Vehicle Wheel Route Prediction via Steering Angle Imaging
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Solution Overview
Problem
Drivers, especially those inexperienced, face difficulty in accurately predicting the traveling routes of vehicle wheels, particularly on uneven terrain like rocky paths, as existing driving support systems do not effectively display the wheel paths, making it hard to avoid obstacles and maintain vehicle stability.
Innovation Solution
A driving support device that includes an imaging unit, steering angle detection, route image generation, and superimposed image display to visually indicate the wheel paths as belt-like areas, ensuring accuracy and visibility of the wheel routes, with additional features for determining off-road conditions and shifting modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a driver sits on the driver seat to operate the vehicle, then the driver can control the vehicle, but the driver cannot accurately predict the travelling routes of the wheels
Solution Approach 1:
The system creates a virtual copy of the wheel travelling routes by detecting the steering angle and generating a route image that superimposes predicted wheel paths onto the captured image. This virtual representation allows the driver to accurately predict wheel routes without physically experiencing the vehicle's movement dynamics.
Solution Approach 2:
The route image generation unit acts as an intermediary between the steering input and the actual wheel movement. It processes the steering angle detection data and translates it into a visual representation of wheel paths, bridging the gap between driver input and predicted vehicle behavior.
2Reliability
If the driver needs to avoid treacherous ground on off-road terrain, then the driver must predict wheel routes accurately, but existing systems do not provide visual feedback of wheel paths
Solution Approach 1:
The system generates a visual copy of the wheel travelling routes by superimposing route images on the captured terrain image. This provides the driver with visual feedback about where the wheels will travel, enabling accurate prediction and avoidance of treacherous ground sections.
Solution Approach 2:
The system adds a visual dimension to wheel route information by displaying the predicted paths as overlay images. This transforms invisible wheel trajectories into visible guidance information, allowing drivers to perceive future wheel positions in the visual field.
3Loss of information
If the system displays the full travelling route of wheels, then the driver can see the complete path, but the accuracy of distant route predictions decreases
Solution Approach 1:
The system displays the wheel route image for a predetermined distance rather than the complete infinite path. This partial display approach maintains accuracy for the visible portion while avoiding the need to predict and display increasingly inaccurate distant routes beyond the predetermined range.
Data Source
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AI summary
Provided is a driving support device that allows a driver to confirm the travelling routes of the wheels of a vehicle from an image indicating the circumference of the vehicle. The driving support device includes: an imaging unit which takes a travelling direction image by shooting in the travelling direction of a vehicle; a steering angle detection unit which detects the steering angle of the vehicle; a route image generation unit-which predicts travelling routes of wheels provided on the travelling direction side of the vehicle, and generates a route image that indicates the travelling routes of the wheels as seen from the viewpoint of the imaging unit; a superimposed image generation unit which generates a superimposed image by superimposing the route image on the travelling direction image; and an image display unit which displays the superimposed image.