大西 亘

Precision Levitation Control of a Planar Motor via Compensation of FEM–Hardware Electromagnetic Discrepancies
Keigo Nakata,Wataru Ohnishi,Takafumi Koseki,Yuichiro Nakamura,Kenji Takahashi,Hiroyuki Sekiguchi
IEEE Transactions on Magnetics 2026年05月 [査読有り]

High-Bandwidth Iterative Learning-Based Torque-Sensorless Ripple Decomposition and Feedforward Compensation for PMSMs
Kentaro Tsurumoto,Wataru Ohnishi
IEEE/ASME Transactions on Mechatronics 2026年04月 [査読有り]

Gaussian Process-Based Compensation of State-Dependent Disturbances in Iron-Core Linear Motor Stages
Reon Sasaki,Wataru Ohnishi,Pai-Hsueh Yang,Houng-Joong Kim,Koichi Sakata,Takafumi Koseki
11th IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization 2026年03月 [査読有り]

Temperature Disturbance Suppression for Single Wafer Deposition System by Iterative Learning Control
Akira Hirata,Tatsuya Yamaguchi,Wataru Ohnishi
11th IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization 2026年03月 [査読有り]

Modeling of a Long Tube for Mass Flow Rate Control and Its Parameter Estimation via Iterative Learning Control
Kosuke Kuroda,Koki Hattori,Takafumi Koseki,Wataru Ohnishi
11th IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization 2026年03月 [査読有り]

Trajectory Design and Vibration Suppression Control for Stacker Crane by State Trajectory Regeneration
Kiyotaka Hamanaka,Wataru Ohnishi,Takafumi Koseki,Mitsuki Asai,Shuta Ano,Masamichi Nawa. Norihiko Kato
11th IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization 2026年03月 [査読有り]

Implementation of Fast and Energy Efficient Temperature Control for a Semiconductor Vertical Furnace with an Inside Heater
Koma Nishioka,Christian Milleneuve Budiono,Wataru Ohnishi,Takafumi Koseki,Akira Hirata,Tatsuya Yamaguchi
11th IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization 2026年03月 [査読有り]

Analysis of Estimation Bias Caused by Continuization of Discrete Data in Chebyshev Polynomial-Based Differentiator
Kosuke Numata,Yusuke Nomura,Altanbileg Adiyasuren and Shuji Takada,Takafumi Koseki. Wataru Ohnishi
11th IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization 2026年03月 [査読有り]

Flow Rate Ripple Suppression in PWM-Actuated High-Speed Valves via Interleaved Actuation and Mechanical Input Shaping
Edisa Shoshi,Takafumi Koseki,Twana Ibrahim,Fleming Pedersen Dambo,Tom Oomen,Wataru Ohnishi
IEEE 19th International Conference on Advanced Motion Control (AMC) 2026年03月 [査読有り]

On convergence, tracking-performance and task-flexibility of joint parametrized/signal-based iterative learning control
Kentaro Tsurumoto,Wataru Ohnishi,Takafumi Koseki,Johan Kon,Maurice Poot,Tom Oomen
IEEJ Journal of Industry Applications 2025年12月 [査読有り]

Design and Control of a Multi-Degree-of-Freedom Magnetically Levitated Planar Motor
Keigo Nakata,Wataru Ohnishi,Takafumi Koseki,Yuichiro Nakamura,Kenji Takahashi,Hiroyuki Sekiguchi
IEEJ Journal of Industry Applications 2025年12月 [査読有り]

Feedforward Flow Rate Control for Pipe Resonance Cancellation via Iterative Learning-Based Parameter Identification
Koki Hattori,Wataru Ohnishi,Takafumi Koseki
IEEJ Journal of Industry Applications 2025年12月 [査読有り]

トルクリプル測定装置における位相シフトを用いた混合トルクリプル分離手法の提案
荻本湧気,沼田鋼助,大西亘,古関隆章,野村優介,アディヤスレンアルタンビレグ,高田修司
電気学会メカトロニクス制御研究会資料（電気学会研究会資料） MEC-25-022(MEC-25-022) 41-46 2025年12月

Noncausal State Estimation for Iterative Learning Control
Kentaro Tsurumoto,Wataru Ohnishi,Takafumi Koseki,Nard Strijbosch,Tom Oomen
IEEJ Journal of Industry Applications 2025年11月 [査読有り]

