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Conference Paper

 

A.R. Ruddle, L. Low. Simulation of Human Exposure to Low Frequency Magnetic Fields in Hybrid/Electric Vehicles. EMC UK 2014, 7th-8th October 2014, Newbury, UK.

Introduction

Traction currents that are associated with electrical powertrains in hybrid and electric vehicles give rise to low frequency magnetic fields that may present possible EMC and human exposure threats. Consequently, there is a need to investigate these issues during vehicle design, in order to establish that safety and functional performance requirements are not compromised by such stray magnetic fields.

The interaction of magnetic fields with structures such as cars is not easy to measure due to their geometrical complexity, but for the vehicle occupants measurements are impossible, as it would be necessary to probe inside the human body. Simulation, however, is not subject to such practical test limitations and can also provide a wider range of information, at higher levels of detail, than would be practicable from measurements.

Although high-fidelity simulation may not be achievable for complex systems, simpler models can still be useful to study the effects of changes in key parameters that may help to guide decision-making. Examples that are considered here include the use of human model to evaluate the reliability of field reference levels for assessing in-vehicle exposure risks, and analysis of the impact of vehicle structures and materials on the in-vehicle magnetic field.

 

 

 

 

 

 

 

Project acronym:
HEMIS

Project name:
 Electrical powertrain Health Monitoring for Increased Safety of FEVs


Project reference:
FP7-ICT-314609

Start date: 01/06/2012
End date: 30/11/2014


Sponsored by

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