Road-Surface Projection Control for Vehicle Glare Suppression
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Solution Overview
Problem
Existing vehicle systems for road-surface rendering face challenges in ensuring that the rendered images are visually recognizable by the driver, especially when the road surface reflects light intensely, leading to reduced visibility and potential glare for oncoming vehicles and pedestrians.
Innovation Solution
The vehicle is equipped with a light projection member, a control unit, and a detection device. The control unit controls the light projection for road-surface rendering and determines insufficient reflection based on detection by the detection device, suppressing the light projection when necessary to maintain visibility and prevent glare.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If light projection for road-surface rendering is performed toward the road surface ahead of the vehicle, then the driver can receive travel-related information via the road surface, but the road surface may reflect light intensely causing reduced visibility and glare for oncoming vehicles and pedestrians
Solution Approach 1:
The detection device detects the road surface and reflection characteristics, providing feedback to the control unit. The control unit adjusts or suppresses light projection based on this feedback to prevent excessive glare while maintaining visibility for the driver.
Solution Approach 2:
The control unit changes projection parameters (intensity, direction, or suppression) based on detected road surface conditions. When intense reflection is detected, the system adjusts parameters to reduce glare while preserving necessary visibility for the driver.
2Illumination intensity
If light projection intensity is increased to improve visibility of rendered images, then the driver can better see travel information, but the glare for oncoming vehicles and pedestrians increases
Solution Approach 1:
The system applies different light projection qualities to different road surface areas. By detecting reflection characteristics locally, the control unit can maintain high brightness in areas that don't cause glare while suppressing projection in areas that would create excessive glare for oncoming vehicles and pedestrians.
Solution Approach 2:
The detection device provides real-time feedback on road surface reflection characteristics, enabling the control unit to dynamically adjust projection intensity to achieve optimal brightness without excessive glare.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances the visibility of road-surface rendered images for the driver while preventing excessive glare for oncoming vehicles and pedestrians, thereby improving the overall effectiveness of the road-surface rendering function.
Implementation Method 1
the vehicle can provide, via the road surface, travel-related information about the vehicle to the driver who drives the vehicle
Data Source
AI summary
A vehicle having a road-surface rendering function includes a light projection member, a control unit, and a detection device. The light projection member is configured to perform light projection for road-surface rendering at least toward a road surface ahead of the vehicle. The control unit is configured to control the light projection for the road-surface rendering by the light projection member. The detection device is configured to perform detection of the road surface onto which the light projection member performs the light projection for the road-surface rendering. The control unit is configured to perform control to suppress the light projection for the road-surface rendering by at least determining insufficient reflection in the road-surface rendering in the vehicle based on the detection of the road surface by the detection device.