Investigation of electromagnetic emissions measurements practices for alternative powertrain road vehicles

Current automotive electromagnetic emissions measurements practices were developed for vehicles equipped with conventional internal combustion engines. However, alternative powertrain technologies based on electric and power cell power sources are not active under conventional (static) emissions test conditions. A program of measurements has therefore been conducted on a small set of representative alternative powertrain road vehicles in order to quantify their emissions and to investigate the associated practical measurement issues. This work also included investigation of emissions at frequencies from 9 kHz to 30 MHz. It is concluded that dynamic test conditions are needed to permit a more realistic assessment of the level of emissions generated by electric powertrain components.