Automated Driving Indicator Lamp Lighting States
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Solution Overview
Problem
Automated driving enabled vehicles face limitations in safety due to unpredictable movements during automated parking, making it difficult for surrounding vehicles and pedestrians to anticipate their actions, especially in parking lots where irregular movements are common.
Innovation Solution
Incorporating an automated driving indicator lamp that switches between different lighting states to indicate automated driving mode, both in normal movement and automatic parking modes, enhancing visibility and awareness among external observers, and utilizing a control system that manages travel states between automated and manual driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If automated driving is implemented without external indication, then automation level is improved, but safety is worsened due to unpredictable movements
Solution Approach 1:
The patent applies color changes by using an indicator lamp that emits different colored lights (blue for normal automated driving, yellow for automatic parking mode) to communicate the vehicle's operational state to external observers. This visual signaling system resolves the safety concern by making the automated vehicle's intentions predictable while preserving full automation capability.
Solution Approach 2:
The indicator lamp serves as an intermediary between the automated driving system and external observers (pedestrians, other drivers). It translates internal system states into externally perceptible signals, enabling communication without requiring human intervention in the driving process.
2Device complexity
If a single indicator lamp state is used for all automated driving modes, then device complexity is reduced, but information transmission is worsened
Solution Approach 1:
The indicator system employs dynamics by changing the lamp's emission characteristics (color, blinking pattern) based on the operational mode. In normal automated driving, a steady blue light indicates the state, while in automatic parking mode, a yellow blinking light provides distinct visual information, allowing mode differentiation without adding physical components.
Solution Approach 2:
The patent changes parameters of the indicator lamp (wavelength/color, temporal pattern) to encode different operational modes. The blue/yellow color distinction and steady/blinking patterns provide multiple degrees of freedom for information transmission using a single lamp, avoiding system complexity while preventing information loss.
3Extent of automation
If automated parking is implemented without external notification, then automation level is improved, but safety is worsened due to irregular movements in parking lots
Solution Approach 1:
The system performs preliminary action by activating a distinctive yellow blinking indicator signal before and during automatic parking maneuvers. This early warning allows pedestrians and other road users to anticipate irregular movements before they occur, maintaining automation while improving safety in parking lot environments.
Data Source
AI summary
An automated driving enabled vehicle includes a travel controller, an automated driving indicator lamp, and a lamp controller. The travel controller controls the travel of the vehicle by automated driving in a normal movement mode and in an automatic parking mode. The normal movement mode includes allowing the vehicle to travel, and the automatic parking mode includes parking the vehicle by the automated driving in a parking lot. The lamp controller controls a lighting state of the automated driving indicator lamp during the execution of the automated driving to a first lighting state in the normal movement mode, and to a second lighting state different from the first lighting state in the automatic parking mode.