Vehicle Light Assembly With Dual Drivers for Combined Beam Functions
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Solution Overview
Problem
Existing vehicle lighting systems cannot simultaneously activate multiple lighting functions due to limitations in DC/DC drivers, restricting flexibility and safety, particularly in scenarios like overtaking or night driving.
Innovation Solution
A light assembly with two separate drivers and switching units allows for parallel connection, enabling flexible combinations of lighting functions by independently controlling different series of lighting units, including high and low beams, daytime running lights, and position lighting, with enhanced security features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single DC/DC driver is used to control multiple lighting functions, then device complexity is reduced, but lighting function flexibility deteriorates
Solution Approach 1:
The patent divides the lighting control system into multiple independent drivers, where each driver controls specific lighting functions. This segmentation allows different lighting functions to be controlled independently, enabling flexible combinations such as simultaneous activation of low beam and daytime running lights, which cannot be achieved with a single driver architecture.
2Ease of manufacture
If a single driver controls all lighting functions, then manufacturing cost is reduced, but functional reliability deteriorates
Solution Approach 1:
By segmenting the control into multiple drivers, the system achieves functional redundancy and independence. If one driver fails, other drivers can continue to control their respective lighting functions, maintaining partial system operation and improving overall reliability.
3Adaptability or versatility
If multiple drivers are used to enable flexible lighting combinations, then lighting function flexibility is improved, but device complexity increases
Solution Approach 1:
The patent employs drivers that can control multiple lighting functions through selective activation. Each driver is designed to handle various lighting tasks, allowing flexible combinations of lighting functions without requiring a dedicated driver for each function, thus balancing flexibility with controlled complexity.
4Use of energy by moving object
If a single driver is used, then power consumption is optimized, but lighting security deteriorates
Solution Approach 1:
The segmented driver architecture allows independent control and monitoring of different lighting functions. This independence enhances lighting security by ensuring that critical lighting functions can be maintained even if one driver experiences issues, while power consumption is managed through selective activation of required lighting functions.
Data Source
AI summary
A light assembly includes a power source and three series of lighting units dedicated to respective lighting functions. The light assembly includes a first driver and a second driver, connected in parallel to the power source. The first driver is arranged for applying a first power output to the first and third series of lighting units connected in series, based on a source power generated by the power source and the second driver is arranged for applying a second power output to the second series of lighting units, based on the source power.