Method for determining a driving torque correction factor for compensating cooperating driving torques of different drive devices

US7507181B2 · kind B2 · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Marcel Fenkart · Munich, DE
• Juergen Gebert · Moosburg an der Isar, DE
• Oliver Grohe · Wächtersbach, DE
• Stephan Peuckmann · Germering, DE
• Stefan Schinagl · Munich, DE

Key dates

• Filing date: May 15, 2008
• Grant date: Mar 24, 2009
• Expiry date: May 15, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/72
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method and device for determining a driving torque correction factor for compensating the driving torques of a drive unit including a first drive device and a second drive device, both of which act with their driving torque on a common drive shaft. The method includes specifying and setting a desired driving torque for one of the two drive devices, adjusting a brake torque for the other of the two drive devices to a brake torque value, which is equivalent to the value of the actual driving torque (that occurs on the basis of the desired driving torque) of one of the two drive devices, and determining the correction value as a function of the specified desired driving torque of the one drive device and as a function of the brake torque value of the other drive device, the brake torque value being adjusted at the time of the compensation of the torques.