Lane Change Entry Control Using Rear Vehicle Yield Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lane change technologies in vehicles do not adequately consider the relative relationship with target vehicles in the intended lane change, leading to potential safety risks and uncertainties.
Innovation Solution
A driving assistance system that senses the deceleration of a target vehicle in the intended lane change lane, monitors its yielding behavior, and controls the host vehicle's entry behavior to ensure a safe lane change by moving into the yielded space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the host vehicle performs a lane change based on conventional technologies that do not adequately consider the relative relationship with target vehicles, then the lane change operation can be executed, but safety risks and uncertainties increase
Solution Approach 1:
The system performs preliminary detection of the target vehicle's deceleration behavior before executing the lane change. By detecting deceleration that indicates yielding intent in advance, the system prepares for safe lane change execution, resolving the contradiction by adding preliminary detection capability that enhances safety without requiring complex real-time intervention systems
Solution Approach 2:
The system continuously monitors the target vehicle's behavior during the lane change process and provides feedback to adjust the host vehicle's entry behavior. This feedback mechanism allows the system to respond to the target vehicle's yielding actions, improving safety while maintaining manageable system complexity through adaptive control
2Measurement precision
If the driving assistance system monitors the target vehicle's yielding behavior through deceleration detection, then the accuracy of determining lane change safety improves, but the time required for lane change execution increases
Solution Approach 1:
The system changes the detection parameter from monitoring multiple aspects of target vehicle behavior to specifically monitoring deceleration as an indicator of yielding intent. This parameter change enables accurate detection of yielding behavior while reducing the time required for assessment, as deceleration is a readily detectable and immediate parameter that directly indicates the target vehicle's intention to yield
3Speed
If the host vehicle enters the target lane without confirming the target vehicle's yielding intent, then the lane change speed increases, but the safety risk increases
Solution Approach 1:
The system applies preliminary anti-action by detecting the target vehicle's deceleration that indicates yielding intent before the host vehicle enters the target lane. This preliminary detection of the opposing vehicle's yielding behavior allows the host vehicle to proceed with lane change at appropriate speed while minimizing collision risk, as the system confirms the target vehicle's intention to yield before execution
Data Source
AI summary
A driving assistance system includes at least one processor with a memory storing computer program code. The at least one processor with the memory is configured to cause the driving assistance system to: schedule a lane change of the host vehicle; sense a deceleration of a target vehicle traveling on a rear side of the host vehicle in a target lane toward which the host vehicle plans to make the lane change; monitor a yielding behavior of the target vehicle when a deceleration of the target vehicle is sensed, the yielding behavior being a behavior in which the target vehicle yields an entry space of the target lane as a lane change destination to the host vehicle; and control an entry behavior of the host vehicle.