Article’s

Wireless charging road system for electric vehicles

Naresh Ganesh Botalawar

(08 – 2026)

DOI:

 

This paper presents a Wireless Charging Road System for Electric Vehicles based on Dynamic Wireless Power Transfer (DWPT) technology to overcome the limitations of conventional stationary charging infrastructure. The proposed system uses segmented transmitter coils embedded beneath the road pavement, an 85 kHz SiC MOSFET high-frequency inverter, and a vehicle-mounted receiver consisting of a DD-geometry coil, synchronous rectifier, and DC-DC converter connected to the vehicle battery management system. A real-time Vehicle-to-Infrastructure (V2I) communication and control system manages vehicle identification, coil segment activation, power negotiation, and safety monitoring. Foreign Object Detection (FOD) and Living Object Protection (LOP) systems provide additional safety during operation. The prototype achieved 92.4% coil-to-coil efficiency and 83.6% end-to-end grid-to-battery efficiency on a 200-metre test corridor at vehicle speeds of 30–120 km/h. The system enables continuous charging while the vehicle is moving, helping to reduce range anxiety and potentially reducing the required battery capacity by 40–60%.

 

 

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