首页> 外国专利> 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

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

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.
机译:本发明主要涉及一种用于估计在发动机循环期间在具有至少一个可变升程气门的内燃机(1)的气缸(2)的燃烧室(5)内吸入的新鲜空气的质量的方法。该方法的特征在于,该方法包括:-估计进气分配器中的进气压力的步骤;-估计填充梯度的步骤;-估计在所述燃烧室(5)内吸入的所述新鲜空气的质量的步骤。基于所述进气压力和所述填充梯度之间的乘积,通过取决于气门升程幅度的加权因子来校正所述填充梯度,以及-基于所述先前控制所述内燃机(1)的步骤确定的空气质量。

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