Vehicle Interior Lighting System with Multi-Stage Control
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Solution Overview
Problem
Current interior lighting systems in automotive vehicles lack sophistication in harmonizing lighting with occupant ingress and egress stages, failing to provide a seamless and aesthetically pleasing experience.
Innovation Solution
An interior lighting system with multiple zones and a controller that illuminates lights in a sequence of stages (welcome, ambient, and farewell) with adjustable intensity and color, synchronized with vehicle entry, operation, and exit modes, allowing occupants to select preferred colors and intensities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single interior lighting system is used throughout the vehicle, then the device complexity is low, but the adaptability to different occupant stages (ingress, egress, operation) is insufficient
Solution Approach 1:
The interior lighting system is divided into multiple independent zones (front zone, rear zone, overhead zone, door zones) that can be controlled separately. Each zone contains multiple lights that can be individually adjusted or grouped, allowing different lighting configurations for different occupant stages without requiring a completely separate system for each function.
Solution Approach 2:
The lighting system incorporates dynamic control capabilities where lights can change intensity, color temperature, and activation status based on detected occupant presence and vehicle state. The controller dynamically adjusts lighting parameters through multiple stages (welcome, ambient, farewell) to adapt to changing conditions while using a single integrated system.
2Illumination intensity
If multiple lights are illuminated at high intensity simultaneously, then the illumination sufficiency is improved, but the energy consumption increases
Solution Approach 1:
The system activates only the necessary portion of lights at any given time based on occupant presence detection. During welcome stage, only zone lights near the opening door are activated. During ambient stage, only occupied zones receive full illumination. This partial activation provides sufficient lighting for current needs while reducing overall energy consumption compared to illuminating all lights simultaneously.
Solution Approach 2:
The lighting system operates in periodic stages (welcome stage upon door opening, ambient stage during vehicle operation, farewell stage upon door closing) rather than maintaining constant high-intensity illumination. This periodic activation pattern ensures sufficient lighting is provided exactly when needed while allowing energy-saving modes during transitions, optimizing the balance between illumination sufficiency and energy consumption.
3Ease of operation
If a simple on/off lighting control is used, then the ease of operation is high, but the aesthetic experience and emotional connection are reduced
Solution Approach 1:
The lighting system automatically detects occupant presence through door sensors and vehicle state signals, then autonomously selects and executes appropriate lighting stages without requiring manual user input. The controller manages complex lighting sequences, intensity adjustments, and color temperature changes automatically, maintaining ease of operation while delivering sophisticated aesthetic experiences through programmed lighting patterns.
Solution Approach 2:
The system controls multiple lighting parameters (intensity, color temperature, activation status) simultaneously through automated stage transitions. During welcome stage, lights transition to warmer color temperatures with higher intensity; during ambient stage, cooler colors and lower intensity are used. These parameter changes create distinct aesthetic atmospheres for different occupant experiences while the system manages all adjustments automatically without user burden.
Data Source
AI summary
An interior lighting system for an automotive vehicle include a first light in a first zone a second light in a second zone, and a controller illuminating the lights in a sequence including a first welcome stage, a second welcome stage, and ambient stage, and a farewell stage. The stages are defined by an operating cycle of the vehicle as determined by conditions such as vehicle entry system status, door open/closed status, and ignition status. The colors and intensities of the lights varies throughout the stages to provide both adequate task illumination and attractive lighting to provide sophisticated vehicle interior illumination that is well harmonized with the various Stages of occupant ingress and egress.