Conclusions
In a hybrid car, dc and ac ELF magnetic fields are produced
mainly due to the currents flowing through the circuits, the
motor, and the battery. The measured dc magnetic flux density
was much lower than the limit value. For the ac magnetic
field, measurements were performed concerning the
percentage of the 1998 ICNIRP reference values for the exposure
of the general public. The results showed that the produced
magnetic field remained below these 1998 ICNIRP
reference values for all driving conditions for all examined
cars. The positions with the higher measured values were
located mainly at the rear seats of the cars at foot level and
instantaneously reached 78.8% of the relevant reference values.
It should be also noted that a remarkable increase of
the measured magnetic field values was monitored during
braking and speed-up. Finally, it is clear that the measurement
results depend on the technology type and the structure
of the car model as well as the driver’s behavior (the
human factor) in all the examined driving conditions.