Patent · US Expired

Method and apparatus for controlling the operation of a motor vehicle drive train

US6945907B2 · kind B2 · utility

1Cited by

2References

6Claims

0Family size

Assignee

LuK Lamellen und Kupplungsbau Beteiligungs KG · DE

Inventors

Martin Vornhem · Bogen, DE
Michael Reuschel · Ottersweier, DE
Christian Lauinger · Baden-Baden, DE
Franz Bitzer · Friedrichshafen, DE

Key dates

Filing date	Jan 9, 2004
Grant date	Sep 20, 2005
Priority date	—
Expiry date	Feb 27, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S477/905
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A target engine rotational speed depending at least upon the position of an accelerator pedal position and a motor vehicle speed is determined in a method for controlling the operation of a motor vehicle drive train having a drive motor and a branched power transmission with several steplessly adjustable transmission ratio regions, between which shifting takes place at a predetermined range shift transmission ratio. A transmission ratio corresponding to the target engine rotational speed and vehicle speed is determined and set, whereby the change with respect to time of the accelerator pedal position and/or the change with respect to time of the target engine rotational speed is used for determining the target engine rotational speed and is filtered when a difference between the actual transmission ratio and a transmission ratio shift range falls below a limit value.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.