System and method for reducing lateral vibration in elevator systems
US8761947B2 · kind B2 · utility
6Cited by
20References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2010 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Aug 23, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/535
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A system and method reduce lateral movement of a car in an elevator system by detecting vibration of the car as a vibration signal. A damping coefficient for a feedback signal is determined according to the vibration signal and a state of the elevator system. A semi-active actuator is arranged between the car and a roller guide assembly. The semi-active actuator includes a rheological fluid, and flow characteristics of the rheological fluid are actuated according to the feedback signal to reduce the lateral movement of the car.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.