Adaptive Interior Lighting Control for Occupant-Aware Mobility Cabins

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Solution Overview

Problem

Existing interior lighting systems in mobility devices have fixed color temperature and brightness, which limits their usability and restricts user activity based on the occupant's state and environmental conditions.

Innovation Solution

A system that includes a lighting module with adjustable color temperature and illuminance, an environment information collector, an occupant information collector, and a controller that adjusts the lighting based on outside environmental factors and the occupant's state, such as temperature, action mode, and sleepiness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the interior light uses fixed color temperature and brightness, then the device structure is simple, but the usability and adaptability to different occupant states are decreased

Engineering Contradiction:

Improveadaptability to occupant stateVSAvoidlighting control system complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The lighting system transitions from a static fixed-brightness design to a dynamic adjustable system that can change color temperature and illuminance levels based on real-time detection of occupant states (such as wakefulness, relaxation, concentration) and environmental conditions, thereby achieving adaptability without excessive complexity

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system incorporates sensors that automatically detect occupant states and environmental factors, with the controller autonomously adjusting lighting parameters without requiring manual user input, thus improving adaptability while keeping the user interface simple

Inventive Principle:

Principle #25Self-service

2Ease of operation

If the interior light is merely turned on or off, then the device complexity is low, but the user activity and convenience are restricted

Engineering Contradiction:

Improveuser convenienceVSAvoidlighting control complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The system controls not only the on/off state but also dynamically adjusts key lighting parameters including color temperature (ranging from warm to cool) and illuminance levels, providing a spectrum of lighting conditions that enhance user convenience for different activities such as reading, relaxing, or focusing

Inventive Principle:

Principle #35Parameter changes

3Adaptability or versatility

If the interior light provides fixed illumination, then the manufacturing cost is low, but the interior aesthetic property and occupant comfort are limited

Engineering Contradiction:

Improvelighting environment adaptabilityVSAvoidenergy consumption for lighting

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The system adjusts illuminance levels dynamically, providing higher brightness only when needed (e.g., during daytime or when occupant alertness is low) and reducing to lower levels during nighttime or when occupant is relaxed, thereby achieving lighting adaptability while managing energy consumption efficiently

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS12296747B2System for controlling interior lighting of mobility device

Publication Date: 2025.05.13 HYUNDAI MOTOR CO LTD

AI summary

A system for controlling interior lighting of a mobility device may change a lighting environment inside a mobility device based on outside environmental factors and the state of an occupant, thereby improving an interior aesthetic property, ensuring the occupant's convenience, and enabling safe traveling.