Current Members

B.S., Department of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran

M.S., Department of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran

Ph.D., Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan

Nationality: Iran

Research Topic: Collective Dynamic Modeling on Mixture Agents

Publications: 

• Alireza Jafari and Yen-Chen Liu, "Time-to-Collision Based Social Force Model for Intelligent Agents on Shared Public Spaces ," International Journal of Social Robotics , accepted, Aug. 2024.

• Alireza Jafari and Yen-Chen Liu, "Pedestrians' Safety Using Projected Time-to-Collision to Electric Scooters," Nature Communications, Vol. 15, 5701, Jul. 2024.

• Alireza Jafari and Yen-Chen Liu, "A Heterogeneous Social Force Model for Personal Mobility Vehicles on Futuristic Sidewalks," Simulation Modelling Practice and Theory, Vol. 131, 102879, Feb. 2024.

• Yen-Chen Liu, Alireza Jafari, Jae Kun Shim, and Derek A. Paley, "Dynamic Modeling and Simulation of Electric Scooter Interactions with a Pedestrian Crowd Using a Social Force Model," IEEE Transactions on Intelligent Transportation Systems, Vol. 23, No. 9, pp. 16448-16461, Sep. 2022.

• Alireza Jafari and Yen-Chen Liu, "A Heterogeneous Social Force Model for Personal Mobility Vehicles on Futuristic Sidewalks," Simulation Modelling Practice and Theory, Vol. 131, 102879, Feb. 2024.

• Alireza Jafari and Yen-Chen Liu, "Perceived Time-To-Collision as Public Space Users’ Discomfort Metric," 22nd IFAC World Congress, Yokohama, Japan, Jul. 2023.

• Alireza Jafari and Yen-Chen Liu, "Behavior Capturing Dynamic Model for Electric Scooter Rider in Public Spaces," International Conference on System Science and Engineering (ICSSE), Taichung, Taiwan, May 2022.

• Alireza Jafari and Yen-Chen Liu, "A Modified Social Force Model for Electric Scooters," International Automatic Control Conference (CACS), Chiayi, Taiwan, Nov. 2021.

• Yun-Hao Lin, Alireza Jafari, and Yen-Chen Liu, "Dynamic Modeling and Stability Analysis of Balancing in Riderless Electric Scooters," American Control Conference (ACC), Toronto, Canada, Jul. 2024.

Awards

• Outstanding Doctoral Student Award, Grand Review Doctoral and Postdoctoral Research Academic Competition, National Cheng Kung University (NCKU), 2023.

B.S., Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, Taiwan

Nationality: Taiwan

Research Topic: Human-Swarm Interaction for Aerial Robots

Publications: 

• Kai-Yuan Liu, Te-Kang Hung, Chi-Hung Lin, and Yen-Chen Liu, "Redundancy-Driven Multi-Task Adaptive Backstepping Tracking Control for Aerial Manipulators," IEEE Access, Vol. 12, pp. 47134-47146, Apr. 2024.

• Yen-Chen Liu, Kai-Yuan Liu, and Zhuoyuan Song, "Resilient Time-Varying Formation Tracking for Mobile Robot Networks under Deception Attacks on Positioning," International Journal of Robust and Nonlinear Control, Vol. 33, No. 11, pp. 6308-6328, Jul. 2023.

• Kai-Yuan Liu and Yen-Chen Liu, “Distributed PI Consensus with Time-Varying Delay in Bilateral Teleoperated Multi-Agent Systems,” International Automatic Control Conference (CACS), Keelung, Taiwan, Nov. 2019.

• Kai-Yuan Liu and Yen-Chen Liu, “Distributed Estimated in Weight-Unbalanced Directed Graphs,” International Automatic Control Conference (CACS), Keelung, Taiwan, Nov. 2021.

• Kai-Yuan Liu and Yen-Chen Liu, "Distributed Multi-Agent Systems in Weight-Unbalanced Graphs," International Conference on Advanced Robotics and Intelligent Systems (ARIS), Taipei, Taiwan, Aug. 2022.

• Kai-Yuan Liu, Chi-Hung Lin, Te-Kang Hung, and Yen-Chen Liu, "Adaptive Backstepping Approach for Multitask Aerial Manipulator," International Conference on Advanced Robotics and Intelligent Systems (ARIS), Taipei, Taiwan, Aug. 2022.

