World’s first wireless electric bus that are recharged right from the road, developed by researchers from the Korea Advanced Institute of Science and Technology (KAIST).
The Online Electric Vehicles (OLEV) receive power wirelessly from electrical cables underneath the surface of the street using Shaped Magnetic Field in Resonance (SMFIR) technology.
The City of Gumi in South Korea, is now providing its citizens with OLEV public transportation services and it is the first time globally.
“OLEV is a groundbreaking technology that accelerates the development of purely electric vehicles as a viable option for future transportation systems, be they personal vehicles or public transit. This is accomplished by solving technological issues that limit the commercialization of electric vehicles such as price, weight, volume, driving distance, and lack of charging infrastructure.
OLEV receives power wirelessly through the application of the “Shaped Magnetic Field in Resonance (SMFIR)” technology. SMFIR is a new technology introduced by KAIST that enables electric vehicles to transfer electricity wirelessly from the road surface while moving. Power comes from the electrical cables buried under the surface of the road, creating magnetic fields. There is a receiving device installed on the underbody of the OLEV that converts these fields into electricity. The length of power strips installed under the road is generally 5%-15% of the entire road, requiring only a few sections of the road to be rebuilt with the embedded cables.”