Method of detecting combustion misfires

Details Method of detecting combustion misfires Method of detecting combustion misfires

1996-08-29

1997-11-25

Dombroske, George M.

Measuring and testing

Vehicle chassis

Steering

123419, 123436, 36443107, G01M 1500

Patent

active

056914695

ABSTRACT:
The invention is directed to a method for detecting combustion misfires in an internal combustion engine on the basis of a first signal wherein the nonuniformity of the rotational movement of the crankshaft of the engine is imaged. The method includes the steps of: generating a second signal which is periodic and has a period duration corresponding to one of the following: the cycle duration of a complete work cycle of the engine or the cycle duration divided by a whole number, and the second signal having a fixed phase relationship to the rotational movement of said crankshaft; providing an ancillary signal based on the first signal; modulating the second signal with the ancillary signal and filtering the second signal to form a third signal; and, utilizing the third signal for detecting the presence of misfires and for identifying the cylinder affected by the misfires.

REFERENCES:
patent: 4424709 (1984-01-01), Meier, Jr. et al.
patent: 5200899 (1993-04-01), Ribbens et al.
patent: 5239473 (1993-08-01), Ribbens et al.
patent: 5263365 (1993-11-01), Muller et al.
patent: 5303158 (1994-04-01), Kuroda
patent: 5379634 (1995-01-01), Kuroda et al.
patent: 5387253 (1995-02-01), Remboski, Jr. et al.
patent: 5394330 (1995-02-01), Horner
patent: 5487008 (1996-01-01), Ribbens et al.

Affiliated with

Also associated with

Rating

Method of detecting combustion misfires does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of detecting combustion misfires, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of detecting combustion misfires will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2108342