• Kai-Yuan Liu, Tatsuya Ibuki, and Yen-Chen Liu, "Safe Bilateral Teleoperation for a UAV Using Control Barrier Functions and Passivity," IEEE International Conference on Systems, Man, and Cybernetics (SMC), Maui, Hawaii, USA, Oct. 2023.

Awards:

B.S., Department of Mechatronics Engineering, SRM University, Chennai, India

M.S., Department of Aerospace Engineering, University of Petroleum and Energy Studies, Dehradun, India

Nationality: India

Research Topic: Containment and Coverage Control for Multi-Agent Systems

Publications: 

• Mourya Thummalapeta and Yen-Chen Liu, "Survey of Containment Control in Multiagent Systems: Concepts, Communication, Dynamics, and Control," International Journal of Systems Science, Vol. 54, No. 14, pp. 2809-2835, Aug. 2023.

• Mourya Thummalapeta, Sheng-Wen Chen, and Yen-Chen Liu, "Importance-Based Distributed Persistent Coverage Strategy over Environmental Hotspots using Quadrotors: Algorithm and Experiments," Journal of the Franklin Institute, Vol. 361, No. 2, pp. 994-1009, Jan. 2024.

• Mourya Thummalapeta and Yen-Chen Liu, “Potential Energy Functions based Containment Control for Multiple Aerial Vehicle Systems,” International Automatic Control Conference (CACS), Hsinchu, Taiwan, Nov. 2020.

• Mourya Thummalapeta and Yen-Chen Liu, “Comprehensive Analysis of Containment Control in Multiagent Systems” International Automatic Control Conference (CACS), Hsinchu, Taiwan, Nov. 2021.

• Mourya Thummalapeta, Sheng-Wen Chen, and Yen-Chen Liu, "Priority-based Persistent Coverage over Disastrous Environments using Quadrotors," International Conference on Advanced Robotics and Intelligent Systems (ARIS), Taipei, Taiwan, Aug. 2022.

• Mourya Thummalapeta and Yen-Chen Liu, " Distributed Persistent Coverage Control over Importance-based Environments with Quadrotors," 22nd IFAC World Congress, Yokohama, Japan, Jul. 2023.

• Jue-Rong Fan, Mourya Thummalapeta, and Yen-Chen Liu, "Energy-Constrained Persistent Coverage Control on Multi-Quadrotor Systems," the 23rd International Conference on Control, Automation and Systems (ICCAS), Yeosu, Korea, Oct. 2023.

Awards

• Excellent Doctoral Student Award, Grand Review Doctoral and Postdoctoral Research Academic Competition, National Cheng Kung University (NCKU), 2023.

• Outstanding Paper Award, 23rd International Conference on Control, Automation and Systems (ICCAS), 2023.

B.S., Department of Automatic Control, Hanoi University of Science and Technology, Hanoi, Vietnam

Nationality: Vietnam

Research Topic: Connectivity Maintenance for Multi-Agent Flocking under Cyber Attacks

Publications: 

• Quang Huy Tran and Yen-Chen Liu, " Connectivity Preservation for Flocking Control of Multi-Agent Systems under Deception Attacks on Velocity," 22nd IFAC World Congress, Yokohama, Japan, Jul. 2023.

• Quang-Huy Tran and Yen-Chen Liu, "Robust, Flexible and Safe Cooperative Navigation for Multirobot Systems under Disturbances and Input Saturation,"  13th International Workshop on Robot Motion and Control (ROMOCO), Poznan, Poland, Jul. 2024.

Awards:

B.S., Department of Mechatronics Engineering, Hanoi University of Industry, Hanoi, Vietnam 

M.S., Department of Mechatronics Engineering, Hanoi University of Industry, Hanoi, Vietnam

Nationality: Vietnam

Research Topic: Advanced Intelligent Mobile Robotic Systems

Publications: 

• Cong-Thanh Vu and Yen-Chen Liu, "Deep Reinforcement Learning for Multi-Robot Local Path Planning in Dynamic Environments,"  13th International Workshop on Robot Motion and Control (ROMOCO), Poznan, Poland, Jul. 2024.

• Cong-Thanh Vu, Hsin-Chia Chen, and Yen-Chen Liu, "Toward Autonomous Navigation for Agriculture Robots in Orchard Farming,"  IEEE International Conference on Recent Advances in Systems Science and Engineering (RASSE), Taichung, Taiwan, Nov. 2024.

