Aluminum Front Pillar Structure for Multi-Path Crash Load Distribution

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Solution Overview

Problem

Current front vehicle body structures face challenges in distributing front impact loads effectively, leading to potential weaknesses in collision performance, increased weight, and higher costs due to the need for additional reinforcing parts.

Innovation Solution

A front vehicle body structure featuring aluminum-made front pillar units with integrated rib reinforcements, including outer and inner ribs, and combining bosses, which form multiple load paths to distribute collision loads efficiently, reducing the number of parts and weight while enhancing connectivity and crash performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If separate connecting parts are added to reinforce the front pillar assembly, then connection strength is improved, but the number of parts, weight and cost increase

Engineering Contradiction:

Improveconnection strengthVSAvoidnumber of parts

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The patent integrates the connecting part functionality directly into the front pillar assembly structure by forming protrusions and recesses that mate together. This merging eliminates separate connecting parts while maintaining connection strength, thereby reducing part count, weight and cost.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The front pillar assembly is designed with integrated connecting features that serve multiple functions: structural support, load transmission, and connection to other body parts. This multi-functionality eliminates the need for dedicated separate connecting components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Strength

If separate connecting parts are added to reinforce the front pillar assembly, then connection strength is improved, but weight increases

Engineering Contradiction:

Improveconnection strengthVSAvoidvehicle body weight

Core Design Contradiction:

StrengthVSWeight of moving object

Solution Approach 1:

By merging the connecting functionality into the front pillar assembly itself through integrated protrusions and recesses, the patent eliminates the need for additional separate connecting parts, thereby reducing overall weight while maintaining connection strength.

Inventive Principle:

Principle #5Merging (Combining)

3Device complexity

If the front pillar assembly structure is simplified, then the number of parts is reduced, but load distribution capability may be compromised

Engineering Contradiction:

Improvenumber of partsVSAvoidload distribution capability

Core Design Contradiction:

Device complexityVSStrength

Solution Approach 1:

The patent combines multiple structural functions into the front pillar assembly, including load-bearing columns, connecting features, and reinforcement elements, all integrated into a single assembly that reduces part count while maintaining load distribution capability.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The front pillar assembly incorporates locally reinforced areas with specific geometric features (protrusions, recesses, rib structures) that provide enhanced load distribution capability at critical locations without requiring overall structural complexity.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS11873028B2Front vehicle body structure

Publication Date: 2024.01.16 HYUNDAI MOTOR CO LTD

AI summary

An embodiment front vehicle body structure includes a fender apron upper member, a front side member coupled to a front portion of the fender apron upper member, and a front pillar unit coupled to a rear portion of the front side member and a rear portion of the fender apron upper member, the front pillar unit including an aluminum material.