Vehicle-mounted screen vibration feedback system and method and intelligent cabin

Abstract

The invention provides a vehicle-mounted screen vibration feedback system and method and an intelligent cockpit, the system comprises a main body, a rear cover, a touch screen module, a circuit board and a push-pull electromagnet, the touch screen module comprises a screen supporting plate, a display screen and a pressure strain gauge, and the pressure strain gauge is used for detecting the pressure borne by the display screen; one end of the push-pull electromagnet is fixed on the rear cover, and the other end of the push-pull electromagnet is contacted with the back surface of the screen supporting plate; a micro-control unit is arranged on the circuit board, the push-pull type electromagnet pushes the screen supporting plate under the control of the micro-control unit, and vibration is transmitted to the display screen through the screen supporting plate. According to the invention, the problems that a traditional vehicle-mounted screen is not matched with an interior decoration shape, false triggering is easy to occur, vibration feedback is weak and the like can be solved.

Description

Technical Field

[0001] This invention relates to the field of automotive intelligent systems technology, and more specifically, to an in-vehicle screen vibration feedback system, method, and intelligent cockpit. Background Technology

[0002] With the development of touch technology and the advancement of automotive intelligent systems, the demand for human-machine interaction in car cockpits is increasing as functions expand. As smart cockpits develop, screens are becoming more prevalent in automotive interiors. However, traditional screens have the following drawbacks: limited design options, impact on driving safety, susceptibility to accidental triggering, and weak feedback during swipe operations. Traditional vibration feedback is often parallel to the screen; during swipe operations, because the direction of the operation coincides with the direction of the vibration, the vibration is not noticeable, failing to provide feedback.

[0003] In conclusion, there is an urgent need in automotive smart cockpits for an in-vehicle screen vibration feedback system that can integrate with the interior design, support multiple operations, prevent accidental touches, provide clear vibration feedback, and ensure driving safety. Summary of the Invention

[0004] In view of the above problems, the purpose of this invention is to provide an in-vehicle screen vibration feedback system, method and smart cockpit to solve the problems of traditional in-vehicle screens being prone to accidental triggering and weak vibration feedback.

[0005] This invention provides a vehicle-mounted screen vibration feedback system, comprising: a main body and a rear cover assembled with the main body, a touch screen module and a circuit board disposed on the main body, and a push-pull electromagnet disposed on the side of the rear cover facing the touch screen module, wherein...

[0006] The touch screen module includes a screen support plate disposed on the main body, a display screen attached to the screen support plate, and a pressure strain gauge attached to the screen support plate, wherein the pressure strain gauge is used to detect the pressure on the display screen;

[0007] One end of the push-pull electromagnet is fixed to the back cover, and the other end is in contact with the back of the screen support plate.

[0008] A microcontroller unit is provided on the circuit board. Under the control of the microcontroller unit, the push-pull electromagnet pushes the screen support plate and transmits the vibration to the display screen through the screen support plate.

[0009] In addition, a preferred embodiment is that the main body includes a support part and a module connecting part, the module connecting part is a frame structure with a hollowed-out area in the middle, and the screen support plate covers the hollowed-out area and is fixed on the frame structure;

[0010] The circuit board is disposed on the support portion.

[0011] Furthermore, a preferred embodiment is that the screen support plate is a plate structure adapted to the hollowed-out area, wherein,

[0012] The screen support plate is fixed to the module connection part by a fastener.

[0013] Furthermore, a preferred embodiment is that an induced deformation structure is provided on the screen support plate, and the pressure strain gauge is disposed on the induced deformation structure.

[0014] Furthermore, in a preferred embodiment, the display screen includes a display section and an extension section, wherein the display section is attached to the screen support plate, and the extension section is disposed within the space formed by the main body and the back cover or on the support section.

[0015] Furthermore, a preferred embodiment is that a touch sensor is provided inside the display unit, the touch sensor being used to recognize touch commands.

[0016] Furthermore, in a preferred embodiment, the pressure strain gauge, the push-pull electromagnet, and the circuit board are electrically connected.

