42 V-PowerNets

221 Pages·2003·7.245 MB·English

by  Peter Gresch (auth.), Prof. Dr.-Ing. Hennig Wallentowitz, Dipl.-Ing. Christian Amsel (eds.)

Wallentowitz • Amsel (Eds.)
42 V-PowerNets
ONLINE LIBRARY
Springer-Verlag Engineering
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H. Wallentowitz • C. Amsel (Eds.)
42V-PowerNets
With 168 Figures and 16 Tables
Springer
Editors:
Prof. Dr.-Ing. Hennig Wallentowitz
Dipl.-Ing. Christian Amsel
RWTH Aachen
Institut für Kraftfahrwesen (ika)
Steinbachstr. 7
52074 Aachen, Germany
E-mail: wallentowitz @ ika. rwth-aachen. de
amsel @ ika. rwth-aachen. de
ISBN 978-3-642-62104-8 ISBN 978-3-642-18139-9 (eBook)
DOI 10.1007/978-3-642-18139-9
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Preface
Preface to the Series
EUROMOTOR is an advanced training program sponsored by the Euro-
pean Union for engineers of the European automotive and supplier indus-
try. Its aim is the exchange of experiences with new developments be-
tween industry and university. Courses are offered in all fields around the
automobile, as for example vehicle dynamics, vibration & ergonomics,
powertrain, crashworthiness, manufacturing, aerodynamics, testing and fa-
tigue as well as courses in the field of body engineering and electronics.
For further information, please contact: EUROMOTOR Support Office,
Caroline Marshall, RSBD, University of Birmingham, Birmingham B15
2TT, UK, Tel: [phone], Fax: [phone], e-mail:
[email protected].
Preface to this volume
On June 17th and 18th, the EUROMOTOR Course “1st Aachener Elec-
tronics Symposium" took place at the Institut für Kraftfahrwesen (ika) in
Aachen/Germany. The conference dealt with the main topic
"Fusing Strategies for Future Vehicle PowerNets".
Speakers and participants from the automotive and supplier industry as
well as research institutes reported the latest developments and trends in
the field of fusing strategies. Technical experts in the field of active and
passive fuses as well as systems suppliers presented special methods for
the solution of the partial and overall problems. Intensive discussions
about the technical aspects that have to be considered when introducing the
new 42V-PowerNet into automobiles took place. The event was organized
for a limited number of participants. For each presentation a time limit of
30 minutes with additional 15 minutes for a following discussion was set.
We hope that this compilation provides the reader with a well-balanced
overview of the problems associated with guaranteeing the safety of future
vehicle powernets. In order to ensure a continuous exchange of technol-
ogy, this symposium is planned to be held every two years.
VI
Our sincere thanks go out to the contributors for their eagerness to pre-
sent the state-of-the-art technology from their organisations and for allow-
ing their articles to be published in this volume.

Aachen, 2003 Prof. Dr.-Ing. Henning Wallentowitz
Dipl.-Ing. Christian Amsel
VII
List of authors
Amsel, Christian
Forschungsgesellschaft Kraftfahrwesen mbH, Aachen, Germany

