Auxiliary Wheel Dynamics for Two-Wheeled Vehicle Turning Stability
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Solution Overview
Problem
Two-wheeled vehicles, such as bicycles and motorcycles, face challenges in maintaining balance during turning, especially for inexperienced drivers, and existing stabilization devices either hinder turning or are ineffective when the vehicle is in motion.
Innovation Solution
The implementation of auxiliary wheels connected to the front wheel via a steering system, with lifting and gap adjusting devices that allow the auxiliary wheels to be spaced apart during straight travel and brought closer to the ground during turning, limiting the inclination of the vehicle body and improving stability by maintaining the same rotational center as the front wheel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If auxiliary wheels are installed to stabilize the two-wheeled vehicle, then stability while parked or traveling straight is improved, but turning stability deteriorates due to continuous friction with the ground and different turning radiuses
Solution Approach 1:
The auxiliary wheels are designed to be movable between a first position (contacting the ground) and a second position (not contacting the ground). The lifting device dynamically adjusts the position of the auxiliary wheels based on the vehicle's operational state, allowing them to contact the ground during straight travel for stability while being lifted during turning to eliminate friction and improve turning stability.
2Stability of the object's composition
If auxiliary wheels are kept in contact with the ground for stability, then vehicle stability is improved, but turning becomes difficult due to friction and different turning radiuses
Solution Approach 1:
The system dynamically adjusts the auxiliary wheel contact status with the ground based on operational requirements. During straight travel, the auxiliary wheels contact the ground to provide stability. During turning, the lifting device raises the auxiliary wheels to eliminate ground friction, simplifying the turning mechanism and improving ease of operation.
3Ease of operation
If auxiliary wheels are lifted away from the ground during travel, then turning ease is improved, but stability function is lost when the vehicle is not traveling
Solution Approach 1:
The lifting device dynamically positions the auxiliary wheels based on the vehicle's travel state. When the vehicle is traveling, the auxiliary wheels are lifted to facilitate easy turning. When the vehicle is stopped or parked, the auxiliary wheels are lowered to contact the ground, providing stability and preventing the vehicle from falling over.
4Device complexity
If auxiliary wheels are fixed in position, then device complexity is reduced, but adaptability to different travel states deteriorates
Solution Approach 1:
The auxiliary wheel system incorporates a lifting device that enables dynamic position adjustment between contacting and non-contacting the ground. This dynamic capability allows the system to adapt to different travel states (straight travel, turning, parked) without requiring multiple separate systems, maintaining reasonable complexity while maximizing versatility.
Data Source
AI summary
A two-wheeled vehicle which includes a two-wheeled vehicle body, a front wheel and a rear wheel respectively rotatably installed at a front and a rear of the two-wheeled vehicle body, and a steering system steering the front wheel is disclosed. The two-wheeled vehicle includes auxiliary wheels connected to the front wheel on both sides of the two-wheeled vehicle body and steered together with the front wheel by the steering system, lifting devices configured to adjust distances of the auxiliary wheels from the ground, and gap adjusting devices configured to adjust lateral gaps of the auxiliary wheels from the two-wheeled vehicle body. The auxiliary wheels are spaced apart from the ground while traveling straight. And an inclination of the two-wheeled vehicle body while turning is limited as one of the auxiliary wheels comes into contact with the ground.