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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KAIST, via Wired Magazine ] Alongside innovative battery technology, another potential method for charging electric vehicles EVs could be wireless energy transfer strips installed on road surfaces.

Power cables are wrapped around the center of the fish bone structures to make the “primary coils”. In Italy, such a system has been in use in Genoa olrv Turin for over ten years, providing 10 to 15 percent of the power for 30 electric buses which recharge at each bus stop.

Online Electric Vehicle – Wikipedia

In response to the cost issue of gen 2, the third generation OLEV was developed. The system was developed by a German company, Conductix-Wampfler, which claims a percent energy-transfer efficiency.

The inverter accepts 60Hz 3-phase or voltage from the grid to generate 20k Hz of AC electricity into the cables. To power the primary coils, the cables are attached to the South Korean national power grid through a power inverter. This in turn should help to improve the take-up of consumer electric vehicles. Use dmy dates from May This means that excess energy from the grid could be fed into these cars, using them as energy storage facilities until the power is required when it could be returned to the grid.

Attached beneath the vehicle, are “pick-up” modules, or the secondary coils, that consist of wide W-shaped ferrite cores with wires wrapped around the center.

This approach is increasingly being tested in various countries as ole potential means of charging EVs on the move. This device, which produces high voltage, high frequency alternating currents, enabled Tesla to transfer power over short distances without interconnecting wires via resonant inductive coupling, the near-field wireless transmission of electrical energy between two magnetically coupled coils.


South Korean road wirelessly recharges OLEV buses

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. Overall, the gen 3 OLEV made up for the gen 1’s small margins and gen 2’s increased cost.

The tests, due to take place off-road at some point either this year or next, will evaluate laist potential of the system to help reduce fuel costs, incur minimum impact on road surfaces and reduce environmental impact from road transport including improvements in air quality, reduced noise and lower carbon emissions.

This page was last edited on 17 Marchat For example, Dr Paul Nieuwenhuis the director of Cardiff Business School’s Electric Vehicle Centre of Excellence is fairly skeptical, on grounds of the cost and the fact that battery technology is improving all the time, kaidt with regard to what Tesla has managed to achieve in recent years.

By using this site, you agree to the Terms of Use and Privacy Policy. IWES found that even when a car is 20 centimeters away from a coil embedded in the road, an efficiency level of between 93 and 95 percent is okev achievable across the entire power range from watts to 3.

The road has a smart function as well, to distinguish OLEV buses from regular cars–the segment technology is employed to control the power supply by switching on the power strip when OLEV buses pass along, but switching it off for other vehicles, thereby preventing EMF exposure and standby power consumption.

Electric vehicle technologies Electric vehicles. The lower current means a smaller magnetic field and requires the secondary coil to be very close to the floor, which can be an issue while driving.

Power comes from the electrical cables buried under the surface of the road, creating magnetic fields. Another system is currently under development at Utah State University, supported by funding from the Federal Transit Administration and an induction system also launched in The Netherlands in Alongside innovative battery technology, another potential method for charging electric vehicles EVs could be wireless energy transfer strips installed on road surfaces.

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A trackless train was used as the demonstration vehicle, consisting of a tractor fitted with magnetic induction pick-ups and three passenger carriages. 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.

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. Likewise, an OLEV tram does not require pantographs to feed power from electric wires strung above the tram route. There is a receiving device installed on the underbody of the OLEV that converts these fields into electricity. If you continue to use this site, you consent to our use of cookies.

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

Some people question whether the system could ever be refined so that it can be used in cars, simply because the equipment used on the vehicles is too bulky at lbs. Another advantage of this system is that it can also discharge kajst on to the general power grid. Views Read Edit View history. This is certainly a turning point for OLEV to become more commercialized and widely accepted for mass transportation in our daily living.

The vehicle complies with the international electromagnetic fields EMF standards of kaiat In the meantime, at least one city in the UK, Milton Maist, 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. This is actually getting quite exciting, given that other companies around the world are beginning to pick up on this.