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. 17, 2013
Filed:
Sep. 16, 2010
Rainer Haevescher, Stemwede, DE;
Rainer Haevescher, Stemwede, DE;
Lemforder Electronic GmbH, Espelkamp, DE;
Abstract
The invention is directed to an actuation device for a shift-by-wire-actuated speed change gearbox. The actuation device includes an operating lever (), a position sensor () and a device for haptic emulation. The haptic emulation device includes a damping element () which is joined () on the base () of the actuation device, as well as a motor-driven actuator (). According to the invention, the actuation device is characterized by a spring element () which has a known spring rate and is disposed within the operative connection (W) between the operating lever (), the damping element () and the articulated joint (). The invention enables determination of the position of the operating lever and of the operating force applied to the operating lever by way of the spring element, using only a single position sensor. The haptic of a mechanical operating lever can be completely emulated.