[0017] In addition, a preferred embodiment is that both the display screen and the pressure strain gauge are fixed on the screen support plate.

[0018] Furthermore, in a preferred embodiment, the back cover includes a bottom and a snap-on cover connected to the bottom, wherein the bottom is snap-fitted to the support portion, the snap-on cover is snap-fitted to the module connection portion, and one end of the push-pull electromagnet is fixed to the curved portion.

[0019] In addition, a preferred embodiment is that a buffer sleeve is provided at the part of the push-pull electromagnet that contacts the screen support plate, and the buffer sleeve is made of silicone.

[0020] The present invention also provides a method for vibration feedback of an in-vehicle screen, which uses the above-mentioned in-vehicle screen vibration feedback system for vibration feedback, the method comprising:

[0021] The stress change of the display screen subjected to pressure is detected by a pressure strain gauge, and the detected stress signal is transmitted to the microcontroller unit on the circuit board.

[0022] Based on the received stress signal, the microcontroller unit drives the push-pull electromagnet to push the screen support plate;

[0023] The vibration caused by pushing the screen support plate is transmitted to the display screen;

[0024] Experience vibration feedback by vibrating the display screen.

[0025] The present invention also provides a smart cockpit, including the above-mentioned vehicle screen vibration feedback system.

[0026] As can be seen from the above technical solutions, the vehicle screen vibration feedback system, method and smart cockpit provided by the present invention detect the triggering force by pressure strain gauges, thereby improving the detection accuracy without affecting the vibration feedback effect; by setting a push-pull electromagnet on the screen support plate, vibration perpendicular to the screen surface is provided, and the vibration is obvious, thereby solving the problems of easy false triggering and weak vibration feedback of traditional vehicle screens.

[0027] To achieve the foregoing and related objectives, one or more aspects of the invention include the features that will be described in detail below. The following description and accompanying drawings illustrate certain exemplary aspects of the invention. However, these aspects indicate only a few of the various ways in which the principles of the invention can be used. Furthermore, the invention is intended to encompass all such aspects and their equivalents. Attached Figure Description

[0028] Other objects and results of the invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings. In the drawings:

[0029] Figure 1 This is an exploded schematic diagram of an in-vehicle screen vibration feedback system according to an embodiment of the present invention;

[0030] Figure 2 This is a three-dimensional structural diagram of an in-vehicle screen vibration feedback system according to an embodiment of the present invention;

[0031] Figure 3 for Figure 2 A cross-sectional schematic diagram;

[0032] Figure 4 This is a schematic diagram showing the positional relationship between the pressure strain gauge and the screen support plate according to an embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the vehicle screen vibration feedback system according to an embodiment of the present invention;

[0034] Figure 6 This is a schematic flowchart of a vehicle screen vibration feedback method according to an embodiment of the present invention.

[0035] The reference numerals in the figures include:

[0036] 1. Main body; 11. Supporting part; 12. Module connecting part; 13. Hollowed-out area;

[0037] 2. Display screen; 21. Display unit; 22. Extension unit;

[0038] 3. Screen support plate; 31. Deformation-inducing structure;

[0039] 4. Screws; 5. Pressure strain gauges; 6. Circuit board; 7. Push-pull electromagnets;

[0040] 8. Back cover, 81. Clip cover, 82. Bottom.

[0041] In all the accompanying drawings, the same reference numerals indicate similar or corresponding features or functions. Detailed Implementation

[0042] In the following description, numerous specific details are set forth for illustrative purposes and to provide a thorough understanding of one or more embodiments. However, it will be apparent that these embodiments may also be implemented without these specific details. In other instances, well-known structures and devices are shown in block diagram form for ease of description of one or more embodiments.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 invention and simplifying the description, and are not intended to 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 invention.

[0044] In response to the aforementioned problems of mismatch between traditional in-vehicle screens and interior design, easy accidental triggering, and weak vibration feedback, this invention proposes an in-vehicle screen vibration feedback system.

