MENU
SEARCHTechnology enables electric vehicles to transfer electricity wirelessly from the road surface while moving. Power comes from the electrical cables buried under the surface of the road, creating magnetic fields.
A wireless electric bus, capable of being charged while stationary or driving, made its debut in South Korean city of Gumi this week.
The Online Electric Vehicle (OLEV), developed by the Korea Advanced Institute of Science and Technology (KAIST), removes the need to stop at a charging station.
RELATED: "German bus system to test Bombardier electric charging tech."
Two OLEV buses will run an inner city route between Gumi Train Station and In-dong district, for a total of 24 km roundtrip. The bus will receive 20 kHz and 100 kW (136 hp) electricity at an 85% maximum power transmission efficiency rate while maintaining a 17cm air gap between the underbody of the vehicle and the road surface.
OLEV receives power wirelessly through the application of the “Shaped Magnetic Field in Resonance (SMFIR)” technology. This is a new technology introduced by KAIST that enables electric vehicles to transfer electricity wirelessly from the road surface while moving. Power comes from the electrical cables buried under the surface of the road, creating magnetic fields. There is a receiving device installed on the underbody of the OLEV that converts these fields into electricity. The length of power strips installed under the road is generally 5% to15% of the entire road, requiring only a few sections of the road to be rebuilt with the xembedded cables.
The OLEV battery is one-third of the size of the battery from a regular electric car. The vehicle complies with the international electromagnetic fields (EMF) standards of 62.5 mG, within the margin of safety level necessary for human health. 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. As of today, the SMFIR technology supplies 60 kHz and 180 kW of power remotely to transport vehicles at a stable, constant rate.
After the successful operation of the two OLEV buses by the end of this year, Gumi City plans to provide ten more such buses by 2015.
RELATED: "Proterra to Power South Carolina Fleet."
Construction on all four stations is beginning now and is anticipated to be completed by spring 2028.
Read More →
The beginning of the final BRT segment advances construction across all five segments, reflecting steady progress toward shorter travel times, improved accessibility, and a more dependable connection to jobs, businesses, and community destinations.
Read More →
The changes are designed to reduce overall travel time, shorten wait times, and get customers to their destinations more quickly.
Read More →
The visit is part of the SF Fed's ongoing engagement with major employers and industries across Southern California and, more broadly, the western U.S. to better understand regional economic conditions and business outlooks.
Read More →
Advances in data and analytics are giving transit agencies new opportunities to refine maintenance practices, improve efficiency and make more informed decisions about asset performance.
Read More →
Today’s riders—and the communities you serve—expect more from public transit. While ADA compliance is required, leading transit agencies know that true accessibility also means delivering dignity, efficiency, and a better rider experience. This whitepaper reveals why forward thinking agencies nationwide choose the Low Floor Frontrunner as their first choice for ADA compliant vehicles—setting a new standard with passenger first design, faster boarding, improved safety, and unmatched operational performance.
Read More →
In Part 2 of a two-part conversation, AC Transit’s director of maintenance joins co-hosts Alex Roman and Mark Hollenbeck to discuss his maintenance team’s work with various types of vehicle, training, augmented reality, and more.
Read More →
Under this extension, Keolis will continue to manage and operate fixed-route bus service across the East Valley, serving communities including Tempe, Mesa, Chandler, Scottsdale, the town of Gilbert, parts of Phoenix, and the Gila River Indian Community.
Read More →
The new network reflects extensive input from riders and the community through Reimagine DART on what matters most in public transit — and those priorities are reflected in the changes ahead.
Read More →
A new bus lane project aims to improve reliability on one of King County Metro’s busiest and most congestion-prone corridors.
Read More →