Transmission device and method for controlling and regulating a transmission device

US7479088B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Detlef Baasch · Friedrichshafen, DE
• Gerhard Gumpoltsberger · Friedrichshafen, DE
• Christoph Pelchen · Tettnang, DE
• Barbara Schmohl · Friedrichshafen, DE
• Ulrich Mair · Friedrichshafen, DE
• Thomas Rosemeier · Meckenbeuren, DE

Key dates

• Filing date: Oct 2, 2004
• Grant date: Jan 20, 2009
• Expiry date: Sep 8, 2025

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2200/2071
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A transmission for distributing a drive torque between at least two drive output shafts with at least two planetary gearsets, each having at least three-shafts. In each case, a shaft of a planetary gearset is connected to a drive input shaft and a second respective shaft of a planetary gearsets is the drive output shafts. A respective third shaft of the planetary gearsets communicates with a brake such that a degree of distribution of the drive torque between the two output shafts varies as a function of the transfer capacities of the brakes. A transmission device controls and regulates a drive torque from a drive engine between the two output shafts of the transmission device. The transfer capacities of the two brakes are adjusted such that one brake is in a synchronous condition and the transfer capacity of the other brake is varied between a lower and an upper limiting value.