A Contactor Design for the Commutation Path in Fuse-Current-Limiting Hybrid DC Circuit Breakers
Yuki Okegawa,Shungo Zen,Nozomi Takeuchi,Wataru Ohnishi,Yusuke Nakano,Naoto Kodama,Yuki Inada
IEEE 70th Holm Conference on Electrical Contacts (HLM) 2025年10月 [査読有り]

Resistance Estimation of Current-Limiting Fuse for Active Control of Pyrofuse in DC Circuit Interruption Device
Taichi Nakano,Reon Sasaki,Yasuhiro Takada,Wataru Ohnishi,Yasushi Yamano,Yuki Inada
51st Annual Conference of the IEEE Industrial Electronics Society 2025年10月 [査読有り]

Quick Response Valve for 3DOF Active Control of Pneumatic Vibration Isolation Tables
Kazuki Goto,Koki Hattori,Kohei Hashimoto,Ichiro Kishimoto,Takafumi Koseki,Wataru Ohnishi
51st Annual Conference of the IEEE Industrial Electronics Society 2025年10月 [査読有り]

Normalized repetitive control for suppressing periodic disturbances amplified by nonrepeating coefficients
Kentaro Tsurumoto,Wataru Ohnishi
IFAC Joint Symposia on Mechatronics & Robotics 2025年07月 [査読有り]

Flow Rate Ripple Suppression Based on Phase Shift Optimization of Two PWM-Actuated High-Speed Valves
Edisa Shoshi,Koki Hattori,Twana Ibrahim,Fleming Pedersen Dambo,Takafumi Koseki,Wataru Ohnishi
IFAC Joint Symposia on Mechatronics & Robotics 2025年07月 [査読有り]

Chebyshev polynomial-based higher-order derivatives estimation from an encoder
Kosuke Numata,Yusuke Nomura,Adiyasuren Altanbileg,Shuji Takada,Takafumi Koseki,Wataru Ohnishi
IFAC Joint Symposia on Mechatronics & Robotics 2025年07月 [査読有り]

リニアモータを用いた革新的直流遮断器の実用性向上
佐々木怜音,大西亘,兒玉直人,中野裕介,全俊豪,山納康,稲田優貴
電気学会論文誌D 145(7) 506-513 2025年07月 [査読有り]

Onboard Train Localization Assisted by Surrounding Structure Identification Using One-Dimensional LiDAR Sensor
Kensuke Nagai,Haw-Shyang Chang,Wataru Ohnishi,Takafumi Koseki,Yusuke Setoguchi,Daichi Kiyosawa,Shunji Morita,Kazuhiro Tanaka
IEEE Intelligent Vehicles Symposium (IV) 2025年06月 [査読有り]

Fast and High-Precision Temperature Control in Semiconductor Vertical Furnace via Iterative Experiments
Christian Milleneuve Budiono,Akira Hirata,Tatsuya Yamaguchi,Takafumi Koseki,Wataru Ohnishi
IEEE Transactions on Semiconductor Manufacturing 2025年06月 [査読有り]

Concept Proof of Voltage Suppression across IGBT Application for Fuse-Current-Limiting Hybrid DCCBs
Yuki Okegawa,Hu Long,Yubin He,Shungo Zen,Nozomi Takeuchi,Wataru Ohnishi,Yusuke Nakano,Naoto Kodama,Yuki Inada
Institute of Electrical Engineers of Japan 2025年05月 [査読有り]

Fundamental Study on Visual Servo in Maglev Linear Synchronous Drive -Comparison of Position-Based and Image-Based Methodologies
Jianlong Gao,Yueying Yang,Wataru Ohnishi,Takafumi Koseki
The 15th International Symposium on Linear Drivers for Industry Applications 2025年05月 [査読有り]

Highly Responsive Drive of a Multi-Degree-of-Freedom Magnetic Levitation Planar Motor by Model-Based Feedforward Control
Keigo Nakata,Wataru Ohnishi,Takafumi Koseki,Yuichiro Nakamura,Kenji Takahashi,Hiroyuki Sekiguchi
The 15th International Symposium on Linear Drivers for Industry Applications 2025年05月 [査読有り]

Design of Staggered Electromagnets for Compact 6-DoF Levitated Stage with Transverse Flux Permanent Magnet Linear Synchronous Motor
Yueying Yang,Wataru Ohnishi,Takafumi Koseki,Houng-Joong Kim
The 15th International Symposium on Linear Drivers for Industry Applications 2025年05月 [査読有り]

