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VDI-Wissensforum GmbH - DRITEV – Drivetrain for Vehicles 2021

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VDI-Wissensforum GmbH (ed.)

DRITEV – Drivetrain for Vehicles 2021

Series: VDI-Berichte

Volume 2381 2021

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R. R. Kasibhatla, P. Neidhardt, K. Caliskan Thermal Simulation according to Maturity Level in E-Drive Development S. 61-76

„… can be evaluated. To achieve continuous steady powers, the cooling system must transport the losses …” „… water-based cooling system, 50 % peak to continuous power ratio can be achieved. Fig. 1: Streamlines of …” „… essential for e-drives to meet performance and installation requirements. The coiling system effects not …”

F. Bayer, J. Tochtermann Development of a Heavy-Duty E-Axle S. 621-636

„… led to the specification of the e-axle as follows: Peak Power: 540 kW Continuous Power: 400 kW Max …” „… to be packaged. The components of the suspension system of a conventional truck are arranged close …” „… . Nevertheless, it is quite likely that some modifications of the suspension system are necessary to create the …”

D. Morgenweck, M. Großmann, W. Fakler, M. Lamke, F. Bitzer ZF E-Mobility Software Functions for Commercial Vehicles S. 703-718

„… power and the delivered power of the drive system. ZF-EMS distributes the available power to all high …” „… example the waste heat of the drive system to heat up the battery or the cabin. That holds especially …” „… , if the design of the cooling system enables to interchange heat between different circuits waste …”

C. Schörghuber, M. Ortner, J. Pell, S. Pretsch Holistic system design and operation of a fuel cell truck based on an innovative energy management S. 685-700

„… appropriate heat exchanger areas and fan power have to be considered. The target of the energy management is …” „… system depending on power and aging If the fuel cell system is dimensioned in order to achieve the …” „… available. The first one is to define an optimum power-split between fuel cell and battery system in order …”

C. Schmidt, H. Dhejne, J. Karlsson High Efficient 2 speed e-Axle – Highly efficient and shiftable under load S. 145-158

„… . 1: AVL 2speed e-Axle (© AVL) The targeted system efficiency in WLTC cycle was set to 2-5% higher …” „… actuation system based on a drum shift to ensure shift under load and easy controllability - Mechanical …” „… park lock as feature of the shift system (“Smart park lock”) to reduce cost and weight. No separate …”

M. Hein, J. Pellkofer, K. Michaelis, T. Tobie, K. Stahl, D. Kadach Test method A/16,6/90 with injection lubrication for discriminating different lubricants for dual-clutch transmissions S. 437-452

„… . Introduction and objective Due to increasing power density in gears as well as the trend of decreasing oil …” „… quantity and viscosity to reduce no-load power losses, the scuffing load-carrying capacity has to be …” „… . Consequently, the lubricant temperature increases during the 7,5 or 15 minutes test run due to the heat input …”

X. Zhang, F. Küçükay Driveability optimization of electrified powertrains utilizing machine learning based control and the interaction with ADAS/AD systems S. 361-376

„… ) so that the electric motor always has the electrical power available to provide continuous power …” „… here as well. When the power demand is high, the wheel is directly connected to the ICE via a clutch …” „… so that the vehicle can continue to maintain high continuous power. In this paper we will focus on …”

M. Muether, B. Heuser, L. Virnich, A. Guedden, T. Luediger, D. van der Put Development trends towards CO2-neutral powertrains for HD applications S. 529-550

„… as the exhaust gas aftertreatment system and possible additional technologies such as waste heat …” „… is necessary to analyze which propulsion system offers the greatest benefits. Due to their different …” „… liquefied hydrogen is used. This is due to the power requirements for pressurization. Hydrogen´s key …”

D. Lechleitner, M. Hofstetter, M. Hirz, C. Gsenger, K. Huber Parking Lock Integration for Electric Axle Drives by Multi-Objective Design Optimization S. 303-318

„… design phase to prevent failure of the system. That way, the designs of shafts, gear wheels and bearings …” „… system can thus lead to undesirably high costs and reduced energy efficiency of the entire e-drive – all …” „… favorable package integration of the e-drive system are typical concurrent design objectives. In order to …”

M. Häßler, O. Werner The Pendulum Rocker Damper – Providing flexible damper characteristics for hybrid powertrains S. 329-346

„… supercritical behaviour by means of a soft connection between the exciting system and the system, which has to …” „… the system has to be designed as low as possible. However, the need to cover the maximum torque …” „… due to a wide range of configurations and new types of operating points, which requires highly …”

doi.org/10.51202/9783181023815

VDI Wissensforum GmbH - Ventiltrieb und Zylinderkopf 2017

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VDI Wissensforum GmbH (ed.)

