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VDI Wissensforum GmbH - ELIV-MarketPlace 2022

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VDI Wissensforum GmbH (ed.)

ELIV-MarketPlace 2022

Series: VDI-Berichte

Volume 2405 2022

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Manuel Gärtner, Nadia Lecci New STi2GaNTM technology for ultra-fast switching automotive applications S. 121-132

„… loop stray inductancecauses higher voltage spikes and limits switching speedLower switching lossesLower …” „… , Italy Abstract Key Words: LiDAR, DCDC Converter, OBC, 48V, GaN, Efficiency, Automotive, Wide-Bandgap …” „… ultra-fast LiDAR Driver and smart 48V/12V DCDC converter. 2. LiDAR Driver This patented approach to firing …”

A. Berger An Advanced High-Efficiency Inverter with High Switching Frequencies to Improve Powertrain Efficiency and Performance S. 85-98

„… losses of a converter vs. switching frequency under full-load condition [4] A new method of materially …” „… adverse effect on converter losses, which simplifies motor design and increases motor lifetime by reducing …” „… , 10kWPROOFOF CONCEPT10Materially eliminates switching lossesEnables higher switching frequencies …”

M. Raimann New GaN based DC-DC converter concept for future fuel cell and charging applications S. 331-338

„… DC-DC Converter SystemTotal System Losses12Boundary conditions• Full current operating point• GaN DC/DC …” „… AGConclusionGaN transistors are an excellent choice for HV-HV DC-DC converters• Lower switching losses compared to …” „… New GaN based DC-DC converter concept for future fuel cell and charging applications Manuel …”

doi.org/10.51202/9783181024058

Manuel Oberneder - Modellbildung, Dimensionierung und modellbasierte Regelung des Modularen Mehrpunktstromrichters zur systemoptimalen Betriebsführung von Drehstrommaschinen

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Manuel Oberneder

Modellbildung, Dimensionierung und modellbasierte Regelung des Modularen Mehrpunktstromrichters zur systemoptimalen Betriebsführung von Drehstrommaschinen

Series: Elektrotechnik

Volume 424 2022

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Literaturverzeichnis S. 174-186

„… : Feedforward Loss Controlof Three-Level Active NPC Converters. In: IEEE Transactions on IndustryApplications …” „… Semiconductor Loss Comparison ofLow-Voltage, High-Power Two-Level and Three-Level Voltage Source Conver-ters. In …” „… Selection of the Average Capacitor Voltage for Variable-Speed Drives WithModular Multilevel Converters. In …”

Verfahren zur Systemauslegung S. 102-155

„… klassischeSCIG wird dabei mit einem Vollumrichter auf der Maschinen- (FL-MSC, Full LoadMachine Side Converter …” „… ) und Netzseite (FL-LSC, engl. Full Load Line Side Conver-ter) betrieben. Ein Konzept mit einem …” „… Teilumrichter auf der Maschinen- (PL-MSC,engl. Part Load Machine Side Converter) und Netzseite (PL-LSC, engl …”

doi.org/10.51202/9783186424211

VDI Wissensforum GmbH - Dritev – Drivetrain For Vehicles 2019

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VDI Wissensforum GmbH (ed.)

Dritev – Drivetrain For Vehicles 2019

Series: VDI-Berichte

Volume 2354 2019

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M. Elshaer, C. Chen Wide-Band-Gap (WBG) power semiconductor switches for automotive HV battery chargers – Opportunities & challenges

„… ) System architecture block diagram (b) Power loss breakdown. A. PFC Circuit The PFC-boost converter …” „… , 15, 18]. Fig. 3 shows the topology of a typical quasi-resonant DC-DC converter. The loss breakdown …” „… , 20194 Fig. 3: Isolated DC-DC converter (a) Circuit schematic (b) Loss breakdown. III …”

J. Grabowski, A. Colognese 48V to 12V Converters for xEV Applications – Managing the headaches of dual voltage automotive architectures

„… voltage resulting in a lower power loss. The synchronous buck-boost converter stage is actually two …” „… disconnect switches to reduce losses and maintain high efficiency. Therefore, the cost of this converter …” „… 48V to 12V Converters for xEV Applications Managing the headaches of dual voltage automotive …”

