Vehicle State Indication System for Pedestrian Transparency
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Solution Overview
Problem
Conventional vehicle state indication systems lack the ability to effectively communicate the state of a vehicle to all interacting agents, particularly in scenarios involving autonomous vehicles, leading to reduced transparency and predictability, especially when interacting with pedestrians and remote vehicles.
Innovation Solution
A vehicle state indication system comprising a detection system and a text display that senses external moving objects and externally indicates the vehicle's state through a light indication system and display, capable of multiple modes to convey advancing, yielding, stopping, and waiting states, using color changes and text messages, integrated with a sound generator and vehicle location determination system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional indication systems (brake lights, turn signals) are used, then basic vehicle state communication is achieved, but transparency and predictability around autonomous vehicles are insufficient
Solution Approach 1:
The indication system is segmented into multiple independent components: detection system (sensors), light indication system (LEDs arranged in specific patterns), text display (LCD/LED screen), and sound generator (speaker). Each component handles specific aspects of vehicle state communication, allowing comprehensive information transmission while maintaining system reliability through modular architecture.
Solution Approach 2:
The indication system performs multiple functions simultaneously: it detects external objects, displays vehicle state through multiple visual patterns (light arrangements), provides textual information, and generates audible signals. This multi-functionality ensures comprehensive communication of vehicle intent to all external agents, enhancing both transparency and information completeness.
2Loss of information
If multiple indication methods are used to improve communication, then vehicle state transparency increases, but system complexity increases
Solution Approach 1:
The patent merges multiple indication methods (visual lights, text display, sound) into a single integrated indication system controlled by one controller. This unified approach transmits comprehensive vehicle state information through multiple channels simultaneously, reducing information loss while managing system complexity through centralized control architecture.
Solution Approach 2:
The controller serves as an intermediary that receives data from the detection system and coordinates the output of multiple indication components (lights, text display, sound generator). This mediator role ensures seamless integration of multiple indication methods, maintaining clear vehicle state communication while simplifying system management through centralized coordination.
3Adaptability or versatility
If the system adapts to different interaction scenarios, then flexibility in interactions improves, but device complexity increases
Solution Approach 1:
The indication system dynamically adapts its behavior based on real-time detection of external objects and vehicle state. The controller adjusts light patterns, text messages, and sound signals according to the specific interaction scenario (e.g., pedestrian detection, intersection approach, yielding behavior). This dynamic adaptation provides flexibility in interactions while managing complexity through scenario-based control logic.
Data Source
AI summary
A vehicle state indication system includes a detection system and a text display. The detection system is configured to sense an external moving object. The text display is 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 forward direction of the vehicle.