High-precision and high-speed flow rate control with nonlinear disturbance compensation using valve body position feedback
Koki Hattori,Wataru Ohnishi,Takafumi Koseki
Mechatronics 108(103317) 2025年04月 [査読有り]

Fixed-structure sampled-data feedforward control for multivariable motion systems
Masahiro Mae,Max van Haren,Koen Classens,Wataru Ohnishi,Tom Oomen,Hiroshi Fujimoto
Mechatronics 106(103288) 103288-103288 2025年04月 [査読有り]

FPGA Implementation of Velocity Estimation Method Using Chebyshev Expansion
Kosuke Numata,Takafumi Koseki,Yusuke Nomura,Adiyasuren Altanbileg,Shuji Takada,Wataru Ohnishi
IEEE International Conference on Mechatronics (ICM) 2025年03月 [査読有り]

Drive Stabilization of Multi-Degree-of-Freedom Maglev Planar Motor Based on Closed Loop System Identification
Keigo Nakata,Wataru Ohnishi,Takafumi Koseki,Yuichiro Nakamura,Kenji Takahashi,Hiroyuki Sekiguchi
IEEE International Conference on Mechatronics (ICM) 2025年03月 [査読有り]

On Analysis of Applying Iterative Learning Control to a Closed-Loop Three-Phase Linear Stepper-Motor
Kentaro Tsurumoto,Wataru Ohnishi,Yoshihito Hara,Atsushi Kenjo,Yoneta Tanaka
IEEE International Conference on Mechatronics (ICM) 2025年03月 [査読有り]

Real-Time Tuning of Transformation Matrices for Decoupling Control in Dual-Drive Stage Systems Using Gaussian Process
Reon Sasaki,Naoki Akima,Gimpei Ito,Hiroshi Fujiwara,Hisashi Ooto,Wataru Ohnishi
IEEE International Conference on Mechatronics (ICM) 2025年03月 [査読有り]

Time-efficient Design of Energy-efficient Train Operation Strategy with Multi-fidelity Train Simulators
Xuanlang Meng,Wataru Ohnishi,Takafumi Koseki
IEEJ Journal of Industry Applications 13(6) 609-617 2024年11月 [査読有り]

Optimized sequence control of a fuse-semiconductor hybrid circuit breaker through real-time fuse state estimation
Songah Shin,Reon Sasaki,Yusuke Nakano,Naoto Kodama,Shungo Zen,Yasushi Yamano,Yuki Inada,Wataru Ohnishi
50th Annual Conference of the IEEE Industrial Electronics Society 2024年10月 [査読有り]

Active Control of Pyrofuse in Circuit Breaker with State Estimation of Current-Limiting Fuse
Taichi Nakano,Reon Sasaki,Wataru Ohnishi,Yasushi Yamano,Yuki Inada
50th Annual Conference of the IEEE Industrial Electronics Society 2024年10月 [査読有り]

Proposal of a Train Localisation Method Based on the Addition of Cubic Code
Kensuke Nagai,Wataru Ohnishi,Takafumi Koseki
Sixth International Conference on Railway Technology: Research, Development and Maintenance 2024年09月 [査読有り]

Simultaneous Optimisation of Energy-Efficient Speed Profiles of Two Trains by Parallel Dynamic Programming
Keisuke Sakai,Wataru Ohnishi,Takafumi Kosek
Sixth International Conference on Railway Technology: Research, Development and Maintenance 2024年09月 [査読有り]

Extended Optimisation of Periodic Urban Train Operation Considering Regenerative Braking Energy Utilisation Between Adjacent Two Trains
Xuanlang Meng,Wataru Ohnishi,Takafumi. Koseki
Sixth International Conference on Railway Technology: Research, Development and Maintenance 2024年09月 [査読有り]

Velocity and acceleration estimation via quantization step aware convex optimization: real-time implementation on FPGA
Kosuke Numata,Wataru Ohnishi,Takafumi Koseki,Yusuke Nomura,Adiyasuren Altanbileg,Shuji Takada
IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM) 841-846 2024年07月 [査読有り]

