Vehicle Control Mode Controller for Autonomous Driving Safety
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Solution Overview
Problem
Existing vehicle control systems face challenges in determining the appropriate start of autonomous driving, particularly in situations involving divergence points, merging points, and destinations, which can lead to difficulties in executing autonomous driving modes safely and efficiently.
Innovation Solution
A vehicle control system that includes an inputter for occupant operations, an autonomous driving controller for steering and acceleration/deceleration, and a mode controller that prohibits the autonomous driving mode from starting when the vehicle reaches specific sections like divergence points, merging points, or destinations, while considering the presence and proximity of nearby vehicles, using sensors and navigation data to assess safety conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If autonomous driving mode is allowed to start immediately upon occupant input, then responsiveness and ease of operation are improved, but safety and reliability deteriorate due to inability to determine appropriate start timing at complex road sections
Solution Approach 1:
The system performs preliminary assessment of road section conditions before allowing autonomous driving mode to start. The mode controller checks whether the vehicle is in a complex road section (divergence point, merging point, or destination) before permitting mode transition, preventing unsafe starts while maintaining responsiveness to occupant input.
2Reliability
If autonomous driving is prohibited at divergence points, merging points, and destinations, then safety and reliability are improved, but productivity and ease of operation worsen due to restricted mode availability
Solution Approach 1:
The system applies different control rules to different road sections. Autonomous driving mode is prohibited specifically at complex sections (divergence points, merging points, destinations) while remaining available in normal sections, allowing the mode to be widely usable while maintaining safety at critical locations.
3Measurement precision
If the system prohibits autonomous driving mode at complex road sections, then determination accuracy and reliability are improved, but device complexity increases due to additional control logic and monitoring requirements
Solution Approach 1:
The road network is segmented into distinct types of sections (divergence points, merging points, destinations, and normal sections). The mode controller checks the vehicle's current location against these segmented categories, enabling accurate determination of appropriate start timing through structured classification rather than complex continuous analysis.
Data Source
AI summary
A vehicle control system includes: an inputter that accepts an occupant's operation of a host vehicle; an autonomous driving controller that executes an autonomous driving mode for controlling steering and acceleration/deceleration of the host vehicle in a case where a predetermined operation is accepted by the inputter; and a mode controller that prohibits the autonomous driving mode from being started by the autonomous driving controller in a case where the host vehicle has reached a predetermined section including at least one of a divergence point, a merging point, and a destination.