光学精密工程2011，Vol.19Issue(5)：1088-1094,7.DOI:10.3788/OPE.20111905.1088
汽车线束电感性串扰动态变化的预测
Prediction of variation of inductive crosstalk in automotive cable bundles
摘要
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.关键词
电感性串扰/汽车线束/电磁兼容/蒙特卡罗法Key words
inductive crosstalk； automotive cable bundle/ electromagnetic compatibility； Monte Carlo method分类
信息技术与安全科学引用本文复制引用
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的预测[J].光学精密工程,2011,19(5):1088-1094,7.基金项目
高等学校博士学科点专项科研基金资助项目(No.20050183019) （No.20050183019）
吉林省科技发展计划资助项目(No.20080532) （No.20080532）
