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:
Sep. 09, 2025
Filed:
May. 08, 2020
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Jens Eisenbeiss, Fuerstenzell, DE;
Roland Bösl, Neuburg am Inn, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A test bench and a method to predict pressure oscillations in a vehicle tire. The tire is rotatably positioned, via a bearing on a test bench rim, the tire is pressurized with fluid, a load is applied on the tire, the tire is accelerated according to pre-determinable speed ramp to a final speed, the fluid in accordance with the tire speed, undergoes an oscillation excitation, and reacts to the oscillation excitation with a pressure oscillation. The method is characterized in that an effective force of the tire, due to the pressure oscillation, at the bearing is continuously detected, and that a descriptive data set is determined for the tire speed over the frequency, a timing signal of the speed ramp undergoes a Fourier transformation and, in an analogous manner, a reference data set is created through the use of a vehicle rim instead of the test bench rim.