Community Collaboration Courses

I am attending the University of Tokyo through Ono Sokki 's domestic study abroad program. My main purpose for studying abroad is to participate in collaborative lectures, and during my stay, I prioritize research and academics over company work.

My initial reason for joining Ono Sokki was that it was a company that dealt with sound and vibration measuring instruments, which I had researched at university. However, during my training after joining the company, I discovered the joy of being involved in automotive testing.
Also, since our company has many opportunities to be involved with the automotive industry, I wanted to acquire knowledge about automobiles from the beginning of my career, so I took on the role of electrical design for test equipment mainly focused on the drivetrain. I saw the announcement for this collaborative training course on the company bulletin board, became interested, and decided to apply because I wanted to take on the challenge.

Approximately two years have passed. In my first year, I participated as a researcher, and during that time, I admired the other doctoral students. Wanting to make the most of this opportunity, I consulted with my professor, and was accepted into the doctoral program, where I began my research.

We are conducting research to design and evaluate a vibration suppression controller for PHEVs equipped with e-Axle, utilizing Ono Sokki 's testing equipment which uses a low-inertia dynamometer. If this controller can be realized, it will contribute to improving the "ride comfort" of electric vehicles, including EVs.

As the automotive industry moves towards electrification, the focus of research is shifting from internal combustion engines to electric motors. Consequently, the frequency range targeted in vibration control research and development is also shifting to higher ranges, and it has become clear that conventional models are no longer sufficient in Model-Based Dynamics (MBD). This necessitates modeling in the high-frequency range, and accurate measurement of frequency characteristics using low-inertia dynamometers is crucial for this modeling.
This research aims to establish a new methodology that can address these challenges associated with electrification. As motors become the primary power source in the future, I believe this new vibration suppression control method will become increasingly important and attract more attention, so I have high expectations for it.