Patent ID: 9175583
Filing Date: 2015-11-03
Classification: F01L,F02D,F02M,F02N,Y02T

Abstract:
1. A control device for an internal combustion engine, wherein the engine includes a variable valve device, which includes: a variable mechanism having a first rotating body, which rotates in synchronization with one of a crankshaft and a camshaft, and a second rotating body, which rotates in synchronization with the other, the variable mechanism rotating the rotating bodies relative to each other to change a valve timing of a valve driven by the camshaft to open and close, and a fixation mechanism capable of fixing the valve timing at a specific timing that is between a most retarded timing and a most advanced timing by limiting the relative rotation between the rotating bodies, wherein a period elapsed from when cranking accompanied by fuel injection is started is defined as a post-start period, the control device is configured to execute start-up failure processing, which addresses a state where the valve timing is at a timing different from the specific timing, when the post-start period is equal to or longer than a first predetermined period α and an engine rotation speed is equal to or slower than a predetermined value, that is, when a start-up failure is caused in which the internal combustion engine does not shift to a complete combustion state, and the start-up failure processing reduces a fuel injection amount after when it is determined that a start-up failure has been caused to be smaller than the fuel injection amount of when it is determined that a start-up failure has been caused.