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:
Mar. 14, 2023
Filed:
May. 18, 2021
Wirtgen Gmbh, Windhagen, DE;
Christian Berning, Zülpich, DE;
Cyrus Barimani, Königswinter, DE;
Abstract
The self-propelled construction machine according to the invention, in particular road-milling machine, recycler, stabiliser or surface miner, comprises a machine frame, which is supported by a chassis, which has wheels or tracksA,B. A milling drumis arranged on the machine frame. The wheels or tracksA,B and the milling drumare driven by a drive unit. Furthermore, the construction machine comprises a control unitfor controlling the drive unitand a signal-receiving unitfor detecting at least one measurement variable M(t) which is characteristic of an operating state of the milling drum. The construction machine is characterised in that the rotational speed of the milling drumis adapted, on the basis of at least one measurement variable M(t) which is characteristic of a critical operating state of the milling drum, to the operating conditions of the construction machine in such a way that the milling drum is operated in a non-critical operating state. The adaptive open-loop control of the milling drum rotational speed allows the construction machine to be operated at an optimum operating point with respect to the milling drum rotational speed.