Wireless Inductive Power Supply of Electric Vehicles while Driving Along the Route

The concept of an electrified road (E|ROAD) is based on electrically powered vehicles, and can overcome the problem of range limitation with minimal, cost-effective energy storage. A moving Field Inductive Power Transfer (MFIPT) system for supplying power to electric vehicles while driving along the route using primary coils arranged below the pavement is described. These primary coils transmit the energy via an alternating magnetic field to a secondary coil fixed to the vehicle below its floor. Only those primary coils located below the secondary coil of a vehicle are excited. By switching the compensation capacitors between the primary coils, the magnetic or electrical energy stored in the primary coils and compensation capacitors is passed on in the direction of travel, thereby achieving a high level of efficiency.