Method and arrangement for the open-loop and/or close-loop control of an operating variable of an internal combustion engine

US5293852A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Vera Lehner · Eberdingen, DE
• Ernst Wild · Oberriexingen, DE
• Helmut Janetzke · Hemmingen, DE
• Klemens Grieser · Langenfeld, DE

Key dates

• Filing date: May 18, 1992
• Grant date: Mar 15, 1994
• Expiry date: May 18, 2012

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D41/2438
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method and an arrangement for open-loop control and/or closed-loop control of an operating variable of an internal combustion engine is suggested with a transfer element fixing the relationship between input and output variables in the form of a characteristic curve or characteristic field such as an electrically actuable actuator, which directly or indirectly influences the operating variable of the engine of a motor vehicle and which fixes the relationship between the driving and operating variable or a variable influencing this operating variable in the form of a characteristic curve or a characteristic field. The transfer element or the characteristic curve or the characteristic field is subjected to changes. By adapting the characteristic curve or the computation instruction representing the characteristic curve or the characteristic field, these are adapted to these changes. This adaptation is performed in such a manner that at least one region of the characteristic curve or of the characteristic field is rotated about a pregiven point which lies outside of the characteristic curve and is specific to the actuator or to the engine. This point is adaptable in the context of a…