Nourani-Vatani N.,MAN Truck and Bus AG |
Lopez-Sastre R.,University of Alcalá |
Williams S.,University of Sydney
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2015
In this paper we study the challenging problem of seafloor imagery taxonomic categorization. Our contribution is threefold. First, we demonstrate that this task can be elegantly translated into a Structured SVM learning framework. Second, we introduce a taxonomic loss function in the structured output classification objective during learning that is shown to improve the performance over other loss functions. And third, we show how the Structured SVM can naturally deal with the problem of learning from data imbalance by scaling the cost of misclassification during the optimization. We present a thorough experimental evaluation using the challenging and publicly available Tasmania Coral Point Count dataset, where our models drastically outperform the stateof- the-art-results reported. © Springer International Publishing Switzerland 2015.
Demmel P.,MAN Truck and Bus AG |
Hoffmann H.,TU Munich |
Golle R.,TU Munich |
Intra C.,MAN Truck and Bus AG |
Volk W.,TU Munich
CIRP Annals - Manufacturing Technology | Year: 2015
A temperature rise occurs in the sheet metal and tool parts due to the dissipation of a large part of plastic work during blanking. The resulting temperature in the shearing zone has various impacts on the process. The correlation between the temperature rise and sheet metal behaviour under varying process parameters is investigated. Causal associations can be shown by in-situ measurements of the dynamic temperature development at the cutting edge of the punch and analyses of the sheet metal behaviour. The presented results provide essential knowledge for further experimental, analytical and numerical blanking investigations. © 2015 CIRP.
Vogelsang A.,TU Munich |
Femmer H.,TU Munich |
Winkler C.,MAN Truck and Bus AG
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2016
[Context & motivation] Requirements for automotive software systems are predominately documented in natural language and often serve as a basis for the following development process. Therefore, requirements artifact quality is important. Requirements often contain references to specific states of a system, which we call modes (e.g., “While the system is running,...”). [Problem] However, these references are often implicit and therefore, we suspect them as possible source for misunderstandings and ambiguities. [Principal idea] In this paper, we explore the relation between quality defects of natural language requirements and the description of modes within them. For this purpose, we investigate review findings of industrial requirements specifications and assess howmany findings contain issues addressing a mode and which defect types are most affected by mode-related findings. [Contribution] Our preliminary results showthat 46% of all considered review findings contain issues addressing a mode. Defect types in which modes played a major role were completeness and unambiguity. Based on these results, we argue that explicitly specifying modes prior to requirements formulation may increase the artifact quality of natural language requirements specifications. © Springer International Publishing Switzerland 2016.
Vogelsang A.,TU Munich |
Teuchert S.,MAN Truck and Bus AG |
Girard J.-F.,MAN Truck and Bus AG
2012 4th International Workshop on Modeling in Software Engineering, MiSE 2012 - Proceedings | Year: 2012
Functional dependencies and feature interactions are a major source of erroneous and unwanted behavior in software-intensive systems. To overcome these problems, many approaches exist that focus on modeling these functional dependencies in advance, i.e., in the specification or the design of a system. However, there is little empirical data on the amount of such interactions between system functions in realistic systems. In this paper, we analyze structural models of a modern realistic automotive vehicle system with the aim to assess the extent and characteristics of interactions between system functions. Our results show that at least 69% of the analyzed system functions depend on each other or influence each other. These dependencies stretch all over the system whereby single system functions have dependencies to up to 40% of all system functions. These results challenge the current development methods and processes that treat system functions more or less as independent units of functionality. © 2012 IEEE.
Intra C.,MAN Truck and Bus AG |
Zahn T.,MAN Truck and Bus AG
Procedia CIRP | Year: 2014
In today's business environment many enterprises react to changing conditions by implementing a Lean Production System (LPS). Although the basics knowledge about the LPS is available, a powerful and holistic Continuous Improvement Process (CIP) during the Daily Operations is not given in many cases. As a solution the MAN Truck & Bus AG implemented Transformation-Waves as a powerful and holistic addition to the established CIP-concept. The paper describes the state of the art for CIP-concepts as well as the Transformation-Waves in detail. It is validated that they are a very helpful brick for a sustainable vitalization and evolution of the Lean Production System. © 2014 Elsevier B.V.
Schonfeld F.,MAN Truck and Bus AG |
Stretcher M.,MAN Truck and Bus AG
Materialpruefung/Materials Testing | Year: 2014
An operational load related fatigue life assessment of exhaust systems on trucks during the release process is necessary for risk protection. Therefore, a test method and a specific test system were developed. The new developed Hot Shaker Test System is an efficient tool for the required fatigue life assessment. In future, it is possible to investigate modular concepts of exhaust systems and the application of cost-effective materials or manufacturing methods in an effective way. © Carl Hanser Verlag GmbH & Co. KG.
Bauer F.,University of Federal Defense Munich |
Fleischhacker J.,MAN Truck and Bus AG
SAE Technical Papers | Year: 2015
A Hardware-in-the-Loop (HiL) system for Electronic Control Units (ECU) of electro-pneumatic brake systems is presented. The HiL system runs a real-time capable vehicle model comprising of both the vehicle dynamics and the electro-pneumatic brake system. The dynamic behaviour of the vehicle can be simulated either by a real-time multi-body vehicle model or by a simpler system dynamic (double-track) model. To assess the quality of the system dynamic vehicle model, it is compared to a multi-body vehicle model which was validated with comprehensive experimental results. Discrepancies can be seen for highly unsteady manoeuvres. Reasons for these discrepancies caused by the modelling topology of the system dynamic vehicle model are given. In order to simulate the electro-pneumatic brake system, a real-time model has been developed and validated. The different topologies of brake systems can be assembled from components and integrated into the vehicle model. The model of the brake system determines the transient response of brake torques at the wheels as a result of the electrical signals given by the ECU. The HiL system allows the simulation of anti-lock braking manoeuvres as well as manoeuvres that feature interventions of the Electronic Stability Control system (ESC). Using this developed approach, it is possible to estimate the consumption of air during an anti-lock braking manoeuvre or to assess the performance of the ESC during various manoeuvres. In the future, the presented system can support the homologation process of ESC by adjusting the parameters of the system in advance or by a virtual homologation of some of the numerous vehicle variants. © Copyright 2015 SAE International.
