Patent ID: 9500154
Filing Date: 2016-11-22
CPC Classification: F02D,Y02T

Claim Text:
1. An adaptation method of an injector of an internal combustion engine, with which an actually injected fuel quantity is adapted to a setpoint injection quantity, the method comprising: actuating the injector with a test injection pulse in at least one segment of an injection cycle during an active fuel injection operating state of the internal combustion engine with an active rotational speed control, and detecting a first rotational speed signal in a segment of the injection cycle with a normal injection pulse, detecting a second rotational speed signal in a segment of a subsequent injection cycle with a normal injection pulse and the additional test injection pulse, wherein the first rotational speed signal and the second rotational speed signal are determined in the same segment of the respective injection cycle, and comparing the detected first rotational speed signal with the detected second rotational speed signal, correcting the injected fuel quantity based on the detected change in the rotational speed signal, wherein wherein the method is performed during a normally energized operating state of the internal combustion engine.