| 摘要 |
PROBLEM TO BE SOLVED: To provide an abnormality determination device for a fuel feeder capable of properly determining the abnormality of the fuel feeder affecting a combustion timing. SOLUTION: This abnormality determination device 1 for the fuel feeder 10 feeding a fuel into the cylinders 3a of an internal combustion engine 3 comprises an actual combustion timing calculation means 2 calculating, as an actual combustion timing TICOMACT, a timing at which the combustion of the fuel fed from the fuel feeder 10 into the cylinders 3a actually occurs according to a rotating state parameterωdetected, an estimated combustion timing calculation means 2 calculating, as an estimated combustion timing TICOMES, a timing at which the combustion of the fuel fed from the fuel feeder 10 into the cylinders 3a is expected to occur, and an abnormality determination means 2 determining the abnormality of the fuel feeder 10 on the basis of the result of comparison between the calculated actual combustion timing TICOMACT and the estimated combustion timing TICOMES. COPYRIGHT: (C)2007,JPO&INPIT
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