Dash Panel Deformation Suppression via Upward Impact Redirection

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Solution Overview

Problem

Existing vehicle deformation suppression structures fail to protect the brake system components from collision damage during front collisions, as they do not provide adequate protection for the master cylinder or other brake system components when the dash panel deforms inward.

Innovation Solution

A deformation suppressing structure that includes a protecting member made of metal, fixed to the dash panel and designed to displace upwardly during a collision, absorbing the impact of the engine or other weight components and reducing the inward displacement of the dash panel, thereby protecting the brake system components like the BOS and brake pedal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a guide portion is provided on the master cylinder to direct the battery laterally during front collision, then the dash panel deformation is suppressed, but the master cylinder itself is vulnerable to collision damage from surrounding members

Engineering Contradiction:
Improvedash panel deformation suppressionVSAvoidmaster cylinder protection
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

A protecting member is introduced as an intermediary component between the master cylinder and surrounding members. This protecting member absorbs collision forces from surrounding members during front collision, preventing direct impact on the master cylinder while the guide portion continues to direct the battery laterally to suppress dash panel deformation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The protecting member is positioned in advance around the master cylinder to provide cushioning protection before collision occurs. This pre-positioned protective structure absorbs impact forces from surrounding members, ensuring the master cylinder is protected from collision damage during front collision events.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

2Stability of the object's composition

If the master cylinder is allowed to displace laterally to protect the dash panel, then deformation is suppressed, but the master cylinder may collide with surrounding members

Engineering Contradiction:
Improvedash panel deformation suppressionVSAvoidcollision with surrounding members
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The protecting member serves as a mediator between the master cylinder and surrounding members. It allows the master cylinder to displace laterally for dash panel protection while simultaneously shielding it from harmful collisions with surrounding members through its own structural intervention.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Effectively suppresses the deformation of the dash panel inwardly while protecting the brake system components by redirecting the impact force upwardly, reducing the risk of damage to the brake system and maintaining the functionality of the brake pedal displacement suppression mechanism.

Implementation Method 1

absorbing the impact of the engine or other weight components and reducing the inward displacement of the dash panel

Methodology Applied
Scientific EffectImpact force absorption: Impact Force

Data Source

PatentEP3178713B1Deformation suppressing structure of vehicle
Publication Date: 2021.02.17 MITSUBISHI MOTORS CORP
  • EP3178713B1 patent drawingFigure 1
  • EP3178713B1 patent drawingFigure 2
  • EP3178713B1 patent drawingFigure 3

AI summary

A deformation suppressing structure of a vehicle includes a dash panel separating a driving unit space for installing a weight component and a vehicle interior space for a passenger to ride, a brake component disposed inside the driving unit space and between the weight component and the dash panel to control a hydraulic pressure of a brake system, and a protecting member fixed to the dash panel and accommodating the brake component. The protecting member includes a guide surface configured such that a contact point at which the guide surface contacts the weight component changes during a backward movement of the weight component at the time of a collision of the vehicle, and a contacting portion arranged to contact the dash panel at a location above a fixing point at which the protecting member and the dash panel are fixed to each other and above the contact point.