C. Kim New next generation eight-speed automatic transmission for FWD vehicles

„… the friction loss due to viscosity reduction. 4. Torque Converter CPA applied The torsional …” „… , torque converter and oil pump were newly designed to reduce the overall length of the transmission and …” „… increase the transmission efficiency, the clutch drag and oil pump loss was minimized and low friction …”

S. Kluemper Benefits of the new Allison 9-speed fully automatic – Medium duty commercial transmission

„… converter mode. For the new medium duty 9-speed these losses have been minimized by the introduction of 1 …” „… brief discussion on the advantages of the torque converter as a launch device is covered. New optional …” „… in combination with torque converter launch to deliver Allison’s Continuous Power Technology …”

A. Moser, F. Brezger Efficiency improvements in transmissions using new latching technologies in clutch & hydraulic actuation systems

„… vehicle, the DCT utilizes a hydraulic pump for actuation of the clutch and shift forks, which converts …” „… power losses and some approaches to reduce them. BorgWarner investigated several approaches and shows …” „… pressure levels. Here, the leakage losses of an oil feed are avoided totally, but the friction losses are …”

A. Kooy, R. Seebacher Minimize torsional vibrations – Full isolation if necessary

„… combustion engine losses due to lower speeds. If, however, the internal combustion engine is operated at …” „… increased to prevent loss of performance. Other vibration-related challenges arise from downsizing and the …” „… already produced for transmission applications. Two-thirds of those are installed in the converter in …”

W. Wenzel, M. Eglinger, M. Li, C. Sieg, J. Hengst, F. Küçükay Next generation of 48V HEV

„… ) is used. Furthermore, a lossmap-based transmission loss simulation is integrated to improve the …” „… easy to be installed, however, the losses on the recuperation path from the wheels to the motor …” „… characterized by low mechanical losses in the recuperation path. However, the operation point of the EM cannot …”

P. Lück, K. Bennewitz, J. Tousen Volkswagen’s electric drivetrains of the new modular e-drive kit (MEB)

„… to run on overload for short periods and at low drag losses. Therefore, it fits perfect for …” „… platform, the DC/DC converter for supplying the vehicle's 12 V electrical system is not integrated into …” „… the PI, but designed as a separate, liquid-cooled component. The converter can be variably installed …”

S. Demmerer Efficiency of electric axle drive systems – Potential of multi-speed-drives

„… and energy in. In the best case, without any losses, it is 100%. In conventional powertrains, the …” „… e-drive converts electric energy into mechanical energy while driving and mechanical energy into electric …” „… charged energy. Lower charged energy leads to lower losses by the charger. This can be a significant …”

G. Hellenbroich Low-cost DCT for emerging markets incl. 48 V hybridization

„… transmission length. For the hybridization of torque converter based transmissions such as conventional …” „… automatic transmissions, one common solution is the replacement of the torque converter by an electric …” „… converter based transmissions, hybridization of DCT presents an unequally bigger challenge: For a P2 …”

K. Hasegawa, D. Kosaka, S. Shimizu, K. Kawabata, H. Tsukashima Development of new hybrid AWD system for the SUV segment

„… to compensate for driving force loss that occurs when the main front driven wheels slip. To …” „… capable of compensating for front-wheel driving force loss at the rear wheels. Sufficient acceleration to …” „… inverters after the boost converter steps up the voltage supplied by the high-voltage battery. The overall …”

S. Kurokawa, M. Kunihisa, Y. Oyama Development of a new next-generation CVT for small cars

„… (mm) Distance between Pulley shafts Item Torque capacity Control system Torque converter size Gear …” „… : Cross-sectional view of variator structure 4-3 Efforts to reduce mechanical losses Low-friction ball …” „… efforts made to improve vehicle fuel economy, hardware measures were adopted to reduce mechanical losses …”

A. Kinigadner, T. Biermann Schaeffler eAxle family – future solutions for the electric drivetrain

„… eddy-current-driving voltages and thereby result in losses due to heating of the stator and rotor, are relevant. These …” „… process is eliminated. This helps to reduce eddy current losses, increase the cooling surface area of the …” „… limitations, loss optimization, torque accuracy, functional safety, and the utilization of various voltage …”

