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VDI Wissensforum GmbH - Commercial Vehicles 2023

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VDI Wissensforum GmbH (ed.)

Commercial Vehicles 2023

Series: VDI-Berichte

Volume 2417 2023

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F. Schweizer, T. Pflanz, M. Wagenblast, W. Tegethoff, J. Köhler, F. Breuer, L. Frerichs Fuel cell electric drive concept for heavy-duty commercial vehicles S. 123-140

„… cooling-critical conditions to make up for the traditional cooling system's diminished cooling capacity. To show …” „… hydrogen storage system (pressure level 700 bar) into a long-haul truck. In addition, the cooling system is …” „… and in-novative concepts for increasing cooling capacity are examined. The work packages of the …”

P. Ziegler Use Cases and technical challenges of the MCS charging S. 51-54

„… the cooling needs during driving multiple times. Several approaches e.g. indirect cooling, direct …” „… cooling and parallelization of the current are under detailed investigation. VDI-Berichte Nr. 2417, 2023 …”

M. Sommer, E. Sax, T. Rösch Fleet data used for self-learning functions in commercial vehicles S. 81-92

„… simulated heating and cooling scenario [8] Cooling Heating Metric Unit PID MPC Deviation PID MPC Deviation …”

J. Heseding, P. Meyer-Roesler, D. Rasch Virtual Type-IIa – Software product for homologation of commercial vehicle BEV without additional hardware S. 93-104

„… necessary installation space and cooling requirements of these devices conflict with the design hurdles of …” „… sink, so called brake-choppers or – resistors can be integrated into the vehicles cooling system …”

B. Lehner What is the UN-R 167 Direct Vision Standard S. 241-246

„… (engine, cooling, HVAC). The front view requirement in particular poses a problem for already existing …”

doi.org/10.51202/9783181024171

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

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

„… installation space it is possible to house the electric drive motor with internal rotor in one cooling unit …” „… . The fluid has lubricating as well as cooling functions. In addition to oil cooling, water cooling of …” „… / rotor / stator / cooling unit / sensors) VDI-Berichte Nr. 2328, 2018 453 3) Stator and rotor …”

R. Bredtmann, M. Beck, O. Mühlfeld, K. Olesen, O. Shajarati Robust multi-chip power module for effective integration to automotive powertrains – Danfoss DCM™1000 meets future automotive requirements

„… characterized by a metal cooling plate, ceramic-based circuit carrier, bondable frame and silicon soft-gel …” „… direct-cooled molded power module design offering minimum specific Rth. To achieve excellent cooling, a …” „… “ShowerPower® 3D”. This direct liquid cooling can dissipate more than 300 Watt / cm² (13-24). Furthermore, the …”

M. Werra, A. Ringleb, C. Sieg, F. Küçükay Thermal behavior of 48 V hybrid systems

„… winding is coiled. Around the stator, the casing with the cooling can be found. Fig. 3: Simplified …” „… and cooling to one thermal mass. In addition, the rotor and cage rods will be assumed to be one …” „… components, e.g. a chip, bonding wire, ceramic circuit carrier, cooling paste and cooling sink. In most cases …”

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 …” „… assemblies: electric drive motor, cooling unit, separating clutch between electric drive motor and combustion …” „… regulation of the electric drive motor regulates water cooling, which surrounds the stator with the lowest …”

T. Grasshoff, P. Beckedahl Power module packaging technologies for silicon and silicon carbide in automotive applications – challenges and solutions

„… and weight of power systems, the cooling technology and system must be optimized as it accounts for …” „… resistance between the chip and the cooling medium is one of the key measures to improve the performance of …” „… efficient cooling. Elimination of the thermal grease – which represents 30% of the thermal resistance in a …”

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

„… electrohydraulic actuators and a cooling oil pump regarding actuator power range, performance, consumption …” „… the typical cooling and lubrication requirements of the transmission. These three pumps provide the …” „… of both actuators. Since a minimum cooling oil pressure of around 1 bar has to be maintained for …”

B. Chamberlin, E. Gold HEV P2 module concepts for different transmission architectures clutch and e-motor options

„… clutch lube for rotor cooling. b. Triple clutch This design lends itself for DCT hybrid …” „… hybrid motor. Figure 9: P2 Electric Motor Architecture Comparison The cooling method of the …” „… system normally defines the cooling design and the optimal method for cooling will depend upon the …”

F. Leonardi, A. Munoz, L. Guo, F. Liang, M. Degner Electric machine design approaches for electrified powertrains

„… tuning: peak Von Mises stress in the center bridge Cooling channel optimization for mass reduction …” „… geometric dimensions of the cooling channel (defined as a spline in the same fashion as the magnet pocket …” „… different cases are studied, with one cooling channel on the Q axis like the original design, two cooling …”

