Patent ID: 7017551
Filing Date: 2006-03-28
Classification: F01L,F02D,Y02T

Abstract:
1. An intake control apparatus for an internal combustion engine, comprising: an electronically controlled throttle; a variable valve mechanism varying an opening characteristic of an intake valve; a first computing section that computes a target intake pressure; a second computing section that computes a target intake air amount; a first control section that controls said electronically controlled throttle, to attain said target intake pressure; a second control section that controls said variable valve mechanism, to attain said target intake air amount; a detector detecting an intake pressure of said internal combustion engine; a correcting section that corrects the control by said second control section based on the intake pressure detected by said detector; a diagnosis section that judges whether or not the intake pressure detected by said detector is abnormal; and a limiting section that limits the correction by said correcting section when it is judged that the intake pressure detected by said detector is abnormal.