Title :
Diesel Misfire Fault Diagnosis and Misfire Cylinder Ascertainment Based on Vibration Signal Explosion Peak Identification
Author :
Jianmin, Liu ; Yupeng, Shi ; Xinyong, Qiao ; Xiaoming, Zhang
Author_Institution :
Acad. of Armored Forces Eng., Beijing, China
Abstract :
A method was studied to diagnose diesel misfire fault and ascertain the misfire cylinder number based on recognizing the vibration signal peak points of diesel cylinder head. Based on time-domain characteristics of waveform, seven criteria were described. The computer algorithm to identify time-domain waveform peak and locate misfire cylinder order number without top dead center signal was extracted from the 7 rules. The time domain waveform distribution change was analyzed under diesel misfire condition. The relative ratios of peak value were used on diesel misfire fault diagnosis and cylinder order number identification. The misfire fault identification rate based on this method was 100% in the experiment samples.
Keywords :
diesel engines; engine cylinders; fault diagnosis; signal detection; time-domain analysis; vibrations; diesel cylinder head; diesel misfire fault diagnosis; fault identification rate; misfire cylinder ascertainment; time-domain waveform; vibration signal explosion peak identification; Acceleration; Diesel engines; Explosions; Fault diagnosis; Time domain analysis; Vibrations; Diesel Engine; Misfire Cylinder Ascertainment; Misfire Fault; Peak Identification;
Conference_Titel :
Measuring Technology and Mechatronics Automation (ICMTMA), 2011 Third International Conference on
Conference_Location :
Shangshai
Print_ISBN :
978-1-4244-9010-3
DOI :
10.1109/ICMTMA.2011.271
