Patent ID: 7840334

Claim:
An engine control system for an internal combustion engine with a fuel injector, comprising: a combustion fuel quantity determining means for determining a combustion fuel quantity in a combustion cycle at cold engine starting; a residual fuel quantity computing means for computing a residual fuel quantity in the combustion cycle based on a difference between an injection fuel quantity of the fuel injector and the combustion fuel quantity; and means for calculating or correcting an injection fuel quantity for the next combustion cycle and subsequent times based on the residual fuel quantity; wherein the combustion fuel quantity determining means determines the combustion fuel quantity in a first combustion cycle; wherein the residual fuel quantity computing means computes the residual fuel in the first cycle based on a difference between the injection fuel quantity and the combustion fuel quantity in the first cycle; and the engine control system further comprises an injection fuel quantity computing means for calculating or correcting an injection fuel for the second cycle and subsequent times based on the residual fuel quantity in the first combustion cycle.