Vehicle Cabin Brightness Control for Sudden Illuminance Changes
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Solution Overview
Problem
Conventional techniques for adjusting vehicle interior brightness are limited to tunnel environments and fail to address sudden changes in illuminance outside these contexts, leading to driver discomfort due to dazzling or dimness.
Innovation Solution
A system comprising a first vehicle, a second vehicle, and a server that collects and processes illuminance data to identify sudden-change points, allowing the second vehicle to adjust its interior brightness or notify the driver before encountering such changes, using information about the traveling environment, including location, date/time, and weather.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional techniques are used to adjust vehicle interior brightness, then the system is simple and limited to tunnel environments, but it cannot address sudden illuminance changes in other contexts leading to driver discomfort
Solution Approach 1:
The patent applies universality by enabling the brightness adjustment system to function across multiple environments (tunnels, bridges, overpasses, and other sudden illuminance change scenarios) rather than being limited to tunnels only. The server collects illuminance data from various locations and provides comprehensive guidance for all sudden-change points, making the system universally applicable to diverse driving conditions.
Solution Approach 2:
The patent introduces a server as an intermediary between illuminance data collection and vehicle brightness control. The server aggregates illuminance information from multiple vehicles, identifies sudden-change points, and provides guidance to vehicles approaching these points. This intermediary enables complex environmental adaptation without requiring complex onboard systems in each vehicle.
2Reliability
If the system collects and processes illuminance data from multiple vehicles to identify sudden-change points, then driver comfort is improved by anticipating brightness changes, but information processing requirements and system complexity increase
Solution Approach 1:
The patent merges illuminance data collection from multiple vehicles into a centralized server system. By combining data from numerous vehicles traveling in the same direction, the server creates a comprehensive picture of illuminance conditions along the route. This merging enables more reliable identification of sudden-change points while distributing the processing burden to the server rather than requiring complex processing in each individual vehicle.
Solution Approach 2:
The system implements feedback by continuously collecting illuminance data from vehicles, processing this information to identify sudden-change points, and providing guidance back to vehicles approaching these points. This closed-loop feedback mechanism enables the system to learn from actual illuminance conditions and improve the accuracy of brightness adjustment recommendations over time.
Data Source
AI summary
To more appropriately adjust the brightness inside a vehicle. Provided is a system including: a first vehicle configured to output, to a server, information regarding illuminance of light incident on a vehicle by associating with information regarding a traveling environment; a second vehicle configured to output information regarding a traveling environment to the server; and the server including a controller configured to generate, based on the information regarding the illuminance of the light incident on the first vehicle, information regarding a sudden-change point that is a point at which a change amount of the illuminance of the light incident on the first vehicle exceeds a prescribed value, and configured to output, based on the information regarding the traveling environment of the second vehicle acquired from the second vehicle, information regarding the sudden-change point to the second vehicle.