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:
Dec. 24, 2024
Filed:
Dec. 07, 2020
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Vitali Fribus, Quakenbrück, DE;
SIGNATA GmbH, Diepholz, DE;
Abstract
An operating device includes a first operating element with which a user can select one or numerous main functions of a vehicle and that can rotate about an axis of rotation and has at least one predefined fixed rotational position. A second operating element with which a user can adjust subfunctions of the main function can rotate about the axis of rotation and also comprises an actuator unit that comprises a magnetorheological medium configured to exert a retaining force on the second operating element based on a viscosity of the magnetorheological medium. The actuator unit is configured to set the viscosity on the basis of the main function selected with the first operating element, and on the basis of a rotational position of the second operating element.