Method and device for controlling a gas fill of cylinders of an internal combustion engine

US6681729B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Hermann Gaessler · Leinfelden, DE
• Udo Diehl · Stuttgart, DE
• Karsten Mischker · Leonberg, DE
• Rainer Walter · Pleidelsheim, DE
• Bernd Rosenau · Asperg, DE
• Juergen Schiemann · Markgröningen, DE
• Christian Grosse · Kornwestheim, DE
• Georg Mallebrein · Stuttgart, DE
• Volker Beuche · Stuttgart, DE
• Stefan Reimer · Markgröningen, DE

Key dates

• Filing date: Dec 26, 2001
• Grant date: Jan 27, 2004
• Expiry date: Jan 21, 2022

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 and a device for controlling a gas fill of a plurality of cylinders in an internal combustion engine having variable valve timing, in which a detection signal of a filling sensor is sampled with a sampling rate. Furthermore, a detection interval is determined for one cylinder. The sampling values for ascertaining a sampling-value sum are added up within this detection interval. In addition, a number of sampling values within the first detection interval are counted for ascertaining a first count value. The air mass filled into the first cylinder is then ascertained by forming a quotient from the sampling-value sum and the count value.