MAGNETORHEOLOGICAL FLUID BRAKE AND CONTROL METHOD THEREFOR
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United States of America Patent
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Jun 20, 2024
app pub date -
Mar 5, 2020
filing date -
Mar 5, 2020
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Abstract
A magnetorheological fluid brake and a control method therefor. When braking is not required, the brake does not work, and no field coils are energized. When braking is required and the brake receives a retarding braking signal, a field coil module is energized, the current is gradually increased, an oil port is gradually closed, and a back pressure inside the brake is also gradually increased, thereby gradually increasing a braking force so as to achieve a braking effect. By using the characteristics of a pump and the characteristics of a valve for the magnetorheological fluid, the viscosity of the magnetorheological fluid is adjusted, such that a back pressure is generated in a pump body, which in turn imposes a braking torque on a shaft, thereby performing braking.
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