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:
Mar. 09, 2021
Filed:
Nov. 22, 2016
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Michael Preuß, Friedrichshafen, DE;
Johannes Kaltenbach, Friedrichshafen, DE;
Christian Mittelberger, Ravensburg, DE;
Johannes Glückler, Eriskrich, DE;
Stefan Renner, Bodman-Ludwigshafen, DE;
Rayk Gersten, Friedrichshafen, DE;
ZF FRIEDRICHSHAFEN AG, Friedrichshafen, DE;
Abstract
A method of operating a vehicle having a hybrid drive, a transmission with shift elements, a drive output with a brake, a main transmission with input shafts, an output shaft and planetary gear sets (PG, PG). The main transmission has five gear planes. One shift element can connect a gear plane to an element of gear set (PG) adjoining the main transmission. Another shift element couples a further element of gear set (PG) either to the output shaft or a housing. An electric machine is permanently connected to an element of gear set (PG). If, while driving with a transmission gear engaged, the drive output brake is engaged for a full brake application, a shift element of the transmission is first relieved by the electric machine and/or a brake assigned to one of the input shafts and then subsequently disengaged to decouple the combustion engine from the drive output.