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Bus to charge on the move

By Jo In-hye | 기사입력 2021/07/17 [10:35]

Bus to charge on the move

By Jo In-hye | 입력 : 2021/07/17 [10:35]

 ▲ A bus is running while recharging the batteries in Sejong and Dajeon.


According to the Guardian in the UK, electric rails, which recharge the batteries of vehicles while driving on it, have been embedded in public roads in Sweden. We no longer have to stop by EV (Electric Vehicle) charging stations and we can enhance the battery capacity of our cars more comfortably. 

 

Also, in Korea, an On-Line Electric Vehicle (OLEV) that applies this technology is expected to run on the roads in Sejong and Dajeon from July this year. The OLEV bus, developed by the KAIST University, is designed to automatically charge itself as it drives over the electrified roads. “It’s quite remarkable that we succeeded with the OLEV project so that our buses are offering transportation service to passengers,” said Professor Cho Dong-ho who led the team in KAIST. He also added that the 12km route is the first of its kind in the world.  It is certainly a turning point for the OLEV to be widely accepted as a form of mass transportation.

 

For the OLEV buses, a device is installed on the bottom of the vehicle, which receives power from the road. Electric cables installed under the road are used to generate electromagnetic fields which are picked up by a coil inside the device and converted into electricity. Researchers mention that power strips only need to be placed under 5-15% of the road, meaning that only certain sections need to be dug up and replaced. Smaller batteries also reduce the weight of the vehicles naturally leading to the reduction of carbon dioxide emission.

 

Although the OLEV project is the first to power vehicles on the move, there are other inductive charging projects taking place in some countries including Norway and Italy. 

 

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