Road Surface Rendering Control for Rising Pavement Glare
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Solution Overview
Problem
Existing road surface rendering technologies face issues with intense light reflection towards drivers when projecting patterns onto rising road surfaces, leading to discomfort and potential hazards due to varying reflection characteristics.
Innovation Solution
A vehicle equipped with a projection member, a detection device, and a controller that suppresses light projection when a rising road surface area is detected relative to the vehicle's travel surface, using a camera and lidar for detection and controlling the light projection to prevent intense light reflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If light projection for road surface rendering is performed toward a rising road surface, then the road surface rendering function can provide traveling information to the driver, but intense light reflection occurs toward the driver causing discomfort and potential hazards
Solution Approach 1:
The detection device detects the road surface gradient before light projection occurs. The controller uses this advance information to determine whether the road surface rises and suppresses light projection when necessary, preventing intense light reflection before it happens
Solution Approach 2:
The detection device continuously monitors the road surface gradient and provides feedback to the controller. The controller adjusts the light projection based on this real-time feedback, suppressing projection when the road surface rises and enabling it when the road surface is flat or declining
2Duration of action of stationary object
If light projection is continuously performed for road surface rendering, then traveling information is consistently provided to the driver, but intense light reflection occurs on rising road surfaces creating safety hazards
Solution Approach 1:
The light projection is made dynamic rather than continuous. The controller adjusts the light projection state (on/off) based on real-time road surface gradient detection, enabling continuous information provision on safe road surfaces while preventing hazards on rising surfaces
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 effectively reduces the occurrence of intense light reflection towards the driver, improving road surface rendering by adjusting light projection based on real-time road surface detection, enhancing safety and comfort during travel.
Implementation Method 1
the detection device is configured to perform detection of the road surface where the projection member projects the light for the road surface rendering
Data Source
AI summary
A vehicle with a road surface rendering function includes a projection member, a controller, and a detection device. The projection member is configured to perform light projection for road surface rendering at least toward a road surface ahead of the vehicle. The controller is configured to control the light projection. The detection device is configured to perform detection of the road surface where the projection member projects the light for the road surface rendering. The controller is configured to determine, based on the detection, whether a first road surface area in the road surface for the road surface rendering rises relative to a second road surface area where the vehicle is traveling. The controller is configured to suppress the light projection for the road surface rendering by the projection member based on determining that the first road surface area rises relative to the second road surface area.