Detection of ECU Speed based on Fourier Transform and Lifting Wavelet

摘要：

IPC(industrial personnel computer) emits the frequency signal to simulate the rotating speed through timer 8253. However, ECU(eIectronic control unit) sometimes can not recognize the discontinuous frequency signal. Lifting wavelet is widely applied to locate the abrupt signal because it can simultaneously show the local characteristic of time domain signal and frequency domain signal. Fourier transform and lifting wavelet are used to detect the rotating speed change, respectively. The simulation results show that lifting wavelet can accurately and effectively detect the singularity of vehicle speed change such as speed decreasing and speed increasing, but Fourier transform fails to detect these singularities. Accurate singularity acquisition by lifting wavelet has potential application for further improving ECU performance.

关键词： lifting wavelet electronic control unit (ECU) detect speed singularity

作者: Jianping Zhou Yingping Zheng

作者单位: School of Power and Automation Engineering Shanghai University of Electric Power Shanghai, China School of Electronics and Information Tongji University Shanghai, China

会议类型: 国际会议

会议名称: 2011 3rd International Conference on Computer and Automation Engineering(ICCAE 2011)(2011年第三届IEEE计算机与自动化工程国际会议)

会议地点: 重庆

会议语种:英文

页码: 151-153

在线出版日期: 2011-01-21（万方平台首次上网日期，不代表论文的发表时间）