Cummins Inc.
Diagnostic system and method for detecting internal combustion engine faults using exhaust pressure readings

Abstract:

A diagnostic system and method that (a) that uses models indicative of both successful firing and skips to determine if cylinders of a skip fire controlled internal combustion engine have successfully fired or successfully skipped and (b) uses filtered exhaust gas pressure readings for detecting faults associated with EGR systems and/or turbocharger systems.