Vehicle Deck Reinforcement Structure for Rear Gate Impact Rigidity
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Solution Overview
Problem
The existing reinforcement structures for vehicle decks are vulnerable to impact when the rear gate is opened, lacking sufficient rigidity and integration with the wheelhouse assembly.
Innovation Solution
A reinforcement structure that includes a wheelhouse assembly and a reinforcement unit integrally configured with the deck, featuring a gradation part with rigid ribs, a striker part, a hinge part, and a rear hook part, which are fastened to the chassis frame and side members to enhance rigidity and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a separate reinforcement structure is used for the wheelhouse assembly, then the deck can be assembled from modular components, but the structure becomes vulnerable to impact when the rear gate is opened due to insufficient integration and rigidity
Solution Approach 1:
The reinforcement unit is integrally formed with the wheelhouse assembly as a single unified structure. The wheelhouse assembly includes a body portion and a reinforcement unit that are cast together, creating seamless integration between the reinforcement structure and the wheelhouse. This eliminates weak interfaces between separate components while maintaining manufacturing efficiency through integral casting.
Solution Approach 2:
The reinforcement unit incorporates multiple structural elements including rigid ribs, a rigid part, a striker part, and a hinge part, all formed as an integrated composite structure. This composite design combines different functional elements into a unified reinforcement system that provides both structural strength and gate mounting functionality.
2Strength
If the reinforcement unit is integrally cast with the wheelhouse assembly, then structural rigidity and impact resistance are enhanced, but manufacturing complexity increases
Solution Approach 1:
The reinforcement unit is segmented into distinct functional regions including a gradation part with multiple rigid ribs, a rigid part, a striker part, and a hinge part. Each segment serves a specific function while being integrally formed, allowing complex functionality to be achieved through systematic division of the structure into manageable segments.
Solution Approach 2:
The reinforcement unit features local quality variations with rigid ribs positioned at different heights and densities in the gradation part. The rigid ribs are arranged with smaller intervals in certain regions to provide enhanced local reinforcement where needed, while maintaining overall structural efficiency.
3Stability of the object's composition
If multiple rigid ribs are positioned in the gradation part, then rigidity is enhanced throughout the structure, but the number of structural elements increases
Solution Approach 1:
The rigid ribs are arranged in a gradation pattern where the spacing and positioning vary systematically throughout the structure. This dynamic arrangement optimizes rigidity distribution based on local structural requirements, providing enhanced stability where needed while reducing unnecessary material in less critical areas.
Solution Approach 2:
The rigid ribs are positioned in the height direction of the wheelhouse assembly, creating a three-dimensional reinforcement pattern. This vertical arrangement adds a height dimension to the reinforcement strategy, providing comprehensive structural stability through multi-dimensional rib positioning rather than simple planar reinforcement.
Data Source
AI summary
An embodiment structure for reinforcing a deck of a vehicle includes chassis frames positioned on both side surfaces of a lower end of the deck of the vehicle, a wheelhouse assembly positioned on the chassis frame and defining a side surface of the deck, and a reinforcement structure positioned at an end of the wheelhouse assembly at a position where a rear gate is positioned at a rear end of the deck.