Flat Vehicle Chassis Platform for Flexible EV Battery Packaging
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Solution Overview
Problem
Current vehicle chassis platforms have limited design flexibility due to their complex shape, large footprint, and high weight, which restricts the accommodation of electric vehicle batteries and other components, limiting their size and placement options.
Innovation Solution
A vehicle chassis platform with a substantially flat upper frame surface and mechanical connectors on longitudinal lateral frame surfaces, allowing for the integration of electric vehicle batteries and other units without occupying space beneath the bottom frame surface or above the upper surface, thereby increasing design flexibility and accommodating various battery sizes and types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional vehicle chassis design is used with complex shape and non-continuous portions, then structural strength is maintained, but design flexibility is limited and battery accommodation is restricted
Solution Approach 1:
The chassis is divided into a modular platform structure with discrete mounting positions and attachable body portions, allowing independent configuration of different vehicle types (delivery vehicles, passenger vehicles, etc.) on the same base platform, thereby improving design flexibility without compromising structural integrity
Solution Approach 2:
The standardized mounting positions and attachable body portions enable the same chassis platform to support multiple vehicle configurations and functions, allowing a single platform design to serve various purposes such as delivery, passenger transport, and different cargo types
2Volume of moving object
If components are positioned beneath the bottom surface or above the upper surface of the chassis, then space utilization is maximized, but the footprint and weight of the chassis increase
Solution Approach 1:
The patent utilizes the vertical dimension by positioning components within the chassis cavity space between the bottom and upper surfaces, effectively using previously underutilized three-dimensional space for battery placement without increasing the overall footprint or weight of the chassis structure
3Adaptability or versatility
If traditional chassis with large footprint is used, then structural stability is maintained, but battery placement options are limited
Solution Approach 1:
The chassis design incorporates localized mounting positions with specific structural characteristics optimized for battery attachment, allowing flexible battery placement within the existing footprint by utilizing locally reinforced areas rather than requiring overall chassis enlargement
Data Source
AI summary
A vehicle chassis platform including: a frame having a front frame end, a rear frame end, a longitudinal frame axis, an upper frame surface, a bottom frame surface, a first longitudinal lateral frame surface and a second longitudinal lateral frame surface, wherein the upper frame surface is substantially flat; and two or more mechanical connectors each on one of the first and second longitudinal lateral surfaces, each of mechanical connectors to couple a vehicle corner module (VCM) to the frame and to transfer mechanical loads between the frame and the VCM when the VCM is on the frame.