Filter results

Results (204)

Sort by:

Select all Select all

Page 2

VDI Wissensforum GmbH - Dritev – Drivetrain For Vehicles 2019

Partial access

Select

VDI Wissensforum GmbH (ed.)

Dritev – Drivetrain For Vehicles 2019

Series: VDI-Berichte

Volume 2354 2019

Results in this title

M. Elshaer, C. Chen Wide-Band-Gap (WBG) power semiconductor switches for automotive HV battery chargers – Opportunities & challenges S. II-1-II-14

„… DC-DC circuit Galvanic isolation is a key design constraint for the DC-DC power stage. High-frequency …” „… investigated. Switching frequency impact on semiconductor devices’ losses and magnetic components’ design is …” „… comparison between silicon superjunction (Si-SJ)based design and silicon carbide (SiC)-based design is …”

M. Özbek, J. Trommer, K. Akiyama, Y. Yamada Nidec next generation electric traction motor S. II-77-II-84

„… round wire windings. Furthermore, the permanent magnet rotor design results in a high efficiency and …” „… compact design. The motor is included in Nidec’s own e-Axle that is introduced to the market in May 2019 …” „… described in this chapter and highlights the permanent magnet rotor design and stator distributed winding …”

J. Grabowski, A. Colognese 48V to 12V Converters for xEV Applications – Managing the headaches of dual voltage automotive architectures S. II-45-II-54

„… , this advantage comes with both increased complexity and cost. The sub-system designs used to support a …” „… voltage converter. The methods for overcoming the design challenges are highlighted in this paper and …” „… includes sub-system design details for maximizing cost and efficiency. This topic is of interest to those …”

B. Müller, C. Angrick, M. Fritz New concepts for electrical drive trains for high power density S. II-55-II-66

„… of aggregates are needed for the design implementation of these powertrains: Hybrid modules for …” „… that generate their power from speed instead of torque, enabling smaller designs and material savings …” „… even more true since – depending on the design – the drive’s electric and electronic components make …”

A. Moser, F. Brezger Efficiency improvements in transmissions using new latching technologies in clutch & hydraulic actuation systems S. I-427-I-446

„… multispeed transmissions. The design of DCTs may have a special meaning since they are interesting for not …” „… flow the hydraulic circuit already improves efficiency. In a hybrid, the transmission fluid pump could …” „… and right side), material, geometric design, surfaces and further influences. Typical friction …”

A. Harsch, G. Clausen, A. Rink Modular system 8G-DCT with all-wheel drive S. I-79-I-94

„… Transmission design and specifications The dual clutch transmission is designed in a classic and compact …” „… . The consequent modular design makes it possible to extend the transmission with regard to all-wheel …” „… the intelligent sandwich concept and the distinctive one-box design, the second generation of the …”

H. Schäfer System impacts to the electrical drive by using SIC-power semiconductors S. II-15-II-28

„… inductance will also described as saturation of the iron within the magnetic circuit (see figure 8). The …” „… voltage of the inverter to a common mode voltage, on the other the design of a three phase electrical …” „… machine built up a common mode circuit, mainly consisting of distributed capacities and supplied from the …”

D. Schweigert, M. Mileti, B. Morhard, M. Sedlmair, M. Fromberger, M. Otto, T. Lohner, K. Stahl Innovative transmission concept for hyper-high-speed electromechanical powertrains S. I-541-I-554

„… . Especially for the fixed-speed sub-transmission, different gear designs (i.e. Reference, Low-Loss and …” „… design of the electromechanical powertrain. In addition, first simulative results of the efficiency and …” „… , could successfully demonstrate the advantages of such a design. Hence, in order to develop and further …”

P. Fietkau, N. Lamparsky, M. Felbermaier, A. Fröhlcke, T. Conze Holistic design approach for electric drives S. I-163-I-178

„… , Thermal and Actuation DPSs, all temperatures are determined and the lubrication circuit is designed. The …” „… including support arms. Here, not only are already designed parts checked - design proposals are also …” „… simulate the gearbox oil circuit. This helps with designing the switching valves, measuring coolant and …”

P. Lück, K. Bennewitz, J. Tousen Volkswagen’s electric drivetrains of the new modular e-drive kit (MEB) S. I-515-I-530

„… ) The modular design of the PI is configured for high volume industrialization. From the power module …” „… delay of bus communication. The advantages of this design are more direct adaptation options in the …” „… through a coolant connecting hose into the outer cooling circuit of the vehicle (fig. 8). 2.2.5 …”

M. Scherpelz, J. Bernhardt, T. Weyh Simulation of load cycles for commercial vehicle drivelines based on statistical reasoning S. III-85-III-102

„… behave in comparison to my design cycle?" is a typical question that cannot be answered easily. Under …” „… to these new routes. A comparison with the original design cycle is possible and new service life …” „… to extrapolate loads to derive design targets and reference customers. This can be done with the …”

A. Kinigadner, T. Biermann Schaeffler eAxle family – future solutions for the electric drivetrain S. I-567-II-VIII

„… with intelligent design of the electric drive system, an optimum power density can be achieved …” „… configurations with coaxial or parallel axis transmission design allows a range of vehicle applications from …” „… transmission designs including an electric machine which can be implemented with a scalable output. Both …”

