperatively, effectively avoid the problem of mutual interference, improve stability and reliability.

Description

Technical Field

[0001] This utility model relates to the field of automotive steering wheel technology, and in particular to a steering wheel switch with integrated HOD heating and vibration. Background Technology

[0002] With the continuous development of automotive technology, the requirements for driving safety and comfort are also increasing. HOD (Hardware-Oriented Drive) function, as an important component of advanced driver assistance systems, can monitor in real time whether the driver's hands are on the steering wheel. When it detects that the driver's hands have been off the steering wheel for a certain period of time, it will issue an alarm to remind the driver to refocus, thereby effectively avoiding traffic accidents caused by driver inattention and greatly improving driving safety. The heating function keeps the steering wheel warm in cold weather, allowing the driver's hands to operate the steering wheel in a comfortable environment, improving driving comfort and also helping to reduce operational errors caused by cold hands, indirectly improving driving safety. The vibration function can provide the driver with immediate and intuitive feedback through steering wheel vibration when the vehicle deviates from its lane or when the driver is fatigued. Compared to traditional audible and visual alarms, vibration feedback can more directly attract the driver's attention, shorten the driver's reaction time, and further improve driving safety.

[0003] However, there are many shortcomings in the steering wheel switches currently on the market. Many steering wheel switches have only one function and cannot integrate multiple functions such as HOD, heating and vibration at the same time, which limits the driver's enjoyment of driving assistance functions. Some steering wheel switches that integrate some functions are not well designed in terms of structure, which leads to mutual interference between functional modules and affects the normal functioning of the functions. Therefore, there is an urgent need to design a steering wheel switch that integrates HOD, heating and vibration to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an integrated HOD heating and vibration steering wheel switch. Its advantages lie in integrating HOD detection, heating, and vibration functions into a single steering wheel switch, improving the functionality and practicality of the steering wheel. Furthermore, the various functional modules work independently yet collaboratively, effectively avoiding mutual interference and enhancing stability and reliability.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A steering wheel switch with integrated HOD heating and vibration includes a steering wheel body, on which an integrated switch module is provided, and the integrated switch module includes an HOD detection unit, a heating unit and a vibration unit.

[0007] The HOD detection unit includes a capacitive sensor, which is evenly distributed above the steering wheel grip area, and can detect the capacitance change between the driver's hand and the steering wheel in real time.

[0008] The heating unit includes heating wires, which are spirally distributed around the grip area of ​​the steering wheel body.

[0009] The vibration unit includes a linear motor, which is mounted below the grip area of ​​the steering wheel body.

[0010] The above technical solution integrates three functions—HOD detection, heating, and vibration—into a single steering wheel switch, with each functional module working independently yet collaboratively.

[0011] The present invention is further configured such that the steering wheel body is composed of a hub and a rim, and the surface of the rim is provided with a disc sleeve, and the HOD detection unit, heating unit and vibration unit are all located at the rim.

[0012] The present invention is further configured such that a device cavity is formed in the middle of the hub, and an HOD control module, a temperature control module, and a vibration control module are respectively installed on the inner wall of the device cavity, and are electrically connected to the HOD detection unit, the heating unit, and the vibration unit respectively. A start control module is also installed in the device cavity, and the start control module is electrically connected to the HOD control module, the temperature control module, and the vibration control module.

[0013] The present invention is further configured such that a control panel is installed on the top of the inner wall of the equipment cavity, and the control panel is provided with a HOD touch button, a heating touch button, a vibration touch button and a start button, which are electrically connected to the HOD control module, the temperature control module, the vibration control module and the start control module respectively.

[0014] The above technical solution utilizes a touch-sensitive control panel, which is highly responsive and provides timely feedback, allowing drivers to easily operate and configure various functions.

[0015] The present invention is further configured such that the gripping area of ​​the wheel rim is fixed with a sleeve, and the inner wall of the disc sleeve is in contact with the surface of the sleeve.

[0016] The present invention is further configured such that the gripping area of ​​the wheel rim is provided with a spiral groove, and a heating wire is installed on the inner wall of the spiral groove. The heating wire is electrically connected to the temperature control module and is attached to the inner wall of the sleeve.

[0017] The above technical solutions aim to increase the temperature of the steering wheel surface and maintain it within the suitable range set by the driver.

