The present invention concerns an elevator comprising: an elevator shaft (1) defined by surrounding walls and top (3A) and bottom (3B) end terminals; an elevator car (4) vertically movable in the elevator shaft (1); an elevator hoisting machinery (6) adapted to drive an elevator car (4); an electromechanical braking apparatus (12A, 12B) configured to brake movement of the elevator car (4); a first measuring device (14A, 14B, 14C) adapted to provide first position data and first speed data of the elevator car; a second measuring device (15A, 15B) adapted to provide at least a second position data of the elevator car (4); and a safety monitoring unit (17) communicatively connected to the first measuring (14A, 14B, 14C) device and the second measuring device (15A, 15B) and configured to determine a synchronized position (19) of the elevator car (4) from the first and the second position data, and to determine an elevator car slowdown failure in the proximity of the top (3A) or the bottom (3B) end terminal from the first speed data (20) and from the synchronized position (19) of the elevator car (4). The safety monitoring unit (17) is adapted to cause braking of the elevator car (4) with the electromechanical braking apparatus (12A, 12B) upon determination of the slowdown failure.
ELEVATOR
AUFZUG
ASCENSEUR
2022-06-01
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS |
ELEVATOR, ELEVATOR SYSTEM, ELEVATOR CONTROL METHOD, AND ELEVATOR GROUP MANAGEMENT METHOD
Europäisches Patentamt | 2019
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