S. Kurokawa, M. Kunihisa, Y. Oyama Development of a new next-generation CVT for small cars S. I-385-I-396

„… valve is positioned in the hydraulic circuit between the control valve and the case (Fig. 10). These …” „… established by incorporating the shift design technologies accumulated for small and midsize cars, while …” „… designed for mini-vehicles In line with the future forecast for mini-vehicles, the new CVT was planned …”

doi.org/10.51202/9783181023549

Axel Hald - Methoden zur Analyse parasitärer elektrostatischer Effekte in mikroelektromechanischen Systemen

Partial access

Select

Axel Hald

Methoden zur Analyse parasitärer elektrostatischer Effekte in mikroelektromechanischen Systemen

Series: Rechnerunterstützte Verfahren

Volume 473 2020

Results in this title

Literaturverzeichnis S. 145-154

„… Conference Mixed Design of Integrated Circuits and Systems - MIXDES 2013. Juni 2013, S. 17–22 (siehe S. 28 …” „… International Conference Mixed Design of Integrated Circuits and Systems - MIXDES 2012. Warsaw, Poland, Mai 2012 …” „… Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design (SMACD …”

doi.org/10.51202/9783186473202

Matthias Thiele - Elektromigration und deren Berücksichtigung beim zukünftigen Layoutentwurf digitaler Schaltungen

Partial access

Select

Matthias Thiele

Elektromigration und deren Berücksichtigung beim zukünftigen Layoutentwurf digitaler Schaltungen

Series: Elektronik/Mikro- und Nanotechnik

Volume 395 2017

Results in this title

Literaturverzeichnis S. 134-150

„… Transactions on Computer-Aided Design of Integrated Circuits and Systems, 25 (6): pp. 1038–1046, 2006. DOI …” „… Computer-Aided Design of Integrated Circuits and Systems, 23 (1): pp. 80–90, January 2004. DOI: 10.1109/TCAD …” „… Design of Integrated Circuits and Systems, 31 (7): pp. 1050–1060, July 2012. DOI: 10.1109/TCAD …”

Titelei/Inhaltsverzeichnis S. I-X

„… meiner Tätigkeit am Institut für Feinwerktechnik und Elektronik-Design (IFTE) zunächst im …” „… Application Specific Integrated Circuit CMP Chemical Mechanical Polishing CNF Kohlenstoffnanofaser CNT …” „… high current densities in metal interconnects of integrated circuits. While previously only considered …”

doi.org/10.51202/9783186395092

Junying Niu - Suppressing Electromagnetic Interference in Switching-Mode Power Supplies by Chaotic Carrier Frequency Modulation

Partial access

Select

Junying Niu

Suppressing Electromagnetic Interference in Switching-Mode Power Supplies by Chaotic Carrier Frequency Modulation

Series: Informatik/ Kommunikation

Volume 851 2017

Results in this title

Chaotic Carrier Frequency Modulation Module S. 17-33

„… Switching converter Figure. 2.1: The circuit design of CCFM scheme based on PWM IC 17 2 Chaotic Carrier …” „… products. To implement CCFM, the whole control circuit containing chaotic modulation circuit was designed …” „… ]. Most of the schemes adopt the same PWM IC, i.e. UC3825, and are designed in the same circuit structure …”

Introduction S. 1-16

„… shown in Fig.1.10, a module circuit is designed to implement CCFM on various products, for which the …” „… IC will be designed in chapter 5. Chaotic frequency oscillator will be designed with Chua’s circuit …” „… design of SMPS products. 1.2 EMI and EMC EMI [3] is a disturbance caused by an electromagnetic field …”

Conclusion S. 93-94

„… contributions of the dissertation are as follows: (1) With the advantages of low cost, low design complexity …” „… can be set by adjusting certain circuit parameters. Therefore, the EMI reduction effectiveness can be …” „… employed in all kinds of PWM IC to improve EMC of SMPS without modifying the original circuit of power …”

Digital Chaotic Frequency PWM IC S. 78-92

„… design application specific integrated circuit (ASIC). To realize chaotic modulation on the digital …” „… PWM period counter pre-assigned value Nc 6.3.5 Circuit Design of CDPWM Because xn ∈ (0, 1), xn should …” „… be further processed to get the integer Nc. A preassigned value processing circuit is designed as Fig …”

Analogue Chaotic Frequency PWM IC S. 64-77

„… 4 v1 vchaos Figure. 5.4: Amplifying circuit for setting the chaotic threshold voltage 68 5.3 Design …” „… chaotic frequency PWM IC will be designed, and then the design of the digital one will be discussed in the …” „… necessary to attach an auxiliary modulation circuit to the original product for implementing CCFM on SMPS …”

Titelei/Inhaltsverzeichnis S. I-VIII

„… .. . . . . . . . . . . . . . . . . . . . . . . . . 83 6.3.5 Circuit Design of CDPWM …” „… Circuit – Spread Spectrum Due to the unpredictable and random-like features of chaotic signals, chaotic …” „… ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 2.3.2 Chua’s Circuit …”

