Driving assistance system based on steering wheel angle monitoring and return reminding

Abstract

The invention provides a driving assistance system based on steering wheel angle monitoring and return reminding. The driving assistance system comprises a monitoring unit, an integration unit, a control unit, a voice prompt unit, a vibration prompt unit and a display unit. The monitoring unit monitors the three types of sensors in real time to obtain steering wheel turning angle, vehicle body posture and vehicle speed data; the integration unit integrates the data collected by the monitoring unit into first data; the control unit analyzes the data to generate second data containing the state of the steering wheel. The voice prompt unit sends a voice prompt according to the second data when the deflection angle of the vehicle body is lower than a threshold value; the vibration prompting unit vibrates the steering wheel and generates third data when the vehicle backs up and the vehicle speed is low or the steering wheel is not returned and the voice is turned off; and the display unit displays related preset information through the vehicle-mounted terminal. The system combines multiple reminding modes, solves the problem that the steering wheel is difficult to return when a green hand makes a big turn and backs up, and improves the driving safety and experience.

Description

Technical Field

[0001] This invention relates to the automotive field, and more specifically, to a driving assistance system based on steering wheel angle monitoring and centering reminder. Background Technology

[0002] With the increase in car ownership, the number of novice drivers is also increasing. When novice drivers make sharp turns, U-turns, or reverse, they need to turn the steering wheel significantly. Due to their lack of experience and poor spatial awareness, they find it difficult to accurately judge the direction to straighten the steering wheel. Moreover, traditional mechanical steering wheels do not have intuitive return-to-center indicators, which can easily lead to oversteering or understeering, causing the vehicle to deviate from its course.

[0003] Currently, steering wheel centering judgment relies heavily on driver experience, which can easily lead to accidents due to nervousness and mistakes in complex environments. Furthermore, parking with the steering wheel not centered can damage vehicle components. Existing vehicle centering reminder functions are mostly triggered when the engine is turned off or the vehicle is locked, lacking dynamic scenario reminders during driving. They are also limited in format, lack real-time status display, and cannot provide targeted reminders based on driving scenarios, thus failing to meet the needs. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a driving assistance system based on steering wheel angle monitoring and centering reminder.

[0005] To achieve the above-mentioned technical effects, the present invention adopts the following technical solution:

[0006] A driving assistance system based on steering wheel angle monitoring and return-to-center reminder includes a monitoring unit, a control unit, an integration unit, a voice prompt unit, a vibration prompt unit, and a display unit;

[0007] The monitoring unit includes a steering wheel angle sensor, a vehicle body attitude sensor, and a wheel speed sensor; the steering wheel angle sensor monitors the rotation angle of the steering wheel in real time; the vehicle body attitude sensor monitors the vehicle body attitude information in real time; and the wheel speed sensor monitors the vehicle speed in real time.

[0008] The integration unit integrates the steering wheel rotation angle information, vehicle posture information, and vehicle speed information collected by the monitoring unit into the first data information;

[0009] The control unit analyzes and processes the first data information, including the steering wheel's rotation direction, rotation angle, and number of rotations, to generate the second data information.

[0010] The voice prompt unit performs real-time synchronous analysis of the second data information and issues a voice prompt; the voice prompt is that when the vehicle body posture information shows that the vehicle body deflection angle is lower than a preset threshold, the voice prompt unit issues a corresponding voice reminder.

[0011] The vibration alert unit provides a corresponding steering wheel vibration alert based on the second data information and generates a third data information. The steering wheel vibration alert is provided when the vehicle is in reverse and the vehicle speed in the first data information is lower than a preset speed; and when the control unit detects that the steering wheel is not straightened and the voice alert unit is turned off, a steering wheel vibration alert is provided.

[0012] The display unit includes an in-vehicle information interaction terminal, which displays preset information corresponding to the second and third data information in real time. The preset information includes steering wheel rotation direction, rotation angle, number of rotations, return-to-center prompt, and icon prompt.