Vibration Suppression Feedforward Control Using Active Mass Damper for Stacker Crane
Kiyotaka Hamanaka,Wataru Ohnishi,Takafumi Koseki,Mitsuki Asai,Koji Yoshihara,Masamichi Nawa,Norihiko Kato
IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM) 568-573 2024年07月 [査読有り]

State Variable Dependent Disturbances Compensation Using Gaussian Process Regression: With Application to Core-Type Linear Motor
Reon Sasaki,Wataru Ohnishi,Takafumi Koseki,Koichi Sakata,Pai-Hsueh Yang,Gaurav Keswani,Houng-Joong Kim
IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM) 416-421 2024年07月 [査読有り]

Compensation of Pressure Dependent Disturbance: Poppet Position Control in a Pneumatic Valve
Koki Hattori,Wataru Ohnishi,Takafumi Koseki
IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM) 51-56 2024年07月 [査読有り]

Multi-Axis Resonant Filter Design using Frequency Response Data applied to Industrial Scan Stage
Masahiro Mae,Wataru Ohnishi,Hiroshi Fujimoto,Koichi Sakata
IEEE/ASME Transactions on Mechatronics 1(10) 2024年07月 [査読有り]

Combined time-domain optimization design for task-flexible and high performance ILC
Kentaro Tsurumoto,Wataru Ohnishi,Takafumi Koseki,Max van Haren,Tom Oomen
European Control Conference 1183-1188 2024年06月 [査読有り]

ヒューズと半導体を併用した限流遮断器による低電圧システムの事故・負荷電流遮断
稲田優貴,全俊豪,大西亘,兒玉直人,中野裕介,高田康宏,佐々木怜音,宮岡優太,塚本幸佑,山田圭矢,山納康
電気学会論文誌D 144(6) 502-508 2024年06月 [査読有り]

A frequency-domain approach for enhanced performance and task flexibility in finite-time ILC
Max van Haren,Kentaro Tsurumoto,Masahiro Mae,Lennart Blanken,Wataru Ohnishi,Tom Oomen
European Journal of Control 1189-1194 2024年06月 [査読有り]

Integrated Rational Feedforward in Frequency-Domain Iterative Learning Control for Highly Task-Flexible Motion Control
Kentaro Tsurumoto,Wataru Ohnishi,Takafumi Koseki,Max van Haren,Tom Oomen
IEEE/ASME Transactions on Mechatronics 29(4) 2024年05月 [査読有り]

速い摩擦変動を模擬する鉄道車両制御技術試験向け小型軌条輪装置の粘着特性の基礎実測
上野爽,大西亘,古関隆章
電気学会論文誌D 144(5) 391-398 2024年05月 [査読有り]

一定ジャーク減速による位置依存速度・加速度制約下の最小時間列車定位置停止軌道設計
[三好正太, 大西亘, 古関隆章
電気学会論文誌D 144(3) 102-111 2024年04月 [査読有り]

Analysis of voltage unbalance and mitigation of circulating power in bilateral co-phase traction system
Nipun Pande,Wataru Ohnishi,Takafumi Koseki
Electric Power Systems Research 228(110048) 2024年03月 [査読有り]

昇圧コンバータの非線形非因果的フィードフォワードを用いた2自由度制御の実験検証
三好正太,大西亘,古関隆章,佐藤基
電気学会論文誌D 144(3) 112-121 2024年03月 [査読有り]

Noncausal Nonlinear Feedforward Controller Design for Boost Converter Voltage Trajectory Tracking
Wataru Ohnishi,Shota Miyoshi,Takafumi Koseki,Motoki Sato
10th IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization 2024年02月 [査読有り]

Mass Flow Rate Control with Compensation of Nonlinearity Using Valve Internal Variables
Koki Hattori,Wataru Ohnishi,Takafumi Koseki
IEEE 18th International Conference on Advanced Motion Control 2024年02月 [査読有り]

Estimation of higher-order state variables by polynomial approximation considering quantization step size of encoder and the implementation on FPGA
Kosuke Numata,Wataru Ohnishi,Takafumi Koseki,Yusuke Nomura,Adiyasuren Altanbileg,Shuji Takada
IEEE 18th International Conference on Advanced Motion Control 2024年02月 [査読有り]

Control-relevant neural networks for feedforward control with preview: Applied to an industrial flatbed printer
Leontine Aarnoudse,Johan Kon,Wataru Ohnishi,Maurice Poot,Paul Tacx,Nard Strijbosch,Tom Oomen
IFAC Journal of Systems and Control 27(100241) 2024年01月 [査読有り]

