Multiplexed hydraulic control system with plural selector valves
US5054369A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1989 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Jul 28, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B19/4144
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A multiplexed hydraulic control system having a plurality of channels and a common source of modulated hydraulic fluid. The common source is shared among the plurality of channels by providing a plurality of selector valves, one for each channel, with electrical solenoids for the selector valves being individually controlled by a control means. In a normal operating mode, the selector valves are operated individually and the modulating means is controlled to direct fluid to the selected channel in accordance with the demands placed on movement of the actuator in that channel. In a second slewing mode, multiple selector valves are energized at the same time and the modulator is controlled to produce sufficient fluid flow to slew all of the actuators in the selected channels at a desired rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.