Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1993-02-25
1994-08-16
Nelli, Raymond A.
Internal-combustion engines
Charge forming device
Fuel injection system
123480, 123684, F02M 5100
Patent
active
053377192
ABSTRACT:
An engine control system to calculate the intake air quantity comprises engine revolution speed detecting means for producing an output signal of engine revolution data, intake air temperature detecting means for producing an output signal of intake air temperature data of the intake manifold, cylinder operation condition determining means for producing an output signal of the cylinder operating condition data for each engine cylinder, intake air pressure detecting means for producing an output signal of air pressure data of the intake manifold, intake air ratio compensation value calculating means for calculating, on the basis of the cylinder operation data of each cylinder an intake air ratio compensation value derived from the air pressure data of air in the intake manifold and the engine revolution speed data of the engine, and intake air quantity calculating means for calculating an intake air quantity on the basis of the intake air ratio compensation value. An engine control method to calculate the intake air quantity comprises the steps of detecting engine revolution data and intake air temperature data of the intake manifold, determining cylinder operation data of the engine, detecting intake air pressure of air in the intake manifold, calculating on the basis of the cylinder operation data an intake air ratio compensation value derived from the air pressure data of the manifold and the engine revolution speed data, and calculating an intake air quantity of air to be introduced into each engine cylinder on the basis of the intake air ratio compensation value.
REFERENCES:
patent: 5159914 (1992-11-01), Follmer et al.
patent: 5190020 (1993-03-01), Cho
patent: 5191531 (1993-03-01), Kurosu et al.
patent: 5211150 (1993-05-01), Anzai
patent: 5226393 (1993-07-01), Nagano et al.
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
Nelli Raymond A.
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