Abstract: The paper deals with electrohydraulic supply systems with variable (adjustable( supply pressures. Two control concepts are used in practice: the pressure control concept using a variable pump and constant speed of the driving electric motor as the commonly used concept, and the pressure control concept with a constant pump and a speed-controlled electric motor as the alternative concept. The typical features and the applicability of both conceps, as well as their dynamic responses are studied in this work.Keywords: automatic control engineering, hydraulic systems, pressure control, constant pumpsPublished in DKUM: 31.05.2012; Views: 2408; Downloads: 0
