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:
Nov. 26, 2019
Filed:
Sep. 28, 2016
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Roland Mair, Tettnang, DE;
ZF FRIEDRICHSHAFEN AG, Friedrichshafen, DE;
Abstract
The invention concerns a method for actuating a differential lock of a differential in a motor vehicle drive-train, such that when a locking command has been issued the differential lock is engaged as soon as there is essentially no rotational speed difference at the differential lock (S). To carry out a comfort-orientated actuation of the differential lock, when the locking command has been issued but before the differential lock is engaged, it is first checked whether there is a rotational speed difference at the differential lock (S). If there is a rotational speed difference, this is automatically reduced before the differential lock is engaged (S).