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 …” „… components. For the heavily loaded clutch A an external cooling (additional oil flow) was integrated in …”

D. Bauer, M. Alexander Loss-optimized design of a high performance electrical machine for electric and hybrid cars

„… ~ 270 x 270 mm (incl. cooling and housing) - Excellent efficiency (> 97 %) - High power to weight …” „… ratio of approx. 10 kW/kg (incl. cooling and housing) - About 150 kW of continuous power using simple …” „… and robust water jacket cooling - Designed for high DC voltages allowing fast charging of battery …”

M. Behzad, V. Saxena, M. Schaefer Thermal-hydrodynamic optimization of grooves in a wet clutch

„… that the groove orientation has a significant effect on cooling efficiency of ATF and clutch plates …” „… input cooling flowrate, in PA groove configuration, the ATF volume and flowrate through the clutch are …” „… cooling efficiency of PA grooves. The experimental tests also verifies such thermal improvement while …”

S. Rinderknecht, A. Esser, P. Jardin Relevance of multidimensional real-driving optimization for the development of a battery-electric vehicle 5.0

„… as cooling, it is assumed that a heat pump with a performance number of 3 is used. In case of an …” „… an additional electric heating element. For this reason, it is assumed that only cooling situations …” „… heating and cooling situations have to be considered. Finally, the primary and auxiliary energy demand …”

C. Ahn Churning oil path optimization process development – Application of moving particle simulation method to design process

„… redesigned and plastic oil guide of special shape is added. In the end, cooling oil path has added and …”

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

„… heat flows to colder regions within the available volume. Cooling by lubricant can be neglected, as in …” „… , all the boundary surfaces of the clutch are modeled as adiabatic, no cooling is implemented, all of …”

R. Savelsberg, P. Griefnow, G. Birmes, A. Sehr Advanced powertrain functions of 48 V hybrid vehicles – Efficient powertrains does not exclude driving pleasure

„… heater Vacuum pump e-Clutch ABS/ESP Electrical power steering iBooster Engine cooling fan Windshield …” „… belt starter generator with a maximum efficiency of 88%. The power electronics have liquid cooling …”

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

„… , Nominal Voltage 48 V DC Supply, Peak Current <300 A Cooling, External Air Weight, without PE <42 kg …”

T. Smejkal, C. Wirth Innovative transmission topologies using the example of a P2-hybridtransmission for front-transverse applications

„… instead of a conventional torque converter. Around the stator of the e-machine, a cooling jacket, which …” „… is supplied with cooling fluid by external connections, is installed to maximize energy output of …”

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

„… element with low thermal stress only and does not require special cooling. In principle, oil is supplied …”

R. Heckmann Fully automated EOL E-drive testing – Automation and modularity for efficient testing solutions

„… clamping devices, cooling circuits, and oil supply. They are joined by flexible adaptations of power …”

P. Maurel, N. Termenon, Philippe Kraemer, I. Sogoba Efficient hybrid clutch actuator

„… the single dry clutch by a wet clutch due to the cost of adding a cooling system to manage uphill …”

H. Neurath, L. Frerichs Holistic method to find suitable drivetrain technology and architecture – How available information can be used to reduce development complexity

„… caused by harsh environmental conditions, active cooling systems, installation space and component …”

B. Arnold, B. Lecointre Shift simulator for shift feel and quality development of manual transmissions

„… of peak torque shifts two cooling fans were added to the housing. The force sensor is inclined by a …”

A. Viehmann, R. König, S. Rinderknecht Investigation of gear shifts in a parallel-series hybrid powertrain with dog clutches in a demonstrator vehicle (two-drive-transmission with range-extender, DE-REX)

„… strategy), transmission control, HV coordination and cooling control are running. Therefore, the input …” „… finishing the mechanical, electrical and cooling integration VDI-Berichte Nr. 2328, 2018328 Operation …”

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 …”

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 …”

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

„… electronics is able to run at higher cooling water temperatures and can withstand greater current exposure …”

doi.org/10.51202/9783181023280

VDI Wissensforum GmbH - PIAE EUROPE 2021

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VDI Wissensforum GmbH (ed.)

