Engine fuel injection controller

Details Engine fuel injection controller Engine fuel injection controller

1993-09-08

1995-06-20

Yuen, Henry C.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

123698, 123520, F02M 2508, F02D 4114

Patent

active

054253497

ABSTRACT:
Fuel injection controller is provided for an engine having a purge passage for purging fuel vapor from the fuel tank into the intake passage, a purge valve which opens and closes the purge passage and a mechanism for feedback correcting a fuel injection amount based on a detected air-fuel ratio, The controller learns a feedback correction amount when the purge valve opens or closes, stores and updates a learning value according to the variation of the correction amount. When the variation of the learning value has converged to within certain region, the controller clamps the learning value, and corrects the fuel injection amount during purge based on this clamped value. Air-fuel ratio errors due to purging can therefore be rapidly reduced.

REFERENCES:
patent: 4831992 (1989-05-01), Jundt et al.
patent: 4869223 (1989-09-01), Shimomura
patent: 4977881 (1990-12-01), Abe et al.
patent: 5070847 (1991-12-01), Akiyama et al.
patent: 5072712 (1991-12-01), Steinbrenner et al.
patent: 5090388 (1992-02-01), Hamburg et al.
patent: 5245978 (1993-09-01), Orzel

Affiliated with

Also associated with

Rating

Engine fuel injection controller does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Engine fuel injection controller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engine fuel injection controller will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1838973