Automatic calibration of motor speed loop gain for an elevator m

Details Automatic calibration of motor speed loop gain for an elevator m Automatic calibration of motor speed loop gain for an elevator m

1997-12-22

1999-03-09

Nappi, Robert E.

Elevator, industrial lift truck, or stationary lift for vehicle

With monitoring, signalling, and indicating means

Monitors operational parameter

187293, 318561, B66B 128, B66B 134, G05B 1300

Patent

active

058804161

ABSTRACT:
An elevator controller 7 is provided with logic 48 which automatically calculates a motor speed loop gain (J*) of an elevator motor controller 14 by running the elevator up and down while computing an average of a model speed reference signal W.sub.MRE for the up/down run and while varying J* and determining the value of J* at which the average of W.sub.MRE equals zero within a predetermined tolerance.

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