Position Control by Electro-Magnetic Force

Position and Force Control by Reaction Compensation

The paper presents a new position/force controller, based on the philosophy of the parallel approach. The controller exploits the reaction compensation action of the inverse dynamics position controller and achieves superior transient performance. It incorporates a velocity dependent damping term. Stability is established and conditions for the control parameters are derived. Performance of the...

Robust Position Control of Electro-mechanical Systems

In this work, the robust position control scheme is proposed for the electro-mechanical system using the disturbance observer and backstepping control method. To the external unknown load of the electro-mechanical system, the nonlinear disturbance observer is given to estimate the external unknown load. Combining the output of the developed nonlinear disturbance observer with backstepping techn...

Kinematic Hybrid Position/Force Control

The paper aims to describe kinematic hybrid position/force control for a three-degree-of-freedom (3-DOF) in-parallel actuated manipulator, and its application to peg-inhole task about 10μm clearance. The control system consists of a low-level position servo driven by force feedback in base coordinates. The computation required for the control is only inverse kinematics, which is very simple for...

Hybrid Position / Force Control of Manipulators 1

A new conceptually simple approach to controlling compliant motions of a robot manipulator is presented. The "hybrid" technique described combines force and torque information with positional data to satisfy simultaneous position and force trajectory constraints specified in a convenient task related coordinate system. Analysis, simulation, and experiments are used to evaluate the controller's ...

Mechanical analogies in hybrid position/force control