@incollection{WalterSchwanzerHagenetal., author = {Walter, Stefanie and Schwanzer, Peter and Hagen, Gunter and Haft, Gerhard and Dietrich, Markus and Rabl, Hans-Peter and Moos, Ralf}, title = {Hochfrequenzsensorik zur direkten Beladungserkennung von Benzinpartikelfiltern}, series = {Automobil-Sensorik 3}, booktitle = {Automobil-Sensorik 3}, editor = {Tille, Thomas}, publisher = {Springer Vieweg}, address = {Berlin}, isbn = {978-3-662-61259-0}, doi = {10.1007/978-3-662-61260-6_7}, pages = {185 -- 208}, abstract = {In Folge der Versch{\"a}rfung der gesetzlichen Abgasnormen wurden f{\"u}r direkt-einspritzende Benzinmotoren Partikelfilter notwendig. Zur Beladungs{\"u}berwachung k{\"o}nnen aufgrund stark unterschiedlicher Rahmenbedingungen die aus Dieselmotoren bekannten Systeme, wie dem Differenzdrucksensor, nur eingeschr{\"a}nkt {\"u}bernommen werden. Ein hochfrequenzbasiertes Verfahren koppelt mittels Antennen elektromagnetische Wellen in das Filtergeh{\"a}use ein, deren Ausbreitungsverhalten durch die dielektrischen Eigenschaften des eingelagerten Rußes beeinflusst wird. Hierdurch kann bei Auswertung von Transmissionsd{\"a}mpfung oder Resonanzfrequenzen die Rußbeladung direkt detektiert werden.}, language = {en} } @misc{SchwanzerMieslingerRabletal., author = {Schwanzer, Peter and Mieslinger, Johann and Rabl, Hans-Peter and Dietrich, Markus and Haft, Gerhard and Walter, Stefanie and Hagen, Gunter and Moos, Ralf and Gaderer, Matthias}, title = {Monitoring of a Particulate Filter for Gasoline Direct Injection Engines with a Radio-Frequency-Sensor}, series = {11th International Exhaust Gas and Particulate Emissions Forum, 3.-4.3.2020, Ludwigsburg, Germany}, journal = {11th International Exhaust Gas and Particulate Emissions Forum, 3.-4.3.2020, Ludwigsburg, Germany}, abstract = {In order to comply with future emission regulations, the use of particulate filters in vehicles with direct injection gasoline engines is essential. The current amount of soot and ash in the filter is calculated by a soot load model in the electronic control unit in combination with a differential pressure sensor determining the pressure drop over the particulate filter. Active regeneration is initiated if the calculated amount of soot or the measured differential pressure is too high. This is associated with additional fuel consumption. An on-board diagnosis for the particulate filter is currently not part of the Euro 6d emission standard. For future exhaust emission standards, on-board diagnosis or active monitoring of the particulate filter is conceivable. One of the benefits of monitoring is the fact that unnecessary active regenerations can be avoided. As a result, there is no additional fuel consumption due to misinterpretations of the amount of soot in the filter. For active monitoring of the particulate filter, a radiofrequency (RF-) sensor, that detects the soot loading of the filter with electromagnetic waves directly, can be used. Such a system has the advantage that by utilizing the filter as a sensor more precise information about the current state of the filter, e.g. a possible damage, can be provided. Worst-case considerations of filter damages, tested at an engine test bench show the advantages which are entailed by a system like that. By means of partial regeneration of the particulate filter it is demonstrated how the remaining amount of soot in the filter can be detected in a better way in comparison to the differential pressure sensor by using the RF-sensor.}, language = {en} } @techreport{EmmertGlueckFreilingeretal., author = {Emmert, Michael and Gl{\"u}ck, Sven and Freilinger, Eva and Brandl, Dominik and Schindler, Sebastian and Kaul, Nicolas and Rasp, Franziska and Akstaller, Monika and Wetzel, Daniel and Jupke, Michael and Bodensteiner, Michael and Hohlfeld, Philipp and B{\"o}hm, Kevin and Brem, Theresa and Hammer, Pascal and Singer, Thomas and Karing, Maria and Schneider, Viola and Ostermeier, Tobias}, title = {FMS-Berichte (Mai 2021)}, editor = {Meier, Hans and Niemetz, Michael and Reindl, Andrea}, address = {Regensburg}, doi = {10.35096/othr/pub-1915}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-19155}, pages = {99}, abstract = {Dieser Bericht entstand auf Initiative der Studierenden des 2020 neu gegr{\"u}ndeten Masterstudiengangs „Elektro- und Informationstechnik (MEI)", die an der Pflichtlehrveranstaltung „Forschungsmethoden und Seminar (FMS)" im Wintersemester 2020/21 teilnahmen. Diese