Fender Apron Connecting Structure With Integrated Cowl Side Member
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Solution Overview
Problem
Current connecting structures for fender aprons in vehicles are inefficient in dispersing impact loads during collisions due to non-continuous coupling sections, leading to weak coupling forces and high deformation possibilities.
Innovation Solution
A connecting structure that integrates a cowl side member with a 'U' cross-sectional shape coupled with the fender apron and an A-pillar, featuring a bulk head and coupling grooves to enhance load transfer and dispersal, along with an A-pillar upper reinforcement member for increased rigidity, forming a continuous closed section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If respective connection sections are not continuous and units are connected by flange, then coupling force is weak and deformation possibility is high, but manufacturing process is simpler
Solution Approach 1:
The patent merges the door hinge reinforcement unit and cowl side member into a single integrated component. This integration creates continuous connection sections between the fender apron, cowl side member, and A-pillar, eliminating the need for separate flange connections and thereby strengthening the coupling force while reducing the number of parts.
Solution Approach 2:
The integrated component is designed with pre-formed connection sections that continuously engage with the fender apron and A-pillar before collision occurs. This preliminary structural arrangement ensures that impact loads are automatically dispersed through the continuous sections without requiring additional reinforcement or complex connection mechanisms during the collision event.
2Strength
If respective units are connected by flange, then coupling force is weak, but manufacturing process needs to be added
Solution Approach 1:
By combining the door hinge reinforcement unit and cowl side member into one integrated component, the patent eliminates the need for separate flange connection processes. The single component is manufactured as a unified structure that directly connects to the fender apron and A-pillar, simplifying the manufacturing process while achieving stronger coupling.
3Strength
If sections among respective members are continuous, then collision load transferring effect is increased, but device complexity is increased
Solution Approach 1:
The integration of the door hinge reinforcement unit and cowl side member creates continuous sections that directly transfer impact loads from the fender apron through the cowl side member to the A-pillar. This continuous path eliminates weak flange connections and enhances load transfer efficiency without requiring multiple separate reinforcement components.
Data Source
AI summary
A connecting structure for a fender apron may include a fender apron; a cowl side member that has the same cross-sectional shape as a part of the fender apron and is coupled with the fender apron; and an A-pillar of which the inside is coupled with the cowl side member.