## 4 Discussion  
In recent years, with the continuous development of PEVs, the electrical devices inside these types of vehicles are becoming more and more complex. The electromagnetic exposure of these electrical devices to the passenger when driving has gradually attracted extensive attention. To calculate the distribution of the electromagnetic exposure doses in different organs and tissues of the real human body, for this paper, a real human model with 11 organs and tissues (muscle, bone, heart, lung, liver, kidney, bladder, skull, scalp, white matter, and cerebellum) was built based on the real human anatomy model in the human virtual family project. The inverter of the PEV served as the exposure source, and an equivalent electromagnetic environment model was established in the finite element software Comosol Multiphysics 6.0. The level of electromagnetic exposure that the driver  
Figure 12: Distributions of the J: (**a**) the J in the head; (**b**) the J in the brain tissues; and (**c**) the J in different sections of the brain tissue.  
Figure 13: Distributions of the J: (**a**) the J in different organs; (**b**) the maximum of J in different major organs.  
was subjected to was calculated, as was the distribution of the B-field over the space occupied by the driver's body and the E-field and J in the driver's trunk, head, and main organs. The results show that the distribution of the B-field over the space occupied by the driver's body and the E-field and J in the driver's body were affected by the spatial distance to the exposure source: the PEV inverter. The farther the distance, the weaker the fields. Specifically, due to the different dielectric properties of the different tissues and organs, the values of the E-field and the J in the different tissues also show different distribution characteristics.  
In addition, compared with the previous studies, the main innovative aspects of this paper include the fact that a PEV inverter was used as the electromagnetic exposure source and the electromagnetic dosimetry method was adopted to calculate the electromagnetic exposure levels of different organs and tissues in the driver's body. The results of this study could supplement further studies on human bodies being subjected to electromagnetic exposure inside PEVs. Table 2 shows a comparison between the results of this paper and some existing studies.  
In 1998, the ICNIRP evaluated the safety of electromagnetic exposure to time-varying electric and magnetic fields for frequencies below 100 kHz based on the J in the human body for their BRs. In 2010, the ICNIRP revised the time-varying electric field and magnetic field exposure limits for frequencies below 100 kHz and conducted an electromagnetic exposure safety assessment based on the E-field values inside the human body for their BRs. So, it is worth comparing the E-field with the BR outlined by the ICNIRP. The maximum E-field in the driver's trunk and CNS were about 1.04 mV/m and 0.06 mV/m, respectively, which are well below the BRs defined by the ICNIRP for the human trunk and CNS for general public exposure. The maximum B-field over the space occupied by the driver's body was about 0.03 \(\upmu\)T, which is also well below the RL defined by the ICNIRP for general public exposure. However, due to the fact that the human body is a good conductor, when the human body is in a time-varying magnetic field environment, according to [PERSON]'s law of electromagnetic induction, an induced electric field and corresponding induced current will be generated within the human body. The J in the driver's body was also calculated in this study. The maximum J in the driver's trunk was about 0.34 mA/m\({}^{2}\), and the maximum value in the CNS was 4.28 \(\times\) 10\({}^{-3}\) mA/m\({}^{2}\).