Patent · US Expired

Method for upshifting of a parallel shaft gear

US7166059B2 · kind B2 · utility

8Cited by

1References

7Claims

0Family size

Assignee

LuK Lamellen und Kupplungsbau Beteiligungs KG · DE

Inventors

Dierk Reitz · Baden-Baden, DE
Thomas Pels · Achern, DE
Bard Vestgard · Drammen, NO

Key dates

Filing date	Jan 11, 2005
Grant date	Jan 23, 2007
Priority date	—
Expiry date	Jun 26, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/19288
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

In a method for upshifting a parallel shift transmission having two input shafts, each of which is coupleable via a clutch to the drive shaft of a driving engine, an output shaft, which may be brought into rotationally fixed engagement with the input shafts via different transmission gear sets, and at least one electric machine that is rotationally fixedly connectable to an input shaft for output of a boost torque, which boosts the drive torque of the driving engine, the boost torque produced by the electric machine during the phase in which the speed of the driving engine drops when shifting from an old gear into a new, higher gear is at least approximately replaced by the torque produced by the driving engine as a result of the drop in speed.

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