Electricity: motive power systems – Positional servo systems – Multiple mode systems
Patent
1982-08-06
1984-07-03
Rubinson, G. Z.
Electricity: motive power systems
Positional servo systems
Multiple mode systems
318625, 318646, H02P 500
Patent
active
044581890
ABSTRACT:
A "mode switch" is used for smoothly switching a servovalve controlled device such as an SMC press, in particular, from control under one parameter to control by another. The mode switch provides a very smooth transfer of control from displacement control between two relatively movable parts to force control to provide for controlling the force exerted by actuators acting between the two parts. The mode switch electronically tracks the signals so that when the switching is made the signals are precisely equal to prevent abrupt changes in the control signals. This smooth transfer is achieved even under active control, that is when both control signals are changing in value.
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Moose Richard M.
MTS Systems Corporation
Rubinson G. Z.
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