公开(公告)号：US11959469B2

公开(公告)日：2024-04-16

申请号：US17637351

申请日：2020-08-20

Applicant: Putzmeister Engineering GmbH

Inventor： Carl Wiesenack ,  Benjamin Hoelzle ,  Michael Schaefer ,  Wolf-Michael Petzold ,  Jan-Martin Veit ,  Wilhelm F. Hofmann

IPC: F04B15/02 ,  F04B9/113 ,  F04B49/06 ,  F04B49/10 ,  F04B51/00

CPC classification number: F04B15/02 ,  F04B9/113 ,  F04B51/00 ,  F04B49/065 ,  F04B49/103 ,  F04B2201/0202

Abstract: A method monitors the state of a device having a first drive cylinder for receiving hydraulic fluid and a first drive piston which is movably arranged in the first drive cylinder. The method determines a speed of the first drive piston, establishes a difference between the determined speed of the first drive piston and an expected speed of the first drive piston, and determines a faulty state as a function of the difference established between the determined speed of the first drive piston and the expected speed of the first drive piston.

公开(公告)号：US12215509B2

公开(公告)日：2025-02-04

申请号：US17642605

申请日：2020-08-20

Applicant: Putzmeister Engineering GmbH

Inventor： Carl Wiesenack ,  Frederik Kort ,  Stefan Hoefling ,  Mirco Kuhlmey ,  Markus Frasch

IPC: E04G21/00 ,  E04G21/04

Abstract: A method is provided for operating a working machine having a device for conveying thick material. A number of target values relating to the operation of the device for conveying thick material can be adjusted by a user. The method includes the following steps: detecting a number of actual values of the device; calculating a target value optimum for a respective target value of the number of adjustable target values based on the number of detected actual values; and outputting a notification for the user, in the event that an adjusted target value of the number of adjustable target values does not correspond to its calculated target value optimum.