[0045] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0046] To illustrate the structure of the vehicle screen vibration feedback system provided by this invention, Figures 1 to 5 The structure of the in-vehicle screen vibration feedback system is illustrated from different perspectives. Specifically, Figure 1 An explosion of an in-vehicle screen vibration feedback system according to an embodiment of the present invention is shown; Figure 2 A three-dimensional structure of an in-vehicle screen vibration feedback system according to an embodiment of the present invention is shown; Figure 3 It shows Figure 2 The cross-sectional structure; Figure 4 The structural relationship between the pressure strain gauge and the screen support plate according to an embodiment of the present invention is shown. Figure 5This describes the principle of the vehicle-mounted screen vibration feedback system according to an embodiment of the present invention.

[0047] like Figures 1 to 5 As shown in the figure, the in-vehicle screen vibration feedback system provided by the present invention includes: a main body 1 and a rear cover 8 assembled with the main body 1, a touch screen module and a circuit board 6 disposed on the main body 1, and a push-pull electromagnet 7 disposed on the rear cover 8. The touch screen module includes a screen support plate 3 disposed on the side of the main body 1 facing the touch screen module, a display screen 2 attached to the screen support plate 3, and a pressure strain gauge 5 attached to the screen support plate 3. The pressure strain gauge 5 is used to detect the pressure on the display screen 2. One end of the push-pull electromagnet 7 is fixed to the rear cover 8, and the other end is in contact with the back of the screen support plate 3. A microcontroller unit is disposed on the circuit board 6. Under the control of the microcontroller unit, the push-pull electromagnet 7 pushes the screen support plate 3 and transmits vibration to the display screen 2 through the screen support plate 3.

[0048] In an embodiment of the present invention, the push-pull electromagnet 7, under the control of the microcontroller unit on the circuit board 6, pushes the screen support plate 3. At this time, the vibration is transmitted to the display screen 2 through the screen support plate 3. The user can experience vibration feedback through the vibration of the display screen 2. Moreover, at this time, the vibration direction is the normal direction of the display screen, and it can still provide obvious vibration during sliding operation. The vibration will not be indistinct because the sliding direction and the vibration direction coincide.

[0049] In this invention, the push-pull electromagnet 7 includes a moving rod that is perpendicularly contacted with the back of the screen support plate 3, an electromagnet, and a built-in spring. When the push-pull electromagnet 7 is charged, the force generated by the electromagnet provides a driving force for the moving rod. The moving rod pushes the screen support plate 3 vertically, and the screen support plate 3 vibrates due to the pushing force of the moving rod. The screen support plate 3 transmits the vibration to the display screen 2. When the push-pull electromagnet 7 is de-energized, the driving force provided to the moving rod disappears. At this time, the pushing force of the moving rod disappears, and the screen support plate 3 is no longer under force. However, under the action of the spring, the moving rod adheres to the screen support plate 3 and is in contact with the screen support plate 3.

[0050] In this invention, in order to prevent the sliding direction and vibration direction from coinciding and resulting in an inconspicuous vibration sensation, the push-pull electromagnet 7 is in perpendicular contact with the back of the screen support plate 3, that is, when pushing the screen support plate 3, it is pushed vertically, thereby improving the vibration sensation.

[0051] Among them, the push-pull electromagnet 7 provides vibration perpendicular to the product surface, with obvious vibration sensation, which is suitable for pushing surfaces with large mass, such as vehicle screens.

[0052] The main body 1 includes a support portion 11 and a module connecting portion 12. The module connecting portion 12 is a frame structure with a hollowed-out area 13 in the middle. The screen support plate 3 covers the hollowed-out area 13 and is fixed to the frame structure. The circuit board 6 is disposed on the support portion 11. In specific applications, the module connecting portion 12 can be designed as an outwardly protruding curved structure (e.g., Figures 1 to 4 In the embodiments shown, it can also be designed as a plane. The specific shape can be designed according to the actual situation, and no specific limitation is made here.

