Automatic open loop force gain control of magnetic actuators for elevator active suspension
US5929399A · kind A · utility
18Cited by
17References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1998 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Aug 19, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B11/028
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Automatic gain control is provided for a control means for controlling a magnetic actuator for an elevator horizontal active suspension. The gain is varied depending on the drive current in the coil of the electromagnet of the magnetic actuator, the airgap of the magnetic actuator, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.