Showing papers in "Mechatronics in 2005"

TL;DR: An adaptive sliding mode fuzzy control approach is proposed for a two-dimensional overhead crane, combining SMC's robustness and FLC's independence of system model, for both X- direction transport and Y-direction transport.

TL;DR: In the future, mobile robots will most probably navigate through the fields autonomously to perform different kinds of agricultural operations as mentioned in this paper, as most crops are cultivated in rows, an important ste...

TL;DR: In this article, an enhanced nonlinear PID (EN-PID) controller that exhibits the improved performance than the conventional linear fixed-gain PID controller is proposed, by incorporating a sector-bounded nonlinear gain in cascade with a conventional PID control architecture.

TL;DR: In this article, positive position feedback (PPF) is applied to the PZT actuators for suppressing multi-mode vibrations while slewing the single-link flexible manipulator.

TL;DR: In this paper, a modified pulse-width modulation (MPWM) valve pulsing algorithm allows on/off solenoid valves to be used in place of costly servo valves.

TL;DR: An adaptive neuro-fuzzy control system for controlling a flexible manipulator with variable payload is described, comprised of a fuzzy logic controller in the feedback configuration and two dynamic recurrent neural networks in the forward path.

TL;DR: In this paper, a proof-of-concept design of an inchworm-type piezoelectric actuator of large displacement and force for shape control and vibration control of adaptive truss structures is presented.

TL;DR: In this article, a linear lumped-parameter hand/arm model for the operator of a telemanipulation system is presented, where the human is modeled as a second order mass-spring-damper system.

TL;DR: In this paper, a new impedance controller for a bilateral teleoperation under a time delay is presented, where a dynamic characteristic at the operator-slave-environment interface is designed by a desired master impedance model.

TL;DR: In this article, an extensive set of experiments and a related mathematical model investigating the dynamics of pneumatic actuators controlled by on-off solenoid valves, whose opening and closing time response is based on a pulse width modulation (PWM) technique, is presented.

TL;DR: In this paper, the authors present a theoretical development and experimental results of a vehicle yaw stability control system based on generalized predictive control (GPC) method, which tries to predict the future yaw rate of the vehicle and then takes control action at present time based on future Yaw rate error.

TL;DR: In this article, an impedance control system utilizing a serial chain of a spring-damper is proposed for a vehicle platoon system in order to ensure the safety of the vehicle platoon, in spite of vehicle model error or noise in the measurement signal.

TL;DR: In this article, the authors proposed a steer-by-wire (SBW) system in a passenger car that replaces the typical mechanical linkage between the steering wheel and the front wheel with electric wires.

TL;DR: In this article, a self-tuning adaptive control strategy combined with cross-coupled control of axial motion is proposed to improve contouring performance of the retrofitted milling machine.

TL;DR: In a didactic approach to mechatronics, the academic subject can be defined according to four dimensions: identity, legitimacy, selection and communication as mentioned in this paper, and a result of defining the legitimacy of...

TL;DR: In this article, a hybrid electric brake system that combines a contact conventional hydraulic brake system (CBS) and a contactless Eddy current brake (ECB) system is proposed, and a vehicle and tire model was developed, and brake torque analysis was performed using an approximate theoretical model.

TL;DR: In this article, a fuzzy logic adaptive sliding mode controller has been proposed for motion tracking of a two-degree-of-freedom polar manipulator with a chattering index, which has been applied to a motion trajectory tracking task.

TL;DR: In this paper, a nonlinear observer-based principle combined with Wald's sequential test is proposed for detecting faults in electro-hydraulic servo-positioning systems using a non-linear observer.

TL;DR: In this article, a five degree-of-freedom (DOF) planar motion stage with an integrated surface encoder for position detection is presented. And the authors demonstrate that the stage can be controlled independently in the five DOF with a positioning resolution of 50nm and a settling time of 50 milliseconds.

TL;DR: In this article, a project to enhance the mechatronics/microcontroller education of mechanical engineering students at the University of South Carolina is presented, where the use of functional modules for teaching interfacing skills is described.

TL;DR: In this article, a hybrid adaptive neuro-fuzzy model reference controller (ANFMRC) was proposed to enhance the controller performance for the pneumatic system, and the concept of multimode switching was applied to activate either a bang-bang controller or an adaptive neurofuzzY model-reference controller.

TL;DR: In this paper, a new control scheme for single-link flexible very lightweight robots is presented, which is strain gauge based and consists of two nested loops: an internal loop that controls the motor dynamics; and an external loop that allows the tip to be positioned in space.

TL;DR: Alasty et al. as discussed by the authors presented a new approach for controlling SMA actuators with hysteresis compensation by using two energy-based semi active controllers, which are more efficient than ordinary PID controllers.

TL;DR: In this paper, a large stroke and high precision pneumatic-piezoelectric hybrid positioning control system was investigated, which consists of a PNE and a PPE actuator combined in cascade.

TL;DR: In this article, a complete state-space mathematical model for a motor-mechanism system is first developed and numerically simulated to demonstrate the crank angular speed fluctuations for the case of a constant voltage supply.

TL;DR: In this article, the authors considered the problems of excitation and synchronization of oscillations in two coupled double pendulum mechatronic systems and obtained the Pulse-modulated control law for oscillation excitation/synchronization via the speed gradient method.

TL;DR: A model-free model reference adaptive fuzzy sliding mode controller (MRAFSC) is proposed to control a five degree-of-freedom (DOF) robot to improve control performance, stability and robustness.

TL;DR: In this article, an approach for active robust shape control of flexible structures is developed using piezoceramic actuators and strain sensors. And the control system robustness of flexible structure with parameter perturbation uncertainty is discussed.

TL;DR: In this paper, a molding process simulation with optimization methodology is utilized to improve the stability and accuracy of the reference plane at micron level precision in a plastic optical housing for a CD optical pickup.

TL;DR: A volumetric model implemented through a 3D voxel map is generated from the object CAD model and used to define a sensing plan composed of a set of viewpoints and the respective scanning trajectories.