Modular Vehicle Body Joint Structure for PBV Adaptation
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Solution Overview
Problem
The vehicle industry faces high costs and structural complexity when adapting vehicle bodies for various customized services, such as hailing, cab, and delivery types, due to the need for frequent changes in the upper body configuration of purpose-built vehicles (PBVs).
Innovation Solution
A modular joint structure for the vehicle body comprising a fixed front body module, a detachable rear body module, and a joint mounting reinforcement unit that allows for easy attachment and detachment of the rear body module to the under body, utilizing fixed and variable part joints and reinforcement members to secure and distribute load across the vehicle body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the upper body structure is changed to accommodate various customized services, then the adaptability of the vehicle body is improved, but the manufacturing cost and structural complexity increase
Solution Approach 1:
The vehicle body is divided into a fixed front body module and a detachable rear body module. The rear body module can be separated from the front body module, allowing different rear modules to be attached based on service requirements (e.g., hailing, cab, delivery). This segmentation enables high adaptability while maintaining relatively simple individual module structures.
Solution Approach 2:
The front body module is designed as a universal fixed part that can accommodate multiple types of rear body modules. The standardized joint structure allows the same front body module to work with different rear modules for various customized services, achieving multi-functionality without increasing overall structural complexity.
2Adaptability or versatility
If the upper body structure is changed to accommodate various customized services, then the adaptability of the vehicle body is improved, but the manufacturing cost increases
Solution Approach 1:
By segmenting the vehicle body into fixed and detachable modules, the patent enables flexible configuration without requiring complete redesign of the entire upper body. This reduces manufacturing costs compared to producing different complete vehicle bodies for each service type.
Solution Approach 2:
The detachable rear body module can be removed and replaced based on service needs. The fixed front body module and joint structure serve as reusable components that can be recovered and reused across different vehicle configurations, reducing overall manufacturing costs.
3Ease of operation
If a detachable rear body module is used, then the ease of adaptation to different services is improved, but the structural strength and reliability may be compromised
Solution Approach 1:
The joint structure merges multiple reinforcement elements (reinforcement members, support members, connection brackets) into an integrated system. This combination provides enhanced structural strength at the connection points between modules, ensuring reliability while maintaining ease of detachment.
Solution Approach 2:
The joint structure employs composite construction combining different materials and structural elements (reinforcement members, support members, connection brackets) to achieve both ease of detachment and structural strength. The multi-component joint system provides reliable connections while enabling flexible module replacement.
Data Source
AI summary
An embodiment joint structure of a vehicle body includes a front body module including a fixed part fixed to a front part of an under body, a rear body module including a variable part detachably coupled to a rear part of the under body and a rear part of the front body module, the rear body module having a predetermined shape, fixed part joints disposed at a rear edge of the front body module and at a rear of the under body, variable part joints disposed on a front edge and a rear lower part of the rear body module and connected with the fixed part joints, and a joint mounting reinforcement unit disposed on a lower inner side of a rear pillar assembly disposed on both sides of the rear part of the rear body module and connected with the variable part joints.