Position dependent rate dampening in any active hand controller
US5347204A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1992 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Oct 6, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20201
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A control system for an active hand controller, for example, uses a control stick connected to and controlled by a motor. Electronics are provided to control the motor to eliminate oscillations due to motor torque and high gain due to breakout at the control stick when the control stick is at about its null position. Both hardware as well as software implementations can provide position dependent dampening to the control sticks such that when the control stick is located about a null position, a higher rate of dampening is provided than when the control stick is located outside the null position, when a lower rate of dampening is provided. The system provides a stable active hand controller control stick without degraded force and feel characteristics of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.