Transactions of Society of Automotive Engineers of Japan
Online ISSN : 1883-0811
Print ISSN : 0287-8321
ISSN-L : 0287-8321
Research Paper
Air Gap Design of in-Tire Repeater Coil for Dynamic Wireless Power Transfer System Considering Tire Deformation
Shota YamadaHayato SumiyaTatsuya YanagiOsamu ShimizuHiroshi FujimotoIsao KuwayamaYasumichi WakaoTakahiro Ohyama
Author information
JOURNAL FREE ACCESS

2022 Volume 53 Issue 6 Pages 1039-1044

Details
Abstract
Wireless power transfer (WPT) to in-motion electric vehicles can extend the cruising range without additional batteries. Our group has already proposed a novel dynamic WPT system using in-tire and in-wheel repeater coil, which can shorten the air gap between the coils on the road and tire sides. In WPT system, the air gap should be as small as possible from the viewpoint of efficiency and leakage electromagnetic field. However, it is necessary to have a sufficient air gap to avoid coil damage by tire deformation. The maximum tire deformation when overcoming bumps of various heights at different vehicle speeds is experimentally measured with two different tires, normal tire and self supporting runflat (SSR) tire. The measured results show advantages of using SSR tire for the proposed WPT system.
Content from these authors
© 2022 Society of Automotive Engineers of Japan, Inc.
Previous article Next article
feedback
Top