Vehicle HID Lamp Power Control for Stationary Energy Savings
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High Intensity Discharge (HID) lamps consume more energy than necessary when a vehicle is stationary, despite providing superior illumination and lower energy consumption compared to standard halogen lighting.
Innovation Solution
A method and system that automatically detect whether a vehicle is stationary or non-stationary using a speed sensor, reducing the power supply to HID lamps from a first power level (approximately 35 watts) to a lower second power level (approximately 27.5 watts) when stationary, and restoring it to the first power level when the vehicle becomes non-stationary, utilizing a controller and ballast circuit to manage the power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the vehicle is stationary and the lamp operates at full power level, then the illumination intensity is sufficient, but the energy consumption is excessive
Solution Approach 1:
The patent applies dynamics by making the power supply level adjustable based on vehicle motion state. The controller dynamically switches between first power level (higher power) and second power level (lower power) according to whether the vehicle is moving or stationary, optimizing energy consumption while maintaining adequate illumination when needed
Solution Approach 2:
The patent changes the power supply parameter from a fixed state to a variable state. By detecting vehicle motion state and automatically adjusting the power level delivered to the lamp, the system transforms the power parameter to adapt to different operating conditions, reducing energy waste during stationary periods
2Use of energy by moving object
If the power supply to the lamp is reduced to lower energy consumption, then the energy efficiency improves, but the illumination intensity decreases
Solution Approach 1:
The system dynamically adjusts power levels based on real-time vehicle motion detection. When the vehicle is stationary, it switches to lower power level for energy savings; when motion is detected, it restores higher power level to ensure sufficient illumination, creating a dynamic balance between energy efficiency and lighting performance
Solution Approach 2:
The patent implements feedback control by using a motion detection device to monitor vehicle state and automatically adjusting power supply accordingly. The controller receives feedback from the motion detection and responds by switching between power levels, creating a closed-loop system that optimizes energy consumption based on actual operational needs
Data Source
AI summary
A system for automatically controlling power supply to a lamp (101) of a vehicle, the system comprising: a detection module (20) to detect whether the vehicle is stationary or non-stationary; a controller (102) to receive a signal (25) having a first value transmitted by the detection module (20) when the vehicle is detected as stationary, and the controller (102) to receive a signal (25) having a second value transmitted by the detection module (20) when the vehicle is detected as non-stationary, wherein if the signal (20) having the first value is received by the controller (102), the controller (102) reduces the power supply to the lamp (101) from a first power level to a lower second power level in order to reduce energy consumption of the lamp (101), and if the signal (25) having the second value is received by the controller (102), the controller (102) restores the power supply to the lamp (101) from the lower second power level to the first power level.