Lehrveranstaltung hat das Ziel, systematisch an das wissenschaftliche Arbeiten, speziell die Wissenschaftskommunikation, heranzuf{\"u}hren. Daher war geeignete Literatur zu einem individuellen Thema zu recherchieren, Ver{\"o}ffentlichungen auf ihre Relevanz hin zu beurteilen und letztendlich eine eigene Ausarbeitung basierend auf der Literaturrecherche zu erarbeiten und diese in einem Vortrag zu pr{\"a}sentieren. Parallel dazu erfolgte im Theorieteil die entsprechende Hinf{\"u}hrung zu den verschiedenen Elementen der Wissenschaftskommunikation: • Bedeutung der Wissenschaftskommunikation f{\"u}r die Arbeit der Ingenieure in Forschung und Entwicklung • Literaturrecherche, Suchmaschinen, Sichtung und Analyse vorhandener Publikationen, Bewertung der Qualit{\"a}t aufgefundener Fachliteratur, Auswahl geeigneter Materialien f{\"u}r die eigene Arbeit • Aufbereitung und Darstellung der recherchierten technischer Inhalte in Form einer seitenanzahlbegrenzten wissenschaftlichen Ausarbeitung • Einhalten formaler Randbedingungen bzgl. Strukturierung, einschl. Bildnachweise und Zitationsstile • Peer-review-Prozess bei wertsch{\"a}tzender Beurteilung der Leistung anderer • Publikumsangepasstes Aufbereiten komplexer fachlicher Inhalte mit hochschul{\"o}ffentlicher Pr{\"a}sentation der Ergebnisse • F{\"u}hren m{\"u}ndlicher wissenschaftlicher Diskurse Nachdem die Masterstudierenden in der Regel {\"u}ber noch keine eigene wissenschaftliche Forschungserfahrung bzw. -inhalte verf{\"u}gen, lag der w{\"a}hlbare Schwerpunkt der Literatursuche auf der Bearbeitung von vorgegeben aktuellen technischen oder gesellschaftspolitischen Forschungsthemen.}, language = {de} } @techreport{OPUS4-2062, title = {Energienutzungsplan f{\"u}r die Gemeinde Sinzing}, editor = {Neuleitner, Nikolaus and Steffens, Oliver}, organization = {Hochschule f{\"u}r ANgewandte Wissenschaften Regensburg}, language = {de} } @article{Briem, author = {Briem, Ulrich}, title = {Die neue VDI 2500 : Faserseilwissen kompakt}, series = {Logistik f{\"u}r Unternehmen}, journal = {Logistik f{\"u}r Unternehmen}, number = {11-12}, pages = {36 -- 37}, abstract = {Die Richtlinie VDI 2500 „Faserseile" hat 1990 erstmals zusammenfassend den Stand der Technik auf dem Gebiet der Faserseile dargestellt und wertvolle Infor-mationen {\"u}ber Aufbau, Auswahl, Konfek-tionierung und {\"U}berwachung von Faser-seilen gegeben. Die jetzt erscheinende zweite Auflage enth{\"a}lt eine Vielzahl wichtiger technischer Neuerungen f{\"u}r die Praxis. Zu nennen sind hier die hochfesten Fasern und deren Beschichtung sowie die erstmals systematisch aufgef{\"u}hrten Sei-lendverbindungen und ein Ausblick auf die zuk{\"u}nftig bedeutsamen sogenannten Hybridseile. Eine Checkliste hilft bei der richtigen Auswahl und Bemessung von Faserseilen. Bei den Normen wurde - soweit m{\"o}glich - auf europ{\"a}ische Normen verwiesen.}, language = {de} } @article{Briem, author = {Briem, Ulrich}, title = {Umlaufbiegewechselzahl von verdichteten Seildr{\"a}hten}, series = {Draht}, journal = {Draht}, number = {6}, pages = {14 -- 15}, language = {de} } @inproceedings{BuettnerBohigasBoladerasGottschalketal., author = {B{\"u}ttner, Johannes and Bohigas Boladeras, Pere and Gottschalk, Philipp and Kucera, Markus and Waas, Thomas}, title = {Performance Isolation of Co-located Workload in a Container-based Architecture for Automobile}, series = {9th International Conference on Ambient Computing, Applications, Services and Technologies 2019, 22-26.09.2019, Porto, Portugal}, booktitle = {9th International Conference on Ambient Computing, Applications, Services and Technologies 2019, 22-26.09.2019, Porto, Portugal}, isbn = {978-1-61208-739-9}, pages = {31 -- 37}, abstract = {As the development in the automotive sector is facing upcoming challenges, the demand for in-vehicle computing power capacity increases and the need for flexible hardware and software structures arises, allowing dynamic managament of resources. In this new scenario, software components are to be added, removed, updated and migrated between computing units. To isolate the software components from each other and allow its orchestration, a container-based virtualization approach is being tested throughout this research. The analysis focuses on the question if this virtualization technology could be an option to ensure an interference-free operation. Four different sample applications from the automotive environment are tested for their susceptibility to resource contention. The research on the one hand shows that CPU and memory used by an application can be largely isolated with this technology, but on the other hand, it becomes apparent that support for I/O-heavy usage is currently not implemented sufficiently for container engines.