ELEVATOR DOOR CONTROL DEVICE - MITSUBISHI ELECTRIC CORP

Title:

ELEVATOR DOOR CONTROL DEVICE

Document Type and Number:

WIPO Patent Application WO/2004/028950

Kind Code:

A1

Abstract:

There is provided an elevator door control device capable of appropriately detecting a torque instruction error, thereby increasing the error detection accuracy of the door open/close operation and reducing the erroneous detection of the door open/close operation error. The elevator door control device includes: a speed instruction section for outputting a speed instruction; a speed control section for outputting a torque instruction in accordance with a difference between the speed instruction and feedback speed; a reference torque instruction pattern storage section for storing a plurality of torque instruction patterns formed by a plurality of torque instructions sampled according to the door open/close operations and storing a reference torque instruction pattern obtained according to the torque instruction for each sampling common to the plurality of torque instruction patterns; an error detection torque pattern generation section for generating an error detection torque pattern from the reference torque instruction pattern; and error evading means for outputting an error evading instruction to the speed instruction section when the torque instruction exceeds the error detection torque pattern.

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WO/1981/001830	POSITION CONTROLLED ELEVATOR DOOR MOTION
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Inventors:

MIZUNO SHIGEKI
KOUKETSU MASAHIKO
ARAKI HIROSHI
YUMURA TAKASHI

Application Number:

PCT/JP2003/012155

Publication Date:

April 08, 2004

Filing Date:

September 24, 2003

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

B66B13/14; (IPC1-7): B66B13/14

Foreign References:

JPH09323877A	1997-12-16
US5144101A	1992-09-01
JPH08259154A	1996-10-08

Other References: