Fuel injection method for an internal combustion engine

US6505603B1 · kind B1 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Bernhard Schray · Oberriexingen, DE
• Thomas Edelmann · Bietigheim-Bissingen, DE

Key dates

• Filing date: Oct 31, 2000
• Grant date: Jan 14, 2003
• Expiry date: Oct 31, 2020

Classification

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

Abstract

A fuel injecting method and a corresponding arrangement for an internal combustion (10), especially of a motor vehicle, wherein a first injection takes place during an induction stroke. Proceeding from operating characteristic variables of the engine (10), a tendency-to-knock signal is determined which characterizes the tendency to knock of the engine (10). At least one second injection takes place when the tendency-to-knock signal exceeds a threshold value. (FIG. 1)