Turbo-Generator Dynamic Recharge for Extended EV Range
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Solution Overview
Problem
Electric vehicle manufacturers face challenges such as limited range, high costs, and inadequate fast charging infrastructure, which hinder the adoption of battery-electric technology. Additionally, existing electric power systems are inefficient in maintaining battery charge for extended durations.
Innovation Solution
A dynamic recharge system (DRS) that integrates a generator charging system, capable of providing direct power to EV motors and auxiliary loads when the battery is fully charged. This system utilizes a turbo-generator assembly with a compressor and turbine, coupled with a generator, to mechanically induce an electric current, optimizing speed and voltage output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If battery-electric technology is used in electric vehicles, then environmental friendliness and operating costs are improved, but range is limited and infrastructure availability deteriorates
Solution Approach 1:
The patent combines a turbine engine system with an electric motor system into a hybrid powertrain. The turbine engine (compressor-turbine assembly) generates mechanical power that drives both the vehicle and a generator, while the electric motor provides additional propulsion. This merging allows the vehicle to extend its operational range beyond battery-only limitations by utilizing the turbine engine as an additional power source during extended trips or when rapid refueling is needed.
2Ease of operation
If fast charging infrastructure is expanded, then charging availability is improved, but infrastructure cost and deployment complexity worsen
Solution Approach 1:
The hybrid powertrain system provides a degree of self-service by carrying its own fuel source (the turbine engine with fuel injection system) rather than relying entirely on external charging infrastructure. The turbine engine can be refueled with conventional fuels at existing fuel stations, which are far more widely distributed than electric charging stations. This reduces dependency on specialized fast-charging infrastructure while maintaining vehicle operability.
3Duration of action of moving object
If battery capacity is increased to extend range, then range is improved, but vehicle cost and weight worsen
Solution Approach 1:
The turbine engine system serves multiple functions: it provides direct mechanical propulsion through the driveshaft, generates electrical power through the generator for battery charging, and can operate independently or in conjunction with the electric motor. This multi-functionality allows the vehicle to achieve extended range without proportionally increasing battery capacity, as the turbine engine acts as a range-extending power source that reduces the required battery size and associated weight.
4Power
If turbine speed is increased to generate more power, then power output is improved, but heat generation and cooling requirements worsen
Solution Approach 1:
The patent converts the waste heat generated by the turbine engine into a useful resource. The exhaust heat from the turbine is captured and used to heat the coolant that circulates through the electric motor and battery pack, providing thermal management and cooling without requiring additional energy input. This heat recovery system transforms the harmful heat byproduct into a beneficial cooling source, reducing the overall thermal management burden.
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
The DRS effectively extends the range of electric vehicles by providing additional power through regenerative braking, reduces heat generation and cooling requirements, and enhances battery charging efficiency, thereby addressing the limitations of existing electric power systems.
Implementation Method 1
This system utilizes a turbo-generator assembly with a compressor and turbine, coupled with a generator, to mechanically induce an electric current
Data Source
AI summary
Systems and methods involving dynamic recharge features and functionality for electric vehicles and other applications are disclosed. In one example, an illustrative electro-mechanical power system may comprise an electric vehicle (EV) motor that drives a shaft, an EV battery module coupled to the EV motor, and a dynamic recharge system coupled to the EV battery module, wherein the DRS includes an ambient air intake, a turbo coupled to the air intake and configured to create power that is used to charge the EV battery module, and a generator assembly. Further, the generator assembly may include a generator and a generator control module, wherein the generator includes a rotor coupled to the turbo, and the generator control module includes control electronics that manage and provide the electrical energy as an output to the EV battery module and/or the EV motor. Other embodiments for differing applications are also disclosed.