Title:
ELEVATOR
Document Type and Number:
WIPO Patent Application WO/2023/238321
Kind Code:
A1
Abstract:
Provided is an elevator that can reduce vibration of a car caused by external disturbances while maintaining control stability even when the vibration of the car is great. A car acceleration detector (9) provided on a car (5) of an elevator (1) detects the acceleration of the car (5). A control device (7) includes an acceleration controller (19) and a delay compensator (21). The acceleration controller (19) outputs a torque command value to reduce vibration of the car (5) on the basis of the acceleration of the car (5) detected by the car acceleration detector (9). The delay compensator (21) compensates for an input or an output of the acceleration controller (19) to offset effects of one or both a delay due to communication from the car acceleration detector (9) to the control device (7) and a mechanical delay from when a torque is generated by a hoisting machine (3) until the torque is transmitted to the car (5) through a main rope (4).
Inventors:
MINOBE MORISHIGE (JP)
YOKOYAMA EIJI (JP)
YOKOYAMA EIJI (JP)
Application Number:
PCT/JP2022/023277
Publication Date:
December 14, 2023
Filing Date:
June 09, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B66B11/08
Domestic Patent References:
| WO2020070795A1 | 2020-04-09 |
Foreign References:
| JP2009221008A | 2009-10-01 | |||
| JP2019112234A | 2019-07-11 |
Attorney, Agent or Firm:
TAKADA, TAKAHASHI & PARTNERS (JP)
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