References S. 95-106

„… References [1] R. Lenk. Practical Design of Power Supplies. IEEE Press, 2005. [2] M. R. Yazdani, H …” „… , I. Omura, Y. Sakiyama, M. Yamaguchi, K. Matsushita, and T. Ogura. Critical IGBT Design Regarding EMI …” „… . Wang, and R. Dizaji. Study on Spectral Analysis and Design for DC/DC Conversion Using Random Switching …”

Power Spectral Characteristics of CCFM-based Switching Converters S. 34-44

„… design and can be used to optimize the circuit parameters of the CCFM module. 34 3.1 Introduction (a) R …” „… circuit operates in various state. Secondly, by analyzing the power spectral characteristics of the …” „… of Switching Period In [18, 43, 70], the chaotic signal generated by Chua’s circuit was used to …”

Application of CCFM in LED Drivers S. 45-63

„… circuit board (PCB), which is only 2.5cm long and 3.5cm wide, is designed as Fig.4.2. As shown in Fig.4.3 …” „… Implementation of CCFMModule Figure. 4.2: Printed circuit board (PCB) diagram of the CCFM module Figure. 4.3: The …” „… Fig.4.1, where the inductor in Chua’s circuit is replaced by the circuit composed of C1, R1, R3, R4, R …”

doi.org/10.51202/9783186851109

No access

Select

VDI Wissensforum GmbH (ed.)

Dritev 2023

Series: VDI-Berichte

Volume 2420 2023

Results in this title

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

„… e-Compressor. (Fig. 1) VDI-Berichte Nr. 2420, 202346Classical designs keep the dual circuit layouts, but …” „… minimum. As already mentioned before, the refrigerant circuit is designed as a hermetically closed unit …” „… time. Starting with a standalone solution with a refrigerant circuit designed as a sub-component and …”

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

„… solution with its autonomous cooling design, the Smart eDrive, especially developed for this small BEVs …” „… cost from the water circuit will be used to realise the oil cooled motor and the active lubrication …” „… . The removal of the water circuit is a first level system cost optimization. The oil cooled motor and …”

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

„… of design, material (pairings) and cooling concept. It is done with a reduction of the machine model …” „… considerable structural changes to the mechanical design necessary  No electronics at the rotor necessary, as …” „… within a period of three weeks. The circuit covers a length of Ø 47km. In the following graphic you can …”

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

„… design, possible hardware measures in the inverter help handle the active short circuit case and the …” „… design of a high-performance oil-cooled PMSM-based e-drive system considering these requirements is …” „… . Motivation Weight and space reduction are permanent challenges in the design of electric axle drives in …”

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

„… acting force on the sleeve is directly proportional to the change in inductance of the magnetic circuit …” „… reluctance force in the system is created by striving for a minimal air gap 𝑥 in the magnetic circuit …” „… . symbol unit description 𝐹 𝑁 force W 𝐽 work 𝑥 𝑚 air gap of the magnetic circuit 𝐼 𝐴 current L 𝐻 …”

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

„… advantages of this nested design are the high line density, the significant reduction in material usage of 10 …” „… development and will go into volume production in 2025. The very compact design comprising the electric motor …” „… . Fig. 3: Hybrid module designs: P2 high-voltage module with integrated torque converter (left); P1 …”

M. Gukelberger Magna’s Dedicated Hybrid Drive DHD Duo – a Platformbased two e-Machine System S. 197-204

„… covered by the DHD Duo platform Essentially, the DHD Duo design specifications contained the following …” „… both HEV and PHEV applications. The base architecture is a P1/P3 design with one fixed gear. The P1 …” „… basic design can be simplified or extended in several ways. Firstly, it is possible to dis-pense with …”

S. Yan, P. Piecha, N. Hetzel Virtual Generation of Load Profiles and Spectra for Designing Electrified Vehicles – The influence of software and driving scenarios on powertrain design S. 377-390

„… of software and driving scenarios on powertrain design Dr.-Ing. Steven Yan, Dr. techn. Pascal …” „… unterschiedliche Fahrstile und Verkehrsdichten bein-halten. VDI-Berichte Nr. 2420, 2023 377Abstract The design of …” „… motors as well as the size and design of the traction battery set the framework for the mechanical and …”

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

„… Development and Design of a Range Extended four-speed Two-Drive-Powertrain Aaron Kappes, M.Sc …” „… realization, the underlying design philosophy, and the development methods used in this project. Motivation …” „… considered in the design of an ecolog-ical drive to improve efficiency by installing two smaller EMs instead …”

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

„… Mechanical Engineering, Gear Research Center (FZG), School of Engineering and Design, Technical University of …” „… Hochdrehzahl-Antriebsstrang entwickelt, hergestellt und getestet wurde. Das Design des Speed4E-Antriebsstrangs besitzt …” „… developed, manufactured, and tested. The high-speed design of the Speed4E drivetrain results in maximum …”

doi.org/10.51202/9783181024201

1

2

3 ... 41