Patent ID: 7272486
Filing Date: 2007-09-18
Classification: F02B,F02D,F02M,Y02T

Abstract:
1. A method of controlling an internal combustion engine ( 1 ) with a common rail fuel injection system including individual fuel storage chambers ( 8 ) for supplying fuel to the individual cylinders of the internal combustion engine ( 1 ), said method comprising the steps of: determining and storing a fuel pressure (pE(i), i=1, 2 . . . n) present in each of the individual fuel storage chambers ( 8 ) during a measuring interval (MESS) (crankshaft angle (Phi)), determining any significant change in the fuel pressure (pE(i)) as an injection begin (SB=f(pE(i)Phi)) or as injection end (SE=f(pE(i)), Phi)), calculating a virtual injection begin by way of a mathematical function (FKT) depending on the injection end (SE) and using the virtual injection begin (SBv) as actual injection begin (SB) for controlling the internal combustion engine (SB=SB V ).