The growing challenge of preventing electromagnetic interference (EMI) is particularly acute in the automotive sector. Cars feature increasing numbers of electronic systems, often in close proximity because of packaging constraints. Information systems such as GPS receivers, entertainment systems such as DVD players, and convenience features such as reversing aid cameras all create additional sources of electromagnetic noise. They also increase the number of components that can be affected by interference. The introduction of hybrid and electric powertrains presents further sources of EMI. High-voltage systems and battery packs introduce additional EM noise and create further pressure on vehicle packaging, crowding systems more closely together. As vehicles become more dependent upon the real-time exchange of electronic data, the risks from corruption through EMI vary from mild user inconvenience to major loss of vehicle function.Federal-Mogul eliminated these constraints by developing a proprietary material of tin-coated copper wire and polymeric yarn. Further, a specially-developed manufacturing process controls the placement of the yarns, optimizing the shielding mesh to deliver superior performance while maintaining low weight and flexibility. The result is a family of EMI shielding products that are lightweight and extremely flexible to allow optimal cable routing through crowded system compartments without compromise to component layout. Federal-Mogul’s automotive EMI product range includes FlexFit® 208 EMI, a braided, tubular solution, and TwistTube® 2473, a self-wrapping product. Learn more from Federal-Mogul.
EMI Shielding in Electric Vehicle Applications