Multirate feedforward control with mode decomposition for intersample performance in multivariable motion systems
Masahiro Mae,Wataru Ohnishi,Hiroshi Fujimoto
Control Engineering Practice 141(105694) 2023年12月 [査読有り]

Multivariable Modelling and Coupling Analysis for the Levitation System of an Iron-Core Permanent Magnet Maglev Synchronous Linear Motor
Yueying Yang,Wataru Ohnishi,Takafumi Koseki
2023 26th International Conference on Electrical Machines and Systems, ICEMS 2023 2129-2134 2023年11月

Output Voltage Precise Tracking Control for Boost Converters Based on Noncausal and Nonlinear Feedforward Control
Shota Miyoshi,Wataru Ohnishi,Takafumi Koseki,Motoki Sato
IEEJ Journal of Industry Applications 12(6) 1114-1126 2023年11月

Time-Optimal Temperature Control via Binary Search in Semiconductor Vertical Furnace
Christian Milleneuve Budiono,Wataru Ohnishi,Takafumi Koseki,Akira Hirata,Ryosuke Shibatsuji,Tatsuya Yamaguchi
49th Annual Conference of the IEEE Industrial Electronics Society 2023年10月 [査読有り]

Spatiotemporal Evolution of Electrical Conductivity in Current-Limiting-Fuse Arc
Yuki Inada,Yusuke Fukai,Naoki Takayasu,Yusuke Nakano,Shungo Zen,Wataru Ohnishi,Yasushi Yamano,Mitsuaki Maeyama,Naoto Kodama
Journal of Physics D: Applied Physics 56(50) 2023年09月 [査読有り]

Train trajectory generation method to mitigate delay propagation based on continuous train position acquisition
Keisuke Sakai,Wataru Ohnishi,Takafumi Koseki,Kazuhiro Tanaka,Shunji Morita,Katsutoshi Tokuhara,Koki Kasai
IEEJ Journal of Industry Applications 12(5) 2023年09月 [査読有り]

Task flexible and high performance ILC: Preliminary analysis of combining a basis function and frequency-domain approach
Kentaro Tsurumoto,Wataru Ohnishi,Takafumi Koseki
IFAC-PapersOnLine 56(2) 1907-1912 2023年07月

Systematic Filter Design by Convex Optimization for Disturbance Rejection in Dual-Stage Actuated Hard Disk Drives
Xiaoke Wang,Wataru Ohnishi,Takenori Atsumi
22nd IFAC World Congress 11384-11389 2023年07月 [査読有り]

Task Flexible and High Performance ILC: Preliminary Analysis of Combining a Basis Function and Frequency Domain Design Approach
Kentaro Tsurumoto,Wataru Ohnishi,Takafumi Koseki
22nd IFAC World Congress 2057-2062 2023年07月 [査読有り]

Frequency Response Data-Based Resonant Filter Design Considering Phase Stabilization and Stroke Limitation Applied to Dual-Stage Actuator Hard Disk Drives
Masahiro Mae,Wataru Ohnishi,Hiroshi Fujimoto
22nd IFAC World Congress 11390-11395 2023年07月 [査読有り]

遅延伝搬を抑制する次世代列車制御における閉塞分割効果
坂井 桂祐,大西 亘,古関 隆章,田中 和広,森田 隼史,徳原 克俊,葛西 光希
電気学会論文誌D 143(6) 447-454 2023年06月 [査読有り]

Proposal for Estimation of the Vertical Center of Gravity and the Decoupling Control with 2-DoF for a Maglev Linear Conveyor
Yueying Yang,Wataru Ohnishi,Takafumi Koseki
The 14th International Symposium on Linear Drivers for Industry Applications 2023年06月 [査読有り]

Practical numerical modeling approach for a design of a two-dimensional linear synchronous actuator
Noriaki Ito,Takafumi Koseki,Wataru Ohnishi,Yuichiro Nakamura,Kenji Takahashi,Hiroyuki Sekiguchi
The 14th International Symposium on Linear Drivers for Industry Applications 2023年06月 [査読有り]

A proposal for a personalized trustable guidance system for urban railways considering passenger behavior attributes
So Ueno,Wataru Ohnishi,Takafumi Koseki
The Japan Society of Mechanical Engineers TER-21-057(TER-21-057) 11-16 2023年04月 [査読有り]

