A statistical cable harness model is developed to account for the random disturbance of the wire positions along hand-assembled bundles. The non-uniform random bundles are modeled as n-cascaded segments of uniform multi-conductor transmission line. At each section, all wire positions are disturbed with random numbers obeying a Gaussian distribution. In addition, a spline interpolation function is used to improve the smoothness of wires winding along the bundle. The common-mode current distribution along the bundle calculated with SPICE is injected into a full-wave tool, e.g., FDTD, as impressed current sources. Thus, the full-vehicle electromagnetic emissions from the automotive harness can be predicted efficiently. The model has been experimentally validated with a controlled laboratory setup.

Meeting Name

IEEE International Symposium on Electromagnetic Compatibility (2006: Aug. 14-18, Portland, OR)


Electrical and Computer Engineering

Research Center/Lab(s)

Electromagnetic Compatibility (EMC) Laboratory

Keywords and Phrases

EMI; Automotive EMC; Cable Bundles; Common-Mode Current; Random; Statistical; Electric Cables; Electric Lines; Gaussian Distribution; Interpolation; Mathematical Models; Statistical Methods; Automotive Industry; Automotive Engineering; Power Cables; Wire; Electromagnetic Interference; Electromagnetic Compatibility; Spline; Laboratories; Fractals; Routing

International Standard Book Number (ISBN)


International Standard Serial Number (ISSN)


Document Type

Article - Conference proceedings

Document Version

Final Version

File Type





© 2006 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Aug 2006