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METHOD OF ESTIMATING A FRESH AIR MASS ADMITTED INSIDE A COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE WITH VARIABLE VALVE LIFTING
METHOD OF ESTIMATING A FRESH AIR MASS ADMITTED INSIDE A COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE WITH VARIABLE VALVE LIFTING
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机译:可变气门升程估算内部燃烧发动机燃烧室内新鲜空气质量的方法
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摘要
The invention primarily relates to a method for estimating the mass of fresh air drawn inside a combustion chamber (5) of a cylinder (2) of an internal combustion engine (1) having at least one variable-lift valve during an engine cycle. The method is characterized in that it comprises: - a step of estimating an intake pressure in an intake air distributor, - a step of estimating a filling gradient, - a step of estimating said mass of fresh air drawn inside said combustion chamber (5) on the basis of a product between said intake pressure and said filling gradient, said filling gradient being corrected by a weighting factor dependent on a valve lift amplitude, and - a step of controlling said internal combustion engine (1) on the basis of said previously determined mass of air.
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