System and method for operating magnetorheological fluid clutch apparatus
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United States of America Patent
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Feb 27, 2024
Grant Date -
May 13, 2021
app pub date -
Apr 23, 2019
filing date -
Apr 23, 2018
priority date (Note) -
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Abstract
A control system for controlling movements of an end effector connected to a clutch output of magnetorheological (MR) fluid clutch apparatuses. A clutch driver drives the MR fluid clutch apparatuses between a controlled slippage mode, in which slippage in the MR fluid clutch apparatuses varies, and a combined mode, in which slippage between clutch input and clutch output is maintained below a given threshold simultaneously for both of the MR fluid clutch apparatuses, the two clutch outputs resisting movement of the end effector in the same direction. A mode selector module receives signals representative of a movement parameter(s) of the end effector, to select and switch a mode based on the signals. A movement controller controls the clutch driver and the motor driver to displace the end effector based on the selected mode and on commanded movements of the end effector for the end effector to achieve the commanded movements.
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