}, language = {en} } @misc{Waas, author = {Waas, Thomas}, title = {Energy Monitoring and Saving in Medium-Sized Companies}, series = {5th International Congress on Energy Efficiency \& Energy Related Materials (ENEFM 2019), Gebze Technical University, Turkey, Book of Abstracts}, journal = {5th International Congress on Energy Efficiency \& Energy Related Materials (ENEFM 2019), Gebze Technical University, Turkey, Book of Abstracts}, editor = {Ahmet, Yavuz Oral and Zehra, Banu Oral and Mehmet, Sezer and Mehmet, Emre Ak{\"o}z and Seda, Kol and Onur, Alp and Aksan, Vala and Can, A{\c{s}}kan and Gamze, Sekicek}, pages = {21}, language = {en} } @inproceedings{BrunnerRoederKuceraetal., author = {Brunner, Stefan and R{\"o}der, J{\"u}rgen and Kucera, Markus and Waas, Thomas}, title = {Automotive E/E-architecture enhancements by usage of ethernet TSN}, series = {13th Workshop on Intelligent Solutions in Embedded Systems (WISES), 12-13 June 2017, Hamburg, Germany}, booktitle = {13th Workshop on Intelligent Solutions in Embedded Systems (WISES), 12-13 June 2017, Hamburg, Germany}, publisher = {IEEE}, doi = {10.1109/WISES.2017.7986925}, pages = {9 -- 13}, abstract = {A huge upheaval emerges from the transition to autonomous vehicles in the domain of road vehicles, ongoing with a change in the vehicle architecture. Many sensors and Electronic Control Units are added to the current vehicle architecture and further safety requirements like reliability become even more necessary. In this paper we present a potential evolution of the Electrical/Electronic-Architecture, including a Zone Architecture, to enable future functionality. We reveal the impact on the communication network concerning these architectures and present a potential communication technology to facilitate such architectures.}, subject = {Kraftfahrzeug}, language = {en} } @misc{SchrollDecker, author = {Schroll-Decker, Irmgard}, title = {Rezension zu: Ethik des Wissens. Freiheit und Verantwortung der Wissenschaft in Zeiten des Klimawandels. oekom Verlag (M{\"u}nchen) 2019. ISBN 978-3-96238-163-9}, series = {socialnet Rezensionen}, journal = {socialnet Rezensionen}, issn = {2190-9245}, language = {de} } @article{BraunRablMatysik, author = {Braun, Peter and Rabl, Hans-Peter and Matysik, Frank-Michael}, title = {Investigations on the Liquid-Phase Decomposition of AdBlue Urea for the Selective Catalytic Reduction Process}, series = {Chemie Ingenieur Technik}, volume = {91}, journal = {Chemie Ingenieur Technik}, number = {7}, publisher = {Wiley}, doi = {10.1002/cite.201800055}, pages = {961 -- 968}, abstract = {Difficulties in decomposing AdBlue to ammonia limit the applicability of selective catalytic reduction systems at low exhaust temperatures. Investigations on the decomposition of AdBlue in the liquid phase under elevated pressure at temperatures up to 165 degrees C were carried out. Besides effects of inorganic catalysts, the impact of pH on urea decomposition was examined. After dissolution in aqueous phase, the compounds ZnO, WO3, and MoO3 were found to be effective in liquid-phase AdBlue decomposition. However, the efficiency was dropping significantly over few hours. Decomposition of AdBlue urea was also found to be favored for alkaline and acidic conditions.}, language = {en} } @article{BraunDurnerRabletal., author = {Braun, Peter and Durner, Bernhard and Rabl, Hans-Peter and Matysik, Frank-Michael}, title = {Investigations on the decomposition of AdBlue urea in the liquid phase at low temperatures by an electrochemically induced pH shift}, series = {Monatshefte f{\"u}r Chemie}, volume = {150}, journal = {Monatshefte f{\"u}r Chemie}, number = {9}, publisher = {Springer}, doi = {10.1007/s00706-019-02406-6}, pages = {1633 -- 1641}, abstract = {Ammonia-based selective catalytic reduction (SCR) systems are the most widely used technology for reduction of nitrogen oxide emissions from lean-burn engines such as diesel engines. However, at low exhaust temperatures, the SCR process is limited by difficulties in the decomposition of the ammonia precursor urea, which is carried on-board using an aqueous solution "AdBlue". In this study, the