[0018] The present invention is further configured such that first mounting grooves are provided at equal intervals above the gripping area of ​​the wheel rim and on the sleeve, and the positions of the first mounting grooves intersect with the groove positions of the spiral grooves. A capacitive sensor is installed on the inner wall of the first mounting groove and is attached to the inner wall of the disc sleeve.

[0019] The above technical solutions can accurately determine whether the driver is holding the steering wheel, as well as the position and pressure of their hands.

[0020] The present invention is further configured such that a second mounting groove is provided at equal intervals below the gripping area of ​​the wheel rim, and the position of the second mounting groove intersects with the position of the groove of the spiral groove. The linear motor is installed on the inner wall of the second mounting groove. A movable groove is provided at the bottom of the sleeve, and a vibration plate is inserted into the inner wall of the movable groove. A vibration block is installed at the vibration end of the linear motor. The vibration block is fixedly connected to the vibration plate. A plurality of heat dissipation holes are provided on the vibration plate, and the heat dissipation holes are connected to the second mounting groove.

[0021] The above technical solution involves a vibrating block that drives a vibrating plate to vibrate, and the vibration is transmitted to the driver through the steering wheel, providing the driver with intuitive vibration feedback.

[0022] The beneficial effects of this utility model are as follows:

[0023] 1. This integrated HOD heating and vibration steering wheel switch integrates HOD detection, heating and vibration functions into one steering wheel switch, which greatly improves the functionality and practicality of the steering wheel, meets the driver's various needs for driving safety and comfort, and realizes remote control and unified management of the integrated switch module, thereby improving the overall intelligence level of the vehicle.

[0024] 2. This integrated HOD heated and vibrated steering wheel switch features independent yet collaborative functional modules. Through reasonable layout and circuit design, mutual interference between functional modules is effectively avoided, improving the stability and reliability of the product.

[0025] 3. The integrated HOD heated and vibrated steering wheel switch features a touch-sensitive control panel that is highly responsive and provides timely feedback. Drivers can easily operate and set various functions. In addition, the heating temperature and vibration feedback intensity are adjustable to meet the personalized needs of different drivers and enhance the user experience. Attached Figure Description

[0026] Figure 1 A perspective view of a steering wheel switch integrating HOD heating and vibration proposed in this utility model;

[0027] Figure 2 This is a front cross-sectional view of a steering wheel switch with integrated HOD heating and vibration proposed in this utility model.

[0028] Figure 3 This is a schematic diagram of the sleeve and capacitive sensor structure of an integrated HOD heating and vibration steering wheel switch proposed in this utility model.

[0029] Figure 4 This is a schematic diagram of the vibration plate and heat dissipation hole structure of a steering wheel switch integrating HOD heating and vibration proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the spiral groove and heating wire structure of a steering wheel switch with integrated HOD heating and vibration proposed in this utility model.

[0031] Figure 6 This is a schematic diagram of the vibration block and linear motor structure of a steering wheel switch integrating HOD heating and vibration proposed in this utility model.

[0032] In the diagram: 1. Steering wheel body; 101. Wheel rim; 102. Wheel hub; 103. Disc cover; 2. Control panel; 3. HOD touch button; 4. Heating touch button; 5. Vibration touch button; 6. Start button; 7. Equipment cavity; 8. HOD control module; 9. Temperature control module; 10. Vibration control module; 11. Start control module; 12. Sleeve; 13. First mounting slot; 14. Capacitive sensor; 15. Vibration plate; 16. Heat dissipation hole; 17. Spiral groove; 18. Heating wire; 19. Second mounting slot; 20. Vibration block; 21. Linear motor. Detailed Implementation

[0033] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0034] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0035] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0036] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0037] Reference Figures 1-6 A steering wheel switch with integrated HOD heating and vibration includes a steering wheel body 1, an integrated switch module is provided on the steering wheel body 1, and the integrated switch module includes an HOD detection unit, a heating unit and a vibration unit. The steering wheel body 1 is composed of a hub 102 and a rim 101, and a disc sleeve 103 is provided on the surface of the rim 101. The HOD detection unit, the heating unit and the vibration unit are all provided at the rim 101.

[0038] The HOD detection unit includes a capacitive sensor 14, which is evenly distributed above the grip area of ​​the steering wheel body 1. It can detect the capacitance change between the driver's hand and the steering wheel in real time, thereby accurately determining whether the driver is gripping the steering wheel and the position and force of the hand.

[0039] The heating unit includes a heating wire 18, which is spirally distributed around the grip area of ​​the steering wheel body 1.

