Front Pillar Substructure Bent Panel Load Distribution
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Solution Overview
Problem
Existing front pillar substructures deform excessively during small overlap collisions, leading to inadequate reduction in vehicle compartment deformation due to concentrated load transmission.
Innovation Solution
A front pillar substructure design featuring a bent upper panel and a stronger lower panel, with the lower panel overlapping the rocker, distributes load effectively and reduces deformation by transmitting it to the rocker, while the upper panel is not joined to the rocker to minimize bending loads on the rocker.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a bent section is added to the upper panel, then the strength against imposed load increases reducing front pillar deformation, but the structural complexity increases
Solution Approach 1:
A bent section is introduced to the upper panel, creating a curved geometry that enhances structural strength against imposed loads. This curvature provides better load distribution and resistance to deformation while maintaining integration with the overall panel structure.
Solution Approach 2:
The bent section of the upper panel is merged with the lower panel structure, forming an integrated assembly where the bent upper panel and the straight lower panel work together as a unified load-bearing structure, reducing the need for separate reinforcement components.
Data Source
AI summary
A front pillar substructure that enables reduction in deformation of a front pillar. One embodiment of the present disclosure provides a front pillar substructure including a front pillar, and a rocker being joined to the front pillar. The front pillar includes an inner panel located inside with respect to the rocker, and an outer panel arranged so as to interpose the rocker between the inner panel and the outer panel. The outer panel includes an upper panel, and a lower panel overlapped with and joined to the upper panel, the lower panel extending downward with respect to the upper panel. The upper panel or the lower panel includes a bent section bending in the width direction when viewed from the front-rear direction, the bent section being located inside with respect to a joint region where the upper panel and the lower panel are joined.