Unibody Cargo Module Architecture for Vehicle Rear-End Modularity
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Solution Overview
Problem
Unibody vehicles lack modularity, requiring complete redesign for changes to the cargo area or other portions, leading to increased manufacturing costs and inefficiencies, as they cannot accommodate aftermarket modules without substantial structural modifications.
Innovation Solution
A modular system for unibody vehicles, where detachable cargo modules with standardized mounting points allow for easy replacement and upgrading, enabling different functionalities without altering the underlying vehicle structure, using fasteners for secure attachment and detachment, and ensuring electrical connectivity for power and components like tail lamps and sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If unibody construction is used to reduce weight and improve fuel efficiency, then weight and fuel efficiency are improved, but modularity and adaptability deteriorate
Solution Approach 1:
The unibody vehicle structure is segmented into a base unibody platform and separate detachable modules. The module includes a cargo area, tailgate, and bumper assembly that can be detached from the unibody. This segmentation allows the vehicle to maintain the weight benefits of unibody construction while gaining modularity through interchangeable modules that attach to standardized mounting points on the unibody structure.
2Adaptability or versatility
If traditional body on frame construction is used to enable module attachment, then adaptability is improved, but weight and fuel efficiency deteriorate
Solution Approach 1:
The body on frame capability is segmented and transferred to the unibody through standardized mounting points and attachment mechanisms. Instead of requiring a separate frame structure, the unibody incorporates integrated mounting points that allow detachable modules to be attached directly to the body structure, achieving frame-like modularity without the frame-like weight.
3Stability of the object's composition
If complete unibody redesign is performed to modify cargo area, then structural integrity is maintained, but manufacturing cost and time increase
Solution Approach 1:
The cargo area and related components are segmented into a separate detachable module that can be manufactured independently from the main unibody structure. This allows the unibody itself to remain unchanged and structurally intact, while the module can be designed, manufactured, and installed separately, significantly reducing manufacturing costs and complexity compared to redesigning the entire unibody.
Solution Approach 2:
The unibody is designed with universal standardized mounting points that can accommodate different module configurations. This universality allows the same unibody platform to support various module types (different cargo areas, tailgates, bumpers) without requiring structural modifications, enabling cost-effective production of multiple vehicle variants.
4Adaptability or versatility
If detachable modules are implemented on unibody, then modularity is improved, but attachment complexity increases
Solution Approach 1:
The attachment mechanism is segmented into discrete mounting points distributed throughout the unibody structure. These mounting points provide standardized attachment locations that simplify the module connection process. The module includes corresponding attachment features that engage with these predefined points, creating a relatively simple attachment system compared to custom-fitted solutions.
Data Source
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AI summary
A system for modifying the structure of a unibody vehicle includes a vehicle body having a unibody construction and a first module attached to the vehicle body. The first module is removable from the vehicle body and replaceable with a second module having a different size and/or functionality. A rear portion of the first module may be removed from the first module and attached to the second module. The first module may be a stock cargo module, and the second module may be an aftermarket module. The rear portion may be a stock tail tamp and/or sensor module. The rear portion may be removed before or after removing the first module from the vehicle body, and may be attached to the second module before or after attaching the second module to the vehicle body.