Misfiring detecting apparatus for an internal combustion engine

Details Misfiring detecting apparatus for an internal combustion engine Misfiring detecting apparatus for an internal combustion engine

1993-02-08

1994-10-25

Noland, Thomas P.

Measuring and testing

Vehicle chassis

Steering

123436, 123492, 36443108, G01M 1500, F02M 5100, F02P 5145

Patent

active

053577906

ABSTRACT:
A misfiring detecting apparatus for an internal combustion engine avoids misidentification of misfiring in the engine in certain operating conditions thereof, thus providing for improved misfiring determination. Angular velocities of a crankshaft of the engine are detected at two crank positions both after top dead center of the engine or respectively before and after thereof. The occurrence of misfiring in the engine is determined on the basis of a deviation between the angular velocities thus detected. Misfiring determination is disabled if the rotational speed of the engine is greater than a predetermined value, or if an engine load is less than a predetermined value, or if the engine is in an engine starting period.

REFERENCES:
patent: 4351281 (1982-09-01), Geiger et al.
patent: 4428343 (1984-01-01), Schweikert et al.
patent: 4458647 (1984-07-01), Kruger
patent: 4492195 (1985-01-01), Takahashi et al.
patent: 4751650 (1988-06-01), Wazaki et al.
patent: 4873961 (1989-10-01), Tanaka
patent: 4915078 (1990-04-01), Sonoda et al.
patent: 4930479 (1990-06-01), Osawa et al.
patent: 5035223 (1991-07-01), Watanabe
patent: 5183021 (1993-02-01), Suga et al.
patent: 5237504 (1993-08-01), Holmes et al.
patent: 5237862 (1993-08-01), Mangrulkar et al.
patent: 5263453 (1993-11-01), Wakahara et al.
patent: 5309756 (1994-05-01), Osawa et al.
European Search Report, Feb. 22, 1993.

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