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VDI Wissensforum GmbH - Dritev – Drivetrain for Vehicles 2020

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VDI Wissensforum GmbH (ed.)

Dritev – Drivetrain for Vehicles 2020

Series: VDI-Berichte

Volume 2373 2020

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V. Null A new generation of thermal fluid technology for high performance charging of electric vehicles – How new thermal fluids can enhance battery performance in EVs

„… probably be domestically focussed and be sufficient to meet the needs of most drivers. But this may be …” „… resulting weight is 14,4 kg for hydrofluoroether and 6,4 kg for Shell Thermal Fluid E5 TM. In direct …” „… types in lab testing. CFD modelling of indirect and direct cooling systems At fluid level …”

P. Lück, K. Bennewitz, J. Tousen, J. Peter The front-axle drive of the MEB – Volkswagen expands the e-drive portfolio

„… direct costs. Together with the attractive driving characteristics of the new all-wheel drive train …” „… electric drivetrains of the new modular e-drive kit (MEB) DRITEV – 19th International VDI-Congress, Bonn …” „… The front-axle drive of the MEB – Volkswagen expands the e-drive portfolio Dipl.-Ing. Peter …”

M. Deiml High speed electric drive system – A solution for the next generation E-cars

„… electric drivetrain is suggested in this article. Integrated electric-drive-units (EDUs) are already …” „… High Speed Electric Drive System A Solution for the Next Generation E-Cars Dipl. Ing. (FH …” „… . Government incentives and an increasing awareness for CO2 emissions may be additional volume drivers for …”

P. Schwanemann, T. Pfund Market-driven electric motor designs from Schaeffler – Optimized electric motor design process via technology and production kits

„… Market-driven electric motor designs from Schaeffler Optimized electric motor design process …” „… combine electric drive systems, transmissions, combustion engines and several energy sources like gasoline …” „… . Fig. 1: Installation position of the electric drive in vehicles [1] VDI-Berichte Nr. 2373, 20202 On a …”

C. A. Spangler Borg Warner’s P1 and P2 hybrid drive modules – Modular kit for P1 and P2 hybrids

„… the driveline, and the electric motor leverages the ratios of the gearbox to drive the wheels …” „… Borg Warner’s P1 and P2 Hybrid Drive Modules Modular Kit for P1 and P2 Hybrids Christopher A …” „… , and Integrated Hybrid Drive Modules Among the many hybrid architecture configurations, the P2 …”

K. Sabzewari, M. Vieracker, J. Sagstetter Cost efficient PHEV powertrain solution based on dedicated hybrid transmission – Cost efficiency for small and mid-size plug in hybrid vehicle

„… driveability requirements. Depending on the driver request, the available energy and the energy flow through …” „… different torque sources contribute to a drive-off scenario in urban traffic, like an acceleration from 0 …” „… drive-off, as well as the small raise of the measured torque in section 3, are a result of inaccuracy and …”

F. Völkel, M. Tietz, A. Schamin, S. Giehl Rolling into the future – Bearing solutions for electric mobility

„… Bearings used in electric drives have to fulfill specific requirements that cannot be compared to those of …” „… manufacturers already working on drives with even higher rotational speeds. As a result, both high-speed ball …” „… , which in turn improves the control and energy efficiency of the drive. However, these advantages are …”

D. Schöneberger, S. Rinderknecht, D. Reitmeier, A. Mertens Development of a transmission control for an innovative high-speed powertrain using motor-related control – Simulative approach to develop an angular position controlled engagement of dog clutches in ...

„… strong as in conventional transmissions. As recommended in [4] and confirmed in [5] linear direct drive …” „… (Two-Drive-Transmission with Range-Extender, DE-REX). 18th International VDI Congress, “Drivetrain for Vehicles 2018 …” „… two drive transmission Daniel Schöneberger, M.Sc., Prof. Dr.-Ing. Stephan Rinderknecht, Institute …”

A. Manelli, F. Filippo Irato, C. Cavallino, R. Gay e-FDU: Concept, develop & industrialization of a novel P4 powertrain – From concept to industrialization of a novel P4 powertrain in 24 month

„… novel p4 pure electric powertrain, in the form of a dual electric motor front axle. Each unit drives …” „… , allowing at the same time to have a full electric drive, improvement of traction capabilities and vehicle …” „… dynamics and a reduction of the fuel consumption. Electric drive of the vehicle can be completely achieved …”

