Vehicle Headlight Signaling for Autonomous Status Communication
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Solution Overview
Problem
As the use of autonomous vehicles increases, there is a need for effective communication between these vehicles and their users to enhance the interaction experience.
Innovation Solution
Utilizing the headlights of autonomous vehicles to communicate information through varying light intensities and patterns, allowing users to understand the vehicle's status, such as awaiting customer interaction or charging status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional communication methods (displays, speakers) are used in autonomous vehicles, then information can be conveyed to users, but the device complexity and cost increase
Solution Approach 1:
The patent applies multi-functionality by enabling vehicle headlights to serve dual purposes: their primary function of illuminating the road and a secondary function of communicating vehicle status information to users. The control system modulates the headlights' intensity and patterns to convey different states such as charging status, arrival notifications, and interaction prompts, eliminating the need for separate communication devices
Solution Approach 2:
The system uses the vehicle's existing lighting infrastructure (headlights) to provide communication functionality without requiring additional dedicated components. The headlights serve themselves by being controlled through the existing vehicle control network, where the control system directly manages the lighting elements to convey information, reducing overall system complexity
2Ease of operation
If additional communication devices (displays, speakers) are installed in autonomous vehicles, then user interaction is enabled, but the cost of the vehicle increases
Solution Approach 1:
The patent repurposes existing vehicle components (headlights) to perform communication functions, allowing the vehicle to interact with users through visual signals without installing expensive additional hardware. The headlights convey information such as arrival notifications and charging status, providing user interaction capability while avoiding extra costs
3Ease of operation
If visual cues are provided through existing vehicle components (headlights), then user interaction is enhanced, but the illumination function may be compromised
Solution Approach 1:
The patent uses periodic modulation of headlight intensity to convey information while maintaining adequate illumination. The control system varies the light intensity in patterns (such as pulsing or dimming) to communicate vehicle status and user interaction states, but ensures that the overall illumination level remains sufficient for safe operation by adjusting the modulation depth and frequency appropriately
Data Source
AI summary
According to one aspect, headlights of a vehicle are used to communicate information that may be understood by a user or other person in the vicinity of the vehicle. A method includes operating a vehicle and determining a status of the vehicle. The vehicle has a park gear arranged to be engaged to cause the vehicle to be in a parked state, and the vehicle includes a first optical assembly that has a first optical arrangement and a first optical controller. The method also includes causing the first optical arrangement to visually communicate a first indication, the first indication being arranged to indicate the status of the vehicle.