Section Roundtrip Shuttle Operation Roundtrip Shuttle Between Campuses Seoul Shuttle Bus from Main Campus OLEV On-campus Shuttle Commute Bus. electric vehicle being developed at KAIST.2 The all-electric car of KAIST, named the On-Line Electric Vehicle (OLEV),. N.P. Suh (), D.H. Cho, C.T. Rim. KAIST. The Online Electric Vehicle (OLEV), developed by KAIST, is an electric vehicle that can be charged while stationary or driving, thus removing.

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The secondary coil uses a thicker variation of the w-shaped cores as ,aist way to make up for the lesser area for the magnetic flux to flow through compared to gen 2. It functions by using a segmented “recharging” road that induces a current in “pick-up” modules on the vehicle. Views Read Edit View history. The system was developed by a Klev company, Conductix-Wampfler, which claims a percent energy-transfer efficiency.

In response to the cost issue of gen 2, the third generation OLEV was developed.

Attached beneath the vehicle, are “pick-up” modules, or the secondary coils, that consist of olef W-shaped ferrite cores with wires wrapped around the center. Fraunhofer’s inductive charging coil for electric cars [Image source: Games Best Deals Of For other uses, see Olev.

The scientists have managed to reduce the number of bulky ferrite sheets by using coil systems, kaiwt also reduces the cost. The potential for new electric vehicles is quite exciting, particularly with regard kaizt mass transit vehicles such as buses and trams, but the technology could one day be used for EVs also.

To power the primary coils, the cables are attached to the South Korean national power grid through a power inverter.

KAIST’s wireless Online Electric Vehicle, OLEV, runs inner city roads

Electric buses using the wireless transfer system are oev currently competitive with diesel buses in terms of capital costs but they are in terms of oelv ownership costs because of the savings on batteries that are possible with this system as well as the low maintenance requirements.


The ferrite cores in the primary coils were changed to a U shape and the cores in the secondary coil were changed a flat board shape to pick-up as much flux as possible.

In the meantime, at least one city in the UK, Milton Keynes, has already gone ahead with its own wireless transfer system, though this is fairly limited and requires buses to stop for several minutes at a time while charging.

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KAIST’s wireless Online Electric Vehicle, OLEV, runs inner city roads | EurekAlert! Science News

A wireless parking charge system on display at a motor show [Image source: The inverter accepts 60Hz oleg or voltage from the grid to generate 20k Hz of AC electricity into the cables. 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.

From Wikipedia, the free encyclopedia. Two other Fraunhofer institutes, the Fraunhofer Institutes for Manufacturing Technology and Advanced Materials IFAM and for Transportation and Infrastructure Systems IVI, have successfully tested wireless transfer systems for use in cars, using a meter-long test route with coils embedded in the road. Wireless transfer was first demonstrated by Nikolai Tesla in After the successful operation of the two OLEV buses by the end of this year, Gumi City plans to provide ten kxist such buses by Likewise, an OLEV tram does not require pantographs to feed power from electric wires strung above the tram route.


However, it is perfect for buses, enabling them to make considerable weight savings on batteries. Wireless charging in the UK is not without its critics. The test vehicle, a sports car converted into an electric vehicle, managed to travel the entire route at a moderate speed while simultaneously charging its battery.

This approach is increasingly being tested in various countries as a potential means of charging EVs on the move. KAIST, via Wired Magazine ] Alongside innovative battery technology, another potential method okev charging electric vehicles EVs could be wireless energy transfer strips installed on road surfaces. This page was last edited on 17 Marchat Retrieved from ” https: Moreover, if the primary and secondary coils are vertically misaligned by a distance over 3mm, the power efficiency drops greatly.

Skip to main content? This is certainly a turning point for OLEV to become more commercialized and widely accepted for mass transportation in our daily living. By using this site, you agree to the Terms of Use and Privacy Policy. Overall, the gen 2 made up for the gen 1’s margins but, was more kaust. The wireless transfer system means that batteries in electric vehicles can be reduced in size to about a third of that you would normally expect to find in an electric car.

Use dmy dates from May Overall, the gen 3 OLEV made up for the gen 1’s small margins and gen 2’s increased cost.