Moving Light Visual Cue for Driver Assistance Mode Transition
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Solution Overview
Problem
Existing driver assistance systems face challenges in effectively and reliably communicating mode changes from automatic to manual drive, as drivers often divert attention from the road to infotainment systems during autonomous driving, making it difficult to regain control quickly and safely.
Innovation Solution
A method utilizing a lighting device to generate a moving light effect along a predetermined path, indicating mode changes between automatic and manual drive modes, with the direction and animation of the light signaling the transition of control from the driver assistance device to the driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the driver assistance device operates in automatic drive mode with infotainment systems, then driver relaxation and multimedia usage are improved, but driver attention to road situation and control assumption deteriorates
Solution Approach 1:
The lighting device activates before the automatic drive mode is fully engaged or when control transfer is needed, preparing the driver for potential control assumption. The moving light effect serves as a preliminary warning that draws driver attention before critical situations arise, allowing the driver to transition from infotainment focus to road monitoring proactively.
Solution Approach 2:
The lighting device acts as an intermediary between the driver assistance device and the driver. Instead of directly requiring driver attention or causing abrupt control transfers, the moving light effect mediates communication by subtly drawing the driver's gaze toward the steering wheel and road situation, facilitating smooth attention reallocation without disrupting the relaxed automatic driving experience.
2Reliability
If alarm signals are output to alert the driver, then driver attention is directed to control, but driver distraction and unreliable control assumption persist
Solution Approach 1:
The lighting device utilizes changes in light characteristics (brightness, movement pattern, color) to communicate with the driver. The moving light effect creates a visually appealing yet attention-grabbing pattern that draws the driver's eye without causing alarm or distraction. The light animates along predetermined paths, creating a calm yet effective visual cue that encourages driver engagement without the negative effects of traditional alarm signals.
3Reliability
If the lighting device generates a moving light effect, then driver attention direction and control transition signaling are improved, but device complexity increases
Solution Approach 1:
The lighting device is segmented into multiple independent light sources or light-emitting elements arranged along predetermined paths. Each segment can be controlled independently to create the moving light effect, allowing modular design and control. This segmentation enables complex visual patterns to be achieved through coordinated control of simpler individual light elements, managing overall device complexity while maintaining effective communication capability.
Data Source
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AI summary
The invention relates to a method for operating a driver assistance device of a motor vehicle (1), wherein the driver assistance device is switched between an automatic drive mode, in which control signals are output at least to a steering device of the motor vehicle (1) by means of the driver assistance device and hereby a steering angle of the motor vehicle (1) is autonomously controlled by the driver assistance device, and a manual drive mode, in which the steering angle is manually controlled by a driver by operating a steering wheel (7) of the motor vehicle (1), wherein with the switching the driver assistance device at least in one switching direction from one of the drive modes into the other drive mode, a moving light is generated along a predetermined lighting path (20) in a movement direction (21, 22) associated with the switching direction by means of a lighting device (4).