Vehicle Interior Light Modules for Real-Time Ambient Lighting Control

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Solution Overview

Problem

Existing motor vehicle interior lighting systems lack the ability to dynamically adjust light scenes and effects in real-time based on ambient conditions and variable data sources, providing only static and uniform lighting experiences.

Innovation Solution

A motor vehicle with a central light control unit and distributed interior light modules, each equipped with different-colored LEDs or RGB-LEDs, is connected via a data bus, allowing for real-time control commands generated from runtime-variable input data such as ambient conditions, sensor data, and audio information to create dynamic and interactive lighting effects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a central light control unit with distributed interior light modules is implemented, then the adaptability and versatility of the lighting system is improved, but the device complexity increases

Engineering Contradiction:
Improvelighting adaptabilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The lighting system is divided into multiple independent interior light modules distributed throughout the vehicle interior, each capable of being controlled individually or in groups. This segmentation allows the system to achieve high adaptability by selectively activating different modules based on ambient conditions while managing complexity through modular architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The lighting system transitions from static, pre-defined light scenes to dynamic, real-time adaptation based on runtime-variable input data from ambient conditions and vehicle sensors. The central light control unit continuously adjusts color values and brightness of individual modules or groups based on current environmental context, enabling the lighting to respond dynamically to changing conditions.

Inventive Principle:
Principle #15Dynamics

2Reliability

If real-time dynamic lighting control based on ambient conditions is implemented, then the lighting effectiveness and situation awareness are improved, but the processing requirements and system complexity increase

Engineering Contradiction:
Improvelighting effectivenessVSAvoidcontrol system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The central light control unit receives runtime-variable input data from ambient conditions (light sensors, temperature, humidity) and vehicle data sources (speed, position, audio) to continuously adjust lighting parameters. This feedback mechanism ensures the lighting system adapts reliably to current conditions while the control unit processes and integrates multiple data streams to generate appropriate light scenes.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The interior light modules serve multiple functions: they provide ambient lighting, create visual effects synchronized with audio, display warning signals, and enhance situation awareness. This multi-functionality is achieved through a single integrated control system that processes various input data types and generates appropriate lighting responses for different scenarios.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Illumination intensity

If multiple interior light modules with multiple light sources are distributed throughout the vehicle, then the visual appeal and atmospheric effect are improved, but the energy consumption increases

Engineering Contradiction:
Improvelighting qualityVSAvoidenergy consumption
Core Design Contradiction:
Illumination intensityVSUse of energy by moving object

Solution Approach 1:

Different groups of interior light modules are assigned different color values and brightness levels based on their location and the ambient conditions in different zones of the vehicle. This allows the system to create visually appealing light scenes with varying intensity and color across different areas while consuming less total energy by selectively illuminating only relevant zones rather than uniformly lighting the entire interior.

Inventive Principle:
Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables visually appealing and situationally matched lighting scenes and effects, including warning signals, by dynamically adjusting light colors and brightness based on real-time data, enhancing user experience and safety.

Implementation Method 1

The light sources are in particular different-colored LEDs and/or RGB-LEDs

Methodology Applied
Scientific EffectLight Emitting Diode: Light Emitting Diode

Data Source

PatentUS12447897B2Motor vehicle comprising a plurality of interior light modules
Publication Date: 2025.10.21 BAYERISCHE MOTOREN WERKE AG
  • US12447897B2 patent drawing
  • US12447897B2 patent drawing
  • US12447897B2 patent drawing

AI summary

A motor vehicle includes a central light control unit and a plurality of interior light modules, each of which includes a single light source or a plurality of light sources. The motor vehicle also includes a data bus via which the central light control unit and the interior light modules are coupled to one another. The central light control unit is configured to transmit control commands to the interior light modules in order to trigger motor vehicle interior lighting effects, wherein control information, which is included in the control commands and includes at least one color value and one brightness value for the interior light modules, is created based on runtime-variable input data. The runtime-variable input data is based on current ambient conditions of the motor vehicle and/or variable data sources of the motor vehicle.