A system for releveling an elevator car floor with a landing floor includes a load weight sensor to sense a load weight of an elevator car at a landing floor, and a releveling controller operably connected to the load weight sensor to calculate a corrective velocity for the elevator car based on the load weight and estimates of the effective stiffnesses at the landing floor. A machine is operably connected to the releveling controller with both feedback and feedforward control and the elevator car to apply the corrective velocity to the elevator car thereby reducing a mismatch between the elevator car and the landing floor.
IMPROVED ELEVATOR RELEVELING CONTROL
VERBESSERTE AUFZUGSRÜCKHOLSTEUERUNG
COMMANDE DE REMISE À NIVEAU D'ASCENSEUR AMÉLIORÉE
2017-11-01
Patent
Electronic Resource
English
IPC: | B66B Aufzüge , ELEVATORS |
Freight elevator door opening releveling protection method
European Patent Office | 2024
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