Method for monitoring the reporting of misfirings in an internal

Details Method for monitoring the reporting of misfirings in an internal Method for monitoring the reporting of misfirings in an internal

1993-12-14

1995-06-06

Chilcot, Jr., Richard E.

Measuring and testing

Vehicle chassis

Steering

G01L 2322

Patent

active

054211964

ABSTRACT:
A method for monitoring a report of misfires in an internal combustion engine through at least two different submethods includes forming one subgroup from at least two submethods. A weighting graph containing weighting values dependent on operating parameters of a vehicle is assigned to each submethod, and the values are a measure of reliability of a report of the submethod. A weighting value is read out of the associated weighting graph upon each report in a submethod. The weighting values of the submethods of one subgroup are added to make a reference value. The reference value is compared with a limit value, and a misfire report is confirmed if the reference value is greater than the limit value.

REFERENCES:
patent: 5088318 (1992-02-01), Osawa
patent: 5116259 (1992-05-01), Demizu et al.
patent: 5119783 (1992-06-01), Komurasaki
patent: 5127262 (1992-07-01), Demizu et al.
patent: 5197325 (1993-03-01), Tamura et al.
patent: 5239473 (1993-08-01), Ribbens et al.
Japanese Patent Abstract No. 1 210 840, published Aug. 24, 1989 (Kurokawa Kaneyoshi).

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