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.
申请公布号
US4811561(A)
申请公布日期
1989.03.14
申请号
US19880164958
申请日期
1988.03.07
申请人
VICKERS, INCORPORATED
发明人
EDWARDS, THOMAS L.;EL-IBIARY, YEHIA M.;GUNDA, RAJAMOULI;LEEMHUIS, RICHARD S.;PHILLIPS, FRED H.;RODE, MELVIN A.