Electric Motor and Generator Coupling for Vehicle Retrofit
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Solution Overview
Problem
Existing engine-powered vehicles require significant modifications to convert to non-engine powered vehicles, such as electric vehicles, which is costly and inefficient, especially when aiming to reduce emissions.
Innovation Solution
A vehicle system that includes an electric motor coupled with a generator or alternator to generate electric energy, which powers traction motors to propel the vehicle, allowing for the retrofitting of existing vehicles to electric propulsion without the need for new propulsion components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If an engine-powered vehicle is converted to a non-engine powered electric vehicle, then emissions are reduced, but significant modifications and component replacements are required
Solution Approach 1:
The electric motor is designed to perform multiple functions: it directly powers the vehicle through the drivetrain and simultaneously drives the generator/alternator to produce electrical energy. This multi-functionality reduces the need for separate propulsion components, thereby reducing modification complexity while achieving emission reduction goals
Solution Approach 2:
The generator/alternator acts as an intermediary component that converts mechanical energy from the electric motor into electrical energy. This intermediary mechanism allows the vehicle to utilize existing electrical system components while transitioning from engine to electric power, reducing the overall modification burden
2Object-generated harmful factors
If an engine is removed and replaced with an electric motor coupled to generator/alternator, then emissions are eliminated, but conversion cost increases
Solution Approach 1:
The electric motor serves dual purposes as both the propulsion source and the prime mover for the generator/alternator. This eliminates the need for separate engine and generator components, reducing overall conversion cost while achieving emission elimination
Solution Approach 2:
The system recovers and utilizes existing electrical system components (generator/alternator, electrical wiring, battery systems) that were originally designed for engine-powered vehicles. By recovering these existing components and adapting them to work with the electric motor, conversion costs are reduced
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
Enables the conversion of existing vehicles to electric propulsion with minimal additional cost and complexity, reducing emissions while utilizing existing mechanical and electrical connections.
Implementation Method 1
one or more of a generator or an alternator coupled with the electric motor and configured to generate electric energy from rotation created by the electric motor
Data Source
AI summary
A vehicle system includes an electric motor and one or more of a generator or an alternator coupled with the electric motor and configured to generate electric energy from rotation created by the electric motor. The generator or alternator is configured to power one or more traction motors to propel the vehicle system. The electric motor may replace a fuel engine of the vehicle system.