Design and integration measures to minimize low frequency magnetic field exposure for the occupants of vehicles with electrical powertrains

At present there are no specific product standards relating to in-vehicle electromagnetic field exposure. However, there are general recommendations for field exposure limits from various national and international bodies, such as ICNIRP. Thus, there is a need to develop an understanding of the electromagnetic environment that may result in vehicles equipped with electrical powertrains, and to take account of occupant magnetic field exposure in the design and integration of such vehicles. This paper outlines an investigation of the use of numerical simulation to investigate the impact of relatively simple system integration measures that could be employed in order to reduce in-vehicle low frequency magnetic field exposure due to traction current flowing on the high voltage power distribution network.