Method for measuring opening and closing delay time of elevator brake
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United States of America Patent
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-
May 17, 2016
Grant Date -
Mar 5, 2015
app pub date -
Jul 28, 2014
filing date -
Aug 29, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Disclosed is a method for measuring opening and closing delay time of elevator brake, the method including outputting, by a brake signal output unit, a brake signal, receiving, by a brake signal checking unit, the brake signal and determining whether the brake signal is an opening signal or a closing signal to output an opening/closing determination signal, receiving, by a brake counter unit, the opening/closing determination signal, and starting a count for measuring a brake opening time or a brake closing time to accumulate and output counted value, determining, by a motor drive checking unit, whether a motor configured to drive an elevator is driven upon receipt of the counted values and outputting a drive determination signal, and receiving, by a brake opening/closing delay computation unit, the drive determination signal and the counted value to compute a brake opening/closing delay time.
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