Novel Algorithm for Effective Position/Force Control

This paper presents a novel algorithm for simultaneous position and interaction force control. In the classical algorithms, position and force control are executed concurrently by switching between two separate controllers: the position and force controller. Thus, one can consider the control system working in two modes, namely the position control and force control modes. Switching between these two modes often leads to oscillations in the controlled position and force. Therefore, the safe interaction between a controlled mechanical system and its environment is jeopardized. The above issues are tackled in this study by introducing a new control strategy. The proposed algorithm combines position and force control into a single controller, in which the transition between position and force control is smooth, removing the oscillations of classical methods. Therefore, the safe interaction between a mechanical system and its environment is enabled. In addition, using this method one can equip actuators with a control system capable of performing both position and force control. Thus, a step towards “smart actuators” is possible.

[1]  Toshiyuki Murakami,et al.  Observer-based motion control-application to robust control and parameter identification , 1993, Proceedings 1993 Asia-Pacific Workshop on Advances in Motion Control.

[2]  Piotr Gierlak,et al.  Adaptive position/force control for robot manipulator in contact with a flexible environment , 2017, Robotics Auton. Syst..

[3]  Tsuneo Yoshikawa,et al.  Dynamic hybrid position/force control of robot manipulators description of hand constraints and calculation of joint driving force , 1986, Proceedings. 1986 IEEE International Conference on Robotics and Automation.

[4]  Guanghui Wen,et al.  Discrete-Time Fast Terminal Sliding Mode Control for Permanent Magnet Linear Motor , 2018, IEEE Transactions on Industrial Electronics.

[5]  Kouhei Ohnishi,et al.  TORQUE - SPEED REGULATION OF DC MOTOR BASED ON LOAD TORQUE ESTIMATION METHOD. , 1983 .

[6]  Oussama Khatib,et al.  A unified approach for motion and force control of robot manipulators: The operational space formulation , 1987, IEEE J. Robotics Autom..

[7]  Kouhei Ohnishi,et al.  Disturbance observer and kalman filter based motion control realization , 2018 .

[8]  Hua Deng,et al.  Precise Position Synchronous Control for Multi-Axis Servo Systems , 2017, IEEE Transactions on Industrial Electronics.

[9]  Andrew A. Goldenberg,et al.  Force and position control of manipulators during constrained motion tasks , 1989, IEEE Trans. Robotics Autom..

[10]  Qian Chen,et al.  Sensorless Control of a Linear Permanent-Magnet Motor Based on an Improved Disturbance Observer , 2018, IEEE Transactions on Industrial Electronics.

[11]  Matthew T. Mason,et al.  Compliance and Force Control for Computer Controlled Manipulators , 1981, IEEE Transactions on Systems, Man, and Cybernetics.

[12]  Asif Sabanovic,et al.  Challenges in Motion Control Systems , 2017 .

[13]  John J. Craig,et al.  Hybrid position/force control of manipulators , 1981 .

[14]  Thierry Poinot,et al.  Sensorless Force/Position Control of a Single-Acting Actuator Applied to Compliant Object Interaction , 2015, IEEE Transactions on Industrial Electronics.

[15]  Changliang Xia,et al.  Generalized Predictive Contour Control of the Biaxial Motion System , 2018, IEEE Transactions on Industrial Electronics.

[16]  Qingsong Xu,et al.  Design and Smooth Position/Force Switching Control of a Miniature Gripper for Automated Microhandling , 2014, IEEE Transactions on Industrial Informatics.

[17]  Esmaeel Khanmirza,et al.  Hybrid force/position control of robotic arms manipulating in uncertain environments based on adaptive fuzzy sliding mode control , 2018, Appl. Soft Comput..

[18]  Toshiyuki Murakami,et al.  Torque sensorless control in multidegree-of-freedom manipulator , 1993, IEEE Trans. Ind. Electron..

[19]  Joseph Duffy,et al.  The fallacy of modern hybrid control theory that is based on "orthogonal complements" of twist and wrench spaces , 1990, J. Field Robotics.

[20]  Joris De Schutter,et al.  Invariant Hybrid Force/Position Control of a Velocity Controlled Robot with Compliant End Effector Using Modal Decoupling , 1997, Int. J. Robotics Res..

[21]  Rui Cortesão,et al.  Robot Force Control on a Beating Heart , 2017, IEEE/ASME Transactions on Mechatronics.

[22]  B. Siciliano,et al.  Force/position regulation of compliant robot manipulators , 1994, IEEE Trans. Autom. Control..

[23]  Kouhei Ohnishi,et al.  Motion Control Systems , 2011 .

[24]  Ken Chen,et al.  Jamming Analysis and Force Control for Flexible Dual Peg-in-Hole Assembly , 2019, IEEE Transactions on Industrial Electronics.

[25]  Naveen Kumar,et al.  Efficient position/force control of constrained mobile manipulators , 2018, International Journal of Dynamics and Control.

[26]  Yang Song,et al.  Adaptive Robust Cascade Force Control of 1-DOF Hydraulic Exoskeleton for Human Performance Augmentation , 2017, IEEE/ASME Transactions on Mechatronics.

[27]  Tom Oomen,et al.  Advanced motion control for precision mechatronics: control, identification, and learning of complex systems , 2018 .

[28]  Qingsong Xu,et al.  Design and Precision Position/Force Control of a Piezo-Driven Microinjection System , 2017, IEEE/ASME Transactions on Mechatronics.

[29]  A. D. Luca,et al.  On the modeling of robots in contact with a dynamic environment , 1991 .

[30]  Kouhei Ohnishi,et al.  Motion control for advanced mechatronics , 1996 .