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VDI Wissensforum GmbH - Dritev – Drivetrain For Vehicles 2018

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VDI Wissensforum GmbH (ed.)

Dritev – Drivetrain For Vehicles 2018

Series: VDI-Berichte

Volume 2328 2018

Results in this title

T. Nishikawa, Tomoo Kubo The development of a low friction and low viscosity final drive oil

„… different lubrication conditions which are Hydrodynamic lubrication, Elasto-hydrodynamic lubrication, Mixed …” „… lubrication and Boundary lubrication. F/D gear oil is used under all these lubrication conditions, therefore …” „… , we tried to reduce friction by Churning loss reduction (Lower viscosity) in Hydrodynamic lubrication …”

D. Güth, J. Haupt, T. Gassmann Seamless-shift two-speed eAxle with torque vectoring

„… level of efficiency, an actively controlled dry sump lubrication VDI-Berichte Nr. 2328, 2018 257 should …” „… bleed valve (Variable Bleed Solenoid/VBS) and a number of orifices a controlled active lubrication of …” „… conceivable for a series application. The lubrication routing itself is integrated in the gearbox housing and …”

G. Bednarek, K. Geratz, H. Chariou The all-new 8-speed AT for the Opel Grandland X

„… line pressure control and a flexible lubrication flow volume control contribute to a fuel consumption …” „… pressure control and flexible lubrication flow volume control. Figure 4: Clutch apply for G-Series AF50-8 …” „… % to the loss torque reduction, while the variable lubrication flow control adds another 6% from …”

C. Sibla, A. Donges, F. Jauch Third Generation of ZF’s 8-speed automatic transmission – Reducing CO2 emissions in the 8HP transmission

„… large diameter in particular contribute to this effect. Not only that, the lubrication situation plays a …” „… showed that a pressure-feed lubrication method could be implemented. In situations Dog clutch …” „… , the transmission lubrication is kept to a necessary minimum. The lubricant level increases accordingly …”

J. van der Meer, G. Hangen, J. Uhlig The new plug-in hybrid module as an addition to the AUDI S tronic gearbox family – Design, layout and manufacture

„… supply and basic lubrication volumes are optimised to meet the necessary demands. In this way, assurance …” „… ends and bearing lubrication are catered for. VDI-Berichte Nr. 2328, 2018460 7) Thermal management …” „… , the oil is also responsible for coil end cooling and bearing lubrication. Fig. 10: Oil distribution in …”

M. Roßhuber, G. Schromm, K. Kranz The new BMW automatic transmission – Challenges in development

„… , the actuation system and the oil supply (cooling / lubrication / actuation). If all or a large part …” „… lubrication, cooling and pressure-supply (oil demand) are further optimized to achieve efficiency …” „… lubrication required, so that the friction losses due to splashing or oil displacement were reduced. Likewise …”

A. Schmidt, H.-P. Fleischmann Enhancement of a dual clutch transmission kit – AUDI S tronic – Version for All-Wheel Drive, Increase of Torque and HV Electrification

„… provided for in the base S tronic concept, which supply the actuators and lubrication/cooling systems of …” „… cooling and lubrication of the dual clutch in terms of cost and functionality. In order to be able to …”

R. Stehr, A. Götz, M. Ciesek, S. Köpfler, M. Finsterbusch, R. Willeke Future Schaeffler CVT concepts with an innovative actuation system

„… the typical cooling and lubrication requirements of the transmission. These three pumps provide the …” „… lubrication issues. All in all, the simulation of the concept presented here shows a consumption potential of …”

M. Hofstetter, D. Lechleitner, M. Hirz, M. Gintzel, A. Schmidhofer Multi-objective gearbox design optimization for xEV-axle drives under consideration of package restrictions

„… characteristics, e.g. lubrication, deformation of the housing, acoustic behavior (NVH), rotor stability and park …” „… specific detailed design characteristics, e.g. lubrication, deformation of the housing, NVH, rotor …”

T. Högnäs, G. Beldie 48 volt torque vectoring electric rear drive module (eRDM) – Excellent driving dynamics with significant CO2 savings

„… with drag optimized clutches and lubrication management, the losses, also with the system inactive …”

A. Dietrich, H. Klampfl “Friction Stir Welding” – Lightweight through manufacturing technology – The path from a concept to revolutionary gearbox manufacturing

