Vehicle Side Pillar Structure for Protected Outer Panel Joining
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Solution Overview
Problem
Existing vehicle side portion structures face challenges in preventing direct impact loads from being applied to the joining surface between the side wall and outer panel during collisions, leading to increased repair work and potential damage.
Innovation Solution
A vehicle side portion structure with a pillar featuring a side wall, vertical wall, and a joining surface positioned to absorb impact loads away from the joining surface, incorporating ribs and angled portions to disperse and redirect forces, and a closed cross-section design for improved stiffness and sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the joining surface is positioned at the rear side of the wheel house, then the structure can transmit impact load to the rocker, but the impact load may be directly applied to the joining surface between side wall and outer panel
Solution Approach 1:
The patent positions the joining surface at the front side of the wheel house in the vehicle front-rear direction, rather than at the rear side. This dimensional repositioning shifts the joining surface away from the direct impact path while maintaining its structural function. The vertical wall portion extends in the vehicle vertical direction, and the joining surface extends in the vehicle front-rear direction from the distal end of the vertical wall portion, creating a spatial arrangement that prevents direct impact application.
2Ease of manufacture
If the outer panel is joined to the side wall at a conventional position, then the structure is simple, but the seal line visibility is poor and sealing is compromised
Solution Approach 1:
The joining surface is positioned at the front side of the wheel house and extends in the vehicle front-rear direction, which optimizes the visibility of the seal line from the front side. This spatial repositioning allows for better inspection and sealing without complicating the joining structure.
3Object-affected harmful factors
If the joining surface is positioned at the outer side in vehicle width direction, then direct impact application is prevented, but the structure becomes more complex
Solution Approach 1:
The pillar is divided into distinct functional portions: a side wall portion, a vertical wall portion that projects further in the vehicle width direction, and a joining surface that extends in the vehicle front-rear direction from the distal end of the vertical wall portion. This segmentation allows each portion to perform its specific function while maintaining overall structural integrity without excessive complexity.
Solution Approach 2:
The vertical wall portion serves multiple functions: it provides structural support, creates the joining surface for the outer panel, and positions the joining surface away from the direct impact path. This multi-functionality reduces the need for additional separate components.
Data Source
AI summary
A vehicle side portion structure, includes a pillar provided at a rear side of a wheel house in a vehicle framework at a front side of a vehicle, the pillar extending in a vehicle vertical direction and includes: a side wall portion that extends in the vehicle vertical direction; a plurality of ribs that project from the side wall portion toward an outer side in a vehicle width direction; a vertical wall portion that projects from the side wall portion further to an outer side, in the vehicle width direction, than the plurality of ribs, and that extends in the vehicle vertical direction; and a joining surface that extends in a vehicle front-rear direction from a distal end of the vertical wall portion, with an outer panel configuring an outer plate of the pillar being joined to the joining surface.