Research on the application of neural network and expert system in the fault diagnosis of automobile engine

Utilizing two kinds of artificial intelligence technology i.e.neural network and expert system,the fault reasoning and diagnosis were carried out by means of analysis on the contents of CO,HC,CO2,O2 in the exhaust gas discharged form car engine.The neural network and the expert system were linked mainly by series connection;the fault classification was carried out by module of neural network,and through the expert system to give out explanation and further reasoning so as to obtain the concrete diagnosis result,thus realized the rapid,accurate and intellectualized diagnosis on the common faults of engine.