Bellew, Patrick
Littlefuse Ltd, Dundalk, Ireland

Borrego, Carles
Lear Corporation, Valls, Spain

Brinkmeyer; Horst
DaimlerChrysler, Sindelfingen, Germany

Edmund, Erich
Delphi, Wuppertal, Germany

Figuerola, Gabriel
Lear Corporation, Valls, Spain

Fischer, Roland
DaimlerChrysler, Frankfurt, Germany

Fontanilles, Joan
Lear Corporation, Valls, Spain

Graf, Volker
Intedis & Co. KG

Gresch, Peter
Adam Opel AG, ITDC-PE Electronics, Rüsselsheim, Germany

Gretzke, Werner
Tyco Electronics Raychem GmbH, Ottobrunn

Große, Ronald
Forschungsgesellschaft Kraftfahrwesen mbH, Aachen, Germany

Hinrichs, Werner
PUDENZ GmbH, 27243 Dünsen, Germany
VIII

Jasper, Jo
Litlefuse BV, Utrecht, Netherlands

Kroeker, Matthias
Tyco ElectronicsAMP GmbH, 13629 Berlin, Germany

Mäckel, Rainer,
DaimlerChrysler, Frankfurt, Germany

McLoughlin
Littlefuse Ltd, Dundalk, Ireland

Mestre, Jordi
Lear Corporation, Valls, Spain

Niebler, Erich
Vishay Electronic GmbH, Selb

O’Shea, Paddy
Vishay Intertechnology Inc., Ireland

Pohl, Klaus Dieter
Universität-Gesamthochschule Wuppertal, Germany

Seyer, Reinhard
DaimlerChrysler, Frankfurt, Germany

Scheele, Jürgen
PUDENZ GmbH, 27243 Dünsen, Germany

Schmidt, Fritz
DaimlerChrysler, Sindelfingen, Germany

Schulz, Thomas
DaimlerChrysler, Sindelfingen, Germany

Zörn, Ronald
PUDENZ GmbH, 27243 Dünsen, Germany
IX
Contents
Introduction………………………………………………………..… XIII
42V-PowerNet:
Status of Development, Requirements and Perspective……………….. 1
Peter Gresch
1 Introduction………………………………………………………………………1
2 Reasons………………………………………………………………………….. 3
3 Benefits………………………………………………………………………….. 3
4 Challenges………………………………………………………………………. 7
5 Introduction Scenario………………………………………………………….. 10
6 Conclusions……………………………………………..……………………... 12
7 References……………………………………………..……………..………... 14
Cable Fire in Automobiles: Causes, Effects and Prevention……....… 15
Klaus Dieter Pohl
1 Introduction……………………………………………………………………. 15
2 Fire in Automobiles……………………………………………………………. 18
3 Cable Fire as a Source of Fires in Automobiles……………………………….. 21
4 Summary………………………………………………………………………. 38
Circuit protection components
for future vehicle electrical systems…………………………………… 41
Jo Jaspar, Neil McLoughlin, Patrick Bellew
1 Introduction: Higher System Voltage, why and when?……………………….. 41
2 System Definition……………………………………………………………... 43
3 Most realistic Assumptions……………………………………………………. 55
4 Conclusions……………………………………………………………………. 71
5 References…………………………………………………………………..…. 72
Use of PolySwitch PPTC Protectionin Automotive Applications..….. 75
Werner Gretzke
1 PPTC Principle of Operation…………………………………………………... 76
2 Design Considerations for PPTC Devices……………………………………... 78
3 Applications for Resettable Circuit Protection in Automotive Electronics…… 81
4 Compliance with Industry Standards………………………………………….. 86
5 Summary………………………………………………………………………. 87
New Fusing Concept
under Consideration of Wire Characteristics………………...…….… 89
Werner Hinrichs, Jürgen Scheele, Ronald Zörn
X
1 Introduction......................................................................................................... 89
2 Fuse Protection in Automotive Applications………………………………….. 90
3 Definitions, Acronyms, Abbreviations………………………………………... 98
4 References……………………………………………………………………... 99
Overvoltage Protection Devices
for the Automotive Power Network……………………………...…... 101
Paddy O´Shea, Erich Niebler
1 Introduction…………………………………………………………... 101
2 What is the Threat on 14 V/42 V Systems…………………………… 103
3 Load Dump Solutions………………………………………………… 103
4 Module Level Protection 12 V/14 V/42 V…………………………… 107
5 Electrostatic Discharge……………………………………………….. 110
6 Summary……………………………………………………………... 112
Power Switches for the 42V-PowerNet…………….…………..…….. 113
Solution for Power Net Protection and Applications
Matthias Kroeker
1 Introduction…………………………………………………………………... 113
2 Switching 42 V Loads………………………………………………………... 115
3 References……………………………………………………………………. 133
Detection and Characterization of Short Circuits
in 42V-PowerNets…..……………………………………………….… 135
Reinhard Seyer, Roland Fischer, Rainer Mäckel
Horst Brinkmeyer, Fritz Schmidt, Thomas Schulz
1 Introduction....................................................................................................... 135
2 Short Circuits in 42V-PowerNets…………………………………………….. 136
3 Experimental Approach………………………………………………………. 139
4 Characterization of the Criticality……………………………………………. 141
5 Thermal Mode………………………………………………………………... 143
6 Detection of Short Circuits and Protection Concepts………………………… 144
7 References……………………………………………………………………. 145
Investigations of Electrical Failures in the Dual Voltage PowerNet.. 147
Ronald Große, Christian Amsel
1 Introduction…………………………………………………………………... 147
2 Concepts of Investigations of electrical Faults in Vehicle Electrical Systems.. 148
3 Summary……………………………………………………………………… 157
4 References……………………………………………………………………. 159
Protection Strategies for Future Electrical Vehicle Architectures:
Towards Fuseless Strategies.................................................................. 159
Joan Fontanilles, Carles Borrego, Gabriel Figuerola, Jordi Mestre