Vehicle Information Provision Device for Dynamic Hazard Display Control
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Solution Overview
Problem
During self-driving, drivers may become distracted by potential hazards in their surroundings when images of these hazards are displayed on the windshield, leading to discomfort and reduced relaxation.
Innovation Solution
A vehicle information provision device that includes a travel state detection unit, surroundings situation detection unit, potential hazard detection unit, driver state detection unit, and information control unit, which determines whether the driver is observing the surroundings and only provides or masks potential hazard information accordingly, allowing the driver to focus on other aspects when not needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If potential hazard information is displayed on the windshield during self-driving, then the driver can observe potential hazards, but the driver becomes distracted and uncomfortable when not actively monitoring the surroundings
Solution Approach 1:
The display device dynamically adjusts its operation based on the driver's observed state. When the driver is determined to be observing the surroundings, the display operates normally to show potential hazards. When the driver is not observing, the display enters a restricted operation mode to reduce distraction. This dynamic adaptation resolves the contradiction by making the system's behavior contingent on real-time driver state.
Solution Approach 2:
The system uses a driver state detection unit to continuously monitor whether the driver is observing the surroundings or not. This feedback information is fed back to the control unit, which then adjusts the display operation accordingly. The feedback loop enables the system to respond to driver state changes and adjust information provision to maintain awareness while minimizing distraction.
2Reliability
If the display device continuously shows potential hazard information, then the driver maintains awareness of surroundings, but the driver cannot relax and enjoy the self-driving experience
Solution Approach 1:
Instead of continuous display operation, the system employs periodic assessment of driver state through the driver state detection unit. The display operation is modulated based on these periodic checks - switching between normal operation and restricted operation modes. This periodic action allows the driver to experience periods of relaxation when hazards are not present or when the driver is not actively monitoring, while maintaining the capability for continuous awareness through periodic updates.
Solution Approach 2:
The display device transitions between different operational states (normal operation and restricted operation) based on detected driver behavior. This dynamic state change enables the system to balance between maintaining hazard awareness and allowing driver relaxation, resolving the contradiction between continuous monitoring and comfortable self-driving experience.
3Loss of information
If the display device provides comprehensive hazard information, then the driver has complete situational awareness, but the information becomes overwhelming and distracting
Solution Approach 1:
The display device applies different display qualities to different operational contexts. During normal operation, comprehensive hazard information is displayed. During restricted operation when the driver is not actively monitoring, the display provides reduced or simplified information. This local quality adjustment - tailoring information density to the specific operational context - maintains completeness when needed while preventing information overload during relaxation periods.
Solution Approach 2:
The system employs partial action by providing only the necessary level of hazard information based on driver state. When the driver is observing, full information is provided. When not observing, restricted information is provided - just enough to maintain basic awareness without causing distraction. This partial action approach avoids the excessiveness of continuous comprehensive information display while preventing information loss.
Data Source
AI summary
A vehicle information provision device includes a travel state detection unit, a surroundings situation detection unit, a potential hazard detection unit detecting a potential hazard based on the situation detected by the surroundings situation detection unit, a driver state detection unit detecting the driver state during self-driving of a vehicle; a driver state determination unit configured to determine whether or not the driver is observing the situation in the vehicle surroundings based on the state of the driver detected by the driver state detection unit, and an information control unit that provides information to the driver regarding the potential hazard in a case in which the driver is observing the situation in the vehicle surroundings, and restricts provision of information to the driver in a case in which the driver is not observing the situation in the vehicle surroundings during self-driving of the vehicle.