Driver Abnormality Stop Control With Lane Change Notifications
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Solution Overview
Problem
During driver abnormality, existing vehicle control systems fail to effectively notify occupants about the vehicle's control actions and stopping locations, leading to anxiety and uncertainty.
Innovation Solution
A vehicle control system comprising a driver monitoring device, notification device, and controller that performs automatic stop control, decelerates the vehicle, changes lanes, moves to a road shoulder, and notifies occupants visually and audibly of these actions and their status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If automatic stop control is executed without notification, then the vehicle can be stopped quickly, but occupants experience anxiety and uncertainty about the vehicle's actions
Solution Approach 1:
The notification device provides continuous feedback to occupants about the vehicle's control actions during automatic stop. The controller executes multiple operations (deceleration, lane change, positioning) while the notification device informs occupants of each action's status, creating a feedback loop that reduces uncertainty and anxiety while maintaining efficient stopping.
2Ease of operation
If multiple control operations are performed during automatic stop, then the vehicle can stop more safely and conveniently, but the control system becomes more complex
Solution Approach 1:
The automatic stop control is segmented into distinct operations: first operation (deceleration to specified speed), second operation (further deceleration and stopping), third operation (lane change), and fourth operation (positioning on road shoulder). Each operation is independently controlled and can be notified to occupants, allowing complex functionality to be managed through modular, manageable segments.
3Loss of information
If notification is provided during automatic stop, then occupants understand vehicle actions, but the notification system adds complexity
Solution Approach 1:
The notification device serves multiple functions: notifying occupants of the automatic stop execution, informing them of each control operation's status (deceleration, lane change, positioning), and providing information about stopping location. This multi-functionality reduces the need for separate notification systems for each type of information.
Data Source
AI summary
A vehicle control system can have an in-vehicle camera that monitors a state of the driver; a center display and a meter device that notify the occupant of information; and a controller that executes automatic stop control in the case where the driver abnormality is determined. The controller can perform: a first operation to decelerate the vehicle to a specified speed when the abnormality is determined; a second operation to further decelerate and stop the vehicle after the first operation; a third operation to change a lane of the vehicle between the first operation and the second operation; and a fourth operation to move the vehicle to a road shoulder between the first operation and the second operation. The controller can notify the operation performed, and notify of a stop of the operation in the case where the operation performed is stopped.