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32 results on '"Tanimoto, Tsutomu"'

1. Point Cloud Interpolation by RGB Image to Estimate Road Surface Profile for Preview Suspension Control

Author

Inoue, Masato, Kawasaki, Yosuke, Suzuki, Takuma, Washimi, Yuta, Tanimoto, Tsutomu, Takahashi, Masaki, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Tolio, Tullio A. M., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Schmitt, Robert, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Mastinu, Giampiero, editor, Braghin, Francesco, editor, Cheli, Federico, editor, Corno, Matteo, editor, and Savaresi, Sergio M., editor

Published
2024
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2. Analysis of Climate Conditions upon Driving Distance of Vehicle Integrated Photovoltaics‐Powered Vehicles

Author

Yamaguchi, Masafumi, primary, Nakamura, Kyotaro, additional, Ozaki, Ryo, additional, Kojima, Nobuaki, additional, Ohshita, Yoshio, additional, Masuda, Taizo, additional, Okumura, Kenichi, additional, Mabuchi, Takashi, additional, Satou, Akinori, additional, Tanimoto, Tsutomu, additional, Tomita, Yosuke, additional, Zushi, Yusuke, additional, Nakado, Takashi, additional, Yamada, Kazumi, additional, Thiel, Christian, additional, Tsakalidis, Anastasios, additional, Jaeger‐Waldau, Arnulf, additional, Takamoto, Tatsuya, additional, Araki, Kenji, additional, Ota, Yasuyuki, additional, and Nishioka, Kensuke, additional

Published
2023
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4. Analysis for Effects of Temperature Rise of Solar Cell Modules Upon the Driving Distance of Photovoltaics-Powered Vehicles

Author

Yamaguchi, Masafumi, primary, Masuda, Taizo, additional, Tanimoto, Tsutomu, additional, Tomita, Yosuke, additional, Ota, Yasuyuki, additional, Thiel, Christian, additional, Tsakalids, Anastasios, additional, Jaeger-WAldau, Arnulf, additional, Nakado, Takashi, additional, Araki, Kenji, additional, Nishioka, Kensuke, additional, Takamoto, Tatsuya, additional, Nakamura, Kyotaro, additional, Ozaki, Ryo, additional, Kojima, Nobuaki, additional, and Ohshita, Yoshio, additional

Published
2023
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5. Analysis of Climate Conditions upon Driving Distance of Vehicle Integrated Photovoltaics‐Powered Vehicles.

Author

Yamaguchi, Masafumi, Nakamura, Kyotaro, Ozaki, Ryo, Kojima, Nobuaki, Ohshita, Yoshio, Masuda, Taizo, Okumura, Kenichi, Mabuchi, Takashi, Satou, Akinori, Tanimoto, Tsutomu, Tomita, Yosuke, Zushi, Yusuke, Nakado, Takashi, Yamada, Kazumi, Thiel, Christian, Tsakalidis, Anastasios, Jaeger‐Waldau, Arnulf, Takamoto, Tatsuya, Araki, Kenji, and Ota, Yasuyuki

Subjects
CARBON dioxide mitigation, TRAFFIC safety, MOTOR vehicle driving, SOLAR cells, METROPOLIS
Abstract

The development of the vehicles powered by photovoltaic (PV) is desirable and very important for reducing CO2 emissions from the transport sector to realize a decarbonized society. Although long‐distance driving of vehicle‐integrated PV (VIPV)‐powered vehicles without electricity charging is expected in sunny regions, driving distance of VIPV‐powered vehicles is affected by climate conditions such as solar irradiation and outside temperature, and the power consumption of the air conditioners. In this article, analytical results for system efficiency of VIPV‐powered vehicles and the effects of usage of air conditioner are presented by using power losses estimated from the electric mileage by using the driving distance data for Toyota Prius and Nissan Van demonstration cars installed with high‐efficiency InGaP/GaAs/InGaAs three‐junction solar cell modules with a module efficiency of more than 30%. The potential of VIPV‐powered vehicles to be deployed in major cities in Japan and the world is also analyzed. Mild weather cities such as Miyazaki in Japan and Sydney in Australia are thought to have longer driving range even under usage of air conditioners. The other power losses for the VIPV such as temperature rise of VIPV modules and partial shading estimate the previous data and some reference as well as effects of usage of air‐conditioners are also discussed in this article. [ABSTRACT FROM AUTHOR]

Published
2024
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9. Analysis for the Potential of High‐Efficiency and Low‐Cost Vehicle‐Integrated Photovoltaics

