Method for controlling an internal combustion engine

US9982609B2 · kind B2 · utility

Assignee

• Dr. Ing. h.c. F. Porsche AG · DE

Inventors

• Peter Baur · Monsheim, DE
• Moritz Martiny · Karlsruhe, DE

Key dates

• Filing date: Nov 18, 2014
• Grant date: May 29, 2018
• Expiry date: Nov 7, 2036

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2250/26
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method controls an internal combustion engine that has a drive output shaft connected to an input shaft of a transmission. The internal combustion engine, the transmission and a drive wheel are encompassed by a drivetrain for the drive of a motor vehicle. The method includes determining a rotational acceleration of the input shaft and determining an input torque at the input shaft of the transmission based on a product of the rotational acceleration and a speed reduction ratio-dependent moment of inertia of the drivetrain in a section between the input shaft and the drive wheel. A combustion torque of the internal combustion engine is controlled such that the input torque adheres to a predetermined maximum input torque at the input shaft of the transmission.