Influence of car body materials on the common-mode current and radiated emissions induced by automotive shielded cables

In order to reduce the radiated emissions due to high power converters in electric and hybrid vehicles, shielded cables are systematically used. This paper presents measurement results of the common-mode current and the radiated magnetic field produced by a shielded cable when different car body materials are considered. A simple but sufficiently representative measurement setup has been defined and constructed to take into account the impact of the new materials considered in automotive industry, such as low conductive carbon fiber reinforced epoxy. The results obtained allow evaluating the magnetic field produced between 10 kHz and 10 MHz when the shielded cable is either inside or outside the car body.