Process control system

US7477980B2 · kind B2 · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Gerd Kraemer · Kohlhof, DE
• Heiko Konrad · Hockenheim, DE

Key dates

• Filing date: Sep 1, 2006
• Grant date: Jan 13, 2009
• Expiry date: Jul 10, 2027

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2200/0404
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A process control system for controlling at least one process actuator includes a first process model for driving at least one process actuator in such a manner that at least one process desired manipulating variable is generated for driving at least one process actuator; a second process model, which generates a process actual variable from at least one process actual manipulating variable of the at least one process actuator; and another process element for generating a comparison process actual variable. The first process model can be mapped by inverting the second process model, and a process actual variable difference, which is formed from a process actual variable and a comparison process actual variable, is fed via a control unit to the first and second process models. The process element is designed as a third process model with higher reproduction precision and includes at least one non-invertible process component.