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ATZheavy duty worldwide
Published in: ATZheavy duty worldwide 1/2017

01-03-2017 | Cover Story

Power-split Drives with Mechanical Variators

Authors: Christian Pelger, sM. Sc., Univ.-Prof. Dr.-Ing. Georg Jacobs, Prof. Dr.-Ing. Heinz-Dieter Schneider, Achim Feldermann, M. Sc.

Published in: ATZheavy duty worldwide | Issue 1/2017

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Excerpt

Infinite variable transmissions with hydrostatic variators are the dominant drive technology in the agricultural machinery sector. Compared to hydrostatic variators, mechanical CVTs have significant advantages in terms of noise level and system efficiency, but are seldomly used because of their limited torque capacity and limited ratio range. In order to compensate these specific disadvantages of mechanical CVTs, they can be used in power-split drives with one or more driving modes. To determine the application limits of these drives, an automated optimisation tool for power-split gearboxes, developed by the Institute for Machine Elements and Machine Design is used. Subsequently, a prototypical concept based on the mechanical cone-ring variator of the GIF-Entwicklungsgesellschaft for a small-tractor application is presented. …
previous article Efficient Transmissions
next article “Power-split transmissions have found their way into wheel loaders”

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Literature
[1]
Renius, K. T.; Knechtges, H. J.: Traktoren 2007 bis 2009 — Trends und neuere Entwicklungen. In: ATZoffhighway (2009), October, pp. 6–19
[2]
[3]
Casella, A.; Albertin, G.: Powertrain efficiency optimization of Full Toroidal Variator based IVT agricultural transmissions. Tagung Landtechnik, 2009
[4]
Wolf, A.: Die Grundgesetze der Umlaufgetriebe. Band 14, Schriftenreihe Antriebstechnik, Vieweg, 1958
[5]
Förster, H. J.: Stufenlose Fahrzeuggetriebe in mechanischer, hydrostatischer, hydrodynamischer, elektrischer Bauart und in Leistungsverzweigung: Grundlagen, Bauformen, Wechselwirkung. Fahrzeugtechnische Schriftenreihe, TÜV Rheinland, Köln, 1996
[6]
Ramm, M.: Systematische Entwicklung und Analyse stufenlos verstellbarer Getriebe mit innerer Leistungsverzweigung für mobile Arbeitsmaschinen. Aachen, RWTH, dissertation, 2014
[7]
Pelger, C. et al.: Automatisierte Synthese leistungsverzweigender Antriebe. Antriebstechnisches Kolloquium, Aachen, 2017
[8]
Schneider, H. D.; Gößlinghoff, J.: Das Kegel-Ring-Getriebe (KRG) — ein innovatives Automatikgetriebe für den Einsatz in kleineren Fahrzeugen. Antriebstechnisches Kolloquium, Aachen, 2015
Metadata
Title
Power-split Drives with Mechanical Variators
Authors
Christian Pelger, sM. Sc.
Univ.-Prof. Dr.-Ing. Georg Jacobs
Prof. Dr.-Ing. Heinz-Dieter Schneider
Achim Feldermann, M. Sc.
Publication date
01-03-2017
Publisher
Springer Fachmedien Wiesbaden
Published in
ATZheavy duty worldwide / Issue 1/2017
Electronic ISSN: 2524-8774
DOI
https://doi.org/10.1007/s41321-017-0005-8

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