Controller for mechanically actuated device
US4463297A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1982 |
| Grant date | Jul 31, 1984 |
| Priority date | — |
| Expiry date | Oct 5, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/18
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A controller is described for limiting the rate and acceleration of a device positioned by at least one actuator which responds to a sequence of position commands separated by time intervals incorporating a subtractor for taking the difference of two consecutive position commands to provide a difference signal in vector form, means for determining the magnitude of the difference signal, a comparator for comparing the magnitude of the difference signal with a predetermined value, a switch for coupling the desired position command to the actuator at times the magnitude of the difference signal is less than or equal to the predetermined value, two dividers, two multipliers, an adder and normalizer for providing a new position command between the past command and the desired position command at times the magnitude of the difference signal exceeds the predetermined value. The acceleration is limited after the rate is limited by subtracting the latest position command from the prior position command to determine a new difference signal of the latest time interval which is subtracted from the difference signal of the previous time interval to determine the change in difference signal in v…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.