17cm-gap 20kHz-100kW @85% maximum power transmission efficiency KAIST's wireless Online Electric Vehicle runs inner city roads
http://www.gizmag.com/olev-buses-korea/28573/ OLEV-powered buses enter regular use in Korea By Ben Coxworth August 5, 2013 KAIST [images http://images.gizmag.com/gallery_lrg/olevbuses-0.jpg The buses will run a 24-km (15-mile) round trip route in Gumi’s inner city between the train station and the In-dong district http://images.gizmag.com/gallery_lrg/olevbuses.jpg One of Gumi's two new buses that will draw power from the road using the Online Electric Vehicle (OLEV) system http://images.gizmag.com/gallery_lrg/olevbuses-2.jpg Typically, only about 5 to 15 percent of the road surface needs to be excavated for the embedding of the cables ] As of this Tuesday (August 6th) the South Korean city of Gumi’s transit system will see the addition of two electric buses that draw their power from the road. It’s the latest step in the development of the Korea Advanced Institute of Science and Technology's (KAIST's) Online Electric Vehicle (OLEV) system, in which electric cables embedded in the asphalt provide power to vehicles traveling on its surface. The appeal of OLEV lies in the fact that electric vehicles using the system don’t have to be equipped with large, heavy batteries, they don’t have to stop to recharge, and messy overhead trolley lines aren’t required. Instead, the cables in the road produce magnetic fields, which receiving devices in the vehicles’ undersides pick up and convert into electricity. It can be a continuous process, or cables can be placed in separate locations along the road, providing ongoing top-ups to a relatively small battery within the vehicle. Typically, only about 5 to 15 percent of the road surface needs to be excavated for the embedding of the cables. The buses will run a 24-km (15-mile) round trip route in Gumi’s inner city between the train station and the In-dong district. They will maintain a 17-cm (6.7-in) gap between their underbodies and the asphalt the whole time, receiving 20 kHz and 100 kW (136 horsepower) of electricity at a maximum power transmission efficiency of 85 percent. EMF (electromagnetic field) levels within the buses are reportedly well within safe limits, plus the cables in the road only switch on when they detect the presence of one of the buses overhead – this should minimize pedestrians’ and other vehicles’ exposure to the magnetic fields, and will also save power. Although this will mark the first time that OLEV is used in a public transit system, the technology has previously been tested in a tram at an amusement park in Seoul. Assuming all goes well with the two buses in Gumi, the city plans to add an additional 10 such vehicles to its fleet by 2015. [© Gizmag 2003 - 2013] http://motherboard.vice.com/blog/the-worlds-first-road-powered-electric-vehicle-network-is-now-open The World's First Road-Powered Electric Vehicle Network Is Now Open [August 6, 2013] - Today, the nation has finally unveiled the world's first road-powered electric vehicle network for regular use. Here's how it works. The network runs on newly-built ... [image http://assets2.motherboard.tv/content-images/contentimage/no-slug/b2aee1fa9e10c9f3d568df83c435856a.jpg The basic make-up of the bus via KAIST ] ... http://www.eurekalert.org/pub_releases/2013-08/tkai-kwo080513.php KAIST's wireless Online Electric Vehicle, OLEV, runs inner city roads Daejeon, Republic of Korea, August 6, 2013 – The Online Electric Vehicle (OLEV), developed by the Korea Advanced Institute of Science and Technology ... http://www.popsci.com/cars/article/2013-08/wirelessly-charged-electric-buses-get-their-first-route First Inductively Charged City Bus System Now Rolling 08.06.2013 The Gumi government plans to add 10 more so-called OLEV (Online Electric Vehicle) buses by 2015, according to the Korea Advanced Institute of Science and Technology. Electrical engineers at the institute developed OLEVs. Other specs from the institute ... http://www.arabnews.com/news/460699 S. Korea tests 'electric road' for public buses 9 August 2013 ... it requires a battery only one-fifth the size of conventional electric vehicles. The system also eliminates the need for overhead wires used to power conventional trams or trolley buses ... [image http://www.arabnews.com/sites/default/files/imagecache/galleryformatter_slide/korea%20buses.jpg This picture taken on August 6, 2013 shows an Online Electric Vehicle (OLEV) running a commercialized test drive at a bus stop in Gumi, 200 km southeast of Seoul. (AFP) ] ... For all EVLN posts use: http://electric-vehicle-discussion-list.413529.n4.nabble.com/template/NamlServlet.jtp?macro=search_page&node=413529&query=evln&sort=date Here are today's archive-only EV posts: EVLN: Taiwan-made Pihsiang Achensa nEVs shipped to Europe (video) EVLN: So What if Better Place Buyers are Late with Their Bill? EVLN: Pangea Motors' Comet 16-seat eJeepneys have international orders EVLN: Comparing JuiceBox, OpenEVSE and EVSEUpgrade EVLN: Swedish inventor's in-road-EV-power caused Danish bomb scare + EVLN: Ultrasonic Welding Used For GM’s Plugin Battery Packs {brucedp.150m.com} -- View this message in context: http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-KAIST-embedded-road-powered-ebuses-no-need-for-a-heavy-pack-tp4664670.html Sent from the Electric Vehicle Discussion List mailing list archive at Nabble.com. _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
