Mobile Wireless Power Transfer for Electric Vehicles
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Solution Overview
Problem
The lack of comprehensive and convenient EV battery charging infrastructure limits the widespread adoption of electric vehicles, particularly in situations where permanent facilities are unavailable or during emergencies.
Innovation Solution
A mobile electric charging station (MECS) that combines plug-in and wireless power transfer capabilities, powered by a grid, solar panels, batteries, and a generator, with a deployable wireless power transmitter and payment system, enabling both static and dynamic charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a mobile electric charging station combines multiple power sources and charging methods, then charging flexibility and versatility are improved, but device complexity increases
Solution Approach 1:
The patent combines multiple power sources (grid connection, solar panels, battery storage, generator) and two charging methods (plug-in and wireless power transfer) into a single mobile charging station system. This merging allows the system to provide comprehensive charging solutions while managing complexity through integrated control architecture.
Solution Approach 2:
The mobile charging station is designed with multi-functional capabilities including grid-to-vehicle charging, vehicle-to-grid power supply, wireless power transfer, and emergency backup functions. The system can adapt to different charging scenarios and vehicle types, providing universal charging services.
2Ease of operation
If wireless power transfer is added to the charging station, then charging convenience is improved, but power transfer efficiency may be compromised
Solution Approach 1:
The wireless power transfer system incorporates dynamic adjustment capabilities through a supporting rail that can extend, contract, and pivot to control the position of the WPT transmitter. The transmitter includes wheels for movement support and a mechanism to raise and lower, optimizing electromagnetic coupling with the receiver during dynamic charging operations.
Solution Approach 2:
The patent introduces an intermediary control system that manages both plug-in and wireless power transfer charging methods. The control system includes power stabilizer, converter, and compensator components that optimize power transfer efficiency while maintaining charging convenience through automated control.
3Adaptability or versatility
If the WPT transmitter is made deployable with movement capabilities, then dynamic charging is enabled, but mechanical complexity increases
Solution Approach 1:
The WPT transmitter is designed as a separate deployable module that can be extended from the mobile charging station. The supporting rail structure is segmented into extendable and pivotable sections, allowing independent adjustment of each component to achieve optimal positioning without requiring complex integrated mechanisms.
Solution Approach 2:
The patent incorporates wheels on the supporting rail and transmitter assembly to replace complex mechanical mounting systems. This allows the WPT transmitter to move and position itself automatically, reducing the need for complex manual adjustment mechanisms while enabling dynamic charging capabilities.
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
Provides flexible and efficient charging solutions for electric vehicles both at rest and in motion, addressing the infrastructure gap and emergency power needs while optimizing power transfer efficiency and convenience.
Implementation Method 1
The WPT transmitter can also have a mechanism that raises and lowers to optimize electromagnetic coupling with the WPT receiver of an EV
Implementation Method 2
The electric power source can include power from a grid, a solar panel array mounted on the MECS, a solar panel array that can be deployed from the MECS, batteries connected to or within the MECS
Data Source
AI summary
Mobile power transfer methods and apparatuses for charging electric vehicles both statically and dynamically are provided. A mobile electric charging station can include a chassis, a power source connected to the chassis, a power control system connected to the chassis and the power source, and a wireless power transmitter deployment structure connected to the chassis and the power control system. The power source can be one more of an electric grid connection, a battery, a generator, and solar panels.