Vehicle Light Edge Detection Control for Slim Taillight Animation
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Solution Overview
Problem
Automotive turn signal lighting systems with personalized effects face challenges in meeting regulatory standards due to the need for additional signal lines to control fade-out animations, which is not feasible in slim designs like taillights, and existing systems fail to comply with various international homologation regulations.
Innovation Solution
A method and circuit using a microcontroller to generate control signals based on both rising and falling edges of an input signal, activating an animation sequence like fade-out in vehicle lights, such as LEDs, without requiring additional signal lines, ensuring compliance with different regulatory standards by adjusting the 'ON' time and system timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional signal lines are added to control fade-out animation sequences, then personalized lighting effects are achieved, but device complexity and wiring system complexity increase
Solution Approach 1:
The patent makes the existing turn signal input port multi-functional by enabling it to control both the basic turn signal function and the fade-out animation sequence through edge detection techniques. The rising edge activates the turn signal while the falling edge triggers the animation, eliminating the need for separate control lines and achieving personalized lighting effects without increasing wiring complexity.
Solution Approach 2:
The system uses the existing input signal's own edges (rising and falling edges) to trigger different functions. The controller detects these edges and automatically activates the appropriate sequences without requiring external control signals, allowing the system to serve itself and eliminate the need for additional signal lines.
2Adaptability or versatility
If additional signal lines are used for animation control, then personalized lighting effects are achieved, but the solution becomes infeasible for slim designs like taillights
Solution Approach 1:
The existing single input port is made multi-functional to control both basic turn signal operation and animated fade-out sequences. By detecting rising and falling edges of the same input signal, the system achieves personalized lighting effects without requiring additional signal lines, making it feasible for slim designs like taillights where space for additional wiring is limited.
3Device complexity
If existing systems use single-edge triggering, then wiring complexity is reduced, but compliance with international homologation regulations fails
Solution Approach 1:
The patent implements periodic action by using both rising and falling edges of the input signal to trigger different functions. The rising edge activates the turn signal and the falling edge triggers the fade-out animation sequence, creating a periodic control pattern that ensures compliance with international homologation regulations while maintaining simple wiring architecture.
Solution Approach 2:
The system uses feedback from the input signal's own edges to control the lighting sequences. By monitoring both rising and falling edges of the same input signal, the controller can activate appropriate sequences that meet regulatory requirements without adding wiring complexity, thus resolving the contradiction between simplicity and compliance.
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 dynamic and personalized vehicle lighting that meets regulatory standards without additional hardware, enhancing customer satisfaction and ensuring safety critical applications with robustness and diagnostic ability.
Implementation Method 1
generating a control signal to activate the vehicle light based on both a rising and falling edge of the input signal in which the control signal activates an animation sequence when a falling edge is detected
Implementation Method 2
generating a control signal to activate the vehicle light based on both a rising and falling edge of the input signal
Data Source
AI summary
A vehicle illumination system and method for controlling a vehicle light. The method includes receiving an input signal at a controller port; generating a control signal to activate the vehicle light based on both a rising and falling edge of the input signal in which the control signal activates an animation sequence when a falling edge is detected.