Motor Vehicle Interior Lighting Control via Segmented Peripheral Devices
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Solution Overview
Problem
Existing motor vehicle interior lighting systems face challenges in efficiently managing and implementing complex lighting effects without overloading data bus technologies, while allowing for dynamic and user-preference dependent lighting configurations.
Innovation Solution
A motor vehicle system comprising a central lighting control device and multiple peripheral lighting control devices connected via a data bus, where lighting effect identifiers are transmitted from the central device to initiate interior lighting effects, allowing for elaborate and dynamic lighting without excessive data transmission, and enabling easy changes by exchanging light modules and assigning different parameter sets to identifiers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If comprehensive lighting effect parameter sets are transmitted from central control device to peripheral control devices, then complete lighting control is achieved, but data bus load increases excessively
Solution Approach 1:
The system segments the lighting control functionality by separating the central control device from multiple peripheral control devices. Each peripheral device independently controls specific light modules, allowing distributed control without requiring continuous transmission of complete parameter sets across the data bus. This segmentation reduces data transmission volume while maintaining complete lighting control capability.
Solution Approach 2:
Lighting effect parameter sets are pre-stored in the peripheral control devices during system initialization or configuration phase. When a lighting effect is requested, the central control device only needs to transmit a reference identifier, and the peripheral devices retrieve the corresponding pre-stored parameter sets locally. This preliminary action eliminates the need for transmitting large parameter sets in real-time, significantly reducing data bus load.
2Adaptability or versatility
If multiple peripheral lighting control devices are distributed throughout the vehicle, then lighting flexibility and adaptability improve, but system complexity increases
Solution Approach 1:
The peripheral control devices are designed with universal functionality to control different types of light modules (LED strips, point lights, ambient lighting). Each peripheral device can handle multiple lighting functions and configurations, reducing the need for specialized control circuits for each lighting zone. This multi-functionality simplifies the overall system architecture despite the distributed nature of the control devices.
Solution Approach 2:
The central control device acts as an intermediary that coordinates between the user interface and the distributed peripheral control devices. It manages the assignment of lighting effects to specific peripheral devices based on vehicle operating states and user preferences, simplifying the control logic at each peripheral device while maintaining system-wide coordination and flexibility.
3Ease of operation
If lighting effect parameter sets are stored centrally, then system management is simplified, but data transmission requirements increase
Solution Approach 1:
The system performs preliminary action by pre-loading and storing lighting effect parameter sets in the peripheral control devices during system initialization or configuration. This allows the peripheral devices to access parameter sets locally without requiring continuous data bus transmission. The central control device only needs to transmit small reference identifiers, dramatically reducing data transmission load while maintaining centralized management capability.
Solution Approach 2:
The peripheral control devices contain copies of the lighting effect parameter sets locally in their memory. Instead of relying on a single central storage, each peripheral device has a local copy of the parameter sets it needs, enabling independent access and reducing dependency on continuous data bus communication. This copying approach balances centralized management with distributed access efficiency.
Data Source
AI summary
A motor vehicle has a central light control device, a plurality of peripheral light control devices distributed within the vehicle, and a plurality of interior light modules, each of which has a plurality of light sources and is associated with a peripheral light control device.