Multi-drive thrust manager for elevator control
US9840395B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2016 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Jul 20, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B9/003
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
According to an aspect, an elevator system includes a propulsion system having a plurality of motor segments forming a primary portion and a plurality of drives to impart force on a secondary portion coupled to an elevator car. The elevator system also includes a controller operable to identify a local neighborhood of the drives and determine a health status of each of the drives within the local neighborhood. The controller is further operable to adjust a thrust command per active drive of the local neighborhood based on at least one of the health status and a position of each active drive of the local neighborhood with respect to the secondary portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.