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:
Sep. 29, 2020
Filed:
Jun. 28, 2018
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Armin Haugg, Friedrichshafen, DE;
Thilo Schmidt, Meckenbeuren, DE;
ZF FRIEDRICHSHAFEN AG, Friedrichshafen, DE;
Abstract
An actuation arrangement () including an actuating device for actuating a transmission parking lock (). The actuating device having a piston () movable into an engaged position (E), which engages the transmission parking lock (), and into a disengaged position (A), which disengages the transmission parking lock (). The actuating device further has a cylinder () including a cavity (), in which the piston () is arranged and into which transmission oil is supplied to move the piston (), and a locking unit () configured for selectively fixing the piston (). The actuation arrangement further includes a valve (). When the valve () is in a first valve position, transmission oil is supplied to the transmission shift element () through a first line (), to actuate the transmission shift element (), and into the cavity () through the second line (), to actuate the transmission parking lock ().