PIAE EUROPE 2021

Series: VDI-Berichte

Volume 2385 2021

Results in this title

L. Reifenstein, B. Nießen BAGS: Highly-integrated front-end module carrier S. 9-18

„… capability clearly required protection by raising the cooling-package position and the much higher position …” „… carrier was used, which was mounted in the body shop. The lower cooling package carrier structure was a …” „… welded assembly that was screwed to the body along with the cooling package. With the Focus 2013 the …”

R. Holschuh, T. Bayerl Shaping the future of electromobility with holistic plastic solutions S. 185-198

„… conductivity Electrolyte resistance Cell housing seal Swelling behavior, aging behavior Cooling media …” „… resistance Cooling tubes Swelling behavior, aging behavior Mechanical stress (crash) Battery housing …” „… connection with battery cooling. The thermal challenge as regards the battery is to keep today's lithium-ion …”

M. Hetterich, M. Michl Lightweight TPE for weight-reduced automotive applications – Be Smart – Make it lightweight S. 225-234

„… orientations in the component and cooling conditions during production, this also depends on the material used …” „… hand, the reduced thermal capacity of lightweight TPEs leads to faster cooling in the injection mold …” „… standard TPE for the same cooling time is over 20°C. This offers possibilities for reducing cooling time …”

T. Köppl, F. Dresel, N. Grohnmeier Breakthrough in producing soft and sustainable interior surfaces by injection moulding of TPE S. 49-60

„… alternating cooling and heating of the tool. Cycle times of 5 minutes or more per skin are not uncommon …”

doi.org/10.51202/9783181023853

VDI Wissensforum GmbH - 28. Deutscher Flammentag

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VDI Wissensforum GmbH (ed.)

28. Deutscher Flammentag

Series: VDI-Berichte

Volume 2302 2017

Results in this title

D. Nikolaenko, C. Spijker, H. Raupenstrauch Modelling the Jet Cooler for Hot-dip Galvanization of Steel Strips S. 741-746

„… jetsurface heat interaction between the fluid region (describing the cooling gas) and the solid region …” „… down by cooling gas from an array of round jets impinging on the upper and lower surfaces of the …” „… continuous strip of hot steel is fed horizontally supported by rolls through a cooling section. Cooling gas …”

A. Zietak, F. Özdogan, J. Janicka, F. di Mare Entwicklung eines LES/LES-Interfaces für die Simulation der Wandkühlung einer Brennkammer (Work-in-Prozess) S. 765-770

„… (Work-in-Progress) Development of a LES/LES-interface for combustor wall cooling A. Zietak, Dr.-Ing. F …” „… development of a reliable and accurate method to predict the behaviour of the wall cooling film and the wall …” „… flow on combustor liner heat transfer and cooling: a numerical investigation with hybrid …”

F. Zentgraf, M. Stephan, B. Albert, B. Böhm, A. Dreizler Anwendung von strukturierter Beleuchtung auf Gasphasen-Thermometrie mit Phosphorpartikeln S. 705-710

„… , T., Lengyel, T., Hassa, C. u. Gerendás, M.: Characterization of advanced combustor cooling concepts …” „… emanating from angled and trenched film cooling holes. Int J Heat Mass Tran 103 (2016) S. 390–400 [3] Lee …”

S. Eckart, S. Voss, H. Krause Charakterisierung von Verlöschungsgrenzen an nicht vorgemischten Gegenstromflammen mit Hilfe der Streckungsratenanalyse S. 649-660

„… are sucked into the bottom duct and cooled down to less than 70 °C with a water-cooling system. The …” „… of the burner. A water cooling system is also applied in the same section in order to quench the …”

S. Feldhoff, R.T.E. Hermanns Recent improvements of the Heat Flux setup to determine laminar burning velocities of liquid fuels S. 711-716

„… VDI-Berichte Nr. 2302, 2017 711 cooling jacket, which maintains the temperature of the plenum chamber at a …”

D. Lechtenberg Verbrennungsoptimierung durch feinst vermahlene, abfallstämmige Ersatzbrennstoffe S. 227-240

„… – European Cement Research Academy: Impact of Burning and Cooling Conditions on clinker quality. ECRA …”

N. Schmitz, C. Schwotzer, H. Pfeifer, J. Schneider, E. Cresci, J.G. Wünning Experimentelle und numerische Untersuchungen zur Auslegung eines energieeffizienten Brenners mit oxidationsträger Schutzgasatmosphäre S. 241-252

„… during the finishing, rolling, cooling and coiling of thin hot strips, final report, Luxemburg, 2004 [5 …”

doi.org/10.51202/9783181023020

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VDI Wissensforum GmbH (ed.)

