Knock control based on discrete wavelet transform and FPGA

被引：0

作者：

Wang, Yan-Yan ^{[1
]}

Yang, Jian-Guo ^{[1
]}

Song, Bao-Yu ^{[1
]}

Zhang, Kun ^{[1
]}

机构：

[1] School of Automobile Engineering, Harbin Institute of Technology (Weihai), Shandong Weihai 264209, China

来源：

Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University | 2010年 / 44卷 / 10期

关键词：

Control methods - Control model - Edge features - Gasoline engines - Ignition control - Knock intensity - Relative energies - Vibration signal;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

To increase the accuracy of knock detect and control of gasoline engine, discrete wavelet transform(DWT) and Field Programmable Gate Array(FPGA) were applied to knock control. Knock edge feature was extracted from vibration signal by using DWT. A parameter of relative energy for knock intensity evaluation, and a knock feedback ignition control strategy were proposed. The knock control model was established, verified by simulink test, and actualized on FPGA. The results show that the knock control method based on DWT and FPGA can diagnose knock accurately, is suitable for realtime control, and can make gasoline engine work at slight knock area, which is useful for improving the performance of gasoline engines.

引用

页码：1367 / 1371

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