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JRM Vol.38 No.1 pp. 307-317
(2026)

Paper:

Development of Autonomous Robot-Mediated Wireless Power Transfer System for Mobile Targets

Kotaro Ozawa* ORCID Icon, Toshiki Shimizu*, Syuhei Toga**, Taku Shimizu* ORCID Icon, and Sousuke Nakamura* ORCID Icon

*Graduate School of Science and Engineering, Faculty of Science and Engineering, Hosei University
3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan

**Charging System Division, DAIHEN Corporation
2-1-11 Tagawa, Yodogawa-ku, Osaka, Osaka 532-8512, Japan

Received:
June 3, 2025
Accepted:
September 13, 2025
Published:
February 20, 2026
Keywords:
autonomous mobile robot, wireless power transfer (WPT), in-motion charging, maximum efficiency, factory automation
Abstract

Magnetic resonance coupling wireless power transfer (MRCWPT) is a wireless power transfer (WPT) technology that utilizes the resonant state of power transmission and reception circuits. Compared with the prevalent electromagnetic induction method, this approach facilitates the efficient transmission of substantial power over extended distances. However, this distance is limited to the approximate diameter of the transmission coil. Therefore, novel methods are required to overcome these limitations. Accordingly, we propose an automatic power-supply system using autonomous mobile robots (WPT-Robot) equipped with power-supply units that are compatible with MRCWPT. This concept has also been adopted and studied by other research groups. However, previous studies have not considered the application of WPT to mobile power supply targets. To address this issue, this paper proposes a tracking WPT system that enables the highly efficient WPT of mobile targets using a WPT-Robot.

