Elevator arrangement

Details Elevator arrangement Elevator arrangement

2008-02-12

2009-12-29

Benson, Walter (Department: 2837)

Elevator, industrial lift truck, or stationary lift for vehicle

With barrier for regulating access to load support

Includes motor or motor driven linkage for shifting barrier

C187S315000, C187S317000

Reexamination Certificate

active

07637355

ABSTRACT:
The method of the invention can be used to improve the performance of an elevator system. In the method, the acceleration and/or velocity of at least one door in the elevator system is measured and a dynamic model of the door is created. Using the model, an estimation of acceleration and velocity can be calculated as a function of unknown parameters. From the estimated acceleration or velocity and the measured acceleration or velocity an error function is obtained, and a search is performed in an optimizer to find its minimum value. The unknown parameters corresponding to the minimum value indicate the value of the kinetic parameters of the door at the instant being considered. By utilizing the calculated values of the kinetic parameters, the functions of the doors in the elevator system are optimized separately for each door. Using a genetic algorithm, it is possible to determine, in addition to the unknown kinetic parameters, the operational state of the door closing device as well.

REFERENCES:
patent: 5159162 (1992-10-01), Tatino
patent: 5274312 (1993-12-01), Gerstenkorn
patent: 5378861 (1995-01-01), Barten et al.
patent: 5503248 (1996-04-01), Peruggi et al.
patent: 5587565 (1996-12-01), Schroder-Brumloop et al.
patent: 5625175 (1997-04-01), Gutknecht et al.
patent: 5864104 (1999-01-01), Tawada et al.
patent: 7423398 (2008-09-01), Tyni et al.
patent: 2003/0000777 (2003-01-01), Barreiro et al.
patent: 2003/0217894 (2003-11-01), Perala et al.
patent: 1 544 152 (2005-06-01), None
patent: WO 2005073119 (2005-08-01), None

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