decomposition of AdBlue urea induced by electrical current and the resulting associated pH shifts were investigated in a divided cell configuration in the liquid phase. The decomposition was found to be favored in both electrochemical compartments, anodic and cathodic, at temperatures of 60-80 degrees C compared to a reference without electrochemical treatment. In addition to the determination of ammonia contents using an ammonia sensor, IC/HPLC analyses were carried out for each sample. Different side products such as biuret, nitrate, cyanuric acid, ammelide, and others were formed. In the anodic compartment, nitrate formation could be observed due to oxidation of ammonia at the electrode surface. [GRAPHICS] .}, language = {en} } @misc{Weiss, author = {Weiss, Nils}, title = {Vulnerabilities of OBD2 Dongles}, series = {RCAR Annual Conference, 2018, Munich, Germany}, journal = {RCAR Annual Conference, 2018, Munich, Germany}, language = {en} } @misc{Weiss, author = {Weiss, Nils}, title = {Vulnerabilities of Connected Cars and beyond}, series = {Applied Research Colloquium, 2019, Universit{\`a} Padua, Italy}, journal = {Applied Research Colloquium, 2019, Universit{\`a} Padua, Italy}, language = {en} } @inproceedings{MaeuleRabl, author = {M{\"a}ule, Paul and Rabl, Hans-Peter}, title = {Correlation of Oil Emissions with Particulate Emissions of Gasoline Engines}, series = {Internationales AVL-Forum Abgas- und Partikelemissionen, 20. und 21. Februar 2018, Ludwigsburg}, booktitle = {Internationales AVL-Forum Abgas- und Partikelemissionen, 20. und 21. Februar 2018, Ludwigsburg}, publisher = {AVL Deutschland}, address = {Mainz}, pages = {1 -- 9}, abstract = {Recent developments in exhaust gas legislation make it necessary to focus the research at the particulate emissions from gasoline engines and technologies for their reduction. In addition to the particulates resulting from the combustion of the fuel, the oil emissions represent another possible source for particulate emissions. This paper presents a measurement method which can be used to quantify stationary as well as dynamic oil emissions of gasoline engines. Furthermore, the correlation between the oil emissions and the particulate emissions is the focus of the investigations. Conventional methods for the determination of the oil emissions, such as the gravimetric and the volumetric measurement, are unsuitable since they require long engine operation times to provide useful results. These methods therefore do not allow a fast online measurements during the dynamic operation. For this reason, a new measuring method was used, which allows for a time-resolved online measurement of the oil emissions. This measurement method is based on the sulfur tracer method, which uses the sulfur that is naturally contained in the engine oil as a tracer. The sulfur concentration in the exhaust gas is determined by using an Ion-Molecule-Reaction mass spectrometer. The determination of the particulate emissions corresponds to the PMP regulation. The studies carried out under steady state and dynamic conditions show a clear correlation between the oil consumption and the number of particulates in the exhaust gas. In the case of the dynamic measurements it could also be shown that time-resolved measurements of the oil consumption are possible with the used measurement setup. In addition, it was shown that the number of particulates does not influence the measurement of the SO2-concentration. Furthermore, the different effects of burned and unburned oil emissions have been evaluated by the dosing of the oil into the exhaust gas. The overall conclusion of the measurements shows a strong influence of the oil emissions on the particulate emissions. Therefore, it is crucial to reduce the oil emissions. Possible approaches for this reduction can be improved turbocharger sealing concepts, new piston ring designs or more efficient oil separators for the crankcase ventilation system.