OLEV (ONLINE ELECTRIC VEHICLE)

1. The OLEV works on the principle of inductive charging.
2. An electromagnetic field is used to transfer energy between two objects.
   
3. It works on the new technology developed by KAIST called"SHAPED MAGNETIC FIELD IN RESONANCE (SMIFR)". This technology allows electric vehicles to transfer energy from the road surface while on the move. The power comes from the cables called POWER STRIPS,  buried under the road surface, creating magnetic field. A receiving device installed on the under-body of the OLEV converts this magnetic field into electricity. The length of the power strips installed under the road is generally 5%-15% of the entire road.

   

   spectrum.ieee.org

4. The small battery is the prize-winner. Despite being one-third of the size of normal battery, the bus receives 20kHz and 100kW electricity at 85% efficiency rate while maintaining a 17cm air gap between the under-body of the vehicle and the road surface. 
5. This technology is also looked upon as the solution to problems caused by reducing crude oil deposits.