Method for operating a parallel drive train of a vehicle

US7836988B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Ralf Dreibholz · Meckenbeuren, DE
• Johannes Kaltenbach · Friedrichshafen, DE
• Michael Gromus · Friedrichshafen, DE
• Stefan Blattner · Weingarten, DE
• Bernd Allgaier · Kreßbronn, DE
• Stefan Kilian · Friedrichshafen, DE
• Peter Schiele · Kreßbronn, DE
• Friedrich Tenbrock · Tettnang, DE
• Gerd Frotscher · Friedrichshafen, DE

Key dates

• Filing date: Feb 5, 2007
• Grant date: Nov 23, 2010
• Expiry date: Mar 24, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/62
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method for operating a parallel hybrid drive train of a vehicle having an internal combustion engine, an electric engine and an output. The electric engine being located in the power drive between the output and the internal combustion engine. A second shifting element is located between the internal combustion engine and the electric engine and a first shifting element between the electric engine and the output. Output torque driving the output can be adjusted according to the transmitting capacities of the first and second shifting elements and according to the input torque of the electric engine and/or internal combustion engine. These adjustments are corrected according to standards derived from divergences found in parameters during operation of the drive train.