Drive system, particularly for a motor vehicle, and process for operating it

US6487998B1 · kind B1 · utility

Assignees

• ISAD Electronic Systems GmbH & Co., KG · DE
• Gründl ünd Hoffmann GmbH Gesellschaft für elektrotechnische Entwicklungen · DE

Inventors

• Ullrich Masberg · Rösrath, DE
• Thomas Pels · Achern, DE
• Klaus-Peter Zeyen · Recklinghausen, DE
• Andreas Grundl · Hersbruck, DE
• Bernhard Hoffmann · Starnberg, DE

Key dates

• Filing date: Apr 13, 2001
• Grant date: Dec 3, 2002
• Expiry date: Apr 13, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/64
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The invention concerns a drive system, especially for a motor vehicle, with a multicylinder internal combustion engine, a device for shutting off at least some of the cylinders of the internal combustion engine, and a device for active reduction of rotational nonuniformities, acting in particular on a shaft, such as a drive shaft of the internal combustion engine, or a shaft that is coupled or which can be coupled to it, which is active at least for certain operating states during cylinder shutoff mode. A method of operating such a drive system is also disclosed.