CONTACTLESS METHOD OF POWERING ELECTRIC VEHICLES Russian patent published in 2014 - IPC B60L9/00 

FIELD: electricity.

SUBSTANCE: mains electric power is converted by frequency and voltage stepping up; current and voltage resonance is generated in the transmitting supply system at the natural resonance frequency of the electric circuit of the vehicle. Electric power is transmitted in resonance mode through an insulated high-frequency feeder to a transmitting coil (9), situated in the road surface and made in form of a flat rectangular single-layer coil of insulated wire. First and second receiving coils (14) and (21) are mounted on the electric vehicle and are in form of helical coils arranged around two rubber wheels. A third rectangular receiving coil (24) is attached to the bottom of the body of the vehicle and placed parallel to the road surface. Electromagnetic energy from the receiving coils is transmitted through a rectifier to an electric energy storage in which electric energy is converted to dc or ac energy and transmitted to a power supply and control unit (29) for the electric vehicle for powering drive motors (30). Traction motors are mounted directly in wheels in form of motorised wheels or on the chassis of the electric vehicle.

EFFECT: high reliability and electric safety and high efficiency.

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