Lane Change System Path Adjustment for Collision Avoidance
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Solution Overview
Problem
Existing lane change systems do not effectively address how to safely correct a path when a parallel running vehicle changes lanes during the host vehicle's lane change, potentially leading to collisions.
Innovation Solution
A lane change system that utilizes sensors such as stereo cameras, laser radars, and millimeter wave radars to detect relative positions and speeds of peripheral vehicles, calculates collision risks, and adjusts steering and braking to ensure safe lane changes by generating a target path based on determined collision risks, allowing the system to safely change lanes even if a parallel vehicle has changed lanes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the host vehicle performs autonomous lane change based on extracted lane information, then lane change automation is improved, but collision risk increases when parallel vehicles change lanes simultaneously
Solution Approach 1:
The system continuously monitors the positions and lane change intentions of parallel vehicles during the lane change process. When a parallel vehicle's lane change intention is detected or its position enters a dangerous zone, the system receives feedback and automatically adjusts the lane change path or aborts the maneuver to avoid collision.
Solution Approach 2:
The system performs preliminary detection of parallel vehicles and their lane change intentions before completing the lane change maneuver. By anticipating potential conflicts in advance, the system can prepare alternative paths or delay the lane change until it is safe, preventing collision before it occurs.
2Device complexity
If the vehicle follows a fixed reference line for steering control, then steering control simplicity is improved, but path safety deteriorates when dynamic obstacles appear
Solution Approach 1:
The system dynamically adjusts the reference line based on real-time detection of parallel vehicles and their lane change intentions. When a conflict is detected, the reference line is shifted or reshaped to avoid the parallel vehicle, allowing the simple reference line-based steering control to adapt to dynamic safety requirements without increasing system complexity.
Data Source
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AI summary
A lane change system that ensures safety is provided. This lane change system changes lanes by controlling steering in accordance with a path moving from a first lane in which the host vehicle is traveling to a second lane different from the lane in which the host vehicle is traveling, wherein the lane changing is stopped when there are any peripheral vehicles at high risk for collision in the second lane during a lane change from the first lane to the second lane.