Method for generating velocity profiles for elevator car doors

Details Method for generating velocity profiles for elevator car doors Method for generating velocity profiles for elevator car doors

1996-11-21

1999-01-12

Nappi, Robert E.

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

187293, B66B 1314

Patent

active

058593950

ABSTRACT:
A method for generating velocity profiles for elevator car doors includes a step of generating a straight line velocity versus time profile. The profile is then passed through a low pass finite impulse response filter to smooth the transition between different velocity and acceleration values and to limit certain undesired frequencies. The filtered profile can be integrated into a position versus time profile and stored in the RAM of a control system to be used for subsequent operations.

REFERENCES:
patent: 5159281 (1992-10-01), Hedstrom et al.
patent: 5162711 (1992-11-01), Heckler
patent: 5384439 (1995-01-01), Ernecke et al.
patent: 5410617 (1995-04-01), Kidd et al.
patent: 5495918 (1996-03-01), Peruggi et al.
patent: 5541955 (1996-07-01), Jacobmeyer

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