G. Gardner Ford MACH-E Primary Electric Drive Unit

„… Ford MACH-E Primary Electric Drive Unit Greg Gardner, Ford Motor Company, Livonia Michigan, USA …” „… Abstract Full electrification of vehicles requires developing new electric drive units to transfer motor …” „… architecture to provide primary drive functions. Ford has worked with several supplier partners to develop an …”

A. Esser, T. Eichenlaub, S. Rinderknecht Real-driving-based comparison of the eco-impact of powertrain concepts using a data-driven optimization environment

„… Real-Driving-Based Comparison of the Eco-Impact of Powertrain Concepts using a Data-Driven …” „… contribution we present a data-driven optimization environment that enables to identify the ecological …” „… long-range capable vehicles. PHEV or ICEV, driven by the combustion of compressed natural gas (CNG), and …”

M. Saborío, O. Sarmiento, C. Böhm High efficiency electric transmission oil pump – Transmission hydraulic efficiency improvement through hybridization

„… the flexibility of an EOP i.e. Dual Drive Pumps (DDP). Such hybridized and pure electrical supply …” „… ; or by merging both into one hybrid system as is the case of Vitesco Technologies’ Dual Drive Pump …” „… dimensioned based on hydraulic needs, and not only on the combustion engine speed. Dual Drive Pump The …”

D. Vietze, M. Hein, K. Stahl Method for a cloud based remaining-service-life-prediction for vehicle-gearboxes based on big-data-analysis and machine learning

„… and kinds of machinery. 2. Motivation Transmissions are a key component of vehicle drive trains …” „… agricultural machinery would not work the usual way without gearboxes in their drive trains. Over the last …” „… . Nevertheless, failures occur and can lead to a total loss of drive. With increasing lifetime and millage this …”

T. Korb, M. Nussbaumer, S. Rinderknecht Generic optimization environment and knowledge-based guided evolutionary algorithms for automated transmission calibration – Method to generate a knowledge base through impact analysis of parameters a...

„… driver that typically adjusts functional parameters of the control unit software and evaluates the …” „… or set requirements, which are often subjective to the test driver’s experience. In addition the use …” „… , done by application engineers or test drivers within the conventional process. The rating system, or …”

doi.org/10.51202/9783181023730

VDI Wissensform GmbH - Drivetrain Solutions for Commercial Vehicles

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VDI Wissensform GmbH (ed.)

Drivetrain Solutions for Commercial Vehicles

Series: VDI-Berichte

Volume 2421 2023

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G. Wiche Voith Central Drive Concept for HD Trucks S. 181-190

„… trucks and special purpose ve-hicles. Compared to conventional drivetrains, the Voith Electrical Drive …” „… Voith Central Drive Concept for HD Trucks Dr. Gregor Wiche, J.M. Voith SE & Co. KG (VTA …” „… Portfolio anbieten zu können. Das VEDS HD+ (Voith Electrical Drive System für Heavy- Duty Trucks) ist mit …”

A. Arnberger, H. Wancura, M. Wieser, H. Zhou, W. Gruber, J. Pell, C. Schörghuber Hybrid powertrain with hydrogen-engine – Technical solutions for future commercial vehicle powertrains S. 79-92

„… considered. The complete powertrain can be operated, via a direct drive (in 12th gear), with highest …” „… and then back to mechanical energy) and for long-haul applications also a highly efficient direct …” „… drive for highway operation will be needed. Thus, the challenge is to define a hybrid transmission …”

A. Rozum, R. Uerlich, G. Witham, L. Eckstein Modular powertrains for heavy-duty electric vehicles – From concept to prototype S. 191-0

„… project of Concept ELV2 (funded by BMWi), a novel electrically driven axle (e-axle) is developed together …” „… from significantly lower noise emissions of electric drives as the propulsion noise of conventional …” „… prototype is built and thus to minimise the total development costs. 2. Development of electric drives at …”

B. Wunderlich Development of an heavy duty eAxle for worldwide application within Daimler Truck portfolio S. 175-180

„… ! Verweisquelle konnte nicht gefunden werden.) Examples for frame mounted concepts are direct drives or De-Dion …” „… . The target was to develop a compact, powerful and efficient drive, carrying over as many existing …” „… carrier represents the compact electric drive unit, including 2 eMachines, an automated 2-speed gearbox …”

T. Jonsson, S. Balaji, G. Sivaraman, V. Ravindran, J. Engström Effects of PWM on losses and comparison of calculation approaches S. 47-58

„… drives have gained a lot of focus in recent times, especially due to their impact in increasing the iron …” „… voltage drives harmonic currents and associated fluxes in the electric machine, leading to higher losses …” „… straightforward since conventional finite element simulation uses sinusoidal current-driven approach for fast …”