[0040] The vibration unit includes a linear motor 21, which is mounted below the grip area of ​​the steering wheel body 1.

[0041] Specifically, a device cavity 7 is formed in the middle of the hub 102. The inner wall of the device cavity 7 is equipped with a HOD control module 8, a temperature control module 9, and a vibration control module 10, which are electrically connected to the HOD detection unit, the heating unit, and the vibration unit, respectively. A start control module 11 is also installed inside the device cavity 7, and it is electrically connected to the HOD control module 8, the temperature control module 9, and the vibration control module 10. A control panel 2 is installed on the top of the inner wall of the device cavity 7. The control panel 2 has a HOD touch button 3, a heating touch button 4, a vibration touch button 5, and a start button 6, which are respectively connected to the HOD control module 8, the temperature control module 9, the vibration control module 10, and the start control module 10. 1. Electrical connection: The temperature control module 9 can automatically adjust the heating power of the heating wire 18 according to the ambient temperature information fed back by the in-vehicle temperature sensor and the temperature value set by the driver, so as to keep the temperature of the steering wheel surface within a suitable range. The vibration control module 10 receives signals from other systems of the vehicle. When the vehicle deviates from the lane or the driver is fatigued, the vibration control module 10 controls the linear motor 21 to work. The linear motor 21 generates vibration and transmits it to the driver through the steering wheel body 1, giving the driver intuitive vibration feedback. Each control module is also connected to the vehicle's central control system, which can transmit the working status information of the HOD detection unit, heating unit and vibration unit to the central control system in real time.

[0042] Specifically, each gripping area of ​​the wheel rim 101 is fixed with a sleeve 12, and the inner wall of the disc sleeve 103 is in contact with the surface of the sleeve 12. Each gripping area of ​​the wheel rim 101 has a spiral groove 17, and a heating wire 18 is installed on the inner wall of the spiral groove 17. The heating wire 18 is electrically connected to the temperature control module 9 and is in contact with the inner wall of the sleeve 12. First mounting grooves 13 are evenly distributed above the gripping area of ​​the wheel rim 101 and on the sleeve 12, and the positions of the first mounting grooves 13 intersect with the groove positions of the spiral grooves 17. A capacitive sensor 14 is installed on the inner wall of the first mounting groove 13 and is in contact with the inner wall of the disc sleeve 103. Second mounting grooves 19 are evenly distributed below the gripping area of ​​the wheel rim 101, and the positions of the second mounting grooves 19 intersect with the spiral grooves 17. The slots of slot 17 are staggered. The linear motor 21 is installed on the inner wall of the second mounting slot 19. The bottom of the sleeve 12 has a movable slot, and the inner wall of the movable slot is connected to a vibration plate 15. The vibration end of the linear motor 21 is equipped with a vibration block 20, which is fixedly connected to the vibration plate 15. The vibration plate 15 has multiple heat dissipation holes 16, which are connected to the second mounting slot 19. The three functions of HOD detection, heating and vibration are integrated into one steering wheel switch, which greatly improves the functionality and practicality of the steering wheel and meets the driver's various needs for driving safety and comfort. Moreover, the functional modules work independently and collaboratively. Through reasonable layout and circuit design, mutual interference between functional modules is effectively avoided, and the stability and reliability of the product are improved.

[0043] Working principle: The capacitive sensor 14 above the steering wheel grip area continuously detects the capacitance change between the driver's hand and the steering wheel. When the driver grips the steering wheel, a specific capacitance value is formed between the hand and the capacitive sensor 14. The sensor transmits the collected capacitance data to the HOD control module 8. The HOD control module 8 analyzes and processes this data based on a preset algorithm to accurately determine whether the driver is gripping the steering wheel, as well as the position and force of the hand. If the HOD control module 8 detects that the driver's hand has been off the steering wheel for more than a preset time, it will send an alarm signal to the vehicle's central control system to remind the driver to regain control of the steering wheel through sound and light.

[0044] The temperature control module 9 is connected to the in-vehicle temperature sensor to obtain ambient temperature information in real time. The driver can set the heating temperature of the steering wheel through the heating touch button 4 on the control panel 2. The temperature control module 9 automatically adjusts the heating power of the heating wire 18 according to the ambient temperature fed back by the in-vehicle temperature sensor and the target temperature set by the driver. The heating wire 18 is spirally distributed in the spiral groove 17 of the steering wheel grip area. When current passes through the heating wire 18, it generates heat and conducts it to the disc sleeve 103 through the sleeve 12, thereby increasing the temperature of the steering wheel surface and maintaining it within the appropriate range set by the driver.

