Lane Change Status Feedback in Driving Assistance Control
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Solution Overview
Problem
In automated driving systems, occupants may forget that they have issued a lane change instruction if the lane change is delayed due to surrounding conditions, leading to unexpected changes and inadequate driving assistance.
Innovation Solution
A driving assistance device and method that includes a recognizer for situational awareness, a driving controller for vehicle steering, and an output controller to notify the occupant of the lane change status after a prescribed time, ensuring appropriate assistance by displaying information about the lane change and its status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lane change is delayed due to surrounding conditions, then the safety of lane change is improved, but the occupant may forget the instruction and the responsiveness deteriorates
Solution Approach 1:
The system provides feedback to the occupant by displaying a notification when a prescribed time has elapsed since the lane change instruction was given. This feedback mechanism reminds the occupant of the pending lane change instruction, preventing forgetfulness while allowing the system to wait for safe conditions before executing the lane change.
2Loss of time
If the lane change instruction is executed immediately, then the responsiveness is improved, but the safety may be compromised due to unfavorable surrounding conditions
Solution Approach 1:
The system performs preliminary action by recording the lane change instruction and preparing to execute it when conditions become favorable. The system monitors surrounding conditions continuously and waits for the appropriate moment to execute the pre-recorded instruction, balancing responsiveness with safety.
3Reliability
If the system continuously monitors and waits for favorable conditions, then the safety is improved, but the time required for lane change increases
Solution Approach 1:
The system uses periodic action by checking whether a prescribed time has elapsed since the instruction was given. This periodic check allows the system to balance monitoring safety conditions with providing timely notifications to the occupant, preventing excessive waiting while ensuring safety.
Data Source
AI summary
According to an embodiment, a driving assistance device includes a recognizer configured to recognize a surrounding situation of a vehicle, a driving controller configured to control at least steering of the vehicle on the basis of the surrounding situation recognized, a receiver configured to receive an operation of an occupant of the vehicle, and an output controller configured to cause an output to output a traveling state of the vehicle. The driving controller causes a lane change of the vehicle to be made when a receiver receives an instruction for allowing the vehicle to make the lane change and a condition in which the lane change is made is satisfied. The output controller causes the output to output information about the lane change when the lane change has not been started even though a first prescribed time period has elapsed after the receiver received the instruction.