H. Heimes, A. Kampker, M. Kehrer, S. Hagedorn, P. Euchner Packaging concepts for fuel cell commercial vehicles – From practical to application-oriented designs S. 13-28

„… mounted at the rear of the vehicle and connected to the wheels by a chain drive, Fig. 1. [1] Fig. 1: The …” „… are placed in the former engine space. The gearing and two electric drives are integrated in the …” „… units. The battery is placed in the middle of the drive train, between the fuel tanks. [7] VDI-Berichte …”

C. Braykoff CAM – Common Axle Module – The TRATON Common Axle Module for conventional and electric powertrain S. 67-74

„… the direction of long ratios. The aim is to generate further efficiency advantages for the drive train …” „… by reducing the engine speed. Compared to the existing axle drives in the group, the new design not …” „… every customer application. The new axle drive generation should be lighter and more efficient as the …”

doi.org/10.51202/9783181024218

VDI Wissensforum GmbH - Drivetrain for Vehicles 2016

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VDI Wissensforum GmbH (ed.)

Drivetrain for Vehicles 2016

Series: VDI-Berichte

Volume 2276 2016

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S. Heller, S. Heppel The new BMW hybrid powertrain with eight speed hybrid module S. 353-368

„… Plug-in charging socket. Fig. 1: BMW 330e iPerformance drivetrain The most eDrive components are …” „… transmission is designed as an integrated start-up element so that the creep and drive-off operation can be …” „… Kernmarke BMW wurde aktuell in den Fahrzeugen BMW 530Le, BMW X5 xDrive 40e und BMW 330e eingeführt und …”

W. Hinz, G. Bednarek The new 8-speed FWD Automatic Transmission for General Motors / A. Opel AG S. 383-396

„… front-wheel-drive vehicles as well. The first application front-wheel-drive 8-speed automatic transmission (AF50-8 …” „… general industry trend vehicle performance and drive comfort are playing an increasing role in the …” „… efficiency, drive comfort, shift comfort, sportiness and vehicle performance. Shift by wire or Active Fuel …”

M. Funk, G. Bofinger, J. Patzer, D. O. Lautenschlager, E. Granderath The New Porsche Dual Clutch Gearbox (PDK) – an Important Component of the Powertrain of the Future S. 69-84

„… eight proved to be the optimal number of gears. Assuming that first gear is for optimal drive-off …” „… conventional drive systems – it must also consider hybridisation as an integral part of the gearbox concept …” „… direct-shifting matrix Gear shifting performance Increased torque Ability to withstand high revs …”

M. Jordan, P. Tenberge Optimized Start-Stop-Control of a P2-Hybrid – Identification of critical parameters for comfort and timing S. 421-434

„… hydraulic pressure of the disconnect clutch is controlled by a direct acting proportional pressure control …” „… valve and its model. Fig. 6: Direct acting control valve and corresponding Simscape model 2.6 …” „… acceleration of the vehicle depends on the tyre model. A direct transformation from wheel torque to …”

S. Foulard, S. Rinderknecht, R. Fietzek Paradigm Change in Transmission Design by Online Condition Prediction – Cost- Efficient and Resource-Optimized Lightweight Design based on the eLIFE and ecoLIFE3 Concepts S. 515-530

„… transmission engineering, the 99.9 %-driver is usually taken as a reference to design the components, which …” „… covers theoretically 99.9 % of the driver profiles. Simulations and a few field tests mainly determine …” „… represent the behaviour of the end users, and often overestimate it. As a direct result, the transmissions …”

R. Kronstorfer, F. Kolb, U. Pinschmidt Audi quattro – Four wheel drive becomes more efficient S. 369-382

„… . Determination of Driver-Type Adjustments are made depending on usage of the throttle pedal, steering angle …” „… Audi quattro Four wheel drive becomes more efficient Rolf Kronstorfer, Florian Kolb, Udo …” „… . Abstract The all-wheel drive quattro has a very long and successful history at Audi. With more than seven …”

A. Kooy, D. Eireiner, T. Krause, C. Herbers, B. Vögtle Torsional Damping Systems for all relevant Powertrains – Extending current Damping Technologies S. 257-270

„… driving the driver will lose direct contact with the powertrain, requiring an even higher degree of …” „… Antriebsstränge angepasst werden. Abstract Effective damper systems are needed in order to drive at high …” „… on standard architectures and can be adopted to investigate actual drive trains and engines for …”

