Elevator speed control
US9957131B2 · kind B2 · utility
1Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2012 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Dec 9, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B5/145
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Embodiments are directed to calculating a current associated with a motor of an elevator based on an output of a speed regulator, and controlling the elevator based on the current. Embodiments are directed to examining a feeder current obtained via a converter current sensor of a regenerative drive during a peak power condition, and regulating a speed of an elevator based on the feeder current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.