Prediction of variation of inductive crosstalk in automotive cable bundles

GAO Yin-han; WANG Rui-bao; LI Bi-ruo; XIE Jun; YANG Kai-yu

doi:10.3788/OPE.20111905.1088

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Prediction of variation of inductive crosstalk in automotive cable bundles

Article | 更新时间：2020-08-12

- Prediction of variation of inductive crosstalk in automotive cable bundles
- Optics and Precision Engineering Vol. 19, Issue 5, Pages: 1088-1094(2011)
- 作者机构：
  
  1. 吉林大学测试科学实验中心,吉林长春,130025
  2. 吉林大学仪器科学与电气工程学院,吉林长春 130022
  3. 中国人民解放军92571部队,海南三亚 572021
  4. 海军工程大学兵器新技术应用研究所,湖北武汉 430033
  5. 空军航空大学特种专业系,吉林长春,130022
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20111905.1088
  CLC： TM934.4
- Received：28 February 2011，
  
  Revised：08 April 2011，
  
  Published Online：26 May 2011，
  
  Published：26 May 2011
- 稿件说明：
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高印寒, 王瑞宝, 李碧若, 谢军, 杨开宇. 汽车线束电感性串扰动态变化预测[J]. 光学精密工程, 2011,19(5): 1088-1094

GAO Yin-han, WANG Rui-bao, LI Bi-ruo, XIE Jun, YANG Kai-yu. Prediction of variation of inductive crosstalk in automotive cable bundles[J]. Editorial Office of Optics and Precision Engineering, 2011,19(5): 1088-1094
高印寒, 王瑞宝, 李碧若, 谢军, 杨开宇. 汽车线束电感性串扰动态变化预测[J]. 光学精密工程, 2011,19(5): 1088-1094 DOI： 10.3788/OPE.20111905.1088.

GAO Yin-han, WANG Rui-bao, LI Bi-ruo, XIE Jun, YANG Kai-yu. Prediction of variation of inductive crosstalk in automotive cable bundles[J]. Editorial Office of Optics and Precision Engineering, 2011,19(5): 1088-1094 DOI： 10.3788/OPE.20111905.1088.

摘要

为了预测汽车运动时其线束的电感性串扰动态变化

建立了均匀、无损、弱耦合、电小尺寸线束的电感性串扰最好、最差情况预测模型和蒙特卡罗方法改进模型。根据导线在线束内几何布置的极限位置

得到电感性串扰的最好、最差情况预测区间;基于蒙特卡罗法得到电感性串扰数学期望值

在80%置信水平下求得期望值的置信区间

置信区间即为改进的预测区间。与EMC Studio仿真软件结果的比较显示

低于5 MHz时

所选位置的线束串扰都在长度为5 dB最好、最差预测区间内

多数位置线束串扰在长度为3 dB蒙特卡罗改进区间内

改进的预测区间缩小了40%;高于5 MHz时

电尺寸趋于电大

误差变大。建立的两个汽车线束电感性串扰预测模型能够根据不同精度要求快速预测电感性串扰动态变化。

Abstract

In order to predict the variation of inductive crosstalk in the cable bundles as the automobile was in motion

both the prediction model of the inductive crosstalk of the best/worst cases and the amended model by Monte Carlo method were established. According to the extreme positions of wires in the cable bundles

the prediction intervals of the inductive crosstalk of the best/worst cases were defined. By using the Monte Carlo method

the mathematical expectation of the inductive crosstalk was obtained

and the confidence interval for the expectation was defined under the circumstance of 80% confidence level. Here

the confidence interval was the amended prediction interval. By comparison with the results from EMC Studio electromagnetic simulation software

it is shown that the cable bundle crosstalks in all selected positions are in the best/worst case interval and most of them are in the amended interval when the frequencies are lower than 5 MHz.The length of the amended interval has decreased by 40%. Moreover

the electrical dimensions tend to electrically large and the error also increases when the frequencies are higher than 5 MHz.It concludes that the both models are simple and convenient to predict the inductive crosstalk rapidly according to different accuracy requests.

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references

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Related Institution

Changchun Institute of Optics，Fine Mechanics and Physics，Chinese Academy of Sciences

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Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

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