B. Löffler, J. Patzner, M. Drabek, K. Armbruster Modular 8-Speed Hybrid Dual Clutch Transmission With Integrated All-Wheel Distributor by ZF S. 85-100

„… standard and all-wheel drive applications. Thus, ZF presents a trendsetting system with sporty genes …” „… it as well as an integrated all-wheel drive option. VDI-Berichte 2276, 2016 85 2. The Transmission …” „… transmission ratio is adapted to these engine variants by different final-drive ratios. The transfer case …”

R. Nasdal, U. Bernhardt Cascaded gears: Possible Applications and Experiences S. 101-108

„… transversal mounted transmissions also in combination with a final drive ratio at the differential gear …” „… shifting questions the relevance for DCTs. The driver feels nothing but has only the acoustic effect of a …” „… untrained test drivers about negative drivability or shiftability in this context. It is likely that his …”

F. Brezger, A. Moser Energy Saving Potentials by Advanced Functionalities of Clutch or Brake actuator Systems for Vehicle Drivetrains S. 137-156

„… erleichtern. Abstract Current developments of passenger vehicles are generating a wide range of drive train …” „… 2276, 2016 137 performance and comfort but also gaining energy efficiency. Therefore different drives …” „… and corresponding drive train technologies are realized. Most vehicles are containing shiftable …”

A. Lampe, U. Mettin, R. Serway Clutch control of stepped automatic transmissions by using a virtual DCT-structure – Power shifts made easy with generic control software S. 405-420

„… coupled planetary gear sets and clutches. Because both types have more than one clutch, the drivers force …” „… clutch must be closed. The clutch state table in Fig. 2 shows that direct shifts other than consecutive …” „… in section 2 all shifts are performed as power shift so that the driver’s force demand must not be …”

B. Kohn, M. Otto, K. Stahl Noise Reduction Potential of Waveform Flank Modifications – Topological Waveform and Waveform-like Modifications Provide Promising Optimization Perspective S. 451-468

„… drive/slave gearbox, which are coupled with slender shafts of little torsional stiffness for elastic …” „… measurements are then retrieved and processed with the aim of a direct comparison to the target modification …” „… another chosen target load at the same time. The approach of a direct compensation of the TE implies very …”

R. Welter, M. Kneißler, M. Hausner, D. Schulteis The Fascination of Clutch-by-Wire S. 121-136

„… emission reduction through sailing as well as perceivable and useful functions for the driver deliver …” „… situations where no additional drive torque is required. In addition, there has been continuous improvement …” „… technology in combination with highly integrated driver modules allow high dynamic behavior and long life …”

J. Utz, V. Lichtenwald, G. Hirt Short Synchro (STSS) – reduced shift travel for MT’s and DCT’s – Development of a synchronizer system for future demands in transmissions S. 231-242

„… drive train and the large number of gears. A sporty gearshift feel with short shifting travel and …” „… a reduction in CO2 emissions. 1. Introduction There has been big changes in the drive train …” „… . VDI-Berichte 2276, 2016232 Fig. 1: Requirements for synchronization The high complexity of drive systems …”

V. Warth, B. Reick, B. Bertsche, M. Geimer Efficient analysis of complex continuously variable power split transmissions with multiple in- and outputs S. 719-730

„… erarbeiteten Methodik für unterschiedliche Anwendungsgebiete. Abstract Modern tractors have drives with …” „… vehicle drive or electrical power sockets. Quick and simple calculation of power and speed of new …” „… performance, comfort and efficiency of vehicle drive systems can be ideally matched to the driver's needs and …”

M. Hochrein, F. Mühlfeld, J. Buhl CBW system by ZF – maximum efficiency with maximum acceptance – Maximum efficiency with maximum acceptance S. 109-120

„… increasing functions/ features should be implemented in a way the driver still feels very familiar with …” „… regulations have been defined. Surely a significant increase in electrical driven cars is mandatory to reach …” „… (MT) the total volume of MT will increase. This trend for MT´s is mainly driven by the important …”

O. Eriguchi SUBARU CVT toward 2020 S. 3-16

„… (upgrade all vehicles to direct fuel injection) Achieve high level balance of three integrated elements: SGP, BOXER power unit, and …” „… Autonomous Drive with Comfort Artificial Step Shift Directness & Linearity for Enjoyment CVT has BOTH C yan M …”

S. Fujimoto, N. Shiomura, K. Sato, Y. Kawahara The Trend and Future of Torque Converter for CVT S. 869-878

„… Combustion Engine (ICE), the application of supercharger, diesel engine, direct injection and cylinder …” „… CVT/ Comparisons of TC for AT and CVT (1) Appropriate use of RWD Rear wheel drive longitudinal system …” „… and FWD Front wheel drive transverse system RWD tends to be expensive and have influence on cabin …”

