FUEL SYSTEM DIAGNOSTICS BY ANALYZING ENGINE CYLINDER PRESSURE SIGNAL AND CRANKSHAFT SPEED SIGNAL
摘要
A method for distinguishing between combustion issues and sensor faults within an engine includes monitoring pressure sensor data from a cylinder within the engine, monitoring engine data describing combustion health from a source other than a pressure sensor, analyzing the pressure sensor data to diagnose an anomalous combustion event, comparing the anomalous combustion event to analysis of the engine data, and indicating a pressure sensor fault warning if the comparison diagnoses a pressure sensor fault.
申请公布号
WO2009155132(A2)
申请公布日期
2009.12.23
申请号
WO2009US46050
申请日期
2009.06.03
申请人
GM GLOBAL TECHNOLOGY OPERATIONS, INC.
发明人
WANG, YUE-YUN;HASKARA, IBRAHIM;KWEON, CHOL-BUM, M.;MATEKUNAS, FREDERIC, ANTON;BATTISTON, PAUL, ANTHONY