Steering Assistant Lane Width Setting with Virtual Line
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Solution Overview
Problem
Existing steering assistant systems face challenges in providing consistent and appropriate steering assistance when lane lines are present on only one side, leading to frequent unnecessary control interventions and variations in performance, which can annoy drivers.
Innovation Solution
A steering assistant system that includes a lane width setting unit and a determination unit, which sets a lane width based on the presence or absence of lane lines on both sides and uses a virtual lane line when necessary, to adjust the timing and amount of control intervention for optimal steering assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If steering assistance control is executed based on lane line on either one side, then steering assistance can be provided in single lane line conditions, but control intervention starts more frequently at unnecessary timing
Solution Approach 1:
The patent introduces a determination unit as an intermediary that analyzes lane line states and transitions before triggering steering assistance control. This intermediary layer filters out false positives and ensures control intervention only occurs when appropriate, resolving the contradiction between providing assistance in single lane line conditions and avoiding unnecessary interventions.
2Adaptability or versatility
If steering assistance control is executed based on lane line on either one side, then assistance can be provided in single lane line conditions, but performance varies between single and double lane line cases
Solution Approach 1:
The patent applies local quality by providing different steering assistance control strategies based on the specific lane line state (single side vs. both sides). The determination unit identifies the local condition and adjusts control parameters accordingly, ensuring optimal and consistent performance for each scenario rather than using a uniform approach.
Solution Approach 2:
The patent implements dynamics by enabling the steering assistance control to adapt and change based on the detected lane line state. The system dynamically adjusts its behavior - using different control amounts and intervention timing - depending on whether lane lines are present on one side or both sides, maintaining performance consistency across varying conditions.
3Ease of manufacture
If lane width is calculated using only detected lane lines, then calculation is simple, but inaccurate when lane lines are missing on one side
Solution Approach 1:
The patent applies preliminary action by detecting the presence or absence of lane lines on both sides before calculating lane width. The determination unit proactively identifies single lane line states and triggers appropriate handling procedures, ensuring accurate lane width calculation even when one side is missing by preparing the system in advance for such conditions.
Data Source
AI summary
A steering assistant includes a lane width setting unit and a determination unit. The lane width setting unit provides setting of a lane width between lane lines on right and left sides of an own vehicle. The determination unit monitors a lane line state to determine how the lane line state has transited, in which the lane line state involves presence or absence of the lane lines on the right and left sides of the own vehicle. The lane width setting unit provides the setting of the lane width, with a virtual lane line assumed on side on which the lane line is missing, when it is determined that the lane line state has transited to a state in which the lane line is provided on either one of the right and left sides of the own vehicle.