Fuel scheduling as a function of misfire rate

Details Fuel scheduling as a function of misfire rate Fuel scheduling as a function of misfire rate

1996-09-30

1998-04-07

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Including means responsive to instantaneous change in engine...

F02D 4114

Patent

active

057352461

ABSTRACT:
A system is provided for controlling the ratio of fuel to air in an internal combustion engine to protect the catalyst substrate of a catalytic convertor from thermal damage. The system comprises detecting a misfire rate and adjusting the amount of fuel within the system accordingly. More particularly, the detected misfire rate is compared to at least one predetermined misfire rate within the engine control unit. If the detected misfire rate is not equal to the predetermined rate, the ratio of fuel to air is changed a calibrated amount. Accordingly, when the misfire rate exceeds a predetermined rate, additional fuel is added to the system. By increasing the ratio of fuel to air, the oxidation reaction is reduced and the exothermic activity within the catalytic converter is lowered.

REFERENCES:
patent: 4366793 (1983-01-01), Coles
patent: 5021960 (1991-06-01), Manaka et al.
patent: 5237504 (1993-08-01), Holmes et al.
patent: 5345911 (1994-09-01), Kadowaki et al.

Affiliated with

Also associated with

Rating

Fuel scheduling as a function of misfire rate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fuel scheduling as a function of misfire rate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel scheduling as a function of misfire rate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-5067