Fuel-injection control apparatus for an engine

Details Fuel-injection control apparatus for an engine Fuel-injection control apparatus for an engine

1995-04-17

1996-11-26

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

123686, F02D 4114

Patent

active

055774865

ABSTRACT:
This fuel injection control apparatus consists of a calculating device for calculating an air-fuel ratio correction factor FAF, a learning device for learning an air-fuel ratio learning factor KG in accordance with the deviation of FAF from the reference value, and a controller for controlling the amount of injected fuel in accordance with FAF and KG. When the start enrichment FASE and the warm-up enrichment FWL are added, KG is learned in accordance with the corrected deviation which is the deviation of FAF corrected by the correction factor f(FASE+FWL) which is concerned with FASE and FWL. The learning accuracy is improved because KG is learned at each region of FWL which is divided into plural regions in accordance with the engine driving conditions.

REFERENCES:
patent: 5053968 (1991-10-01), Uchinami
patent: 5099817 (1992-03-01), Nakaniwa

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