Fuel control apparatus for engines

Details Fuel control apparatus for engines Fuel control apparatus for engines

1989-06-05

1990-06-05

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Fuel injection system

123478, F02D 4110, F02D 4130

Patent

active

049304828

ABSTRACT:
An engine control apparatus for controlling fuel injection on the basis of a pressure value relating to the intake pipe pressure of an engine. All variations in the engine load are monitored and a detection signal is output when any variation is equal to or larger than a predetermined value. A timer is operable for a predetermined time in response to such detection signals. Fuel injection is controlled in response to the pressure value during the period when the timer is operative and in response to a value obtained by performing low-pass filter processing of the pressure value during the period when the timer is inoperative.

REFERENCES:
patent: 4010717 (1977-03-01), Taplin
patent: 4411235 (1983-10-01), Shinoda et al.
patent: 4412520 (1983-11-01), Mitsuyasu et al.
patent: 4413602 (1983-11-01), Inoue et al.
patent: 4651695 (1987-03-01), Ohtaki eta l.
Shinji Ozawa "Digital Signal Processing" (1979. 7. 10) Jikkyo Shuppan Co., Ltd. pp. 103-104.

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