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Prof. Dr. László Juhász

  • Modellierung, Parameteridentifikation und Echtzeitsimulation mechatronischer Systeme
  • Regelung mechatronischer Systeme
  • Modellbasierte Steuergerätecode-Entwicklung und -Absicherung
  • Modellbasierter Entwurf und Absicherung von FPGA-basierten Anwendungen
  • Mathematik

Fakultät Elektrotechnik und Medientechnik

Professorinnen und Professoren

Dekan

E 206

0991/3615-532

0991/3615-297

Sortierung:
Beitrag in Sammelwerk/Tagungsband
  • Đ. Garabandić
  • T. Petrović
  • László Juhász

Robust decentralised control of parallel DC/DC converters.

pg. 563-570

(1995)

Beitrag in Sammelwerk/Tagungsband
  • László Juhász
  • Đ. Garabandić
  • M. Živanov

Digital regulation of the BUCK DC/DC converter.

pg. 513-521

(1997)

Zeitschriftenartikel
  • M. Peruničić
  • László Juhász
  • A. Sadibašić

The dynamics of a conical gravity flow tank.

In: Chemical Industry (Belgrad, Serbien) (vol. 51) , pg. 24-27

(1997)

Beitrag in Sammelwerk/Tagungsband
  • László Juhász
  • Đ. Garabandić
  • M. Živanov

BUCK DC/DC converter controlled by microcontroller.

pg. 135-140

(1997)

Zeitschriftenartikel
  • M. Peruničić
  • László Juhász

Dynamics of a spherical gravity flow tank.

In: Documenta Chemica Yugoslavica (vol. 39) , pg. 85-88

(1997)

Beitrag in Sammelwerk/Tagungsband
  • László Juhász
  • A. Vujanić
  • N. Adamović
  • T. Lozanovski
  • L. Nagy
  • B. Borovac

Platform for micropositioning with piezo-actuators.

pg. 103-106

(1998)

Zeitschriftenartikel
  • M. Peruničić
  • László Juhász

Contribution to analysis of proportional and proportional-integral liquid-level control in cylindrical flow tank.

In: Documenta Chemica Yugoslavica (vol. 40)

(1998)

Beitrag in Sammelwerk/Tagungsband
  • László Juhász
  • T. Lozanovski
  • N. Adamović
  • A. Vujanić
  • L. Nađ
  • B. Borovac

Realisation testing of platform for micro positioning using piezo-actuators.

pg. 285-288

(1998)

Beitrag in Sammelwerk/Tagungsband
  • L. Nađ
  • László Juhász

Design of CMOS buffers for driving large capacitive loads using PsPICE.

pg. 35-38

(1998)

Zeitschriftenartikel
  • László Juhász
  • M. Peruničić
  • T. Kuljanin

Simulational dynamic model of a chemical reactor.

In: Chemical Industry (Belgrad, Serbien) (vol. 52) , pg. 279-285

(1998)

Beitrag in Sammelwerk/Tagungsband
  • László Juhász
  • N. Pekarić-Nađ
  • L. Nađ

EMI-oriented macromodel for operational amplifier μA741.

pg. 49-52

(1998)

Zeitschriftenartikel
  • László Juhász
  • S. Markov
  • L. Nađ
  • B. Borovac
  • A. Vujanić
  • N. Adamović

Moving platform for sample micropositioning.

In: Chemical Industry (vol. 54) , pg. 243-257

(2000)

Beitrag in Sammelwerk/Tagungsband
  • László Juhász
  • A. Vujanić
  • N. Adamović
  • L. Nagy
  • B. Borovac

Development of Platform for Micro-Positioning Actuated by Piezo-Legs.

pg. 3647-3653

(2000)

Zeitschriftenartikel
  • László Juhász
  • A. Vujanić
  • N. Adamović
  • L. Nagy
  • B. Borovac

A platform for micropositioning based on piezo legs.

