Patent ID: 6047683
Filing Date: 2000-04-11
Classification: F02D,Y02T

Abstract:
A process for controlling a fuel injection quantity for an internal-combustion engine in a vehicle using an electronic control unit in which an actual crankshaft angle is detected, the process comprising the acts of:determining a required injection starting angle of a crankshaft or a required injection starting point in time for a particular cylinder as a function of the actual crankshaft angle, a defined fuel injection time and a defined crankshaft end angle;triggering an injection valve, assigned to the particular cylinder, for the defined fuel injection time until an actual crankshaft injection end angle to carry out fuel injection in a time-controlled manner; andwhile maintaining the defined crankshaft injection end angle, defining in the control unit a short pulse as an additional injection time for the particular cylinder if the actual crankshaft injection end angle is before the defined crankshaft injection end angle.