DRIVING METHOD FOR FUEL METERING SYSTEM OF DIRECT INJECTION INTERNAL COMBUSTION ENGINE, FUEL METERING SYSTEM FOR DIRECT INJECTION INTERNAL COMBUSTION ENGINE, DIRECT INJECTION INTERNAL COMBUSTION ENGINE, CONTROL DEVICE FOR DIRECT INJECTION INTERNAL COMBUSTION ENGINE AND ADJUSTING ELEMENT OF CONTROL DEVICE FOR DIRECT INJECTION INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To improve a diagnostic function of fuel metering system and make it possible to diagnose a defect of a high pressure pump as requested.;SOLUTION: As for each high pressure pump a quantity indicating a pressurized characteristic curve of each high pressure pump is monitored and used for a diagnosis of a defect of the high pressure pump. When a difference in quantity monitored by the high pressure pump exceeds at least a specified limit value, the defect of the high pressure pump is concluded. The difference can be related to a quantity monitored immediately before or preceding quantity.;COPYRIGHT: (C)2002,JPO