Patent ID: 7133761
Filing Date: 2006-11-07
Classification: F02B,F02D,F02P,Y02T

Abstract:
1. A method of controlling combustion of a fuel within a combustion chamber of internal combustion engine, said method comprising, a. during a cycle of said engine: b. delivering an accelerometer data set to a controller, said accelerometer data set collected during at least two cycles of said engine, c. processing said accelerometer data set to generate a processed data set indicative of a heat release rate over said at least two cycles, d. estimating from said processed data set, an SOC error using a pre-determined target start of combustion for said fuel, e. if the magnitude of said SOC error is greater than 0, adjusting a start of combustion lever for at least one subsequent cycle of said engine to drive a corrected start of combustion during said at least one subsequent cycle towards said pre-determined target start of combustion.