M. Spreckels, U. Christoffer Efficient synchronizer for comfort and performance – increase of manual and dual clutch transmissions S. 207-220

„… 1928 simplified the complex process of a gear change and increased the comfort for the driver …” „… major impact on functionality and the quality of the shift felt by the driver. Good shift quality …” „… approx. 10%. Fig. 7: Torque capacity and efficiency of a segmented synchronizer in direct comparison …”

C. Ott, S. Eisenhuth, F. Jonas, T. Hofmann New Generation of Hydraulic Control Modules with Integrated Pressure Sensors for Transmission Control S. 243-256

„… direct integration of the pressure capturing unit into the hydraulic module, another one would be the …” „… direct integration of several sensors into the TCU. These arrangements offer different advantages: - In …” „… sensor into a µHM. In both cases a direct integration leads to additional requirements for the sensor …”

doi.org/10.51202/9783181022764

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VDI Wissensforum GmbH (ed.)

Dritev 2023

Series: VDI-Berichte

Volume 2420 2023

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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

„… parallel operation with direct mechanical drive by the internal combustion engine (hence "MultiMode Hybrid …” „… , allowing direct mechanical drive by the internal combustion engine. The electric motors can be used as an …” „… combustion engine operating and producing the required energy, and direct mechanical drive by the internal …”

B. Cebulski, S. Mühlbauer, D. Sailer, L. Schmieden, R. Wunderlich, O. Seidler, A. Stiegelmeyr About the benefits of permanent rotor temperature measurement S. 143-152

„… measurement Same power, loss costs The first benefit of direct measurement of the rotor magnet temperature is …” „… error in direct oil-cooled machines is caused by the unsteady oil flow, which is influenced by oil …” „… sensor modules This sensor technology has the following benefits:  Direct measurement & monitoring …”

J. Bonifacio, V. Warth, S. Scharr Optimizing sustainable high-performance e-drives S. 349-358

„… drivetrain could be reduced by 20 % compared to current series drives.The coaxial gearbox approach described …” „… oil bunker laterally to the drive.Fig. 9. ZFs torque-to-weight benchmark solutionVDI-Berichte Nr. 2420 …” „… greener products. The two key aspects for reducing CO2 emissions in the use phase of electric drives for …”

L. Roslaniec, T. Hackl Next generation Electric Drive Units with multi-level GaN inverter for highest HV EV performance and efficiency – Comparison of 2-level and 3-level inverter topologies S. 107-114

„… technology is key VisIC Technologies' D3GaN technology (Direct Drive D-Mode) was developed for the …” „… Next generation Electric Drive Units with multi-level GaN inverter for highest HV EV performance …” „… multi-level inverters in electrical drive applications, particularly for the automotive industry. Multi-level …”

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

„… : https://drivetrain-symposium.world/development-of-a-multi-speed-two-drive-powertrain/ [22] M. Wietschel, C. Moll, S. Oberle, B. Lux, S. Timmerberg, and N. Ashley-Belbin, “Klimabi-lanz …” „… Development and Design of a Range Extended four-speed Two-Drive-Powertrain Aaron Kappes, M.Sc …” „… . Abstract An electric Two-Drive-Powertrain is presented that is intended to enable highly efficient …”

M. Magnusson, O. Nicklasson, H. Jacobsson Electric Cross Differential, eXD S. 235-252

„… of an EV such as: Study of eXD influence on vehicle behaviour for cornering drive situations …” „… splined hollow shaft, connected to the o.d. of the clutch. The i.d. of the clutch is connected to a drive …” „… “artificial” resistance torque directly between differential housing and the drive shaft on the low grip side …”

C. Mohr Acoustic Optimization of Electric Powertrains from a Vehicle Level Perspective S. 471-0

„… possible, [2]:  direct mechanical drive by the internal combustion engine  driven by electric/traction …” „… drivesIntelligent all-wheel driveThermal management of e-machinesSustainability and life cycle analysis in …” „… developmentVehicle development with computational fluid dynamicsEfficiency of electric drivesElectrified city of …”

A. Paone, J. Larbig, A. Rohm, T. Höche ZF TherMaS: Holistic Thermal Management for BEV S. 45-60

„… Höche, ZF Friedrichshafen AG, Schweinfurt Abstract Efficiency of drive systems of battery electric …” „… the drive system at lower costs and outstanding sustainability. Dedicated to be modular, compact …” „… driven vehicles the necessary cooling power is much lower compared to combustion engine cars …”

