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:
Jan. 28, 2025
Filed:
Sep. 16, 2022
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Jürgen Blaser, Meckenbeuren, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A motor vehicle transmission is connected between a drive aggregate and a drive output, and includes a powershiftable main transmission group with a plurality of forward gears and at least one reversing gear. A hydrodynamic starting element is connected between the drive aggregate and the transmission. The main transmission has frictional shifting elements of which, in each gear, a first number are closed and a second number are open. The main transmission has a parking lock that, when engaged, immobilizes an output shaft of the main transmission group. A downstream range group includes at least one interlocking shifting element and can be shifted between a first range and a second range. When the motor vehicle is stationary with the drive aggregate running, to shift the downstream range group the parking lock is first engaged, and then the downstream range group is shifted into neutral from a range to be disengaged.