Method for operating a hybrid vehicle

US9376005B2 · kind B2 · utility

Assignee

• Dr. Ing. h.c. F. Porsche AG · DE

Inventors

• Martin Roth · Taufkirchen, DE
• Markus Goehring · Herrenberg, DE

Key dates

• Filing date: Apr 3, 2014
• Grant date: Jun 28, 2016
• Expiry date: Apr 3, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S903/903
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method is provided for operating a hybrid vehicle. The hybrid vehicle has an internal combustion engine and a first electric machine, to which a common input shaft of a transmission is assigned, for driving a first axle of the hybrid vehicle. The hybrid vehicle also has a second electric machine for driving a second axle of the hybrid vehicle, and a traction battery is provided for the two electric machines. The electric machines have a total power greater than the power of the internal combustion engine. The method includes operating the first electric machine in a generator mode for charging the traction battery when the hybrid vehicle is driven exclusively by internal combustion engine. The method ensures, with a high level of electrification, a long electromotive travelling range of the vehicle.