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Your search keyword '"Akihiro Daikoku"' showing total 12 results
Start Over Author "Akihiro Daikoku" Journal ieej transactions on industry applications
12 results on '"Akihiro Daikoku"'

1. Investigation of Water-cooled Integrated Motor-Inverter System for Vehicle Traction

Author

Moriyuki Hazeyama, Mitsuru Ishizuka, Shigetoshi Ipposhi, Yoshihiro Miyama, Yasushige Mukunoki, Norihiro Watanabe, Akihiro Daikoku, Kazuyoshi Watabu, and Junichi Aizawa

Subjects
Materials science, Water cooled, Traction (engineering), Inverter, Electrical and Electronic Engineering, Industrial and Manufacturing Engineering, Automotive engineering
Published
2019

3. The Examination of Slot and Pole Number Combinations of Consequent-Pole-Type Ferrite PM Axial Gap Motor with DC Field Windings

Author

Tomohira Takahashi, Satoshi Ogasawara, Hideaki Arita, Akihiro Daikoku, Toru Ogawa, and Masatsugu Takemoto

Subjects
Dc field, Materials science, Permanent magnet synchronous motor, 020209 energy, 020208 electrical & electronic engineering, 02 engineering and technology, Field coil, Industrial and Manufacturing Engineering, Electromagnetic coil, 0202 electrical engineering, electronic engineering, information engineering, Ferrite (magnet), Pole number, Electrical and Electronic Engineering, Composite material
Published
2018

4. Multi-phase Inverter-fed MATRIX Motor for High Efficiency Driving

Author

Akihiro Daikoku, Yoshihiro Miyama, Yuki Sakai, Kan Akatsu, Hideaki Arita, and Hiroki Hijikata

Subjects
Matrix (mathematics), Materials science, Multi phase, Inverter, Electrical and Electronic Engineering, Topology, Industrial and Manufacturing Engineering
Published
2018

5. Estimation Method of Cogging Torque Probability Distribution of Permanent Magnet Motor Resulting from Asymmetrical Properties

Author

Toshinori Tanaka, Eigo Totoki, Shinichi Yamaguchi, and Akihiro Daikoku

Subjects
010302 applied physics, Materials science, 020208 electrical & electronic engineering, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, 02 engineering and technology, Electrical and Electronic Engineering, 01 natural sciences, Industrial and Manufacturing Engineering
Published
2017

9. Cogging Torque Estimation of Permanent Magnet Motors Resulting from Magnetic Anisotropy of Non-oriented Electrical Steel Sheets

Author

Norio Takahashi, Koji Fujiwara, Akihiro Daikoku, Shinichi Yamaguchi, and Yukari Toide

Subjects
Materials science, Pole piece, Electromagnet, Electropermanent magnet, Cogging torque, Mechanical engineering, engineering.material, Industrial and Manufacturing Engineering, law.invention, Neodymium magnet, law, Dipole magnet, Magnet, engineering, Electrical and Electronic Engineering, Electrical steel
Published
2006

10. Cogging Torque Calculation of Permanent Magnet Motor Considering Stress Distribution in Magnetic Core

Author

Masatsugu Nakano, Shinichi Yamaguchi, Takashi Yoshioka, Chiyo Fujino, Yukari Toide, Hideaki Arita, Akihiro Daikoku, and Yoshihiro Tani

Subjects
Engineering, Magnetic core, business.industry, Cogging torque, Electrical engineering, Mechanical engineering, Permanent magnet motor, Electrical and Electronic Engineering, Stress distribution, business, Industrial and Manufacturing Engineering, Finite element method
Published
2006

12. Noise Reduction of the DC Motor for the Electrical Power Steering by Short Circuit Wires for Symmetrical Position

Author

Masafumi Okazaki, Akihiko Imagi, Yoshio Yoshikuwa, Toshinori Tanaka, and Akihiro Daikoku

Subjects
Engineering, Universal motor, business.industry, Stator, Noise reduction, Contact resistance, Electrical engineering, Brush, DC motor, Industrial and Manufacturing Engineering, law.invention, law, Electrical and Electronic Engineering, business, Short circuit, Armature (electrical engineering)
Abstract

The market of the electrical power steering is expanding rapidly because of its fuel efficiency. The DC motor is generally used in this system, whose noise reduction is demanded. The DC motor has some dispersion in contact number of segments or contact resistance between the brush and the commutator. When these conditions are different with plural brushes, currents in armature coils are in asymmetrical distribution and the unbalanced magnetic pull occurs in radial direction.We measured the radial force and currents in armature coils with the developed experimental apparatus that can also set up the eccentricity of rotor to stator. In this paper, we investigated the factor and the process of the radial force generated in the DC motor. Then we propose short circuit wires for symmetrical position that makes winding current symmetrical and realizes the noise reduction.

Published
2002

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