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:
Oct. 02, 2018
Filed:
Jun. 17, 2016
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Peter Schiele, Kressbronn, DE;
ZF FRIEDRICHSHAFEN AG, Friedrichshafen, DE;
Abstract
A hydraulic control device for an automatic transmission for a motor vehicle includes a shiftable throttle valve allocated to one or more shift elements of a plurality of hydraulically actuated shift elements. The shiftable throttle valve hydraulically connects a respective pressure-adjusting device of the one or more shift elements to a respective clutch cylinder of the one or more shift elements. The shiftable throttle valve is shiftable into at least a first shift position and a second shift position. A hydraulic resistance between a hydraulic transmission controller and the one or more shift elements of the plurality of hydraulically actuated shift elements is larger in the second shift position relative to the first shift position.