„… , supports the input torque and the reaction forces of the gears, and manages the lubrication flow. Today …”

G. van Spijk, A. Klaassen, A. van der Leest, A. Brandsma, M. Tweehuysen CVT: dedicated to hybrid solutions – Setting the benchmark on all KPI’s

„… pressure. For lubrication and cooling a second, low pressure ELOP is used, which enables switching off the …”

K. Bennewitz, A. Mann Powertrain electrification exemplified by the VW Golf

„… realized via dry-sump lubrication (lifetime fill). Hereby, the oil is fed directly to the lubrication …”

M. Kneißler, R. Welter, M. Baumann Entry hybridization of manual transmission drivetrains – A review of P0/P1 structures with an automated clutch

„… converter in a wide range [2, 3]. In parallel, advanced control units, cooling strategies and lubrication …”

M. Mileti, H. Pflaum, K. Stahl TorqueLINE cone clutch: Thermo-mechanical stability of cone clutches for ATs

„… Lubricants and Lubrication", Springer Berlin Heidelberg (2014). VDI-Berichte Nr. 2328, 2018368 …”

M. Bahne, U. Frey, G. Schlager Transmission technology contribution to CO2 roadmap – a benchmark

„… are primarily to be found in friction of gear wheels and bearings, and in lubrication. Depending on …”

doi.org/10.51202/9783181023280

VDI Wissensforum GmbH - Gleit- und Wälzlagerungen 2017

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VDI Wissensforum GmbH (ed.)

Gleit- und Wälzlagerungen 2017

Series: VDI-Berichte

Volume 2308 2017

Results in this title

F. König, G. Jacobs, G. Burghardt Einlaufverhalten von Gleitlagern im Start-Stopp-Betrieb S. 53-62

„… condition, e.g. where the bearing reaches unfavourable lubrication regimes. Plain bearing designs In …” „… the planet gear and the planet shaft. This bearing creates two lubrication films, one between the …” „… lubrication film, resulting into a speed range between planet speed and 0 rpm. Table 2: Concept overview …”

J. Beck Aktive Anpassung des Schmierstoffbedarfes gesteuert durch das Wälzlager im Betrieb S. 373-376

„… „SKF Active Lubrication“ – aktive Anpassung des Schmierstoffbedarfes gesteuert durch das …” „… Wälzlager im Betrieb Jens Beck SKF GmbH Gunnar-Wester-Str. 12, 97421 Schweinfurt SKF Active Lubrication …” „… Lubrication ist ein anwendungsspezifisch konstruiertes System, das sowohl in Sachen Planung als auch …”

R. Thies, D. Bartel Einfluss von Wasser auf die Ermüdungslebensdauer von Wälzlagern S. 39-52

„… Fatigue under Water-Infiltrated Lubrication. ASTM 1419, 2002 [10] Möller, U. J.; Bohr, U.: Schmierstoffe …” „… and Oxygen during Rolling Contact Lubrication. Wear 12 (1968), S. 331-342 [12] Schatzberg, P …” „… Rolling-Contact lubrication. Journal of lubrication technology 91, 1969 [13] Tchemtchoua, B.: Wassereinfluss bei …”

S. Arai Contribution of Frictional Behavior Control in Ball Screw S. 161-172

„… condition, material, and lubrication state. These influences are considered to affect the torque …” „… and lubrication states between balls and grooves have to be stabilized continuously. Fig. 2 …” „… amplitude and adequately controlling the contact and lubrication states between ball and grooves, which …”

M. Ooms, K. Krieckemans, M. Goovaerts Plain bearings for wind turbine gearboxes – An update on experience S. 63-72

„… Bearings under Severe Hydrody-namic Lubrication. In: Tribology International, 41, 461–472, Elsevier …” „… Roughness on Partial Hydrodynamic Lubrication, Transaction of the ASME, Vol. 100 1978, 12-17 [15] Bartel …”

S. Zorn, K. Brökel Modell für die Berücksichtigung partieller Mischreibung in hydrodynamisch wirkenden Radialgleitlagern – Grundlage für die numerische Lösung im System SIRIUS S. 125-134

„… ] O. Reynolds, “On the Theory of Lubrication and Its Application to Mr. Beauchamp Tower’s Experiments …” „… elastohydro-dynamic lubrication,” Wear, Vol. 19, Nr.. 1, pp. 91–108, 1972. [6] R. Wegmann, “Erweiterung der …”

