Autonomous Driving Handover Alerts for Hands-Off Hazard Conditions
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Solution Overview
Problem
Autonomous driving systems fail to effectively notify users when transitioning from autonomous to manual control, particularly in hazardous driving conditions, leading to potential accidents due to lack of user preparedness.
Innovation Solution
An autonomous driving control apparatus that provides visual and audible notifications to users when a hands-off situation is detected for an extended period or during high lateral acceleration, and ramps down output torque based on road curvature and acceleration, using a display device, notification device, and sensor data to guide users back to manual control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If autonomous driving control is implemented without hands-off notification, then automation level is improved, but user safety deteriorates due to lack of notification during hazardous conditions
Solution Approach 1:
The system performs preliminary actions by detecting hands-off situations and hazardous driving conditions (high lateral acceleration) before they become critical, then provides advance notification to the user through visual and audible alerts. This allows the user to prepare for potential control transitions, maintaining both high automation during normal operation and user safety during hazardous conditions.
2Reliability
If notification is provided during hands-off situation, then user safety is improved, but device complexity increases due to additional notification systems
Solution Approach 1:
The notification device serves multiple functions: it provides hazard warnings, hands-off situation alerts, and control transition notifications. By making the notification system multi-functional, the patent avoids adding separate dedicated devices for each function, thereby improving user safety without proportionally increasing device complexity.
3Reliability
If torque ramping down is implemented during autonomous control release, then user safety is improved, but control response time increases
Solution Approach 1:
The torque ramping down process is implemented dynamically based on real-time detection of hands-off situations and hazardous conditions. The control system adjusts the torque reduction rate and duration according to the specific situation, allowing faster response when conditions permit and more gradual ramping when safety requires additional preparation time for the user.
Data Source
AI summary
Disclosed is an autonomous driving control apparatus which includes a display device, a notification device, a memory storing at least one instruction, and a controller operatively connected with the display device, the notification device, and the memory. For example, the at least one instruction is configured to, when executed by the controller, cause the autonomous driving control apparatus to: determine, while performing autonomous driving control of a host vehicle, a hands-off time duration in which a driver of the host vehicle takes both hands off a steering wheel of the host vehicle, and provide a first notification using at least one of the display device or the notification device, based on the hands-off time duration being greater than a first threshold time duration or based on lateral acceleration of the host vehicle being maintained at a value greater than a threshold value for at least a second threshold time duration in a hands-off situation.