Control system for elevator active vibration control using spati

Details Control system for elevator active vibration control using spati Control system for elevator active vibration control using spati

1996-04-23

1997-01-28

Nappi, Robert

Elevator, industrial lift truck, or stationary lift for vehicle

With monitoring, signalling, and indicating means

Monitors operational parameter

187292, B66B 144

Patent

active

055979882

ABSTRACT:
A control system for compensating for horizontal vibrations in a travelling elevator includes at least one horizontal vibration sensor disposed in a plane wherein high frequency vibrations are spatially filtered. Each sensor is provided with a control circuit that provides control signals to actuators associated with roller guide wheels for applying force against a rail as needed to reduce vibrations.

REFERENCES:
patent: 5027925 (1991-07-01), Kahkipuro
patent: 5304751 (1994-04-01), Skalski et al.
patent: 5368132 (1994-11-01), Hollowell et al.
Ronald Grierson, "Electric Lift Equipment for Modern Buildings", pp. 18 and 19, 1923.

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