Power transmission
US4811561A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1988 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | Mar 7, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/41309
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An electrohydraulic system includes a plurality of electrohydraulic devices individually controlled by microprocessor-based control electronics. The device controllers are connected in common by a bidirectional serial data bus to a master controller for coordinating operation of the various devices. Internal programming within the master controller establishes a repetitive time-sequence of windows for communications with the various device controllers for downloading control signals and parameters, and for uploading data indicative of system status and operation. The various device controllers include internal programming for operating the associated hydraulic devices as a function of control signals and parameters received from the master controller. Pseudo-devices are also connected to the bus for time-division multiplexed communication with the master controller and for performing overall system coordination and analysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.