Driving Assist System Occupant Notification Before Mode Switch
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Solution Overview
Problem
The existing driving assist systems do not provide noticeable notifications to vehicle occupants when switching between different control modes, leading to a sense of strangeness or discomfort as the control modes change without prior awareness.
Innovation Solution
A driving assist system that recognizes changes in driving scenes and proactively notifies the occupant before switching control modes, using a processor and memory device to associate specific control modes with scene descriptions and switch modes only after informing the occupant, thereby reducing the sense of strangeness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the driving assist system switches control modes based on scene changes without notification, then the system responds quickly to environmental changes, but the occupant experiences a sense of strangeness and discomfort
Solution Approach 1:
The system performs preliminary notification to the occupant before switching control modes. The notification unit outputs information about the upcoming scene change and control mode switch in advance, allowing the occupant to mentally prepare for the transition. This preliminary action eliminates the suddenness that causes discomfort while maintaining quick actual response when the switch occurs.
2Loss of information
If the system provides detailed notifications about scene changes, then occupant awareness improves, but system complexity increases
Solution Approach 1:
The notification unit serves as an intermediary between the scene recognition system and the occupant. It translates complex scene change data into simple, understandable notifications that inform occupants of upcoming control mode switches without overwhelming them with technical details. This intermediary function maintains occupant awareness while avoiding excessive system complexity.
Data Source
AI summary
Driving assist control has plural control modes associated with plural scenes on a one-to-one basis. A scene corresponding to driving environment for a vehicle is a subject scene, and a selected control mode is one associated with the subject scene. Plural pieces of scene description information respectively define the plural scenes. Selected scene description information is one defining the subject scene and indicates parameters used in the driving assist control of the selected control mode. A processor executes the driving assist control of the selected control mode based on the parameters indicated by the selected scene description information, and switches the selected control mode by switching the selected scene description information. When the subject scene changes, the processor notifies an occupant of the vehicle of switching of the selected control mode before switching the selected scene description information and the selected control mode.