Method for operating an internal combustion engine and corresponding arrangement

US6736102B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Johann Konrad · Eichberg, DE
• Martin Haussmann · Sachsenheim, DE
• Harry Friedmann · Renningen, DE

Key dates

• Filing date: Sep 3, 2002
• Grant date: May 18, 2004
• Expiry date: Sep 3, 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 for operating an internal combustion engine and a corresponding device are described, in which reference pulses are generated synchronously with respect to the cyclical movement of at least one part of the internal combustion engine. At least one event moment for the occurrence of at least one event is calculated by an output unit at specific, definitively preset time intervals of the cyclical movement. Moreover, an independent clock-pulse generator is provided which generates clock pulses, the interval of the clock pulses being independent of the movement, and the interval of the clock pulses being smaller than the interval of the reference pulses. The at least one event moment is expressed as the number of clock pulses of the independent clock-pulse generator, and the at least one event is triggered upon reaching the number of clock pulses. By observing the clock pulses of the independent clock-pulse generator counted between at least two successive reference pulses, a relationship value is formed which contains information about the future timing of the movement, this relationship value being used to alter the number of clock pulses.