| Bootstrap法在车辆故障检测中的研究及应用 |
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| 引用本文： | 孟庆华,周晓军,庞茂,张金迎. Bootstrap法在车辆故障检测中的研究及应用[J]. 汽车工程, 2005, 27(4): 498-501 |
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| 作者姓名： | 孟庆华 周晓军 庞茂 张金迎 |
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| 作者单位： | 浙江大学机械与能源学院,杭州,310027;浙江大学机械与能源学院,杭州,310027;浙江大学机械与能源学院,杭州,310027;浙江大学机械与能源学院,杭州,310027 |
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| 摘 要： | 介绍Bootstrap方法的原理并将Bootstrap方法应用于检测车辆中存在的故障，通过计算不同故障下的车辆样本之间均匀Kullback-Lcible距离的均值以及在给定置信度下的置信区间等特征值来反映被测车辆的故障种类。给出一种新的随机数产生器用在Bcotstrap法重采样中产生新的随机序列。以车辆卜的驱动桥为检测对象对该算法进行了验证，结果表明该算法能准确检测出驱动桥所存在的故障。
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| 关 键 词： | Bootstrap Kullback-Leible距离 特征提取 故障检测 驱动桥 |
| 收稿时间： | 2004-05-21 |
| 修稿时间： | 2004-05-212004-09-03 |
Study and Application of Bootstrap Method in Vehicle Fault Detection Technology |
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| Meng Qinghua,Zhou Xiaojun,Pang Mao,Zhang Jinying. Study and Application of Bootstrap Method in Vehicle Fault Detection Technology[J]. Automotive Engineering, 2005, 27(4): 498-501 |
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| Authors: | Meng Qinghua Zhou Xiaojun Pang Mao Zhang Jinying |
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| Abstract: | Bootstrap method is presented with its application to vehicle faults detection. The mean and confidence intervals of symmetrical Kullback-Leible (SKL) distances of different vehicle fault samples reflect the type of vehicle faults. A new random number generator is introduced for producing new random series in Bootstrap resampling. The technique is verified by a real example - the detection of faults in the drive axle of a vehicle. |
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| Keywords: | Bootstrap Kullback-Leible distance Feature extraction Fault detection Drive axle |
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