[0045] The vibration control module 10 communicates with other systems in the vehicle, such as the lane departure warning system and the driver fatigue monitoring system. When the vehicle deviates from its lane or the driver becomes fatigued, these systems send signals to the vibration control module 10. Upon receiving the signal, the vibration control module 10 controls the linear motor 21 to operate. The vibration end of the linear motor 21 drives the vibration block 20 to move, and the vibration block 20 pushes the vibration plate 15 to vibrate. The vibration is transmitted to the driver through the steering wheel body 1, providing the driver with intuitive vibration feedback. At the same time, the heat dissipation holes 16 on the vibration plate 15 help dissipate heat when the linear motor 21 is working, ensuring its stable operation. In addition, each control module also communicates with the vehicle's central control system, which can transmit the working status information of the HOD detection unit, heating unit, and vibration unit to the central control system in real time, facilitating the monitoring and management of the overall vehicle operating status. It can also receive instructions sent by the central control system to achieve remote control.

[0046] 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 equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A steering wheel switch integrating HOD heating and vibration, characterized in that, The steering wheel includes a steering wheel body (1), on which an integrated switch module is provided, and the integrated switch module includes an HOD detection unit, a heating unit and a vibration unit. The steering wheel body (1) is composed of a hub (102) and a rim (101), and a disc sleeve (103) is provided on the surface of the rim (101). The HOD detection unit, the heating unit and the vibration unit are all located at the rim (101). The HOD detection unit includes a capacitive sensor (14), and the capacitive sensor (14) is evenly distributed above the grip area of ​​the steering wheel body (1), which can detect the capacitance change between the driver's hand and the steering wheel in real time. The heating unit includes a heating wire (18), and the heating wire (18) is spirally distributed around the gripping area of ​​the steering wheel body (1); The vibration unit includes a linear motor (21), and the linear motor (21) is mounted below the grip area of ​​the steering wheel body (1); The hub (102) has a device cavity (7) in the middle. The inner wall of the device cavity (7) is equipped with a HOD control module (8), a temperature control module (9), and a vibration control module (10), which are electrically connected to the HOD detection unit, the heating unit, and the vibration unit, respectively. The device cavity (7) is also equipped with a start control module (11), which is electrically connected to the HOD control module (8), the temperature control module (9), and the vibration control module (10). The top of the inner wall of the device cavity (7) is equipped with a control panel (2), which is equipped with a HOD touch button (3), a heating touch button (4), a vibration touch button (5), and a start button (6), which are electrically connected to the HOD control module (8), the temperature control module (9), the vibration control module (10), and the start control module (11), respectively.

2. The integrated HOD heating and vibration steering wheel switch according to claim 1, characterized in that, The gripping area of ​​the wheel rim (101) is fixed with a sleeve (12), and the inner wall of the disc sleeve (103) is in contact with the surface of the sleeve (12).

3. A steering wheel switch with integrated HOD heating and vibration according to claim 2, characterized in that, The gripping area of ​​the wheel rim (101) is provided with a spiral groove (17), and a heating wire (18) is installed on the inner wall of the spiral groove (17). The heating wire (18) is electrically connected to the temperature control module (9) and is attached to the inner wall of the sleeve (12).

4. A steering wheel switch with integrated HOD heating and vibration according to claim 3, characterized in that, The wheel rim (101) has a first mounting groove (13) that is evenly distributed above the gripping area and on the sleeve (12). The position of the first mounting groove (13) is staggered with the position of the groove of the spiral groove (17). The capacitive sensor (14) is installed on the inner wall of the first mounting groove (13) and is attached to the inner wall of the disc sleeve (103).

5. A steering wheel switch with integrated HOD heating and vibration according to claim 4, characterized in that, The wheel rim (101) has a second mounting groove (19) that is evenly distributed below the gripping area. The position of the second mounting groove (19) is staggered with the position of the groove of the spiral groove (17). The linear motor (21) is installed on the inner wall of the second mounting groove (19). The bottom of the sleeve (12) has a movable groove. A vibration plate (15) is inserted into the inner wall of the movable groove. A vibration block (20) is installed on the vibration end of the linear motor (21). The vibration block (20) is fixedly connected to the vibration plate (15). The vibration plate (15) has multiple heat dissipation holes (16) and the heat dissipation holes (16) are connected to the second mounting groove (19).

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