| 摘要 |
A method for detecting combustion failure in an internal combustion engine, by calculating an index ln (t) representing engine irregularities at a moment (t) during certain combustion phases in one cylinder; calculating an observation function G (t), which is a function between index ln (t) and an estimated reference value In +/-i (t) at a different moment during engine operation comparing G (t) to a threshold (S), which is a function of engine load (C) and/or rpm (N); and diagnosing a combustion failure when G (t) exceeds (S) or: G (t)=In (t)-ln (t), wherein In (t) is a function of ln (t) and In +/-i (t) represents the index ln (t) after weighting of the values of said index outside an acceptable predefined differential.
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