Method of controlling the air/fuel ratio for an internal combust

Details Method of controlling the air/fuel ratio for an internal combust Method of controlling the air/fuel ratio for an internal combust

1988-03-03

1989-07-04

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Fuel injection system

123491, F02D 4114, F02D 4106

Patent

active

048440418

ABSTRACT:
A method of controlling the air/fuel ratio for an internal combustion engine set a base value of air/fuel ratio control in accordance with detected engine parameters, and the base value is corrected by a base correction value in order to compensate for the error of the base value. The speed of change in the correction value in the learning control operation is increased when the engine speed is low, or for a predetermined time period after a hot starting of the engine.

REFERENCES:
patent: 4130095 (1978-12-01), Bawler et al.
patent: 4235204 (1980-11-01), Rice
patent: 4306529 (1981-12-01), Chiesa et al.
patent: 4475517 (1984-10-01), Kobayashi et al.
patent: 4715344 (1987-12-01), Tomisawa
patent: 4796589 (1989-01-01), Fujimoto et al.

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