Vehicle Interior Module Assembly Beyond Door Opening Constraints
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Solution Overview
Problem
The traditional vehicle assembly process limits the size and shape of interior components due to constraints imposed by door and roof openings, driving up costs and complexity, and reducing modularity.
Innovation Solution
A method involving assembling a chassis platform, mounting a floor pan to the platform, and then attaching a modular interior, followed by assembling and mounting a body top-hat separately, allowing for greater flexibility and modularity in interior component design and installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If interior components are assembled through door openings in traditional vehicle assembly, then assembly can be performed using conventional processes, but the size and shape of interior components are limited and design flexibility is reduced
Solution Approach 1:
The vehicle body is segmented into separate modules: the body-in-white (BIW) is assembled first, then the interior assembly (including dashboard, seats, carpets, headliner) is assembled as a separate module, and finally these modules are joined together. This segmentation allows each module to be optimized independently, enabling larger and more complex interior components without constraining them to fit through door openings.
Solution Approach 2:
The assembly approach transitions from inserting components through lateral door openings to assembling the interior module on the floor pan and then lifting it into position through the vertical dimension (from below). This dimensional change removes the size constraints imposed by door opening dimensions.
2Length of moving object
If interior components are constrained to fit through door openings, then conventional assembly tools and processes can be used, but component size and shape options are limited
Solution Approach 1:
By separating the interior assembly from the body-in-white assembly processes, the interior components can be manufactured to full size without needing to be disassembled or squeezed through door openings. The interior module is assembled complete on the floor pan and then integrated as a unit.
Solution Approach 2:
The interior assembly (dashboard, seats, carpets, headliner, trim) is pre-assembled into a complete interior module before being installed in the vehicle. This preliminary assembly allows components to be joined and configured in their final positions without spatial constraints from door openings.
3Productivity
If traditional assembly processes are used with door opening constraints, then existing manufacturing workflows can be maintained, but assembly costs and complexity increase
Solution Approach 1:
Dividing the vehicle assembly into distinct modules (body-in-white and interior assembly) that can be manufactured and prepared separately, then joined together. This modular approach streamlines the overall process by allowing parallel manufacturing of modules and reducing the complexity of single-step assembly operations.
Solution Approach 2:
Multiple interior components (dashboard, seats, carpets, headliner, trim elements) are merged into a single integrated interior assembly module that is installed as one unit. This combining reduces the number of separate installation operations and simplifies the overall assembly process.
Data Source
AI summary
A vehicle assembly method includes assembling a chassis platform, mounting a floor pan to the platform, mounting a modular interior to the floor pan, assembling a body top-hat separate from the platform and the floor pan, and mounting the body top-hat to the platform and the floor pan after mounting the modular interior to the floor pan.