Parallel Cable Roadway Charging for Lower-Cost EV Wireless Power
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Solution Overview
Problem
Existing road-based wireless charging systems for electric vehicles, particularly those using embedded electrical coils, face inefficiencies and high installation costs, making them unsuitable for widespread adoption, especially in countries without strong central management initiatives.
Innovation Solution
The implementation of a mobile charging system utilizing parallel cable transmission lines embedded within or placed atop roadways, featuring a power supply line, a controller to modulate power, and sensors to monitor electromagnetic and electric properties, allowing for efficient and scalable wireless charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If embedded electrical coils are used for wireless charging, then wireless charging function is achieved, but installation cost and system complexity increase
Solution Approach 1:
The patent replaces the mechanical embedding of electrical coils in the road surface with an inductive coupling system using parallel conductive cables. Instead of directly embedding complex coil assemblies, the system uses simpler parallel cables that generate electromagnetic fields for wireless power transfer, reducing installation complexity while maintaining wireless charging functionality
Solution Approach 2:
The invention extracts the essential function of wireless power transfer from the complex embedded coil system and implements it using a simplified parallel cable configuration. The core inductive coupling mechanism is separated from the road embedding complexity, allowing the cables to be installed in a less invasive manner while achieving the same wireless charging effect
2Reliability
If embedded electrical coils are used for wireless charging, then wireless charging function is achieved, but installation cost increases
Solution Approach 1:
The patent employs relatively inexpensive parallel conductive cables instead of costly embedded electrical coils. The cable-based system uses simpler, more affordable components that can be installed and replaced more easily, significantly reducing the overall installation cost while maintaining the wireless charging capability
Solution Approach 2:
By substituting the mechanical embedding of expensive electrical coils with a simpler cable-based inductive system, the patent achieves wireless charging at a lower cost. The parallel cable configuration requires less complex infrastructure and materials, directly reducing installation expenses
3Ease of manufacture
If parallel cable transmission lines are used, then installation cost and complexity are reduced, but power transmission efficiency may be affected
Solution Approach 1:
The patent optimizes power transmission efficiency in the parallel cable system by carefully controlling electrical parameters such as current, voltage, and frequency. The system adjusts these parameters to maximize inductive coupling between the parallel cables and the vehicle's receiving coil, ensuring efficient power transfer despite the simplified cable-based infrastructure
Solution Approach 2:
The system incorporates feedback mechanisms to monitor and adjust power transmission in real-time. By detecting the coupling conditions between the parallel cables and the vehicle receiver, the system dynamically optimizes transmission parameters to maintain high efficiency, compensating for any losses introduced by the cable-based approach
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 stable and efficient mobile electric vehicle charging system, enabling longer trips without refueling, and offers a more cost-effective and scalable alternative to traditional embedded coil systems.
Implementation Method 1
wireless charging systems utilizing parallel cable transmission lines
Implementation Method 2
controller configured to modulate an amount of power supplied to the at least one cable loop
Implementation Method 3
sensor configured to produce sensor data corresponding to an electromagnetic environment around the at least one cable loop and/or an electric property of the at least one cable loop
Data Source
AI summary
A parallel transmission line system is embedded in, laid atop, or suspended above a roadway to provide a mobile charging system for vehicles, including electric vehicles and drones. The parallel cable transmission line system includes a plurality of parallel line segments able to be individually modified with respect to amount of power supplied to each segment. The parallel transmission line system is configured to deliver power to many cars for a given line segment, which consequently results in reduced power per car. Because of this, the parallel transmission line system is able to operate independently of communications with the vehicles themselves, though the system is able to be optionally integrated with a V2X communication system.