[0013] Preferably, the voice prompts are: turn left to return to center, turn right to return to center, and centering complete.

[0014] Preferably, the voice prompt unit can be turned on and off via the central control screen.

[0015] Preferably, the preset speed is less than or equal to 5 km / h.

[0016] Preferably, when the steering wheel is rotated more than half a turn, the display unit displays the direction and angle of the steering wheel rotation in the form of a spiral and an arrow.

[0017] Preferably, the display unit is configured such that when the steering wheel is turned to the left, the display unit displays a spiral and arrow of a first color, and when the steering wheel is turned to the right, the display unit displays a spiral and arrow of a second color.

[0018] Preferably, the display unit is configured to display a third-color circle when the steering wheel is returned to center;

[0019] Preferably, when the vehicle speed is lower than a preset speed, the display unit displays a flashing steering wheel icon to remind the driver to straighten the steering wheel.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Solve the problem of novice drivers judging the centering direction: By using a steering wheel angle sensor to monitor the steering angle in real time and a vehicle posture sensor to capture the centering status, combined with a dynamic display of the direction of rotation / number of turns, it makes up for the lack of spatial perception of novice drivers and avoids the problem of not being able to judge the centering direction due to lack of experience. It specifically solves the dilemma of novice drivers when making sharp turns and reversing in the background technology.

[0022] 2. Improve driving safety: In dynamic driving scenarios (turning, U-turns), voice prompts supplement visual prompts, replacing the traditional judgment method that relies on driver experience. This reduces operational errors in complex environments, lowers the risk of accidents caused by oversteering / understeering, and avoids damage to vehicle components caused by parking with the steering wheel not straightened.

[0023] 3. Optimize driving experience: Breaking through existing reminder functions, it provides targeted reminders and real-time multi-dimensional prompts, allowing drivers to intuitively grasp the steering wheel status without having to memorize the number of turns, reducing driving tension and improving the problem that existing functions in the background technology cannot meet the needs of dynamic driving. Attached Figure Description

[0024] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0025] Figure 1 This is a diagram illustrating the components of a driving assistance system based on steering wheel angle monitoring and centering reminder, as described in the embodiment. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0028] It should be noted that descriptions involving "first," "second," etc., in the application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0029] Example

[0030] like Figure 1 As shown, a driving assistance system based on steering wheel angle monitoring and centering reminder includes: a monitoring unit, an integration unit, a control unit, a voice prompt unit, a vibration prompt unit, and a display unit.

[0031] The monitoring unit includes a steering wheel angle sensor, a vehicle body attitude sensor, and a wheel speed sensor; the steering wheel angle sensor monitors the rotation angle of the steering wheel in real time; the vehicle body attitude sensor monitors vehicle body attitude information (such as whether the vehicle body is straight) in real time.

[0032] The integration unit integrates the steering wheel rotation angle information, vehicle posture information, and vehicle speed information collected by the monitoring unit into the first data information.

[0033] The control unit analyzes and processes the first data information, including the steering wheel's rotation direction, rotation angle, and number of rotations, to generate the second data information.

[0034] The voice prompt unit performs real-time synchronous analysis of the second data information and issues voice prompts. The voice prompts are as follows: when the vehicle posture information shows that the vehicle body deflection angle is lower than a preset threshold, the voice prompt unit issues a corresponding voice reminder (such as "turn left to center", "turn right to center", or "centered"). At the same time, the user can set the voice prompt unit to be turned on and off through the central control screen.

[0035] The vibration alert unit provides corresponding steering wheel vibration alerts based on the second data information and generates third data information. The steering wheel vibration alert is provided when the vehicle is in reverse and the vehicle speed in the second data information is lower than a preset speed (e.g., less than or equal to 5 km / h). When the control unit detects that the steering wheel is not straightened and the voice alert unit is turned off, the steering wheel vibration alert is provided.

