Windshield Auxiliary Cover Layout for Wider Driver Field of View
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Solution Overview
Problem
The challenge is to reduce the feeling of pressure given to vehicle occupants and secure their field of view while maintaining a low vehicle height by minimizing the obstruction caused by auxiliary devices on the windshield glass.
Innovation Solution
An auxiliary structure for the vehicle windshield that includes a bracket fixed to the windshield glass, supporting a rear-view mirror and electronic devices, with a funnel-like auxiliary cover that gathers wire harnesses and reduces their width, allowing a wider transmission region for the occupant's view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the total vehicle height is suppressed to be low, then the vehicle height is reduced, but the auxiliary device positioned near the occupant's head gives a feeling of pressure and narrows the field of view
Solution Approach 1:
The patent repositions the auxiliary device from the upper portion of the windshield glass (near the occupant's head) to the lower portion of the windshield glass (near the dashboard). This spatial relocation in the vertical dimension eliminates the feeling of pressure and preserves the occupant's field of view while maintaining the low vehicle height design.
2Reliability
If the auxiliary cover is designed to cover the mirror support structure and electronic devices, then the components are protected, but the harness cover becomes longer in the vehicle width direction reducing the transmission region
Solution Approach 1:
The patent divides the cover structure into two separate functional components: an auxiliary cover that protects the mirror support structure and electronic devices, and a harness cover that routes the wire harnesses. This segmentation allows the harness cover to be positioned below the auxiliary cover, enabling both components to be protected while minimizing the harness cover's extension into the transmission region.
Solution Approach 2:
The patent positions the harness cover in the vertical dimension below the auxiliary cover rather than extending it horizontally. This spatial arrangement in the vertical direction allows the wire harnesses to be routed underneath the auxiliary cover, reducing the harness cover's width-directional extension and preserving the transmission region while maintaining component protection.
Data Source
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AI summary
[Problem] To provide an auxiliary structure for a vehicle windshield capable of reducing a feeling of pressure given to an occupant and securing a field of view of the occupant. [Solution] An auxiliary structure of a vehicle windshield includes: a mirror support structure 20 that supports a rear-view mirror 5; a plurality of electronic devices (a rain sensor 32 and a communication antenna 33) aligned in a vehicle width direction; a plurality of wire harnesses (a sensor wire harness 43 and an antenna wire harness 44) that extend from the electronic devices; an auxiliary cover 60 that covers the mirror support structure 20 and the electronic devices; and a harness cover 70 that accommodates a plurality of wire harnesses. The auxiliary cover 60 is formed in a shape that protrudes in a vehicle rear direction with substantially the same position in the vehicle width direction as the mirror support structure 20 being a vertex, and includes a cover rear wall portion 64 in which a lead-out hole 60a for leading out the wire harness to the harness cover 70 is provided in a vertex portion 641.