A steering wheel hands-off detection and visual reminder device

Abstract

The utility model discloses a kind of steering wheel hand-off detection and visual reminding device, comprising: flexible LED lamp strip embedded in the surface of the rim of steering wheel;Capacitor cloth is set on the surface of the rim of steering wheel;Micro control unit is installed in steering wheel, the micro control unit is connected with the flexible LED lamp strip and capacitor cloth respectively on one hand, and connected with automobile control system on the other hand;And power module is installed in steering wheel and connected with the flexible LED lamp strip and micro control unit respectively.The utility model hides flexible LED lamp strip in the surface of steering wheel, judges whether driver grips steering wheel by hand-off detection, and controls flexible LED lamp strip work according to hand-off detection result, promptly reminds driver to keep the gripping state to steering wheel, significantly improves driving safety under the premise of not affecting original function, especially enhances night driving safety, improves driving experience.

Description

Technical Field

[0001] This utility model relates to the field of steering wheel technology, and in particular to a steering wheel off-hand detection and visual reminder device. Background Technology

[0002] Existing steering wheel hands-off detection systems mainly use traditional HOD systems with capacitive sensors for detection. Although they can detect whether the driver is holding the steering wheel, they fail to effectively combine visual reminders, making it impossible for users to directly experience the steering wheel hands-off detection function, resulting in a poor user experience.

[0003] Therefore, through beneficial exploration and research, the applicant has found a solution to the above problems, and the technical solution to be introduced below is the result of this research. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a steering wheel off-hand detection and visual reminder device that improves the user experience in order to address the shortcomings of the existing technology.

[0005] The technical problem to be solved by this utility model can be achieved by the following technical solution:

[0006] A steering wheel hands-off detection and visual reminder device includes:

[0007] Flexible LED light strips embedded in the surface of the steering wheel rim;

[0008] Capacitor cloth is installed on the surface of the steering wheel rim;

[0009] A microcontroller unit installed within the steering wheel is connected, on one hand, to the flexible LED light strip and the capacitor cloth, and on the other hand, to the vehicle control system; and

[0010] A power module installed inside the steering wheel and connected to the flexible LED light strip and the microcontroller unit, respectively.

[0011] In a preferred embodiment of the present invention, an annular LED strip mounting groove is formed on the upper surface of the steering wheel rim, and the flexible LED strip is embedded in the annular LED strip mounting groove.

[0012] In a preferred embodiment of this utility model, the upper surface of the flexible LED light strip is flush with the upper surface of the steering wheel rim.

[0013] In a preferred embodiment of this invention, the microcontroller unit is connected to the vehicle control system via a LIN bus interface.

[0014] In a preferred embodiment of this utility model, the microcontroller is a 32-bit microcontroller of model CVM0128SVLF.

[0015] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows: This utility model hides the flexible LED light strip inside the surface of the steering wheel, and determines whether the driver is gripping the steering wheel by detecting whether the driver is gripping the steering wheel. Based on the detection result, the flexible LED light strip is controlled to work, which promptly reminds the driver to maintain a grip on the steering wheel. Without affecting the original function, it significantly improves driving safety, especially nighttime driving safety, and enhances the driving experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0019] See Figure 1 The figure shows a steering wheel off-hand detection and visual reminder device, which includes a flexible LED light strip 100, a capacitor cloth 200, a microcontroller unit 300, and a power module 400.

[0020] The flexible LED light strip 100 is embedded within the surface of the steering wheel rim. Specifically, an annular mounting groove for the light strip is formed on the upper surface of the steering wheel rim, and the flexible LED light strip 100 is embedded within this groove, thus concealing itself within the steering wheel rim. The upper surface of the flexible LED light strip 100 is flush with the upper surface of the steering wheel rim, avoiding any impact on the driver's grip comfort. Furthermore, specialized tools can be used to initially set parameters such as color and brightness of the flexible LED light strip 100, or multiple simulated driving tests can be conducted to optimize response speed and accuracy, ensuring the best user experience.

[0021] The capacitor cloth 200 is applied to the surface of the steering wheel rim in a wrapping manner to detect whether the driver is gripping the steering wheel. In this embodiment, the coverage area of ​​the capacitor cloth 200 is determined according to the driver's grip requirements. It can be a single piece of capacitor cloth or several strips of capacitor cloth, or it can be in the form of a single area or multiple areas. The number and shape are not limited.

[0022] The microcontroller unit 300 is installed inside the steering wheel. On one hand, it is connected to both the flexible LED light strip 100 and the capacitor cloth 200. It processes the capacitance value signal collected by the capacitor cloth 200 and controls the flexible LED light strip 100 based on the processing result. On the other hand, it connects to the vehicle control system 10 via a LIN bus interface 310. It feeds back the processing result to the vehicle control system 10 and can also receive light strip control signals sent by the vehicle control system 10, controlling the flexible LED light strip 100 based on these signals. For example, the light strip control signals can be associated with the vehicle control system 10's entertainment system (turn signal, welcome function) or autonomous driving system (blind spot warning lights, traffic light signals). In this embodiment, the microcontroller unit 300 preferably uses a 32-bit microcontroller of model CVM0128SVLF.

[0023] The power module 400 is installed inside the steering wheel and is connected to the flexible LED light strip 100 and the microcontroller unit 300 respectively, and is used to provide the power required for the flexible LED light strip 100 and the microcontroller unit 300 to work.

[0024] The working principle of this invention's steering wheel hands-off detection and visual reminder device is as follows:

[0025] When the driver grips the steering wheel, the capacitor cloth 200 is triggered and generates a capacitance value signal, which is then sent to the microcontroller unit 300. The microcontroller unit 300 processes the capacitance value signal to determine the driver's current grip on the steering wheel. At this time, the microcontroller unit 300 will not send a flashing signal to the flexible LED light strip 100, and the flexible LED light strip 100 will not flash as a reminder.

[0026] When the driver does not grip the steering wheel for more than a set time (usually set to 15 seconds), the microcontroller 300, having not received the capacitance signal from the capacitor cloth 200 after the set time, determines that the driver is not gripping the steering wheel (hands-off state) and sends a flashing signal to the flexible LED light strip 100. The flexible LED light strip 100 flashes to remind the driver to maintain grip on the steering wheel. Simultaneously, the microcontroller 300 feeds back the hands-off detection result to the vehicle control system 10.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A steering wheel off-hand detection and visual reminder device, characterized in that, include: Flexible LED light strips embedded in the surface of the steering wheel rim; Capacitor cloth is installed on the surface of the steering wheel rim; A microcontroller unit installed within the steering wheel is connected, on one hand, to the flexible LED light strip and the capacitor cloth, and on the other hand, to the vehicle control system; and A power module installed inside the steering wheel and connected to the flexible LED light strip and the microcontroller unit, respectively.

2. The steering wheel off-hand detection and visual reminder device as described in claim 1, characterized in that, An annular LED strip mounting groove is formed on the upper surface of the steering wheel rim, and the flexible LED strip is embedded in the annular LED strip mounting groove.

3. The steering wheel off-hand detection and visual reminder device as described in claim 2, characterized in that, The upper surface of the flexible LED light strip is flush with the upper surface of the steering wheel rim.

4. The steering wheel off-hand detection and visual reminder device as described in claim 1, characterized in that, The microcontroller unit is connected to the vehicle control system via a LIN bus interface.

5. The steering wheel off-hand detection and visual reminder device as described in claim 4, characterized in that, The microcontroller unit is a 32-bit microcontroller with model number CVM0128SVLF.

Images