Three-Wheeled Vehicle Profile Adjustment for Stability
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Solution Overview
Problem
Current transportation methods, such as automobiles and bicycles, are costly, environmentally harmful, and lack stability, protection, and cargo capacity, while electric bicycles offer limited comfort and protection, failing to combine the benefits of cars and bicycles effectively.
Innovation Solution
A three-wheeled vehicle with two forward wheels and one rear wheel, featuring a profile adjustment device for aerodynamic stability, a protective shell, automatic tilt control, and power assist options, allowing for efficient, stable, and protected transportation with cargo capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a two-wheeled vehicle such as a bicycle is used, then the cost of operation is reduced and physical exercise is provided, but the rider must maintain balance and provides no protection from elements or other vehicles
Solution Approach 1:
The vehicle divides the support function across three separate wheels rather than two, with the rear wheel providing stable support and the two front wheels providing steering and balance. This segmentation of the support function eliminates the need for rider balance while maintaining maneuverability.
Solution Approach 2:
The patent introduces a third dimension to the wheel arrangement by positioning the rear wheel at a different location and orientation relative to the two front wheels. This creates a stable triangular base that provides inherent stability without requiring active balance maintenance.
2Ease of operation
If a bicycle is used, then physical exercise is provided and cost is reduced, but there is no protection from weather and elements
Solution Approach 1:
The patent merges the protective shell feature with the three-wheeled vehicle structure, integrating a enclosed cabin that shields occupants from weather and elements while maintaining the vehicle's unique three-wheeled configuration and maneuverability.
3Device complexity
If a three-wheeled vehicle with fixed height is used, then structural simplicity is maintained, but aerodynamic efficiency at high speeds is reduced
Solution Approach 1:
The patent implements a dynamically adjustable height mechanism that allows the vehicle to change its profile based on operating conditions. At high speeds, the vehicle can lower its profile to reduce aerodynamic drag, while at low speeds or during maneuvering, it can raise the profile for better visibility and stability.
Solution Approach 2:
The vehicle's geometric parameter (height) is made variable rather than fixed, allowing optimization of aerodynamic efficiency at high speeds while maintaining structural simplicity through a relatively straightforward adjustment mechanism.
4Use of energy by moving object
If the vehicle height is reduced at high speeds, then aerodynamic drag is reduced and efficiency is increased, but the center of gravity is lowered which affects stability
Solution Approach 1:
The height adjustment mechanism dynamically adapts the vehicle profile based on speed and operating conditions, allowing the system to optimize between aerodynamic efficiency and stability as needed through controlled changes in geometric configuration.
Data Source
AI summary
A three-wheeled vehicle having an arrangement of wheels with two forward wheels and one back wheel and a profile adjustment feature is described. The back wheel may be configured as the steering wheel, and in some cases is the only steering wheel. The two forward wheels are configured essentially parallel with each other and the back wheel is configured essentially centered between and back from the two forward wheels. This arrangement of the wheels provides for a stability that does not require a person to maintain balance to keep the vehicle in an upright position. The profile adjustment feature may automatically adjust the height of the vehicle as a function of vehicle speed. As the vehicle speeds up, the height may be reduce to provide a more stable vehicle that is turned more by tilting the vehicle than by turning the back wheel.