Patent ID: 6079387
Filing Date: 2000-06-27
Classification: F02B,F02D,Y02T

Abstract:
An air intake control system for an engine equipped with an exhaust gas recirculation system for performing control of exhaust gas regulating means in which an amount of exhaust gas admitted to the engine is regulated to bring an amount of air charge to the engine dictated by an air flow rate to a target amount of air charge determined according to engine operating conditions, said air intake control system comprising:variable air intake means disposed in an intake air passage and driven to variably control a practical amount of air charge to the engine; andcontrol means for estimating an amount of air charge to the engine on the basis of a driven amount of said variable air intake means on a condition that said control of exhaust gas regulating means is assumed to be interrupted, and performing control of said variable air intake means to bring said practical amount of air charge to said target amount of air charge.