BBC News South Korean road wirelessly recharges OLEV buses

30 Мар 2014 | Author: | Комментарии к записи BBC News South Korean road wirelessly recharges OLEV buses отключены
August Electric Vehicle

South Korean road recharges OLEV buses

By Leo Technology reporter

Two buses with the wireless charging are in use in the city of Gumi

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South Korea has switched on a which can recharge electric as they drive over it.

The s developer says the 12km miles) route is the first of its in the world.

It means vehicles with compatible equipment do not to stop to recharge and can also be with smaller than batteries.

Two public buses are using the technology and there are to add 10 more by 2015.

It s quite remarkable that we with the OLEV [online vehicle] project so that are offering public transportation to passengers, said Dong-Ho who led the team behind the scheme at Advanced Institute of Science and (KAIST).

This is certainly a point for OLEV to become commercialised and widely accepted for transportation.

However, another expert warned that the involved in installing the equipment it was less practical than schemes which involved wirelessly charging at specific or using overhead cables.

is clearly a lot of potential for this for public transport applications, but for electric vehicles the cost of all roads with such may be prohibitive, said Dr Paul from the Centre for Automotive Research at Cardiff University.

The researchers say the electromagnetic fields do not pose a health risk

batteries

The Korean project from the train station in the of Gumi, in the south of the country, to the district.

A device fitted to the of the buses receives power the road using a technology Shaped Magnetic Field In .

Electric cables installed the road are used to generate fields which are picked up by a inside the device and converted electricity. The receiving equipment can be up to (6.7in) above the road s

The researchers say they can transfer 20 kHz and 100 kW horsepower) electricity at up to an 85% maximum transmission efficiency rate.

say that the power strips only need to be placed 5% to 15% of the road, meaning that certain sections need to be dug up and

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They add that because do not need to stock up on energy making their journey, the involved can be three times than would otherwise be This reduces the weight of the helping reduce the amount of dioxide emitted when the power required.

‘Showcase technology’

Although the project is the first working to power vehicles on the move, are other inductive charging elsewhere.

Torino, Italy and the Netherlands have also wireless charging equipment to of their bus stops to allow the to top up power while drivers short breaks.

Engineering Arup and Mitsui have set up a venture to roll out a similar in Milton Keynes this

Utah State University is testing a prototype campus bus it says can achieve greater 90% power transmission efficiency a distance of 6in (15cm) between the coil and road surface at stops.

A Utah State University company is testing a wireless bus on its campus


There are also to transfer the concept to cars. In computer chip maker is testing a wireless charging it calls Halo which it has to Citroen and Rolls Royce but again the idea is only to power transmission pads at spots.

One expert said it was to be a long time before Korea s more ambitious became commonplace.

I think we are away from even about a nationwide network of roads, said Ashvin managing director of the Intelligence Asia consultancy.

For now, it appears to be more of a technology than something has the potential to be commercialised.

August Electric Vehicle
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