Author

Yamaguchi, Masafumi, primary, Nakamura, Kyotaro, additional, Ozaki, Ryo, additional, Kojima, Nobuaki, additional, Ohshita, Yoshio, additional, Masuda, Taizo, additional, Okumura, Kenichi, additional, Satou, Akinori, additional, Nakado, Takashi, additional, Yamada, Kazumi, additional, Tanimoto, Tsutomu, additional, Zushi, Yusuke, additional, Takamoto, Tatsuya, additional, Araki, Kenji, additional, Ota, Yasuyuki, additional, and Nishioka, Kensuke, additional

Published
2022
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10. Analysis for the Potential of High‐Efficiency and Low‐Cost Vehicle‐Integrated Photovoltaics.

Author

Yamaguchi, Masafumi, Nakamura, Kyotaro, Ozaki, Ryo, Kojima, Nobuaki, Ohshita, Yoshio, Masuda, Taizo, Okumura, Kenichi, Satou, Akinori, Nakado, Takashi, Yamada, Kazumi, Tanimoto, Tsutomu, Zushi, Yusuke, Takamoto, Tatsuya, Araki, Kenji, Ota, Yasuyuki, and Nishioka, Kensuke

Abstract

The spread of the photovoltaic‐powered electric vehicle (PV‐EV) is desirable and is essential for reduction in CO2 emissions, increasing electric range, and creating a new clean energy infrastructure based on PVs. Development of highly efficient PV modules with reasonable cost is necessary to realize a longer PV‐driving range of passenger cars. Herein, the potential of various solar cell modules for vehicle‐integrated photovoltaic (VIPV) applications is analyzed. This article shows that the use of highly efficient solar cell modules with an efficiency of higher than 35% enables longer than 30 km day−1 PV driving under average irradiance of 4 kWh m−2 day−1 without external charging. Cost reduction of VIPV modules is also very important for spreading the PV‐powered vehicles. By considering electricity charging cost saving and reduction in CO2 emission of electric vehicles, the cost target of VIPV is discussed. The cost targets of the solar cell modules for the PV‐EV by considering only electricity charging cost saving, $2.6/Wp for a module with conversion efficiency of 20% and $3.7/Wp for a module with that of 40%, are estimated in the case of electric mileage of 10 km kWh−1. [ABSTRACT FROM AUTHOR]

Published
2023
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12. Analysis of temperature coefficients and their effect on efficiency of solar cell modules for photovoltaics-powered vehicles

Author

Yamaguchi, Masafumi, primary, Masuda, Taizo, additional, Araki, Kenji, additional, Ota, Yasuyuki, additional, Nishioka, Kensuke, additional, Takamoto, Tatsuya, additional, Thiel, Christian, additional, Tsakalidis, Anastasios, additional, Jaeger-Waldau, Arnulf, additional, Okumura, Kenichi, additional, Satou, Akinori, additional, Nakado, Takashi, additional, Yamada, Kazumi, additional, Zushi, Yusuke, additional, Tanimoto, Tsutomu, additional, Nakamura, Kyotaro, additional, Ozaki, Ryo, additional, Kojima, Nobuaki, additional, and Ohshita, Yoshio, additional

Published
2021
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13. Development of High‐Efficiency Solar Cell Modules for Photovoltaic‐Powered Vehicles

Author

Yamaguchi, Masafumi, primary, Ozaki, Ryo, additional, Nakamura, Kyotaro, additional, Lee, Kan-Hua, additional, Kojima, Nobuaki, additional, Ohshita, Yoshio, additional, Masuda, Taizo, additional, Okumura, Kenichi, additional, Satou, Akinori, additional, Nakado, Takashi, additional, Yamada, Kazumi, additional, Araki, Kenji, additional, Ota, Yasuyuki, additional, Nishioka, Kensuke, additional, Takamoto, Tatsuya, additional, Zushi, Yusuke, additional, Tanimoto, Tsutomu, additional, Thiel, Christian, additional, Tsakalidis, Anastasios, additional, and Jäger-Waldau, Arunulf, additional

Published
2021
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14. Potential of Si Tandem Solar Cell Modules for PV-Powered Vehicles

