Adaptation method of an injector of an internal combustion engine

US9500154B2 · kind B2 · utility

Assignee

• CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

• Hui Li · Regensburg, DE
• Matthias Scheid · Regensburg, DE

Key dates

• Filing date: Oct 11, 2011
• Grant date: Nov 22, 2016
• Expiry date: Jan 16, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/40
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An adaption method of an injector of an internal combustion engine, in which an actually injected fuel quantity is adapted to a target injection quantity, may include: actuating the injector using a test injection pulse in at least one segment of an injection cycle; detecting a change in the rotational speed signal due to the test injection pulse in the segment associated with the test injection pulse; and correcting the injected fuel quantity based on the detected change in the rotational speed signal, wherein the method is performed during a normal operating state of the internal combustion engine.