[0053] The screen support plate 3 is a plate structure adapted to the hollow area 13 in the module connection part. Based on the adaptation of the screen support plate 3 to the hollow area, the specific structure of the screen support plate 3 also matches the module connection part 12. It can be designed as an outwardly curved surface structure, or a planar structure, as needed. The screen support plate 3 is fixed to the module connection part 12 by a fastener. The fastener can be a screw 4. In specific applications, screws, bolts, or other suitable fasteners can be selected according to the actual situation, and the fastener structure is not limited to one type. The material of the screen support plate 3 can be plastic or metal. In this invention, the material can be set according to specific circumstances and is not limited to a particular material.

[0054] The screen support plate 3 is provided with an induced deformation structure 31, and the pressure strain gauge 5 is disposed on the induced deformation structure 31. The induced deformation structure 31 can be disposed on the left and right sides, top and bottom sides, or any side of the screen support plate 3; no specific limitation is made here, and a suitable position can be selected according to actual needs in specific applications. Figure 4 In the illustrated embodiment, the deformation-inducing structure 31 is disposed on the left and right sides of the screen support plate 3. The deformation-inducing structure is a long strip structure. The pressure strain gauge 5 disposed on the deformation-inducing structure 31 serves two purposes: first, it improves the detection efficiency of the pressure strain gauge 5; second, it improves the vibration feedback efficiency and reduces vibration damping. Therefore, in this embodiment of the invention, the pressure strain gauge is used to detect the triggering force, improving detection accuracy without affecting the vibration feedback effect.

[0055] The display screen 2 includes a display section 21 adapted to the screen support plate 3 and an extension section 22 connected to the display section 21. The display section is attached to the screen support plate 3, and the extension section 22 is disposed within the space formed by the main body 1 and the rear cover 8 or on the support section. The display section 21 is adapted to the screen support plate 3. The display screen can be designed as an outwardly curved structure or a planar structure; the specific design depends on the application and is not specifically limited here. The display section is the display area of ​​the display screen, and the extension section 22, also known as a T-CON (Timing Controller), is used to process received information and send the processed information to the display section 21. The extension section 22 can be suspended within the space formed by the main body 1 and the rear cover 8 or fixed to the support section. In specific applications, the specific position of the extension section 22 can be set at an appropriate location based on the actual situation and is not specifically limited here.

[0056] It should be noted that the extension 22 is electrically connected to the circuit board 17. In specific applications, the extension 22 and the circuit board 17 can be electrically connected via wires. The microcontroller unit in the circuit board 17 not only controls the vibration feedback but also issues relevant commands to the extension. The control logic relationship between the circuit board 17 and the extension 22 is a common technique in the field and will not be elaborated here.

[0057] The display screen 2 can be either a rigid screen or a flexible screen. In specific applications, a flexible screen can be used as needed. Due to the flexible nature of the screen, it can be designed into a curved or irregular shape. To match the interior design of the car, the display screen can be designed as a curved structure. The flexible screen is approximately 0.8mm thick and is attached to the screen support plate 3. It can effectively sense vibrations transmitted by the screen support plate 3 and provide feedback to the user. A touch sensor is installed inside the display unit 21. The touch sensor is used to identify touch commands, including pressing the specific location of the display screen and sliding the display screen. In this embodiment of the invention, the display screen achieves a curved shape, better integrating into the car interior design; it is also applicable to non-screen automotive interior smart surfaces, such as plastic panels, wood grain panels, leather-textured panels, fabric panels, and metal panels.

[0058] The pressure strain gauge 5 and the push-pull electromagnet 7 are electrically connected to the circuit board 6. The display screen 2 and the pressure strain gauge 5 are both bonded and fixed to the screen support plate 3.

[0059] The rear cover 8 includes a bottom 82 and a latching cover 81 connected to the bottom 82. The bottom 82 is fastened to the support portion 11 of the main body 1, and the latching cover 81 is fastened to the module connection portion 12 of the main body 1. The latching cover 81 and the module connection portion 12 of the main body 1 are adapted to each other. In application, the latching cover can be designed as a protruding curved structure or a flat structure as needed. The specific shape can be designed according to the actual situation, and no specific limitation is made here. One end of the push-pull electromagnet 7 is fixed to the curved portion by screws or glue. In specific applications, a suitable fixing method can be selected according to the actual situation, and no particular fixing method is limited here.

