Vehicle Front-End Structure for Small Offset Barrier Crash
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Solution Overview
Problem
Vehicles face challenges in passing the small offset rigid barrier (SORB) test while minimizing structural damage and weight, as existing structural designs often require trade-offs between energy absorption and weight reduction.
Innovation Solution
A method and system for determining an optimized front end vehicle structure by analyzing control factors at different levels, using a computer-aided engineering system to evaluate signal-to-noise ratios and select components that enhance energy absorption without unnecessary weight addition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional structural components are added to improve energy absorption in SORB tests, then crash safety is improved, but vehicle weight increases
Solution Approach 1:
The patent applies parameter changes by systematically varying structural parameters (component presence, material properties, geometric dimensions) across multiple design alternatives and evaluating them through crash simulations to identify optimal parameter combinations that achieve safety goals with minimal weight
Solution Approach 2:
The patent applies local quality by selectively adding or modifying specific structural components only in regions where they provide the most effective energy absorption during crash events, rather than uniformly strengthening the entire vehicle structure, thereby improving safety where needed while minimizing overall weight increase
2Object-affected harmful factors
If structural components are added to reduce cabin intrusion, then passenger safety is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the front end structure into multiple independent components (e.g., bumper assembly, radiator support, fender, hood reinforcement) that can be individually designed, simulated, and optimized to achieve cabin protection goals without requiring complete redesign of the entire structure
Solution Approach 2:
The patent uses parameter changes to systematically explore different structural configurations and material properties to identify the simplest design that achieves adequate cabin protection, avoiding unnecessary complexity by evaluating multiple parameter combinations through crash simulations
Data Source
AI summary
A method of determining a front end vehicle design forming a plurality of control factors for a front structure of a vehicle, each control factor comprising a first level and a second level, selecting a first level or a second level for each control factors based on a crash velocity and an amount of energy absorbed and forming a vehicle design output corresponding to the first level or the second level based on selecting.