吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (3): 946-952.doi: 10.13229/j.cnki.jdxbgxb201503038

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Application of equivalent cable bundle method in time domain radiation sensitivity of automotive cable harness

GAO Yin-han1, AN Zhan-yang2, WANG Ju-xian2, WANG Tian-hao1, LIU Chang-ying2, ZHANG Jun-dong1   

  1. 1.State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130022,China;
    2.College of Instrumentation& Electrical Engineering,Jilin University,Changchun 130061,China
  • Received:2014-09-19 Online:2015-05-01 Published:2015-05-01

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Abstract: An Equivalent Cable Bundle (ECB) method is developed in this paper. First, a cable observed by simulation is taken as an individual group, and all other conductors of the complete cable bundle are sorted into four groups with respect to the modulus of the terminal loads. Then the unit length inductance matrix and unit length capacitance matrix, the equivalent resistance of the terminal impedance of the simplified ECB model are obtained; the position coordinates of the cable harness in the equivalent model are calculated. Finally, the finite difference time domain algorithm is used to calculate the results with these parameters. The efficiency of this method is verified by numerical experiments of automotive cable harness consisting of 14 conductors. Results show that the computing time for the terminal induction voltage of the integrity models of cable 1, 4, 8, 11 and 14 is all about 11 s; while the computing time of the above terminal induction voltage of the simplified ECB model is all about 5.5 s, that the computing speed is increased by 50%. The ECB method and the finite difference time domain method satisfy the calculation precision and improve the simulation efficiency of automotive cable harness time domain radiation sensitivity.

Key words: vehicle engineering, electromagnetic compatibility, automotive cable harness, equivalent cable bundle method(ECBM), radiation sensitivity, finite difference time domain(FDTD)

CLC Number: 

  • TM934.4
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