Elevator system

Details Elevator system Elevator system

1992-06-24

1995-02-14

Stephan, Steven L.

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

318800, 318432, 318105, B66B 106, B66B 128, H02P 742, H02P 700

Patent

active

053897498

ABSTRACT:
An elevator system which is provided with power converters, electric motors supplied with power from the power converters, and a torque distributing section having functions for determining allocation of output power from the power converters on the basis of a required torque, by which an elevator is operated on the basis of functions selected in accordance with the operation mode. The system is able to save power in the elevator operation and also improve control functions and increase system capacity.

REFERENCES:
patent: 3891064 (1975-06-01), Clark
patent: 4349772 (1982-09-01), Weiss
patent: 4426611 (1984-01-01), Espelage et al.
patent: 4516665 (1985-05-01), Watanabe
patent: 4602198 (1986-07-01), Weiss et al.
patent: 4995478 (1991-02-01), Oshima et al.
patent: 5077508 (1991-12-01), Wycoff et al.
patent: 5099186 (1992-03-01), Rippel et al.
patent: 5142468 (1992-08-01), Nerem
patent: 5241141 (1993-08-01), Cominelli

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