Patent ID: 7703440
Filing Date: 2010-04-27
Classification: F02D,Y02T

Abstract:
1. A control system for an internal combustion engine having fuel injection means for injecting fuel into a combustion chamber of said engine, the control system comprising: compression end temperature estimating means for estimating a compression end temperature in the combustion chamber; target compression end temperature setting means for setting a target compression end temperature according to an operating condition of said engine; fuel injection control means for performing a main injection and a plurality of pilot injections, wherein at least one pilot injection is performed before the main injection by said fuel injection means; correction means for calculating a correction amount according to a temperature difference between the estimated compression end temperature and the target compression end temperature, and wherein said fuel injection control means controls a fuel injection amount in a first-performed pilot injection of the plurality of pilot injections, based on the correction amount, such that the estimated compression end temperature coincides with the target compression end temperature.