Vehicle Handover Scene Playback for Driver Readiness Assessment
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Solution Overview
Problem
Current vehicle handover systems from autonomous driving modes to human drivers do not adequately assess the readiness of human drivers to assume control, potentially compromising safety.
Innovation Solution
A system that monitors and records recent events relevant to the vehicle's situation, assesses the passenger's expected reaction time, and provides key event information to the driver to ensure a safe handover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the vehicle operates in autonomous driving mode without assessing driver readiness, then automation efficiency is improved, but safety during handover deteriorates
Solution Approach 1:
The system performs preliminary assessment of driver readiness before executing the handover from autonomous to manual mode. It monitors driver attention, evaluates reaction time, and presents scenario-based questions in advance to ensure the driver is prepared to take control, thereby preventing unsafe transitions.
Solution Approach 2:
The system continuously monitors driver state and provides feedback during the handover process. It assesses driver attention through cameras, measures reaction time to stimuli, and adjusts the handover procedure based on real-time driver performance, ensuring safety while maintaining automation efficiency.
2Reliability
If comprehensive driver assessment is implemented before handover, then handover safety is improved, but system complexity increases
Solution Approach 1:
The driver assessment system is divided into multiple independent modules: camera-based attention monitoring, reaction time measurement through visual/audio stimuli, scenario-based knowledge questions, and handover readiness evaluation. Each module operates independently and contributes to the overall assessment, making the complex system manageable and maintainable.
3Loss of information
If detailed event information is provided to driver during handover, then knowledge transfer is improved, but information overload occurs
Solution Approach 1:
The system provides partial information during handover based on driver readiness assessment. Instead of presenting all possible event details, it selectively displays relevant information such as recent collisions, sensor failures, or traffic violations that the driver needs to know, avoiding information overload while ensuring adequate knowledge transfer.
Data Source
AI summary
Disclosed herein is a vehicle handover system that monitors an environment of a vehicle. The vehicle handover system receives a transition request to change control of the vehicle from an automated driving mode to a passenger of the vehicle. The vehicle handover system detects a key event that may be relevant to the transition request and the detection of the key event is based on the monitored environment. The vehicle handover system may generate a handover scene that includes images associated with the key event, and the images include an image sequence over a time-period of the key event. Before the vehicle handover system changes control of the vehicle from the automated driving mode to the passenger, the handover scene is displayed to the passenger.