ABSTRACT

Mobile manipulators process strongly coupled dynamics of mobile platforms

and manipulators. If we assume known dynamics, feedback linearization can

be utilized to design nonlinear control, which has attracted a great deal of

research interest in recent years. The central idea of the approach is to alge-

braically transform a nonlinear system dynamics into a (fully or partly) linear

one, so that linear control techniques can be applied. In [101], input-output

feedback linearization was applied to control the mobile platform such that

the manipulator can be positioned at the preferred configurations measured by

its manipulability. In [61], using nonlinear feedback linearization and decou-

pling dynamics, force/position control of the end-effector was proposed and

applied to nonholonomic cart pushing. In [102], the dynamic interaction effect

between the manipulator and the mobile platform of a mobile manipulator

was studied, and nonlinear feedback control for the mobile manipulator was

developed to compensate for the dynamic interaction. In [62], coordination

control of mobile manipulators was presented with two basic task-oriented

controls: end-effector task control and joint posture control.