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The use of a holistic machine simulation for the development of hydraulic hybrid modules to reduce transient engine-out emissions

Brinkschulte, Lars; Pult, Felix; Geimer, Marcus

Abstract (englisch):
In contrast to constant operating states, particle and NOx emissions of internal combustion engines are significantly higher during transient operating states, which occur repeatedly at working cycles of mobile machines. This paper therefore deals with the conception, development and testing of hydraulic hybrid systems to reduce these emissions by phlegmatization of the engine. A wheel loader with its machine-typical working cycle serves as an example for the investigation of the benefits of such a system. Therefore, model based development techniques are used. In a holistic machine simulation, four different typical wheel loader cycles were carried out and the optimum size of the hydraulic accumulator for the hybrid system is identified by a parameter variation. The lowest emitted emissions and the smallest construction dimensions are the key elements for the accumulator selection. With an optimal hydraulic accumulator, a reduction in particle emissions of up to 29.4 % is achieved in one of the cycles investigated.

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Originalveröffentlichung
DOI: 10.25368/2020.57
Zugehörige Institution(en) am KIT Institut für Fahrzeugsystemtechnik (FAST)
Publikationstyp Proceedingsbeitrag
Publikationsdatum 25.06.2020
Sprache Englisch
Identifikator KITopen-ID: 1000120613
Erschienen in Symposium. Dresden : Technische Universität Dresden, 2020. Vol. 1
Veranstaltung 12th International Fluid Power Conference (IFK 2020), Dresden, Deutschland, 12.10.2020 – 14.10.2020
Verlag Technische Universität Dresden (TU Dresden)
Seiten 499-510
Externe Relationen Abstract/Volltext
Schlagwörter 12th International Fluid Power Conference, Model Based Development, Holistic Machine Simulation, Hydraulic Hybrid System, Transient Engine-Out Emissions, 12. IFK, Modellbasierte Entwicklung, ganzheitliche Maschinensimulation, hydraulisches Hybridsystem, vorübergehende Motorausgangsemissionen
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