Decentralized Hydraulics for Micro Excavator

Shuzhong Zhang, Tatiana Minav, Matti Pietola

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference contributionScientificvertaisarvioitu


Environmental restrictions and economic opportunities create demand to investigate the potential of further hybridization of non-road mobile machinery (NRMM). Many proposals for energy saving in hydraulic systems have been researched. In addition to well-established methods, there are zonal or decentralized hydraulics – an approach first introduced in the aircraft industry. In a fully decentralized system, the hydraulic pumps are disconnected from the engine and replaced with hydraulic power packs distributed throughout the system. In this study, decentralized hydraulics are realized with a direct driven hydraulics drive (DDH). By applying DDH, further hybridization can be achieved which will lead to increased productivity, minimized energy consumption, and robust performance in mobile machines operating in various environments. Therefore, the aim of this paper is to investigate the energy efficiency of the excavator hydraulic system equipped with DDH under typical digging cycles. For this purpose, a model which coupled multi-body dynamics, hydraulic system, and an electric motor is developed in the Matlab Simulink environment. Simulation results are validated by a simplified representation of micro excavator (one example of DDH) as a proof of concept.
OtsikkoProceedings of the 15th Scandinavian International conference on fluid power, SICFP'17
AlaotsikkoFluid Power in the Digital Age
ToimittajatPetter Krus, Liselott Ericson, Magnus Sethson
KustantajaLinköping University
ISBN (elektroninen)978-91-7685-369-6
TilaJulkaistu - 7 kesäkuuta 2017
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaScandinavian International Conference on Fluid Power - Lindköping, Ruotsi
Kesto: 7 kesäkuuta 20179 kesäkuuta 2017
Konferenssinumero: 15


NimiLinköping Electronic Conference Proceedings
KustantajaLinköping University
ISSN (painettu)1650-3686
ISSN (elektroninen)1650-3740


ConferenceScandinavian International Conference on Fluid Power

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  • Siteeraa tätä

    Zhang, S., Minav, T., & Pietola, M. (2017). Decentralized Hydraulics for Micro Excavator. teoksessa P. Krus, L. Ericson, & M. Sethson (Toimittajat), Proceedings of the 15th Scandinavian International conference on fluid power, SICFP'17: Fluid Power in the Digital Age (Sivut 187-195). (Linköping Electronic Conference Proceedings; Nro 144). Linköping University.