In: Mechatronics (vol. 11) , pg. 869-897

(2001)

DOI: 10.1016/S0957-4158(00)00059-3

Abstract anzeigen

In this paper, we describe the development and prototype testing of a platform for micropositioning having three legs made of piezo tubes. Each piezo tube has four outer electrodes and one common inner electrode on its walls. By appropriate polarization of outer(s) electrode(s) with respect to the inner electrode, due to the inverse piezo effect, the tube wall will change its longitudinal dimension and the tube will bend in the corresponding direction. The platform motion is performed by successive slow bending and quick stretching of the tubes (i.e., legs). At this stage of development, the platform is connected by five wires to a power supply and a PC. The range of platform motion is limited only by the length of the wires connecting it to the power source. Electronic circuits for generating appropriate voltage signals are designed to be as simple as possible. This enabled the complete electronics and microcontroller for motion control to be placed onboard. The microcontroller is capable of realizing all operations needed for the motion execution and the communication with PC (containing the information about motion direction and step amplitude) can be done using a standard RS-232 interface. It was experimentally verified that, though being of a simple design, the platform allows a positioning accuracy which is below Full-size image (<1 K). Even more accurate positioning (below Full-size image (<1 K)) can be achieved in the “only bending” mode by simultaneous bending of all legs in a desired direction and without executing the legs' stretching. The platform capability to accomplish controlled complex motion using different motion velocities was demonstrated. Using a joystick, translation and rotation are easily achievable and the motion can be controlled in real time. Platform loading capacity allows some additional devices like a gripper, or any another device for a particular application to be mounted onboard. This enables the platform's potential use in a wide variety of applications.
Zeitschriftenartikel
  • D. Skobalj
  • Z. Zavargó
  • László Juhász

Water temperature distribution in a vertical cross-section of a wet counterflow cooling tower.

In: Hungarian Journal of Industrial Chemistry (vol. 30) , pg. 1-5

(2002)

Beitrag in Sammelwerk/Tagungsband
  • László Juhász
  • F. Schütte
  • K. Diekstall

Use of rapid control prototyping (RCP) and hardware in the loop (HIL) technology for development and tests of Aerospace applications.

(2007)

Beitrag in Sammelwerk/Tagungsband
  • László Juhász
  • F. Schütte
  • S. Lillwitz

AFDX for Airplanes.

(2007)

Beitrag in Sammelwerk/Tagungsband
  • László Juhász
  • A. Kiffe
  • J. Maas

Modellierung und Regelung eines hybriden Nanopositionierungssystems.

pg. 161-174

(2009)

Beitrag in Sammelwerk/Tagungsband
  • László Juhász
  • A. Kiffe
  • J. Maas

FPGA-Based Interface for Control of a Hybrid Micropositioning Stage.

pg. 2862-2867

(2009)

Beitrag in Sammelwerk/Tagungsband
  • László Juhász
  • A. Kiffe
  • J. Maas
  • B. Borovac

FPGA-Based Interface for Fast Data Exchange between a Rapid Control Prototyping System and a Hybrid Micropositioning Stage.

(2009)

Beitrag in Sammelwerk/Tagungsband
  • László Juhász
  • J. Maas
  • J. Tasevski
  • B. Borovac

Multiplicative and Additive Piezoelectric Hysteresis Compensation Methods for Real-Time Micropositioning Applications.

(2010)

Beitrag in Sammelwerk/Tagungsband
  • László Juhász
  • T. Fichtner
  • A. Kiffe
  • J. Maas

Model-Based State-Space Control of Hybrid Micropositioning Systems.

pg. 324-331

(2010)

Beitrag in Sammelwerk/Tagungsband
  • László Juhász
  • A. Kiffe
  • J. Maas

Friction and Hysteresis Compensation of a Hybrid Micro-Positioning System.

pg. 268-271

(2010)

Beitrag in Sammelwerk/Tagungsband
  • J. Maas
  • László Juhász

Adaptive Regelung für piezoelektrisch-basierte Hybridsysteme.

pg. 93-101

(2011)

Zeitschriftenartikel
  • László Juhász
  • J. Maas

FPGA-Based Control of Piezoelectric Actuators.

