ELECTRIC VEHICLE ON ELECTRIFIED ROADWAY POWERED WHILE RUNNING "EVER-PWR"

Takashi Ohira

2012

Abstract

Electric vehicles (EVs) are strongly expected to replace gasoline-engine motors as a green transportation. However, currently used EVs have inherent disadvantages such as too short cruising range by one charge, too long time of battery charging, too heavy weight, and too high maintaining cost. These are all due to bulky batteries onboard. To overcome those problems, there are many attempts to apply the power-whilerunning scheme like the electric railway to electric vehicles. One approach to this scheme is the magnetic coupling between two coils, which was first demonstrated in MIT and worldwide known as wireless electricity. This approach may be useful for charging the vehicles when they are staying at the parking lot or some facility. It would be difficult to keep a high power transfer efficiency when the vehicle is running. This is because the coils must be accurately placed to have a common axis to obtain a high efficiency. This lecture presents a novel scheme to achieve a high transfer power efficiency even while the vehicle is running. The idea stems from the railway, but how can it be done without an overhead wire? We focus on the tire with a built-in steel belt, which always touches a road on the surface. Supposing a pair of electrodes just beneath the road surface, the steel belt can pick up the power through displacement current in the tire. This scheme is called Electric Vehicle on Electrified Roadway Powered While Running or "EVER-PWR". The audience may say is it really feasible. So the lecture shows a spectacular demonstration at least in a video on the screen. As a measurement result using a scale model of EVER-PWR, an incredible power transfer efficiency exceeding 77% is exhibited. This is a major step toward the development of quite promising green vehicle technology for our sustainable future.

Paper Citation

in Harvard Style

Ohira T. (2012). ELECTRIC VEHICLE ON ELECTRIFIED ROADWAY POWERED WHILE RUNNING "EVER-PWR" . In Proceedings of the First International Conference on Telecommunications and Remote Sensing - Volume 1: ICTRS, ISBN 978-989-8565-28-0, pages 15-15. DOI: 10.5220/0005413200150015

in Bibtex Style

@conference{ictrs12,
author={Takashi Ohira},
title={ELECTRIC VEHICLE ON ELECTRIFIED ROADWAY POWERED WHILE RUNNING "EVER-PWR"},
booktitle={Proceedings of the First International Conference on Telecommunications and Remote Sensing - Volume 1: ICTRS,},
year={2012},
pages={15-15},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005413200150015},
isbn={978-989-8565-28-0},
}

in EndNote Style

TY - CONF
JO - Proceedings of the First International Conference on Telecommunications and Remote Sensing - Volume 1: ICTRS,
TI - ELECTRIC VEHICLE ON ELECTRIFIED ROADWAY POWERED WHILE RUNNING "EVER-PWR"
SN - 978-989-8565-28-0
AU - Ohira T.
PY - 2012
SP - 15
EP - 15
DO - 10.5220/0005413200150015