EP 1547955 B1 20061108 - Controller supervision for active vibration damping of elevator cars
Title (en)
Controller supervision for active vibration damping of elevator cars
Title (de)
Steuerungseinheit für die aktive Schwingungsdämpfung der Vibrationen einer Aufzugskabine
Title (fr)
Système de contrôle pour la réduction active des vibrations d'un cage d'ascenseur
Publication
Application
Priority
- EP 04029142 A 20041209
- EP 03405919 A 20031222
Abstract (en)
[origin: EP1547955A1] The present invention automatically detects the onset of instability of the active ride control system and activates to system shutdown if this happens. As an elevator car (1) is guided along rails (15) by guide elements (6), a plurality of sensors (11,12) mounted on the car (1) measure vibration transverse to a direction of travel. The signals from the sensors (11,12) are input to a controller (19) which in turn produces a controller output signal (F). This signal (F) is used to energise an actuator (10) positioned between the car (1) and the guide elements (6) and thereby dampen the vibrations acting on the car (1). As instability sets in, a controller signal (Fa) increases. This controller signal (Fa) is monitored by a comparator (28) such that the actuator (10) is deactivated if the controller signal (Fa) becomes greater than a predetermined value (Fa max) <IMAGE>
IPC 8 full level
CPC (source: EP)
B66B 7/027 (2013.01); B66B 7/042 (2013.01); B66B 7/046 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 04029142 A 20041209