Device and method for controlling a fluid actuator
US8594852B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2010 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Sep 19, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B21/08
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A device for controlling the motion of a fluid actuator which includes an electrically operated control valve that controls the flow of a pressurized fluid to and from the fluid actuator in response to signals generated by an actuator controller which uses an on-board, user programmable microprocessor where the user can download various control algorithms into the microprocessor for controlling the motion of the actuator based on such parameters as fluid pressure and flow rates and actuator displacement. Various external sensors can be connected to the controller for monitoring and control purposes using various signal interfaces such as an analog to digital converter or an SSI interface. A local communication bus is used to communicate with one or more slave actuators each having their own electrically operated control valve that controls the flow of a pressurized fluid to and from the slave actuator in response to control signals generated by the controller and sent to the slave control valve over the local bus. Sensors are used to measure various operating parameters of the slave actuator and generate signals that are sent to the controller over the local bus. A supervisory comp…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.