onventional linear control schemes often fail to provide C precise positioning of a control object under the influence of friction, deadzone, saturation, etc. This article proposes a highprecision control scheme for a precise point-to-point positioning system, called an X-Y table, even under the above-noted influences. The proposed scheme is composed of a fuzzy precompensator and a PD controlle...

Because of their parallelism, functional approXimation and learning capabilities, artificial neural networks can be effectively employed to apjmximate nonlinear functions, and to synthesize controllers for nonlinear dynamic systems. The use of dynamic neural networks to model and control dynamic systems is of great importance in the control paradigm. The intent of this paper is to use one such ...

The car following model is a key element in driver behavior modeling. A PD controller car-following model is a popular and realistic model. A big problem met in designing driver behavior models is the absence of reliable data from the real traffic. However, experiments using an instrumented vehicle driven in the real world supplied the radar tracking data. This paper first analyzes the desired ...

The purpose of this paper is to propose a GSA-tuning IPD control technique for magnetic suspension systems. An educational demonstration on a magnetic-field sensed magnetic suspension system is examined for effectiveness. For the magnetic-field sensed magnetic suspension system (FSMSS), the current transducer is employed for measuring the electromagnetic coil current, and a Hall effect device i...

For a class of robot arms, a proportional derivative (PD) controller plus gravity compensation yields the global asymptotic stability for regulation tasks, and some proportional-integral-derivative (PID) controllers guarantee local regulation without gravity cancellation. However, these controllers cannot render asymptotic stability for tracking tasks. In this paper, a simple decentralized cont...

ITL October 1996, a research and development task um initiated at JPL to develop and demonstrate nonlinear contact control schemes for the dexterous robotic arms planned for the Space Station. This paper reports on the progress made to-date in this task. Specifically, the paper introduces a new class of contact controllers comprised of a nonlinear gain in cascade with a linear jixedgain PIforce...

A fuzzy control scheme is proposed for the system of filling and draining off water of the rubber dam(FDWRD) which is a typical nonlinear, multivariables, timevarying and strong coupling control system base on traditional PID control or model-based control methods can not meet its constant flow sufficient drainage control requirements, during to it couldn‘t be established accurate mathematical ...

*Correspondence: [email protected] 1College of Automation, Nanjing University of Posts and Telecommunications, Nanjing, 210003, China Full list of author information is available at the end of the article Abstract In this paper, we put forward a fractional-order survival red blood cells model and study the dynamics through the Hopf bifurcation. When the delay transcends the threshold, a...

The purpose of this paper is to make a contribution for solving one of the major drawbacks for using fractional controllers: the controller implementation. In digital form, this is usually done by using a truncated version of the Grundwald-Letnikov formula for fractional derivative. In this work, experimental results are given comparing this method for digital implementation of a fractional PD ...

In this article the designing method of a fuzzy speed controller for DC drives is presented. The designing phase consists of choosing the number of membership functions for input/output and constructing the minimal rule base. The design phase is completed with tuning the input/output membership functions using genetic algorithm. The difference between the actual and the expected transfer functi...