Ventiltrieb und Zylinderkopf 2017

Series: VDI-Berichte

Volume 2291 2017

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N. Auffret, M. Moretti, D. Palmisani Modular Valve Train Systems for Heavy-Duty engines S. 199-210

„… system on valve train - Possibility to integrate internal EGR to respect emissions standards in emerging …” „… dynamic behaviour, but has to be complete part of the brake system that would stop this vehicle while …” „… driving up to 75 km/h. Therefore, the need of off-road engines to generate high engine brake power is as …”

R. Janak, J. Baltrucki Next Generation of Valve Train Technology for Engine Braking and More S. 223-240

„… not rejecting any excessive heat to the engine cooling system, and will thus outperform the Driveline …” „… engine is fully shutdown, and there is no power applied to the system, the latches will still be locked …” „… decompressed until the fuel system is synchronized and ready to inject, or inlet air heaters have warmed the …”

doi.org/10.51202/9783181022917

VDI Wissensforum GmbH - SIMVEC – Simulation und Erprobung in der Fahrzeugentwicklung

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SIMVEC – Simulation und Erprobung in der Fahrzeugentwicklung

Series: VDI-Berichte

Volume 2333 2018

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J. Wimmer, P. Stopp Einbindung eines pradiktiven Elektro-Chemischen Batteriemodells in ein virtuelles E-Fahrzeug S. 399-414

„… transfer heat to a 1-Dimensional CFD model of a flow system containing a 50% mixture of water and ethylene …” „… system-level vehicle models to meet this fast-running requirement, a number of model simplifications are …” „… system-level model of the BEV, shown in Fig. 1, uses a multi-domain (electrical and mechanical) approach to …”

S. Luthardt, L. Fredriksson, V. Leconte, Patrick Lombard, A. Dyer E-Motor Design using Multi-Physics Optimization S. 359-380

„… physical modeling. The objective of the design optimization is to maximize torque and power under defined …” „… quality are fulfilled. Thus, it is necessity to develop the E-motor not in isolation but as a system to …” „… the E-motor design process. In addition to phase 1, heat transfer, structural strength and …”

doi.org/10.51202/9783181023334

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VDI Wissensforum GmbH (ed.)

ELIV 2019

Series: VDI-Berichte

Volume 2357 2019

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L. Schindele, D. Schütz, F. Heber, P. Sailer, G. Le Hen, N. Müller Future e-mobility and the change in system requirements – The interplay between battery and thermal management for different mobility concepts S. 87-100

„… . The second topology "+ Waste Heat Utilization" allows to utilize the cooling system’s waste heat for …” „… ), an appropriate waste heat recovery system is typically much more attractive to support cabin …” „… simulation tool chain, which allows to optimize an EV’s system topology for a specific vehicle usage. For …”

O. Bitsche 800V Fast Charging is Reality – From the Vision in 2015 to Reality in 2019 S. 529-536

„… time requirement leads to a higher charging power demand. In order to support a charging power above …” „… The need to build a high performance sports car with repeatable acceleration led to a power …” „… requirement of more than 600 hp (440kW). To solve the trade-off between cable cross-section, heat-loss and …”

T. Grasshoff, O. Tamm Efficiency Advantages of SiC in Electric Drive Train Applications S. 169-176

„… addition to the electrical power, the thermal power of the entire system plays a decisive role. The power …” „… challenges to meet the requirements for the power electronic conversion. Technically most demanding are …” „… design to protect against environmental impact by dust or liquids. To optimize system costs and customer …”

T. Bürger, Kunal Goray, F. Berg, W. Resende Modular DC-DC converter for high-performance fuel-cell systems in trucks and buses S. 189-200

„… levels of 70 to 120 kW depending on system and vehicle. These power levels are usually achieved with one …” „… fuel cell system. Commercial vehicles on the other hand require higher power levels (up to 350 kW for …” „… cell system knowhow and power electronics knowhow that was already existing inside AVL. In addition to …”

D. Robinson How to Improve Automotive Testing in an Agile Development Process – A Review of Popular Testing Methods and Overview of Advanced Automated User Interface Testing S. 519-528

„… must team up to manage processing power, availability of touch screens and user expectations …” „… Camera-Based Test Systems In a camera-based test system, a camera is used to monitor the GUI while software is …” „… methods, this type of test system is rather rudimentary as it is typically only able to provide simple …”

doi.org/10.51202/9783181023570

VDI Wissensforum GmbH - Commercial Vehicles 2019

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VDI Wissensforum GmbH (ed.)

Commercial Vehicles 2019

Series: VDI-Berichte

Volume 2350 2019

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D. Vorgerd The Mercedes-Benz eCitaro – A modular concept for sustainable electro mobility in city bus operations S. 9-18

„… fuel-driven auxiliary heater can be used at specific times in addition to the eCitaro’s HVAC system in order …” „… system with a heat pump. The heat pumps is a source for energy-efficient heating and cooling of the …” „… a high heat exchange, even at very low temperatures down to -10°C VDI-Berichte Nr. 2350, 201912 …”

M. Fritz Modular Platform Approach for Electric Drive System in Commercial Vehicles S. 103-114

„… signal interfaces to power and signal contacting as well as to the cooling system are always identical …” „… overall electric drive system. Fig. 5 shows exemplarily the potential to improve the efficiency of power …” „… the high degree of modularization of the power electronics enables solutions adapted to the available …”

A. Danninger, E. Armengaud, N. Knopper Implementation of Powertrain control for economic, low real driving emissions and fuel consumption – Measures for Fuel consumption reduction in Long Haul traffic S. 293-312

„… global powertrain optimisation with respect to power, propulsion, thermal system and pollutant emissions …” „… to avoid unnecessary wear. 4.2. Power Management Strategy The power management is formulated as a …” „… composition with respect to emission fulfilment is considered. A functional overview of the Power Management …”

G. Milton, H.-M. Koegeler, R. Varnhagen Validating the fuel consumption of trucks featuring a dynamic electronic horizon in real world traffic: methods and results S. 149-174

„… control Predictive hybrid system power and energy management Predictive Waste Heat Recovery control …” „… system. Current production commercial vehicles use electronic horizon systems to provide static …” „… values is used. For the second KPI, a ‘power demand of the traffic’ is calculated, analogous to the …”

doi.org/10.51202/9783181023501

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