D. Vaes, P. Tesini, K. Stadler Evaluation of roller slip losses in wind turbine gearbox high speed shaft bearings S. 283-298

„… load from gear set, position of lubrication and drain holes, …). For confidentiality reasons, no …” „… computed for all mixed lubrication regimes. On the other hand, SKF BEAST does not provide a built-in model …” „… A.W.: Ertel-Grubin methods in elastohydrodynamic lubrication – a review. Proc. ImechE Vol. 222 Part J …”

B. Vierneusel Schnelles Berechnungsverfahren zur Vermeidung oberflächeninduzierter Schäden in Wälzlagern S. 19-30

„… Lagerlösungen. Abstract In an ideally designed rolling bearing, a sufficiently thick lubrication film …” „… ] CASTRO, G., SEABRA, J.: Global and local analysis of gear scuffing tests using a mixed film lubrication …”

T. Kiekbusch, J. Liebrecht, B. Sauer Dynamiksimulation von Wälzlagern unter Berücksichtigung der Plansch- und Schleppverluste S. 207-218

„… . To predict the bearing’s behaviour with oil bath lubrication, the consideration of drag and churning …” „… Minimum Amount of Lubrication. 18th International Colloquium Tribology (TAE), Ostfildern, 2012. [15] Aul …”

S. Pörsch, B. Sauer, B. C. Jim Methodik zur Analyse der Schmierstofftransfervorgänge in feststoffgeschmierten Wälzlagern S. 341-346

„… Nano Sulfide Solid Lubrication. Berlin, Heidelberg : Springer, 2012. ISBN: 978-3-642-23101-8 [2 …”

T. Kiekbusch, B. Magyar, B. Sauer Multi-Ebenen-Simulation zur Berechnung der lokalen Lebensdauer in hochbelasteten Wälzkontakten S. 103-112

„… ] with regard to material fatigue. Among other things different loads, lubrication conditions or …”

E. Abele, F. Unterderweide, L. Holland Experimentelle Untersuchungen zur stabilen und instabilen Käfigbewegung eines Schrägkugellagers S. 173-184

„… American Society of Lubrication Engineers (1982), Volume 38 [6] Gupta, P.K.; Dill, J.F.; Bandow, H.E …”

J. Loos, W. Kruhöffer, D. Merk, J. Kerstiens, M. Smolenski Berechnungsansätze für die WEC-Neigung unter reibenergetischer Wälzbeanspruchung S. 231-244

„… – formation in large-size bearings with full fluid film lubrication, Bearing World conference Hannover 2016 …”

doi.org/10.51202/9783181023082

VDI Wissensforum GmbH - Kupplungen und Kupplungssysteme in Antrieben 2021

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VDI Wissensforum GmbH (ed.)

Kupplungen und Kupplungssysteme in Antrieben 2021

Series: VDI-Berichte

Volume 2382 2021

Results in this title

V. Föge, S. Blaschke New semi-dry friction solution for highly integrated active torque-controlled drives S. 103-114

„… 650 for lubrication deficiency and MF 745 for low viscosity oils Miba could show that it is possible …” „… integrated active torque-controlled drives 2.1 What is lubrication deficiency? Constantly rising …” „… friction materials that are highly compatible with lubrication deficiency. However, this is quite a vague …”

K. Völkel, H. Pflaum, K. Stahl Einlaufverhalten nasslaufender Lamellenkupplungen im Schlupfbetrieb S. 59-72

„… . Lorentz B, Albers A (2013) A numerical model for mixed lubrication taking into account surface topography …”

D. Groetsch, K. Voelkel, H. Pflaum, K. Stahl Echtzeit-Temperaturberechnung und Temperaturprädiktion nasslaufender Lamellenkupplungen S. 115-128

„… friction plate used in marine gearbox,” Ind Lubrication and Tribology 70(2):241–249, 2018, doi:10.1108/ILT …”

R. Leister, J. Kriegseis, B. Frohnapfel, D. Gatti, A. F. Najafi Analytical modeling and dimensionless characteristics of open wet clutches in consideration of gravity S. 129-144

„… generated between these two radii. The lubrication Reynolds number is ideally suited to describe the …”

doi.org/10.51202/9783181023822

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VDI Wissensforum GmbH (ed.)

