Patent ID: 8606486
Filing Date: 2013-12-10
Classification: F02D,G01F,G01N

Abstract:
1. A control system for an engine, comprising: a density determination module that determines a density of air in an induction system of the engine based on a temperature of the air, a pressure of the air, and a relative humidity of the air; a mass air flow (MAF) determination module that, based on the density of the air, a velocity of the air, and a cross-sectional area of the induction system, determines a MAF through the induction system, wherein the MAF determination module determines the MAF through the induction system based on at least one of (i) a plurality of parameters of an element in a MAF sensor, (ii) a convection heat transfer coefficient, and (iii) a difference between a temperature of the element and an air temperature; and a component control module that controls at least one component of the engine based on the determined MAF, wherein the MAF determination module determines the MAF through the induction system based on a product of (i) a sum of parameters, (ii) a product of ratios, and (iii) the difference between the temperature of the element and the air temperature.