Foreign Object Detection for Electric Vehicle Wireless Charging

Wireless power transfer technology is being widely used in electric vehicle wireless-charging applications, and foreign object detection (FOD) is an important module that is needed to satisfy the transmission and safety requirements. FOD mostly includes two key parts: metal object detection (MOD) an...

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Bibliographic Details
Published inElectronics (Basel) Vol. 9; no. 5; p. 805
Main Authors Xia, Jinglin, Yuan, Xinmei, Li, Jun, Lu, Sizhao, Cui, Xinxu, Li, Siqi, Fernández-Ramírez, Luis M.
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.05.2020
Subjects
Circuits
Efficiency
Electric fields
Electric vehicle charging
Electric vehicles
Emissions
Equivalent circuits
Magnetic fields
Object recognition
Wireless power transmission
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Summary:Wireless power transfer technology is being widely used in electric vehicle wireless-charging applications, and foreign object detection (FOD) is an important module that is needed to satisfy the transmission and safety requirements. FOD mostly includes two key parts: metal object detection (MOD) and living object detection (LOD), which should be implemented during the charging process. In this paper, equivalent circuit models of a metal object and a living object are proposed, and the FOD methods are reviewed and analyzed within a unified framework based on the proposed FOD models. A comparison of these detection methods and future challenges is also discussed. Based on these analyses, detection methods that employ an additional circuit for detection are recommended for FOD in electric vehicle wireless-charging applications.
ISSN:2079-9292
2079-9292
DOI:10.3390/electronics9050805