Vehicle Lamp Sequential Lighting Mode Control
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Solution Overview
Problem
Existing vehicle turn signal lamps require drivers and pedestrians to recognize both the flickering operation and position of the lamp to determine the vehicle's traveling direction, making it difficult to intuitively understand the direction, especially under low light conditions and when malfunctions occur.
Innovation Solution
A vehicle lamp system with a light source unit, operation state detection unit, and control unit that operates in either a sequential or simultaneous lighting mode based on detected operation states, dispersing light along the vehicle's direction to enhance visibility and adapt lighting in case of failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the turn signal lamp simply flickers, then the lamp structure is simple, but it is difficult to intuitively recognize the traveling direction of the vehicle
Solution Approach 1:
The lamp is divided into multiple light source groups arranged in specific patterns (e.g., left-side groups and right-side groups). Each group can be controlled independently to create sequential lighting effects that clearly indicate the traveling direction, transforming a simple flicker into an informative directional signal without excessive complexity.
Solution Approach 2:
Different regions of the lamp are assigned different functions: light source groups on one side are activated for left turns, while groups on the other side are activated for right turns. This spatial differentiation of lighting properties enables intuitive direction recognition while maintaining relatively simple overall structure.
2Illumination intensity
If all light source groups are operated simultaneously, then the visibility is high, but the traveling direction cannot be distinguished
Solution Approach 1:
The light source groups are segmented into functionally distinct sets (e.g., left-turn groups and right-turn groups). By activating only the relevant segment based on the intended direction, the system maintains high visibility through focused illumination while preserving directional information through selective activation patterns.
Solution Approach 2:
The lighting mode dynamically changes based on the detected operation state. When failure is detected, the control unit switches from a first lighting mode (which may provide directional information) to a second lighting mode (which prioritizes visibility). This dynamic adaptation resolves the contradiction by adjusting the balance between visibility and directional information according to actual conditions.
3Device complexity
If the lamp operates in a single lighting mode, then the control is simple, but it cannot adapt to failures effectively
Solution Approach 1:
The control unit receives feedback about the operation state of each light source group and automatically adjusts the lighting mode accordingly. This feedback mechanism enables the system to detect failures and switch to an appropriate backup mode, improving reliability without requiring complex manual intervention or overly complicated control logic.
Solution Approach 2:
The same light source groups serve multiple functions: they can operate in a first lighting mode for normal directional indication and in a second lighting mode for failure compensation. This multi-functionality allows the system to adapt to different conditions using the same hardware, improving reliability while keeping the control system relatively simple.
Data Source
AI summary
The present disclosure provides a lamp for a vehicle and a method of controlling the same. The vehicle lamp intuitively informs a traveling direction of the vehicle and minimizes deterioration of visibility when a failure occurs and a method of controlling the same. A lamp for a vehicle includes a light source unit having a plurality of light source groups and an operation state detection unit configured to detect an operation state of at least one light source included in each of the plurality of light source groups. A lighting mode determination unit is configured to determine a lighting mode of the light source unit based on the detected operation state. A control unit is configured to operate the light source unit in any one of a first lighting mode and a second lighting mode based on the determined lighting mode.