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:
May. 21, 2019
Filed:
Jun. 07, 2018
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Felix Bühle, Eriskirch, DE;
Thomas Lemp, Langenargen, DE;
ZF FRIEDRICHSHAFEN AG, Friedrichshafen, DE;
Abstract
A method for operating a motor vehicle originates from a condition in which a torque converter lockup clutch () or a master clutch () is engaged and the transmission () is friction-locking. The torque converter lockup clutch () or the master clutch () is then brought into a slip condition on a control side, and a prime-mover rotational speed is decoupled from a driven-end rotational speed. The torque converter lockup clutch () or the master clutch () is brought into the slip condition without reducing a pressure control of the torque converter lockup clutch () or the master clutch () and by specifying a target rotational speed or a target torque for the prime mover () such that a torque or a target torque is greater than a power transmission capacity of the torque converter lockup clutch () or the master clutch () and slip is built up.