M. Lindström Gas powered heavy duty vehicles from Scania: Current program and future potential

„… pumping losses. The EGR-system can be seen on the hot side of the engine in Fig. 3. VDI-Berichte …” „… automatic transmission with a torque converter or with Scania Opticruise. The Scania Opticruise is an …”

L. Herdle 7DCT/HDT400 – New fuel-efficient FWD DCT and hybrid transmission for up to 400 Nm

„… sliding speed in the mesh. A second area of improvement is a reduction of oil splash losses: A lower oil …” „… systems. For a fair comparison the connecting and damping element (Flex plate for torque converter …”

A. Locher, M. Ebenhoch, P. Gutmann Innovative 8HP modular design kit for conventional, MHEV and PHEV transmissions

„… suppliers. Torque converter transmissions, dual clutch transmissions and continuously variable …” „… purely electric driving results in significant CO2 advantages. In addition, mechanical losses in the 4th …”

C. Schoerghuber, I. Müller, H. Wiener Dedicated hybrid transmission for commercial vehicle applications – Mechanical layout, system analysis and simulation of a dedicated hybrid transmission for commercial vehicles

„… considered system and negative if the power is going out of the system. No losses are considered in the …” „… . The resulting transmission output power equals the battery power as no losses are considered in Fig …” „… . 2354, 201944 sion (AT) and torque converter is performed. Thereby, a state-of-the-art AT transmission …”

K. von Rueden, C. Danzer, J. Liebold, T. Mueller, T. Hirschbeck 1, 2 or 3 – how much it would be? Evaluating the need of multispeed electric drives coming from different perspectives

„… the three points of view: • Vehicle longitudinal performance, • Efficiency, powertrain losses and …” „… socalled DC/DC-voltage increased by means of a boost converter, or the maximum switching frequency of the …” „… , speed-dependent losses, such as friction losses on bearings and seals or the ventilation losses of the rotating …”

M. Maillard, L. Laurenty, S. Chretien Impact of hybridization on functional safety for low voltage eMotors – Impact of electrical and hybrid architectures (P2 P4) on the ASIL of electrical machines (eMotors)

„… or negative, Loss of torque, no torque, under torque positive or negative) Table 4: Powertrain …” „… safe state is ASC mode (Active Short Circuit). The ASC mode prevents the machine to convert mechanical …”

A. Harsch, G. Clausen, A. Rink Modular system 8G-DCT with all-wheel drive

„… automatic transmission with torque converter for Mercedes-Benz specific comfort, figure 2, [2]. Featuring …” „… Minimization of mechanical and electrical losses Reduction of weight through systematic lightweight design …” „… the disconnect clutch find place in the power head. The low-loss wet disconnect clutch is integrated …”

R. Nasdal, K. Masser Diverse requirements, one product family – The HV Kit for LCV from MAGNA

„… only few components are contributing to losses in transmission system. These are mainly gears …” „… manual transmissions. Torque-Converter Automatics use the same components but in addition a …”

A. Esser, J.-E. Schleiffer, T. Eichenlaub, S. Rinderknecht Development of an optimization framework for the comparative evaluation of the ecoimpact of powertrain concepts

„… and power ratings of energy converters are assigned to characteristic vehicles that are intended to …” „… that consists of components for the energy converters (Internal Combustion Engine ICE, Electric …” „… into account. Subsequently, the operating strategy chooses operating points for the energy converters …”

V. Schroiff A modular Concept for EMI shielding of thermoplastic housings for E-Cars – An innovative approach to support weight saving and function integration

„… task as the seal against media loss, dirt and water penetration. However, it is based on completely …” „… , converters and onboard charging units What’s the impact from AUTOSAR and ASIL? Design and test methods of …”

K. Baron, C. Rübsam, M. Werra, F. Küçükay Hybridized manual transmission – Opportunities and challenges of mild hybridization

„… electrical motor and an electric actuated clutch. Components like DC/DC converter and 48V battery are not …” „… wheels resulting in low torque losses in electrical drive mode and recuperation. To keep the …” „… the wheels independently from gear actuation. The negative effect of propulsion torque loss during …”

A. Lampe, R. Serway, L. Große Siestrup, C. Gühmann Artificial intelligence in transmission control – Clutch engagement with reinforcement learning

„… low-speed range thanks to the natural, smooth transmission behavior of the hydraulic torque converter. In …” „… 's expectations. While a hydraulic torque converter is mechanically designed to fulfill these requirements, an …” „… additional friction loss constraints which must be taken into account when defining the control targets. As a …”

doi.org/10.51202/9783181023549

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VDI Wissensforum GmbH (ed.)