Dritev 2023

Series: VDI-Berichte

Volume 2420 2023

Results in this title

Y. Jin Smart eDrive – Autonomous cooling eDrive for small BEVs and P4 AWD S. 21-36

„… problem. The usual way to “boost” the efficiency by adding the solutions like SiC or active lubrication …” „… cost from the water circuit will be used to realise the oil cooled motor and the active lubrication …” „… the active lubrication will bring further benefits that will be detailed in the next paragraphs …”

H. Sandquist, E. Barrientos, S. Klacar Systemized Modular Approach for Electric Drive Unit Family Development S. 89-106

„… coaxial layshaft design, the EDU family includes common torque transfer-, cooling and lubrication …” „… internal components such as torque transfer and cooling and lubrication systems are common for all variants …” „… ., cooling, battery, lubrication etc. The calculated limitations and criteria are later used to create the …”

D. Schweigert, B. Morhard, F. Oberneder, L. Pointner-Gabriel, M. Otto, K. Stahl Speed4E: Simulative and Experimental Results on the Vibration Behavior of a High-Speed Planetary Gearbox S. 441-458

„… power electronics and the electric motors and for lubrication of the gearbox in one circuit. Besides …” „… flanks and rolling bearings mounted in the new condition. Oil is supplied by injection lubrication with a …” „… .; Sedlmair, M.; Lohner, T.; Stahl, K. Efficient lubrication of a high-speed electromechanical powertrain with …”

J. Merckling Comparison of Efficiency of Tapered Roller Bearings and Deep Groove Ball Bearings in Electric Vehicle Intermediate Shaft Applications S. 339-348

„… CAverage Torque (Ncm)ePDFE Average TorqueComparison Across Temperatures and RunsRun 1 Run 2 Run 3VDI-Berichte Nr. 2420, 2023 345lubrication film thickness. At higher temperatures …”

R. Plavullathil, M. Rihn, C. Bridier Marelli’s eAxle family strategy – Agile answer to a moving EV market S. 281-294

„… at the customer's request: parking system, cooling or forced lubrication with an electric pump, or …”

C. Reumüller, M. Sedlmair, M. Hein, A. Damm Transformation from conventional to electric powertrains Challenges in testing mechatronic shifting systems S. 359-376

„… MCU (=Motor Control Unit) in this case. Lubrication and temperature control of the shift element is …”

L. Bayoux, K.-L. Kimmig, D. Reitz Has the potential in terms of weight, installation space, and function already been exhausted for hybrid transmissions? S. 205-220

„… responsible for cooling and lubrication as well as for operating the clutch and the parking lock. Since a …”

T. Schneider, K. Völkel, K. Stahl Failure Characteristics of Wet-Clutches in Limited Slip Differentials S. 307-324

„… Transformation of Surface (TTS). In: Lubrication at the Frontier - The Role of the Interface and Surface Layers …”

A. Kappes, S. Frei, P. Noone, Stephan Rinderknecht Development and Design of a Range Extended four-speed Two-Drive-Powertrain S. 253-280

„… used in DE4LoRa for injection lubrication, an oil-water heat exchanger was added to the transmission to …”

doi.org/10.51202/9783181024201

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wt Werkstattstechnik online

Browse Volumes: wt Werkstattstechnik online

wt Volume 112 (2022) Issue 06 ISSN Online: 1436-4980

Results in this title

Christian Kuhn, Julian Hermann, Dominik Lucke Smarte Schmierstellenüberwachung für Maschinen/Smart lubrication monitoring for machines S. 395-398

„… lubrication monitoring for machinesRegularly lubricating machines prevents damage, reduces downtime and avoids …” „… repair costs. However, lubrication pro-cesses are often insufficiently documented. For this reason, a …” „… smart maintenance solution is developed for monitoring of manual lubrication processes on machines. In …”

Roman Funke, Andreas Schubert, Torsten Schmidt, Jan Edelmann Mikrostrukturierung von Bohrungsmantelflächen/Microstructuring of bore shell surfaces S. 430-435

„… distribution and load capacity of textured rolling bearings. Industrial Lubrication and Tribology 72 (2020) 7 …” „… surface texturing by electrical discharge machining (EDM) under different lubrication regimes. Lubrication …”

doi.org/10.37544/1436-4980-2022-06

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