Method and apparatus for controlling the air-fuel ratio in an in

Details Method and apparatus for controlling the air-fuel ratio in an in Method and apparatus for controlling the air-fuel ratio in an in

1982-08-05

1984-08-28

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Fuel injection system

F02M 5100

Patent

active

044677707

ABSTRACT:
In an internal combustion engine, a basic fuel injection pulse width is calculated by parameters such as the engine speed and the intake-air quantity. The basic pulse width is compensated for by an integration compensation factor and a learning correction factor so as to obtain a desired air-fuel ratio. A predetermined number of integration compensation factors are sampled at every air-fuel ratio transition, and the mean value thereof is calculated. The learning compensation factor is corrected in accordance with the mean value of the predetermined number of integration compensation factors.

REFERENCES:
patent: 4130095 (1978-12-01), Bowler et al.
patent: 4224910 (1980-09-01), O'Brien
patent: 4235204 (1980-11-01), Rice

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