• Cong-Thanh Vu, Hsin-Hui Huang and Yen-Chen Liu, "Autonomous Navigation for Human-Following Robots Based on Optimized Position Tracking," International Conference on Control and Robotics Engineering (ICCRE), Nagoya, Japan, May. 2025, accepted.

Awards:

B.S., Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan

Nationality: Taiwan

Research Topic: Human-Robot Interaction for Mobile Manipulators

Publications: 

• Hua-Hsuan Yeh and Yen-Chen Liu, “Distributed Observer-Based Control for Teleoperation of Networked Mobile Manipulators with Communication Delays,” International Conference on Advanced Robotics and Intelligent Systems (ARIS), accepted, 2020.

• Hua-Hsuan Yeh and Yen-Chen Liu, “Distributed Synchronization Control for Single-Master-Multiple-Slaves Teleoperation of Networked Mobile Manipulators,” IEEE International Conference on Systems, Man, and Cybernetics (SMC), accepted, 2020. 

• Hua-Hsuan Yeh and Yen-Chen Liu, “Distributed Control for Teleoperation on Multiple Mobile Manipulators with Physical Constraints,” Asian Control Conference (ASCC), Jeju Island, Korea, May 2022. 

• Yu-Wei Chang, Shu-Ting Hsu, Hua-Hsuan Yeh, and Yen-Chen Liu, "An Intuitive Human-Manipulator Interface with Mixed Reality," the 23rd International Conference on Control, Automation and Systems (ICCAS), Yeosu, Korea, Oct. 2023.

• Bo-Nian Lee, Hua-Hsuan Yeh, and Yen-Chen Liu, "Whole-Body Impedance Control for Mobile Manipulators with Online Uncertainty Compensation," IEEE International Conference on Robotics and Biomimetics (ROBIO), Bangkok, Thailand, Dec. 2024.

Awards:

• Best Presentation Paper Award – the Third Place, International Conference on Advanced Robotics and Intelligent Systems (ARIS), 2020.

B.S., Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan

Nationality: Taiwan

Research Topic: Advanced Dynamic Wireless Power Transfer for Robotic Application

Publications: 

Awards:

B.S., Department of Mechanical Engineering, National Chung Hsing University, Taichung, Taiwan

Nationality: Taiwan

Research Topic: TBD

Publications: 

• Min-Yen Hsieh, En-Ming Liu, and Yen-Chen Liu, "Intelligent Automated Optical Inspection Integrated Robotic Grinding System for Helmet Manufacturing," Automation, Taipei, Taiwan, Nov. 2024.

Awards:

B.S., Department of Mechatronics Engineering, Hanoi University of Industry, Hanoi, Vietnam

Nationality: Vietnam

Research Topic: TBD

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Awards:

B.S., Department of Mechanical Engineering, National Center University,  Taoyuan, Taiwan

Nationality: Taiwan

Research Topic: TBD

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Awards:

B.S., Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan

Nationality: Taiwan

Research Topic: TBD

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Awards:

B.S., Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan

Nationality: Taiwan

Research Topic: TBD

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Awards:

B.S., Department of Systems Engineering and Technology, National Yang-Ming Chiao-Tung University, Hsinchu, Taiwan

Nationality: Taiwan

Research Topic: TBD

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Awards:

B.S., Department of Systems Engineering and Technology, National Yang-Ming Chiao-Tung University, Hsinchu, Taiwan

Nationality: Taiwan

Research Topic: TBD

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Awards:

B.S., Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan

Nationality: Taiwan

Research Topic: TBD

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Awards:

B.S., Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan

Nationality: Taiwan

Research Topic: TBD

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B.S., Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan

Nationality: Hong Kong

Research Topic: TBD

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B.S., Department of Mechanical Engineering, National Center University, Taoyuan, Taiwan

Nationality: Taiwan

Research Topic: TBD

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B.S., Department of Mechanical Engineering, National Center University, Taoyuan, Taiwan

Nationality: Taiwan

Research Topic: TBD

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B.S., Department of Mechanical Engineering, National Center University, Taoyuan, Taiwan

Nationality: Taiwan

Research Topic: TBD

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B.S., Department of Mechanical Engineering, National Ilan University, Ilan, Taiwan

Nationality: Taiwan

Research Topic: TBD

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B.S., Department of Mechanical Engineering, National Chung Hsing University, Taichung, Taiwan

Nationality: Taiwan

Research Topic: TBD

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B.S., Department of Mechatronics Engineering, National Changhua University of Education, Changhua, Taiwan

Nationality: Malaysia

Research Topic: TBD

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