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Summary & Details

Coil Performance and Evaluation of Pavement Durability of Dynamic Wireless Power Transfer System using Ferrite-less and Capacitor-less Coil for Road Construction Methods

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Format: PDF

Price: Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880

Publication code: 20214324

Paper/Info type: Other International Conferences

No.D2.3

Pages: 1-7(Total 7 p)

Date of publication: May 2021

Publisher: JSAE

Language: English

Event: International Electric Vehicle Technology Conference EVTeC 2021 [Online Meeting]

Detailed Information

Category(E)	Wireless Power Transfer II
Author(E)	1) Takehiro Imura, 2) Koki Hanawa, 3) Kanta Sasaki, 4) Nagato Abe
Affiliation(E)	1) Tokyo University of Science, 2) Tokyo University of Science, 3) Tokyo University of Science, 4) Toa Road Corporation
Abstract(E)	The development of technology for embedding coils in roads is important for dynamic wireless power transfer (DWPT). When embedding coils in a road, it is necessary to ensure both the electrical and mechanical properties required for DWPT. In this study, coils are produced using PP and PE, which are synthetic resins. In addition, the coil is mainly an open-type coil without the ferrite and capacitor. The electrical characteristics of the coil were evaluated before and after burying it. Further, we evaluated the mechanical strength of the road before and after the coils were buried using the falling weight deflectometer test. Four construction methods were investigated. The deformation of the inside of the coil was measured using strain gauges, and during paving, the effect of the heat of the asphalt in the space inside the coil was measured using thermocouples. A comprehensive evaluation of the electrical and mechanical properties of the synthetic resin coils was conducted when they were paved. The results show that the reflection crack suppression sheet (RC mesh) method is currently the best construction method. Moreover, it was found that injecting cement grout to protect the coil was the best way to reduce the residual strain.

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