Trike Air Spring Linearization for Independent Suspension
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle suspension systems for three-wheeled motorcycles lack independent suspension and effective shock-absorbing mechanisms, particularly when converting conventional two-wheel motorcycles into three-wheel trikes, with prior art focusing on unitary, rigid rear axle assemblies and not addressing the need for better shock absorption in independent suspension systems.
Innovation Solution
The implementation of a rear frame/axel assembly with a differential supported on a frame assembly, featuring two half-shaft assemblies pivotally connected to the differential, and an air spring linearization assembly with rotating linkages that maintain a substantially linear axis of compression, along with a vibration dampening mechanism using NVH bushings and elastomeric materials to absorb vibrations and adjust toe/camber settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a unitary rigid rear axle assembly is used, then structural simplicity is improved, but shock absorption capability deteriorates
Solution Approach 1:
The rigid rear axle assembly is segmented into two independent half-shaft assemblies, each capable of independent suspension movement. This segmentation allows each half-shaft to independently absorb shocks and vibrations from the road surface, improving shock absorption capability while maintaining reasonable structural complexity through modular design.
2Object-affected harmful factors
If independent suspension with air springs is implemented, then shock absorption capability is improved, but device complexity increases
Solution Approach 1:
A rotating linkage mechanism is introduced as an intermediary component between the air spring and the half-shaft assembly. This linkage maintains a substantially linear axis of compression for the air spring during suspension movement, ensuring optimal shock absorption performance while managing the complexity through a well-defined mechanical relationship.
Solution Approach 2:
The air spring assembly serves multiple functions: it provides primary shock absorption, maintains wheel alignment through the rotating linkage, and accommodates independent suspension movement. This multi-functionality reduces the need for additional separate components, helping to manage overall device complexity.
3Object-affected harmful factors
If NVH bushings and elastomeric materials are added for vibration dampening, then vibration reduction is improved, but manufacturing complexity increases
Solution Approach 1:
NVH (Noise, Vibration, and Harshness) bushings and elastomeric materials are integrated into the suspension assembly as composite damping elements. These materials are strategically positioned at mounting points and connection joints to absorb vibrations and reduce noise, improving vibration reduction performance while incorporating them as standard components in the manufacturing process.
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
This configuration provides improved shock absorption and vibration reduction, allowing for better handling and stability on uneven surfaces while enabling independent suspension and adjustment of wheel positions, enhancing the overall ride quality and durability of the trike.
Implementation Method 1
an air spring linearization assembly with rotating linkages that maintain a substantially linear axis of compression
Implementation Method 2
a vibration dampening mechanism using NVH bushings and elastomeric materials to absorb vibrations
Data Source
AI summary
A suspension system for a motor vehicle including a frame assembly; a differential supported on the frame assembly; two half shaft assemblies engaging the differential and being pivotally connected to the frame assembly; and at least one air spring operatively positioned between the frame assembly and each of the half shaft assemblies. The air springs are connected to a rotating linkage which maintains a substantially linear axis of compression for the air springs.