Author

Yamaguchi, Masafumi, primary, Araki, Kenji, additional, Ota, Yasuyuki, additional, Nishioka, Kensuke, additional, Takamoto, Tatsuya, additional, Masuda, Taizo, additional, Okumura, Kenichi, additional, Satou, Akinori, additional, Nakado, Takashi, additional, Yamada, Kazumi, additional, Zushi, Yusuke, additional, Tanimoto, Tsutomu, additional, Nakamura, Kyotaro, additional, Ozaki, Ryo, additional, Kojima, Nobuaki, additional, and Ohshita, Yoshio, additional

Published
2021
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15. Importance of Developing Photovoltaics-Powered Vehicles

Author

Yamaguchi, Masafumi, primary, Masuda, Taizo, additional, Nakado, Takashi, additional, Zushi, Yusuke, additional, Araki, Kenji, additional, Takamoto, Tatsuya, additional, Okumura, Kenichi, additional, Satou, Akinori, additional, Yamada, Kazumi, additional, Ota, Yasuyuki, additional, Nishioka, Kensuke, additional, Tanimoto, Tsutomu, additional, Nakamura, Kyotaro, additional, Ozaki, Ryo, additional, Kojima, Nobuaki, additional, and Ohshita, Yoshio, additional

Published
2021
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16. Development of High‐Efficiency Solar Cell Modules for Photovoltaic‐Powered Vehicles.

Author

Yamaguchi, Masafumi, Ozaki, Ryo, Nakamura, Kyotaro, Lee, Kan-Hua, Kojima, Nobuaki, Ohshita, Yoshio, Masuda, Taizo, Okumura, Kenichi, Satou, Akinori, Nakado, Takashi, Yamada, Kazumi, Araki, Kenji, Ota, Yasuyuki, Nishioka, Kensuke, Takamoto, Tatsuya, Zushi, Yusuke, Tanimoto, Tsutomu, Thiel, Christian, Tsakalidis, Anastasios, and Jäger-Waldau, Arunulf

Subjects
SOLAR cells, PHOTOVOLTAIC power systems, SOLAR cell efficiency, CARBON offsetting, CARBON emissions, AUTOMOBILE license plates
Abstract

Photovoltaic (PV)‐powered vehicles are expected to play a critical role in a future carbon neutral society because it has been reported that the onboard PVs have great ability to reduce CO2 emission from the transport sector. Although the demonstration car with a III−V‐based solar cell module has shown the PV‐powered driving range of 36.6 km day−1 at solar irradiance of 6.2 kWh m−2 day−1, practical driving ranges of PV‐powered vehicles are shown to be lower than estimated values due to some losses such as nonradiative recombination and resistance losses of solar cell modules under sunshine condition. This article presents analytical results for the effects of illumination intensity properties of various solar cell modules on the PV‐powered driving range to develop highly efficient solar cell modules for vehicle‐integrated applications. The analysis shows that improvements in shunt resistance and saturation current density of solar cell modules are necessary to improve illumination intensity properties of solar cell modules under low intensity sunshine condition. The calculations show that the III−V‐based 3‐junction solar cell modules with an efficiency of more than 30% have a potential PV‐powered driving range of 30 km/day average and more than 50 km day−1 on a clear day. [ABSTRACT FROM AUTHOR]

Published
2022
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18. Permanent magnet temperature distribution estimation in PMSMs using BEMF harmonics

Author

Díaz Reigosa, David, Fernández Alonso, Daniel, Tanimoto, Tsutomu, Kato, Takashi, and Briz del Blanco, Fernando

Subjects
Permanent magnet synchronous machines, High frequency signal injection, Magnet temperature estimation
Abstract

PM temperature measurement/estimation in permanent magnet synchronous machines (PMSMs) is convenient both for torque control and monitoring purposes. Most of existing methods provide and averaged/punctual temperature. However, PM temperature distribution is not uniform, which can have unexpected adverse effects like reduced accuracy estimating the torque produced by the machine or local demagnetization e.g. due to hot spots. PM temperature distribution can be measured or estimated. Inner and outer PM surfaces are not visible once the machine is assembled. Therefore measurement of the PM temperature distribution cannot be realized by visual means. An array of temperature sensors attached to the PM can be used in this case. While this is technically feasible, it is unaffordable in commercial products due to cost and robustness issues. Alternatively, the PM temperature distribution can be estimated. The paper analyzes the use of back electromotive force (BEMF) harmonics to estimate the differential temperature in the PM of a PMSM, i.e. the temperature difference between the hottest and coldest parts of the magnets. Combined with average PM temperature estimation methods, this information can be used to estimate the PM temperature spatial distribution. The proposed method has been developed on an empirical basis

Published
2016

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