ELEVATOR BRAKE PERFORMANCE DETECTION METHOD, DETECTION DEVICE AND ELEVATOR BRAKE
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United States of America Patent
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Issued Date -
Sep 8, 2022
app pub date -
Nov 12, 2021
filing date -
Mar 8, 2021
priority date (Note) -
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Abstract
An elevator brake performance detection method includes controlling an input voltage or current of the electromagnetic member so that the elevator brake enters the braking state, and recording a corresponding current data trajectory of the electromagnetic member based on time characteristic; determining a first target point and a second target point in the current data trajectory according to the current data trajectory, the first target point and the second target point being a first peak point in the current data trajectory, and a start point at which the current value changes from decreasing to increasing in the current data trajectory, respectively; and calculating a time difference between the first target point and the second target point as a braking time of the elevator brake.
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