B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
B66B 5/00 (2006.01) B66B 1/06 (2006.01) B66B 1/34 (2006.01) B66B 3/00 (2006.01) B66B 7/02 (2006.01) B66B 7/04 (2006.01) B66B 11/02 (2006.01)
Patent
CA 2490948
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 (F a) increases. This controller signal (F a) is monitored by a comparator (28) such that the actuator (10) is deactivated if the controller signal (F a) becomes greater than a predetermined value (F a max)
Cortona Elena
Husmann Josef
Ag Inventio
Riches Mckenzie & Herbert Llp
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