Schmidt W.,Ingolstadt University of Applied Sciences |
Stary C.,Johannes Kepler University
Communications in Computer and Information Science | Year: 2010
Modeling and executing business processes in a subject-oriented way can be considered as a paradigmatic shift in Business Process Modeling and Management. To be effective, traditional functional flow-oriented approaches have to be overlaid and superseded with patterns of actor interactions and the exchange of messages relevant for accomplishing tasks. However, subject-oriented Business Process Management (S-BPM) will only get substantial momentum once the mindset of organization designers and developers has started to change from thinking in terms of functions to thinking in terms of actor interaction. In this paper we propose an initiative designed to trigger that shift in a Community of Practice based on skillful education. In this way, revisiting traditional business process modeling and management can be coupled with experiencing alternatives effectively. © 2010 Springer-Verlag.
Gold R.,Ingolstadt University of Applied Sciences
International Journal of Applied Mathematics and Computer Science | Year: 2010
The control flow of programs can be represented by directed graphs. In this paper we provide a uniform and detailed formal basis for control flow graphs combining known definitions and results with new aspects. Two graph reductions are defined using only syntactical information about the graphs, but no semantical information about the represented programs. We prove some properties of reduced graphs and also about the paths in reduced graphs. Based on graphs, we define statement coverage and branch coverage such that coverage notions correspond to node coverage, and edge coverage, respectively.
Utz S.,Ingolstadt University of Applied Sciences |
Pforr J.,Ingolstadt University of Applied Sciences
15th International Power Electronics and Motion Control Conference and Exposition, EPE-PEMC 2012 ECCE Europe | Year: 2012
Multi-phase converters with coupled inductors achieve high power density and high efficiency and are therefore very suitable for automotive applications. A disadvantage of coupled inductors in comparison to uncoupled inductors is the increased sensitivity to rapid changes of the volt-time product across the windings. These conditions occur at converter turn-on if the converter links two energy nets with constant voltages. In this paper an analysis has been performed to calculate the magnetic flux in the core of coupled inductors during the turn-on of the converter. Results of the analysis show that the peak flux obtained is much higher than the flux under steady-state conditions. To prevent core saturation an optimized start-up switching pattern has been developed for multi-phase converters with coupled inductors and arbitrary number of phases. Measurements with a full-size prototype converter have been carried out that confirm theoretical predictions. © 2012 IEEE.
Roglinger S.,Ingolstadt University of Applied Sciences
Computer Networks | Year: 2011
Intelligent Transportation Systems based on Vehicle-2-X communication have been a major research topic for several years. Meanwhile, deployment strategies for the used Vehicle-2-X systems need to be developed not only to coordinate the market introduction but also to manage the manufacturer's development projects to achieve market-ready products. Such development processes include among others testing periods as major tasks. Thus, the deployment of market-ready Vehicle-2-X system demands for test methodologies designed for that purpose. Among the first introduced Vehicle-2-X applications, intersection related ones will play a major role because of their information flow's simplicity. So, the near future calls for test methodologies particularly for those applications because testing is important for the development of market-ready systems. For that reason, a test methodology is presented which treats systems implementing intersection related Vehicle-2-X applications as systems under test. The stimulation of the system under test is based on input streams and the evaluation is based on output streams. In addition, results of a proof of concept using the Audi travolution system are enclosed. © 2011 Elsevier B.V. All rights reserved.
Ozger E.,Ingolstadt University of Applied Sciences
AIAA Atmospheric Flight Mechanics Conference 2012 | Year: 2012
This investigation presents a new estimation approach that blends equation and output error estimation. The well known equation and output error estimation methods are combined in a flexible and adjustable manner into one estimation approach where the model response and measurement comprise both state and non-state parameters of the system under test. Flight test data of Eurofighter aircraft is artificially generated with added linear error on the derivatives and also process and measurement noise that is analyzed in three domains: equation error, output error, and with the new combined equation/output error methods. Since the aircraft represents a system with highly non-linear aerodynamics and control laws, the output error approach may suffer from the close coupling of its cost function and the non-linear system properties, particularly in the presence of process and measurement noise. In contrast to this equation error being more robust, since this close coupling is bypassed, may not converge as close to the implemented errors as the output error method. The presented combined equation/output error approach blends both estimator properties and gives the engineer the possibility to benefit from both estimation approaches. © 2012 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.
Schmidt W.,Ingolstadt University of Applied Sciences
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2011
In order to optimize academic and outside-university education in BPM it is necessary to know how educational aspects influence the quality of BPM solutions. Information regarding this topic can rarely be found. In this paper we report on a student contest which was carried out to address this problem and gather related information. An introduction is followed by information on the contest setting, the results and findings, before concluding with a summary and a description of research to be done in the future. © 2011 Springer-Verlag.
