Patent ID: 6536412
Filing Date: 2003-03-25
Classification: F02B,F02D,F02M,Y02T

Abstract:
A control device for an internal combustion engine comprising fuel injection valves which are disposed at an air intake port for the internal combustion engine and inject fuel from the air intake port toward respective cylinders for the internal combustion engine; and an air flow velocity accelerating means which accelerates air flow velocity in the air intake port, wherein the fuel injection time from the fuel injection valves is controlled in synchronism with and during an air intake stroke for the internal combustion engine as well as respective injection ports of the fuel injection valves are positioned at or near an accelerated air flow portion formed by the air flow velocity accelerating means, further comprising a means for performing an arithmetic operation of a revolution fluctuation index representing combustion stability of the internal combustion engine, and wherein the fuel injection time of the fuel injection valves is corrected based on the arithmetic operation result obtained by the revolution fluctuation index arithmetic operation means.