Misfire detection device for an internal combustion engine

Details Misfire detection device for an internal combustion engine Misfire detection device for an internal combustion engine

1991-11-27

1993-03-09

Raevis, Robert

Measuring and testing

Vehicle chassis

Steering

G01M 1500

Patent

active

051917882

ABSTRACT:
A misfire detection device for an internal combustion engine determines the time length tx from each ignition timing, as determined by the ignition signal Se, to a predetermined angle of the crank shaft after the ignition timing as determined by the crank angle pulse signal Sd. When the difference between the current and the preceding time lengths thus determined exceeds a reference level, an occurrence of misfire is detected. Alternatively, when the difference .DELTA..omega.d between the instantaneous angular velocities immediately after the ignition timing and a predetermined angle thereafter as determined on the basis of the crank angle pulse signal Sd is less than a predetermined reference level, an occurrence of misfire is detected.

REFERENCES:
patent: 4414840 (1983-11-01), Yamaguchi et al.
patent: 4472779 (1984-09-01), Marino et al.
patent: 4886029 (1989-12-01), Lill et al.
patent: 4932379 (1990-06-01), Tang et al.
patent: 4979481 (1990-12-01), Shimomura et al.
patent: 5028823 (1991-07-01), Watanabe
patent: 5044195 (1991-09-01), James et al.
patent: 5127262 (1992-07-01), Demizu et al.

Affiliated with

Also associated with

Rating

Misfire detection device for an internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Misfire detection device for an internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Misfire detection device for an internal combustion engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-204355