Reusable Drive Module with Sloped Skirt for Crash Testing

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Solution Overview

Problem

Current crash test systems for evaluating crash prevention systems face challenges in replicating real driving scenarios safely and efficiently, often resulting in damage to the target driving object during collision tests, which increases testing costs and risks.

Innovation Solution

A target driving object with a sloped skirt surrounding the main body, equipped with a drive module and communication module, allows a colliding object to climb up or down without direct impact, using a deformable driveshaft and repositioning module to absorb forces and a foldable antenna to prevent damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a dummy vehicle is used for crash testing, then real driving situations can be reproduced, but substantial impact damages the target driving object

Engineering Contradiction:
Improvereal driving situation reproductionVSAvoidtarget driving object durability
Core Design Contradiction:
Adaptability or versatilityVSStrength

Solution Approach 1:

The target driving object is divided into a main body and a detachable cover portion. The cover portion can be easily removed and replaced after damage, allowing the main body containing valuable electronic components to remain intact. This segmentation enables repeated use of the core system while replacing only the outer protective shell.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cover portion is designed as a separate replicable component that can be manufactured and replaced. Instead of damaging the entire target driving object, only the cover needs to be replaced, effectively copying the original structure to restore functionality after crash testing.

Inventive Principle:
Principle #26Copying

2Measurement precision

If crash prevention systems are tested with real vehicles, then accurate performance evaluation is achieved, but driver injury and vehicle damage occur

Engineering Contradiction:
Improvecrash prevention system evaluation accuracyVSAvoiddriver injury and vehicle damage
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The cover portion is designed as a disposable or easily replaceable component that absorbs impact damage. Instead of protecting expensive real vehicles and risking driver safety, the target driving object uses a sacrificial cover that can be replaced after testing, enabling safe and cost-effective crash prevention system evaluation.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The target driving object serves as an intermediary test target between real vehicles and collision objects. It provides a safe testing platform that reproduces real driving scenarios without exposing drivers to actual crash risks, as the target object can withstand or absorb impact without catastrophic failure.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Strength

If the target driving object is made robust to withstand impact, then damage is prevented, but cost and complexity increase

Engineering Contradiction:
Improveimpact resistanceVSAvoidstructure complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

Rather than making the entire target driving object robust and expensive, only the cover portion is designed as a simple, replaceable structure. The main body containing electronic components can be relatively simple since it doesn't need to withstand direct impact, reducing overall complexity and cost.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cover portion is designed to be discarded after absorbing impact damage and replaced with a new one. This approach is more cost-effective than building the entire object to withstand impact, as only the simple cover needs replacement rather than reinforcing the entire structure.

Inventive Principle:
Principle #34Discarding and recovering

Data Source

PatentUS10718690B2Reusable drive module for collision testing a vehicle
Publication Date: 2020.07.21 KOOKMIN UNIV IND ACAD COOP FOUND
  • US10718690B2 patent drawing
  • US10718690B2 patent drawing
  • US10718690B2 patent drawing

AI summary

Provided is a target driving object for carrying out a crash test with a colliding object for a crash prevention system test, and more particularly, a target driving object in which a sloped skirt is provided on the outside of a main body including a drive module and a communication module, thereby blocking a substantial impact and preventing occurrence of a breakdown.