Automated Lane Change Sequencing After Offset Control
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Solution Overview
Problem
Existing vehicle systems fail to consider smooth lane changes during automated driving, leading to occupant anxiety when offset controls are performed without clear notification, thereby deteriorating convenience.
Innovation Solution
A control device for vehicles that performs automated driving with lane keep and offset controls, including a lane change control unit and an adjusting unit to finish offset control and move the vehicle to the center of the lane before executing a lane change, ensuring smooth transitions and clear notification to occupants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If offset control is performed during automated driving to increase distance from other vehicles, then safety is improved, but occupant anxiety increases and convenience deteriorates due to lack of clear notification
Solution Approach 1:
The control device provides feedback to the occupant by notifying them when offset control is being performed. This resolves the contradiction by maintaining the safety benefit of offset control while eliminating the convenience deterioration caused by lack of notification, thereby reducing occupant anxiety.
2Adaptability or versatility
If lane change control is performed during automated driving, then adaptability is improved, but smoothness deteriorates when offset control is simultaneously performed without proper sequencing
Solution Approach 1:
The control device performs preliminary action by completing the offset control before executing the lane change control. This sequencing ensures that the vehicle stabilizes its position and distance from other vehicles prior to changing lanes, thereby maintaining smooth operation while preserving lane change capability.
3Adaptability or versatility
If multiple controls (lane keep, offset control, lane change) are performed simultaneously, then functionality is improved, but control complexity increases leading to potential conflicts
Solution Approach 1:
The control device segments the control operations by dividing them into distinct phases: offset control phase and lane change phase. This segmentation reduces control complexity by preventing simultaneous execution of conflicting controls, while still providing comprehensive functionality through sequential execution of each control type.
Data Source
AI summary
A vehicle is capable of performing automated driving including a lane keep control, which is to automatically perform lane keep of a vehicle, and an offset control, which is to automatically offset a travel position of the vehicle in a width direction of the vehicle by increasing a distance from an other vehicle, which travels side-by-side with the vehicle. A control device for the vehicle includes a lane change control unit and an adjusting unit. The lane change control unit is configured to automatically perform lane change. The adjusting unit is configured to, when the lane change control unit performs the lane change during the lane keep control and the offset control, finish the offset control and move the vehicle to a center of a travel lane of the vehicle, and subsequently cause the lane change control unit to perform the lane change.