Ultra Capacitor Based EV Charging Prototype

Abstract— The increasing adoption of electric vehicles (EVs) has created a demand for efficient and rapid charging technologies. This project presents an ultra capacitor-based EC wireless charging system, where an EV or robotic system can be charged wirelessly while in motion. The system utilizes transmitter (TX) and receiver (RX) coils for energy transfer, enhanced by an ultra-capacitor for fast charging. The TX unit consists of a solar-powered TX coil, which transmits power wirelessly. The RX unit, integrated with an Arduino-controlled receiver circuit, captures the transmitted energy to charge the ultra-capacitor. An LCD display is used for real-time monitoring of charging status, while motors drive the robot autonomously. The ultra-capacitor enables rapid energy storage and discharge, ensuring quick charging and efficient power delivery to the EV. This project demonstrates a significant step toward contactless and high-speed energy transfer in electric mobility applications, enhancing convenience, efficiency, and sustainability. With the accelerating adoption of Electric Vehicles (EVs) and autonomous robotic systems, the demand for efficient, sustainable, and rapid charging technologies has never been greater. Conventional plug-in charging methods are often slow, inconvenient, and unsuitable for moving systems. This project introduces a novel ultra-capacitor-based EC (Energy Capture) wireless charging system that enables dynamic, contactless energy transfer to EVs or mobile robots while in motion. The system is composed of a solar-powered transmitter (TX) coil that wirelessly transmits energy to a receiver (RX) coil mounted on the moving platform. The RX coil is connected to an ultra-capacitor-based energy storage unit, which offers high-speed charging and discharging, superior to conventional battery systems. The Arduino microcontroller governs the energy transfer process, monitors key system parameters, and displays the charging status on an LCD module. The robotic unit, driven by DC motors, simulates the motion of an EV, demonstrating the feasibility of in-motion wireless charging. The incorporation of ultra-capacitors significantly improves the system’s response time, energy efficiency, and lifecycle durability. This project is a step toward smart, eco-friendly energy systems, offering a practical solution for future mobility applications such as highways with embedded charging lanes, automated logistics robots, and urban EV fleets. The outcome promotes reduced charging downtime, improved energy utilization, and greater operational flexibility.