Wireless EV Charging with V2V Support

Abstract

The growing adoption of Electric Vehicles (EVs) has brought new challenges in energy management, charging infrastructure, and efficiency. Traditional plug-in charging systems require manual connection, long charging times, and significant stationary downtime, which limit EV convenience and scalability. To overcome these challenges, this project — “Wireless EV Charging with V2V Support” — proposes an innovative solution that combines wireless power transfer with vehicle-to-vehicle (V2V) energy sharing capabilities. The system employs inductive-coupling-based wireless charging technology, enabling efficient energy transfer without physical connectors. The transmitter coil embedded in the charging pad and the receiver coil installed in the EV operate based on the principle of electromagnetic induction, allowing safe and contactless charging. A microcontroller-based control unit regulates the power flow, monitors charging parameters such as voltage, current, and coil alignment, and ensures system safety through feedback and protection mechanisms. In addition to stationary wireless charging, the system introduces V2V support, which enables one EV with sufficient charge to transfer energy wirelessly to another vehicle in need. This peer-to-peer energy exchange not only extends the operational range of EVs but also minimizes dependency on fixed charging stations. The implementation of communication modules, such as Wi-Fi or Bluetooth, allows vehicles to coordinate charging operations and monitor energy transfer status in real-time. The project demonstrates an effective prototype of a smart, flexible, and sustainable charging ecosystem, suitable for modern urban mobility. It addresses key limitations of wired charging by reducing wear and tear, enhancing user convenience, and improving charging safety under all weather conditions. Moreover, its modular architecture supports future integration with IoT-based monitoring systems, renewable energy sources, and smart grid networks, making it scalable and environmentally friendly.

Introduction

The Wireless EV Charging with Vehicle-to-Vehicle (V2V) Support project aims to transform electric vehicle (EV) charging by combining contactless wireless power transfer (WPT) with the ability for vehicles to share energy directly. Traditional wired chargers are limited by accessibility, cable wear, and dependence on fixed stations. This system overcomes these issues by using electromagnetic induction or resonant coupling: a transmitter coil on the ground transfers energy to a receiver coil in the EV without physical contact.

Key Features:

• Wireless Charging: Allows safe, efficient energy transfer even in adverse conditions.

• V2V Energy Transfer: One EV can wirelessly share energy with another, useful in emergencies or remote locations.

• Smart Communication: Integration with IoT, Wi-Fi, or Bluetooth enables real-time monitoring and control of charging parameters via mobile or web applications.

• Automation & Safety: Eliminates manual plug-in operations, reducing wear and enhancing safety.

Technology Used:

• ESP32 Microcontroller: Central controller managing wireless charging, V2V communication, and real-time monitoring.

• Wireless Power Transfer (WPT) Module: Uses inductive or resonant coupling for efficient contactless charging.

• V2V Communication Module: Enables secure energy sharing between vehicles using wireless protocols.

Applications:

• Public charging stations, residential complexes, office campuses, highways, airports, emergency vehicles, and smart cities.

• Supports both stationary and emergency charging, promoting convenience, sustainability, and grid independence.

Advantages:

• Time-saving and automated charging.

• Enhanced convenience and safety.

• Energy-efficient and cost-effective through smart power management and V2V sharing.

• Scalable for urban, rural, and smart city infrastructures.

Objective:
To develop a smart, efficient, and contactless EV charging system that reduces dependence on wired connections while enabling energy sharing between vehicles, enhancing convenience, reliability, and sustainability.

Literature Context:
The project builds on existing wireless charging technologies and expands their capabilities with V2V energy transfer, addressing limitations of traditional systems and supporting flexible, resilient, and green mobility.

Conclusion

The Wireless Electric Vehicle (EV) Charging System with Vehicle-to-Vehicle (V2V) Support has wide potential for development and practical use in the future. As the demand for electric vehicles continues to grow, there is a need for more efficient, convenient, and reliable charging systems. This project can be further improved in several ways to enhance performance, safety, and energy utilization.

References

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Copyright

Copyright © 2025 Kanchan Sen, Khushi Soni, Pratham Makoriya, Rubana Ali, Shubham Sen, Prof. Anoop Tiwari. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.