The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 2010
Filed:
Feb. 05, 2007
Ralf Dreibholz, Meckenbeuren, DE;
Johannes Kaltenbach, Friedrichshafen, DE;
Michael Gromus, Tettnang, DE;
Stefan Blattner, Vogt, DE;
Bernd Allgaier, Kressbronn, DE;
Stefan Kilian, Friedrichshafen, DE;
Peter Schiele, Kressbronn, DE;
Friedrich Tenbrock, Langenargen, DE;
Gerd Frotscher, Friedrichshafen, DE;
Ralf Dreibholz, Meckenbeuren, DE;
Johannes Kaltenbach, Friedrichshafen, DE;
Michael Gromus, Tettnang, DE;
Stefan Blattner, Vogt, DE;
Bernd Allgaier, Kressbronn, DE;
Stefan Kilian, Friedrichshafen, DE;
Peter Schiele, Kressbronn, DE;
Friedrich Tenbrock, Langenargen, DE;
Gerd Frotscher, Friedrichshafen, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A method is described for operating a parallel hybrid device train () of a vehicle having an internal combustion engine (), an electric engine () and an output () wherein the electric engine () is disposed in the power train between the output () and the internal combustion engine () and both between the internal combustion engine () and the electric engine () and between the electric engine () and the output () is respectively provided a frictionally engaged shifting element (). In addition, a nominal output torque abutting on the output () can be adjusted according to the transmitting capacity of the first shifting element () located between the electric engine () and the output (). According to the invention, the transmitting capacity of the first shifting element () is adjusted under control according to the nominal input torque required so that the first shifting element () has a transmitting capacity needed for producing the nominal output torque on the output (). Furthermore, an input rotational speed of the electric engine () is adjusted under regulation during a starting process of the internal combustion engine () in order to keep the first shifting element in slip operation at least during the starting process of the internal combustion engine () and to produce the nominal output torque on the output ().