Steering Assistance Display Predicting Travel Path
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Solution Overview
Problem
Beginner drivers struggle to perform suitable steering operations when approaching corners at various vehicle speeds, as existing technologies only provide effective guidance at low speeds and fail to prompt appropriate steering adjustments at higher speeds.
Innovation Solution
A steering assistance display device that includes a detection unit for measuring the vehicle's radius and velocity, a calculation unit to determine the inertial force-based correction steering angle, and a display unit to show the direction of travel on a head-up display, allowing drivers to adjust their steering accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the actual steering angle is displayed to guide beginner drivers, then steering guidance is provided at low speeds, but the guidance becomes ineffective at higher vehicle speeds
Solution Approach 1:
The patent changes the parameter used for steering guidance from actual steering angle to predicted path of travel. This parameter change allows the display to remain effective across different vehicle speeds, as the predicted path is calculated by synthesizing actual steering angle with vehicle speed and radius of curvature, providing accurate guidance whether the vehicle is moving slowly or quickly.
Solution Approach 2:
The patent introduces dynamic calculation of the predicted path of travel that adapts to changing vehicle conditions. The calculation unit continuously updates the predicted path based on real-time vehicle speed, steering angle, and radius of curvature, making the guidance system dynamically responsive to the driver's actions and vehicle state rather than relying on static steering angle display.
2Loss of information
If beginner drivers rely on close-point vision for steering, then they can see immediate steering targets, but they cannot read the end of the corner and adjust steering angle in time
Solution Approach 1:
The patent displays the predicted path of travel in advance, showing beginner drivers where the vehicle will naturally travel based on current steering input. This allows drivers to see the future path before actually reaching it, enabling them to make timely steering adjustments to correct the predicted path and avoid late corrections that cause wobbling.
Solution Approach 2:
The predicted path of travel acts as an intermediary between the driver's current steering action and the actual vehicle trajectory. By displaying this intermediate information, the system bridges the gap between what the driver sees (close points) and what they need to know (end of corner position), allowing timely adjustments without requiring the driver to directly see the final destination.
3Ease of operation
If beginners adjust steering angle while in the curve, then they can react to immediate conditions, but the vehicle travel becomes wobbly and unstable
Solution Approach 1:
The patent provides visual feedback by displaying the predicted path of travel that shows the consequence of current steering actions. This feedback mechanism allows beginner drivers to see how their steering input will affect the vehicle path, enabling them to make smoother, more controlled adjustments that maintain stability rather than making abrupt corrections that cause wobbling.
Data Source
AI summary
The steering assistance display device according to this invention includes: a determination unit determining a radius of a curved road on which a vehicle travels, and a velocity and a steering angle of the vehicle; a calculation unit calculating a direction of travel of the vehicle on the basis of an inertial force determined on the basis of the radius and the velocity of the vehicle, and the steering angle; and a display unit displaying by a head-up display a direction of travel.