Elevator profile selection based on absence or presence of passengers
US5241141A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 17, 1990 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Sep 17, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B1/285
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elevator system including variable speed motive means is disclosed wherein the motive means is controlled in response to a selected motion profile to effect desired operation of the elevator car. Multiple elevator car motion profiles are stored and depending upon whether or not an occupant is present in the elevator car, either a comfortable high quality ride profile having an increased flight time and lower acceleration and jerk rates or a high performance profile having a decreased flight time and higher acceleration and jerk rates is selected. If no passengers are detected in the elevator car by sensing the weight of the elevator car and its occupants, and by sensing the lack of car calls, then the elevator car is free to be dispatched to a floor having a hall call at a high performance rate to minimize the flight time to reach that floor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.