Fuel injection control apparatus for internal combustion engine

Details Fuel injection control apparatus for internal combustion engine Fuel injection control apparatus for internal combustion engine

1998-01-27

2000-01-25

Solis, Erick R.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

123682, 123683, 123492, F02D 4130

Patent

active

060167947

ABSTRACT:
A fuel injection control apparatus for an internal combustion engine includes an injector control apparatus 120B for controlling a fuel injection amount toward a target fuel injection amount Fm. The injector control apparatus 120B includes an expected engine revolution number calculating means 9 for calculating an expected engine revolution number Nf for a predetermined interval based on the engine revolution number Ne, expected throttle opening degree calculating means 10 for calculating an expected throttle opening degree .theta.f for the predetermined interval based on a throttle opening degree .theta., expected drawn air amount calculating means 11 for calculating an expected drawn air amount Qf for the predetermined interval based on the expected engine revolution number and the expected throttle opening degree, and target fuel injection amount calculating means 12 for calculating a target fuel injection amount Fm. With the above arrangement, a deviation in air-fuel ratio is suppressed and an exhaust gas is improved.

REFERENCES:
patent: 4886030 (1989-12-01), Oba et al.
patent: 4951209 (1990-08-01), Nagaishi et al.
patent: 4971011 (1990-11-01), Nanyoshi et al.
patent: 4987888 (1991-01-01), Funabashi et al.
patent: 5025380 (1991-06-01), Wataya et al.
patent: 5195491 (1993-03-01), Kuroda

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