Vehicle Room Lamp Control via Dynamic Irradiation Angle Adjustment
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Solution Overview
Problem
Current vehicle room lamps do not adaptively adjust their illumination or direction in response to driving conditions, leading to potential driver fatigue and distraction due to light reflection, especially at night when children are present.
Innovation Solution
An apparatus and method that automatically control the room lamp's illumination and direction by using vehicle velocity and ambient environment information to adjust or turn off the lamp, incorporating a room lamp state determining unit, control determining unit, and control unit with turn-off, irradiation angle change, and illumination adjustment capabilities, utilizing GPS or CAN communication for data input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the room lamp is turned on to provide illumination for passengers, then the interior visibility is improved, but the driver may experience eye fatigue and reduced reaction velocity due to light reflection
Solution Approach 1:
The patent applies the dynamics principle by making the room lamp's irradiation angle adjustable rather than fixed. The irradiation angle adjustment unit dynamically changes the lighting direction based on vehicle operating conditions (day/night, driving state), allowing the system to adapt between providing interior illumination and avoiding driver distraction. This dynamic adjustment resolves the contradiction by enabling the lamp to serve both purposes at different times.
Solution Approach 2:
The patent changes the parameter of irradiation angle to resolve the contradiction. By adjusting this parameter, the system can direct light away from the driver's line of sight when needed, while still maintaining interior illumination. The control unit modifies the irradiation angle parameter based on sensor inputs regarding vehicle state and ambient lighting conditions.
2Illumination intensity
If the room lamp housing is designed to direct light toward the driver for high illumination when stopping, then the driver visibility is improved, but the light may interfere with the driver during night driving
Solution Approach 1:
The system dynamically adjusts the irradiation angle based on vehicle operating conditions. During night driving, the control unit modifies the irradiation angle to direct light away from the driver, eliminating distraction. When the vehicle is stationary or during daytime, the lamp can direct light toward the driver for improved visibility, thus dynamically resolving the harmful effect under different conditions.
Solution Approach 2:
The patent implements feedback through sensors that detect vehicle operating conditions (day/night, driving state) and provide this information to the control unit. The control unit uses this feedback to automatically adjust the irradiation angle, ensuring the lamp provides beneficial illumination without causing driver distraction during night driving.
3Ease of operation
If manual control of the room lamp is required for driver convenience, then the user can control lighting according to personal preference, but the driver must continuously monitor and adjust the lamp which may cause distraction
Solution Approach 1:
The system performs self-service by automatically adjusting the irradiation angle based on sensor-detected vehicle conditions without requiring driver intervention. The control unit autonomously determines the optimal lighting configuration, eliminating the need for the driver to manually adjust the lamp and thereby removing this potential source of distraction while maintaining lighting flexibility.
Solution Approach 2:
The automatic control system uses feedback from sensors monitoring vehicle operating conditions to autonomously adjust the room lamp's irradiation angle. This feedback mechanism enables the system to adapt to changing conditions (day/night, driving state) without driver input, providing both safety and convenience.
4Ease of manufacture
If the room lamp provides fixed illumination direction through housing design, then the manufacturing simplicity is maintained, but the lamp cannot adaptively cope with light changes in different driving environments
Solution Approach 1:
The patent introduces dynamic adjustability to the room lamp system through an irradiation angle adjustment unit. This allows the lamp to adapt its lighting direction based on vehicle operating conditions while maintaining a relatively simple housing structure. The dynamic component adds adaptability without significantly complicating the overall manufacturing process.
Solution Approach 2:
The room lamp system achieves multi-functionality by combining a standard housing design with an adjustable irradiation angle mechanism. This allows the same lamp to serve different functions (interior illumination, driver illumination, or directed lighting away from driver) depending on operating conditions, enhancing versatility without requiring multiple different housing designs.
Data Source
AI summary
Disclosed are an apparatus and a method for controlling a room lamp of a vehicle. The present invention relates to collecting information associated with the vehicle and information associated with an ambient environment using a global positioning system (GPS) or a controller area network (CAN) and then controlling the room lamp using at least one of turn-off of the room lamp, change of an irradiation angle of the room lamp, and adjustment of illumination of the room lamp based on the collected information.