Dombrowski U.,TU Braunschweig |
Intra C.,MAN Truck and Bus AG |
Zahn T.,MAN Truck and Bus AG |
Krenkel P.,TU Braunschweig
Procedia CIRP | Year: 2016
In the past decades, the requirements for manufacturing have increased significantly. The major reasons are shorter product and market life cycles, a significantly increased model range but smaller batch sizes and highest technological requirements. In order to distinguish oneself from other companies and to improve the own competiveness in this challenging market, an effective manufacturing strategy is crucial. Therefore, the manufacturing strategy has to be coordinated with other functional strategies and depends on enterprise individual contents. In result, the manufacturing strategy determines the certain use of specific resources and capabilities in manufacturing, which can enable the development and expansion of competitive advantages. However, existing approaches for developing a manufacturing strategy do not allow a sufficient response to the described market situation. In fact, relevant resources and capabilities which lead to a better performance in manufacturing and a higher competitiveness cannot be identified or just with a time lag. To meet the changing market conditions, the manufacturing strategy has to be developed with a new process. Therefore, an approach for developing a manufacturing strategy is presented. This paper points out how manufacturing can enable a decisive differentiation from competitors. In this new process, the development of the manufacturing strategy is seen as an integral part of the enterprise strategy. In summary, the approach allows a unique strategic position that enhances the competitiveness through specific resources and capabilities in manufacturing. © 2016 The Authors.
News Article | December 15, 2016
« VanDyne SuperTurbo using NuVinci technology in next-gen variable speed SuperTurbo; diesel OEM, Class 8 demonstrator | Main | Volkswagen Group invests in Hubject eRoaming platform for EV charging » Digital mapping company HERE will serve as the primary location intelligence provider for RIO, the upcoming cloud-based digital platform for the transportation industry from Volkswagen Truck and Bus. (Earlier post.) Through its location platform, HERE will provide RIO users with highly accurate maps and a rich set of location services like real-time traffic, geocoding and routing for trucks. Additional platform functionalities will also enable users to address specific transportation needs. These include knowing when a moving asset enters or leaves a defined geographic area (“geofencing”); calculating an accurate estimate of trip costs by taking into account various vehicle profiles and toll systems across geographic areas; and creating the optimal sequence of waypoints based on time or distance traveled, factoring in specific delivery timeslots at individual drop-off locations. MAN Truck and Bus AG is the first sponsor of RIO and responsible for developing the brand within the Volkswagen Truck and Bus Group. The launch of RIO, scheduled for early 2017, will be the first time that shippers, dispatchers, carriers, drivers and recipients are connected through a common platform. RIO can be used by any vehicle with an FMS 2.0 interface and any telematics system, including those of competitors, allowing easier and faster flow of information across the entire supply chain.
News Article | December 14, 2016
Eindhoven, Netherlands - HERE, the Open Location Platform company, today announced that it will serve as the primary location intelligence provider for RIO, the upcoming cloud-based digital platform for the transportation industry from Volkswagen Truck and Bus. Through its location platform, HERE will provide RIO users with highly accurate maps and a rich set of location services like real-time traffic, geocoding and routing for trucks. Additional platform functionalities will also enable users to address specific transportation needs. These include knowing when a moving asset enters or leaves a defined geographic area ("geofencing"); calculating an accurate estimate of trip costs by taking into account various vehicle profiles and toll systems across geographic areas; and creating the optimal sequence of waypoints based on time or distance traveled, factoring in specific delivery timeslots at individual drop-off locations. "We have selected HERE for its accurate global map database, rich feature set, and right level of flexibility, which allows for easy implementation. HERE enables us to go to market faster and they provide continued excellent support," said Frank Tinschert, VP Telematics and Digital Solutions at MAN Truck and Bus AG. The company is the first sponsor of RIO and responsible for developing the brand within the Volkswagen Truck and Bus Group. "The HERE location platform provides a rich set of dedicated tools for improved fleet management and logistics. RIO is set to optimize the operations of the transportation industry and can easily turn on further features to make their customers' operations more efficient and cost-effective," said Eric Fumat, VP Global Enterprise Sales at HERE. The launch of RIO, scheduled for early 2017, will be the first time that shippers, dispatchers, carriers, drivers and recipients are connected through a common platform. RIO can be used by any vehicle with an FMS 2.0 interface and any telematics system, including those of competitors, allowing easier and faster flow of information across the entire supply chain. Media Enquiries HERE Communications http://here.com/en/company/newsroom/media-contacts email@example.com About HERE HERE, the Open Location Platform company, enables people, enterprises and cities to harness the power of location. By making sense of the world through the lens of location we empower our customers to achieve better outcomes - from helping a city manage its infrastructure or an enterprise optimize its assets to guiding drivers to their destination safely. To learn more about HERE, including our new generation of cloud-based location platform services, visit http://360.here.com