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Foreign Object Debris Detection and Automatic Elimination for Autonomous Electric Vehicles Wireless Charging Application
Journal Article
14-09-02-0006
ISSN: 2691-3747, e-ISSN: 2691-3755
Sector:
Citation:
Ahmad, A., Alam, M., Rafat, Y., Shariff, S. et al., "Foreign Object Debris Detection and Automatic Elimination for Autonomous Electric Vehicles Wireless Charging Application," SAE Int. J. Elec. Veh. 9(2):93-110, 2020, https://doi.org/10.4271/14-09-02-0006.
Language:
English
Abstract:
Power pad designing, misalignment reduction, safety, automation, living object
detection (LOD), and foreign object debris (FOD) detection are the key
challenges in the commercialization of the high voltage wireless charging of
Electric Vehicles (EV). The interruption from unwanted and sensitive foreign
objects such as metal objects and living objects over the charging pads is an
immense challenge for the static wireless charging of EV. In this manuscript,
the problem of interference due to foreign objects and living objects has been
analyzed, and an innovative laser- and sensor-based FOD detection method is
proposed and verified by developing a prototype setup. Modeling and analysis of
the effects of foreign objects have been performed using Finite Element Analysis
(FEA) in Ansys Maxwell® environment. The analysis compares the consequence of
the presence of foreign objects on the wireless charging power pad. The proposed
method utilizes laser light and sensor for the detection and two-dimensional
signal processing for the elimination of FOD. The proposed method is compatible
with all types of static wireless charging systems without interrupting the
power transfer and power circuit. The proposed system has been analyzed and
compared with the various available FOD detection techniques. The feasibility of
the proposed system has been assessed with the help of an on the bench hardware
prototype implementation in the lab environment.