Vehicle State Indication System Using Segmented Light Bands
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Solution Overview
Problem
Conventional vehicle state indication systems lack transparency and predictability, especially for autonomous vehicles, as they fail to effectively communicate the vehicle's state to all interacting agents, including pedestrians and remote vehicles, and do not adapt flexibly based on sensor inputs and interaction history.
Innovation Solution
A vehicle state indication system comprising a detection system and a light indicator that can selectively indicate different vehicle states to external objects, using a controller with sensors and a light indication system capable of displaying multiple colors or modes to convey the vehicle's intent, such as advancing, yielding, or stopping, and a display system to provide text messages, enhancing communication and interaction flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional brake lights and turn signal indicators are used, then basic vehicle state indication is provided, but transparency and predictability around autonomous vehicles are insufficient
Solution Approach 1:
The light indicator is divided into multiple segments including a circumferential light band with multiple light indicators arranged around the vehicle, allowing different sections to indicate different vehicle states or directions, thereby providing more comprehensive and transparent vehicle state information to external observers
Solution Approach 2:
The light indicator utilizes different colors to represent different vehicle states (e.g., green for safe to proceed, yellow for caution, red for stop), enabling external observers to quickly understand vehicle intent and state without complex signaling, thus improving transparency and predictability
2Adaptability or versatility
If fixed indication systems are used, then simple implementation is achieved, but flexibility in interactions based on sensor inputs and vehicle history is lost
Solution Approach 1:
The indication system dynamically adjusts its behavior based on real-time sensor inputs, vehicle state, and interaction history. The controller modifies light patterns, colors, and sequences adaptively rather than using fixed patterns, enabling flexible responses to different driving scenarios while maintaining manageable complexity through rule-based control logic
3Reliability
If comprehensive vehicle state communication to all interacting agents is implemented, then safety is improved, but system complexity increases
Solution Approach 1:
The light indicator system serves multiple functions simultaneously: it indicates vehicle state, communicates intent to pedestrians and other vehicles, provides directional information, and adapts to different interaction scenarios. This multi-functionality allows comprehensive safety communication without requiring separate specialized systems for each function, thereby managing overall system complexity
Data Source
AI summary
A vehicle state indication system includes a detection system and a light indicator. The detection system is configured to sense an external moving object. The light indicator includes a first on mode and second on mode, and being disposed on a vehicle so as to be capable of selectively externally indicating a first state of the vehicle and a second state of the vehicle in a direction of the external moving object detected.