Integrated Solution for Electric Vehicle and Foreign Object Detection in the Application of Dynamic Inductive Power Transfer

Wenli Shi, Jianning Dong, Thiago Batista Soeiro, P. Bauer

Research output: Contribution to journalArticleScientificpeer-review

10 Citations (Scopus)
44 Downloads (Pure)


One of the challenges with the dynamic inductive power transfer (DIPT) technique is the electric vehicle detection (EVD) that helps the DIPT system to control the power supply of the transmitter. The EVD method applying auxiliary coils is a promising candidate because the flat shape of the auxiliary coils is suitable for the compact design. However, the EVD may fail when the metallic foreign object (MFO) is present. Therefore, the desire emerges in the integration design of the EVD and foreign object detection (FOD). The FOD can ensure the reliability of the EVD as well as the highly efficient operation of the DIPT system without MFOs. In this context, this paper proposes an integrated solution to the EVD and FOD well suited for DIPT systems. The integrated solution utilizes both passive coil sets (PCSs) and active coil sets (ACSs). Additionally, a novel detection resonant circuit (DRC) is proposed to realize EVD and FOD using the same coil sets and to amplify the measurement sensitivity. The operation mechanisms, the detection coil sets architecture, the design of the proposed resonant circuits and the detection procedure are detailed. Finally, a printed circuit board based prototype is built to validate the integrated functionality of the EVD and FOD in a DIPT prototype processing 1 kW output. Experiments considering the practical DIPT application scenarios are conducted, and the proposed detection method is able to achieve advantageously high sensitivity and no blind zone.

Original languageEnglish
Pages (from-to)11365 - 11377
Number of pages13
JournalIEEE Transactions on Vehicular Technology
Issue number11
Publication statusPublished - 2021

Bibliographical note

Accepted Author Manuscript


  • Coils
  • Couplings
  • dynamic inductive power transfer
  • electric vehicle detection
  • foreign object detection
  • Magnetic resonance
  • resonant circuits
  • RLC circuits
  • Sensitivity
  • Voltage
  • Voltage measurement
  • Foreign object detection
  • Dynamic inductive power transfer
  • Electric vehicle detection
  • Resonant circuits


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