Vehicle Lane Detection Using Multi-Vehicle Position Thresholds
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Solution Overview
Problem
Existing lane boundary line detection devices struggle to accurately detect lane markings when a preceding vehicle is in the middle of a lane change, affecting the suitable control of a host vehicle's travel.
Innovation Solution
A vehicle control device and method that includes a detection unit for lane and vehicle positions based on peripheral information, and a control unit determining correct lane detection by assessing distances between the host vehicle lane and other vehicles, controlling the host vehicle based on threshold values to ensure accurate lane tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If lane boundary lines are detected by considering only the position of a preceding vehicle, then the detection accuracy is improved, but the reliability deteriorates when the preceding vehicle is making a lane change
Solution Approach 1:
The patent segments the evaluation of lane marking detection by separately analyzing multiple other vehicles rather than relying on a single preceding vehicle. The determination unit divides the detection task into individual assessments of each detected vehicle's position relative to the host vehicle lane, then aggregates these assessments to make a final determination about lane marking accuracy.
Solution Approach 2:
The system implements feedback by using the positions of multiple other vehicles to verify and correct lane marking detection. The determination unit continuously monitors whether detected lane markings are correct by comparing the positions of multiple other vehicles against the detected lane boundaries, providing ongoing validation and correction capability.
2Ease of operation
If the host vehicle control is based on a single preceding vehicle position, then the control simplicity is maintained, but the control accuracy deteriorates in dynamic traffic situations
Solution Approach 1:
The patent merges information from multiple other vehicles into a unified lane marking detection result. The determination unit combines the positional data of several other vehicles to collectively verify the accuracy of lane markings, merging multiple independent observations into a single reliable determination about lane position.
Solution Approach 2:
The determination unit serves multiple functions: it detects other vehicles, evaluates lane marking accuracy, and provides feedback for host vehicle control. This multi-functional component handles both the detection of individual vehicles and the aggregate evaluation of lane marking correctness, reducing overall system complexity.
Data Source
AI summary
A vehicle control device includes a control unit, which is a control unit that determines, on the basis of the positions of a plurality of other vehicles, whether or not the position of a host vehicle lane is being correctly detected by a detection unit, and controls the host vehicle by determining that the position of the host vehicle lane is being correctly detected by the detection unit, on the basis of another vehicle existing among the plurality of other vehicles, for which a first distance, which is a distance in a lane widthwise direction between the position of the host vehicle lane and a position corresponding to the position of the other vehicle, is less than a threshold value.