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

„… is currently in a far-reaching transformation process. Driven by planned bans on vehicles with …” „… in a far-reaching transformation process. Driven by planned bans on vehicles with internal combustion …” „… the speed adjustment can be done by the electric motor. Fig. 1 shows the package benefit of a direct …”

J. Jung, A. Helm Manufacturing technologies for reduced AC copper losses in hairpin stators – Increasing the efficiency of electric traction machines S. 131-142

„… efficiency of electric traction machines Dr. Jakob Jung, Axel Helm, Additive Drives GmbH, Dresden …” „… main drive of automobiles contain windings made of solid copper conductors, so-called hairpins. Due to …” „… , 2023 131 Hairpin stator in the main drive of electric vehicles Fig. 1 shows the typical structure of an …”

P. Geradts, M. Kasten, A. Landvogt Psychoacoustic optimization of the NVH behavior of an eDrive power train – Application of a Targeted Micro Geometry Scatter on Helical Gears to break-up the regularity of the transmission error excita... S. 459-470

„… Psychoacoustic optimization of the NVH behavior of an eDrive power train Application of a Targeted …” „… Drehfehlerrechnungen in Messungen auf einem Teststand für ein eDrive-System untersucht. VDI-Berichte Nr. 2420, 2023 459 …” „… in purely electrically driven vehicles with the elimination of the masking benefits of the internal …”

R. Fehrenbacher, P. Duck, K. Bause Ways to increase sustainability by expanding product development processes for vehicles using the example of a hybridized automated transmission S. 411-424

„… represent a new product's direct intermediate stage (development generation). Further development of the PGE …” „… with several variants, e.g., to enable individualizations such as different drive types in different …” „… the conventional drive power in the hybrid powertrain. The battery system provides the electrical …”

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

„… modern drive systems, replacing reactive or preventive maintenance with condition-based maintenance. For …” „… Research Association for Drive Technology e.V. (FVA)/Research Association for Combustion Engines e.V. (FVV …” „… G-P (2012) Hot bands and hot spots: Some direct solutions of continuous thermoelastic systems with …”

T. Hofman, J. Van Kampen, O. Borsboom Electric Mobility Design – From Powertrain Components to Vehicle Fleet Optimization S. 391-410

„… together with the same drive towards our mutual goal of accelerating the energy and mobility transition …” „… , e-drive, and gearbox system), we focus at a lower-coupled system level on understanding how to develop …” „… distance driven. In our research [13], we first define the fleet operational problem in terms of vehicle …”

doi.org/10.51202/9783181024201

VDI Wissensforum GmbH - International Conference on Gears 2019

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2019

Series: VDI-Berichte

Volume 2355 2019

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A. L. Kapelevich, Y. V. Shekhtman Optimization of asymmetric tooth root generated with protuberance hob S. 403-414

„… ** Optimized Root Tensile Stress, MPa 391 351 396 356 Tensile Stress Reduction - 10.2% - 10.1% * Drive/Coast …” „… , Dr. Yurity V. Shekhtman, AKGears, LLC, Shoreview, Minnesota, USA Introduction The Direct …” „… required gear drive performance. One such critical element of the tooth profile is the root fillet …”

J. Ahn, C. H. Choi, J. H. Yu, S. C. Kim A study of dynamic behavior of tractor pto driveline to analyze a rattle noise S. 461-470

„… direct-engine PTO driveline, and it makes collisions between the driving and driven gears. This gear collision …” „… makes gear rattle noise. Fig. 1 : Dirct-engine PTO drive Figure 1 shows the direct-engine PTO …” „… direct-engine PTO drivelines. However, most tractors have used diesel engines to obtain high power output and …”

Z. H. Wu, Y. Q. Xu, K. A. Liu The Analysis on Grease Lubrication at Two Tapered Bodies Contact Considering Surface Roughness S. 1223-1236

„… Driven/driving body parameters Value Length of driven body le /mm 42.16 Length of driving body l /mm 52.33 …” „… driving body is rotating about its axis and driving the driven body to revolve about its own axis and …” „… shorter driven body, the o-y axis is along contact center line, and the o-z axis is perpendicular to the …”

T. Fukuda, M. Nakagawa, T. Hirogaki, E. Aoyama Investigation of transient response motion of differential planetary gear train during reverse rotation and starting by using high-speed camera monitoring S. 331-342

„… train, named 2K-HV PGT, having a clear acrylic carrier, was developed to enable direct observation of …” „… conventional 2K-H PGT. Direct observations of the novel PGT were recorded using a high-speed camera. The …” „… to enable direct observation of the planet gear motion, which is otherwise impossible using a …”

