Method for a torque-based control of an internal combustion engine

US7203589B2 · kind B2 · utility

Assignee

• MTU FRIEDRICHSHAFEN GMBH · DE

Inventors

• Johannes Baldauf · Schallstadt, DE
• Michael Eckstein · Markdorf, DE
• Johanes Kech · Ravensburg, DE
• Andreas Kunz · Ladenburg, DE
• Christian Rehm · Friedrichshafen, DE
• Jörg Remele · Hagnau, DE
• Martin Schonle · Friedrichshafen, DE

Key dates

• Filing date: Jul 13, 2006
• Grant date: Apr 10, 2007
• Expiry date: Jul 13, 2026

Classification

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

Abstract

In a method for a torque-based control of an internal combustion engine wherein from an input value representing a desired engine power output a desired torque value is calculated, then the desired torque value is converted using a performance graph while taking another value into consideration to a first power output determining signal, which is then corrected by way of a relative efficiency and a power determining signal for controlling the drive torque is determined. The additional value corresponds to a relative friction moment, which is calculated from an actual deviation of the state of the engine from a standard state in which the relative friction moment is zero.