Vehicle Underbody Webbing Devices for Impact Force Distribution
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Solution Overview
Problem
Existing vehicle underbody designs lack adaptability and safety features, particularly in accommodating different vehicle sizes and providing adequate crumple zones around critical components like the battery pack, which can lead to reduced safety and handling performance during impacts.
Innovation Solution
The proposed underbody structure features a hybrid uni-body design with modular components, including a centralized battery pack, adaptable platform dimensions, and webbing devices with crumple zones, providing structural integrity and force load distribution through a network of ribs and members that extend between ribs to form cells, enhancing safety and handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional rigid frame structures are used, then structural strength is maintained, but crumple zones around critical components are reduced
Solution Approach 1:
The frame structure is segmented into rigid sections and flexible webbing sections. The webbing members are divided into multiple ribs and cells that can deform independently during impact, creating crumple zones that protect the battery pack while maintaining overall structural strength through the rigid frame channels.
Solution Approach 2:
Different parts of the frame have different structural properties. The end rails and cross members provide rigid structural support, while the webbing members inserted into channels provide flexible crumple zones. This local differentiation allows simultaneous achievement of structural strength and impact protection.
2Ease of manufacture
If fixed underbody dimensions are used, then manufacturing simplicity is maintained, but adaptability to different vehicle sizes is reduced
Solution Approach 1:
The underbody frame incorporates adjustable components that allow modification of platform dimensions. The webbing members can be configured in different lengths and arrangements, enabling the same basic frame structure to adapt to various vehicle sizes while maintaining manufacturing efficiency through standardized components.
Solution Approach 2:
The frame channels and webbing members are designed as universal components that can be configured for different vehicle applications. The same channel profiles and webbing designs can accommodate various platform sizes, making the manufacturing process efficient while providing adaptability across different vehicle models.
3Force
If webbing members with cells are used, then force load distribution is improved, but device complexity increases
Solution Approach 1:
The webbing members are segmented into multiple ribs and cellular structures that distribute force loads across multiple load paths. This segmentation improves force distribution by engaging multiple structural elements during impact, while the modular cellular design actually simplifies manufacturing through repetitive geometric patterns.
Data Source
AI summary
A webbing device for a vehicle underbody can comprise a plurality of rows of ribs and members that extend between the ribs to provide rigidity and force load distribution. The webbing device can comprise channels to receive a variety of structural components of the underbody and can accommodate underbodies of various sizes without altering its rigidity and force load distribution.