Elevator speed control device, elevator speed controlling method and elevator speed controlling program
US7954604B2 · kind B2 · utility
2Cited by
8References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 6, 2006 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | May 22, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B1/302
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elevator speed governor for an elevator in which an elevator car (1) is attached to one end of a rope (2) having a counterweight (3) on the other end and driven by a motor (5) via the rope (2) comprises a motor current detector (15) that detects a motor current of the motor (5), a target speed determining section (11) that determines a target speed in accordance with the motor current detected by the motor current detector (15), and a motor control section (13) that controls the motor (5) so that the elevator car (1) moves at the target speed determined by the target speed determining section (11).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.