Patent ID: 7703437
Filing Date: 2010-04-27
Classification: F02D

Abstract:
1. An electronic control device for controlling the internal combustion engine in a motor vehicle having an irregular running determination unit wherein a defined group of cylinders is associated with a lambda probe, the device comprising: an injection quantity correction unit, wherein an injection quantity of a cylinder to be investigated in the defined group is adjustable in the direction of lean by a differential adjustment value, associated with an irregular running differential value and the injection quantity of at least one of the remaining cylinders, which are associated with the same lambda probe, is adjustable accordingly in the direction of rich, so that in total, a predetermined lambda value of the group, of at least approximately 1, is achieved, wherein a differential adjustment value individual to the cylinder is adjustable in this manner for each cylinder of the defined group, wherein correction values individual to the cylinder are determined, and wherein the differential adjustment values individual to the cylinder are related to one another.