Autonomous Lane Change Assistance for Closely Spaced Route Changes
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Solution Overview
Problem
Existing lane change assistance systems do not provide clear information to drivers about whether a lane change using autonomous travel control is possible, leading to uncertainty and potential discomfort.
Innovation Solution
A travel assistance method and device that determine whether assistance with autonomous lane change control is enabled based on the distance from the completion of a first lane change to the start of a second lane change, and notify the driver accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the system provides detailed information about autonomous lane change feasibility, then driver awareness and comfort improve, but system complexity increases
Solution Approach 1:
The system performs preliminary assessment of autonomous lane change feasibility by calculating the distance from the current position to the nearest position where a lane change can be executed. This pre-calculation allows the system to determine in advance whether autonomous lane change assistance is available, providing clear information to the driver before the lane change maneuver is attempted.
Solution Approach 2:
The system extracts only the critical information needed for driver decision-making: whether the calculated distance to the nearest lane change position is within the feasible range. By focusing on this specific parameter rather than providing all possible system data, the system maintains simplicity while delivering essential information about autonomous lane change capability.
2Ease of operation
If the system calculates and notifies driver about lane change feasibility, then driver comfort improves, but processing time increases
Solution Approach 1:
The system continuously calculates the distance to the nearest lane change position and maintains an updated assessment of autonomous lane change feasibility. By performing this calculation continuously rather than on-demand, the system ensures that driver comfort information is always available immediately when needed, eliminating processing delays.
Solution Approach 2:
The feasibility assessment is performed in advance and maintained in ready state, so when the driver needs information about autonomous lane change capability, the system can provide it immediately without requiring new calculations at the moment of driver interaction.
Data Source
AI summary
A travel assistance method and device, when performing a first lane change with autonomous lane change control and then performing a second lane change for traveling along a set travel route, determines whether or not a distance from a position at which the first lane change has concluded to a position at which the second lane change can be started is a predetermined distance or less. When it is determined that the distance is the predetermined distance or less, whether assistance with the autonomous lane change control is enabled for the second lane change is determined. When assistance with the autonomous lane change control is enabled, whether a lane change can be made from a subject vehicle lane to an adjacent lane is determined. When the lane change to the adjacent lane can be made, the second lane change is made with the autonomous lane change control.