| 摘要 |
<p>A time division multiplexed (TDM) hydraulic control system (40) having a plurality of channels (42,44,46), each channel having a servo actuator. Electrical demand signals are arranged in TDM sequence and applied to a pilot valve (58) so that the pilot valve produces a plurality of hydraulic signals. The hydraulic signals in turn are coupled to a separate commutator (70) which distributes the hydraulic signals to the associated channels. The pilot valve is arranged with a full annular output port (62) to maximize the port area and thereby the flow rate to the channels. The commutator size and port area is coordinated to that of the pilot valve to minimize pressure drop across the commutator and to maximize flow rate to the channels.</p> |
