本程序本人在matlab环境中处理电控发动机中处理点火波形，方便分析点火波形从而诊断故障。-The procedure is designed by myself in the matlab environment to deal with electronically controlled engine ignition waveform, to facilitate analysis of the ignition waveform to diagnose the problem.

The easy availability, lower well-to-wheel emissions, and relative ease of use associated with existing engine technology have made ethanol and ethanol-gasoline blends a viable alternative to gasoline for spark-ignition (SI) engines. The lower energy