Misfire Fault Diagnosis Method for Diesel Engine Based on MEMD and Dispersion Entropy

Table 1

Diesel engine misfire fault states.

Number	Misfire cylinder	Corresponding fault
State 1	None	Normal
State 2	1st cylinder of left row	Single cylinder misfire
State 3	1^st cylinder of left row and 6^st cylinder of right row	Neighbor cylinder misfire
State 4	1^st cylinder of left row and 4^st cylinder of left row	Far cylinder misfire