Dritev 2022

Series: VDI-Berichte

Volume 2401 2022

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C. Ugare, A. Sibirko Plastics in high reliability Power Inverter Applications S. 209-222

„… Plastics in high reliability Power Inverter Applications Integrated circuit packaging, cooling …” „… coolant flow could result in inefficient cooling which leads to increase of temperature of the power …” „… in blue. Iso-lation is only needed at Pin Fin plug area for busbar cooling (AVL patented solution …”

A. J. Wimmer High-Speed Testing: The Fast Lane towards a Running System S. 365-380

„… speeds seem to have reached a stable level. New Requirements (2): Rotor Cooling Along with increasing …” „… . Therefore, more and more development departments think about or do already use the opportunity of cooling …” „… cooling of the UUT rotor through the high-speed shaft of the test rig drive, e. g. a high-speed gearbox …”

P. Alagarsamy, A. Zangaro Compact Reduced Order Model (ROM) based on Finite Element (FE) Models of Power Electronics in Electric and Hybrid Vehicles S. 95-108

„… a fitting. In simple cases with a single cooling condition this fitting is always easy, since only …” „… one state must be represented by the model. However, for variable flow rates and cooling conditions of …” „… parts. To avoid these inaccuracies due to variable cooling conditions, a compact reduced Order model …”

J. Gindele, U. Franzmann, L. Herdle, A. Pawlenka The Magna 7HDT400 for BMW’s new 48V hybrid drive family S. 1-12

„… additional or reinforced clutch and requires no additional fluid circuit for cooling and VDI-Berichte Nr …” „… electromechanically-actu-ated gear-shift system – were taken from the 7DCT300 without modification. The oil cooling of the EM …” „… uses the existing electric motor-driven on-demand oil pump for clutch cooling. An ad-ditional switching …”

J. Kniel, M. Göckler, B. Müller Holistic thermal management as a “must have” for efficient BEV S. 397-406

„… . For the E-Drive Unit a cooling concept must be chosen for the E-Motor. But there are several …” „… like providing heat to the cooling circuit in the vehicle, we can simulate to most important Use-Cases …” „… bottom-up view, you’re facing the following situation. The concrete cooling concept is implemented at the …”

M. Schröder, K. Herold, C. Monissen Efficiency Increase of Electric Machines with Active Thermal Field Weakening S. 119-132

„… freedom for innovative cooling concepts Dr.-Ing. Michael Schröder, Dr.-Ing. Konrad Herold, FEV Europe …” „… temperature and thus also the magnet temperature in a controlled manner, with reduced cooling power, will …” „… thermal management with an alternative cooling strategy may be suitable to regulate mag-netic excitation …”

D. Lindvai-Soos, S. Kaimer Electric Drives for All-wheel Functions – A System Comparison of ASM and PSM S. 109-118

„… this out, a significantly more complex cooling system is required than for the PSM. A comprehensive …” „… size and higher cooling requirements. It needs more case material like aluminum, a larger stator, and …” „… unfavorable thermal stability, the ASM needs an active fluid cooling system, that is to say, an oil pump, an …”

F. Schuchter, M. Schönstein, K. Bause, A. Albers Temperature Modelling of a Dual Clutch with Artificial Neural Networks S. 335-346

„… cooling and the switching strategy. Overheating of the clutch can also lead to coking of the lubricating …” „… temperature are the friction power and the cooling behavior. The frictional power is largely determined by the …” „… , 2022340 The temperature of the cooling oil ? and the fluid velocity contained in the Nusselt number …”

J. Merckling Use of Power-Dense Fuel-Efficient Tapered Roller Bearings in E-Drives under Low-Viscosity Oil and High-Speed Conditions S. 153-168

„… bearings. Thermal runaway/scoring: A lack of oil and cooling and/or excessive bearing heat gen-eration can …” „… generation: Excessive bearing heat generation can cause thermal runaway if theoil flow/cooling system is not …”

G. Göppert, M. Adrian AI Approach to Wet Friction Torque Model Adaptation S. 321-334

„… torque, speeds, cooling volume flow and input temperature. Instead of using the full history of all the …” „… model of the input variables input speed, output speed, cooling oil VDI-Berichte Nr. 2401, 2022 329flow …”

S. kyoung Lee, B. jae Lee, H. joon Kim Extreme cornering performance of Integrated Drive Axle on vehicle S. 291-302

„… for record measurement, and other laps were warm-up and cooling driving to prevent overload of the …”

Z. Liu, V. Stegmayer, S. Rinderknecht, U. Fechter Multiphase CFD investigation of splash lubrication S. 169-184

„… . Regarding the system cooling and lubrication, some gears are immerged in the oil sump, so that the oil can …”

doi.org/10.51202/9783181024010

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