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A robot with two independent driving wheels is used popularly as a service robot. Therefore, there is a lot of research on the autonomous locomotion. The robot with two independent driving wheels has a nonholonomic constraint in its model, so that it needs a specific control method when controlling it. In this research, we use an invariant manifold for solving such a nonholonomic constraint. The controller...
In this research, it is aimed at guiding an X4-Flyer, which is a VTOL type UAV, to an arbitrary target point. In the previous research, we proposed a controller for an X4-Flyer to move on the X-Y plane by using a 2-dimensional harmonic potential field (HPF), assuming that the X4-Flyer keeps its altitude constantly. In this paper, the controller guides the X4-Flyer to an arbitrary target point in a...
This paper deals with a switching control method for underactuated manipulators. This method selects a partially-stable controller from a number of partially-stable controllers which are designed fuzzy reasoning. We design switching rules on an error energy plane, in which boundary curves to split an energy plane into utilized partially-stable controllers describe fuzzy rules. In this study, we consider...
Control approaches for nonholonomic systems have utilized canonical forms. A nonholonomic double integrator model is the one of canonical forms for nonholonomic systems. Outputs of the controller based on the nonholonomic double integrator model are velocity commands for the kinematic model of a nonholonomic system. In this paper, we consider an extended nonholonomic double integrator model, in which...
A system with nonholonomic constraints attracts its attention from the viewpoint of control theory because any conventional control cannot be applied directly to such a system. Since it cannot be stabilized by a static continuous feedback with constant gains, there are several control methods up to now by using a chained form etc. Among them, a switching control method using invariant manifold, which...
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