Segmented Front Pillar with Transparent Connector for Rigidity and Visibility
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Solution Overview
Problem
Existing front pillar structures in vehicles face challenges in simultaneously ensuring the rigidity of the front pillar and maintaining visibility from the driver's seat, as the width of the front pillar is typically narrower than the front corner member, compromising either rigidity or visibility.
Innovation Solution
A front pillar structure comprising a first skeleton portion and a second skeleton portion with a hollow closed cross-section, separated by a gap, and a transparent connecting member, where the widths of these components are optimized to be equal to or less than the standard pupillary distance to enhance visibility and rigidity, and optionally include additional features like side seals and transparent plates to maintain visibility and support loads during rollover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the front pillar is thickened to improve rigidity, then the rigidity of the front pillar is improved, but the visibility of the outside of the vehicle from the driver's seat deteriorates
Solution Approach 1:
The front pillar is divided into two separate skeleton portions (first skeleton portion and second skeleton portion) that are positioned apart from each other. This segmentation allows each portion to contribute to rigidity while the gap between them maintains visibility, resolving the contradiction between structural strength and visual accessibility.
Solution Approach 2:
The front pillar structure combines multiple materials: hollow closed-section skeleton portions for rigidity, and transparent materials for the connecting member and gap region. This composite approach enables simultaneous achievement of structural strength and optical transparency for visibility.
2Object-affected harmful factors
If the width of the front pillar is reduced to improve visibility, then the visibility of the outside of the vehicle is improved, but the rigidity of the front pillar deteriorates
Solution Approach 1:
By segmenting the front pillar into two separate skeleton portions positioned apart, the effective width occupied by the pillar structure is reduced, improving visibility. Meanwhile, each segment maintains hollow closed-section geometry that provides high rigidity relative to its size.
Solution Approach 2:
The invention transitions from a single solid pillar structure to a multi-dimensional configuration with two separate skeleton portions connected by a transparent member. This dimensional change allows the structure to span across space while maintaining rigidity through the hollow closed sections and preserving visibility through the gap and transparent connecting member.
3Strength
If a single closed section structure is used, then the rigidity is improved, but the visibility and complexity are worsened
Solution Approach 1:
The structure is segmented into two separate skeleton portions with a transparent connecting member, replacing a single complex closed section. This segmentation maintains rigidity through the hollow closed sections while simplifying the overall structure and improving visibility through the transparent connection.
Data Source
AI summary
A front pillar structure includes a first skeleton portion, a second skeleton portion extending along the first skeleton portion with a gap therebetween, and a connecting member. A cross-section of the first skeleton portion is a hollow closed cross-section and a width of the first skeleton portion in a horizontal direction orthogonal to a gaze direction of a driver seated in a driver's seat is equal to or less than a standard pupillary distance. A cross-section of the second skeleton portion is a hollow closed cross-section and a width of the second skeleton portion in the horizontal direction orthogonal to the gaze direction is equal to or less than the standard pupillary distance. The connecting member is transparent and is disposed between the first skeleton portion and the second skeleton portion.