Direct driven hydraulic drive for new powertrain topologies for non-road mobile machinery

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Minav, Tatiana Heikkinen, Jani Pietola, Matti 2017-11-21T13:37:16Z 2017-11-21T13:37:16Z 2017
dc.identifier.citation Minav , T , Heikkinen , J & Pietola , M 2017 , ' Direct driven hydraulic drive for new powertrain topologies for non-road mobile machinery ' ELECTRIC POWER SYSTEMS RESEARCH , vol 152 , pp. 390-400 . DOI: 10.1016/j.epsr.2017.08.003 en
dc.identifier.issn 0378-7796
dc.identifier.other PURE UUID: 8a15e600-99d3-4b6f-8da8-35f5c6870ed3
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE FILEURL:
dc.description.abstract Tightening of emission rules and a desire to improve energy efficiency pushes even further the need for hybridization of non-road mobile machinery (NRMM). Consequently, this paper illustrates potential of the application of directly driven hydraulic drive (DDH) for NRMM from an energy efficiency point of view. The control of the DDH system was implemented directly with a servomotor driving a pump without conventional hydraulic control valves. Angular speed of the servomotor, in-coming oil flow from the pump, and out-going flow to the hydraulic motor determined the velocity of the double-acting cylinder piston. An earlier study by the authors presented that the hydro-mechanical losses were dominant in the original DDH setup. Resulting theoretical investigation indicated that the best scenario efficiency for DDH was estimated to be 76.7%. Therefore, this paper provides a detailed analysis based on Sankey diagrams of various powertrain topologies with DDH. This study of powertrains illustrated that DDH has the highest impact with 174% efficiency improvement with an electric NRMM powered by batteries instead of a conventional topology. en
dc.format.extent 390-400
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries ELECTRIC POWER SYSTEMS RESEARCH en
dc.relation.ispartofseries Volume 152 en
dc.rights openAccess en
dc.subject.other 214 Mechanical engineering en
dc.title Direct driven hydraulic drive for new powertrain topologies for non-road mobile machinery en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Engineering Design
dc.contributor.department Department of Mechanical Engineering
dc.subject.keyword Direct driven hydraulics
dc.subject.keyword hydraulics
dc.subject.keyword servomotor
dc.subject.keyword non-road mobile machinery
dc.subject.keyword Variable speed drive control
dc.subject.keyword Topology
dc.subject.keyword energy efficiency
dc.subject.keyword drive
dc.subject.keyword 214 Mechanical engineering
dc.identifier.urn URN:NBN:fi:aalto-201711217641
dc.identifier.doi 10.1016/j.epsr.2017.08.003
dc.type.version publishedVersion

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