[0036] The display unit includes an in-vehicle information interaction terminal (such as an instrument panel or HUD), which displays preset information corresponding to the second and third data information in real time on the in-vehicle information interaction terminal. The preset information includes the steering wheel rotation direction, rotation angle, number of rotations, return-to-center prompt, and icon prompts (for example, when the steering wheel rotation angle exceeds half a turn, the display unit displays the steering wheel rotation direction and angle in the form of a spiral and an arrow; when the steering wheel is turned to the left, the display unit displays a spiral and an arrow of the first color (such as blue), and when it is turned to the right, the display unit displays a spiral and an arrow of the second color (such as orange); when the steering wheel is returned to center, the display unit displays a circle of the third color (such as green); when the vehicle speed is below 5 km / h, the display unit displays a flashing steering wheel icon to remind the driver to return the steering wheel to center).

[0037] The specific embodiments of the present invention have been described above. Based on the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of the present invention.

Claims

1. A driving assistance system based on steering wheel angle monitoring and centering reminder, characterized in that, It includes a monitoring unit, an integration unit, a control unit, a voice prompt unit, a vibration prompt unit, and a display unit; The monitoring unit includes a steering wheel angle sensor, a vehicle body attitude sensor, and a wheel speed sensor; the steering wheel angle sensor monitors the rotation angle of the steering wheel in real time; the vehicle body attitude sensor monitors the vehicle body attitude information in real time; and the wheel speed sensor monitors the vehicle speed in real time. The integration unit integrates the steering wheel rotation angle information, vehicle posture information, and vehicle speed information collected by the monitoring unit into the first data information; The control unit analyzes and processes the first data information, including the steering wheel's rotation direction, rotation angle, and number of rotations, to generate the second data information. The voice prompt unit performs real-time synchronous analysis of the second data information and issues a voice prompt; the voice prompt is that when the vehicle body posture information shows that the vehicle body deflection angle is lower than a preset threshold, the voice prompt unit issues a corresponding voice reminder. The vibration alert unit provides a corresponding steering wheel vibration alert based on the second data information and generates third data information; The steering wheel vibration reminder is triggered when the vehicle is in reverse and the vehicle speed in the first data information is lower than a preset speed. When the control unit detects that the steering wheel is not centered and the voice prompt unit is turned off, it will vibrate the steering wheel to remind the user. The display unit includes an in-vehicle information interaction terminal, which displays preset information corresponding to the second data information and the third data information in real time and synchronously. The preset information includes steering wheel rotation direction, rotation angle, number of rotations, return-to-center prompt, and icon prompt.

2. The driving assistance system based on steering wheel angle monitoring and centering reminder according to claim 1, characterized in that, The voice prompts are: turn left to return to center, turn right to return to center, and centering complete.

3. A driving assistance system based on steering wheel angle monitoring and centering reminder according to claim 1, characterized in that, The voice prompt unit can be turned on and off via the central control screen.

4. A driving assistance system based on steering wheel angle monitoring and centering reminder according to claim 1, characterized in that, The preset speed is less than or equal to 5 km / h.

5. A driving assistance system based on steering wheel angle monitoring and centering reminder according to claim 1, characterized in that, When the steering wheel is turned more than half a turn, the display unit shows the direction and angle of the steering wheel's rotation in the form of a spiral and an arrow.

6. A driving assistance system based on steering wheel angle monitoring and centering reminder according to claim 1, characterized in that, The display unit is configured such that when the steering wheel is turned to the left, the display unit displays a spiral and arrow of the first color, and when the steering wheel is turned to the right, the display unit displays a spiral and arrow of the second color.

7. A driving assistance system based on steering wheel angle monitoring and centering reminder according to claim 1, characterized in that, The display unit is configured to display a third-color circle when the steering wheel is returned to center.

8. A driving assistance system based on steering wheel angle monitoring and centering reminder according to claim 1, characterized in that, When the vehicle speed falls below a preset speed, the display unit will show a flashing steering wheel icon to remind the driver to straighten the steering wheel.

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