Patent ID: 9334821
Filing Date: 2016-05-10
CPC Classification: F01N,F02D,F02N,Y02T

Claim Text:
1. A fuel injection control apparatus for an engine equipped with an exhaust purification catalyst in an exhaust passage, comprising: an injection volume control unit that controls a fuel injection volume injected from a fuel injection valve; a supplied oxygen amount detection unit that detects a supplied oxygen amount supplied to the exhaust purification catalyst during a period from cessation of fuel injection by the fuel injection valve until stoppage of the engine; an activity determination unit that determines whether or not the exhaust purification catalyst is in an active state, at a time of restart of the engine; and an amount increasing correction unit that makes an amount increasing correction to the fuel injection volume injected from the fuel injection valve at the time of restart of the engine, in accordance with detection results of the supplied oxygen amount detection unit and determination results of the activity determination unit.