Vehicle Lamp Intensity Control for Direction Indicator Dazzling
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Solution Overview
Problem
Current vehicle lighting systems lack an automatic mechanism to control the intensity of headlamps and brake lamps, leading to potential dazzling of other road users and difficulty in visibility, especially when direction indicators are activated, relying on manual driver intervention which may be delayed or omitted.
Innovation Solution
A light intensity control system comprising a controller that automatically reduces the intensity of headlamps and brake lamps from high beam to dipped beam mode when direction indicators are activated, ensuring adequate illumination without dazzling other road users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If headlamps are operated in high-beam mode to provide intense light, then illumination intensity is improved, but visibility of direction indicators deteriorates due to dazzling effect
Solution Approach 1:
The patent applies dynamics by making the headlamp intensity adjustable and changeable based on operating conditions. The control system dynamically switches between high-beam and dipped-beam modes depending on whether direction indicators are activated, allowing the illumination intensity to adapt rather than remain fixed.
Solution Approach 2:
The patent changes the intensity parameter of the headlamps based on the activation state of direction indicators. When direction indicators are on, the system reduces headlamp intensity from high-beam to dipped-beam mode, thereby adjusting the light distribution parameter to eliminate dazzling while maintaining adequate illumination.
2Ease of operation
If manual intervention is required to switch from high-beam to dipped-beam mode, then driver control flexibility is improved, but response time and reliability deteriorate due to human delay or omission
Solution Approach 1:
The patent implements feedback by having the control system continuously monitor the activation state of direction indicators and automatically adjust headlamp intensity in response. This closed-loop control eliminates the need for manual intervention while ensuring reliable and immediate response to changing lighting conditions.
Solution Approach 2:
The system performs self-service by automatically detecting when direction indicators are activated and autonomously switching the headlamps from high-beam to dipped-beam mode without requiring driver action. This self-regulating mechanism improves both reliability and response time.
3Illumination intensity
If brake lamp intensity is increased to improve visibility, then braking signal visibility is improved, but visibility of direction indicators deteriorates due to combined light intensity
Solution Approach 1:
The patent applies dynamics to brake lamp control by making the intensity adjustable based on the activation state of direction indicators. When direction indicators are on during braking, the system dynamically reduces brake lamp intensity to prevent dazzling while maintaining adequate braking signal visibility.
Solution Approach 2:
The system changes the intensity parameter of brake lamps based on feedback from direction indicator activation. This parameter adjustment ensures that brake lamp visibility is maintained at appropriate levels without creating harmful dazzling effects when combined with activated direction indicators.
Data Source
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AI summary
The invention relates to a method for controlling intensity of at least one headlamp (102) and/or at least one brake lamp (104) of a vehicle (100), characterized by the step of reducing intensity (3) of the at least one headlamp (102) and/or brake lamp (104) when direction indicators (106, 108) are activated.