System and method for controlling semi-active actuators arranged to minimize vibration in elevator systems
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United States of America Patent
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Sep 30, 2014
Grant Date -
Nov 14, 2013
app pub date -
Feb 21, 2013
filing date -
May 14, 2012
priority date (Note) -
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Abstract
A method controls a set of semi-active actuators arranged in an elevator system to minimize a vibration of an elevator car. The elevator system is represented with a model of a virtual elevator system having a single virtual semi-active actuator arranged to compensate a virtual disturbance. The virtual disturbance is determined using a motion profile of position of the elevator car during the operation and a disturbance profile of the virtual disturbance. A state of the elevator system is determined using the model of the virtual elevator system, the virtual disturbance and a signal indicative of a horizontal acceleration of the elevator car during the operation. Each actuator of the set of semi-active actuators is controlled based on the state of the elevator system and according to a control policy of the virtual semi-active actuator.
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