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09:35 ics Saal 4
Modiciency - Efficient industrial hydraulic drives through independent metering using optimal operating modes
Giacomo Kolks, TU Dresden, IFD, Germany
Jürgen Weber, TU Dresden, IFD
Independent metering poses a possibility of improving energy efficiency of throttle-controlled hydraulic single-rod cylinder drives. This paper deals with the volumetric potentials gained through variable circuitry that comes along with independent metering. A method of assessment of energetic potentials is described, based on load specific, optimal operating modes. As a means of yielding maximum energy efficiency for a wide range of applications, a smooth mode switching algorithm is proposed that minimizes losses and allows good motion tracking. The mode switching algorithm is validated in simulation and on a test stand.