Steering Wheel Grasp Guidance for Autonomous Handover Control
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Solution Overview
Problem
Existing systems fail to provide smooth guidance for transitioning from autonomous driving to manual driving by considering the peripheral environment and adjusting operation amount and speed when grasping the steering wheel.
Innovation Solution
A control device that acquires a planned travel route and controls a display portion on the steering wheel to show grasping positions, flashing displays, and transition notifications, adjusting flashing speed based on vehicle speed and steering angle, to guide smooth manual driving transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If grasping positions are displayed based on road state and driver state only, then guidance is provided, but the guidance does not consider peripheral environment and operation adjustments
Solution Approach 1:
The system displays grasping positions in advance based on the planned travel route before the driver needs to take control. By pre-calculating and displaying the future grasping positions that consider the peripheral environment (road conditions, obstacles, etc.), the driver can mentally prepare and execute the transition smoothly without sudden adjustments.
Solution Approach 2:
The grasping position display is dynamically adjusted based on multiple factors including planned travel route, current road state, driver state, and peripheral environment. The system continuously updates the displayed grasping positions to reflect changing conditions, making the guidance adaptable and context-aware rather than static.
2Extent of automation
If autonomous driving system determines grasping positions, then transition guidance is provided, but operation amount and speed adjustments are not considered
Solution Approach 1:
The system provides visual feedback by displaying the future grasping positions on the steering wheel or display device. This feedback loop allows the driver to understand what operations are needed and adjust their manual steering input accordingly, making the transition from autonomous to manual driving easier and more intuitive.
Solution Approach 2:
The autonomous driving system pre-determines and displays the grasping positions and required steering operations before the driver needs to take control. This preliminary calculation of operation amount and speed based on the planned route allows the driver to anticipate and smoothly execute the transition without sudden or confusing manual inputs.
3Measurement precision
If grasping positions are displayed without considering future operations, then current state guidance is provided, but future operation guidance is lost
Solution Approach 1:
The system displays not just the current grasping position but also the future grasping positions along the planned travel route. This allows the driver to see ahead and prepare for upcoming maneuvers, reducing the time needed for reaction and adjustment when transitioning to manual driving.
Solution Approach 2:
The displayed grasping positions are dynamically updated to show both current and future positions based on the planned route and real-time conditions. This dynamic display provides continuous guidance as the vehicle progresses, helping the driver anticipate upcoming operations without losing precision in current position indication.
Data Source
AI summary
The control device, includes: an acquisition section configured to acquire a planned travel route of a vehicle; and a control section that, at a time of transitioning from autonomous driving to manual driving and on the basis of the planned travel route, controls a display portion configured to display grasping positions of a steering wheel that should be grasped by a user.