Patent ID: 8116963
Filing Date: 2012-02-14
Classification: F02D

Abstract:
1. A method for determining an interpolated injector pin profile for a fuel injector at an engine operating point in an engine operating plane, the engine operating plane comprising operating points having speed values and torque values, the method comprising: obtaining a first injector pin profile associated with a first operating point and comprising a first set of profile points comprising displacement values and time values; obtaining a second injector pin profile associated with a second operating point and comprising a second set of profile points, the second injector pin profile comprising at least as many profile points as the first injector pin profile; connecting a profile point of the second injector pin profile with a profile point of the first injector pin profile to form connected injector pin profiles; and using the connected injector profiles to determine an interpolated injector pin profile at an operating point between the first operating point and the second operating point.