ELIV 2023

Series: VDI-Berichte

Volume 2423 2023

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D. Nardo, G. Aiello, F. Gennaro Analysis of WBG based hybrid semiconductors approach for bidirectional PFC in On-board charger applications S. 223-234

„… converter, considering only the power losses of all semiconductors, for both horizontal and vertical legs …” „… higher operating temperature compared to silicon. Moreover, WBG reduces conduction and switching losses …” „… switching losses and optimize the RDS(on)xArea (Ω/cm2). Table 1: Summary of material properties and their …”

A. Hensel, D. Derix, J. Bornwasser Power electronic system technology for future high-power charging systems on highways or large inner-city electric charging stations with several MVA system size S. 235-246

„… losses lead to a high compactness and at the same time high efficiency. In simulations, efficiencies of …” „… system. The long cable runs and high power ratings result in high installation costs and high line losses …” „… range of 1.5 kVDC (see Fig. 1). A galvanically isolated converter couples the DC distribution network to …”

S. Miller, L. Nicoletti A Holistic Approach for Designing a Battery Electric Vehicle Thermal Management System S. 77-90

„… (and the DC-DC converter) are represented together and have a lesser impact. The HVAC losses are …” „… energy losses occurring in the powertrain, drivetrain, and thermal management components. Subsequently …” „… the thermal behavior of these components, it is necessary to model their electrical load, losses, and …”

T. Hinzmann Achieving Ubiquitous Connectivity for Future Vehicles S. 331-346

„… . It will turbocharge the 5G FR1 MIMO performance, avoiding signal loss on cables inside the car …” „… satellite result in high losses and reduced signal strength performance and, thus, data rate. Fig. 6: Low …” „… transmission. Its own transceiver and data converters feed each antenna element. Digital beamforming enables …”

doi.org/10.51202/9783181024232

Yuhong Song - Suppressing Electromagnetic Interference in Switching Converters by Chaotic Duty Modulation

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Yuhong Song

Suppressing Electromagnetic Interference in Switching Converters by Chaotic Duty Modulation

Series: Informatik/ Kommunikation

Volume 850 2017

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Introduction S. 1-13

„… 1 Introduction 1.1 Switching Converters A power supply is the device which transforms the …” „… frequency [1]. It makes use of the rectifier or the inverter, or both. A rectifier converts AC into DC while …” „… an inverter DC into AC, which are called AC-DC converter and DC-AC converter respectively. The …”

System Stability under Chaotic Duty Modulation S. 57-71

„… 6 System Stability under Chaotic Duty Modulation 6.1 Introduction The switching converter is a …” „… ]. According to the classical control theory, the stability analysis of the switching converter is normally …” „… analyze the stability of boost converter with chaotic frequency modulation [53], and CaliskanV used CAM to …”

Titelei/Inhaltsverzeichnis

„… existing PWM module of the switching converter, which is practicable without the loss of the generality. It …” „… Reihe 10 Suppressing Electromagnetic Interference in Switching Converters by Chaotic Duty Modulation …” „… Suppressing Electromagnetic Interference in Switching Converters by Chaotic Duty Modulation DISSERTATION zur …”

Conclusions S. 88-89

„… switching converter, which is practicable without the loss of the generality. b. The central frequency of a …” „… 9 Conclusions Switching converters play an important role in many fields. However, converters …” „… EMI for application of switching converters. Chaotic modulation has been developed to suppress EMI of …”

The Remaining Useful Life under Chaotic Modulation S. 72-82

„… rising result in the increase of the output voltage ripples in buck DC converter with computer simulation …” „… the remaining useful life of switching converters. Firstly, from the failure modes of the switching …” „… converter, the critical components and their failure model are obtained, which lead to the whole converter …”

doi.org/10.51202/9783186850102

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