EP 1544148 A1 20050622 - BRAKE CONTROLLER OF ELEVATOR
Title (en)
BRAKE CONTROLLER OF ELEVATOR
Title (de)
BREMSSTEUERUNG FÜR AUFZUG
Title (fr)
COMMANDE DE FREIN D'ASCENSEUR
Publication
Application
Priority
- JP 0301385 W 20030210
- JP 2002283672 A 20020927
Abstract (en)
A brake control apparatus for an elevator includes an electromotive force estimating section for estimating an electromotive force of an electromagnet resulting from a moving speed of an armature attracted to a brake coil of the electromagnet that drives a brake shoe of an elevator brake, and a compensating section for supplying to the electromagnet a voltage command that is compensated so as to match the electromotive force or an integrated value of the electromotive force to a target value. A brake coil voltage is controlled so as to suppress the moving speed of the armature after the armature starts moving upon brake application, whereby the brake operation noise generated upon collision of the brake shoe with a brake drum can be reduced. <IMAGE>
IPC 1-7
IPC 8 full level
B66B 1/32 (2006.01)
CPC (source: EP KR)
B66B 1/32 (2013.01 - EP KR)
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
EP 1544148 A1 20050622; EP 1544148 A4 20080326; EP 1544148 B1 20121017; CN 1325361 C 20070711; CN 1556770 A 20041222; JP 4102362 B2 20080618; JP WO2004028945 A1 20060119; KR 100572787 B1 20060424; KR 20040054806 A 20040625; WO 2004028945 A1 20040408
DOCDB simple family (application)
EP 03703305 A 20030210; CN 03801121 A 20030210; JP 0301385 W 20030210; JP 2004525638 A 20030210; KR 20047007954 A 20030210