Actuation device with haptic emulation
US8607657B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 16, 2010 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Jun 16, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20043
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
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 (2), a position sensor (5) and a device for haptic emulation. The haptic emulation device includes a damping element (3) which is joined (8) on the base (10) of the actuation device, as well as a motor-driven actuator (6). According to the invention, the actuation device is characterized by a spring element (4) which has a known spring rate and is disposed within the operative connection (W) between the operating lever (2), the damping element (3) and the articulated joint (8). 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.