Method and device for controlling an internal combustion engine

US6253748A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Gerhard Engel · Stuttgart, DE
• Joachim Berger · Bad Sobernheim, DE
• Manfred Birk · Oberriexingen, DE
• Manfred Strohrmann · Karlsruhe, DE
• Peter Rupp · Waiblingen, DE

Key dates

• Filing date: Aug 30, 1999
• Grant date: Jul 3, 2001
• Expiry date: Aug 30, 2019

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 an internal combustion engine. An actuator serves to influence the quantity of exhaust gas recirculated. A loop controller preselects the quantity of exhaust gas to be recirculated on the basis of a setpoint and an actual value which characterizes the quantity of exhaust gas recirculated. A first measured value is determined in a first position (open) of the actuator, and a second measured value is determined in a second position (closed) of the actuator, with the actual value or a correction value being preselectable on the basis of the difference between the two measured values.