Annular Cabin Front Supporting Body for Impact Distribution
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Solution Overview
Problem
Current cabin front supporting structures in automobiles are inadequate in absorbing and distributing side impact collisions, leading to significant cabin deformation due to the lack of sufficient frames to absorb the impact, especially when the collision is oblique.
Innovation Solution
A cabin front part supporting body comprising a front frame that contacts and extends along a thickened part of the cabin front wall, a rear frame inside the instrument panel, and a pair of side frames that annularly couple both ends of the front and rear frames, providing enhanced structural support and distribution of impact forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If only a single instrument panel bracket is used to support the hinge pillars, then the device complexity is reduced, but the ability to absorb collision impact is insufficient leading to larger cabin deformation
Solution Approach 1:
The single instrument panel bracket is divided into multiple segments: a front frame, a rear frame, and a pair of side frames. Each frame segment is positioned at different locations and orientations to collectively absorb collision impact from various directions, transforming a single-point support into a distributed multi-point support system.
Solution Approach 2:
The supporting structure transitions from a single linear bracket to a three-dimensional annular configuration. The side frames extend in the vehicle width direction, adding dimensional coverage to the support structure, allowing impact forces to be distributed across multiple spatial dimensions rather than concentrated along a single line.
2Strength
If the front frame contacts the thickened part of the cabin front wall, then the structural strength is improved, but the manufacturing precision requirement increases
Solution Approach 1:
The front frame is specifically designed to contact only the thickened part of the cabin front wall, which is a localized area of enhanced strength. This concentrates the load-bearing function on the strongest available structural feature, optimizing the strength-to-complexity ratio by engaging only the necessary high-strength zone rather than requiring uniform precision across the entire contact surface.
Data Source
AI summary
A cabin front part supporting body includes a front frame that contacts a thickened part of a cabin front wall part disposed to cover a front side of an instrument panel and extends in vehicle width directions of an automobile, a rear frame that is disposed inside the instrument panel and rearward of the front frame and extends in the vehicle width directions, and side frames in a pair annularly coupling both end parts of the front frame to both end parts of the rear frame, respectively.