Triangular Gusset for Vehicle Front Structure Load Transmission
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Solution Overview
Problem
Conventional vehicle front structures face challenges in transmitting collision loads effectively across the vehicle width direction, leading to inadequate structural rigidity, particularly during front collisions, which can result in deformation of the dash panel.
Innovation Solution
The vehicle front structure incorporates a triangular gusset bonded to the side sill and pillar, with an inclined surface extending upward, forming a three-layer bonded structure with the dash panel, allowing for efficient load transmission to the side sill and pillar, thereby dispersing the collision load in the vehicle width and front-rear directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the dash panel is bonded to the side sill at the lateral part, then the dash panel is prevented from being significantly deformed due to rear load, but the collision load cannot be transmitted in the vehicle width direction
Solution Approach 1:
The triangular gusset introduces a new spatial dimension for load transmission by extending from the dash panel outward to the side sill, enabling width-direction force transfer that was previously absent in the conventional two-point bonding configuration
Solution Approach 2:
The triangular gusset acts as an intermediary structural element between the dash panel and side sill, providing a dedicated load transmission path that mediates the collision forces and distributes them across multiple components
2Strength
If the triangular gusset is added to transmit collision load, then structural rigidity is facilitated, but device complexity increases
Solution Approach 1:
The triangular gusset is integrated as a single bonded component connecting multiple existing structural elements (dash panel, side sill, pillar), merging their load-bearing functions into a unified structural system rather than adding separate reinforcement elements
Data Source
AI summary
A vehicle front structure includes: a floor panel, disposed on a lower end side of a vehicle; a side sill, disposed on each side of the floor panel in a vehicle width direction, and extending along a vehicle front-rear direction; a pillar, disposed above the side sill, and extending in a vehicle upper-lower direction; a dash panel, disposed at a front of the side sill and the pillar to be erected upward toward a front from the floor panel, and partitioning a vehicle compartment and a front compartment; and a triangular gusset, bonded to an upper surface of the side sill and a vehicle inner surface of the pillar. The triangular gusset has an inclined surface obliquely extending upward from an inner end of the side sill toward the vehicle inner surface of the pillar. The inclined surface of the triangular gusset is bonded to the dash panel.