Attractive Flicker Headlight Control for Driver Gaze
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Solution Overview
Problem
Modern adaptive front lighting systems (AFS) and Adaptive Driving Beam (ADB) headlights do not necessarily lead to a direct increase in safety due to cognitive-psychological factors, as they can distract drivers with unpleasant light patterns, leading to a 'loss of control' and potentially riskier behavior, especially at night or in low-light conditions.
Innovation Solution
The 'attractive flicker' method, which uses an alternating light orientation signal to draw the driver's attention and then converts it into a maintenance signal with reduced frequency and amplitude, guiding the driver's gaze without being distracting, thereby enhancing situational awareness and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If modern adaptive front lighting systems (AFS) or ADB headlights are used to improve illumination, then visibility is improved, but driver distraction and cognitive overload increase
Solution Approach 1:
The patent introduces an intermediary system consisting of a gaze detection device and control unit that mediates between the lighting system and the driver. This intermediary monitors driver gaze continuously and dynamically adjusts lighting based on actual visual attention, preventing distraction by ensuring lighting changes only occur when the driver is not actively viewing critical areas.
Solution Approach 2:
The system implements closed-loop feedback by continuously detecting driver gaze parameters (position, duration, movements) and using this information to adaptively control the lighting system. This feedback mechanism ensures that lighting adjustments are synchronized with driver attention states, eliminating distracting light patterns while maintaining visibility where needed.
2Ease of operation
If gaze detection devices continuously monitor driver attention, then driver behavior can be controlled and trained, but system complexity increases
Solution Approach 1:
The control unit serves multiple functions: it processes gaze detection data, determines gaze parameters (position, duration, movements), controls lighting adjustments, and provides driver feedback. By consolidating these functions into a single multi-functional control unit, the system reduces overall complexity while maintaining comprehensive driver behavior control capabilities.
Solution Approach 2:
The system provides self-service through automated gaze parameter determination and lighting control based on pre-defined criteria. The control unit automatically interprets gaze detection data and adjusts lighting without requiring manual intervention or complex configuration, reducing operational complexity while maintaining ease of use.
3Loss of information
If dynamic light patterns are used to attract driver attention, then situational awareness is improved, but driver distraction increases
Solution Approach 1:
The system employs dynamic lighting adjustments that adapt in real-time to driver gaze behavior. Lighting parameters (intensity, distribution, activation) are dynamically modified based on detected gaze position and duration, providing enhanced situational awareness only in areas where the driver is already attending, thereby avoiding the creation of distracting dynamic light patterns in the driver's peripheral or unattended vision.
Solution Approach 2:
The lighting system applies local quality adjustments by modifying illumination only in specific regions corresponding to the driver's current gaze direction. Instead of applying uniform dynamic light patterns across the entire field of view, the system concentrates lighting enhancements locally where the driver is already focusing attention, improving situational awareness without creating distracting effects in other areas.
Data Source
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AI summary
The invention relates to a method for controlling and/or training the driving behavior of a driver during the operation of a motor vehicle, the motor vehicle having: (i) at least one view-sensing device concerning the driver, (ii) headlamp elements or at least one front luminaire, and (iii) means for sensing the current traffic situation, the method comprising the following: continuously sensing at least one viewing parameter of the driver by means of the at least one view-sensing device (eye-tracking device), at least one indicating signal for the driver being triggered if the sensed viewing parameters and/or the traffic situation has deviations beyond specifiable limits in comparison with stored corresponding normal values, the method being characterized in that the indicating signal is delivered to the driver by means of the "attractive flicker" method. The invention further relates to a driving assistance system (601) for a motor vehicle (600) for carrying out the method for controlling and/or training the driving behavior of a driver (602), and to a motor vehicle (600) comprising a driving assistance system (601) according to the invention.