Load control in an internal combustion engine

US6220232A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Oskar Torno · Schwieberdingen, DE
• Carsten Kluth · Stuttgart, DE
• Werner Haming · Neudenau, DE
• Iwan Surjadi · Leinfelden, DE
• Steffen Franke · Schwieberdingen, DE
• Michael Bauerle · Markgröningen, DE

Key dates

• Filing date: Dec 6, 1999
• Grant date: Apr 24, 2001
• Expiry date: Dec 6, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

To achieve a very sturdy automatic control of the boost pressure, the integration of system deviation of the boost pressure, which is carried out by an integrator, is limited to a predefinable limiting value. Limiting value is composed of a basic value and a correction value superimposed upon it. Correction value is determined adaptively as a function of speed, a plurality of speed ranges being predefined. Adapted correction value can be increased or reduced stepwise, which mainly depends on whether the integral-action component of the manipulated variable for the boost pressure is smaller or greater than the current limiting value.