Autonomous Lane Change Planning to Avoid Mid-Sequence Manual Handover
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Solution Overview
Problem
When automated lane changes are impossible to complete, there is a risk that drivers will be unexpectedly switched to manual driving during multiple lane changes, causing confusion and potential deviation from the desired course.
Innovation Solution
A driving assistance system that prevents the switch from autonomous to manual driving by determining if lane changes can be completed autonomously and prompting manual intervention only when sufficient margin is available, using threshold distances and lane change conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If automated lane change control is implemented, then driving automation level is improved, but driver confusion occurs when manual intervention is required mid-sequence
Solution Approach 1:
The system performs preliminary assessment of the entire multiple lane change sequence before initiating automated control. It determines in advance whether all lane changes can be completed autonomously or if manual intervention will be required, and communicates this to the driver beforehand, preventing confusion during execution
Solution Approach 2:
The system provides continuous feedback to the driver about the automation status and required actions. It notifies the driver in advance when manual lane change operation will be required within the multiple lane change sequence, allowing the driver to prepare and switch control modes appropriately without sudden confusion
2Manufacturing precision
If multiple lane changes are performed in sequence, then route accuracy is improved, but driver confusion increases when automation switches to manual mode
Solution Approach 1:
The system determines in advance whether each lane change in the multiple lane change sequence can be performed autonomously or requires manual intervention. This preliminary assessment allows the system to maintain route accuracy while preparing appropriate control modes, and communicates the required driver actions beforehand to prevent confusion
Solution Approach 2:
The system provides advance notification to the driver about which lane changes will require manual operation within the multiple lane change sequence. This feedback mechanism ensures the driver is aware of upcoming manual intervention needs, maintaining operational clarity while achieving accurate route following
Data Source
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AI summary
A driving assistance method for performing a lane change of an own vehicle (1) by autonomous travel control, the driving assistance method including: calculating a target route along which the own vehicle (1) is caused to travel to a destination; determining (S3, S8) whether or not multiple lane changes are required to be performed successively for the own vehicle (1) to travel in accordance with the target route; determining (S6, S9) whether or not the lane change is performed by the autonomous travel control; and when a determination that, in a second or later lane changes among the multiple lane changes, a lane change is not performed by the autonomous travel control is included, not performing a first lane change by the autonomous travel control (S10).