13 citations · 37 across the 9 of their papers we have counts for
6 papers · 1 filter
Generalized bilinear Koopman realization from input-output data for multi-step prediction with metaheuristic optimization of lifting function and its application to real-world industrial system
Shuichi Yahagi, Ansei Yonezawa, Heisei Yonezawa +2
This paper introduces an input-output bilinear Koopman realization with an optimization algorithm of lifting functions. For nonlinear systems with inputs, Koopman-based modeling is…
Fractional-order controller tuning via minimization of integral of time-weighted absolute error without multiple closed-loop tests
Ansei Yonezawa, Heisei Yonezawa, Shuichi Yahagi +2
This study presents a non-iterative tuning technique for a linear fractional-order (FO) controller, based on the integral of the time-weighted absolute error (ITAE) criterion. Mini…
Model-based controller assisted domain randomization for transient vibration suppression of nonlinear powertrain system with parametric uncertainty
Heisei Yonezawa, Ansei Yonezawa, Itsuro Kajiwara
Complex mechanical systems such as vehicle powertrains are inherently subject to multiple nonlinearities and uncertainties arising from parametric variations. Modeling errors are t…
Sparse Identification of Nonlinear Dynamics Enhanced by Ensemble Learning, Multi-Step Prediction Evaluation, Elite Strategy, and Classification Techniques for Applications to Industrial Systems
Shuichi Yahagi, Ansei Yonezawa, Hiroki Seto +2
This paper proposes a sparse identification of nonlinear dynamics (SINDy) with control and exogenous inputs for highly accurate and reliable prediction. Although SINDy is recognize…
Simple controller design to achieve iso-damping robustness: Non-iterative data-driven approach based on fractional-order reference model
Ansei Yonezawa, Heisei Yonezawa, Shuichi Yahagi +1
This study proposes a simple controller design approach to achieve a class of robustness, the so-called iso-damping property. The proposed approach can be executed using only one-s…
Practical one-shot data-driven design of fractional-order PID controller: Fictitious reference signal approach
Ansei Yonezawa, Heisei Yonezawa, Shuichi Yahagi +1
This study proposes a one-shot data-driven tuning method for a fractional-order proportional-integral-derivative (FOPID) controller. The proposed method tunes the FOPID controller…