The adaptive filtering of engine transient rotating speed signals

摘要：

The calculation of engine transient rotating speed is an important method to identify the working state of the engine and the crankshaft torsion vibration. In the actual working state, the measured engine rotating speed signals contains interference signals, which will reduce the accuracy of the calculation. A new adaptive filtering method of the engine rotating speed is proposed. A narrow band-pass filter with the intermediate frequency changed under the rotating speed variation is designed for the pretreatment of original signals, and the transient rotating speed is calculated with filtered signals. This method is used for the analysis of actual signals of an engine when it is accelerating. The result shows, after preprocessing, interference signals are eliminated, and the accuracy of the calculation of the transient rotating speed fluctuation is increased.

关键词： engine rotating speed adaptive filtering transient rotating speed

作者: Hao Peng Zheng Sifa Lu Chun Lian Xiaomin Li Keqiang

作者单位: State key laboratory of automobile safety and energy, Tsinghua University, Beijing, P.R.China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 279-282

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）