Internal combustion engine control

Details Internal combustion engine control Internal combustion engine control

1995-04-28

1996-06-04

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

F02M 5100

Patent

active

055223656

ABSTRACT:
Automotive internal combustion engine air/fuel ratio control accuracy improvement is provided through correction of engine cylinder volumetric efficiency to account for variation in engine intake air temperature away from volumetric efficiency calibration intake air temperature, and to account for heating of the intake air passing through engine intake air passages prior to entry to the engine cylinders. Change in air density and change in airflow dynamics occurring in engine intake air passages are accounted for in the volumetric efficiency correction so that engine control commands more accurately account for actual engine cylinder intake air mass.

REFERENCES:
patent: 4928654 (1990-05-01), Hosaka
patent: 4957088 (1990-09-01), Hosaka
patent: 4974563 (1990-12-01), Ikeda et al.
patent: 5282449 (1994-02-01), Takahashi et al.
patent: 5293553 (1994-03-01), Dudek et al.
patent: 5423208 (1995-06-01), Dudek et al.
patent: 5448978 (1995-09-01), Hasegawa et al.
08/217824 filed Mar. 25, 1994 Dudek et al.

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