}, language = {en} } @inproceedings{SmolareckFaisstSchneider, author = {Smolareck, Elisabeth and Faisst, Holger and Schneider, Ralph}, title = {Modellbasierte Korrektur von Inertialsensor-Signalen - Ein Schritt auf dem Weg zum hochautomatisierten Fahren}, series = {Konferenz: AALE 2018 - 15. Fachkonferenz, Das Forum f{\"u}r Fachleute der Automatisierungstechnik aus Hochschulen und Wirtschaft 01.03.2018 - 02.03.2018 in K{\"o}ln, Deutschland}, booktitle = {Konferenz: AALE 2018 - 15. Fachkonferenz, Das Forum f{\"u}r Fachleute der Automatisierungstechnik aus Hochschulen und Wirtschaft 01.03.2018 - 02.03.2018 in K{\"o}ln, Deutschland}, publisher = {VDE-Verlag}, address = {Berlin}, isbn = {978-3-8007-4522-7}, pages = {1 -- 10}, abstract = {Infolge neuer Zielsetzungen im Automobilbereich, wie z. B. der Weiterentwicklung von Fahrerassistenzsystemen hin zum hochautomatisierten Fahren (HAF), ergeben sich erh{\"o}hte Anforderungen an die Signalg{\"u}te der im Fahrzeug eingesetzten Inertialsensoren f{\"u}r Drehraten und Beschleunigungen. Da deren Erf{\"u}llung {\"u}ber einen hardwarebasierten Ansatz nicht immer m{\"o}glich und sinnvoll ist, strebt die Firma Continental eine Software-L{\"o}sung zur modellbasierten Verbesserung dieser Sensorsignale an.}, language = {de} } @article{GaertnerRablZink, author = {G{\"a}rtner, Uwe and Rabl, Hans-Peter and Zink, Uwe}, title = {Exhaust Gas Aftertreatment of the Future}, series = {MTZ worldwide}, volume = {79}, journal = {MTZ worldwide}, number = {7-8}, publisher = {Springer}, doi = {10.1007/s38313-018-0060-2}, pages = {70 -- 75}, language = {en} } @article{KuepperArtmannPischingeretal., author = {K{\"u}pper, Carsten and Artmann, Christina and Pischinger, Stefan and Rabl, Hans-Peter}, title = {Lube-Oil Dilution of Gasoline Direct-Injection Engines with Ethanol Fuels}, series = {MTZ worldwide}, volume = {74}, journal = {MTZ worldwide}, number = {9}, publisher = {Springer}, address = {Berlin}, doi = {10.1007/s38313-013-0090-8}, pages = {64 -- 69}, language = {en} } @inproceedings{EberhartChungHaumeretal., author = {Eberhart, Philip and Chung, Tek Shan and Haumer, Anton and Kral, Christian}, title = {Open Source Library for the Simulation of Wind Power Plants}, series = {Proceedings of the 11th International Modelica Conference, Versailles, France, September 21-23, 2015}, booktitle = {Proceedings of the 11th International Modelica Conference, Versailles, France, September 21-23, 2015}, address = {Link{\"o}ping}, doi = {10.3384/ecp15118929}, pages = {929 -- 936}, abstract = {This paper presents the new open source Modelica libraryWindPowerPlants. For the economic assessment of either a wind power plant or an entire wind park, the accurate prediction of the energy output is essential. Such prediction is usually performed by means of calculations based on statistical wind data. The proposed WindPowerPlants library is capable of assessing the energy output both for statistical and real wind data based on time domain simulations. In the presented version of the library wind turbine models are modeled with pitch control. The generator models have variable speed and an optional connector to the mains. The entire library is based on power balance conditions and losses are fully neglected. Yet, the library can be extended towards more detailed models considering different types of losses. The structure and components of the library are presented. Simulations examples are shown and compared with reference data. The applicability of the proposed WindPowerPlants library is demonstrated and possible enhancements are discussed.}, language = {en} } @article{KurzweilScheuerpflug, author = {Kurzweil, Peter and Scheuerpflug, Wolfgang}, title = {State-of-charge monitoring and battery diagnosis of different lithium ion chemistries using impedance spectroscopy}, series = {Batteries}, volume = {7}, journal = {Batteries}, number = {1}, doi = {10.3390/batteries7010017}, pages = {16}, abstract = {For lithium iron phosphate batteries (LFP) in aerospace applications, impedance spectroscopy is applicable in the flat region of the voltage-charge curve. The frequency-dependent pseudocapacitance at 0.15 Hz is presented as useful state-of-charge (SOC) and state-of-health (SOH) indicator. For the same battery type, the prediction error of pseudocapacitance is better than 1\% for a quadratic calibration curve, and less than 36\% for a linear model. An approximately linear correlation between pseudocapacitance and Ah battery capacity is observed as long as overcharge and deep discharge are avoided. We verify the impedance method in comparison to the classical constant-current discharge measurements. In the case of five examined lithium-ion chemistries, the linear trend of impedance and SOC is lost if the slope of the discharge voltage curve versus SOC changes. With nickel manganese cobalt (NMC), high impedance modulus correlates with high SOC above 70\%.}, language = {en} }