Autonomous Vehicle Takeover Readiness Verification
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Solution Overview
Problem
Conventional driver conscious level determination methods in autonomous vehicles cannot assess whether a driver is capable of taking over manual driving control, as they only check for consciousness rather than readiness to handle the vehicle's state during a switch from autonomous to manual control.
Innovation Solution
An information presenting apparatus that requests and detects a response action from the driver to determine readiness for manual driving control, using a driver analyzing unit to assess arousal, fatigue, and driving stability, and a response action control unit to verify the driver's capability through specific tasks or interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the conventional driver conscious level determination method is used to check driver consciousness during autonomous driving control, then the driver's basic conscious state can be determined, but the driver's readiness to take over manual driving control cannot be assessed
Solution Approach 1:
The driver state assessment is segmented into multiple dimensions: basic consciousness determination (existing function) and takeover readiness assessment (new function). The system divides the evaluation into separate test items - one for consciousness and another for takeover readiness - allowing each aspect to be measured independently with appropriate methods
Solution Approach 2:
The system performs preliminary assessment of the driver's takeover readiness by administering test items before actually switching from autonomous to manual control. This advance evaluation includes checking whether the driver can properly operate the vehicle, ensuring that the driver is prepared for the transition before it occurs
2Reliability
If the autonomous driving control switches to manual driving control without verifying driver readiness, then the switching operation is simple and fast, but the safety of vehicle operation is compromised
Solution Approach 1:
The system implements periodic monitoring and assessment of the driver's state during autonomous driving control. Test items are administered at regular intervals or at predetermined timing to continuously evaluate whether the driver maintains readiness for potential takeover, rather than performing a single assessment
Solution Approach 2:
The system provides feedback to both the driver and the control system based on the takeover readiness assessment results. When the driver fails the test item or shows insufficient readiness, the system provides alerts or warnings, and can prevent or delay the switching to manual control until the driver demonstrates adequate readiness
3Measurement precision
If multiple test items are administered to comprehensively assess driver readiness, then the assessment accuracy improves, but the time required for assessment increases
Solution Approach 1:
The system administers test items selectively based on the driving situation and assessed risk level. Not all test items are required in all situations - the system adjusts the number and type of test items administered, using fewer items when the driving environment is simple and safer, and more comprehensive testing when conditions require higher assurance of driver readiness
Data Source
AI summary
An information presenting apparatus is used in an autonomous vehicle capable of switching between autonomous driving control and manual driving control. The information presenting apparatus determines a response action for checking that the driver is ready to take over when the autonomous driving control is switched to the manual driving control, performs control for requesting the driver to perform the response action determined, and detects the response action performed by the driver.