Rudolf Scheidl, Bernhard Manhartsgruber, Bernd Winkler,
"Hydraulic Switching Control - Principles and State of the Art"
, in M. Linjama and A. Laamanen: Proceedings of the First Workshop on Digital Fluid Power, 3rd October 2008, Tampere, Finland, Seite(n) 31-49, 10-2008, ISBN: 978-952-15-2037-2
Hydraulic Switching Control - Principles and State of the Art
Sprache des Titels:
Proceedings of the First Workshop on Digital Fluid Power, 3rd October 2008, Tampere, Finland
Today, switching control is the common method to control electrical drives and
replaced former drive control technologies nearly totally. Several researchers orally
report about their trials to apply switching principles in hydraulics and that they gave up
due to several hard problems encountered, such as great noise. In the work of the
authors’ research group it turned out that switching control can be applied to hydraulics
as well with a substantial improvement of efficiency, the possibility of energy
recuperation, and a cost reduction compared to proportional valve techniques.
Numerous converter principles are conceivable. But whatever principle is realized it
requires fast switching- and check- valves, fast response and compact accumulators, a
compact arrangement of all components affected by the switching processes, and a
sound understanding of fast hydraulic processes.