Modular Electric Traction Assembly for Compact Multi-Axle Integration
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Solution Overview
Problem
Existing traction systems for commercial vehicles, particularly those with internal combustion engines, are not suitable for modern electric drive vehicles, as they require compact and versatile electric traction assemblies to accommodate electric motors and batteries, and are not adaptable to different types of axles.
Innovation Solution
An electric modular traction system comprising at least one electric motor and a mechanical transmission system housed within a framework, which connects to axle shafts and includes a differential and torque/velocity selector mechanisms, allowing for flexible configuration and operation with various axle types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If internal combustion engine drivetrain systems are used in commercial vehicles, then mechanical power transmission is achieved, but space is occupied by drivetrain components that could be used for electric traction assemblies and batteries
Solution Approach 1:
The patent extracts and eliminates the traditional internal combustion engine drivetrain components (engine, transmission, differential housing) from the vehicle architecture. This removal frees up significant space previously occupied by these mechanical systems, allowing the installation of electric traction assemblies and battery packs in the same spatial envelope.
Solution Approach 2:
The patent replaces the mechanical internal combustion engine drivetrain system with an electric motor-based traction system. This substitution eliminates complex mechanical power transmission components while achieving the same functional outcome of delivering power to the wheels, thereby reducing overall system volume and complexity.
2Volume of moving object
If traditional drivetrain systems are replaced with electric traction assemblies, then space is freed up, but adaptability to different types of axles is reduced
Solution Approach 1:
The patent designs the electric traction assembly with universal mounting capabilities that can accommodate different types of axles (front, rear, steer, drive). The system incorporates standardized interface mechanisms and adjustable mounting positions, enabling the same electric traction unit to be adapted to various axle configurations across different vehicle types, thereby maintaining versatility while reducing space requirements.
3Volume of moving object
If compact electric traction assemblies are designed, then space efficiency is improved, but mechanical transmission system integration becomes more difficult
Solution Approach 1:
The patent merges the electric motor, transmission components, and differential into a single integrated electric traction assembly. This consolidation reduces the overall volume by eliminating separate housings and mounting structures while simplifying manufacturing through modular assembly. The integrated design allows the compact unit to be manufactured as a complete module and installed as one assembly, reducing integration complexity despite the compact dimensions.
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 solution provides a compact, versatile, and adaptable electric traction system that can be used in different vehicles, freeing up space previously occupied by mechanical drivetrain components and enabling efficient torque delivery to wheels, while reducing wear and contamination through enclosed mechanical transmission.
Implementation Method 1
an electric motor (2), and a mechanical transmission system (3)... the mechanical torque produced by said at least one electric motor (2)
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
An electric traction module (1) for a vehicle comprising at least one electric motor (2), a first and a second output shaft (4, 5) and a transmission (3) configured to connect said at least one electric motor (2) to at least one of said first and second output shafts (4, 5), the electric traction module (1) further comprising a framework (8) configured to define an internal volume (9), which houses, on the inside, the electric motor (2), the transmission (3) and at least part of the first and second output shafts (4, 5).