IPG in Close-up
Publications and Speeches 2013
Evaluation and optimization of steering behavior in overall vehicle context at the "Steering-in-the-Loop" test bench
The integration of the electromechanical steering system into the whole vehicle poses major challenges to development. The steering system is part of complex interlinked networks of mechatronic systems in the vehicle. There is a wide range of interdependencies and action chains which influence both handling and fuel consumption. Therefore, integration at the level of the whole vehicle has to take place in the initial stage of the development. At later stages, faults in the action chain can result in high additional costs.
Paper presented at the VDI Tire-Chassis-Road 2013 Congress in Hanover, Germany
Virtual Test Driving
Hardware-Independent Integration of Series Software
For the verification of Electronic control unit (ECU) software independently of the target hardware, the BMW Group relies on the Virtual verification platform (VAP). To operate intensively interlinked components in the comprehensive interaction with the vehicle and the environment, the concept has been combined with virtual test driving. In conjunction with the open integration and test platform CarMaker, the series software can be integrated into the virtual vehicle without the need for real target hardware.Therefore, the software can be experienced live in the simulated driving situation at the developer's workstation.
Article published in ATZ elektronik 05/2013
Test System for Integrated Safety Systems
Interlinking and integration are playing an increasingly important role in the development of new safety systems. This has led to a rapid growth in testing complexity where the limits of currently used approaches are soon reached. To comprehensively and consistently test the interaction of the individual safety systems in critical driving situations and particularly in accident scenarios, IPG Automotive together with the Ingolstadt University of Applied Sciences, Continental Automotive GmbH and others has developed a new test system.
Article published in Hanser Automotive 10/2013
The inventors of virtual test driving
Whether MIL, SIL or HIL – by using the tools and methods of virtual test driving it is possible to check which effects a single component has on the behaviour of the whole vehicle at every stage of development.
New concepts, components, systems and functions can be analyzed and evaluated consistently across multiple domains this way. Thanks to this, test drivers can fully concentrate themselves again on optimizing the driving characteristics. Furthermore, the developing engineers gain access to the whole vehicle in the virtual world.
Article published in „OEM Supplier 2013“, Hanser Automotive
Papers presented at Virtual Powertrain Creation 2013
The Future in Vehicle Design: Systems Engineering Based Optimization (University of Applied Sciences Munich, Bundeswehr University Munich, AVL, BMW, IPG Automotive)
The properties and functions of a vehicle go far beyond its individual components. The interdisciplinary “Systems Engineering” approach takes up this fact and offers a suitable framework for successful vehicle development. Illustrated by the example of a vehicle design an interdisciplinary tool chain was presented. It allows the systematic design of vehicle architectures, makes it possible to experience the related vehicle properties in maneuvers and to thus quantify the level of target achievement – long before the vehicle is built.
Innovative Simulation Data Management to Support an Efficient Multi-Domain Vehicle Simulation Process (University of Applied Sciences Ingolstadt, AVL, AUDI)
Highly interlinked systems pose major challenges to vehicle developers. Managing the related complexity requires integration as early as possible in the development process and collaboration across the various vehicle domains. One of the major issues in this context is data management and sufficient data quality (for instance, with respect to the verification of functional safety according to ISO 26262). A process for seamless data management in the field of real-time simulation is presented here, with consistency ranging from office and test rig simulation through to final test driving.
Use of Three-Dimensional Vehicle Simulation on a 4x4 Advanced Roller Dynamometer (Institute for Combustion Engines (vkm),TU Darmstadt, TÜV Hessen)
The 4x4 advanced four-wheel roller dynamometer with 3D environmental and vehicle simulation provides a new type of development platform that allows vehicles to be operated and measured in interaction with detailed environment simulation. This makes it possible to model driving on real-world roads including ambient traffic as well as complex maneuver-based tests. Now – using the RealSiMM approach developed by TU Darmstadt – customer-oriented real-world driving can be transferred one-to-one to the roller dynamometer. The presentation shows how the new development environment improves the consistency of simulation and testing, supports management of the multitude of variants and, last but not least, makes it possible to optimize drive systems in a very early development phase.
Integrated Vehicle Performance Evaluation Within an Entire X-in-the-Loop Process With Focus on Powertrain-in-the-Loop (IPG Automotive)
Sub-systems must be integrated as early as possible in the development process and evaluated against the specification. Otherwise additional costs and time losses occur in the event that issues are detected too late. The V-Process provides the framework for frontloading, i.e. the early simulation-based evaluation of full-vehicle properties. Based on the X-in-the-Loop approach, real prototypes may be integrated as well as models. A platform for virtual test driving that is consistently used across all development phases makes it possible to use the same catalog of driving maneuvers and evaluation criteria as in real-world road tests and to thus determine the influence of the sub-system on the vehicle’s properties. An example from drivetrain development serves to illustrate how, by using this method, an early and comprehensive analysis of the influences exerted by individual sub-systems on the overall system is possible.
Mobile Machinery: validation in virtual test driving
The simulation-based validation using TruckMaker is a crucial step to master the challenges regarding the development of mobile machinery. This method brings the development engineers of different areas (e.g. powertrain and chassis) close to the vehicle – with a view to the whole product. Therefore, unwanted interactions between the subsystems can be discovered and remedied at an early stage and cost-efficiently.
Article published in Hanser AUTOMOTIVE, May/June 2013
Camera-based driver assistance systems in the simulation
Besides radar-, lidar- and ultrasonic sensors, modern driver assistance systems make a greater use of cameras, to get a comprehensive picture of the vehicle environment. Thanks to the enhancements within the integration and test platform CarMaker from IPG Automotive, camera-based systems and the algorithms for sensor data fusion in the virtual test drive can be validated practical – consistently in MIL-, SIL- and HIL-tests.
Article published in AutomobilKONSTRUKTION, March 2013
Projekt GreenNavigation: Verbrauchsprognostik für Elektrofahrzeuge
Ganzheitlich geht‘s weiter
Die Elektromobilität ist aus verschiedenen Gründen noch nicht im Alltag angekommen. Einer davon: die Reichweite der Fahrzeuge. Das Projekt „GreenNavigation“ soll das nun ändern, indem es Fahrzeugkonzepte, Kommunikationstechnologien und Entwicklungswerkzeuge entwickelt und
miteinander verbindet, um die Reichweite zu verbessern.
Dr. rer. nat. Alexander Viehl, Abteilungsleiter am FZI Forschungszentrum Informatik im Forschungsbereich Systementwurf in der Mikroelektronik (SiM) und Dr.-Ing. Christian Schyr, Produktmanager für den Bereich Testsysteme bei der IPG Automotive GmbH, erläutern die Hintergründe
und Ziele des Projekts.
Article published in Inventor MAGAZIN, January 2013
Sine of the times
Managing complexity - PSA relies on vehicle dynamics simulation for ESP type approvals
OLIVIER MACCHI AND ALFONSO PORCEL OF PSA PEUGEOT CITROËN,
AND CHARLES MIQUET OF IPG AUTOMOTIVE PRESENT SOME OF THE
CHALLENGES AND INNOVATION IN TYPE-APPROVING ESC BY
MEANS OF VEHICLE DYNAMICS SIMULATION
Article published in Annual Showcase, January 2013