Angled Support Profile Bumper Energy Distribution

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Solution Overview

Problem

Existing bumper assemblies for vehicles do not effectively distribute impact energy during collisions, leading to force peaks at connection points and potential damage to welded or screw connections.

Innovation Solution

A bumper assembly design featuring a deformation profile with a support profile extending at an angle between the deformation profile and the bumper, which includes a towing section for attaching towing means, ensuring that impact energy is distributed over a larger area and stabilizing the connection point during collisions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the bumper arrangement uses a direct connection between the deformation profile and the bumper, then the structure is simple, but force peaks occur at the connection point during impact

Engineering Contradiction:
Improvestructural simplicityVSAvoidconnection strength
Core Design Contradiction:
Device complexityVSStrength

Solution Approach 1:

The patent introduces a support element as an intermediary component between the deformation profile and the bumper. This support element includes a support profile that connects to both the deformation profile and the bumper, thereby mediating the force transmission and preventing direct force peaks at the connection points. The support element acts as a buffer that distributes impact forces more evenly across the structural connection.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Strength

If the support profile extends at an angle between the deformation profile and the bumper, then impact energy is distributed over a larger area, but the device complexity increases

Engineering Contradiction:
Improveimpact energy distributionVSAvoidstructural complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The support profile is designed to extend at an angle rather than in a straight line, introducing a dimensional aspect to the force distribution. This angular configuration allows impact energy to be distributed over a larger area by projecting forces in multiple directions, effectively utilizing spatial geometry to enhance energy dissipation without requiring additional complex components.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Device complexity

If the towing section is integrated into the support element, then the device complexity is reduced, but the stability during towing may be compromised

Engineering Contradiction:
Improvenumber of componentsVSAvoidtowing stability
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

The towing section is merged with the support element to form an integrated component. This combination reduces the total number of separate parts while maintaining structural integrity. The towing section is positioned and configured within the support element such that it does not compromise the stability during towing, as the support profile continues to provide structural reinforcement and force distribution.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The angled support profile distributes forces effectively, reducing the occurrence of force peaks and stabilizing the bumper assembly, thereby enhancing its ability to absorb impact energy and preventing damage to connections.

Implementation Method 1

The bumper arrangement can have corresponding connecting elements, or impact boxes, in the form of hollow chamber profiles, which absorb impact energy in the event of a vehicle impact by deformation in the direction of the force action.

Methodology Applied
Scientific EffectDeformation: Deformation

Implementation Method 2

The force acting on the bumper in the event of an impact is distributed by the support element over as large an area as possible between the deformation profile and the bumper, so that the occurrence of force peaks at the direct connection point between the deformation profile and the bumper is avoided

Methodology Applied
Scientific EffectForce distribution: Force

Data Source

PatentEP3715184B1Bumper arrangement
Publication Date: 2021.09.08 BENTELER AUTOMOBILTECHNIK GMBH
  • EP3715184B1 patent drawingFigure 1
  • EP3715184B1 patent drawingFigure 2
  • EP3715184B1 patent drawingFigure 3

AI summary

The disclosure comprises a bumper arrangement (100) for a vehicle, comprising a bumper (101) extending along a bumper axis (103) and designed to absorb impact energy; a deformation profile (105) for attaching the bumper (101) to a vehicle component, wherein the deformation profile (105) has a first attachment section (107-1) for attaching the deformation profile (105) to the bumper (101) and a second attachment section (107-2) for attaching the deformation profile (105) to the vehicle component;and a support element (113), with a support profile (115) which runs at an angle between the deformation profile (105) and the bumper (101), and a towing section (117) for receiving a towing device for towing the vehicle, wherein the support profile (115) is connected to the bumper (101) and to the deformation profile (105), wherein the towing section (117) is attached inside or to the bumper (101), and has an opening (119) for receiving the towing device.