Method and brake controller for controlling a brake of an elevator system

The invention relates to a method for controlling a brake (3) of an elevator system (1), and to a brake controller (25) controlling said method. The brake (3) in this case comprises an armature (15), which is drawn by an electromagnet (17) against a spring force into a release position in order to r...

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Bibliographic Details
Main Author LINDEGGER, Urs
Format Patent
LanguageEnglish
Published 24.06.2021
Subjects
ELEVATORS
ESCALATORS OR MOVING WALKWAYS
HAULING
HOISTING
LIFTING
PERFORMING OPERATIONS
TRANSPORTING
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Summary:The invention relates to a method for controlling a brake (3) of an elevator system (1), and to a brake controller (25) controlling said method. The brake (3) in this case comprises an armature (15), which is drawn by an electromagnet (17) against a spring force into a release position in order to release the brake (3) from a brake position. The method comprises the following steps: applying an initial electric voltage to the electromagnet (17) and measuring an amperage I(t) then fed to the electromagnet (17); and reducing the voltage applied to the electromagnet (17) to a holding voltage in response to an identification of a typical behaviour over time of the measured amperage I(t) which occurs characteristically when the armature (15) is moved from the braking position into the release position. The method enables the brake (3) to be activated more quickly in certain situations from a released state into a braking state.
Bibliography:Application Number: AU20190409946