Air/fuel ratio control system

Details Air/fuel ratio control system Air/fuel ratio control system

1985-04-23

1986-06-03

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123440, 123486, F02D 4300

Patent

active

045923256

ABSTRACT:
An air/fuel ratio control system uses an oxygen sensor with which the air/fuel ratio of rich fuel mixture is measured. In this system, a feedforward control of the air/fuel ratio is executed even under operating condition when the engine operates on the rich fuel mixture, and a feedforward control of the air/fuel ratio is executed to enrich the fuel mixture at acceleration in accordance with a control data table which is subject to change after learning during the engine operation.

REFERENCES:
patent: 4130095 (1978-12-01), Bawlor et al.
patent: 4232643 (1980-11-01), Leshnor
patent: 4345562 (1982-08-01), Drews et al.
patent: 4491921 (1985-01-01), Sugiyama et al.
patent: 4508075 (1985-04-01), Takao et al.
patent: 4517948 (1985-05-01), Kaji et al.
patent: 4542729 (1985-09-01), Yamato et al.

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