B. Schlecht, T. Schulze Improved tooth contact analysis by using virtual gear twins – How helpful is AI for finding best gear design? S. 203-216

„… , DriveConcepts GmbH, Dresden VDI-Berichte Nr. 2355, 2019 203 consequent use of the digital twin on the example of …” „… problems of tooth contact. DriveConcepts GmbH, 2019 [6] MDESIGN gearbox 2020, design and calculation …” „… software for multi-stage gearboxes. DriveConcepts GmbH, 2019 [7] MDESIGN LVR 2020, software for load …”

P. Lopez Garcia, S. Crispel, T. Verstraten, E. Saerens, B. Vanderborght, D. Lefeber Wolfrom gearboxes for lightweight, human-centered robotics S. 753-764

„… also designed direct-drive motors with higher torques, to reduce the required gearbox ratios [29 …” „… teeth and the invention of reliable indexing machines enabled the replacement of belt-driven mechanisms …” „… by more marginally used planetary gear trains [10]. Cycloidal Drives are extremely robust against …”

X. Yang, N. Yue, Q. Yang, L. Wang, Y. Shao, H. Xiong Dynamic simulation for double input compound power-split mechanism of in-wheel motor driven EVs S. 481-492

„… , Chongqing, China Abstract In-wheel motor (IWM) can achieve the wheel direct drive which is the direction …” „… 491 References [1] Le S., Jinyi L., Junfeng W., et al.: Research Status of Direct Drive Technology …” „… analysis of planetary gears train of semi-direct drive wind turbine. 2015 IEEE ICIA. IEEE, 2015 [10 …”

S. Detzel, Y. S. Krieger, M. F. Traeger, T. C. Lueth Design of gear surface models for 3D-printing of plastic gears S. 1401-1410

„… models. A toolbox for Matlab was therefore created, implementing the gear design with direct interface …” „… SG-library presented in [9], which allows the direct generation of surface models for additive manufacturing …” „… optimally used in the fabrication of these gear types to produce application-specific drives. These can …”

S. Vonderschmidt, A. Ott, A. Vonderschmidt High speed driven tool for machine tools using magnetic transmission technology S. 1145-1154

„… High Speed Driven Tool for Machine Tools using Magnetic Transmission Technology Dr. Stefan …” „… , Horb am Neckar Abstract This paper describes the development of a high speed driven tool for …” „… spindle often reaches its limits for applications as e.g. grinding. Therefore driven tools are used to …”

D. Marino, H. Binz, M. Bachmann Analytical design method for beveloid gears with a small shaft angle and offset S. 391-402

„… centered contact pattern with a predefined gear backlash without iterations. In addition to the direct …” „… all-wheel drives, for example, where they connect the gearbox output to the front differential with a small …” „… direct calculation of the main gearing data for arbitrary axis arrangements considering a centered …”

K. Stahl Foreword S. 1-2

„… enhanced gearless electric drives. On the other side, digitalization offers many opportunities for …” „… restricts their direct application to machine elements. Here, focused research is required to set the bar …”

M. Lutz, J. Hermes Use of multiple-body simulation during the development process of gear units S. 1077-1086

„… rigidity of the drive. Fig. 1 shows the example of a two-speed gearbox with direct motor mounting …” „… used in system simulation, to a tool also used in drive technology during the product development …” „… up scope for completely new potential usage of the simulation models in the area of drive selection …”

C. Boehme, D. Vill, P. Tenberge Extension of the application limits for crossed helical gearboxes by new geometries for smaller sliding paths or smaller contact pressures S. 1299-1310

„… actuators and auxiliary drives in large quantities in automotive applications such as window regulators …” „… . This has a direct positive effect on the Hertzian pressure, since the force to be transmitted is …” „… still 5% lower. Lower Hertzian pressures are accompanied by a direct increase in the tooth flank …”

A. Kubo Influence of stressed volume of tooth flank on the surface durability S. 15-24

„… and gear investigation. The direct application of SN-curve data and its concept to the surface …” „… endurance test with using IAE rig. The figure shows both mating driving and driven tooth flanks with …” „… the tested tooth flanks is as follows, Fig. 4: State of tooth flanks of driving and driven gear …”

K. Daubach, Manuel Oehler, Bernd Sauer A method to determine local wear of worm gears with highly resolved circumferential backlash curves S. 595-606