[0060] Preferably, one end of the push-pull electromagnet 7 is in contact with the middle position of the screen support plate 3, which can make the vibration uniformity better and the vibration sensation stronger.

[0061] A buffer sleeve is provided at the point where the push-pull electromagnet 7 contacts the screen support plate 3 (the top of the moving rod). The buffer sleeve can reduce the noise generated when the push-pull electromagnet 7 contacts the screen support plate 3, and also has an anti-slip function. The buffer sleeve can be made of silicone according to actual requirements, as long as it can reduce noise and prevent slip, and is not limited to a specific material. In the embodiment of the present invention, the assembly process of the vehicle screen vibration feedback system is as follows: First, the display screen 2 and the screen support plate 3 are glued together, and then the pressure strain gauge 5 is attached to the induced deformation structure 31 of the screen support plate 3 (e.g., Figure 4 As shown), at this time, the screen assembly is fixed together with the main body 1 as a whole of the touch screen module by screws 4; one end of the push-pull electromagnet 7 is fixed together with the back cover 8, the circuit board 6 is fixed on the main body 1, and the touch screen module, pressure strain gauge 5, and push-pull electromagnet 7 are connected to the circuit board 6. Finally, the main body 1 and the back cover 8 are fixed together.

[0062] Corresponding to the above system, the present invention also provides a method for vibration feedback of an in-vehicle screen. Figure 6 A flowchart of a vehicle-mounted screen vibration feedback method according to an embodiment of the present invention is shown.

[0063] like Figure 6 As shown, the vehicle screen vibration feedback method provided by the present invention uses the above-mentioned vehicle screen vibration feedback system for vibration feedback, and the method includes:

[0064] S110: Detects stress changes in the display screen subjected to pressure by a pressure strain gauge and transmits the detected stress signal to the microcontroller unit on the circuit board;

[0065] S120: Based on the received stress signal, the microcontroller unit drives the push-pull electromagnet to push the screen support plate;

[0066] S130: Transmit the vibration caused by pushing the screen support plate to the display screen;

[0067] S140: Experience vibration feedback through the vibration of the display screen.

[0068] In step S110, the pressure strain gauge is placed on the deformation-inducing structure on the screen support plate. Under the action of the deformation-inducing structure, the detection efficiency and accuracy of the pressure strain gauge are improved.

[0069] In steps S120 to S140, based on the received stress signal, the microcontroller issues a charging command for the push-pull electromagnet. After the push-pull electromagnet is connected to the power supply, the electromagnetic force generated by the electromagnet provides a driving force for the moving rod. The moving rod vertically pushes the screen support plate, causing the screen support plate to vibrate under the pushing force of the moving rod, and the screen support plate transmits the vibration to the display screen. When the push-pull electromagnet is disconnected from the power supply, the electromagnetic force disappears, and the moving rod no longer applies external force to the screen support plate when the external force disappears. However, under the action of the spring, the moving rod remains in contact with the screen support plate; at this time, the display screen does not receive vibration feedback.

[0070] During this vibration feedback process, when the user presses the display screen, increasing the pressing force does not result in a significant vibration amplitude. This is because increasing the pressing force also increases the vibration damping, resulting in a small change in amplitude. In other words, the amplitude of the feedback vibration does not increase with increasing pressing force.

[0071] The present invention also provides a smart cockpit, including the above-mentioned vehicle screen vibration feedback system. The embodiments of the smart cockpit provided by the present invention include all the features of the vehicle screen vibration feedback system. For relevant details, please refer to the description of the embodiments of the vehicle screen vibration feedback system, which will not be repeated here.

