Vehicle Light Control Apparatus for Charging State Visibility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Users of eco-friendly vehicles face difficulty in recognizing the charging state of their batteries, as existing systems lack effective indicators for brightness adjustment based on charging state and external illuminance.
Innovation Solution
A light control apparatus that adjusts the brightness of a lighting unit in a vehicle based on battery charging state information and external illuminance, using an interface for communication with an illuminance detector, memory for storing reference illuminance and brightness settings, and a controller to regulate the lighting unit's power, with additional features for user presence and charging mode detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the lighting unit displays charging state information continuously at high brightness, then the visibility and user awareness of charging state is improved, but the power consumption increases
Solution Approach 1:
The lighting unit dynamically adjusts its brightness level based on the charging state of the battery. During active charging, the lighting displays higher brightness to indicate charging status. When charging is complete or not in progress, the lighting reduces brightness or turns off, thereby reducing power consumption while maintaining visibility when needed.
Solution Approach 2:
The lighting unit operates periodically rather than continuously, activating at specific intervals or triggered events (such as when the charging port is accessed or charging status changes). This periodic operation reduces overall power consumption while ensuring the charging state is communicated to users at appropriate moments.
2Illumination intensity
If the lighting unit operates at high brightness in all conditions, then the visibility of charging state is improved, but the light pollution and user discomfort increases in dark environments
Solution Approach 1:
The lighting unit dynamically adjusts its brightness based on ambient light conditions detected by an illuminance sensor. In dark environments, the lighting automatically reduces its intensity to minimize light pollution and user discomfort. In bright environments, the lighting can operate at higher brightness levels to ensure adequate visibility of charging state information.
Solution Approach 2:
The system incorporates feedback from an illuminance sensor that continuously monitors ambient light levels. Based on this feedback, the controller automatically adjusts the lighting output to maintain optimal visibility while avoiding excessive brightness in dark conditions, thereby reducing light pollution and user discomfort.
3Loss of information
If the lighting unit provides detailed charging state information, then the information completeness is improved, but the device complexity increases
Solution Approach 1:
The lighting unit uses different colors or color intensities to represent different charging states (such as charging in progress, charging complete, error states). This visual encoding method communicates multiple pieces of information through a simple color-based interface, avoiding the need for complex displays or multiple indicators, thereby maintaining information completeness while minimizing device complexity.
4Adaptability or versatility
If the lighting unit adjusts brightness based on multiple parameters (illuminance, charging state, user presence), then the adaptability is improved, but the control system complexity increases
Solution Approach 1:
The control system is designed to handle multiple functions through a single integrated controller that processes various inputs (illuminance sensor data, charging state information, user presence detection) and coordinates the lighting output accordingly. This multi-functional approach allows the system to adapt to different conditions without requiring separate control circuits for each function, thereby maintaining adaptability while managing complexity through consolidation.
Data Source
AI summary
A light control apparatus for controlling brightness of a lighting unit indicating a charging state of a battery of a vehicle includes: an interface configured to communicate with an external illuminance detector; a memory configured to store illuminance information corresponding to a first reference illuminance and a second reference illuminance lower than the first reference illuminance and to store brightness information set based on the first reference illuminance and the second reference illuminance; a controller configured to receive the illuminance information via the interface, to set the brightness information based on the first reference illuminance and the second reference illuminance, and to control the brightness of the lighting unit based on the set brightness information; and a driver configured to regulate power of the lighting unit in response to a command of the controller.