Vehicle Front Side Frame Gusset Integration
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Solution Overview
Problem
Existing vehicle body front structures face challenges in effectively absorbing collision energy during narrow offset collisions while minimizing vehicle weight and cost.
Innovation Solution
The vehicle body front structure incorporates a front bumper beam with left and right bumper beam extensions and frame side mounting members that form triangular gusset structures, allowing collision loads to be transferred to the rear half portions of the front side frames, which are designed with varying plate thicknesses and reinforcement to enhance energy absorption and rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If left and right gussets are provided at the front ends of the left and right front side frames to absorb collision energy, then collision energy absorption capability is improved, but vehicle body weight and cost increase
Solution Approach 1:
The patent merges the gusset structure with the front side frame by forming the gusset as an integrated part of the front side frame's side outer panel, rather than as a separate component. This integration eliminates the need for additional gusset parts while maintaining the triangular gusset structure's collision energy absorption capability, thereby reducing vehicle body weight and production cost
Solution Approach 2:
The front side frame is designed to serve multiple functions: it provides structural support for the vehicle body and simultaneously functions as the gusset for collision energy absorption. The side outer panel is formed to create the triangular gusset structure that projects outward, allowing the front side frame to absorb collision energy directly without requiring separate gusset components
2Reliability
If additional energy-absorbing components are added to the vehicle body front structure, then collision energy absorption capability is improved, but production cost increases
Solution Approach 1:
The patent combines the energy-absorbing gusset function with the existing front side frame structure. The side outer panel is formed to create the triangular gusset structure that integrates with the front side frame, eliminating the need for separate energy-absorbing components and reducing production cost while maintaining collision energy absorption capability
Solution Approach 2:
The front side frame is designed to serve dual purposes: providing structural support and functioning as the energy-absorbing gusset. The side outer panel formation creates the triangular gusset structure that allows the front side frame to absorb collision energy directly, making the structure multi-functional and eliminating additional components
Data Source
AI summary
There is provided a vehicle body front structure in which left and right frame side mounting members for connecting the rear ends of left and right bumper beam extensions are provided at the front ends. The left and right front side frames are formed from left and right side inner panels and left and right side outer panels. The left and right side outer panels are formed from left and right rear outer panels and left and right front outer panels. The left and right front outer panels are formed from left and right side plates, left and right upper plates, and left and right lower plates. At least one of the set of the left and right upper plates and the set of the left and right lower plates is formed by members different from the left and right side plates.