Vehicle Lamp Control Apparatus for Sequential LED Timing
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Solution Overview
Problem
There is a need for a method to precisely control the sequential turn-on of LED channels in vehicle lamps, particularly with the increasing complexity of LED channel configurations and the requirement for intuitive recognition of a vehicle's traveling direction.
Innovation Solution
A vehicle lamp control apparatus that includes a timing generator to detect varying setting voltages and measure delay times, and a lamp control circuit to control the sequential turn-on of LED channels using these delay times, allowing for precise control through external modules and reference voltages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of LED channels is increased to support diversified vehicle lamp designs, then the design versatility is improved, but the control complexity increases
Solution Approach 1:
The patent uses parameter changes by varying the setting voltage levels to control different LED channels sequentially. The timing generator measures different delay times based on voltage thresholds, allowing precise control of multiple LED channels without increasing control circuit complexity. This enables diversified lamp designs while maintaining manageable control complexity through voltage parameter variation.
2Loss of information
If sequential turn-on control is implemented for LED channels, then the directional recognition is improved, but the timing control precision requirement increases
Solution Approach 1:
The patent introduces a timing generator as an intermediary component that automatically measures and generates delay times based on voltage threshold crossings. This intermediary handles the precise timing measurements, reducing the burden on the main control system and ensuring high timing precision for sequential LED channel activation, thereby improving directional recognition.
3Manufacturing precision
If delay times are set individually for each LED channel, then the sequential control precision is improved, but the setting complexity increases
Solution Approach 1:
The timing generator operates autonomously to measure and generate delay times without requiring manual configuration for each LED channel. It automatically detects voltage threshold crossings and produces the appropriate delay signals, enabling precise sequential control while simplifying the setting process. The system essentially configures itself based on the inherent electrical characteristics of the LED channels.
Data Source
AI summary
The present disclosure discloses a vehicle lamp control apparatus. The vehicle lamp control apparatus includes a timing generator configured to detect a setting voltage, which is varied, and measure a time in which the setting voltage reaches levels of a first reference voltage and a second reference voltage to generate a first delay time and a second delay time, and a lamp control circuit configured to control sequential turn-on of light-emitting diode (LED) channels using the first delay time and the second delay time.