Study On The Design Method Of Failure Self-diagnosis Of Electronic Control Injection Engine

Since the people are continuously raise their demand about automobile dependability, security and green quality, various kinds of self-diagnostic technique are continuously come into being. Yet the failure self-diagnostic unit now is some problems .The author of this paper is aimed at the automobile failure problems and carries on basal research and acquires the below research results.Carry on the detailed investigation to the now available external failure self-diagnostic unit .Carding is classified. Point out the main problem at present that the failure self-diagnostic system is.Propose a new pattern gasoline engine failure self-diagnostic system, that directly carries on cylinder pressure examines. The pollution is decreased and the accuracy of measure is increased.By Appling failure tree theory, qualitative and quantitative analysis have been carried on to the reason that arouses the petrol automobile inflammation failure. Moreover establish the petrol automobile inflammation failure tree pattern.Study the automobile inflammation failure examination rule. Propose one kind of new failure examination means. Automobile work condition parameter and failure parameter selection means were fixed.Different failure signal detection and the treatment of signal electronic circuits is come out in the design. Complete different failures electron imitation .The imitation results coincide with theory essentially.Complete the calculating machine system design .Give out software design thinking and means.Systematically introduce different probable jam and the anti-jamming step. Probe into means that make dependable work of the failure self-diagnostic system.