Patent ID: 8437945
Filing Date: 2013-05-07
Classification: F02D,Y02T

Abstract:
1. Method for adjusting fuel injection timing in an internal combustion engine including a cylinder and configured to operate multiple fuel injections in the cylinder per combustion cycle, the method comprising: monitoring in-cylinder pressure through a first combustion cycle; determining actual combustion phasing metrics based upon the in-cylinder pressure; monitoring a baseline fuel injection timing comprising a first injection timing and a second injection timing; providing expected combustion phasing metrics based upon the baseline fuel injection timing; comparing the actual combustion phasing metrics to the expected combustion phasing metrics; and adjusting the baseline fuel injection timing in a second combustion cycle based upon the comparing, wherein one of the first and second injection timings of the base fuel injection timing comprises a main injection timing coincident with a combustion event and defining a power output in the cylinder.