MISFIRE DETECTION WITH CRANKSHAFT VIBRATIONS

摘要

Methods and systems are provided for engine misfire detection. In one example, a method may include sampling crankshaft fluctuations with a first and a second sampling window, wherein the first and second windows overlapping each other; and identify misfire based on the sampled signals. The method may further comprise adjusting engine operation responsive to the misfire indication via a control unit.

主权项

1. An engine method, comprising: generating a first cylinder misfire indication based on crankshaft fluctuations sampled over a first window; and generating a second, different, cylinder misfire indication based on crankshaft fluctuations sampled over a second window, the first and second windows overlapping each other.