Control device of an internal combustion engine

Details Control device of an internal combustion engine Control device of an internal combustion engine

1987-04-24

1988-03-15

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123417, 123423, 123493, F02P 500

Patent

active

047305878

ABSTRACT:
An engine having a fuel injector for normally feeding a lean air-fuel mixture into the engine cylinders. Ignition timing is determined so that it is suitable for the lean air-fuel mixture. The gear changing operation of the transmission of the engine is detected from the change in the engine speed and the change in the absolute pressure in the intake passage. When the gear changing operation is carried out, a rich air-fuel mixture is fed into the engine cylinders, and the ignition timing is retarded.

REFERENCES:
patent: 3547089 (1970-12-01), Pierlot
patent: 3596644 (1971-08-01), Hutchins
patent: 4191145 (1980-03-01), Fowler
patent: 4257363 (1981-03-01), Zeller
patent: 4479186 (1984-10-01), Takao et al.
patent: 4480621 (1984-11-01), Hoppel et al.
patent: 4485775 (1984-12-01), Kanada et al.
patent: 4503822 (1985-03-01), Kobayashi et al.
patent: 4527521 (1985-07-01), Hasegawa et al.
patent: 4532902 (1985-08-01), Mizuno et al.

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