EV Seat Attachment Through Battery Pack Structural Members
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Solution Overview
Problem
The architecture of recreational vehicles with internal-combustion engines is not compatible with electric recreational vehicles, as they require different designs to accommodate electric motors, battery packs, and structural support for the seat, which is not addressed in existing technologies.
Innovation Solution
A frame design for electric recreational vehicles that includes a battery pack mounted rearward of the electric motor, with structural members delimiting module-receiving sections and a seat secured to these members, providing a load transmission path through the battery enclosure to support the seat and distribute loads effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the seat is supported directly by the battery enclosure in existing designs, then the battery enclosure provides structural support, but the weight and cost of the battery enclosure increase
Solution Approach 1:
A dedicated seat support structure acts as an intermediary between the seat and the battery enclosure. This separate structural framework carries the seat loads independently, preventing these loads from being transferred to the battery enclosure. The battery enclosure serves only its primary function of housing battery modules, while the seat support structure handles all seating-related mechanical loads, thus resolving the contradiction between providing structural support and minimizing battery enclosure weight.
2Strength
If the battery enclosure is designed to support the seat, then structural support is provided, but the complexity of the battery enclosure design increases
Solution Approach 1:
The vehicle structure is segmented into functionally distinct components: the battery enclosure for housing battery modules and the separate seat support structure for carrying the seat. This segmentation allows each component to be optimized for its specific function without the design complexities that would arise from combining multiple functions into a single structure. The battery enclosure design remains simple and focused, while all structural support requirements are handled by the dedicated seat support framework.
3Adaptability or versatility
If existing vehicle architecture is used for electric vehicles, then design continuity is maintained, but the architecture is not compatible with electric motors and battery packs
Solution Approach 1:
The seat support structure is designed as a universal framework that can accommodate different seat configurations and positions while maintaining compatibility with the electric vehicle's battery pack arrangement. This multi-functional structure provides structural support, defines the vehicle's structural architecture, and allows for various seat mounting options, thereby achieving adaptability without proportionally increasing overall system complexity.
Data Source
AI summary
An electric recreational vehicle, has: a frame extending along a longitudinal axis; an electric motor mounted to the frame; a battery pack mounted to the frame and disposed at least partially rearward of the electric motor relative to the longitudinal axis, the battery pack including one or more battery modules operatively connected to the electric motor for supplying electrical energy to the electric motor, a battery enclosure containing the one or more battery modules, and at least one structural member located within the battery enclosure and delimiting at least one module-receiving section, the one or more battery modules located within the at least one module-receiving section; and a seat disposed over the battery pack and secured to the at least one structural member of the battery pack, a load transmission path extending between the frame and the seat through the at least one structural member of the battery pack.