Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1995-04-19
1996-09-17
Argenbright, Tony M.
Internal-combustion engines
Charge forming device
Fuel injection system
731182, 123488, F02D 4118
Patent
active
055558704
ABSTRACT:
A method and an apparatus for sensing an air flow into a cylinder of an internal combustion engine are arranged to determine a number of revolutions of the engine, determine a pressure of an intake pipe of the engine, and calculate an air flow Qc into a cylinder of the engine, based on the number of revolutions and the pressure of the intake pipe by the linear expression of Qc=.alpha.P+.beta., in which .alpha. is a coefficient indicating a gradient of a linear expression and defined according to the number of revolutions, .beta. is a coefficient indicating an offset value and defined according to the number of revolutions, and P is a pressure of the intake pipe. The method and the apparatus for controlling fuel of the internal combustion engine operate to generate a fuel flow signal according to the air flow into the cylinder determined by the above method and feed fuel to the internal combustion engine at a flow rate corresponding to a fuel flow signal.
REFERENCES:
patent: 4987888 (1991-01-01), Funabashi et al.
patent: 4995258 (1991-02-01), Frank
patent: 4999781 (1991-03-01), Holl et al.
Argenbright Tony M.
Hitachi , Ltd.
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