[0072] As can be seen from the above embodiments, the present invention provides an in-vehicle screen vibration feedback system, method, and smart cockpit. It improves detection accuracy without affecting the vibration feedback effect by detecting the triggering force using a pressure strain gauge; it provides vibration perpendicular to the display screen by using a push-pull electromagnet mounted on the screen support plate, resulting in a noticeable vibration sensation; furthermore, the curved structure of the display screen allows for better integration into the automotive interior design. This solves the problems of traditional in-vehicle screens, such as mismatch with interior design, easy false triggering, and weak vibration feedback.

[0073] The in-vehicle screen vibration feedback system, method, and smart cockpit according to the present invention have been described above by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various modifications can be made to the in-vehicle screen vibration feedback system, method, and smart cockpit proposed by the present invention without departing from the scope of the invention. Therefore, the scope of protection of the present invention should be determined by the contents of the appended claims.

Claims

1. An in-vehicle screen vibration feedback system, characterized by, The vehicle-mounted screen vibration feedback system comprises a main body, a rear cover assembled with the main body, a touch screen module and a circuit board arranged on the main body, and a push-pull electromagnet arranged on a side of the rear cover facing the touch screen module. The touch screen module comprises a screen support plate arranged on the main body, a display screen arranged on the screen support plate, and a pressure strain gauge arranged on the screen support plate. One end of the push-pull electromagnet is fixed on the rear cover, and the other end is in contact with the back of the screen support plate. A micro control unit is arranged on the circuit board, and the push-pull electromagnet pushes the screen support plate under the control of the micro control unit and transmits vibration to the display screen through the screen support plate.

2. The vehicle-mounted screen vibration feedback system according to claim 1, wherein The main body comprises a support part and a module connecting part, the module connecting part is a frame structure with a hollow area in the middle, the screen support plate covers the hollow area and is fixed on the frame structure, and the circuit board is arranged on the support part.

3. The vehicle-mounted screen vibration feedback system according to claim 2, wherein The screen support plate is a plate structure matched with the hollow area, and The screen support plate is fixed to the module connecting part by a fixing part.

4. The vehicle-mounted screen vibration feedback system according to claim 3, wherein Induced deformation structures are arranged on both sides of the screen support plate, and the pressure strain gauge is arranged on the induced deformation structures.

5. The vehicle-mounted screen vibration feedback system according to claim 3, wherein The display screen comprises a display part matched with the screen support plate and an extension part connected with the display part, and The display part is attached to the screen support plate, and the extension part is arranged in a space formed by the main body and the rear cover or on the support part.

6. The vehicle-mounted screen vibration feedback system according to claim 5, wherein A touch sensor is arranged in the display part, and the touch sensor is used to identify touch instructions. The pressure strain gauge, the push-pull electromagnet and the circuit board are electrically connected. The display screen and the pressure strain gauge are fixed on the screen support plate.

7. The on-board screen vibration feedback system of any one of claims 1-6, wherein, 9. The vehicle-mounted screen vibration feedback system according to claim 2, wherein 8. The on-board screen vibration feedback system of any one of claims 1-6, wherein, The rear cover comprises a bottom part and a clamping cover connected with the bottom part, the bottom part is assembled with the support part by snap fitting, the clamping cover is assembled with the module connecting part by snap fitting, and one end of the push-pull electromagnet is fixed on the curved part.

10. The vehicle-mounted screen vibration feedback system according to claim 9, wherein A buffer sleeve is arranged at the position where the push-pull electromagnet contacts the screen support plate, and the buffer sleeve is made of silica gel. The vehicle-mounted screen vibration feedback system according to any one of claims 1-10 is used for vibration feedback, and the method comprises: ​ 11. A method for vibration feedback of an in-vehicle screen, the method comprising: ​ The stress change of the display screen subjected to pressing force is detected by a pressure strain gauge, and the detected stress signal is transmitted to a micro control unit of a circuit board; According to the received stress signal, the micro control unit drives a push-pull electromagnet to push the screen support plate; The vibration caused by pushing the screen support plate is transmitted to the display screen; The vibration feedback is experienced through the vibration of the display screen.

12. An intelligent cabin, characterized in that, A vehicle-mounted screen vibration feedback system is provided, which comprises the screen vibration feedback system according to any one of claims 1-10.

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