Vehicle State Display System for Autonomous Interaction
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Solution Overview
Problem
Conventional vehicle state indication systems lack the necessary 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 controller, detection system, light indication system, display, and sound generator, which uses sensors to detect external objects and communicate the vehicle's state through color-coded lighting and text displays, dynamically adjusting modes to indicate advancing, yielding, stopping, or waiting states, and incorporating vehicle-to-vehicle communication to enhance interaction flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional indication systems are used, then the system is simple, but transparency and predictability around vehicles are insufficient
Solution Approach 1:
The indication system is divided into multiple independent light sources positioned at different locations on the vehicle (front, rear, sides). Each light source can be independently controlled to display different colors and patterns, enabling comprehensive state communication while maintaining modular system architecture that manages complexity.
Solution Approach 2:
The light sources serve multiple functions: they indicate vehicle state (moving, stopping, turning), communicate intent to different external agents (pedestrians, remote vehicles), and adapt to various interaction scenarios. This multi-functionality increases transparency without proportionally increasing system complexity.
2Adaptability or versatility
If conventional indication systems are used, then the system is easy to operate, but adaptability to different scenarios is limited
Solution Approach 1:
The indication system dynamically transitions between different operational modes (moving mode, stopping mode, turning mode) based on real-time vehicle state and detected external agents. The controller automatically adjusts light patterns and colors according to the current scenario, providing high adaptability while maintaining ease of operation through automated control.
Solution Approach 2:
The system incorporates detection systems that sense external agents (pedestrians, vehicles) and feed this information back to the controller. The controller uses this feedback to automatically select appropriate indication modes, enabling the system to adapt to different scenarios without requiring manual intervention, thus maintaining operational simplicity.
3Loss of information
If conventional indication systems are used, then the system has limited communication capability, but the system remains simple
Solution Approach 1:
The system uses different colors (red, yellow, green) to encode different vehicle states and intentions. Red indicates stopping or yielding, yellow indicates caution or intermediate states, and green indicates safe passage or continuing motion. This color-coding system efficiently communicates complex information states without requiring complex communication protocols or additional hardware.
Data Source
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AI summary
A vehicle state indication system (12) includes a detection system (20) and a text display (18). The detection system (20) is configured to sense an external moving object. The text display (18) is disposed on a vehicle (10) 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.