Proof-of-Concept of a Fuse-Semiconductor Hybrid Circuit Breaker with a Fast Fuse Exchanger
Wataru Ohnishi,Yuki Inada,Shungo Zen,Reon Sasaki,Yasuhiro Takada,Yuta Miyaoka,Kosuke Tsukamoto,Yasushi Yamano
IEEE Transactions on Power Delivery 38(2) 937-946 2023年04月 [査読有り]

Improved Intersample Behaviour of Non-Minimum Phase Systems using State-Tracking Iterative Learning Control
Liang Oei,Kentaro Tsurumoto,Wataru Ohnishi
IEEE International Conference on Mechatronics 2023年03月 [査読有り]

Review on Multirate Feedforward Control with Mode Decomposition for Intersample Performance in Multi-Modal Motion Systems
Masahiro Mae,Wataru Ohnishi,Hiroshi Fujimoto
9th IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization 2023年03月 [査読有り]

非因果的非線形フィードフォワードによる昇圧コンバータの出力電圧軌道精密追従制御法
三好正太,大西亘,古関隆章,佐藤基
電気学会論文誌D 143(3) 242-255 2023年03月 Boost converters are key components of DC power conversion used for electric mobility and renewable ... [査読有り]

Fast and precise temperature control for a semiconductor vertical furnace via heater-cooler integration
Wataru Ohnishi,Akira Hirata,Ryosuke Shibatsuji,Tatsuya Yamaguchi
IEEE Transactions on Semiconductor Manufacturing 36(2) 197-204 2023年01月 [査読有り]

State-Tracking Iterative Learning Control in Frequency Domain Design for Improved Intersample Behavior
Wataru Ohnishi,Nard Strijbosch,Tom Oomen
International Journal of Robust and Nonlinear Control 33(7) 4009-4027 2022年11月 [査読有り]

Neural Networks for Motion Feedforward: Control-Relevant Training and Non-Causality
Leontine Aarnoudse, Johan Kon, Wataru Ohnishi, Maurice Poot, Paul Tacx, Nard Strijbosch, Tom Oomen
Euspen Special Interest Group Meeting on Precision Motion Systems & Control 2022年11月 [査読有り]

Non-causal state estimation for improved state tracking in iterative learning control
Kentaro Tsurumoto,Wataru Ohnishi,Takafumi Koseki,Nard Strijbosch,Tom Oomen
Modeling, Estimation, and Control Conference 55(37) 7-12 2022年10月 [査読有り]

Feedforward with acceleration and snap using sampled-data differentiator for a multi-modal motion system
Masahiro Mae,Max van Haren,Wataru Ohnishi,Tom Oomen,Hiroshi Fujimoto
Modeling, Estimation, and Control Conference 2022年10月 [査読有り]

Feasibility of adopting bilateral co-phase traction network in single phase 25 kV AC traction system
Nipun Pande,Wataru Ohnishi,Takafumi Koseki
48th Annual Conference of the IEEE Industrial Electronics Society 2022年10月 [査読有り]

Efficient utilization of regenerative braking energy in bilateral co-phase systems
Nipun Pande,Wataru Ohnishi,Takafumi Koseki
International Conference on Rail Transportation 2022年08月 [査読有り]

Design of loop shaping filters based on convex optimization guaranteeing robust performance
Xiaoke Wang,Wataru Ohnishi,Takenori Atsumi
IEEE/ASME International Conference on Advanced Intelligent Mechatronics 2022年07月 [査読有り]

Feedforward of Sampled-Data System for High-Precision Motion Control using Basis Functions with ZOH Differentiator
Masahiro Mae,Max van Haren,Wataru Ohnishi,Tom Oomen,Hiroshi Fujimoto
2022 American Control Conference (ACC) 2022年06月

Frequency Response Data-based Disturbance Observer Design: With Application to a Non-minimum Phase Motion Stage
Xiaoke Wang,Wataru Ohnishi,Takafumi Koseki
IEEE/ASME Transactions on Mechatronics 27(6) 5318-5326 2022年04月 [査読有り]

Optimization-Based Disturbance Observer Design for Robust Control of Flexible Joint Robots with Model Variations
Deokjin Lee,Junho Song,Wataru Ohnishi,Sehoon Oh
11th IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization 2022年03月 [査読有り]

