Title:
【発明の名称】エレベータブレーキを制御する方法と装置
Document Type and Number:
Japanese Patent JP2000509357
Kind Code:
A
Abstract:
An apparatus and a method for controlling an elevator brake assembly (1) includes a control circuit (CM) for selectively connecting an electrical power supply (28) to a brake armature coil (9) to move an armature plate (4) between a brake actuated rest position against a brake friction lining (5) and a brake released hold position adjacent a brake housing (2). The control circuit (CM) applies a first voltage to the coil (9) to move the armature plate (4) against a force applied by a spring (3) from the rest position to the hold position in response to a signal on a brake pick signal line (BP). The control circuit (CM) applies a second voltage to the coil (9) to control the movement of the armature plate (4) by the spring (3) from the hold position to the rest position in accordance with a predetermined velocity versus distance curve to achieve minimum impact on the lining (5) at the rest position. A position sensor (11,12) is moved by the armature plate (4) to generate an actual position signal for adjusting the second voltage and a microswitch (10) is actuated by the armature plate (4) to signal the hold position. The control circuit (CM) self-calibrates by minimizing the position signal at the rest position and adjusting the velocity versus distance curve based upon the position signal at the hold position.
Inventors:
Ramos, The Julio Sea
Application Number:
JP53938097A
Publication Date:
July 25, 2000
Filing Date:
April 21, 1997
Export Citation:
Assignee:
INVENTIO AKTIENGESELLSCHAFT
International Classes:
B66B1/32; B66D1/54; B66D5/30; F16D55/02; F16D59/02; F16D65/14; F16D66/00; (IPC1-7): B66B1/32; B66D1/54
Attorney, Agent or Firm:
Yoshio Kawaguchi (2 outside)