Method of and system for computing fuel injection amount for int

Details Method of and system for computing fuel injection amount for int Method of and system for computing fuel injection amount for int

1993-04-28

1995-06-27

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Fuel injection system

123488, F02M 5100, F02D 4118, F02D 4134

Patent

active

054270723

ABSTRACT:
A fuel injection amount computing unit for an internal combustion engine is disclosed, wherein when an intake air flow Qho as calculated from a throttle valve opening degree and an engine speed is greater than a predetermined value, and when a variation .DELTA.Tp.sub.REAL of a smoothed basic fuel injection amount Tp.sub.REAL is negative and a final basic fuel injection amount AvTp including phase adjustment and prefetched correction is greater than a trimmed basic fuel injection amount TrTp (=Tp.sub.REAL .times.Ktrm), a surging smoothing index ND is switched from a value (0; smoothing prohibited) corresponding to the transient state to a value (3; smoothing maximized) corresponding to the fully open state.

REFERENCES:
patent: 4858136 (1989-08-01), Tanaka et al.
patent: 4922877 (1990-05-01), Nagaishi
patent: 4949694 (1990-08-01), Nagaishi et al.
patent: 5031597 (1991-07-01), Monden

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