Lane Change Assistance with Pre-Lateral Movement Control
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Solution Overview
Problem
Existing driving assistance devices do not adequately consider moving objects, such as motorcycles or bicycles, when performing lane changes, especially in low-speed traffic conditions, leading to potential passing through spaces between vehicles during lane changes.
Innovation Solution
A driving assistance device that includes a lane identification unit, a space determination unit, and an operation control unit to detect passable spaces and control lateral movement to prevent moving objects from passing through spaces between vehicles during lane changes by causing the vehicle to approach the destination lane before the lane change.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle performs a direct lane change without preliminary lateral movement, then the lane change is completed quickly, but moving objects may pass through the space between vehicles during the lane change
Solution Approach 1:
The system performs a preliminary lateral movement operation before the actual lane change to reduce the passable space beside the destination lane. This preliminary action involves moving the vehicle laterally within the current lane to approach the destination lane boundary, which eliminates the gap that moving objects (motorcycles, bicycles) could exploit during the subsequent lane change maneuver.
Solution Approach 2:
The system applies preliminary anti-action by detecting the presence of a passable space beside the destination lane and counteracting the potential hazard before it can materialize. When a passable space is detected, the system performs the preliminary lateral movement to eliminate this space, thereby preventing moving objects from passing through during the lane change operation.
2Reliability
If the vehicle performs a lateral movement operation before lane change to eliminate passable space, then moving objects are prevented from passing through, but the overall lane change process takes longer
Solution Approach 1:
The system dynamically adjusts the lane change process based on real-time detection of passable spaces. Rather than always performing the preliminary lateral movement, the system selectively applies it only when a passable space is detected beside the destination lane. This dynamic approach balances safety requirements with operational efficiency and reduces unnecessary maneuvers.
Solution Approach 2:
The system incorporates feedback mechanisms by continuously monitoring the environment around the vehicle and detecting passable spaces using detection units. This feedback information triggers the preliminary lateral movement operation only when necessary, allowing the system to adapt its behavior based on actual conditions rather than following a fixed sequence.
Data Source
AI summary
A driving assistance device includes a lane change detection unit, a lane identification unit, a first space determination unit, an operation control unit. The lane identification unit identifies an original lane and a destination lane by using a detection result obtained by a boundary detection unit that detects a first boundary and a second boundary. The first boundary is a boundary between the original lane and the destination lane, and the second boundary is a boundary that defines the original lane and is located on a side opposite to the first boundary. When it is detected that the own vehicle is scheduled to perform a lane change and it is determined that the passable space is present, the operation control unit causes the own vehicle to perform a lateral movement operation before the lane change is performed. The lateral movement operation causes the own vehicle to approach the destination lane.