Method and device for controlling the operation of an internal combustion engine

US6802299B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Karsten Mischker · Leonberg, DE
• Rainer Walter · Pleidelsheim, DE
• Bernd Rosenau · Asperg, DE
• Udo Diehl · Stuttgart, DE
• Hermann Gaessler · Leinfelden, DE
• Juergen Schiemann · Markgröningen, DE
• Christian Grosse · Kornwestheim, DE
• Georg Mallebrein · Stuttgart, DE
• Volker Beuche · Stuttgart, DE
• Stefan Reimer · Markgröningen, DE

Key dates

• Filing date: May 27, 2003
• Grant date: Oct 12, 2004
• Expiry date: May 27, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/40
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A control system and a control method for an internal combustion engine have a cylinder including an intake valve and an exhaust valve with a fully variable valve-gear assembly. An engine control unit determines setpoint values with regard to a fresh gas charge, an internal residual gas charge, a torque reduction, an EGR control strategy, and a charging strategy. In addition, a transmission device is provided which transmits setpoint values determined by the engine control unit to a valve control unit in synchronization with the crankshaft angle. The valve control unit controls the fully variable valve-gear assembly of the intake and exhaust valve of the cylinder of the internal combustion engine on the basis of the setpoint values determined by the engine control unit.