Improved state estimation by non-causal state observer
Kentaro Tsurumoto,Wataru Ohnishi,Takafumi Koseki,Nard Strijbosch,Tom Oomen
8th IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization 447-450 2022年03月 [査読有り]

Linear Matrix Inequality Based Data-driven Disturbance Observer Design: Application to a Non-Minimum Phase Motion Stage
Xiaoke Wang,Wataru Ohnishi,Takafumi Koseki
IEEJ Journal of Industry Applications 11(2) 334-340 2022年03月 [査読有り]

Effect of Dead Zone Compensation by Mass-Flow-Rate Twin Drive System with Anti-Windup for Pressure Control System
Yui Shirato,Wataru Ohnishi,Hiroshi Fujimoto,Yoichi Hori,Koichi,Sakata,Atsushi Hara
IEEJ Journal of Industry Applications 11(2) 299-307 2022年03月 [査読有り]

Frequency Response Data-based Multiple Peak Filter Design Applied to High-Precision Stage in Translation and Pitching
Masahiro Mae,Wataru Ohnishi,Hiroshi Fujimoto,Koichi Sakata
IEEE 17th International Conference on Advanced Motion Control 100-105 2022年02月 [査読有り]

Frequency response data-based peak filter design applied to MIMO large-scale high-precision scan stage
Masahiro Mae,Wataru Ohnishi,Hiroshi Fujimoto,Koichi Sakata,Atsushi Hara
Mechatronics 83(May) 2022年01月 [査読有り]

Study of Unbalance Reduction in 25kV AC Traction System by Different Transformer Configurations
Varsha Singh,Wataru Ohnishi,Takafumi Koseki
10th IEEE PES International Innovative Smart Grid Technologies Conference - Asia 2021年12月 [査読有り]

Adhesion estimation-based heuristic approach for wheel slip control in electric locomotives
Shikha Saini,Wataru Ohnishi,Takafumi Koseki
STECH2021 2021年11月 [査読有り]

Interaction of Traction Substations in Phase Shift Technique Based Traction Power Supply Network
Varsha Singh,Wataru Ohnishi,Takafumi Koseki
4th Asia Conference on Energy and Electrical Engineering 2021年09月 [査読有り]

空気圧駆動システムのための流量ツインドライブシステムによるデッドゾーン補償法
白戸柚衣,大西亘,藤本博志,堀洋一,坂田晃一,原篤史
精密工学会誌 87(9) 759-764 2021年09月 [査読有り]

Compensation of time and amplitude discretization by applying feedback modulator for motion control of electric railway
Shota Miyoshi,Wataru Ohnishi,Takafumi Koseki
30th International Symposium on Industrial Electronics 2021年06月 [査読有り]

Running trajectory optimization to mitigate delay propagation at highly frequent train service based on continuous train position acquisition
Keisuke Sakai,Wataru Ohnishi,Takafumi Koseki,Kazuhiro Tanaka,Shunji Morita,Katsutoshi Tokuhara,Koki Kasai
30th International Symposium on Industrial Electronics 2021年06月 [査読有り]

Data-based simultaneous design of plant model and robustness filter in disturbance observer
XiaoKe Wang,Wataru Ohnishi and Takafumi Koseki
American Control Conference 2021年05月 [査読有り]

Tip Vibration Suppression of a Flexible Lightweight Robot by Fixed Structure H∞ Control Using Acceleration Feedback
Takaaki Hayashi,Wataru Ohnishi,Takafumi Koseki,Yasuhiro Minoura,Koji Yoshihara and Masamichi Nawa
IEEJ International Workshop on Sensing, Actuation, Motion Control, and Optimization 356-359 2021年03月 [査読有り]

Proposal of Anti-Windup Method of Twin Drive Mass-Flow-Rate Control for Pneumatic Driving System
Yui Shirato,Wataru Ohnishi,Hiroshi Fujimoto,Yoichi Hori,Koichi Sakata and Atsushi Hara
IEEJ International Workshop on Sensing, Actuation, Motion Control, and Optimization 226-231 2021年03月 [査読有り]

A Summary of Disturbance Observer Design Methodology for Non-Minimum Phase System
XiaoKe Wang,Wataru Ohnishi,Takafumi Koseki
IEEJ International Workshop on Sensing, Actuation, Motion Control, and Optimization 1-6 2021年03月 [査読有り]