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Potential for CO 2 Reduction by Dynamic Wireless Power Transfer for Passenger Vehicles in Japan

Author

Listed:
  • Osamu Shimizu

    (Graduate School of Frontier Science, The University of Tokyo, Chiba 2778561, Japan
    These authors contributed equally to this work.)

  • Sakahisa Nagai

    (Graduate School of Frontier Science, The University of Tokyo, Chiba 2778561, Japan
    These authors contributed equally to this work.)

  • Toshiyuki Fujita

    (Graduate School of Frontier Science, The University of Tokyo, Chiba 2778561, Japan
    These authors contributed equally to this work.)

  • Hiroshi Fujimoto

    (Graduate School of Frontier Science, The University of Tokyo, Chiba 2778561, Japan
    These authors contributed equally to this work.)

Abstract

In this study, a novel system named the third-generation wireless in-wheel motor (WIWM-3), which has a dynamic wireless power transfer (DWPT) system, is developed. It can extend the cruise range, which is one of the key specifications of electric vehicles. DWPT also reduces CO 2 emission as the driving resistance is reduced due to light weight of the batteries. In this study, CO 2 emission by an internal combustion vehicle, a long range drivable electric vehicle with the same cruise range, and an electric vehicle with WIWM-3 equipped with the DWPT system are analyzed using actual measurement data and calculated data based on actual measurement or specification data. A WPT system with WIWM-3 achieves 92.5% DC-to-DC efficiency as indicated by an actual measurement at the nominal position. Thus, the electric vehicle with DWPT can reduce up to 62% of CO 2 emission in internal combustion vehicles, and the long-range drivable vehicle emits 17% more CO 2 than the electric vehicle with DWPT. Moreover, it is expected that by 2050, electric vehicles with DWPT will reduce CO 2 emissions from internal combustion vehicles by 95% in Japan. DWPT systems make electric vehicles more sustainable and, hence, more acceptable for consumers.

Suggested Citation

  • Osamu Shimizu & Sakahisa Nagai & Toshiyuki Fujita & Hiroshi Fujimoto, 2020. "Potential for CO 2 Reduction by Dynamic Wireless Power Transfer for Passenger Vehicles in Japan," Energies, MDPI, vol. 13(13), pages 1-16, June.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:13:p:3342-:d:378647
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    References listed on IDEAS

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    1. Marojahan Tampubolon & Laskar Pamungkas & Huang-Jen Chiu & Yu-Chen Liu & Yao-Ching Hsieh, 2018. "Dynamic Wireless Power Transfer for Logistic Robots," Energies, MDPI, vol. 11(3), pages 1-13, February.
    2. Cheng Jiang & Yue Sun & Zhihui Wang & Chunsen Tang, 2018. "Multi-Load Mode Analysis for Electric Vehicle Wireless Supply System," Energies, MDPI, vol. 11(8), pages 1-11, July.
    3. Linlin Tan & Wenxuan Zhao & Minghao Ju & Han Liu & Xueliang Huang, 2019. "Research on an EV Dynamic Wireless Charging Control Method Adapting to Speed Change," Energies, MDPI, vol. 12(11), pages 1-13, June.
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    Cited by:

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    2. Kazimierz Lejda & Artur Jaworski & Maksymilian Mądziel & Krzysztof Balawender & Adam Ustrzycki & Danylo Savostin-Kosiak, 2021. "Assessment of Petrol and Natural Gas Vehicle Carbon Oxides Emissions in the Laboratory and On-Road Tests," Energies, MDPI, vol. 14(6), pages 1-19, March.

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