In: Serbian Journal of Electrical Engineering (vol. 8) , pg. 181-201

(2011)

DOI: 10.2298/SJEE1102181J

Beitrag in Sammelwerk/Tagungsband
  • László Juhász
  • J. Maas

Online Controller Optimization for Hybrid Micropositioning Systems.

pg. 820-825

(2011)

Beitrag in Sammelwerk/Tagungsband
  • László Juhász
  • J. Maas

State-Space Control of Hybrid Micropositioning Systems for Industrial Applications.

pg. 31-36

(2011)

Zeitschriftenartikel
  • László Juhász
  • J. Maas
  • B. Borovac

Parameter identifications and hysteresis compensation of embedded piezoelectric stack actuators.

In: Mechatronics (vol. 21) , pg. 329-338

(2011)

DOI: 10.1016/j.mechatronics.2010.12.006

Abstract anzeigen

A novel method for the identification of embedded piezoelectric stack actuator parameters in combination with a real-time capable hysteresis compensation measure is presented. The presented algorithms are based on the Maxwell resistive capacitor model and are particularly useful for the identification of piezoelectric actuators embedded in a high-precision micropositioning system where the disassembly of the complete system for separate actuator identification is not recommended or not possible. The parameter identification can be performed in a fully automated way and enables the adaptation of the compensation routine to the changed circumstances (temperature difference, wearing of actuators) as well. The hysteresis compensation method proposed here does not require significant CPU or memory resources. It can be implemented as an additional task on the already existing controller or a low-budget FPGA. As an example, the proposed method was validated experimentally by the parameter identification and hysteresis compensation of the piezoelectric actuators incorporated in a commercially available hybrid micropositioning system. The achieved experimental results are in very good agreement with the theoretical ones.
Beitrag in Sammelwerk/Tagungsband
  • F. Schütte
  • László Juhász
  • A. Tenge

Integration of EtherCAT in Advanced Test Systems - Solutions and Challenges.

(2013)

Zeitschriftenartikel
  • László Juhász
  • J. Maas

Control of Hybrid Nanopositioning Systems for Trajectory-Tracking Applications.

In: Mechatronics (vol. 23) , pg. 617-629

(2013)

DOI: 10.1016/j.mechatronics.2013.06.008

Abstract anzeigen

In many industrial applications positioning systems are required to follow trajectory paths in the range of several centimeters and featuring at the same time a nanometre-range precision. Neither pure piezoelectric stages nor standard positioning systems with motor and spindle are able to meet such requirements as a single actuator, because of the small operation range on the one hand and inadequacies like backlash and friction on the other hand. Hybrid positioning systems, realized as a combination of a “coarse” and a “fine” actuator, aim to solve this problem. The wide range of applications enables a considerable market potential for such devices, but yields changing control requirements due to the high variety of possible positioned objects and positioning tasks and requires therefore a high-performance control system. In this paper a model-based control design for piezoelectric hybrid nanopositioning systems is presented. The proposed control consists of a multivariable state-feedback control on the basis of a novel plant representation offering a sufficient robustness. The designed control is realized and experimentally tested with a commercially available hybrid nanopositioning system featuring a DC drive, representing the coarse actuator, and a piezoelectric actuator utilized as fine actuator.
Patentschrift
  • László Juhász

Computerimplementiertes Verfahren zur Berechnung und Ausgabe von Steuerimpulsen durch eine Steuereinheit.

(2015)

Patentschrift
  • László Juhász

Verfahren zur Konfiguration eines für das Testen eines Steuergeräts eingerichteten Testgeräts.

(2016)

Patentschrift
  • László Juhász
  • J. Lakemeier

Method for configuring a tester equipped for testing a control unit.

(2019)

Zeitschriftenartikel
  • I. Juhász Junger
  • D. Wehlage
  • R. Döttjer
  • T. Grothe
  • László Juhász
  • C. Grassmann
  • T. Blachowicz
  • A. Ehrmann

Dye-Sensitized Solar Cells with Electrospun Nanofiber Mat-Based Counter Electrodes.

