Proceedings of the 2019 International Conference on Precision Machining, Non-Traditional Machining and Intelligent Manufacturing (PNTIM 2019)

Research on Foreign Object Detection Technology in Wireless Charging System for Electric Vehicles

Authors
Liu Changke, Shang Yaceng, Lai Hao, Sun Kaidong
Corresponding Author
Liu Changke
Available Online November 2019.
DOI
10.2991/pntim-19.2019.50How to use a DOI?
Keywords
Wireless Charging; Dual-Frequency; Foreign Object Detection
Abstract

Foreign object detection is an important issue that restricts the development of wireless charging for electric vehicles. When foreign matter enters the charging area during charging, the impedance of the charging coil changes. According to this principle, the result shows that the higher the coil excitation frequency, the more obvious the coil impedance changes. In order to carry out accurate foreign object detection while charging, this paper proposes a dual-frequency inductive charging method. The high frequency is used for foreign object detection, the low frequency is used for wireless charging, the power supply topology and design method are given, and the simulation is verified.

Copyright
© 2019, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2019 International Conference on Precision Machining, Non-Traditional Machining and Intelligent Manufacturing (PNTIM 2019)
Series
Atlantis Highlights in Engineering
Publication Date
November 2019
ISBN
978-94-6252-829-1
ISSN
2589-4943
DOI
10.2991/pntim-19.2019.50How to use a DOI?
Copyright
© 2019, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Liu Changke
AU  - Shang Yaceng
AU  - Lai Hao
AU  - Sun Kaidong
PY  - 2019/11
DA  - 2019/11
TI  - Research on Foreign Object Detection Technology in Wireless Charging System for Electric Vehicles
BT  - Proceedings of the 2019 International Conference on Precision Machining, Non-Traditional Machining and Intelligent Manufacturing (PNTIM 2019)
PB  - Atlantis Press
SP  - 246
EP  - 250
SN  - 2589-4943
UR  - https://doi.org/10.2991/pntim-19.2019.50
DO  - 10.2991/pntim-19.2019.50
ID  - Changke2019/11
ER  -