Automated Driving Indicator Lamp Control for Lower Power Use
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Solution Overview
Problem
Automated driving enabled vehicles face limitations in safety and power consumption due to the continuous operation of automated driving indicator lamps, which are necessary for visibility but increase energy usage and may cause discomfort with bright colors like turquoise blue, especially in daylight environments.
Innovation Solution
The vehicle is equipped with a travel controller and a lamp controller that switches the automated driving indicator lamp on and off based on the presence of surrounding moving bodies and environmental conditions, optimizing power consumption while maintaining visibility through intelligent lighting control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the automated driving indicator lamp is continuously switched on during automated driving, then the visibility and safety are improved, but the power consumption increases
Solution Approach 1:
The indicator lamp is controlled to be periodically switched on and off based on the presence of surrounding moving bodies. When moving bodies are detected, the lamp is switched on; when no moving bodies are present, the lamp is switched off. This periodic action maintains safety when needed while reducing power consumption during periods without traffic.
2Illumination intensity
If the automated driving indicator lamp is switched on, then the visibility is improved, but the discomfort from bright lighting increases
Solution Approach 1:
The indicator lamp uses periodic switching based on environmental conditions and presence of moving bodies. By only activating the bright lamp when necessary (when moving bodies are detected), the system maintains visibility when needed while minimizing discomfort to occupants during periods when the lamp is off.
Data Source
AI summary
An automated driving enabled vehicle includes a travel controller, an automated driving indicator lamp, and a lamp controller. The automated driving indicator lamp is switched on perceptibly from outside the vehicle on the occasion of automated driving. The lamp controller acquires, during the execution of the automated driving, information regarding a surrounding moving body present around the vehicle. The lamp controller makes a lighting control of the automated driving indicator lamp during the execution of the automated driving, in response to presence of any surrounding moving body around the vehicle executing the automated driving.