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  • (PDF) Comparative Energy Analysis of a Load Sensing System

    The distributions of the losses (Sankey diagrams) for the system components of the DDH system (with pipes and without pipes) and conventional LS system were determined for a 9-tonne excavator. It was shown that location of DDH (in particular, lengths of the pipes) affects the mechanical energy requirements by 65% of the studied excavator due to

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  • Energy Consumption of an LS Excavator Hydraulic …

    Analysis of a single-pump LS hydraulic system for a compact excavator showed that the energy dissipated in the control valves could account for between 40 to 45% of the total energy consumed by

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  • Modelling and energy comparison of system layouts for a

    Aug 01, 2018 · The mathematical model of the excavator has been developed using the LMS AMESim® software and is composed of hydraulic sub-models including the main pump, the LS flow sharing directional valve, a 2D kinematics model of the front excavation tool, turret and tracks, the engine model and the operator model.

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  • Multi-Point-of-View Energy Loss Analysis in a Refuse Truck

    the supplied energy and reuse of the recovered and regenerated energy (hybrid systems). Today's mobile hydraulic systems are often complex, perform different tasks and work under different load conditions, which makes it difficult to analyse energy losses. A study of the energy losses of a hydraulic system from different points of view, such

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  • ENERGY SAVING SYSTEM FOR HYDRAULIC EXCAVATOR

    The power assist system is a type of system to store and recover energy using an accumulator as if it were a storage battery. It is a system to store energy into an accumulator during equipment idling periods and utilize the stored energy during loaded periods for energy saving purpose. Fig. 1 shows the schematic diagram of the power assist system.

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  • Hydraulic Energy Recovery in Displacement Controlled

    legislation, more energy efficient hydraulic systems have been studied increasingly. Inderelst et al. [2] compared a conventional LS-system to five alternative system layouts introduced for excavator work hydraulics. Their simulations showed that most energy was saved in the system where the actuators were controlled by variable displacement pumps.

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  • Study on Rotary Characteristics about Light Type Hydraulic

    Energy Consumption of an LS Excavator Hydraulic System[C]. 2007 ASME International Mechanical Engineering Congress and Exposition. Seattle, Washington, USA, 2007, 11: 1-10. Joshua D. Zimmerman, Matteo Pelosi, Christopher A. Williamson. Energy Comsumption of. DOI: 10.1115/imece2007-42267

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  • Energy-Saving Analysis of Hydraulic Hybrid Excavator Based

    Energy-saving research of excavators is becoming one hot topic due to the increasing energy crisis and environmental deterioration recently. Hydraulic hybrid excavator based on common pressure rail (HHEC) provides an alternative with electric hybrid excavator because it has high power density and environment friendly and easy to modify based on the existing manufacture process.

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  • Research highlights | gfpsweb.org

    Efficiency Study of an Excavator Hydraulic System Based on Displacement-Controlled Actuators. ASME/Bath Workshop on Fluid Power and Motion Control (FPMC08), Bath, UK.-Zimmerman, J. and Ivantysynova, M. 2008. The Effect of System Pressure Level on the Energy Consumption of Displacement Controlled Actuator Systems.

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  • Improving Efficiency of Micro Excavator With Decentralized

    Simulation results demonstrate that the total efficiency of the excavator with LS control is 18.3%, and with DDH (decentralized hydraulics) is 71.3 % for a selected typical working cycle. Volume Subject Area: Symposium on Fluid Power and Motion Control. Topics: Hydraulics,Trenching machinery,Cycles,Energy consumption,Motors,Pumps,Servomotors,Stress,Actuators,Aerospace industry,Control …

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  • Improved Loss Modeling of Hydrostatic Units: Requirement

    May 22, 2009 · Using precise loss modeling methods enables prediction of energy consumption and energy losses over various duty cycles. Rising energy costs, enhanced government guidelines and increased environmental awareness require more efficient drive concepts especially in mobile working machines. Energy Consumption of an LS Excavator Hydraulic System

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  • Used KOMATSU WA380-3 Wheel Loader For Sale Original japan

    KOMATSU Used Wheel loaders for sale, Quality Used KOMATSU WA380-3 Wheel Loader For Sale Original japan on sale of Sino-Broad Machinery Trade Co.,Ltd from China.

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  • Excavator-specific Hydraulic System Solutions

    The system will reduce the flow in the same proportion to compensate for changes in flow demand. The post-valve compensation system is a trend for compact, efficient and complex mobile hydraulic systems and the actuators are optimally controlled regardless of inlet flow or number of actuators. Suitable for excavator ranging from 1.5T to 15T

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  • Scheme Based on Economic Analysis of Energy Consumption

    The Lithium-electric Excavator Hydraulic System (Li-EEHS) is based on economic analysis of energy consumption, and it has changed the excavator counterweight into Lithium-ion Battery in order to replace the engine. A computational analysis which takes the Qingdao heavy industry excavator HW130 as the example demonstrates the accessibility of the scheme.

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  • Effect of Installed Hydraulic Corner Power on the Energy

    Sep 16, 2010 · Zimmerman, J, & Ivantysynova, M. "Effect of Installed Hydraulic Corner Power on the Energy Consumption and Performance of Multi-Actuator Displacement Controlled Mobile Machines." Proceedings of the ASME 2009 Dynamic Systems and Control Conference. ASME 2009 Dynamic Systems and Control Conference, Volume 2. Hollywood, California, USA.

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  • A hydraulic hybrid excavator with Displacement-Controlled

    Efficiency Study of an Excavator Hydraulic System Based on Displacement-Controlled Actuators. ASME/Bath Workshop on Fluid Power and Motion Control (FPMC08), Bath, UK.-Zimmerman, J. and Ivantysynova, M. 2008. The Effect of System Pressure Level on the Energy Consumption of Displacement Controlled Actuator Systems.

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  • Energy Consumption and Efficiency Measurements of

    Jan 11, 2016 · A series of detailed measurements of various mechanical and hydraulic system states of different excavators was performed. Main purpose of this study was to obtain a reliable information basis for assessing the potentials of hybrid drives, in particular the amount of recoverable energy. Energy Consumption of an LS Excavator Hydraulic System.

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  • Simulation study of a digital hydraulic independent

    The purpose of this study is to apply a D-IMV system to a midsize (20t) excavator and to study the differences in energy consumption of the working hydraulic system with four actuators. This paper presents the controller designed for the D-IMV and a simulation model for analysing the system.

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  • Methodical Loss Reduction in Load Sensing Systems Based on

    Nov 03, 2016 · Such improvements can be realized by new system architectures, like hybrids or energy recovery systems, but also by optimizing existing systems. This publication discusses the reduction of systematic losses for an existing hydraulic Load Sensing System (LSS) used in mobile working machines, especially in compact excavators.

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  • Energy Consumption of an LS Excavator Hydraulic System

    May 22, 2009 · The energy consumption of the excavator hydraulic system has been studied for typical working cycles. For this purpose a coupled multi-body dynamics and hydraulic system model was developed in the Matlab Simulink environment, including a precise measurement-based loss model of the variable displacement pump. Power transmission and dissipation

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