Method and device for operating an internal combustion engine

US7900596B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Dirk Hartmann · Aßling, DE
• Georg Mallebrein · Stuttgart, DE
• Werner Mezger · Weinsberg, DE
• Andreas Roth · Karlsruhe, DE
• Henri Barbier · Schwieberdingen, DE
• Nikolas Poertner · Stuttgart, DE
• Juergen Rappold · Beilstein, DE
• Ingo Fecht · Ludwigsburg, DE

Key dates

• Filing date: Jul 20, 2006
• Grant date: Mar 8, 2011
• Expiry date: Jul 21, 2026

Classification

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

Abstract

A method and a device for operating an internal combustion engine are provided which make it possible to implement different deceleration requests to the internal combustion engine by switching over between half engine operation and full engine operation. A deceleration request is received particularly in a nonoperating state. A switchover is made between a first operating state and a second operating state of the internal combustion engine as a function of the magnitude of the deceleration request. The first operating state and the second operating state differ, in this instance, in the number of cylinders whose charge changing process is interrupted.