Vehicle Control System Mode Switching via Occupant Gaze
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Solution Overview
Problem
In existing vehicle control systems, occupants may not adequately recognize the conditions under which different automatic driving modes are engaged, leading to potential safety issues due to unclear task responsibilities and awareness of the driving mode.
Innovation Solution
A vehicle control system that includes detection units for occupant interaction and gaze direction, allowing the system to switch between automatic driving modes based on the operation of driving elements, gaze direction, and arousal levels, ensuring appropriate task allocation and awareness through display units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If multiple automatic driving modes with different automation degrees are provided, then the system provides more detailed task allocation and control precision, but the occupant's ability to recognize current mode conditions deteriorates
Solution Approach 1:
The system uses different color tones for different automatic driving modes to enable intuitive visual recognition. The notification display shows specific color patterns that correspond to different automation degrees, allowing occupants to quickly understand the current mode without complex information processing.
Solution Approach 2:
The notification information is segmented into distinct visual elements including color-coded indicators, icons representing specific modes, and structured layout elements. This segmentation makes it easier for occupants to quickly identify and understand the current automatic driving mode among multiple available modes.
2Measurement precision
If the system monitors multiple conditions (driving element operation, gaze direction, arousal degree) to determine mode execution, then the control precision and safety improve, but the system complexity increases
Solution Approach 1:
The notification display unit serves multiple functions: it notifies mode transitions, indicates current automation degree, provides task allocation information, and confirms system state. This multi-functionality reduces the need for separate notification mechanisms and simplifies the overall system architecture while maintaining high measurement precision through integrated sensor data.
3Loss of information
If the notification display provides comprehensive information about automatic driving modes, then the occupant's awareness and understanding improve, but the information processing time and display complexity increase
Solution Approach 1:
Different color tones are used to represent different automatic driving modes, enabling instantaneous visual recognition and understanding. This color-coding system allows occupants to grasp the current mode state immediately without needing to process detailed textual or numerical information, thus reducing notification processing time while maintaining information completeness.
Solution Approach 2:
The system provides notification information in advance of mode transitions and maintains continuous display of mode status. This preliminary and continuous information provision allows occupants to understand and adapt to upcoming or current automatic driving conditions without delays, reducing the time needed for information processing and response.
Data Source
AI summary
A vehicle control system includes a first detection unit configured to detect an operation of a driving operation element by an occupant, a second detection unit configured to detect a direction of a face or a line of sight of the occupant, and a switching control unit configured to switch an automatic driving mode executed by an automatic driving control unit to one of a plurality of automatic driving modes including a first automatic driving mode and a second automatic driving mode. The switching control unit sets a condition for executing the first automatic driving mode, and sets a condition for executing the second automatic driving mode.