Elevator vibration damping apparatus and method

Details Elevator vibration damping apparatus and method Elevator vibration damping apparatus and method

2008-07-22

2008-07-22

Salata, Jonathan (Department: 2837)

Elevator, industrial lift truck, or stationary lift for vehicle

Having specific load support drive-means or its control

Includes control for power source of drive-means

C187S391000

Reexamination Certificate

active

07401683

ABSTRACT:
The present invention automatically detects the onset of instability of an elevator active ride control system and activates a system shutdown if it occurs. As an elevator car is guided along rails by guide elements, a plurality of sensors mounted on the car measure vibration transverse to a direction of travel. The signals from the sensors are input to a controller which in turn produces a controller output signal. This signal is used to energize an actuator positioned between the car and the guide elements and thereby dampen the vibrations acting on the car. As instability sets in, a controller signal increases. The controller signal is monitored by a comparator such that the actuator is deactivated if the controller signal becomes greater than a predetermined value.

REFERENCES:
patent: 5294757 (1994-03-01), Skalski et al.
patent: 5304751 (1994-04-01), Skalski et al.
patent: 5810120 (1998-09-01), Jamieson et al.
patent: 5814774 (1998-09-01), Remmers et al.
patent: 5824976 (1998-10-01), Jamieson et al.
patent: 5864102 (1999-01-01), Jamieson et al.
patent: 5896949 (1999-04-01), Hamdy et al.
patent: 5929399 (1999-07-01), Jamieson et al.
patent: 6089355 (2000-07-01), Seki et al.
patent: 7164251 (2007-01-01), Morishita

Affiliated with

Also associated with

Rating

Elevator vibration damping apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Elevator vibration damping apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elevator vibration damping apparatus and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2808371