„… widely used in transmission applications, since they allow gear drives with a compact design, high gear …” „… unit is driven under constant conditions for input speed n1 and output torque T2 for a specified time …” „… shows a schematic diagram of the worm gear test rig. The tested worm gear (5) is driven at the worm …”

F. Siglmuller, U. Weinberger, J. Gotz, M. Sedlmair, T. Lohner, K. Stahl Scaling of planetary gear stages according to gear loss similarity S. 115-126

„… advantage is the direct measurement of the provided power losses to the back-to-back configuration on the …” „… rig applies the following operational limits: Maximum drive speed of the motor: 8000 rpm …” „… gearboxes is gaining focus in the development of modern drivetrains, the ability to test and verify the …”

M. Chapron, Q. Theurillat-Bonjour Tooth contact analysis of non-circular gears with non-involute tooth profiles: Application to horological spur gears S. 925-936

„… profiles along with non-circular gear drives for the generation of several functions. Mundo et al …” „… angular position. (b) Knowing the time-dependent speed ratio, the driven member is firstly set to an …” „… between the polygons. (c) Iteratively, the angular position of the driven gear is adjusted until the …”

B. Brodmann, H. Bodschwinna Scattered light measurement on worm gears with high efficiency requirements S. 1567-1578

„… of the gearing surfaces of worms in worm gears, a direct relationship between the surface finish and …” „… reduced pollutant limits for vehicle fleets require new approaches in drive technology. Electric-powered …” „… intensities. By (5) is thus given a direct relation to the frequency distribution of the mirror facets. For …”

A. Mihailidis, A. Psarros FEM analysis of the load distribution over the face width of helical gear pairs considering deviations, misalignments and deformations S. 193-202

„… “direct morphing” is applied without morphing boxes. This can be performed either by specifying “frozen …” „… “direct morphing” is used and specific boundaries are defined, regarding Fig. 5: Contact normal forces …” „… , Determination of the ISO face load factor in spur gear drives by the finite element modeling of gears and shafts …”

U. Kissling, U. Stolz, A. Turich Combining gear design with manufacturing process decisions S. 1533-1544

„… latest-generation machines with direct drives in all relevant axes, integrated stock division, simulation software …” „… layout process. 1. Introduction The layout of gear drives is a challenging process. Lifetime, noise …”

J. Cathelin Material data for advanced plastic gear simulation S. 1335-1344

„… main drivers for their success are their low manufacturing cost, related to mass production technique …” „… wear and are not fatigue driven (Fig. 4.c). a. b. c. Fig. 4: (a.) Mechanically …” „… gear wear characterization technic out of the three proposed is the direct gear wear measurement …”

M. R. Mauntz, J. Peuser Deep online oil analysis of dielectric parameters for life time enhancement of industrial gearboxes – Identification of critical operation conditions for reduction of failure rates S. 245-256

„… extremely low corresponding property of original pure oils. A direct connection between the electrical …” „… other CMS data a forming damage at the fast drive shaft was identified early enough to prevent the wind …”

M. Fromberger, S. Sendlbeck, M. Rothemund, J. Gotz, M. Otto, K. Stahl Comparing data sources for condition monitoring suitability S. 257-268

„… driven gear – given, that deflection and deviations are disregarded. Generally, real involute gear …” „… be done on the fly for each measurement. When using high-accuracy absolute angle encoders, a direct …”

A. Carbonelli Transferring knowledge about gear systems to machines in order to improve diagnosis efficiency S. 1065-1076

„… task, i.e. it must be done compared to a baseline. The information coming from the direct study of the …” „… data-driven approach and algorithms. The Journal of Engineering, 2015(7), 215-222. [3] Wang, D., Tsui, K. L …”

K. S. Ivanov, E. K. Yaroslavtseva Creation of gear self-controlled variator S. 1135-1144

„… dashpot characteristic. The dashpot makes direct impact on the closed contour which transfers motion to …” „… . Design and experiences of a planetary gear box for adaptive drives. Transactions of EUCOMES 2018 …”

M. Zapf, J. Klose, F. Zanger, V. Schulze Analysis of process forces and surface topography when manufacturing case-hardened gears by double flanked hard skiving S. 1647-1658

„… innovations in machine tools that allow handling the dynamic process forces. The advances in direct drives …”

R. Slatter Condition monitoring of gearboxes using magnetoresistive sensors S. 229-244

„… ) and the direct in-situ measurement of component damage during operation (as opposed to offline …” „… current near to the „point of pain“, that is, in direct proximity to service-relevant components and …” „… avoiding additional signal processing electronics as well. 3.3 Direct bearing and gear measurement The …”

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