In: Materials (vol. 11) , pg. 1604

(2018)

DOI: 10.3390/ma11091604

Abstract anzeigen

Textile-based dye-sensitized solar cells (DSSCs) can be created by building the necessary layers on a textile fabric or around fibers which are afterwards used to prepare a textile layer, typically by weaving. Another approach is using electrospun nanofiber mats as one or more layers. In this work, electrospun polyacrylonitrile (PAN) nanofiber mats coated by a conductive polymer poly(3,4-ethylenedioxythiopene) polystyrene sulfonate (PEDOT:PSS) were used to produce the counter electrodes for half-textile DSSCs. The obtained efficiencies were comparable with the efficiencies of pure glass-based DSSCs and significantly higher than the efficiencies of DSSCs with cotton based counter electrodes. The efficiency could be further increased by increasing the number of PEDOT:PSS layers on the counter electrode. Additionally, the effect of the post treatment of the conductive layers by HCl, acetic acid, or dimethyl sulfoxide (DMSO) on the DSSC efficiencies was investigated. Only the treatment by HCl resulted in a slight improvement of the energy-conversion efficiency.
Beitrag in Sammelwerk/Tagungsband
  • Amir Samiee
  • J. Sahu
  • Nicolas Tiefnig
  • Michael Wagner
  • A. Baumgartner
  • László Juhász

Model-Driven Engineering in Education.

  • In:
  • Faculty of Mechanical Engineering, Brno University of Technology
  • Institute of Electrical and Electronics Engineers Inc.

pg. 9-14

(2018)

Zeitschriftenartikel
  • László Juhász
  • I. Juhász Junger

Spectral Analysis and Parameter Identification of Textile-Based Dye-Sensitized Solar Cells.

In: Materials (vol. 11) , pg. 1623

(2018)

DOI: 10.3390/ma11091623

Vortrag
  • László Juhász
  • J. Sahu
  • Amir Samiee
  • Nicolas Tiefnig
  • Michael Wagner

Model-Driven Engineering in Education: Position Control of an Electronic Throttle Valve.

Palić, Serbien 11-14.06.2018.

(2018)

Vortrag
  • Amir Samiee
  • J. Sahu
  • Nicolas Tiefnig
  • Michael Wagner
  • A. Baumgartner
  • László Juhász

Model-Driven Engineering in Education.

  • Brno University of Technology.

Brno, Tschechische Republik 5.-7.12.2018.

(2018)

Beitrag in Sammelwerk/Tagungsband
  • László Juhász
  • Amir Samiee
  • W. Engelbrecht

XCP Service Integration for Model-Based, Automatic Production Code Generation.

  • In:
  • Institute of Electrical and Electronics Engineers Inc.

pg. 1-6

DOI: 10.1109/EUROCON.2019.8861774

(2019)

Beitrag in Sammelwerk/Tagungsband
  • Alireza Tajafari Sahebi
  • Amir Samiee
  • László Juhász

MRAC Implementation for Electric Throttle Valve.

pg. 6-12

DOI: 10.1109/ACIT49673.2020.9208929

(2020)

Beitrag in Sammelwerk/Tagungsband
  • Shivam Yadav
  • Alireza Tajafari Sahebi
  • László Juhász

Adaptive Model Predictive Controller for Inverted Pendulum.

  • In:
  • Institute of Electrical and Electronics Engineers Inc.

pg. 208-213

DOI: 10.1109/ACIT52158.2021.9548562

(2021)

Beitrag in Sammelwerk/Tagungsband
  • Christoph Rappl
  • László Juhász

Improving the Plant’s Phase Response by Asymmetrical Lead/Lag Compensation of a given Phase and Slope Deficit.

IEEE pg. 4232-4239

DOI: 10.23919/CCC63176.2024.10662368

(2024)

Sonstiges

Ein Video über einen Abschlussarbeit der in Labor Modellbasierte Reglerentwurf und Absicherung durchgeführt wurde

https://nextcloud.th-deg.de/s/F5jnrG2B2YzHL64