Vehicle Floor Structure With Joggle Joint for Body Versatility
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Solution Overview
Problem
Existing vehicle floor structures lack versatility, leading to increased development and manufacturing costs due to the need for special designs to adapt to different vehicle bodies.
Innovation Solution
A floor structure comprising side sills, a floor panel, and a floor cross member with a joggle section that allows for adjustable length adjustments and joint formations, enabling adaptation to various vehicle bodies without requiring special joint structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a special floor structure is designed to match each vehicle body structure, then the adaptability to different vehicle bodies is improved, but the device complexity and manufacturing costs increase
Solution Approach 1:
The floor panel is designed with a universal flange section that can be adapted to different vehicle body structures through selective cutting and assembly, allowing one floor panel design to serve multiple vehicle types without requiring completely different structures for each application
2Adaptability or versatility
If a special floor structure is designed to match each vehicle body structure, then the adaptability to different vehicle bodies is improved, but the manufacturing costs increase
Solution Approach 1:
The floor panel is segmented into modular components including the panel section and the flange section, allowing selective cutting and assembly to match different vehicle body requirements while using the same base design, thereby reducing manufacturing costs through standardized production
Solution Approach 2:
A universal floor panel design with standardized flange section enables adaptation to multiple vehicle types through simple cutting and assembly variations, eliminating the need for completely different manufacturing processes for each vehicle model
3Strength
If the floor cross member is joined using conventional methods, then the manufacturing simplicity is maintained, but the joint strength between floor cross member and vehicle body is insufficient
Solution Approach 1:
The floor cross member is nested within the sandwich structure formed by the side sill and flange section, with the flange section overlapping both components to create a layered composite joint that enhances strength through structural integration
Solution Approach 2:
The joint structure combines multiple materials and layers including the floor cross member, side sill, and flange section with overlapping configurations, creating a composite joint system that leverages the strengths of different materials and structural arrangements to achieve superior joint strength
Data Source
AI summary
A floor structure for a vehicle includes: side sills, extending along a vehicle front-rear direction on outer sides in a vehicle width direction of the vehicle; a floor panel, disposed on inner sides of the side sills in the vehicle width direction, and including a panel section disposed below a cabin and a flange section joined to the side sill; and a floor cross member, disposed at a rear end of the floor panel in the vehicle front-rear direction. The panel section includes: a front panel section; and a rear panel section. The flange section is formed with a joggle section, and a rear end of the joggle section corresponds to the front panel section in the vehicle width direction. The floor cross member is sandwiched and joined by the side sill and the flange section at the joggle section and a first joint section is formed.