Nadarajan P.,Ingolstadt University of Applied Sciences |
Botsch M.,Ingolstadt University of Applied Sciences
IEEE Intelligent Vehicles Symposium, Proceedings | Year: 2016
This paper presents a method to predict the evolution of a complex traffic scenario with multiple objects. The current state of the scenario is assumed to be known from sensors and the prediction is taking into account various hypotheses about the behavior of traffic participants. This way, the uncertainties regarding the behavior of traffic participants can be modelled in detail. In the first part of this paper a model-based approach is presented to compute Predicted-Occupancy Grids (POG), which are introduced as a grid-based probabilistic representation of the future scenario hypotheses. However, due to the large number of possible trajectories for each traffic participant, the model-based approach comes with a very high computational load. Thus, a machine-learning approach is adopted for the computation of POGs. This work uses a novel grid-based representation of the current state of the traffic scenario and performs the mapping to POGs. This representation consists of augmented cells in an occupancy grid. The adopted machine-learning approach is based on the Random Forest algorithm. Simulations of traffic scenarios are performed to compare the machine-learning with the model-based approach. The results are promising and could enable the real-time computation of POGs for vehicle safety applications. With this detailed modelling of uncertainties, crucial components in vehicle safety systems like criticality estimation and trajectory planning can be improved. © 2016 IEEE.
Utz S.,Ingolstadt University of Applied Sciences |
Pforr J.,Ingolstadt University of Applied Sciences
IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings | Year: 2011
The impact of input and output voltage perturbations on the behavior of automotive multi-phase converters with coupled inductors has been analyzed. Results have shown that voltage disturbances on the automotive energy net can lead to significant equalizing currents in the converter and perhaps to core saturation or even system failure, if adequate balancing control is not adapted. Analyses have been performed to predict the equalizing currents in the coupled inductors dependent on the input and output perturbations. A full size automotive prototype converter with four interleaved phases and coupled inductors has been built and tested. Measurements with the four-phase prototype converter are in close correlation with theoretical predictions. © 2011 IEEE.
News Article | November 15, 2016
MUNICH, November 15, 2016 /PRNewswire/ -- Once again a MESSRING facility receives the renowned award CARISSMA, the Center of Automotive Research on Integrated Safety Systems at the Ingolstadt University of Applied Sciences receives the renowned "Crashtest Facility of the Year"...
News Article | November 15, 2016
Once again a MESSRING facility receives the renowned award CARISSMA, the Center of Automotive Research on Integrated Safety Systems at the Ingolstadt University of Applied Sciences receives the renowned "Crashtest Facility of the Year" award from the English publishing company UKIP. The facility, which was built and designed by the German crash test manufacturer MESSRING, is one of the core elements in Europe's unique test and research center. In receiving this award, MESSRING continues to build on its success in previous years. For the fifth time a MESSRING facility succeeded in beating out the competition. "Wee are really happy, that CARISSMA won the award. Even for us a system of this size at a university was a challenge. The award demonstrates that we aced it and positioned ourselves as a forward-looking partner", says Dierk Arp, CEO at MESSRING. The renowned English publishing company UKIP has presented the coveted award since 2006 to honor outstanding projects and innovations in the automotive industry. The independent jury is comprised of automotive experts and experienced industry journalists from different media outlets in the automotive and safety testing industry. For CARISSMA MESSRING delivered a MicroTrack system, an electric propulsion system especially designed for crash-test facilities, a mobile impact block, a film pit with transparent cover panels, and a variety of barriers and structures for a number of different impact scenarios to Ingolstadt. The 77-meter crash test facility at CARISSMA was equipped with the proven MESSRING MicroTrack system. The system offers a major benefit: the guide channel is much narrower than in conventional systems, allowing for many more details to be captured in high speed video footage from below in the film pit - a key factor in evaluating vehicle crashing behavior. The special barriers supplied by MESSRING allow the university's engineers to conduct offset tests and small overlap tests, as well as pole tests. These are all mandatory crash-test variations required by individual public testing authorities (such as the well-known NCAP program with the star rating) from North America, Europe, and Asia. The sled-test facility is powered by an electric power train developed by MESSRING especially for use in crash tests. The electric motor for the center will have a power rating of 400 kilowatts. This allows vehicles weighing a total of up to 3.0 tons to be accelerated to a speed of 65 km/h before they collide with the impact block. The special feature of this block is that it can be completely removed to clear the entire space. This allows active-safety tests, e.g. tests with braking assistance systems of vehicles, which require more space. In June 2016 the research facility officially opened its doors at the Ingolstadt University of Applied Sciences. Beside the crash test facility the center, with total floor space of 4,000 square meters, houses a drop-tower lab, a simulation lab, a HiL (hardware-in-the-loop) laboratory as well as a multitude of networked special laboratories and institutions. For the first time, passive, active and cooperative safety systems can be tested in cooperation with each other. CARISSMA is open for joint research projects with scientists, automobile manufacturers and suppliers from all over the world. MESSRING in Krailling, close to Munich is the world's leading manufacturer of crash test systems and components. The mid-size company designs and builds turnkey test systems for customers in all relevant markets and on nearly all continents. To date, MESSRING has implemented more than 100 large crash test systems for automotive OEMs, automotive suppliers, governmental authorities and insurance companies - more than any other company. In the process, the global market leader continues to astonish the industry time and again with innovative advances and revolutionary new solutions, whether in system design, the actual measurement equipment, or in documentation and recording of individual tests. For more information, go to http://www.messring.de