Cite this article as:
K. Ozawa, T. Shimizu, S. Toga, T. Shimizu, and S. Nakamura, “Development of Autonomous Robot-Mediated Wireless Power Transfer System for Mobile Targets,” J. Robot. Mechatron., Vol.38 No.1, pp. 307-317, 2026.
Data files:
References
  1. [1] G. A. Covic and J. T. Boys, “Inductive Power Transfer,” Proc. of the IEEE, Vol.101, Issue 6, pp. 1276-1289, 2013. https://doi.org/10.1109/JPROC.2013.2244536
  2. [2] S. Y. Hui, “Planar Wireless Charging Technology for Portable Electronic Products and Qi,” Proc. of the IEEE, Vol.101, Issue 6, pp. 1290-1301, 2013. https://doi.org/10.1109/JPROC.2013.2246531
  3. [3] I. Mayordomo, T. Dräger, P. Spies, J. Bernhard, and A. Pflaum, “An Overview of Technical Challenges and Advances of Inductive Wireless Power Transmission,” Proc. of the IEEE, Vol.101, Issue 6, pp. 1302-1311, 2013. https://doi.org/10.1109/JPROC.2013.2243691
  4. [4] A. Kurs, A. Karalis, R. Moffatt, J. D. Joannopoulos, P. Fisher, and M. Soljačić, “Wireless Power Transfer via Strongly Coupled Magnetic Resonances,” Science, Vol.317, Issue 5834, pp. 83-86, 2007. https://doi.org/10.1126/science.1143254
  5. [5] N. Shinohara, “Wireless Power Transfer: Theory, Technology, and Applications,” The Institution of Engineering and Technology, 2018. https://doi.org/10.1049/PBPO112E
  6. [6] F. Jolani, J. Mehta, Y. Yu, and Z. D. Chen, “Design of Wireless Power Transfer Systems Using Magnetic Resonance Coupling for Implantable Medical Devices,” Progress in Electromagnetics Research Letters, Vol.40, pp. 141-151, 2013. https://doi.org/10.2528/PIERL13020509
  7. [7] T. M. Fisher, K. B. Farley, Y. Gao, H. Bai, and Z. T. H. Tse, “Electric vehicle wireless charging technology: A state-of-the-art review of magnetic coupling systems,” Wireless Power Transfer, Vol.1, No.2, pp. 87-96, 2014. https://doi.org/10.1017/wpt.2014.8
  8. [8] X. Li, C. Wang, H. Wang, X. Dai, Y. Sun, and A. P. Hu, “A Robust Wireless Power Transfer System with Self-Alignment Capability and Controllable Output Current for Automatic-Guided Vehicles,” IEEE Trans. on Power Electronics, Vol.38, Issue 10, pp. 11898-11906, 2023. https://doi.org/10.1109/TPEL.2023.3297196
  9. [9] P. Manivannan and S. Bharathiraja, “Qi Open Wireless Charging Standard – A Wireless Technology for the Future,” Int. J. of Engineering and Computer Science, Vol.2, Issue 3, pp. 573-579, 2013.
  10. [10] S. Nakamura, Y. Kakinuma, K. Akiho, and H. Hashimoto, “Prototype design of energy management system for mobile device via wireless charging robot,” 41st Annual Conf. of the IEEE Industrial Electronics Society (IECON 2015), pp. 005130-005135, 2015. https://doi.org/10.1109/IECON.2015.7392905
  11. [11] S. Nakamura, T. Suzuki, Y. Kakinuma, S. Saruwatari, K. Yamamoto, K. Arai, K. Akiho, and H. Hashimoto, “Prototype system for energy management of mobile device via wireless charging robot,” 2016 IEEE Int. Conf. on Advanced Intelligent Mechatronics (AIM), pp. 727-732, 2016. https://doi.org/10.1109/AIM.2016.7576854
  12. [12] M. R. Barzegaran, H. Zargarzadeh, and O. Mohammed, “Wireless Power Transfer for Electric Vehicle Using an Adaptive Robot,” IEEE Trans. on Magnetics, Vol.53, Issue 6, 2017. https://doi.org/10.1109/TMAG.2017.2664800
  13. [13] I. Cortes and W.-J. Kim, “Automated Alignment with Respect to a Moving Inductive Wireless Charger,” IEEE Trans. on Transportation Electrification, Vol.8, Issue 1, pp. 605-614, 2022. https://doi.org/10.1109/TTE.2021.3064782
  14. [14] L. Xie, X. Cao, J. Xu, and R. Zhang, “UAV-Enabled Wireless Power Transfer: A Tutorial Overview,” IEEE Trans. on Green Communications and Networking, Vol.5, Issue 4, pp. 2042-2064, 2021. https://doi.org/10.1109/TGCN.2021.3093718
  15. [15] E. Chen, P. Wu, Y.-C. Wu, and M. Xia, “UGV-Assisted Wireless Powered Backscatter Communications for Large-Scale IoT Networks,” IEEE Trans. on Wireless Communications, Vol.21, Issue 5, pp. 3147-3161, 2022. https://doi.org/10.1109/TWC.2021.3118787
  16. [16] X. Li, C. Wang, H. Wang, X. Dai, Y. Sun, and A. P. Hu, “A Robust Wireless Power Transfer System with Self-Alignment Capability and Controllable Output Current for Automatic-Guided Vehicles,” IEEE Trans. on Power Electronics, Vol.38, Issue 10, pp. 11898-11906, 2023. https://doi.org/10.1109/TPEL.2023.3297196
  17. [17] O. Shimizu, K. Hanabusa, K. Arasaki, D. Gunji, Y. Sakai, H. Ikeda, and F. Matsuoka, “Development of dynamic wireless power transfer system for vehicle logistics robot,” Electrical Engineering in Japan, Vol.215, Issue 2, pp. 146-154, 2022. https://doi.org/https://doi.org/10.1002/eej.23381
  18. [18] M. Ebben, “Logistic Control in Automated Transportation Networks,” Twente University Press, 2001.
  19. [19] M. Abderrahim, A. Bekrar, D. Trentesaux, N. Aissani, and K. Bouamrane, “Manufacturing 4.0 Operations Scheduling with AGV Battery Management Constraints,” Energies, Vol.13, Issue 18, Article No.4948, 2020. https://doi.org/10.3390/en13184948
  20. [20] M. De Ryck, M. Versteyhe, and K. Shariatmadar, “Resource management in decentralized industrial automated guided vehicle systems,” J. of Manufacturing Systems, Vol.54, pp. 204-214, 2020. https://doi.org/10.1016/j.jmsy.2019.11.003
  21. [21] T. Imura and Y. Hori, “Maximizing Air Gap and Efficiency of Magnetic Resonant Coupling for Wireless Power Transfer Using Equivalent Circuit and Neumann Formula,” IEEE Trans. on Industrial Electronics, Vol.58, Issue 10, pp. 4746-4752, 2011. https://doi.org/10.1109/TIE.2011.2112317
  22. [22] M. Kato, T. Imura, and Y. Hori, “New characteristics analysis considering transmission distance and load variation in wireless power transfer via magnetic resonant coupling,” Intelec 2012, 2012. https://doi.org/10.1109/INTLEC.2012.6374474
  23. [23] M. Kato, T. Imura, and Y. Hori, “Study on maximize efficiency by secondary side control using dc-dc converter in wireless power transfer via magnetic resonant coupling,” 2013 World Electric Vehicle Symp. and Exhibition (EVS27), 2013. https://doi.org/10.1109/EVS.2013.6915001
  24. [24] V. Jiwariyavej, T. Imura, and Y. Hori, “Coupling Coefficients Estimation of Wireless Power Transfer System via Magnetic Resonance Coupling Using Information from Either Side of the System,” IEEE J. of Emerging and Selected Topics in Power Electronics, Vol.3, Issue 1, pp. 191-200, 2015. https://doi.org/10.1109/JESTPE.2014.2332056
  25. [25] S. Nakamura and H. Hashimoto, “Error Characteristics of Passive Position Sensing via Coupled Magnetic Resonances Assuming Simultaneous Realization with Wireless Charging,” IEEE Sensors J., Vol.15, Issue 7, pp. 3675-3686, 2015. https://doi.org/10.1109/JSEN.2015.2397971
  26. [26] T. C. Beh, M. Kato, T. Imura, S. Oh, and Y. Hori, “Automated Impedance Matching System for Robust Wireless Power Transfer via Magnetic Resonance Coupling,” IEEE Trans. on Industrial Electronics, Vol.60, Issue 9, pp. 3689-3698, 2013. https://doi.org/10.1109/TIE.2012.2206337
  27. [27] M. Yusuke, T. Imura, and Y. Hori, “A study on reduction of reflected power using dc/dc converter in wireless power transfer system via magnetic resonant coupling,” IEEJ JIASC, Vol.2, pp. II-403-II-406, 2011 (in Japanese).

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Last updated on Feb. 19, 2026