Automotive touchscreen controls with simulated texture for haptic feedback
US9829979B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2014 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | May 21, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2360/1442
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A vehicle control system uses a touchscreen display to displaying a graphical HMI and detect a contact point where touched by a user's finger. A haptic texture system has an electrode disposed across the touchscreen display and a signal generator generating an oscillating signal to produce a potential difference between the finger and the electrode resulting in a corresponding perceived texture as the finger slides over the touchscreen. A control circuit is configured to set at least a frequency or amplitude of the oscillating signal to vary the perceived texture according to first and second modes while navigating the graphical HMI. The first mode uses a localized texture mapping defined by respective feature icon selection regions on the touchscreen display. The second mode uses a status texture mapping relating the perceived texture to each potential adjustment setting available for a feature icon that has been selected using the first mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.