Autonomous Driving Resumption Logic Using Grip Intention
Solution Overview
Problem
Existing autonomous driving systems may resume control contrary to the driver's intention after a manual driving override, as they do not adequately consider the driver's continued operation intention.
Innovation Solution
An autonomous driving apparatus that determines the driver's continued operation intention by analyzing steering wheel grip strength and duration, setting tighter conditions for resuming autonomous driving when the intention is detected, and managing determination conditions to prevent unintended resumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the autonomous driving control is resumed based only on track difference threshold without considering driver intention, then the resumption condition is simple to meet, but the autonomous driving control may be resumed contrary to driver's intention
Solution Approach 1:
The system performs preliminary estimation of driver continued operation intention by analyzing steering wheel grip strength and duration before allowing autonomous driving control resumption. This preliminary assessment ensures that the system understands driver intent before making resumption decisions, preventing unintended mode switches.
Solution Approach 2:
The system continuously monitors steering wheel grip strength and duration as feedback signals to estimate driver intention. This feedback mechanism allows the system to adaptively determine whether to resume autonomous driving control based on real-time driver behavior, improving reliability while maintaining operational simplicity.
2Reliability
If the system monitors steering wheel grip strength and duration to estimate driver intention, then driver intention accuracy improves, but system complexity increases
Solution Approach 1:
The system uses existing steering wheel sensors to self-monitor grip strength and duration without requiring additional complex detection devices. By leveraging already-present hardware, the system achieves reliable driver intention estimation while minimizing increases in device complexity.
Solution Approach 2:
The system changes the parameters used for driver intention estimation from simple binary states to continuous measurements of grip strength and duration. This parameter transformation enables more accurate intention detection using existing sensor capabilities, balancing reliability improvement with acceptable system complexity.
Data Source
AI summary
An autonomous driving apparatus executes an autonomous driving control of a vehicle. When an override occurs during the autonomous driving control, switching from the autonomous driving control to manual driving is executed. A first determination condition is for determining that the autonomous driving control can be resumed, when the driver is estimated to have a continued operation intention, which is an intention to continue the manual driving, after the switching from the autonomous driving control to the manual driving is executed. A second determination condition is for determining that the autonomous driving control can be resumed, when the driver is estimated not to have the continued operation intention after the switching from the autonomous driving control to the manual driving is executed. The first determination condition is less likely to be met than the second determination condition.