Vehicle Speed Regulation Using White Line Tracking
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Solution Overview
Problem
Existing vehicle speed regulation systems, such as ACC, LSF, and ULSF, are overly restrictive for drivers in urban and suburban environments, particularly during lane changes and target vehicle insertions, leading to frequent system reactivation and reduced driver mobility, which can cause annoyance and increase the risk of collisions.
Innovation Solution
A method utilizing a white line tracking device to differentiate between overtaking and insertion situations, allowing the regulation system to remain active during insertions and deactivate during overtaking, ensuring more fluid and safe driving by managing speed regulation based on the vehicle's position relative to the lane markings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the regulation system is deactivated when no target vehicle is detected or during lane changes, then the driver is encouraged to stay in lane and avoid collisions, but the driver mobility is reduced and the system becomes overly restrictive
Solution Approach 1:
The patent applies local quality by differentiating the regulation system's behavior based on the specific situation detected. When a white line crossing is detected, the system determines whether it's an overtaking maneuver (lane change with indicator) or an insertion situation (lane change without indicator). The regulation is maintained during insertion situations but deactivated during overtaking, providing localized appropriate response rather than a blanket deactivation.
Solution Approach 2:
The system dynamically adjusts its behavior based on real-time conditions. By using the white line tracking device and indicator status, the system determines the driver's intention and dynamically maintains or deactivates regulation accordingly. This dynamic approach allows the system to adapt to different driving scenarios rather than following a static deactivation rule.
2Ease of operation
If the regulation system remains active during lane changes, then driver mobility is improved, but the risk of collisions with motorcycles traveling between lanes increases
Solution Approach 1:
The system applies local quality by providing different levels of regulation control based on the specific lane change context. During overtaking maneuvers where the driver has indicated intention, the regulation is deactivated to prevent conflicts with vehicles in adjacent lanes. During insertion situations where no indicator is given, regulation is maintained to handle the inserted vehicle appropriately.
Solution Approach 2:
The white line tracking device acts as an intermediary that provides information about lane position and crossing events. This intermediary information, combined with indicator status, allows the system to make informed decisions about whether to maintain or deactivate regulation, reducing collision risk while preserving driver mobility.
3Adaptability or versatility
If the regulation system is frequently reactivated during insertion situations, then the system adapts to new target vehicles, but driver annoyance increases
Solution Approach 1:
The system performs preliminary action by detecting the insertion situation in advance through the white line tracking device before the rangefinder detects the new target vehicle. By identifying the lane change event and determining it's an insertion (no indicator given), the system prepares to maintain regulation continuity, preventing the need for frequent reactivation and associated driver annoyance.
4Reliability
If the regulation system deactivates during overtaking, then safety is improved by encouraging lane discipline, but the system complexity increases due to differentiation requirements
Solution Approach 1:
The patent applies universality by using the white line tracking device, which already exists for alerting drivers about unintended lane crossings, for an additional function: differentiating between overtaking and insertion situations. This multi-functional use of the existing device avoids adding complex new differentiation mechanisms while achieving the required situation recognition.
Data Source
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AI summary
A method of managing speed regulation of a vehicle equipped with at least one regulating system, the method comprising: - a step of receiving (204) a signal (LDW) originating from a device for tracking white lines, said signal corresponding to an item of information as to the overstepping of a marking line on the ground by the vehicle, in which the regulation is managed as a function of the signal received from said device for tracking white lines.