Operating device having force feedback

US8413533B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Ludger Rake · Diepholz, DE
• Andreas Giefer · Bohmte, DE

Key dates

• Filing date: Nov 12, 2010
• Grant date: Apr 9, 2013
• Expiry date: Jul 6, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/2014
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An operating device for a gear-changing transmission operated by shift-by-wire is disclosed. The operating device includes an operating element, rotatably or pivotally supported in a bearing position having a position sensor device, and a device for producing force-feedback. The force-feedback device includes an adjustable counterforce element acting on the operating element, wherein the counterforce element comprises a fluid having controllably variable viscosity. The operating device including the counterforce element is produced by a bearing gap of the bearing position of the operating element, with the bearing gap being filled with the fluid. A space-saving integration of the counterforce element of a force-feedback device is enabled into the joint of an operating lever. Thus, the cost, structural complexity, and installation space required for an operating device having force-feedback is significantly reduced. The haptics of a mechanical operating lever can be realistically emulated.