Vehicle Branch Control for Interrupted Lane Change Handover
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Solution Overview
Problem
Existing vehicle control systems may not provide suitable control for drivers, particularly in situations requiring lane changes or lane keeping, leading to potential discomfort and inconvenience.
Innovation Solution
A control device and method that autonomously controls vehicle steering to execute lane keeping and lane change maneuvers, including the ability to resume or stop these controls based on recognized surroundings and predefined conditions, allowing the driver to take over when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the control device continues lane keeping control after an event occurs during lane change, then the automation level is maintained, but the driver experiences discomfort and the control becomes unsuitable
Solution Approach 1:
The control device dynamically adjusts the level of automation based on the driving situation. When an event occurs during lane change (such as obstacle detection or system limitations), the control device transitions from continued automation to stopping control, allowing the driver to take over. This dynamic adaptation resolves the contradiction by making the automation level flexible rather than fixed, improving driver comfort while maintaining high automation during normal operations.
2Ease of operation
If the control device stops lane keeping control when an event occurs during lane change, then the driver comfort is improved, but the automation level decreases and requires manual intervention
Solution Approach 1:
The control device applies preliminary anti-action by proactively stopping lane keeping control before the event fully impacts the driver experience. When an event is detected during lane change, the system preemptively halts automation and notifies the driver, preventing potential discomfort or unsafe situations. This approach prioritizes driver comfort and safety over maintaining continuous automation.
3Productivity
If the control device executes lane change control automatically, then the productivity is improved, but the reliability decreases when events occur during the maneuver
Solution Approach 1:
The control device implements feedback mechanisms to monitor the lane change process continuously. When an event occurs during automatic lane change execution, the system receives feedback about the situation (obstacle detection, system limitations) and adjusts its behavior accordingly by stopping control and notifying the driver. This feedback loop maintains reliability by ensuring the system responds appropriately to changing conditions while still achieving efficient lane changes under normal circumstances.
Data Source
AI summary
A control device controls at least steering of a host vehicle to execute branch control, the branch control including lane keeping control for causing the host vehicle to travel so that the host vehicle does not deviate from a first lane in which the host vehicle travels, and lane change control for causing the host vehicle to change lanes to a second lane branching from the first lane, and stops the lane keeping control and the lane change control when an event in which the branch control is not executable occurs after starting the lane change of the host vehicle from the first lane to the second lane on the basis of the lane change control, in a case in which the host vehicle plans on traveling from the first lane to the second lane through execution of the lane keeping control and the lane change control.