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1 2010

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Investigations of electromagnetic compatibility (EMC) of vehicles using open-area partially shielded test site model

Łukjanow S., Tokarzewski J.

Journal of KONES

2010

Vol. 17, No. 3

271-277

The technological development in automotive industry that can be observed during the last several decades, especially during the last decade, causes that share of a vehicle electrical and electronic equipment constitutes over 30% of its total worth. This equipment essentially affects the safety of the driver and passengers as well as the driving comfort. In order to fulfill the growing requirements in the range of vehicles safety and reliability, conducting of numerous tests of the electrical/electronic equipment, including tests of electromagnetic compatibility, are necessary. As is known, EMC tests are expensive and difficult to reach, mainly due to the necessity of employing very expensive absorber-lined shielded test chambers. For this reason, there is a need for studying more accessible and less expensive EMC test methods, in particular, by using open-area partially shielded test sites (OAPSTS). In this paper, a model of OAPSTS is described. The model ensures that the tested vehicles are partially separated from the environment by shields attenuating electromagnetic waves. These shields have been made of electro-conductive fabrics worked out in Poland. Tests of vehicle immunity to electromagnetic radiation have been performed using the model of OAPSTS and the following vehicles: Skoda Octavia 1,8 and Daewoo Lanos 1,6. Estimation of parameters of the OAPSTS model for four variants of absorbe s placement has been worked out. The tests have been performed according to EU Directive 2004/104/EC and ECE UN Regulation No. 10.