Method for identifying misfire in internal combustion engines

Details Method for identifying misfire in internal combustion engines Method for identifying misfire in internal combustion engines

1993-08-16

1995-01-03

Williams, Hezron E.

Measuring and testing

Test stand

For engine

123436, G01M 1500

Patent

active

053775368

ABSTRACT:
A method for identifying misfiring is employed in an internal combustion engine with multiple cylinders. The identification is effected by measuring segment times required for the crankshaft to rotate about given angular segments during the cylinder work cycle. Any fluctuations are then calculated and compared with threshold values. During thrust cutoff, i.e. when no fuel is supplied to the cylinders, errors in the segment time measurement are identified and corrected, and in dependence of the number of the completed cycles for calculating the correction factors, the threshold values are modified.

REFERENCES:
patent: 4522179 (1985-06-01), Nishimura et al.
patent: 5041980 (1991-08-01), Maddock et al.
patent: 5113830 (1992-05-01), Haines
patent: 5117681 (1992-06-01), Dodsall et al.
patent: 5226390 (1993-07-01), Nakagawa
patent: 5237504 (1993-08-01), Holmes et al.
patent: 5237862 (1993-08-01), Mangrulkar et al.
patent: 5255560 (1993-10-01), Klenk et al.
patent: 5263453 (1993-11-01), Wakahara et al.
patent: 5265575 (1993-11-01), Norota

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