Method for adjusting the clutch torque of a motor vehicle depending upon the driving resistance

US7833127B2 · kind B2 · utility

Assignee

• Friedrichshafen AG · DE

Inventors

• Rainer Petzold · Friedrichshafen, DE
• Mario Steinborn · Friedrichshafen, DE
• Peter Herter · Ravensburg, DE
• Franz Bitzer · Friedrichshafen, DE

Key dates

• Filing date: Aug 3, 2007
• Grant date: Nov 16, 2010
• Expiry date: Feb 4, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S477/901
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method for controlling or regulating a clutch torque of a startup clutch of a motor vehicle, which first of all reliably prevents an unintentional rolling of the motor vehicle down a gradient and second enables a comfortable maneuvering mode, which requires no separate actuation of an operating element for activating a maneuvering mode, and also enables a precisely dosed speed definition during maneuvering on gradients, wherein the adjusted speed is substantially independent from the gradient of the ground and the motor vehicle load. A startup and maneuvering control device is provided according to the invention, which reads in driving resistance data, determines therefrom a driving resistance value, and determines a base value of the clutch torque of the automated startup clutch in dependence thereof, which is adjusted in dependence upon the accelerator pedal.