Vehicle Input Line Assembly Protection via Semi-Permanent Attachment
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Solution Overview
Problem
The packaging of input line assemblies and components within vehicle sides, combined with the stowage of spare wheels, poses a risk of damage to the input line assembly during forward movement of the spare wheel, particularly in rear impact scenarios where the component is positioned between the spare wheel and the input line assembly.
Innovation Solution
A vehicle design that includes a body with a side featuring a beltline and rear wheelhouse, where the input line assembly is packaged within the rear wheelhouse, and a spare wheel is stowed alongside, with the component secured by a permanent beltline-side attachment and a semi-permanent rear wheelhouse-side attachment, allowing forward movement of the spare wheel while ensuring the component is displaced to prevent contact with the input line assembly through relative displacement between the attachments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the component is packaged within the side rearward of the input line assembly and the spare wheel is stowed alongside the side rearward of the rear wheelhouse, then convenient user accessibility from the cargo area is improved, but the input line assembly is at risk of damage under forward movement of the spare wheel through the component
Solution Approach 1:
The attachment system is segmented into two distinct attachments: a permanent beltline-side attachment and a semi-permanent rear wheelhouse-side attachment. This segmentation allows the component to be secured in normal operation while enabling controlled displacement during impact to protect the input line assembly.
Solution Approach 2:
The component is pre-positioned and secured by the permanent attachment before impact occurs. The semi-permanent attachment is designed to break away at a predetermined moment during impact, allowing the component to be carried away from the input line assembly trajectory in advance of potential damage.
2Stability of the object's composition
If the component is secured by a permanent attachment to prevent normal movement, then the component remains stable during vehicle operation, but the component cannot be displaced to prevent contact with the input line assembly during rear impact
Solution Approach 1:
The attachment system transitions from a static, permanently fixed state to a dynamic, controlled displacement state during impact. The semi-permanent attachment breaks away under impact forces, allowing the component to move from its secured position to a protective position away from the input line assembly.
Solution Approach 2:
The attachment characteristics change from permanent to semi-permanent based on the operational condition. The semi-permanent attachment is designed with specific break-away characteristics that allow it to maintain stability during normal operation but fail in a controlled manner during rear impact to enable component displacement.
Data Source
AI summary
A vehicle includes a body including a beltline and a rear wheelhouse, an input line assembly packaged about the rear wheelhouse, a component packaged about the rear wheelhouse rearward of the input line assembly, and a spare wheel stowed rearward of the rear wheelhouse. The component is secured by a permanent beltline-side attachment and a semi-permanent rear wheelhouse-side attachment. In response to rear impact, the body is configured to allow forward movement of the spare wheel, under which the spare wheel has a trajectory relative to which the component is between the spare wheel and the input line assembly, and relative displacement between the beltline-side attachment and the rear wheelhouse-side attachment, under which the rear wheelhouse-side attachment breaks against the beltline-side attachment, and the beltline-side attachment thereafter carries the component from between the spare wheel and the input line assembly relative to the trajectory of the spare wheel.