METHOD OF TESTING ENGINES BASED ON GRAPHIC SIGNATURES

摘要

Method for extracting useful information for testing an internal combustion engine on the basis of graphic signatures. A carrier signal containing at least one information item relating to engine operation is acquired. Next, for each engine cycle, this signal is converted into a graphic signature, turning a collection of characteristic features of the signal into the form of a graph that is simple to analyse. At least one attribute of this signature is then determined, and from this the relevant information is estimated using a predetermined relationship between the attribute and the information item. Finally, the information is used to test the engine. Application to internal combustion engine testing.