Articles | Volume 13
https://doi.org/10.5194/ars-13-269-2016
https://doi.org/10.5194/ars-13-269-2016
21 Mar 2016
 | 21 Mar 2016

Investigations on the magnetic field coupling of automotive high voltage systems to determine relevant parameters for an EMR-optimized designing

David Krause, Werner John, and Robert Weigel

Abstract. The implementation of electrical drive trains in modern vehicles is a new challenge for EMC development. This contribution depicts a variety of investigations on magnetic field coupling of automotive high-voltage (HV) systems in order to fulfil the requirements of an EMR-optimized designing. The theoretical background is discussed within the scope of current analysis, including the determination of current paths and spectral behaviour. It furthermore presents models of shielded HV cables with particular focus on the magnetic shielding efficiency. Derived findings are validated by experimental measurements of a state-of-the-art demonstrator on system level. Finally EMC design rules are discussed in the context of minimized magnetic fields.

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Short summary
The implementation of electrical drive trains in modern vehicles is a new challenge for EMC development. One crucial issue is the appearance of magnetic fields, which need to be limited due to legal regulations. This contribution therefore depicts a variety of investigations on magnetic field coupling of automotive high-voltage systems. Within the scope of a comprehensive analysis decisive influence quantities are stated and design rules with regard to minimized magnetic fields are discussed.