Apparatus and method for controlling a plurality of elevator car

Details Apparatus and method for controlling a plurality of elevator car Apparatus and method for controlling a plurality of elevator car

1996-12-23

1999-03-23

Nappi, Robert E.

Elevator, industrial lift truck, or stationary lift for vehicle

Having computer control of elevator

Includes redundant circuitry

187380, B66B 128

Patent

active

058847294

ABSTRACT:
An apparatus and method for controlling a plurality of elevator groups each of which has at least a pair of elevator cars. The apparatus includes a master car controller for collecting data from and controlling a plurality of hall calls, cage calls and motors to thereby manage a respective group of elevator cars, and at least one slave car controller for receiving and internally backing up an allocation command and control command value from the master car controller to thereby control the hall calls, the cage calls and the motors in accordance therewith, thereby enhancing the operating stability of the elevator system.

REFERENCES:
patent: 4114730 (1978-09-01), Means et al.
patent: 4989695 (1991-02-01), Kubo
patent: 5142107 (1992-08-01), Yasuhiro
patent: 5654631 (1997-08-01), Farbee et al.

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