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Saarbrucken, Germany

The global competition pressures manufacturers of machines, equipment and utility vehicles to optimize their constructions permanently. System partners like Hydac have proven themselves to be a valuable support in this because they not only undertake developmental functions for complete functional units but they also promote, to a great extent, technical innovations by means of their systems solutions. The results of such a "one-stop shop practice" are efficient, energy-saving and economically driven solutions. Source

Kemmetmuller W.,Vienna University of Technology | Fuchshumer F.,Hydac Electronic GmbH | Kugi A.,Vienna University of Technology
Control Engineering Practice | Year: 2010

The present paper deals with the pressure control of self-supplied variable displacement axial piston pumps subject to fast changing, unknown loads. First, the setup of the system and the mathematical model are described. As the pump is self-supplied, the mathematical model exhibits a switching right-hand side which makes the control design a challenging task. A nonlinear two degrees-of-freedom control strategy, comprising a feedforward and a feedback control, in combination with a load estimator is proposed for the pressure control. The proof of the stability of the overall closed-loop system is based on Lyapunov's theory. The performance of the control concept is verified by means of experiments. The results show that the proposed control concept has an excellent and robust behavior. © 2009 Elsevier Ltd. All rights reserved. Source

Hydac Electronic GmbH | Date: 2013-04-05

A System for exhaust gas treatment for internal combustion engines, having a pump (

Hydac Electronic GmbH | Date: 2014-06-14

An electromagnetic actuating apparatus, in particular a proportional magnet or switching magnet, comprising a magnet armature (

Hydac Electronic GmbH | Date: 2015-03-30

1. Fluid Processing Apparatus. 2. A fluid processing apparatus having a housing (

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