Rear-Steered Electric Two-Wheeler With Low-Center Drive Layout
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Solution Overview
Problem
Existing personal vehicles such as scooters, mopeds, and subcompact cars are often costly, mechanically complex, and require significant maintenance, while also consuming space for storage. Additionally, they are subject to stringent regulations and insurance requirements, which increase their operational costs and complexity.
Innovation Solution
A novel two-wheeled personal vehicle with a rear wheel steering system that can be reversed to a front wheel system, featuring a low center-of-mass drive construction and one-handed operation via a steering handle with integrated throttle and brake controls. The vehicle is designed to be electrically powered, compact, and easy to store.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional personal vehicles (scooters, mopeds, subcompact cars) are used, then transportation function is provided, but device complexity and maintenance requirements increase
Solution Approach 1:
The vehicle is divided into modular components: a removable battery pack, separate motor assembly, and detachable body panels. This segmentation allows independent replacement and maintenance of each module, reducing overall system complexity and making maintenance simpler and more cost-effective.
Solution Approach 2:
The battery pack is extracted as a separate removable module from the vehicle chassis. This extraction allows the battery to be easily replaced, charged externally, and maintained independently from the rest of the vehicle system, significantly reducing maintenance complexity for the primary vehicle structure.
2Volume of moving object
If conventional personal vehicles are used, then transportation capability is achieved, but storage space requirements increase
Solution Approach 1:
The vehicle body is segmented into detachable panels and components that can be folded or removed. This allows the vehicle to be disassembled into compact sections for easy storage in small spaces, while maintaining full size and functionality when assembled for transportation.
Solution Approach 2:
The vehicle incorporates collapsible frame elements and adjustable components that can dynamically change from a full-size configuration for transportation to a compact configuration for storage, adapting to different spatial requirements.
3Adaptability or versatility
If regulated personal vehicles are used, then transportation function is provided, but operational costs increase due to licensure and insurance
Solution Approach 1:
The vehicle's operational parameters (speed, power output, classification) are designed to fall below regulatory thresholds that would require licensure, insurance, or formal registration. By operating in an unregulated parameter space, the vehicle maintains transportation functionality while avoiding associated costs.
4Ease of operation
If rear wheel steering with low center-of-mass drive construction is implemented, then stability and ease of operation are improved, but device complexity increases
Solution Approach 1:
Instead of the conventional front-wheel steering arrangement, the patent implements rear-wheel steering with the drive motor positioned at the low center of mass. This inversion of the traditional configuration provides inherent stability through the low center of gravity while the rear steering mechanism simplifies the overall steering geometry and reduces mechanical complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The vehicle provides a simple, cost-effective, and efficient means of personal transportation, offering ease of operation and storage while reducing maintenance and regulatory burdens. Its compact design and versatile steering system enhance usability and maneuverability in urban environments.
Implementation Method 1
The rear wheel may be driven by an electric motor
Implementation Method 2
A battery is secured in a weatherproof enclosure to provide electric power to a direct drive DC motor
Data Source
AI summary
This specification describes a two-wheeled vehicle that is electrically driven and steerable by operation of a rear wheel steering mechanism. The vehicle utilizes a direct drive motor to drive one wheel and may be operated in either direction as desired by a user.