Two-Part Vehicle Lamp Control for Symmetrical Illumination
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Solution Overview
Problem
Multi-part vehicle lamps with independent parts face issues when one part malfunctions, leading to asymmetrical illumination and deteriorated appearance, especially in animated functions like turn signals or welcome lights.
Innovation Solution
A vehicle lighting assembly with a primary and secondary part, each having its own power connection, optics, and control units, where the primary control unit maintains synchronization and adjusts illumination functions if the secondary part becomes non-functional, ensuring symmetrical operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a multi-part lamp is used with independent mounting parts, then the lamp can maintain illumination function even if one part is damaged, but the appearance and symmetry of the vehicle is deteriorated when a part stops working
Solution Approach 1:
The control unit receives status information from each part of the multi-part lamp and uses this feedback to determine which parts are functional. Based on this feedback, the control unit dynamically adjusts the illumination pattern to maintain symmetry by compensating for damaged parts, thus resolving the contradiction between maintaining illumination reliability and preserving visual symmetry.
Solution Approach 2:
The illumination pattern is made dynamic and adaptable rather than fixed. The control unit can change the illumination behavior of different parts based on their functional status, allowing the system to maintain symmetry under varying conditions. This dynamic adjustment resolves the contradiction by enabling the system to adapt its behavior to maintain both functionality and appearance.
2Illumination intensity
If animated illumination functions are used in multi-part lamps, then the visual effect is enhanced, but the problem of asymmetry becomes more serious when a part is non-functional
Solution Approach 1:
The animated illumination function is made dynamically adjustable. The control unit can modify the animation pattern, speed, or intensity of different parts based on their functional status. When a part is non-functional, the animation is adjusted to maintain visual symmetry, thus resolving the contradiction between providing enhanced visual effects and maintaining symmetry.
Solution Approach 2:
The control unit changes parameters of the animated illumination (such as timing, intensity, or sequence) for different parts based on their functional status. By adjusting these parameters, the system maintains symmetric visual appearance even when parts are damaged, while still providing enhanced visual effects through the animated functions.
3Adaptability or versatility
If sequential switching of individual light sources is used for turn signals, then the animated function is achieved, but the whole lamp appears dark if the part that should be lit is non-functional
Solution Approach 1:
The sequential switching pattern is made dynamic and adaptable. The control unit adjusts the animation sequence based on which parts are functional. When a part is non-functional, the control unit modifies the sequential switching to ensure that the turn signal function remains visible and effective, thus resolving the contradiction between providing animated functions and maintaining illumination reliability.
Solution Approach 2:
The turn signal function is segmented and redistributed across available functional parts. Instead of requiring a specific sequential pattern that may leave the lamp dark, the control unit divides the illumination function across multiple parts that are actually working, ensuring the turn signal remains visible and functional even when some parts are damaged.
Data Source
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Figure 5~6
AI summary
Vehicle lighting assembly and method for its controlling. The assembly comprises two lamps, wherein a first lamp (1) is a two-part vehicle lamp comprising a primary part (3) and a secondary part (4). Each part has its light source and light control unit. The control units are communicatively connected, and the secondary control unit (8) is configured for controlling the secondary light source (7) based on instructions received from the primary control unit (6). The primary control unit (6) is configured to verify whether the secondary part (4) is functional and to communicate information about the secondary part (4) being non-functional to another component of the assembly. The assembly is configured for adjusting illumination function of the second lamp (2) based on the information about the secondary part (4) being non-functional.