Search International and National Patent Collections

1. (WO2005102895) CONTROL DEVICE OF ELEVATOR

Pub. No.:    WO/2005/102895    International Application No.:    PCT/JP2004/004492
Publication Date: Nov 3, 2005 International Filing Date: Mar 30, 2004
IPC: B66B 1/30
Applicants: MITSUBISHI DENKI KABUSHIKI KAISHA
三菱電機株式会社
ARAKI, Hiroshi
荒木 博司
Inventors: ARAKI, Hiroshi
荒木 博司
Title: CONTROL DEVICE OF ELEVATOR
Abstract:
A control device of an elevator for changing a speed pattern determining the jerk, acceleration/deceleration, and rated speed of a car according to a torque instruction in starting by holding the torque instruction in starting after a specified time is passed after the elevator releases a brake. The elevator comprises a speed control device generating a torque instruction value by using a speed instruction value and a speed signal and controls an electric motor by a power converter by using the torque instruction value to lift the car and a balance weight. Also, a balance device detecting a load in the car and outputting a balance signal is installed in the elevator, an unbalance load on the car side and the balance weight side are calculated by using the balance signal, and the torque instruction value is corrected based on the unbalance load. According to the torque instruction, the speed pattern determining the jerk, acceleration/deceleration, and rated speed of the car is changed.