Smart Road Wireless V2G Power Transfer for Moving EVs

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Solution Overview

Problem

Current vehicle-to-grid (V2G) technology only allows power transfer from electric vehicles when they are parked, limiting the potential for energy contribution to the grid while vehicles are in motion.

Innovation Solution

Implementing a smart road system with wireless power transfer components that enable electric vehicles to transfer excess battery power back to the grid while in motion, using a network of power lines and wireless modules to facilitate power exchange between vehicles and the grid, ensuring proper isolation to avoid induction interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If V2G technology allows power transfer only when vehicles are parked, then the system complexity is reduced and reliability is improved, but the productivity of power transfer is limited and energy utilization is reduced

Engineering Contradiction:
Improvepower transfer productivityVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent transforms the static V2G power transfer system into a dynamic one by enabling power transfer from moving vehicles through wireless communication. The system adapts to the motion state of vehicles, allowing continuous power transfer regardless of vehicle position or speed, thereby significantly improving power transfer productivity without requiring infrastructure at parking locations.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent replaces the mechanical connection system (physical plugging/unplugging at parking spots) with a wireless power transfer system using electromagnetic fields. This substitution eliminates the need for physical contact points, enabling power transfer from moving vehicles and reducing system complexity associated with mechanical connectors and parking infrastructure.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If V2G technology requires designated parking spots for power transfer, then the reliability of power transfer is improved, but the loss of time and productivity are increased

Engineering Contradiction:
Improveenergy contribution rateVSAvoidparking time requirement
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent enables continuous power transfer from vehicles throughout their entire journey rather than only during stationary parking periods. The wireless power transfer system maintains continuous communication and energy exchange between moving vehicles and the grid, maximizing the duration and frequency of power contribution without requiring vehicles to stop or park.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The patent introduces wireless communication as an intermediary mechanism that enables power transfer without direct physical contact or stationary positioning. This intermediary system allows energy exchange to occur through the electromagnetic field while vehicles are in motion, eliminating the time loss associated with parking and connecting/disconnecting physical chargers.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If wireless power transfer components are deployed on smart roads, then the adaptability and productivity of V2G are improved, but the device complexity and manufacturing cost increase

Engineering Contradiction:
ImproveV2G network adaptabilityVSAvoidmanufacturing ease
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent designs the wireless power transfer components to serve multiple functions: enabling V2G power transfer from moving vehicles, providing wireless communication infrastructure, and potentially supporting other smart road applications. This multi-functionality increases adaptability and versatility while spreading manufacturing costs across broader utility, making the system more economically viable.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent divides the smart road infrastructure into modular wireless power transfer components that can be independently deployed, tested, and manufactured. This segmentation allows for easier manufacturing and deployment by breaking down the complex system into manageable units that can be produced using existing wireless communication technologies, thereby improving ease of manufacture while maintaining high adaptability.

Inventive Principle:
Principle #1Segmentation

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 continuous power transfer from moving electric vehicles to the grid, optimizing energy distribution and utilization by allowing vehicles to participate in the V2G network without the need for designated parking spots, enhancing energy balancing and reducing idle energy usage.

Implementation Method 1

a first group of vehicles (102) transfers power to the power grid (120)... The vehicles (106, 108) do not need power and do not send power to the power grid (120) through the smart road (110) with induction wireless transfer

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

a smart road (110) that has a mechanism to receive power from vehicles which are in motion on the smart road and transfer the same received power back to the power grid (120)

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS20240399921A1Power transfer from vehicle-in-motion to power grid
Publication Date: 2024.12.05 INTERNATIONAL BUSINESS MACHINE CORPORATION
  • US20240399921A1 patent drawing
  • US20240399921A1 patent drawing
  • US20240399921A1 patent drawing

AI summary

A power transfer system is presented including a smart road having a first power line, a second power line, and a plurality of wireless smart road power receive components, a plurality of electric vehicles (EVs) traveling on the smart road, each of the EVs having a wireless EV power transfer component and a wireless EV power receive component, and a power grid electrically connected to the first and second power lines of the smart road to receive power from the plurality of EVs as the plurality of EVs travel on the smart road.