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:
May. 05, 2020
Filed:
Oct. 16, 2017
Weber-hydraulik Gmbh, Guglingen, DE;
Deere & Company, Moline, IL (US);
Christian A. von Holst, Hettenleidelheim, DE;
Michael Kremb, Rockenhausen, DE;
Tobias Hegler, Hassloch, DE;
Jacek Zatrieb, Guglingen, DE;
Weber-Hydraulik GmbH, Güglingen, DE;
Deere & Company, Moline, IL (US);
Abstract
A suspension system for a vehicle axle including at least one hydraulic suspension cylinder, which has at least one chamber, with the chamber being connected to a hydraulic accumulator and allowing a connection via switching arrangement as well as to a pressure source and a pressure release. A shut-off valve is arranged between the chamber and the accumulator, by which the suspension can be blocked. In order to avoid during the unblocking process that any sudden compensating motion of the axle suspension develops, here the suspension system includes at least one detection device connected to the chamber of the suspension cylinder and the accumulator, which is embodied to detect the pressure difference between the chamber and the accumulator. This way a pressure difference can be reliably detected at both sides of the shut-off valve, thus between the chamber of the suspension cylinder and the accumulator, and can be compensated in a targeted fashion during or before the opening of the shut-off valve for unblocking the suspension.