Roof-Mounted Vehicle Lighting for Autonomous Status Recognition
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Solution Overview
Problem
In autonomous driving scenarios, pedestrians and other vehicles struggle to recognize the operational status of autonomous vehicles, posing a safety risk due to reduced driver intervention, which existing technologies have not adequately addressed.
Innovation Solution
An autonomous vehicle equipped with a lighting apparatus featuring a roof-mounted lighting unit and sensor unit that varies its lighting status based on the vehicle's driving mode, using different colors and patterns to indicate movement, stop, or mode changes, ensuring visibility and recognition from a distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If autonomous driving technology is implemented with reduced driver intervention, then automation level increases, but pedestrian recognition of vehicle status deteriorates
Solution Approach 1:
The patent applies color changes by using different colored lights (e.g., green, yellow, red) to represent different autonomous driving statuses. The lighting unit displays specific colors to indicate whether the vehicle is in autonomous driving mode, manual driving mode, charging mode, or other states, enabling pedestrians to quickly recognize vehicle status without requiring complex displays or interfaces.
Solution Approach 2:
The patent introduces a lighting unit as an intermediary communication device between the autonomous vehicle system and pedestrians. This lighting unit serves as a mediator that translates internal vehicle status data into externally visible visual signals, bridging the information gap between the automated vehicle system and external observers.
2Extent of automation
If driver intervention is reduced for autonomous driving, then automation improves, but safety recognition by pedestrians deteriorates
Solution Approach 1:
The patent uses color changes to enhance safety recognition by assigning specific colors to different driving modes. For example, green indicates safe autonomous driving status, yellow indicates transition or caution states, and red indicates manual intervention required or hazard conditions. This color-coding system allows pedestrians to instantly assess vehicle status and adjust their behavior accordingly.
Solution Approach 2:
The patent implements periodic action through blinking or flashing light patterns that draw attention to the vehicle's autonomous status. The lighting unit can blink in specific patterns to indicate autonomous mode activation, deactivation, or alert pedestrians to potential hazards, ensuring periodic reinforcement of the status information for enhanced safety recognition.
3Loss of information
If lighting unit displays autonomous driving status, then information communication improves, but device complexity increases
Solution Approach 1:
The patent applies universality by designing a lighting unit that serves multiple functions: it acts as both a decorative element and an information communication device. The same lighting unit can indicate autonomous driving status, manual driving status, charging status, and alert conditions, eliminating the need for separate display devices and reducing overall system complexity.
Solution Approach 2:
The patent merges the lighting unit with the vehicle's existing exterior lighting system or integrates it into the body structure. By combining the status indication function with existing lighting components, the patent avoids adding separate complex display systems, thereby maintaining simplicity while achieving effective information communication.
Data Source
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AI summary
A lighting apparatus (2) of an autonomous vehicle (1) may include a roof (10) formed at the top of the vehicle (1), a lighting unit (20) installed on the roof (10), and configured to display an autonomous driving status of the vehicle (1) to the outside; and a control unit (30) configured to vary a lighting status of the lighting unit (20) according to the autonomous driving status of the vehicle (1).