Headlight Cowl Brace Structure for Rigid Vehicle Lower Covers
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Solution Overview
Problem
In existing full cowl vehicle models, the lower cover lacks sufficient rigidity due to its thin design, leading to a risk of hanging and contact with other components.
Innovation Solution
A vehicle front structure that includes a front cowl, a cowl brace for supporting the inner side of the front cowl from the rear, and a lower cover that covers the opening of the front cowl. The lower cover is mounted to both the lower edge of the front cowl and the lower portion of the cowl brace, enhancing its rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the lower cover is made thinner to achieve weight reduction, then weight is reduced, but the rigidity of the lower cover becomes low
Solution Approach 1:
The lower cover is divided into a front cover portion and a rear cover portion, with each portion having different thickness specifications. The front cover portion has a first thickness while the rear cover portion has a second thickness that is different from the first, allowing optimized weight distribution and rigidity in different regions.
Solution Approach 2:
Different portions of the lower cover have different local properties (thickness). The front cover portion and rear cover portion are designed with different thicknesses to provide appropriate rigidity in each location while minimizing overall weight. This local differentiation resolves the contradiction between weight reduction and rigidity maintenance.
2Weight of moving object
If the lower cover is made thinner for weight reduction, then weight is reduced, but the lower cover may hang down due to its own weight
Solution Approach 1:
The lower cover is segmented into front and rear portions with different thicknesses. The rear cover portion, which is more prone to hanging due to gravity, is designed with appropriate thickness to maintain positional stability while the overall cover remains lightweight.
Solution Approach 2:
The local thickness quality is optimized to prevent hanging. The rear cover portion has different thickness characteristics compared to the front portion, providing sufficient structural support in the rear area to counteract gravitational effects and maintain stable positioning.
3Weight of moving object
If the lower cover is made thinner to reduce weight, then weight is reduced, but the lower cover may contact other components
Solution Approach 1:
The lower cover is divided into front and rear portions with differentiated thickness. This segmentation allows the cover to maintain appropriate clearance from other components while minimizing weight, as each portion can be optimized for its specific functional requirements.
Solution Approach 2:
Different local regions of the lower cover have different thickness properties to ensure reliable separation from other components. The thickness distribution is designed to prevent contact in critical areas while maintaining overall weight efficiency.
Data Source
AI summary
A vehicle front structure for a straddle-type vehicle is provided. The straddle-type vehicle includes a headlight installed in a vehicle front. The vehicle front structure includes: a front cowl configured to cover a periphery of the headlight and having a lower surface with an opening; a cowl brace configured to support an inner side of the front cowl from a vehicle rear side; and a lower cover configured to cover the opening of the front cowl below the headlight. A front part of the lower cover is mounted to a lower edge of the front cowl, and a rear part of the lower cover is mounted to a lower portion of the cowl brace.