Electrical and electronic assemblies in modern control, regulation or production systems, in aircraft and motor vehicles, and in data processing systems are becoming increasingly densely packed. The physical proximity of electronic assemblies, the constantly rising clock and data rates of digital assemblies and wired communication systems, the increasing clock rates of switched power electronic assemblies, and the almost complete utilisation of the frequency spectrum right up into the GHzrange for wireless communication applications are leading to ever-increasing problems of disruptive mutual electromagnetic coupling between electrical and electronic assemblies and devices.
The work of the Electromagnetic Compatibility Research Group at Ulm University of Technology focuses, in part, on the EMC of bus and wireless systems used for high-speed data transmission in motor vehicles (FlexRay, Ethernet, LVDS, USB, Wi-Fi, Bluetooth, etc.). Due to the high packing density of electronic systems and the associated wiring harnesses in motor vehicles, signal integrity, the integrity of the power supply system, and the control of electromagnetic coupling mechanisms continue to pose a major challenge for such systems.
On the other hand, the increasing use of electric drives in motor vehicles gives rise to new types of interference, the control of which—particularly through appropriate design of the overall electronic system in the vehicle—plays a decisive role for future applications. While the focus of the research work in the group in recent years has been on investigating the expected interference and coupling paths, current and future work is concentrated on interference suppression measures and system concepts for the coexistence of electric drive systems and electronic systems in motor vehicles.
In addition, the research group supports a large number of small and medium-sized enterprises in the region through development partnerships on a wide variety of topics in the field of EMC.
Project manager: Prof. Dr. Roland Münzner
Project duration: ongoing
Funding provider: private
Program name: Direct commissions from regional and national industrial companies
Project description:
Numerous small projects provide analysis and development support in the areas of EMC performance and RF performance for various devices and assemblies. This supports development in the field of electronics in numerous companies.
Analysis and development support was provided in the areas of EMC performance and RF performance for various devices and assemblies. In particular, this included carrying out EMC analyses on interference emission and interference immunity of various control devices with the aim of determining the causes of interference and coupling paths with regard to interference suppression and optimization of the devices and their components as well as the development of radio frequency-optimized layouts of the radio interface.
T. Rösch, M. Spägele, H. Leier, R. Münzner: Physical layer and EMC analysis of an HDBASE-T system in an automotive environment, Conference Paper, AmE 2016 - Automotive meets Electronics - 7th GMM Symposium, 2016
M. Spägele, F. Wagner, S. Buntz, H. Leier, S. Lindenmeier, L. Reitery, R. Münzner: Radiated Emission of automotive communication bus systems caused by mode-conversion of common-mode chokes and in-line-connectors, Conference Paper, Proc. of the 2013 International Symposium on Electromagnetic Compatibility (EMC Europe 2013), pp. 455-460, 2013
A. Hänle, R. Münzner, L. Kolb, S. Fuchs, P. Daunke: Analysis and simulation of EMC disturbances in motor vehicles with electric traction, H. Garbe, article in Konferenzbericht emv 2012 - Elektromagnetische Verträglichkeit, pp. 365 - 374, vde-Verlag, 2012
