Rotating Battery Supports for Compact Saddle-Riding EVs
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Solution Overview
Problem
Existing saddle-riding type vehicles face challenges in achieving sufficient travel autonomy while maintaining compact dimensions and facilitating easy battery removal and repositioning without the need for tools, due to complex battery pack configurations and limited accessibility.
Innovation Solution
A saddle-riding type vehicle design featuring a pair of batteries positioned on opposite sides with movable supports that rotate between retracted and extended positions, allowing simple and tool-free removal and repositioning, while maintaining compact dimensions during travel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the battery pack volume is reduced to maintain compact vehicle dimensions, then the overall dimensions are improved, but the electric charge capacity and travel autonomy are reduced
Solution Approach 1:
The battery system is divided into multiple individual battery packs (at least two) that can be independently removed and replaced. This segmentation allows the total battery capacity to be distributed across multiple units, maintaining travel autonomy while enabling easier access and removal compared to a single large battery pack.
2Volume of moving object
If the battery pack is compacted with other components to reduce volume, then the overall dimensions are improved, but the accessibility for battery extraction and insertion is worsened
Solution Approach 1:
The battery packs are designed to be extractable from the vehicle by removing a cover, separating the battery access function from the compacted vehicle structure. This allows the batteries to be integrated into the vehicle's compact design while maintaining easy accessibility through a simple cover removal mechanism.
Solution Approach 2:
The cover is designed to be removable to provide preliminary access to the battery packs before actual extraction. This preliminary action of removing the cover simplifies the overall battery access process, allowing users to quickly reach and remove battery packs without complex disassembly procedures.
3Quantity of substance
If the batteries are positioned to maximize capacity, then the electric charge capacity is improved, but the complexity of removal and repositioning operations increases
Solution Approach 1:
The battery system uses multiple independent battery packs instead of a single integrated unit. This segmentation allows the battery system to achieve high total capacity while maintaining simple, standardized removal and repositioning operations for each individual pack, reducing overall system complexity.
Solution Approach 2:
The battery supports are made movable between retracted and extended positions, allowing the battery configuration to adapt between a compact state during vehicle operation and an extended state that facilitates easy battery removal and repositioning, thereby reducing operational complexity.
4Ease of operation
If tool-free battery removal is implemented, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The battery supports are designed to be movable between retracted and extended positions, enabling tool-free battery removal. The dynamic nature of the support system allows it to automatically facilitate battery extraction when extended, while returning to a compact retracted position when not in use, balancing ease of operation with acceptable device complexity.
Data Source
AI summary
A saddle-riding type vehicle comprises a frame extending mainly along a longitudinal direction and comprising front, central, and rear portions. The vehicle comprises a powertrain connected to the frame and comprising at least one electric motor operatively connected to at least one driving wheel. The vehicle also comprises an electrical power supply assembly for powering the electric motor to allow the traction of the vehicle and comprising at least one first pair of batteries arranged on opposite sides with respect to a longitudinal center plane of the vehicle, orthogonal to the axis of rotation of the at least one driving wheel. Each battery is supported by a corresponding support movable between retracted and extended positions, each support being operatively connected to moving means which releases and/or causes the rotation of the support itself around a corresponding axis of rotation to allow the supports to reach the extracted position.