Air-fuel control apparatus for an internal combustion engine

Details Air-fuel control apparatus for an internal combustion engine Air-fuel control apparatus for an internal combustion engine

1990-04-30

1991-01-08

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Fuel injection system

123489, F02D 4114

Patent

active

049827146

ABSTRACT:
In an air-fuel ratio control apparatus for an internal combustion engine, an air-fuel ratio sensor detects an air-fuel ratio in response to specified components contained in exhaust gas and an electronic control section receives a signal from the air-fuel ratio sensor to calculate an amount of fuel to be injected from a fuel supplying device so that the air-fuel ratio of a gas mixture to be supplied to the engine approaches a target air-fuel ratio. A parameter of a load for the engine and an engine revolution number are each detected, and the electronic control section calculates a correction coefficient on the basis of the parameter of the load and the engine revolution number, whereby the output of the air-fuel ratio sensor is corrected.

REFERENCES:
patent: 3867916 (1975-02-01), Bigalke
patent: 3894976 (1976-10-01), Nagai
patent: 4150562 (1979-04-01), Nielsen
patent: 4534330 (1985-08-01), Osuga et al.
patent: 4546747 (1985-10-01), Kobayashi et al.
patent: 4730594 (1988-03-01), Hibino et al.
patent: 4732128 (1988-03-01), Yoshioka et al.
patent: 4882030 (1989-11-01), Suzuki et al.

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