Foldable Electric Vehicle Frame Structure for Portability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing portable vehicles for on-road and off-road travel, especially those capable of carrying small loads, are either not portable or require special skills to operate, and existing off-road vehicles are either bulky or heavy, making them difficult to transport.
Innovation Solution
A four-wheeled vehicle with a load-bearing structure comprising a lower and upper perimeter frame joined by metal or carbon fibre bars, featuring a foldable design, electric motor, and shock absorbers, allowing for easy portability and use on various terrains with the ability to carry light goods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional off-road vehicles (quad-bikes) are used, then they provide agility and strength on rough terrain, but they are heavy and require special transport equipment
Solution Approach 1:
The vehicle frame is divided into modular components (lower perimeter frame, upper perimeter frame, connecting bars) that can be assembled and disassembled. This segmentation allows the vehicle to be taken apart for easy transport while maintaining full strength when assembled, resolving the contradiction between strength and portability.
Solution Approach 2:
The patent uses advanced materials (aluminum alloys, stainless steel, carbon fibers) that fundamentally change the weight parameter while maintaining or improving strength. These material parameter changes enable the vehicle to be both strong and lightweight, eliminating the need for heavy traditional off-road vehicles.
2Weight of moving object
If foldable electric three-wheelers are used, then they are easily portable, but they require bulky accessories to transport objects
Solution Approach 1:
The vehicle's frame structure serves multiple functions: it provides structural support, enables folding for portability, and includes integrated mounting points for cargo. The perimeter frames and connecting bars are not just structural elements but also serve as attachment points, eliminating the need for separate bulky accessories and reducing device complexity.
3Weight of moving object
If vehicles are designed for portability, then they are easy to transport, but they lack the capacity to carry loads safely
Solution Approach 1:
The patent employs composite material construction combining aluminum alloys, stainless steel, and carbon fibers. These composite materials provide high strength-to-weight ratio, enabling the vehicle to remain lightweight for portability while simultaneously achieving the structural integrity needed for safe load carrying, thus resolving the contradiction between weight and reliability.
4Stability of the object's composition
If traditional four-wheeled vehicles are used, then they provide stability and load capacity, but they are not portable
Solution Approach 1:
The four-wheeled vehicle is segmented into a foldable perimeter frame structure that can be disassembled for portability. The segmentation allows the vehicle to maintain its stable four-wheeled configuration during operation while enabling easy breakdown for transport, resolving the contradiction between stability and portability.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The electric four-wheeled vehicle has a load-bearing structure formed by a lower perimeter frame, an upper perimeter frame, two first bars (1), two second bars (2) and two third side bars (33); the first bars (1) and the second bars (2) are pivoted onto the lower and upper perimeter frames; a fork is pivoted onto the lower perimeter frame; a shaft (27) is constrained to the fork, said shaft being connected to the electric motor (31); between the two frames there being a space in which a container to hold objects (47) is housed; it is possible to fold the vehicle to obtain a significant reduction in its height and length; this makes the vehicle portable in practically any other vehicle; the four-wheeled vehicle according to the invention is a light single-seat means of transport and is easy to drive, versatile, and can be used without harming the environment at any time and in any place.