Video: South Korea wireless charging electric bus. Sweden electric road. #IoT #Transportation #smartcity

The Online Electric Vehicles (OLEV) platform developed by South Korea Advanced Institute of Science and Technology (KAIST) has launched a wireless charging electric bus.   It works by electric induction charging and removes the need for the bus to stop for charging while eliminating any tethered cords.   This is a similar technology to wireless charge phones but on a larger scale.  The currently route transports passengers in a 15 mile stretch between Gumi and In-Dong District Station with about 85 percent efficiency charging at 100kW.


The induction plates cover up to 5 to 15 percent of the route and sensors allow the plates to be switched off until a bus approaches.   Advantages to a transportation fixed route allows system designers to plan accordingly allowing buses to sufficiently charge without the need to stop.

This is not, however, the first induction based charging. The United States in Utah, Germany, and Italy have already launched similar systems since 2003 while more recently Netherlands in 2010.

More countries are joining in some hybrid version of an electric road, albeit, not a wireless system.  Sweden has launched their first electric road in 2016 inaugurated June 22 near central Sweden in Gävle where Scania will provide the electric powered, Euro 6-certified, trucks in a partnership towards fossil-free transportation running on biofuel.

All the Scania trucks on the road are hybrid and Euro 6-certified, running on biofuel.

“The electric road is one important milestone on the journey towards fossil-free transport. Scania is committed to the success of this project and is committed to sustainable transport solutions.” — Scania’s head of Research and Development Claes Erixon

The truck receives electrical power from a pantograph power collector that is mounted on the frame behind its cab. The pantographs are in turn connected to overhead power lines that are above the right-hand lane of the road, and the trucks can freely connect to and disconnect from the overhead wires while in motion.  Scania is celebrating this as a key starting milestone for achieving and fossil-free and energy sustainable fleet by 2030.


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