Measuring and testing – Simulating operating condition – Marine
Patent
1996-05-07
1997-08-05
Dombroske, George M.
Measuring and testing
Simulating operating condition
Marine
731173, 123435, 36443101, G01M 1500, F02M 5100
Patent
active
056545010
ABSTRACT:
An electronic engine controller (EEC) for an internal combustion engine develops an estimate of air charge by receiving a signal from an air meter positioned in an intake manifold of the engine. The signal is indicative of mass flow rate of air past the meter. In one embodiment EEC develops an air charge estimate by developing a first pressure value which is indicative of the pressure in the intake manifold. A pressure correction term is then generated and added to the first pressure value to generate an improved estimate, which takes the dynamic response of the air meter into account, of pressure in the intake manifold. The air charge estimate is then developed from the pressure estimate. In another embodiment, a first mass value, which is indicative of the mass of air in the intake manifold is developed. A mass correction term is then generated and added to the first mass value to generate the improved estimate.
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Cook Jeffrey Arthur
Grizzle Jessy W.
Dombroske George M.
Ford Motor Company
Lippa Allen J.
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