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:
Jul. 08, 2025
Filed:
May. 19, 2022
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Florian Mühlfeld, Kürnach, DE;
Matthias Müller, Haßfurt, DE;
Pierre Mesnier, Röthlein, DE;
Ramazan Uzunkaya, Bergrheinfeld, DE;
Ulrich Quell, Fulda, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A method for operating a parking lock system () with a parking interlock gear () is provided. The parking lock system () also includes a parking pawl () insertable with an insertion section () in one of recesses () of the parking interlock gear () in order to interlock the parking interlock gear (), a parking lock actuator () for the parking pawl (), and a parking lock sensor () for detecting an absolute rotation angle position of the parking interlock gear (). The method includes detecting an absolute rotation angle position of the parking interlock gear () and comparing the detected absolute rotation angle position with a reference rotation angle position. When the particular absolute rotation angle position is situated behind the reference rotation angle position as viewed in the particular direction of rotation of the parking interlock gear (), a rattling process of the parking pawl () is detected.