Patent · US Active

Method for operating a hybrid drive system having a torque converter

US8298117B2 · kind B2 · utility

10Cited by

0References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Andreas Seel · Bonn, DE
Rene Schenk · Tamm, DE
Oliver Kaefer · Murr, DE
Thorsten Juenemann · Sindelfingen, DE

Key dates

Filing date	Oct 5, 2007
Grant date	Oct 30, 2012
Priority date	—
Expiry date	Jul 22, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/72
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A method for operating a hybrid drive system, in particular of a motor vehicle, having at least one electric machine and one internal combustion engine, a disconnecting clutch being provided between the electric machine and the internal combustion engine and a torque converter having a turbine wheel being provided between the electric machine and a hybrid drive output, the disconnecting clutch being engaged for starting the internal combustion engine. It is provided that, as a function of the rotational speed of the turbine wheel of the torque converter, a rotational speed is predefined for the electric machine such that no sudden torque change occurs at the hybrid drive output when the internal combustion engine is started.

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