Self-Stabilizing Vehicle With Articulated Frame
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Solution Overview
Problem
Two-wheeled or inline vehicles are inherently unstable at low speeds due to the challenges and limitations of gyro-based stabilization systems, which are costly, complex, and energy inefficient, and can induce instability rather than mitigate it.
Innovation Solution
A system and method employing an articulated frame with a hinge assembly that adjusts in real-time based on operational parameters, such as inertial data and speed, to maintain the center of mass of the vehicle within a stable position, allowing for self-stabilization even at low speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If gyro-based stabilization systems are installed in two-wheeled vehicles, then vehicle stability is improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent extracts the stabilization function from complex gyro-based systems and implements it through a simpler articulated frame mechanism with hinge assembly, eliminating the need for costly and complex gyroscopic components while maintaining stability functionality
Solution Approach 2:
The patent replaces the mechanical gyro-based stabilization system with an articulated frame system that uses passive mechanical articulation and active hinge control, substituting complex rotating mass mechanics with a more manageable hinge-driven frame adjustment mechanism
2Stability of the object's composition
If gyro-based stabilization systems operate continuously to maintain stability, then vehicle stability is improved, but energy consumption increases
Solution Approach 1:
The articulated frame system dynamically adjusts the hinge assembly position based on real-time vehicle operational parameters such as speed and acceleration, allowing the stabilization mechanism to be active only when needed rather than operating continuously
Solution Approach 2:
The system incorporates feedback from speed sensors and inertial measurement units that continuously monitor vehicle state and automatically adjust hinge assembly positioning, enabling responsive stabilization that consumes energy only when correction is required
3Stability of the object's composition
If gyro-based stabilization systems are used at high speeds, then vehicle stability is improved, but the system becomes less effective and may induce instabilities
Solution Approach 1:
The hinge assembly system is designed to adapt its operation based on vehicle speed, providing active stabilization when needed at lower speeds and allowing passive mechanical stability to dominate at higher speeds where gyroscopic effects of the wheels themselves provide sufficient stabilization
4Adaptability or versatility
If articulated frame with hinge assembly is used for self-stabilization, then vehicle maneuverability is improved, but device complexity increases
Solution Approach 1:
The vehicle frame is segmented into multiple articulated portions connected by hinge assemblies, allowing independent movement and positioning of frame sections to enable diverse maneuvers such as zero-radius turns and diagonal motion while keeping each individual hinge mechanism relatively simple
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 articulated frame system effectively stabilizes two-wheeled or inline vehicles at low speeds, reducing the risk of tipping and enhancing maneuverability, including the ability to perform zero-radius turns and move diagonally or sideways.
Implementation Method 1
the hinge assembly may drive the second frame portion to a position such that the mass of the second frame portion (including the mass of the operator, for instance) substantially balances the mass of the first frame portion—i.e., the center of mass of the vehicle components (including the operator) remains in a position such that the vehicle does not topple over
Data Source
AI summary
A system and method of stabilizing a vehicle are disclosed. In accordance with one aspect, a self-stabilizing vehicle having an articulated frame may generally comprise: a first frame portion coupled to one or more wheels; an second frame portion to support a load of the vehicle; a hinge assembly operably coupling the first frame portion and the second frame portion; and a control unit to drive the hinge assembly causing the second frame portion to rotate (relative to the first frame portion) about one or more hinge axes as a function of inertial data and speed data, and optionally steering control input signals. In some two-wheeled applications, both wheels are steerable; additionally, both wheels may be driven. Alternative vehicles are disclosed having one wheel and three wheels.