Patent ID: 7249454
Filing Date: 2007-07-31
Classification: F01N,F02B,F02D,F02M,Y02T

Abstract:
1. A fuel injection control apparatus for an internal combustion engine, wherein the engine has an in-cylinder injection valve for injecting fuel into a cylinder of the engine, an intake passage injection valve for injecting fuel into an intake passage connected to the cylinder, and an exhaust passage connected to the cylinder, the apparatus comprising: a temperature determining section that determines whether a component located in the exhaust passage is in an overtemperature condition; and an injection control section that controls the in-cylinder injection valve and the intake passage injection valve, wherein, when the component is determined to be in the overtemperature state, the injection control section controls the injection valves to increase the amount of fuel supplied to the cylinder compared to a case where the component is determined not to be in the overtemperature state, thereby preventing the component from being overheated, and wherein the injection control section sets a mode for causing the injection valves to increase the amount of supplied fuel according to an operational state of the engine.