Method for monitoring a drive train

US8311714B2 · kind B2 · utility

Assignee

• GETRAG Getriebe- und Zahnradfabrik Hermann Hagen · DE

Inventors

• Martin Seufert · Steinheim, DE
• Tobias Kalisch · Villingen-Schwenningen, DE
• Markus Goldbach · Heilbronn, DE
• Michael Schachtmann · Schonach, DE
• Ralf Hettich · Echterdingen, DE
• Matthias Neundorf · Villingen, DE

Key dates

• Filing date: Jun 24, 2010
• Grant date: Nov 13, 2012
• Expiry date: Dec 30, 2030

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2061/166
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A method for monitoring an automated drive train of a motor vehicle, in particular of a passenger car. The drive train comprises a drive engine, a friction clutch arrangement and a multi-speed transmission. The friction clutch arrangement connects or disconnects the drive engine to/from the multi-speed transmission. The method comprises the step of determining at least one rotational speed parameter of the drive train; checking whether the rotational speed parameter is greater than a first threshold value for a first predetermined time interval, and initiating a measure in the drive train in order to lower the rotational speed parameter if the rotational speed parameter is greater than the first threshold value for the first predetermined time interval.