Vehicle Body Connection Structure for Modular Assembly
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Solution Overview
Problem
Conventional vehicle body manufacturing requires multiple molds for each vehicle model, leading to decreased workability and inefficiency due to the complex and unique assembly structures of monocoque-type vehicle bodies.
Innovation Solution
A connection structure for a modularized space frame vehicle body that includes a roof side rail member, a roof rear cross member, a rear pillar member, and a cover bracket, allowing for easy assembly and strong, rigid coupling of the rear pillar to the roof and floor, with options for direct coupling or reinforcement, enhancing strength and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple molds are used for each vehicle model with complex assembly structures, then the vehicle body can be constructed with customized shapes and coupling structures, but the workability decreases and manufacturing efficiency is reduced
Solution Approach 1:
The patent applies universality by designing a standardized connection structure that can be used across multiple vehicle models. The connection structure includes a connection portion with a connection surface that can couple with various roof side rail members, and a pillar portion that connects to the rear pillar. This modular design allows the same connection structure to be adapted to different vehicle models without requiring custom molds for each model, thereby improving workability while maintaining customization capability.
Solution Approach 2:
The connection structure is segmented into distinct functional portions: a connection portion for coupling with the roof side rail member, a pillar portion for connecting to the rear pillar, and optionally a reinforcement portion. This segmentation allows each component to be manufactured independently using standardized molds, then assembled together. The segmented design enables the same basic structure to serve multiple vehicle models while allowing minor modifications to accommodate different requirements.
2Adaptability or versatility
If multiple molds are manufactured for different vehicle models, then each vehicle model can have its specific assembly structure, but the manufacturing cost and complexity increase
Solution Approach 1:
The connection structure serves as a universal component that can be applied to multiple vehicle models. The standardized connection surface and modular design allow the same mold to produce connection structures for different models, reducing the total number of molds required. The structure maintains adaptability through its ability to accommodate variations in roof side rail members and rear pillar configurations across different vehicle models.
3Ease of manufacture
If the rear pillar member is directly coupled to the roof side rail member, then the assembly process is simplified, but the strength and rigidity of the connection may be insufficient
Solution Approach 1:
The connection structure provides a dynamic coupling solution where the connection portion can be directly coupled to the roof side rail member for simplified assembly, or optionally include a reinforcement portion when enhanced strength is required. The modular design allows the assembly process to be adapted based on specific application requirements, maintaining ease of manufacture while providing the option to strengthen the connection when needed.
Solution Approach 2:
The connection structure can incorporate reinforcement portions that combine multiple functional elements. The reinforcement portion may include additional coupling surfaces, strengthening ribs, or composite structural features that enhance the connection strength between the rear pillar and roof side rail member while maintaining the overall modular assembly approach.
Data Source
AI summary
A connection structure of a vehicle body includes a roof side rail member extending in a longitudinal direction of the vehicle body, a roof rear cross member extending in a transverse direction of the vehicle body, and having an end coupled to a rear end of the roof side rail member, a rear pillar member extending in a vertical direction of the vehicle body, and having an upper portion connected to the rear end of the roof side rail member and aligned with the end of the roof rear cross member, and a cover bracket covering a portion where the rear end of the roof side rail member, the end of the roof rear cross member, and the upper portion of the rear pillar member are connected to each other, the cover bracket configured to be integrated with the portion in a single body.