Vehicle Resin Window Member for Infrared Sensor Placement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The detection accuracy of sensors mounted on vehicles, particularly those using infrared cameras, is reduced due to the inability of glass to transmit infrared rays effectively, leading to a need for improved methods to prevent interference from window glass.
Innovation Solution
A vehicle resin member with an opening that allows sensors to be positioned outside the window glass, avoiding overlap with the wiper region and ensuring clear transmission of electromagnetic waves, while being attached in a manner that prevents interference from wipers and maintains visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the sensor is disposed on the inner side of the window glass, then the sensor can be mounted inside the vehicle, but the detection accuracy is reduced because glass blocks infrared rays
Solution Approach 1:
The sensor is extracted from the interior space and mounted on the outer surface of the window glass, allowing it to directly receive infrared rays without glass interference while maintaining interior mounting benefits through the resin member integration
2Measurement precision
If the opening is positioned to allow sensor access, then detection accuracy is improved, but the opening may be blocked by wipers
Solution Approach 1:
The opening is repositioned from the lower window region to the upper window region, changing the spatial dimension of sensor placement to an area inaccessible to wiper blades, thereby eliminating the blocking issue while maintaining detection accuracy
3Ease of manufacture
If the resin member is attached to overlap the window member, then mounting is simplified, but it blocks the sensor view and reduces detection accuracy
Solution Approach 1:
The resin member is segmented into distinct functional zones: a sensor housing portion that contains the sensor and opening, and a window attachment portion that bonds to the window. This segmentation allows the opening to be positioned in the upper region away from the window overlap, preventing blockage while maintaining structural integration
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 configuration enhances sensor detection accuracy by preventing blockage from wipers and ensuring clear transmission of electromagnetic waves, thereby improving sensor performance without compromising aesthetics or functionality.
Implementation Method 1
a transmission member exposed on the first surface through the opening... the detection accuracy of the sensor may possibly be reduced because glass is less likely to transmit infrared rays
Data Source
AI summary
To suppress reduction in detection accuracy of a sensor. A vehicle resin member (20) includes: a resin member (30) having an opening (32) that passes from a first surface (30A) on the outside of a vehicle to a second surface (30B) on the inside of the vehicle; a transmission member (42) exposed on the first surface (30A) through the opening (32); and a sensor (44) provided in a first direction from the first surface (30A) toward the second surface (30B) with respect to the transmission member (42). The vehicle resin member (20) is attached to a window member of the vehicle such that the opening (32) does not overlap the window member and is positioned out of reach of a wiper provided to the window member.