Optimal Operation of a Hybrid Hydraulic Electric
Jul 01, 2020 · In recent years several novel hydraulic architectures have been proposed with the intention of significantly increasing system efficiency. Two of these architectures, Steigerung der Energieeffizienz in der Arbeitshydraulik mobiler Arbeitsmaschinen (STEAM), and the Hybrid Hydraulic-Electric Architecture (HHEA), use a system of multiple common pressure rails (CPRs) to serve the multiple …
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The Next Generation of Fluid Power Systems - ScienceDirect
Jan 01, 2015 · E-mail address: [email protected] Dynamics and Vibroacoustics of Machines (DVM2014) The next generation of fluid power systems Milos Vukovic*, Hubertus Murrenhoff Institute for Fluid Power Drives and Controls, RWTH Aachen University Steinbachstraße 53, Aachen 52074 Germany Abstract Over the past half century the fluid power
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Hydraulic Hybrid Architecture for Excavators | Request PDF
The pressure setting level of the 4S4 valve is slightly lower than the battery pressure Fig. 3 Hybrid drive systems of hydraulic excavators with distribution valves [11] after braking the
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Digital Displacement Excavator Test and Analysis
STEAM hydraulic hybrid excavator developed by RWTH Aachen University is another notable contribution [13]. As previously mentioned, DEXTER was the first demonstration of applying digital displacement pumps to an excavator. Researchers at Artemis took a 16 tonne JCB JS160 tracked excavator with a negative flow control hydraulic system and
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Efficiency improvement and evaluation of electric
Oct 15, 2017 · As shown in Fig. 1, the system is composed of an electro-hydraulic power source, a hydraulic control system, joysticks, a controller and some sensors.In the electro-hydraulic power source, a frequency converter is used to control the electric motor speed, and a displacement variable pump which the pressure and flow can be continuously tunable is used to supply pressure oil.
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A Hybrid Hydraulic-Electric Architecture (HHEA) for High
Two novel hydraulic architectures, STEAM (Steigerung der Energieeffizienz in der Arbeitshydraulik mobiler Arbeitsmaschinen ) proposed by researchers at RWTH Aachen [2] and the Hybrid Hydraulic
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The Next Generation of Fluid Power Systems
IFAS has risen to the challenge by developing the STEAM mobile hydraulic system [7]. Unlike other designs, this architecture is based on a holistic design approach, which considers both the
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Sustainability | Free Full-Text | Bio-Based Hydraulic
Vukovic, M. Hydraulic Hybrid Systems for Excavators. Ph.D. Thesis, RWTH Aachen University; Shaker Verlag GmbH, Aachen, Germany, 2017. [Google Scholar] Busch, R. Sektorstudie zum Aufkommen und zur Stofflichen und Energetischen Verwertung von Ölen und Fetten in Deutschland (2011–2016); Fachagentur Nachwachsende Rohstoffe e.V.: Gülzow, Germany
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Hydraulic Hybrid Architecture for Excavators
May 25, 2016 · Within the scope of a publi- cally fundend project, the IFAS at the RWTH Aachen University has spent the last three years developing a hydraulic hybrid architecture for excavators. The system Univ.-Prof. Dr.-Ing. has been implemented in an 18 t wheeled excavator Hubertus Murrenhoff is Head of the Institute for Fluid and recently validated in field tests.
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Performance enhancement of hybrid hydraulic excavator
Vukovic M and Milos D-I. STEAM-a hydraulic hybrid architecture for excavators. In: Proceedings of the 10th international fluid power conference, Dresden, 8-10 March 2016, https://publications.rwth
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A Hydraulic Hybrid Architecture - RWTH Publications
A Hydraulic Hybrid Architecture combining an Open Center with a Constant Pressure System for Excavators Seiji Hijikata*, Philipp Weishaar*, Ken Sugimura*, Katharina Schmitz* and Hubertus Murrenhoff* RWTH Aachen University, Institute for Fluid Power Drives and Controls (IFAS), Campus-Boulevard 30, 52074 Aachen, Germany*
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Hydraulische Hybridarchitektur für Bagger | SpringerLink
Aug 22, 2016 · Japan Construction Machinery and Construction Association for Hydraulic Excavators, 2007. Google Scholar [8] Vukovic, M.; Leifeld, R.; Murrenhoff, H.: STEAM — a hydraulic hybrid architecture for excavators. 10th International Fluid Power Conference, …
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Reducing Fuel Consumption in Hydraulic Excavators—A
Mobile machines, especially excavators, still consume considerable amounts of fuel during their operating lifetimes. This is not only undesirable in economic terms but also adversely affects our environment. The following paper discusses methods to lower fuel consumption by conducting a comprehensive analysis of the components comprising a hydraulic excavator and the cycles these …
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A Hydraulic Hybrid Architecture combining an Open Center
Hijikata, Seiji 3/21/2018 A Hydraulic Hybrid Architecture combining an Open Center with a Constant Pressure System for Excavators 1 Hijikata Seiji
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The Next Generation of Fluid Power Systems
Fig. 3. Cyclic movements of excavator. An advantage of STEAM is that simple off-the-shelf components are used and the system intelligence is no longer placed in the hydraulic hardware but rather in the control software, Figure 4(a). The system can be thought of as a hydraulic hybrid.
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Optimal Control and Energy-Saving Analysis of Common
Oct 21, 2020 · In recent years several novel hydraulic architectures have been proposed with the intention of significantly increasing system efficiency. Two of these architectures, Steigerung der Energieefflzienz in der Arbeitshydraulik mobiler Arbeitsmaschinen (STEAM), and the Hybrid Hydraulic-Electric Architecture (HHEA), use a system of multiple common pressure rails (CPRs) to serve the multiple …
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STEAM – a hydraulic hybrid architecture for excavators - CORE
Dec 31, 2015 · During the past three years the Institute for Fluid Power Drives and Controls in Aachen has developed a new hydraulic system for mobile machinery called STEAM. The system represents a new step in excavator hydraulics, as it aims to reduce both the hydraulic system losses as well as those of the internal combustion engine by using a hybrid
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STEAM – Hydraulic Hybrid Architecture for Excavators
Since early 2013 the Institute for Fluid Power Drives and Controls at RWTH Aachen University has been developing and testing the new STEAM mobile hydraulic system for excavators. STEAM represents the first holistic approach to optimise both the energy efficiency and performance of mobile machinery.
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[PDF] Simulation study of a digital hydraulic independent
Independent metering valve (IMV) control of working hydraulic systems in mobile machines has been studied for more than two decades and during the past few years it has also been adopted to commercial excavators. The main advantages of the IMV systems, compared to load sensing and open centre systems are the possibility of optimizing the pressure losses of the metering edges and the
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Hydraulic Hybrid Architecture for Excavators | SpringerLink
Up to12%cash back · May 25, 2016 · Within the scope of a publically fundend project, the IFAS at the RWTH Aachen University has spent the last three years developing a hydraulic hybrid architecture for excavators. The system has been implemented in an 18 t wheeled excavator and …
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