Efficiency study of an electro-hydraulic excavator

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Conference article in proceedings
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Date
2018
Major/Subject
Mcode
Degree programme
Language
en
Pages
14
Series
Fluid power networks : proceedings : 19th - 21th March 2018 : International Fluid Power Conference, Volume 2
Abstract
A Matlab/Simulation model is utilized to study the total energy consumption and power distribution of the micro excavator. The model consists of the hydraulic and mechanical systems related to actuation of front hoe, i.e. boom, arm, and bucket. The excavator is equipped with pressure and position sensors, from which the measurement data is collected for parameterization and verification of the simulation model. Two different duty cycles, named digging and loading cycle and leveling cycle, based on the JCMAS standard, are utilized in this study. The results indicate a formidable room for improvement, concerning the hydraulic system, since a power loss of as much as 60% is localized in the directional valve group.
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Keywords
Excavator, efficiency, hydraulics, losses
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Citation
Salomaa , V , Minav , T , Mattila , J & Pietola , M 2018 , Efficiency study of an electro-hydraulic excavator . in H Murrenhoff (ed.) , Fluid power networks : proceedings : 19th - 21th March 2018 : International Fluid Power Conference . vol. 2 , RWTH Aachen University , International Fluid Power Conference , Aachen , Germany , 19/03/2018 . https://doi.org/10.18154/RWTH-2018-224646