Modular Steerable Axles Transaxle Assembly
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Solution Overview
Problem
Existing transaxle systems lack efficient and modular designs for steerable axles, making assembly complex, increasing labor and tooling costs, and compromising assembly accuracy and product quality.
Innovation Solution
A modular steerable axles transaxle assembly with unique pivotable knuckle assemblies and integral structural cross-members that can be pre-assembled and easily attached to vehicle frames, allowing for versatile conversion across different transmission types and facilitating easy servicing without removing the knuckle assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional transaxle systems are used without modular design, then assembly complexity increases and labor costs increase, but customization and adaptability are limited
Solution Approach 1:
The transaxle assembly is divided into modular components including pivotable knuckle assemblies, transmission units, and mounting flanges that can be independently manufactured and assembled. This segmentation enables pre-assembly of subcomponents, reducing final assembly complexity and labor requirements while maintaining adaptability across different vehicle configurations
Solution Approach 2:
The mounting flange design provides universal attachment capabilities that can interface with various vehicle frame configurations. The same basic transaxle assembly can be adapted to different vehicle types (lawn mowers, utility vehicles, etc.) through the versatile mounting interface, eliminating the need for completely different assembly processes for each application
2Ease of manufacture
If non-modular transaxle designs are used, then labor and tooling costs increase, but design versatility across product platforms is reduced
Solution Approach 1:
Pivotable knuckle assemblies and mounting flanges are pre-assembled as complete subunits before final installation. This preliminary assembly of standardized components reduces labor costs during final installation while the modular nature allows these same pre-assembled units to be adapted across different product platforms and vehicle configurations
3Ease of repair
If integrated transaxle-knuckle assemblies are used, then transmission removal for servicing becomes difficult, but structural reinforcement is achieved
Solution Approach 1:
The design segments the connection between transmission and vehicle frame through a standardized mounting flange interface. This allows the transmission to be removed independently from the knuckle assemblies by detaching only the mounting flange connections, facilitating easy servicing while the knuckle assemblies remain integrated with the frame for structural reinforcement
Data Source
AI summary
A vehicle is provided with a first transmission linked to separate first and second pivotable knuckle assemblies. The first and second pivotable knuckle assemblies can be independently steered and include axles driven by the transmission. Each axle drives a wheel of the vehicle. The vehicle includes separate third and fourth pivotable knuckle assemblies. The third and fourth pivotable knuckle assemblies can be independently steered and include axles.