Validation of Technical Systems

Validation is the central activity of product engineering and a warrantor for a successful product on the market. Only through suitable validation can technical feasibility and customer benefits be ensured. At the same time, validation represents the most extensive and challenging activity of the product development process. Consequently, we are conducting research on efficient systems, methods and processes allowing for the realization of a holistic validation, integrated with the product development process. The key to this is the system- and function-orientated integration of physical and virtual models of (sub-) systems over the whole product development process. We are focusing our research on the IPEK-X-in-the-Loop-Approach (IPEK-XiL-Approach) for an integrated validation across systems.

RF Validation of Technical Systems

Research Focus

  • IPEK-X-in-the-Loop (IPEK-XiL)-Approach for integrated and continuous validation
  • (Distributed) validation environments inside and across different companies
  • System- and function-oriented integration of physical and virtual models of (sub-) systems
  • (Model-Based) Systems Engineering (MBSE) to support validation activities
  • Model-Based and Maneuver-based approaches for the formalization of validation
  • Individual and organisational acceptance of the investigated methods and processes


Development- & validation environments for:

  • System "(automotive) drivetrains"
    • Conventional drive systems
    • Electrical, hybrid and power-split drive systems
  • Mechanical and mechatronic Subsystems and functions, for example
    • Systems for damping vibrations
    • Clutch-systems
    • Gear box (-topologies)
    • Auxillary equipment
    • Operation strategies
  • Hand-held tools and tool-subsystems


  • IPEK-X-in-the-Loop-Approach (IPEK-XiL-Approach) for an integrated validation of technical systems – “Specific development- & validation methods from theory to realization”
    • (Partially-) electric drive systems
    • Conventional drive systems
    • Subsystems and components of (partially-) electric and conventional drive systems
    • Hand-held tools and tool-subsystems
  • Experimental validation by means of rapid prototyping (3D-printer, laser-cutter…)
  • Validation of the whole system, consisting of human, machine, environment and application in the area of Power Tools
  • (Model-Based) Systems Engineering to support validation activities
  • Distributed validation environments
  • Co-simulation


  • Processes for a continuous validation integrated with the product development process
  • Processes for analysis and integration of the needs of the end-user and further stakeholders (OEMs, component suppliers,…)
  • Processes for benchmarking and standardization
  • Processes for analysis and optimization of NVH-behavior
  • Processes for analysis and optimization of operation strategies


  • Powerful test-benches and measurement technique for a continuous validation based on the IPEK-XiL-Approach (acoustic-roller test bench, automated power-tool test bench, Powertrain-in-the-Loop test bench, …)
  • Various test vehicles (conventional, hybrid, electric) and driving simulator
  • Mechanical and electrical workshops with possibilities for rapid prototyping (3D-printer, laser-cutter…)
  • CAx-Software for Simulation and design, as well as modelling software for SysML modelling

Further equipment of the institute can be found here.

Publications within the Research Field

Adjustable Impedance Elements for Testing and Validation of Aircraft Components and Hand-Held Power Tools
Lindenmann, A.; Heyden, E.; Matthiesen, S.; Krause, D.
2019. Stuttgarter Symposium für Produktentwicklung SSP 2019, Stuttgart, 16. Mai 2019. Hrsg.: H. Binz, 63–72, Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO
Identification of potentials in the context of Design for Industry 4.0 and modelling of interdependencies between product and production processes
Albers, A.; Stürmlinger, T.; Mandel, C.; Wang, J.; Baneres, M.; Behrendt, M.
2019. 29th CIRP Design Conference - Open Design and Design as Expontenial Technology, Póvoa de Varzim, P, May 8-10, 2019
Augmented Reality for Product Validation: Supporting the Configuration of AR-Based Validation Environments
Albers, A.; Reinemann, J.; Hirschter, T.; Fahl, J.
2019. Virtual, Augmented and Mixed Reality : Applications and Case Studies. 11th International Conference, VAMR 2019 Held as Part of the 21st HCI International Conference, HCII 2019 Orlando, FL, USA, July 26–31, 2019 Proceedings, Part II. Ed. J.Y.C. Chen, 429–448, Springer. doi:10.1007/978-3-030-21565-1_29
Virtual Coupling of Powertrain Components: New Applications in Testing
Gwosch, T.; Steck, M.; Matthiesen, S.
2019. ASIM – Simulation technischer Systeme, Braunschweig, 21. Februar 2019 - 22. Februar 2019. Hrsg.: Umut Durak, Christina Deatcu, Jan Hettwer, 163–168, ARGESIM
Neue Prüf(-stands)-Konzepte ermöglichen Validierung mehrdimensional angeregter Triebstrangteilsysteme
Berger, J.; Theuerkauf, R.; Ott, S.
2018. 19. VDI-Kongress SIMVEC - Simulation und Erprobung in der Fahrzeugentwicklung : Baden-Baden, 20. und 21.November 2018, VDI Verlag
Untersuchung des Einflusses der Einlaufprozedur auf das Reibungs- und Verschleißverhalten von geschmierten Kontakten mit der Finite-Elemente-Methode
Joerger, A.; Albers, A.; Reichert, S.
2018. 59. Tribologie-Fachtagung Reibung, Schmierung und Verschleiß - Forschung und praktische Anwendungen (Friction, Lubrication and Wear - Research and Practical Applications) (2018), Göttingen, Germany, September 24–26, 2018
System of systems approach for the description and characterization of validation environments
Albers, A.; Mandel, C.; Yan, S.; Behrendt, M.
2018. Design 2018 : proceedings of the 15th International Design Conference, May 21-24, 2018, Dubrovnik, Croatia. Vol. 6. Ed.: D. Marjanović, 2799–2810, Univ. doi:10.21278/idc.2018.0460
XiL-BW-e – Laboratory Network Baden-Württemberg for Electric Mobility
Albers, A.; Dietmayer, K.; Bargende, M.; Behrendt, M.; Yan, S.; Buchholz, M.; Zaiser, S.; Rößler, A.; Bernthaler, T.
2017. The 30th International Electric Vehicle Symposium & Exhibition, Stuttgart, October 9-11, 2017
Agile product engineering through continuous validation in PGE - Product Generation Engineering
Albers, A.; Behrendt, M.; Klingler, S.; Reiss, N.; Bursac, N.
2017. Design science, 3 (5), 19. doi:10.1017/dsj.2017.5
Frontloading in der Produktentwicklung von Power-Tools durch frühe Validierung mit Hilfe von leistungsskalierten Prototypen
Matthiesen, S.; Gwosch, T.; Mangold, S.; Grauberger, P.; Steck, M.; Cersowsky, S.
2017. Stuttgarter Symposium für Produktentwicklung 2017 (SSP 2017) : Produktentwicklung im disruptiven Umfeld, Stuttgart, Deutschland, 29. Juni 2017
Verifikation und Validierung im Produktentstehungsprozess
Albers, A.; Behrendt, M.; Klingler, S.; Matros, K.
2016. Handbuch Produktentwicklung. Hrsg.: Udo Lindemann, 541–569, Carl Hanser Verlag
Validation - Central Activity to Ensure Individual Mobility
Albers, A.; Behrendt, M.; Ott, S.
2010. Automobiles and sustainable mobility: Proceedings of the FISITA 2010 World Automotive Congress, Budapest, Hungary, May 30 - June 4, 2010, 1 CD-Rom, Gépipari Tudományos Egyesület = Scientific Association for Mechanical Engineering (GTE)

Overview of all IPEK Publications

An overview of all IPEK publications can be found here.