Our laboratory conducts research and development on motion control for a wide variety of control targets, ranging from high-precision servo systems used in electronics processing machines and semiconductor manufacturing/inspection equipment, to large conveyance systems used in logistics centers. We particularly focus on “vibration suppression control” and will contribute to solving various problems in industry by creating innovative control technologies that are “simple, automatic, and high-performance.”


Fig. 1. Servo system configuration example and control performance deterioration factors.

Aiming for simple, automatic, and high-performance control technology, we are focusing on the three design processes of “system identification and modeling,” “controller design,” and “controller tuning,” and concentrate on (1) pursuing elemental technologies in each process and (2) creating cross-cutting technologies to fully automate the entire process (Fig. 2).

The research topic (1) extremely pursues universal performance indices of motion control, such as fast-response and high-precision, considering the essence of each process. We advance elemental technologies through various approaches, such as control theory, measurement and analysis techniques, optimization algorithms, and signal processing, while incorporating innovations for “simplicity”.

On the other hand, the research topic (2) is aimed at new developments in motion control. High-performance motion control is one of Japan’s world-leading research fields. However, since engineers involved in the control design require advanced knowledge and skills, it is hard to spread the high-performance motion control technologies in industry due to time and human cost issues. Looking to the future, the working-age population (15-64 years old) is expected to decrease to 65% of the 2010 level by 2060, making it even more important to increase productivity. To sustain and accelerate the creation of innovative technologies, we aim to create next-generation autonomous control design technologies that pursue both control performance and control design efficiency by coordinately executing all design processes. We believe that the keys to the autonomous design are the cross-cutting technologies that bridge each process, and we are particularly focusing on research and development of the technologies.

シンプルで・自動的に・高性能な制御技術を目指して,「システム同定・モデリング」、「コントローラ設計」、「コントローラ調整」という3つの設計プロセスに着目し,①各プロセスを支える要素技術の追及と②全プロセスを完全自動化するための横断的技術の創出に注力しています(Fig. 2)。



Fig. 2. Research strategy towards high-performance and autonomous motion control design.