Method and control device for metering fuel to combustion chambers of an internal combustion engine

US7920957B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Patrick Mattes · Stuttgart, DE
• Mark Damson · Stuttgart, DE
• Matthias Schueler · Steinheim, DE
• Christian Mader · Gerlingen, DE
• Michael Kessler · Rutesheim, DE
• Vincent Dautel · Stuttgart, DE

Key dates

• Filing date: Jun 29, 2006
• Grant date: Apr 5, 2011
• Expiry date: Feb 1, 2027

Classification

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

Abstract

A method for metering fuel into a combustion chamber of an internal combustion engine is provided, in which a fuel quantity to be metered for a combustion is metered by a preinjection and at least one additional injection, and in which, in the operation of the internal combustion engine, quantity errors of the preinjection are ascertained from the signal of at least structure-borne noise sensor. The method is distinguished in that a correction value is formed as a function of the quantity error of the preinjection, and at least one of the additional injections is corrected using the correction value. A control device is also provided that controls the method.