Method for generating velocity profiles for elevator car doors
US5859395A · kind A · utility
13Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1996 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Nov 21, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B19/416
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method for generating velocity profiles for elevator car doors includes a step of generating a straight line velocity versus time profile. The profile is then passed through a low pass finite impulse response filter to smooth the transition between different velocity and acceleration values and to limit certain undesired frequencies. The filtered profile can be integrated into a position versus time profile and stored in the RAM of a control system to be used for subsequent operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.