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Mathematical Problems in Engineering - Volume 2015 2015, Article ID 205285, 14 pages -

Research Article

Korea Advanced Institute of Science and Technology KAIST, Daejeon 34141, Republic of Korea

The University of Suwon, Hwasung 445-743, Republic of Korea

Electronics and Telecommunications Research Institute ETRI, Daejeon 34129, Republic of Korea

Received 4 September 2015; Accepted 18 November 2015

Academic Editor: Shengbo Eben Li

Copyright © 2015 Karam Hwang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


An autonomous coil alignment system ACAS using fuzzy steering control is proposed for vehicles with dynamic wireless charging. The misalignment between the power receiver coil and power transmitter coil is determined based on the voltage difference between two coils installed on the front-left-front-right of the power receiver coil and is corrected through autonomous steering using fuzzy control. The fuzzy control is chosen over other control methods for implementation in ACAS due to the nonlinear characteristic between voltage difference and lateral misalignment distance, as well as the imprecise and constantly varying voltage readings from sensors. The operational validity and feasibility of the ACAS are verified through simulation, where the vehicle equipped with ACAS is able to align with the power transmitter in the road majority of the time during operation, which also implies achieving better wireless power delivery.

Autor: Karam Hwang, Jaehyoung Park, Dongwook Kim, Hyun Ho Park, Jong Hwa Kwon, Sang Il Kwak, and Seungyoung Ahn



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