Method of and an apparatus for controlling the quantity of fuel

Details Method of and an apparatus for controlling the quantity of fuel Method of and an apparatus for controlling the quantity of fuel

1993-12-07

1995-03-07

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Including cylinder pressure or temperature responsive means

123478, 123492, F02D 4104, F02D 4110

Patent

active

053948491

ABSTRACT:
An incremental correction coefficient K.sub.TW is set according to the temperature Tw of cooling water of an engine and is used to incrementally correct the quantity of fuel injected into the engine. The coefficient K.sub.TW is adjusted according to detected surge torque. An incremental correction coefficient KACC is used during acceleration in the engine, to incrementally correct the quantity of the fuel to be injected and a decremental correction coefficient KDEC is used during deceleration in the engine, to decrementally correct the quantity of the fuel to be injected. The coefficients KACC and KDEC are adjusted according to the degree of the adjustment done on the coefficient K.sub.TW. Not only the coefficient K.sub.TW based on the water temperature but also the coefficients KACC and KDEC based on the acceleration and deceleration are thus corrected to proper levels for the fuel.

REFERENCES:
patent: 4640251 (1987-02-01), Harada et al.
patent: 4887575 (1989-12-01), Takahashi
patent: 4928653 (1990-05-01), Ohkubo et al.
patent: 4996960 (1991-03-01), Nishiyama et al.
patent: 5027773 (1991-07-01), Shimomura et al.
patent: 5107814 (1992-04-01), Nishiyama et al.
patent: 5107815 (1992-04-01), Van Duyne
patent: 5174261 (1992-12-01), Fujii et al.

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